/* ============================================
   LifestyleFit AI - Main Stylesheet
   ChatGPT-inspired dark theme design
   ============================================ */

/* CSS Variables */
:root {
  /* Colors - Dark Theme (Original) */
  --bg-primary: #000000;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2a2a2a;
  --bg-sidebar: #1a1a1a;
  --bg-hover: #333333;
  --bg-message-user: #2a2a2a;
  --bg-message-assistant: #1a1a1a;

  --text-primary: #ffffff;
  --text-secondary: #888888;
  --text-muted: #666666;

  --accent: #3b82f6;
  --accent-hover: #2563eb;

  --border-color: #333333;
  --border-radius: 16px;
  --border-radius-sm: 8px;
  --border-radius-lg: 24px;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-size-sm: 13px;
  --font-size-base: 15px;
  --font-size-lg: 17px;
  --font-size-xl: 22px;
  --font-size-2xl: 28px;

  /* Layout */
  --sidebar-width: 260px;
  --header-height: 52px;
  --max-content-width: 768px;
}

/* Light theme */
[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f7f7f8;
  --bg-tertiary: #ececec;
  --bg-sidebar: #f9f9f9;
  --bg-hover: #ececec;
  --bg-message-user: #f7f7f8;

  --text-primary: #0d0d0d;
  --text-secondary: #6e6e6e;
  --text-muted: #999999;

  --border-color: #e5e5e5;
}

/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  overflow: hidden;
}

/* App Container */
#app {
  display: flex;
  height: 100vh;
  width: 100%;
}

/* ============================================
   Sidebar
   ============================================ */

.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 100;
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar.open {
  transform: translateX(0);
}

@media (min-width: 768px) {
  .sidebar {
    position: relative;
    transform: translateX(0);
  }
}

.sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  gap: var(--spacing-sm);
}

.sidebar__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  flex: 1;
}

.sidebar__header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.sidebar__new-chat,
.sidebar__close {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  transition: background-color 0.15s;
}

.sidebar__new-chat:hover,
.sidebar__close:hover {
  background-color: var(--bg-hover);
}

.sidebar__close {
  border: none;
}

@media (min-width: 768px) {
  .sidebar__close {
    display: none;
  }
}

/* Sidebar Overlay */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.sidebar-overlay.visible {
  opacity: 1;
  visibility: visible;
}

@media (min-width: 768px) {
  .sidebar-overlay {
    display: none;
  }
}

.sidebar__chats {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-sm);
}

.sidebar__empty {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  padding: var(--spacing-md);
}

.sidebar__loading {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: var(--spacing-md);
  color: var(--text-muted);
}

.sidebar__loading-spinner {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-top-color: var(--accent);
  animation: sidebar-loading-spin 0.8s linear infinite;
  flex: 0 0 auto;
}

.sidebar__loading-text {
  margin: 0;
  font-size: var(--font-size-sm);
}

@keyframes sidebar-loading-spin {
  to {
    transform: rotate(360deg);
  }
}

.chat-history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background-color 0.15s;
  margin-bottom: 2px;
  position: relative;
}

.chat-history-item__title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--font-size-sm);
}

.chat-history-item__menu {
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  padding: 4px;
  border-radius: var(--border-radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity 0.15s, background-color 0.15s;
}

.chat-history-item:hover .chat-history-item__menu {
  opacity: 1;
}

.chat-history-item__menu:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.chat-history-item:hover {
  background-color: var(--bg-hover);
}

.chat-history-item--active {
  background-color: var(--bg-tertiary);
  border-left: 3px solid var(--accent);
}

.chat-history-item--active:hover {
  background-color: var(--bg-tertiary);
}

.chat-history-item__title {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-history-item__count {
  font-size: 12px;
  color: var(--text-muted);
}

.sidebar__footer {
  padding: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.sidebar__toggle-theme {
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  width: 100%;
  text-align: left;
  margin-bottom: var(--spacing-sm);
  transition: background-color 0.15s;
}

.sidebar__toggle-theme:hover {
  background-color: var(--bg-hover);
}

.sidebar__guest {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.sidebar__guest::before {
  content: '';
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, #10a37f, #1a7f64);
  border-radius: 50%;
}

/* ============================================
   Main Content
   ============================================ */

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-md);
  height: var(--header-height);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.header__menu,
.header__new {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  transition: background-color 0.15s, color 0.15s;
}

.header__actions {
  position: relative;
  display: flex;
  align-items: center;
}

.header-quick-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 180px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
  padding: 6px;
  z-index: 100;
}

.header-quick-menu__item {
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  color: var(--text-primary);
  padding: 9px 10px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.header-quick-menu__item:hover {
  background: var(--bg-secondary);
}

.header__menu:hover,
.header__new:hover {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.header__title {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
  .header__menu {
    display: none;
  }
}

/* Chat Container */
.chat-container {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

/* ============================================
   Welcome Screen
   ============================================ */

.welcome {
  max-width: var(--max-content-width);
  margin: 0 auto;
  width: 100%;
  padding: var(--spacing-2xl) var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.welcome__title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.welcome__subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

/* Feature Cards */
.feature-cards {
  display: grid;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

@media (min-width: 480px) {
  .feature-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  display: flex;
  gap: var(--spacing-md);
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s;
}

.feature-card:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--text-muted);
}

.feature-card__icon {
  color: var(--accent);
  flex-shrink: 0;
}

.feature-card__title {
  font-size: var(--font-size-base);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.feature-card__desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Suggested Prompts */
.suggested-prompts {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.prompt-btn {
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  font-size: var(--font-size-base);
  transition: background-color 0.15s, border-color 0.15s;
}

.prompt-btn:hover {
  background-color: var(--bg-secondary);
  border-color: var(--text-muted);
}

/* ============================================
   Messages (LibreChat Style)
   ============================================ */

.messages {
  width: 100%;
  display: flex;
  flex-direction: column;
}

.message {
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  display: flex;
  gap: 12px;
  line-height: 1.7;
  max-width: 47rem;
  width: 100%;
  transition: background-color 0.15s;
}

.message:hover {
  background-color: rgba(255, 255, 255, 0.03);
}

/* Message avatar - subtle and clean */
.message__avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
  background-color: transparent;
  color: var(--text-secondary);
}

.message--user .message__avatar {
  background-color: var(--bg-tertiary);
}

.message--assistant .message__avatar {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

/* Message content */
.message__content {
  flex: 1;
  font-size: var(--font-size-base);
  color: var(--text-primary);
}

/* Image Message Styling */
.message__content--image {
  padding: var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.message__image {
  max-width: 300px;
  max-height: 300px;
  border-radius: var(--border-radius);
  object-fit: cover;
}

.message__image-name {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
}

/* Markdown Styling */
.message__content strong {
  font-weight: 600;
}

.message__content em {
  font-style: italic;
}

.message__content code {
  background-color: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  font-size: 0.9em;
}

.message__content ul,
.message__content ol {
  margin: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
}

.message__content li {
  margin-bottom: var(--spacing-xs);
}

.message__content ul li::marker {
  color: var(--accent);
}

.message__actions {
  margin-top: var(--spacing-sm);
  display: flex;
  gap: 8px;
  opacity: 0;
  transition: opacity 0.15s ease-in-out;
}

.message--assistant:hover .message__actions,
.message__actions:focus-within {
  opacity: 1;
}

.message__action-btn {
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1;
  padding: 6px 10px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background-color 0.15s;
}

.message__action-btn:hover:not(:disabled) {
  border-color: var(--text-muted);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
}

.message__action-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.message__action-btn--icon {
  width: 30px;
  height: 30px;
  min-width: 30px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.message__action-btn--icon svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ============================================
   Thinking Panel (Gemini-style)
   ============================================ */

.thinking-panel {
  margin-bottom: var(--spacing-md);
}

.thinking-panel__toggle {
  display: flex;
  align-items: center;
  background: transparent;
  border: none;
  padding: var(--spacing-xs) 0;
  cursor: pointer;
  width: auto;
  transition: opacity 0.15s;
  gap: 6px;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.thinking-panel__toggle:hover {
  opacity: 0.8;
}

.thinking-panel__header {
  display: flex;
  align-items: center;
  gap: 6px;
}

.thinking-panel__spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-color);
  border-top-color: var(--text-secondary);
  border-radius: 50%;
  animation: thinking-spin 0.8s linear infinite;
}

@keyframes thinking-spin {
  to {
    transform: rotate(360deg);
  }
}

.thinking-panel__label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 400;
}

.thinking-panel__chevron {
  color: var(--text-secondary);
  transition: transform 0.3s ease-out;
  width: 14px;
  height: 14px;
}

.thinking-panel__toggle[aria-expanded="true"] .thinking-panel__chevron {
  transform: rotate(180deg);
}

.thinking-panel__content {
  display: block;
  margin-top: var(--spacing-sm);
}

.thinking-panel__content[hidden] {
  display: none;
}

.thinking-panel__steps {
  list-style: none;
  padding: var(--spacing-md);
  margin: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.thinking-panel__step {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  animation: step-fade-in 0.3s ease-out;
}

@keyframes step-fade-in {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.thinking-panel__step-icon {
  flex-shrink: 0;
  width: 16px;
  text-align: center;
}

.thinking-panel__step-text {
  flex: 1;
  line-height: 1.4;
}

/* Completed state - hide spinner, show done checkmark */
.thinking-panel--done .thinking-panel__spinner {
  display: none;
}

.thinking-panel--done .thinking-panel__label::before {
  content: "✓ ";
  color: var(--accent);
}

.rate-limit-notice {
  position: fixed;
  right: 24px;
  bottom: 92px;
  z-index: 1200;
  max-width: min(420px, calc(100vw - 32px));
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 0.88rem;
  line-height: 1.35;
  border: 1px solid var(--border-color);
  background: rgba(22, 24, 29, 0.96);
  color: var(--text-primary);
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.32);
}

.rate-limit-notice--warning {
  border-color: rgba(240, 173, 78, 0.7);
  color: #ffe2a7;
}

.rate-limit-notice--error {
  border-color: rgba(217, 83, 79, 0.75);
  color: #ffc6c4;
}


/* ============================================
   Input Bar
   ============================================ */

.input-bar {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  margin: var(--spacing-md) auto;
  max-width: var(--max-content-width);
  width: calc(100% - var(--spacing-lg) * 2);
  min-height: 52px;
  transition: border-color 0.15s;
}

.input-bar:focus-within {
  border-color: var(--text-muted);
}

.input-bar__attach {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  transition: color 0.15s, background-color 0.15s;
}

.input-bar__attach:hover {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
}

.input-bar__attach-wrap {
  position: relative;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.input-bar__attach-menu {
  position: fixed;
  left: 0;
  bottom: 0;
  z-index: 280;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 196px;
  max-width: min(240px, calc(100vw - 24px));
  padding: 8px;
  border: 1px solid rgba(196, 149, 106, 0.22);
  border-radius: 16px;
  background: rgba(28, 25, 23, 0.96);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transform-origin: left bottom;
}

.input-bar__attach-menu[hidden] {
  display: none !important;
}

.input-bar__attach-opt {
  appearance: none;
  -webkit-appearance: none;
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  font: inherit;
  font-size: 0.92rem;
  line-height: 1.2;
  padding: 11px 12px;
  text-align: left;
  transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
}

.input-bar__attach-opt svg {
  flex-shrink: 0;
  color: var(--accent);
}

.input-bar__attach-opt:hover,
.input-bar__attach-opt:focus-visible {
  background: rgba(196, 149, 106, 0.1);
  border-color: rgba(196, 149, 106, 0.16);
  color: var(--text-primary);
  outline: none;
}

.input-bar__input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-family: inherit;
  resize: none;
  outline: none;
  min-height: 24px;
  max-height: 150px;
  line-height: 1.5;
  padding: var(--spacing-xs) 0;
}

.input-bar__input::placeholder {
  color: var(--text-muted);
}

.input-bar__controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  flex-shrink: 0;
}

.input-bar__mode-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background-color: var(--bg-tertiary);
  border: none;
  border-radius: var(--border-radius-sm);
  padding: 6px 12px;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s;
}

.input-bar__mode-toggle:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.input-bar__mode-toggle.detailed {
  color: var(--accent);
}

.input-bar__mode-toggle.detailed svg {
  color: var(--accent);
}

.input-bar__mode-text {
  font-weight: 500;
}

.input-bar__send {
  background-color: var(--text-muted);
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--bg-primary);
  transition: background-color 0.15s, transform 0.15s;
}

.input-bar__send:not(:disabled) {
  background-color: var(--text-primary);
}

.input-bar__send:not(:disabled):hover {
  background-color: var(--accent);
  transform: scale(1.05);
}

.input-bar__send:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  row-gap: 6px;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.footer__link {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.footer__link:hover {
  color: var(--text-secondary);
}

.footer__separator {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* Image Message Styling */
.message__image-container {
  margin-bottom: var(--spacing-sm);
  max-width: 100%;
}

.message__image {
  max-width: 100%;
  max-height: 300px;
  border-radius: var(--border-radius);
  display: block;
  cursor: pointer;
  transition: opacity 0.2s;
}

.message__image:hover {
  opacity: 0.9;
}

/* Image Preview & Caption Area */
.image-preview {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  margin: 0 auto var(--spacing-md);
  max-width: var(--max-content-width);
  width: calc(100% - var(--spacing-lg) * 2);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.image-preview__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-tertiary);
}

.image-preview__title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.image-preview__close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
}

.image-preview__close:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

/* Image Preview Options */
.image-preview__options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.toggle-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.toggle-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-right: var(--spacing-xs);
}

.toggle-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 4px 10px;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.toggle-btn:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
}

.toggle-btn--active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-primary);
}

.toggle-btn--active:hover {
  background: var(--accent-hover);
}

.image-preview__content {
  display: flex;
  padding: var(--spacing-md);
  gap: var(--spacing-md);
}

.image-preview__content img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
}

.image-preview__input {
  flex: 1;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-family: inherit;
  resize: none;
  height: 80px;
  outline: none;
}

.image-preview__input:focus {
  border-color: var(--accent);
}

/* ============================================
   Utilities
   ============================================ */

[hidden] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--text-muted);
}

/* ============================================
   Sidebar Auth Button
   ============================================ */

.sidebar__auth-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
  white-space: nowrap;
}

.sidebar__auth-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
}

/* Account Menu Wrapper */
.account-menu-wrapper {
  position: relative;
  flex: 1;
  min-width: 0;
  z-index: 220;
}

.sidebar__footer-actions {
  display: block;
}

/* ============================================
   Account Dropdown Menu (ChatGPT-style)
   ============================================ */

.account-menu {
  position: absolute;
  bottom: calc(100% + var(--spacing-sm));
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  z-index: 260;
  animation: menuSlideUp 0.15s ease;
}

@keyframes menuSlideUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.account-menu__header {
  padding: var(--spacing-sm) var(--spacing-md);
}

.account-menu__email {
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  word-break: break-all;
}

.account-menu__divider {
  height: 1px;
  background: var(--border-color);
  margin: var(--spacing-xs) 0;
}

.account-menu__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: none;
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  text-align: left;
  cursor: pointer;
  transition: background 0.15s ease;
}

.account-menu__item:hover {
  background: var(--bg-hover);
}

.account-menu__item svg {
  flex-shrink: 0;
  color: var(--text-secondary);
}

.account-menu__item--danger {
  color: #ef4444;
}

.account-menu__item--danger svg {
  color: #ef4444;
}

.account-menu__item--danger:hover {
  background: rgba(239, 68, 68, 0.1);
}

/* ============================================
   Consent Banner
   ============================================ */

.consent-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-md) var(--spacing-lg);
  z-index: 1000;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }

  to {
    transform: translateY(0);
  }
}

.consent-banner__content {
  max-width: var(--max-content-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.consent-banner__content p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin: 0;
}

.consent-banner__content a {
  color: var(--accent);
  text-decoration: none;
}

.consent-banner__content a:hover {
  text-decoration: underline;
}

.consent-banner__actions {
  display: flex;
  gap: var(--spacing-sm);
}

.consent-banner__btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.consent-banner__btn--accept {
  background: var(--accent);
  color: white;
  border: none;
}

.consent-banner__btn--accept:hover {
  background: var(--accent-hover);
}

.consent-banner__btn--decline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.consent-banner__btn--decline:hover {
  background: var(--bg-hover);
}

/* ============================================
   Auth Modal
   ============================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  animation: fadeIn 0.2s ease;
}

.modal__content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  width: 100%;
  max-width: 400px;
  max-height: 85vh;
  overflow-y: auto;
  margin: var(--spacing-md);
  position: relative;
  animation: scaleIn 0.2s ease;
}

.auth-modal {
  width: min(420px, calc(100vw - 20px));
  max-width: min(420px, calc(100vw - 20px));
  max-height: min(92vh, 720px);
  overflow-y: auto;
  margin: 10px;
}

@keyframes scaleIn {
  from {
    transform: scale(0.95);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

.modal__close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-xs);
}

.modal__close:hover {
  color: var(--text-primary);
}

.modal__header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.modal__title {
  color: var(--text-primary);
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin: 0 0 var(--spacing-xs);
}

.modal__subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin: 0;
}

.modal__body {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.modal__footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  margin-top: var(--spacing-lg);
  margin-bottom: 0;
}

.modal__footer a {
  color: var(--accent);
  text-decoration: none;
}

/* Auth Buttons */
.auth-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
}

.auth-btn--apple {
  background: white;
  color: black;
  border: none;
}

.auth-btn--apple:hover {
  background: #f0f0f0;
}

.auth-btn--google {
  background: white;
  color: #333;
  border: none;
}

.auth-btn--google:hover {
  background: #f0f0f0;
}

.auth-divider {
  display: flex;
  align-items: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

.auth-divider span {
  padding: 0 var(--spacing-md);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.auth-input {
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-base);
}

.auth-input:focus {
  outline: none;
  border-color: var(--accent);
}

.auth-input::placeholder {
  color: var(--text-muted);
}

.auth-submit {
  padding: var(--spacing-md);
  background: var(--accent);
  border: none;
  border-radius: var(--border-radius-sm);
  color: white;
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease;
}

.auth-submit:hover {
  background: var(--accent-hover);
}

.auth-toggle {
  text-align: center;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin: 0;
}

.auth-toggle-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.auth-toggle-btn:hover {
  text-decoration: underline;
}

/* ============================================
   Personalization Modal (Claude/ChatGPT Style)
   ============================================ */

.modal__content--wide {
  max-width: 520px;
  max-height: 80vh;
  overflow-y: auto;
  padding: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
}

.modal__content--wide .modal__close {
  top: var(--spacing-lg);
  right: var(--spacing-lg);
}

/* Modal Header */
.modal__content--wide .modal__title {
  padding: var(--spacing-lg) var(--spacing-xl) 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.modal__content--wide .modal__subtitle {
  padding: var(--spacing-xs) var(--spacing-xl) var(--spacing-md);
  margin: 0;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.personalization-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Settings Sections */
.form-section {
  background: transparent;
  border-radius: 0;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--border-color);
}

.form-section:last-of-type {
  border-bottom: none;
}

.form-section__title {
  margin: 0 0 var(--spacing-md);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: none;
  letter-spacing: normal;
}

/* Form Grid */
.form-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

/* Form Groups */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 10px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 70px;
}

/* Equipment Chips Grid */
.checkbox-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.form-hint {
  margin: 0 0 var(--spacing-sm);
  color: var(--text-secondary);
  font-size: 0.8125rem;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 0.8125rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.checkbox-item:hover {
  border-color: var(--accent);
}

.checkbox-item:has(input:checked) {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.checkbox-item input[type="checkbox"] {
  display: none;
}

.training-activity-shell {
  margin-top: var(--spacing-sm);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-secondary);
  padding: var(--spacing-sm);
}

.training-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.training-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.8125rem;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.training-tab:hover {
  border-color: var(--accent);
}

.training-tab.is-active {
  background: var(--bg-hover);
  border-color: var(--accent);
}

.training-tab__close {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1;
}

.training-panels {
  margin-top: var(--spacing-sm);
}

.training-panels__empty {
  margin: 0;
  padding: 10px 12px;
  border: 1px dashed var(--border-color);
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 0.8125rem;
}

.training-panel {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-primary);
  padding: 12px;
}

.training-panel__title {
  margin: 0 0 10px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Form Actions */
.form-actions {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
  padding: var(--spacing-md) var(--spacing-xl) var(--spacing-lg);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn--primary {
  background: var(--accent);
  color: white;
  border: none;
}

.btn--primary:hover {
  background: var(--accent-hover);
}

.btn--secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn--secondary:hover {
  background: var(--bg-hover);
}

/* Responsive */
@media (max-width: 480px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-row .form-group {
    min-width: 0;
  }

  .checkbox-grid {
    grid-template-columns: 1fr;
  }

  .training-tab {
    width: 100%;
    justify-content: space-between;
  }

  .form-actions {
    flex-direction: column;
  }

  /* Mobile message styles */
  .message {
    padding: var(--spacing-md) var(--spacing-sm);
    gap: 10px;
    max-width: 100%;
  }

  .message__avatar {
    width: 22px;
    height: 22px;
    font-size: 12px;
  }

  .message__content {
    font-size: var(--font-size-sm);
  }

  .message__actions {
    opacity: 1;
    flex-wrap: wrap;
  }

  .message__image {
    max-width: 100%;
    max-height: 250px;
  }

  /* Thinking panel adjustments for mobile */
  .thinking-panel {
    font-size: var(--font-size-sm);
    padding: 0 var(--spacing-sm);
    max-width: 100%;
  }

  .thinking-panel__step {
    padding: var(--spacing-xs) 0;
  }

  .thinking-panel__steps {
    padding: var(--spacing-sm);
  }

  .rate-limit-notice {
    right: 12px;
    left: 12px;
    bottom: 86px;
    max-width: none;
  }

  /* Input bar adjustments for mobile */
  .input-bar {
    width: calc(100% - var(--spacing-sm) * 2);
    margin: var(--spacing-sm) auto;
    padding: var(--spacing-xs) var(--spacing-sm);
    gap: var(--spacing-xs);
  }

  .input-bar__attach {
    width: 32px;
    height: 32px;
  }

  .input-bar__attach-menu {
    min-width: min(216px, calc(100vw - 24px));
    max-width: calc(100vw - 24px);
  }

  .input-bar__attach-opt {
    font-size: 0.9rem;
    padding: 12px;
  }

  .input-bar__mode-toggle {
    padding: 4px 8px;
    font-size: 12px;
  }

  .input-bar__mode-text {
    display: none; /* Hide "Detailed" text on mobile */
  }

  .input-bar__send {
    width: 28px;
    height: 28px;
  }
}

/* Tablet and medium screens */
@media (min-width: 481px) and (max-width: 768px) {
  .message {
    padding: var(--spacing-md) var(--spacing-sm);
    max-width: 100%;
  }

  .message__avatar {
    width: 24px;
    height: 24px;
  }

  .message__image {
    max-width: 100%;
  }

  .thinking-panel {
    max-width: 100%;
  }

  .message__actions {
    opacity: 1;
  }
}

/* ============================================
   Settings Modal
   ============================================ */
.settings-modal {
  max-width: 560px;
  max-height: min(82vh, 760px);
  overflow-y: auto;
}

.settings-section {
  margin-bottom: var(--spacing-xl);
}

.settings-section__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.settings-section__desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.settings-section__note {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-top: var(--spacing-sm);
}

.settings-model-select-wrap {
  margin: var(--spacing-sm) 0;
}

.settings-model-select {
  width: 100%;
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  background: var(--bg-secondary, #1e1e1e);
  color: var(--text-primary, #e8e8e8);
  border: 1px solid var(--border-color, #333);
  border-radius: var(--radius-md, 6px);
  font-size: var(--font-size-sm);
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
}

.settings-model-select:focus {
  outline: 2px solid var(--accent-primary, #c4956a);
  outline-offset: 2px;
}

.settings-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.settings-info:last-child {
  border-bottom: none;
}

.settings-info__label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.settings-info__value {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  font-weight: 500;
}

.settings-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.settings-toggle:last-of-type {
  border-bottom: none;
}

.settings-toggle__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.settings-toggle__text strong {
  font-weight: 600;
}

.settings-toggle__text small {
  color: var(--text-muted);
  font-size: 0.78rem;
}

.settings-toggle__control {
  position: relative;
  width: 48px;
  height: 28px;
  flex-shrink: 0;
}

.settings-toggle__control input {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.settings-toggle__switch {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  transition: background 150ms ease, border-color 150ms ease;
}

.settings-toggle__switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: transform 150ms ease, background 150ms ease;
}

.settings-toggle__control input:checked + .settings-toggle__switch {
  background: rgba(196, 149, 106, 0.2);
  border-color: rgba(196, 149, 106, 0.6);
}

.settings-toggle__control input:checked + .settings-toggle__switch::after {
  transform: translateX(20px);
  background: var(--accent);
}

.settings-toggle__control input:focus-visible + .settings-toggle__switch {
  box-shadow: 0 0 0 2px rgba(196, 149, 106, 0.28);
}

.settings-toggle--disabled {
  opacity: 0.55;
}

.settings-toggle--disabled .settings-toggle__control input {
  cursor: not-allowed;
}

#exportDataBtn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

#exportDataBtn svg {
  flex-shrink: 0;
}

/* ============================================
   Daily Logs Modal
   ============================================ */
.logs-modal {
  max-width: 980px;
}

.logs-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(120deg, rgba(59, 130, 246, 0.12), rgba(16, 185, 129, 0.08));
}

.logs-controls label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.logs-controls input[type="date"] {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--border-radius-sm);
  padding: 8px 10px;
}

.logs-view {
  padding-bottom: var(--spacing-lg);
}

.logs-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
}

.logs-summary__item {
  background: linear-gradient(160deg, var(--bg-secondary), rgba(59, 130, 246, 0.08));
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logs-summary__label {
  font-size: 12px;
  color: var(--text-secondary);
}

.logs-summary__value {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.logs-meta {
  display: flex;
  gap: var(--spacing-lg);
  padding: 0 var(--spacing-xl) var(--spacing-sm);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.logs-meta strong {
  color: var(--text-primary);
}

.logs-suggestions {
  margin: 0 var(--spacing-xl) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-secondary);
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
}

.logs-suggestions__label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.logs-suggestions__text {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  margin-top: 4px;
}

.logs-note {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.logs-section__hint {
  margin: 0 0 var(--spacing-sm);
  font-size: 12px;
  color: var(--accent);
}

.logs-section {
  margin: 0 var(--spacing-xl) var(--spacing-md);
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: var(--bg-secondary);
}

.logs-section--overview {
  margin-bottom: var(--spacing-sm);
}

.logs-section__title {
  font-size: var(--font-size-base);
  font-weight: 700;
  margin: 0 0 var(--spacing-sm);
}

.logs-overview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-md);
  padding: 0 var(--spacing-xl);
}

.logs-overview-card {
  border: 1px solid var(--border-color);
  background: linear-gradient(160deg, var(--bg-secondary), rgba(16, 185, 129, 0.08));
  border-radius: 14px;
  padding: var(--spacing-md);
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.logs-overview-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.logs-overview-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.logs-overview-card__meta {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.logs-overview-card__action {
  margin-top: var(--spacing-xs);
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.logs-view-intro {
  margin: var(--spacing-md) var(--spacing-xl) var(--spacing-sm);
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(59, 130, 246, 0.16), rgba(16, 185, 129, 0.1));
}

.logs-view-intro__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.logs-view-intro__subtitle {
  margin-top: 2px;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.logs-table-wrap {
  overflow-x: auto;
}

.logs-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.logs-table th,
.logs-table td {
  border-bottom: 1px solid var(--border-color);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  font-size: var(--font-size-sm);
}

.logs-table th {
  color: var(--text-secondary);
  font-weight: 600;
  background: var(--bg-secondary);
}

.logs-table td {
  color: var(--text-primary);
}

.logs-table tr:last-child td {
  border-bottom: none;
}

.logs-empty {
  color: var(--text-muted);
}

.logs-action-btn {
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 12px;
  border-radius: var(--border-radius-sm);
  padding: 4px 8px;
  cursor: pointer;
}

.logs-action-btn:hover {
  border-color: var(--accent);
}

.logs-kcal-check {
  margin-top: 4px;
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.35;
}

.logs-inline-form {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.logs-inline-form select {
  min-width: 180px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 9px 10px;
  color: var(--text-primary);
}

.logs-food-form,
.logs-exercise-form {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--spacing-sm);
}

.logs-food-form input,
.logs-food-form select,
.logs-exercise-form input,
.logs-exercise-form select {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 9px 10px;
  color: var(--text-primary);
}

#logsFoodName {
  grid-column: span 4;
}

#logsFoodFiber {
  grid-column: span 2;
}

#logsFoodMealType {
  grid-column: span 2;
}

#logsFoodNotes {
  grid-column: span 4;
}

#saveFoodLogBtn {
  grid-column: span 2;
}

#cancelFoodEditBtn {
  grid-column: span 2;
}

#logsExerciseActivity {
  grid-column: span 3;
}

#logsExerciseNotes {
  grid-column: span 3;
}

#saveExerciseLogBtn {
  grid-column: span 2;
}

#cancelExerciseEditBtn {
  grid-column: span 2;
}

@media (max-width: 900px) {
  .logs-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .logs-overview-grid {
    grid-template-columns: 1fr;
  }

  .logs-meta {
    flex-direction: column;
    gap: 2px;
  }

  .logs-food-form,
  .logs-exercise-form {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  #logsFoodName,
  #logsFoodCaloriesInput,
  #logsFoodProtein,
  #logsFoodCarbs,
  #logsFoodFat,
  #logsFoodFiber,
  #logsFoodMealType,
  #logsFoodNotes,
  #saveFoodLogBtn,
  #cancelFoodEditBtn,
  #logsExerciseActivity,
  #logsExerciseDuration,
  #logsExerciseIntensity,
  #logsExerciseType,
  #logsExerciseCaloriesInput,
  #logsExerciseNotes,
  #saveExerciseLogBtn,
  #cancelExerciseEditBtn {
    grid-column: span 6;
  }
}

@media (max-width: 640px) {
  .logs-controls {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .logs-summary {
    grid-template-columns: 1fr;
  }

  .logs-section,
  .logs-view-intro {
    margin-left: var(--spacing-md);
    margin-right: var(--spacing-md);
  }

  .logs-overview-grid {
    padding: 0 var(--spacing-md);
  }
}

/* ============================================
   Enhanced Food Log UI Components
   ============================================ */

.food-log-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) 0;
}

/* Header Section */
.food-log-header {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.food-log-header__title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
}

.food-log-header__title h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.food-log-header__subtitle {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Date Navigation */
.food-log-date-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-md) var(--spacing-xl);
  border-bottom: 1px solid var(--border-color);
}

.food-log-date-nav__prev,
.food-log-date-nav__next {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
}

.food-log-date-nav__prev:hover,
.food-log-date-nav__next:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.food-log-date-nav__display {
  text-align: center;
  min-width: 200px;
}

.food-log-date-nav__label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.food-log-date-nav__date {
  display: block;
  font-size: var(--font-size-base);
  color: var(--text-primary);
  font-weight: 500;
}

/* Macro Summary */
.macro-summary {
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--bg-secondary);
}

/* Circular Progress */
.macro-circle {
  position: relative;
  width: 160px;
  height: 160px;
  margin: 0 auto var(--spacing-lg);
}

.macro-circle__svg {
  width: 100%;
  height: 100%;
}

.macro-circle__background {
  fill: none;
  stroke: var(--bg-tertiary);
  stroke-width: 8;
}

.macro-circle__progress {
  fill: none;
  stroke: #10a37f;
  stroke-width: 8;
  stroke-dasharray: 339.292;
  stroke-dashoffset: calc(339.292 * (1 - var(--percentage, 0)));
  stroke-linecap: round;
  transition: stroke-dashoffset 0.3s ease;
  transform: rotate(-90deg);
  transform-origin: 50% 50%;
}

.macro-circle__content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
}

.macro-circle__value {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.macro-circle__unit {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Macro Breakdown */
.macro-breakdown {
  padding: 0 var(--spacing-xl) var(--spacing-lg);
}

.macro-bar {
  margin-bottom: var(--spacing-md);
}

.macro-bar:last-child {
  margin-bottom: 0;
}

.macro-bar__label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.macro-bar__name {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

.macro-bar__value {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  font-weight: 600;
}

.macro-bar__max {
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 4px;
}

.macro-bar__track {
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.macro-bar__fill {
  height: 100%;
  width: var(--percentage);
  background: var(--color);
  border-radius: 4px;
  transition: width 0.3s ease;
}

/* Meal Sections */
.meal-sections {
  padding: 0 var(--spacing-xl) var(--spacing-lg);
}

.meal-section {
  margin-bottom: var(--spacing-lg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: var(--bg-secondary);
  overflow: hidden;
}

.meal-section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.meal-section__title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
}

.meal-section__emoji {
  font-size: 24px;
  flex-shrink: 0;
}

.meal-section__name {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

.meal-section__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.meal-section__calories {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

.meal-section__add-btn {
  background: #10a37f;
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: var(--border-radius-sm);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease;
  flex-shrink: 0;
}

.meal-section__add-btn:hover {
  background: #0a8c5e;
}

/* Food Items */
.meal-items {
  padding: var(--spacing-md);
}

.food-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-sm);
  transition: background 0.15s ease;
}

.food-item:last-child {
  margin-bottom: 0;
}

.food-item:hover {
  background: var(--bg-hover);
}

.food-item__emoji {
  font-size: 24px;
  flex-shrink: 0;
  line-height: 1.5;
}

.food-item__main {
  flex: 1;
  min-width: 0;
}

.food-item__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: 4px;
}

.food-item__name {
  font-size: var(--font-size-base);
  color: var(--text-primary);
  font-weight: 500;
  flex: 1;
  word-break: break-word;
}

.food-item__calories {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 600;
  flex-shrink: 0;
  white-space: nowrap;
}

.food-item__details {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: 8px;
}

.food-item__separator {
  margin: 0 4px;
}

.food-item__macros {
  display: flex;
  gap: var(--spacing-md);
  font-size: var(--font-size-sm);
  flex-wrap: wrap;
}

.food-item__macro {
  display: flex;
  gap: 2px;
  white-space: nowrap;
}

.food-item__macro-value {
  font-weight: 600;
}

.food-item__macro-label {
  color: var(--text-muted);
}

.food-item__macro--protein .food-item__macro-value {
  color: #3b82f6;
}

.food-item__macro--carbs .food-item__macro-value {
  color: #f59e0b;
}

.food-item__macro--fat .food-item__macro-value {
  color: #ef4444;
}

.food-item__macro--fiber .food-item__macro-value {
  color: #10b981;
}

.food-item__check {
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.35;
}

.food-item__image-link {
  margin-top: 6px;
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  text-decoration: none;
}

.food-item__image-link:hover {
  text-decoration: underline;
}

.food-item__edit {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-radius: var(--border-radius-sm);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 12px;
  flex-shrink: 0;
  transition: all 0.15s ease;
  align-self: center;
  white-space: nowrap;
}

.food-item__edit:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Empty State */
.food-log-empty {
  padding: var(--spacing-lg) var(--spacing-xl);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 480px) {
  .meal-section__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .meal-section__meta {
    width: 100%;
    justify-content: space-between;
  }

  .food-item {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .food-item__header {
    flex-direction: column;
    align-items: flex-start;
  }

  .macro-circle {
    width: 140px;
    height: 140px;
  }

  .macro-circle__value {
    font-size: 28px;
  }

  .macro-breakdown {
    padding: 0 var(--spacing-md) var(--spacing-md);
  }

  .food-log-date-nav {
    gap: var(--spacing-md);
  }

  .food-log-header {
    padding: var(--spacing-md) var(--spacing-md);
  }

  .meal-sections {
    padding: 0 var(--spacing-md) var(--spacing-md);
  }

  .macro-summary {
    padding: var(--spacing-md);
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .macro-circle {
    width: 150px;
    height: 150px;
  }

  .food-item__macros {
    flex-wrap: wrap;
  }
}

/* ============================================
   Coach Guide Widget
   ============================================ */
.coach-guide {
  position: fixed;
  left: calc(var(--sidebar-width) + 18px);
  bottom: 106px;
  z-index: 220;
  display: flex;
  align-items: center;
}

.coach-guide__fab,
.coach-guide__panel,
.coach-guide__panel * {
  pointer-events: auto;
}

.coach-guide__fab {
  border: 2px solid #555;
  background: linear-gradient(180deg, #1f1f1f, #131313);
  color: #f2f2f2;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 12px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.24);
}

.coach-guide__fab:hover {
  background: linear-gradient(180deg, #2a2a2a, #191919);
}

.coach-guide__fab-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5);
  animation: guide-pulse 1.8s infinite;
}

.coach-guide__panel {
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  width: min(320px, calc(100vw - 24px));
  background:
    repeating-linear-gradient(165deg, rgba(255, 255, 255, 0.03) 0, rgba(255, 255, 255, 0.03) 3px, transparent 3px, transparent 11px),
    linear-gradient(180deg, #1e1e1e, #121212);
  border: 2px solid #4f4f4f;
  border-radius: 12px;
  padding: 12px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.36);
}

.coach-guide__panel::after {
  content: '';
  position: absolute;
  left: 24px;
  bottom: -10px;
  width: 16px;
  height: 16px;
  background: #151515;
  border-right: 2px solid #4f4f4f;
  border-bottom: 2px solid #4f4f4f;
  transform: rotate(45deg);
}

.coach-guide__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.coach-guide__eyebrow {
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #bfbfbf;
  font-weight: 700;
}

.coach-guide__close {
  border: none;
  background: transparent;
  color: #9d9d9d;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 4px;
}

.coach-guide__close:hover {
  color: #ffffff;
}

.coach-guide__title {
  font-size: 16px;
  margin-bottom: 4px;
}

.coach-guide__text {
  font-size: 13px;
  color: #c5c5c5;
  margin-bottom: 10px;
}

.coach-guide__intro-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.coach-guide__input {
  width: 100%;
  border: 1px solid #474747;
  background: #0f0f0f;
  color: var(--text-primary);
  border-radius: 10px;
  font-size: 13px;
  padding: 9px 10px;
  margin-bottom: 10px;
}

.coach-guide__input:focus {
  outline: none;
  border-color: var(--accent);
}

.coach-guide__steps[hidden],
.coach-guide__intro[hidden] {
  display: none;
}

.coach-guide__progress {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}

.coach-guide__dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #4a4a4a;
}

.coach-guide__dot--active {
  width: 14px;
  background: #e5e5e5;
}

.coach-guide__actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.coach-guide__btn {
  border-radius: 10px;
  border: 1px solid #4f4f4f;
  background: rgba(0, 0, 0, 0.2);
  color: #c9c9c9;
  font-size: 12px;
  font-weight: 600;
  padding: 8px 6px;
  cursor: pointer;
}

.coach-guide__btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.coach-guide__btn--action {
  color: #f4f4f4;
}

.coach-guide__btn--primary {
  background: #f4f4f4;
  color: #111;
  border-color: #f4f4f4;
}

.coach-guide__btn--primary:hover {
  background: #ffffff;
}

.coach-guide__btn--ghost:hover,
.coach-guide__btn--action:hover {
  background: #232323;
  color: #ffffff;
}

.guide-highlight {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  animation: guide-highlight-blink 1.1s ease;
}

@keyframes guide-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(34, 197, 94, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
  }
}

@keyframes guide-highlight-blink {
  0% {
    outline-color: rgba(59, 130, 246, 0);
  }
  40% {
    outline-color: rgba(59, 130, 246, 1);
  }
  100% {
    outline-color: rgba(59, 130, 246, 0);
  }
}

@media (max-width: 768px) {
  .sidebar__footer-actions {
    display: block;
  }

  .account-menu-wrapper {
    min-width: 0;
  }

  .coach-guide {
    left: 10px;
    bottom: 104px;
  }

  .coach-guide__fab {
    font-size: 12px;
    padding: 7px 9px;
    letter-spacing: 0;
    text-transform: none;
    max-width: 148px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .coach-guide__panel {
    left: -2px;
    width: min(300px, calc(100vw - 20px));
  }

  .coach-guide__panel::after {
    left: 20px;
  }

  .coach-guide__intro-actions {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .coach-guide__fab {
    padding: 6px 8px;
    font-size: 11px;
  }

  .coach-guide__panel {
    left: -4px;
    width: min(286px, calc(100vw - 16px));
  }
}

/* ============================================
   2026 UI Refresh - Industrial Control Theme
   ============================================ */
:root {
  --bg-primary: #0b0f13;
  --bg-secondary: #141b24;
  --bg-tertiary: #1a2330;
  --bg-sidebar: #090d13;
  --bg-hover: #223243;
  --bg-message-user: #1f2936;
  --bg-message-assistant: #141b24;

  --text-primary: #f5f8fc;
  --text-secondary: #b4c0ce;
  --text-muted: #8290a0;

  --accent: #7ff75b;
  --accent-hover: #a2ff83;
  --border-color: #2a3646;
  --danger: #ff7878;

  --border-radius: 14px;
  --border-radius-sm: 10px;
  --border-radius-lg: 20px;

  --font-family: "IBM Plex Sans", "Segoe UI", "Helvetica Neue", sans-serif;
  --font-family-display: "Chakra Petch", "Segoe UI", sans-serif;
  --font-family-mono: "IBM Plex Mono", "SFMono-Regular", Monaco, monospace;

  --font-size-sm: 0.8125rem;
  --font-size-base: 0.9375rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: clamp(2rem, 4vw, 3.25rem);

  --sidebar-width: 288px;
  --header-height: 58px;
  --max-content-width: 920px;
}

[data-theme="light"] {
  --bg-primary: #f2efe8;
  --bg-secondary: #faf7f0;
  --bg-tertiary: #e8e1d5;
  --bg-sidebar: #e8e2d9;
  --bg-hover: #e1d8ca;
  --bg-message-user: #e2dbcf;
  --bg-message-assistant: #f5f2eb;

  --text-primary: #141a21;
  --text-secondary: #3e4c5c;
  --text-muted: #6e7d8d;
  --accent: #2b8f1f;
  --accent-hover: #1f7a15;
  --border-color: #c9bfaf;
}

[data-theme="light"] body {
  background:
    radial-gradient(120% 90% at 90% -12%, rgba(43, 143, 31, 0.11) 0, rgba(43, 143, 31, 0) 52%),
    radial-gradient(130% 100% at 0 0, rgba(107, 126, 145, 0.16) 0, rgba(107, 126, 145, 0) 48%),
    var(--bg-primary);
}

[data-theme="light"] body::before {
  background:
    linear-gradient(rgba(20, 26, 33, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 26, 33, 0.045) 1px, transparent 1px);
}

[data-theme="light"] body::after {
  background: linear-gradient(180deg, rgba(242, 239, 232, 0), rgba(242, 239, 232, 0.46));
}

[data-theme="light"] .sidebar__auth-btn {
  border-color: #4a963c;
  background: linear-gradient(180deg, rgba(43, 143, 31, 0.19), rgba(43, 143, 31, 0.09));
}

[data-theme="light"] .sidebar__auth-btn:hover {
  background: linear-gradient(180deg, rgba(43, 143, 31, 0.26), rgba(43, 143, 31, 0.15));
}

[data-theme="light"] .sidebar__footer {
  background: rgba(255, 255, 255, 0.35);
}

[data-theme="light"] .header {
  background: rgba(242, 239, 232, 0.9);
}

[data-theme="light"] .chat-history-item--active {
  border-color: #3e9d31;
  background: linear-gradient(90deg, rgba(43, 143, 31, 0.12), transparent 65%);
}

[data-theme="light"] .feature-card__icon {
  border-color: #4ba03e;
  background: rgba(43, 143, 31, 0.14);
}

[data-theme="light"] .prompt-btn:hover {
  background: rgba(43, 143, 31, 0.14);
}

[data-theme="light"] .message {
  border-bottom: 1px solid rgba(201, 191, 175, 0.75);
}

[data-theme="light"] .message:hover {
  background: rgba(232, 225, 213, 0.52);
}

[data-theme="light"] .message--assistant .message__avatar {
  border-color: #4b9f3d;
  background: rgba(43, 143, 31, 0.2);
}

[data-theme="light"] .input-bar {
  box-shadow: 0 18px 34px rgba(69, 61, 48, 0.16);
}

[data-theme="light"] .input-bar__mode-toggle {
  background: rgba(232, 225, 213, 0.86);
}

[data-theme="light"] .input-bar:focus-within {
  border-color: #459f39;
}

[data-theme="light"] .input-bar__mode-toggle.detailed {
  border-color: #4b9f3d;
}

[data-theme="light"] .footer {
  border-top: 1px solid rgba(201, 191, 175, 0.85);
}

[data-theme="light"] .auth-submit,
[data-theme="light"] .btn--primary {
  color: #f6fff4;
}

[data-theme="light"] .coach-guide__fab {
  border-color: #4a963c;
  background: linear-gradient(180deg, rgba(43, 143, 31, 0.24), rgba(43, 143, 31, 0.1));
}

body {
  font-family: var(--font-family);
  background:
    radial-gradient(140% 120% at 85% -10%, rgba(127, 247, 91, 0.08) 0, rgba(127, 247, 91, 0) 50%),
    radial-gradient(120% 90% at 0 0, rgba(84, 139, 194, 0.18) 0, rgba(84, 139, 194, 0) 46%),
    var(--bg-primary);
  color: var(--text-primary);
  letter-spacing: 0.01em;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

body::before {
  background:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
}

body::after {
  background: linear-gradient(180deg, rgba(11, 15, 19, 0.15), rgba(11, 15, 19, 0.5));
}

main,
.chat-container,
.messages {
  position: relative;
}

:where(button, a, input, select, textarea):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.sidebar {
  width: var(--sidebar-width);
  background:
    linear-gradient(180deg, rgba(127, 247, 91, 0.06), rgba(127, 247, 91, 0) 22%),
    var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  box-shadow: 12px 0 32px rgba(0, 0, 0, 0.35);
}

.sidebar__header {
  padding: 18px var(--spacing-md) 14px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar__title {
  font-family: var(--font-family-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sidebar__title::before {
  content: "■";
  color: var(--accent);
  margin-right: 8px;
  font-size: 0.88rem;
  vertical-align: 1px;
}

.sidebar__new-chat,
.sidebar__close {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0));
}

.sidebar__new-chat:hover,
.sidebar__close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar__chats {
  padding: 10px;
}

.sidebar__empty {
  color: var(--text-muted);
  line-height: 1.55;
  border: 1px dashed var(--border-color);
  border-radius: var(--border-radius-sm);
  background: rgba(255, 255, 255, 0.02);
}

.chat-history-item {
  border: 1px solid transparent;
  border-radius: var(--border-radius-sm);
  margin-bottom: 8px;
  min-height: 44px;
}

.chat-history-item:hover {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

.chat-history-item--active {
  border-color: #63cf4e;
  background: linear-gradient(90deg, rgba(127, 247, 91, 0.14), transparent 65%);
}

.chat-history-item__title {
  font-size: 0.84rem;
}

.sidebar__footer {
  border-top: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.14);
}

.sidebar__toggle-theme,
.sidebar__auth-btn {
  min-height: 44px;
  border-radius: var(--border-radius-sm);
  font-weight: 500;
}

.sidebar__toggle-theme {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

.sidebar__toggle-theme:hover {
  border-color: var(--accent);
}

.sidebar__auth-btn {
  background: linear-gradient(180deg, rgba(127, 247, 91, 0.2), rgba(127, 247, 91, 0.11));
  border: 1px solid #67cd52;
  color: var(--text-primary);
}

.sidebar__auth-btn:hover {
  background: linear-gradient(180deg, rgba(127, 247, 91, 0.34), rgba(127, 247, 91, 0.2));
}

.main {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0));
}

.header {
  height: var(--header-height);
  border-bottom: 1px solid var(--border-color);
  background: rgba(11, 15, 19, 0.9);
  backdrop-filter: blur(7px);
  position: sticky;
  top: 0;
  z-index: 80;
}

.header__menu,
.header__new {
  border: 1px solid transparent;
  color: var(--text-secondary);
}

.header__menu:hover,
.header__new:hover {
  color: var(--text-primary);
  border-color: var(--border-color);
  background: var(--bg-secondary);
}

.header__title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-lg);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.header-quick-menu {
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  box-shadow: 0 24px 40px rgba(0, 0, 0, 0.34);
}

.header-quick-menu__item {
  min-height: 40px;
}

.header-quick-menu__item:hover {
  background: var(--bg-hover);
}

.chat-container {
  background:
    radial-gradient(90% 70% at 100% 0, rgba(127, 247, 91, 0.06), rgba(127, 247, 91, 0)),
    linear-gradient(180deg, rgba(13, 17, 22, 0), rgba(13, 17, 22, 0.55) 72%);
}

.welcome {
  max-width: 980px;
  padding: 52px 24px 36px;
  gap: 0;
  position: relative;
}

.welcome__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin-bottom: 16px;
  font-family: var(--font-family-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
}

.welcome__eyebrow::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(127, 247, 91, 0.45);
  animation: console-pulse 2s ease infinite;
}

.welcome__title {
  margin: 0;
  max-width: 14ch;
  font-family: var(--font-family-display);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: 0.02em;
  text-align: left;
  text-wrap: balance;
}

.welcome__subtitle {
  margin: 16px 0 0;
  max-width: 60ch;
  color: var(--text-secondary);
  font-size: 1rem;
  text-align: left;
}

.welcome__status-grid {
  margin-top: 24px;
  margin-bottom: 30px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.welcome__status-item {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 10px 12px;
  background:
    linear-gradient(180deg, rgba(127, 247, 91, 0.1), rgba(127, 247, 91, 0)),
    var(--bg-secondary);
}

.welcome__status-label {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-family-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-muted);
}

.welcome__status-value {
  font-size: 0.95rem;
  line-height: 1.2;
  font-weight: 600;
}

.feature-cards {
  margin-bottom: 26px;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-card {
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 16px;
  background:
    linear-gradient(165deg, rgba(127, 247, 91, 0.08), rgba(127, 247, 91, 0)),
    var(--bg-secondary);
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  background-color: var(--bg-tertiary);
}

.feature-card__icon {
  color: var(--accent);
  background: rgba(127, 247, 91, 0.12);
  border: 1px solid #5aba4a;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: grid;
  place-items: center;
}

.feature-card__title {
  font-family: var(--font-family-display);
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

.feature-card__desc {
  line-height: 1.5;
}

.suggested-prompts__label {
  margin-bottom: 10px;
  font-family: var(--font-family-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  color: var(--text-muted);
}

.suggested-prompts {
  counter-reset: prompt;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.prompt-btn {
  min-height: 56px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.93rem;
  line-height: 1.4;
  padding: 12px 14px 12px 48px;
  position: relative;
}

.prompt-btn::before {
  counter-increment: prompt;
  content: counter(prompt, decimal-leading-zero);
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-family-mono);
  font-size: 0.75rem;
  color: var(--accent);
}

.prompt-btn:hover {
  border-color: var(--accent);
  background: rgba(127, 247, 91, 0.14);
}

.messages {
  padding: 8px 0 44px;
}

.message {
  max-width: min(920px, calc(100% - 24px));
  border-bottom: 1px solid rgba(42, 54, 70, 0.8);
  padding: 20px 16px;
}

.message:hover {
  background: rgba(20, 27, 36, 0.58);
}

.message__avatar {
  width: 28px;
  height: 28px;
  font-family: var(--font-family-mono);
  border: 1px solid var(--border-color);
}

.message--user .message__avatar {
  background: var(--bg-tertiary);
}

.message--assistant .message__avatar {
  background: rgba(127, 247, 91, 0.24);
  color: var(--accent);
  border-color: #66d854;
}

.message__content code {
  font-family: var(--font-family-mono);
  font-size: 0.9em;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

.thinking-panel__steps {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
}

.input-bar__send {
  color: var(--bg-primary);
}

.footer {
  min-height: 34px;
  border-top: 1px solid rgba(42, 54, 70, 0.76);
}

.footer__link {
  font-family: var(--font-family-mono);
  font-size: 0.73rem;
  letter-spacing: 0.03em;
}

.image-preview {
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: var(--bg-secondary);
}

.toggle-btn {
  min-height: 34px;
}

.account-menu {
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: var(--bg-secondary);
}

.account-menu__item {
  min-height: 38px;
}

.account-menu__item--danger {
  color: var(--danger);
}

.modal,
.modal-overlay {
  backdrop-filter: blur(2px);
}

.modal__content,
.modal__content--wide {
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.auth-input,
.form-group input,
.form-group select,
.form-group textarea {
  min-height: 42px;
}

.auth-submit,
.btn--primary {
  background: var(--accent);
  color: #101510;
}

.auth-submit:hover,
.btn--primary:hover {
  background: var(--accent-hover);
}

.btn--secondary {
  border-color: var(--border-color);
}

.coach-guide__fab {
  border-color: #5ca84f;
  background: linear-gradient(180deg, rgba(127, 247, 91, 0.2), rgba(127, 247, 91, 0.08));
}

.coach-guide__panel {
  border-color: var(--border-color);
  background:
    repeating-linear-gradient(165deg, rgba(255, 255, 255, 0.03) 0, rgba(255, 255, 255, 0.03) 2px, transparent 2px, transparent 9px),
    var(--bg-secondary);
}

.coach-guide__panel::after {
  background: var(--bg-secondary);
  border-right-color: var(--border-color);
  border-bottom-color: var(--border-color);
}

.welcome__eyebrow,
.welcome__title,
.welcome__subtitle,
.welcome__status-grid,
.feature-card,
.suggested-prompts__label,
.prompt-btn {
  opacity: 0;
  transform: translateY(10px);
  animation: intro-rise 0.6s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.welcome__eyebrow {
  animation-delay: 0.02s;
}

.welcome__title {
  animation-delay: 0.09s;
}

.welcome__subtitle {
  animation-delay: 0.17s;
}

.welcome__status-grid {
  animation-delay: 0.24s;
}

.feature-card:nth-child(1) {
  animation-delay: 0.32s;
}

.feature-card:nth-child(2) {
  animation-delay: 0.4s;
}

.suggested-prompts__label {
  animation-delay: 0.48s;
}

.prompt-btn:nth-child(1) {
  animation-delay: 0.54s;
}

.prompt-btn:nth-child(2) {
  animation-delay: 0.59s;
}

.prompt-btn:nth-child(3) {
  animation-delay: 0.64s;
}

.prompt-btn:nth-child(4) {
  animation-delay: 0.69s;
}

@keyframes intro-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes console-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(127, 247, 91, 0.45);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(127, 247, 91, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(127, 247, 91, 0);
  }
}

@media (max-width: 900px) {
  .welcome {
    padding: 36px 16px 24px;
  }

  .welcome__title {
    max-width: none;
  }

  .welcome__status-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .feature-cards,
  .suggested-prompts {
    grid-template-columns: 1fr;
  }

  .message {
    max-width: 100%;
    padding: 16px 10px;
  }
}

@media (max-width: 768px) {
  .header {
    position: relative;
  }

  .header__title {
    font-size: 1rem;
  }

  .input-bar {
    width: calc(100% - 16px);
    margin-bottom: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── Prefetch Toast (login-time data sync indicator) ─────────────────────── */
.prefetch-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: #1e1e1e;
  border: 1px solid #333;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  color: #ccc;
  font-size: 13px;
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.prefetch-toast--fade {
  opacity: 0;
  transform: translateY(6px);
}

.prefetch-toast--done {
  border-color: #c4956a44;
  color: #c4956a;
}

.prefetch-toast__spinner {
  width: 14px;
  height: 14px;
  border: 2px solid #444;
  border-top-color: #c4956a;
  border-radius: 50%;
  flex-shrink: 0;
  animation: prefetch-spin 0.7s linear infinite;
}

.prefetch-toast__icon--done {
  font-size: 13px;
  line-height: 1;
}

@keyframes prefetch-spin {
  to { transform: rotate(360deg); }
}

/* ── Barcode Scanner ─────────────────────────────────────────────────────── */

.logs-food-inputs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.logs-food-inputs .btn {
  flex: 1;
  font-size: 0.82rem;
  padding: 8px 10px;
}

/* Scanner modal overlay */
#barcodeScannerModal { position: fixed; inset: 0; z-index: 9000; }
#barcodeScannerModal[hidden] { display: none; }

.bcs-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.bcs-card {
  background: var(--bg-secondary, #1a1a1a);
  border: 1px solid var(--border-color, #333);
  border-radius: 16px;
  width: 100%;
  max-width: 420px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.bcs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color, #333);
}

.bcs-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary, #fff);
}

.bcs-close {
  background: none;
  border: none;
  color: var(--text-secondary, #888);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  line-height: 1;
}
.bcs-close:hover { background: var(--bg-hover, #333); color: var(--text-primary, #fff); }

/* Viewfinder */
.bcs-viewfinder {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  background: #000;
  overflow: hidden;
}

#bcsVideo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bcs-frame {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.bcs-frame::before,
.bcs-frame::after {
  content: '';
  position: absolute;
  width: 64%;
  aspect-ratio: 2/1;
  border: 2px solid var(--accent-primary, #c4956a);
  border-radius: 6px;
}

.bcs-scanline {
  position: absolute;
  left: 18%;
  right: 18%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-primary, #c4956a), transparent);
  animation: bcs-scan 1.8s ease-in-out infinite;
}

@keyframes bcs-scan {
  0%   { top: 30%; }
  50%  { top: 70%; }
  100% { top: 30%; }
}

/* Hint & status */
.bcs-hint {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-secondary, #888);
  padding: 10px 16px 4px;
  margin: 0;
}

/* Result panel */
.bcs-result,
.bcs-not-found,
.bcs-unsupported {
  padding: 16px 18px;
}

.bcs-result__name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary, #fff);
  margin-bottom: 6px;
}

.bcs-result__macros {
  font-size: 0.83rem;
  color: var(--accent-primary, #c4956a);
  margin-bottom: 4px;
}

.bcs-result__serving {
  font-size: 0.78rem;
  color: var(--text-secondary, #888);
  margin-bottom: 12px;
}

.bcs-result__actions {
  display: flex;
  gap: 8px;
}

.bcs-result__actions .btn { flex: 1; }

.bcs-not-found p,
.bcs-unsupported p {
  font-size: 0.85rem;
  color: var(--text-secondary, #888);
  text-align: center;
  margin-bottom: 12px;
}