/* ==========================================================================
   Aetheris Brand Strategist — Unified Stylesheet
   ==========================================================================
   Design System Tokens:
     --primary:                #18241b  (Deep Forest Green)
     --surface:                #fbf9f7  (Warm Champagne)
     --on-surface:             #1b1c1b
     --outline-variant:        #c3c8c2
     --surface-variant:        #e4e2e0
     --surface-container-low:  #f6f3f1
     --surface-container:      #f0edeb
     --inverse-surface:        #30302f
   ========================================================================== */

:root {
  --primary: #18241b;
  --surface: #fbf9f7;
  --on-surface: #1b1c1b;
  --outline-variant: #c3c8c2;
  --surface-variant: #e4e2e0;
  --surface-container-low: #f6f3f1;
  --surface-container: #f0edeb;
  --inverse-surface: #30302f;
  --surface-bright: #fbf9f7;
  --primary-container: #2d3930;
  --on-primary-container: #95a397;
  --surface-container-lowest: #ffffff;
}


/* ==========================================================================
   1. Page Router
   Controls SPA page visibility with a subtle fade-in when activated.
   ========================================================================== */

.page-section {
  display: none;
}

.page-section.active {
  display: block;
  animation: pageFadeIn 0.35s ease-out;
}

@keyframes pageFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}


/* ==========================================================================
   2. Premium Input Styles
   Minimal, bottom-border-only inputs that highlight on focus.
   ========================================================================== */

.premium-input {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--outline-variant);
  border-radius: 0;
  padding: 12px 0;
  width: 100%;
  font-size: 16px;
  color: var(--on-surface);
  transition: border-color 0.3s ease;
}

.premium-input:focus {
  outline: none;
  box-shadow: none;
  border-bottom-color: var(--primary);
}

.premium-input::placeholder {
  color: var(--outline-variant);
}


/* ==========================================================================
   3. Range Slider Overrides
   Custom thumb and track for WebKit-based browsers.
   ========================================================================== */

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  background: transparent;
  cursor: pointer;
}

/* Track */
input[type="range"]::-webkit-slider-runnable-track {
  height: 2px;
  background: var(--outline-variant);
  border-radius: 1px;
}

/* Thumb */
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  margin-top: -7px; /* vertically center on the 2px track */
  box-shadow: 0 0 0 4px #ffffff;
  border: none;
}

/* Firefox track */
input[type="range"]::-moz-range-track {
  height: 2px;
  background: var(--outline-variant);
  border-radius: 1px;
  border: none;
}

/* Firefox thumb */
input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px #ffffff;
  border: none;
}


/* ==========================================================================
   4. Scrollbar Hiding
   Removes WebKit scrollbars globally for a cleaner interface.
   ========================================================================== */

::-webkit-scrollbar {
  display: none;
}

/* Firefox */
* {
  scrollbar-width: none;
}


/* ==========================================================================
   5. Reveal Animations
   Scroll-triggered entrance animation for content sections.
   ========================================================================== */

.reveal-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}


/* ==========================================================================
   6. Material Symbols Override
   Default weight/fill settings for Google Material Symbols.
   ========================================================================== */

.material-symbols-outlined {
  font-variation-settings:
    'FILL' 0,
    'wght' 300,
    'GRAD' 0,
    'opsz' 24;
}


/* ==========================================================================
   7. Chip Components
   Selectable tag-like elements used across onboarding and dashboard.
   ========================================================================== */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 9999px;
  border: 1px solid var(--outline-variant);
  background: var(--surface-bright);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  line-height: 1.4;
  color: var(--on-surface);
  cursor: pointer;
  transition: background 0.2s ease,
              color 0.2s ease,
              border-color 0.2s ease;
}

.chip:hover {
  border-color: var(--primary);
}

.chip.selected {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.chip .chip-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  font-size: 16px;
  line-height: 1;
  color: inherit;
  opacity: 0.7;
  transition: opacity 0.15s ease;
}

.chip .chip-remove:hover {
  opacity: 1;
}


/* ==========================================================================
   8. Card Selection
   Maturity-level cards with a selected highlight state.
   ========================================================================== */

.maturity-card {
  border: 1px solid var(--outline-variant);
  border-radius: 12px;
  padding: 20px;
  cursor: pointer;
  transition: border-color 0.25s ease,
              background-color 0.25s ease,
              box-shadow 0.25s ease;
}

.maturity-card:hover {
  border-color: var(--primary);
}

.maturity-card.selected {
  border-color: var(--primary);
  background-color: var(--surface-container-low);
  box-shadow: 0 1px 4px rgba(24, 36, 27, 0.08);
}


/* ==========================================================================
   9. Page Transitions
   Keyframe animation applied when navigating between pages.
   ========================================================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-enter {
  animation: fadeIn 0.4s ease-out both;
}


/* ==========================================================================
   10. Dashboard Layout
   Three-column CSS Grid: sidebar | main | artifacts panel.
   Collapses to single-column on mobile with an overlay sidebar.
   ========================================================================== */

.dashboard-layout {
  display: grid;
  grid-template-columns: 260px 1fr 320px;
  min-height: 100vh;
}

/* Sidebar — fixed left column */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  overflow-y: auto;
  z-index: 50;
  background: var(--surface);
  border-right: 1px solid var(--outline-variant);
  transform: translateX(0);
  transition: transform 0.3s ease;
}

/* Mobile: sidebar hidden by default, revealed with .open */
@media (max-width: 767px) {
  .sidebar {
    transform: translateX(-100%);
  }

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

/* Backdrop overlay when sidebar is open on mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 40;
}

.sidebar-overlay.active {
  display: block;
}


/* ==========================================================================
   11. Chat Styles
   User and AI message bubbles with distinct alignment and colors.
   ========================================================================== */

.chat-message {
  font-size: 15px;
  line-height: 1.6;
  word-wrap: break-word;
  transition: background-color 0.2s ease;
}

.chat-message:hover {
  background-color: var(--surface-container-lowest);
}


/* ==========================================================================
   12. Chat Input Bar
   Sticky bar at the bottom of the main chat area.
   ========================================================================== */

.chat-input-bar {
  position: sticky;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  padding: 16px;
  background: var(--surface);
  border-top: 1px solid var(--outline-variant);
  z-index: 10;
}

.chat-input-bar input,
.chat-input-bar textarea {
  flex: 1;
  min-height: 40px;
  resize: none;
}


/* ==========================================================================
   13. Responsive — Mobile Adjustments (max-width: 767px)
   ========================================================================== */

@media (max-width: 767px) {

  /* Collapse grid to single column */
  .dashboard-layout {
    grid-template-columns: 1fr;
  }

  /* Artifacts panel becomes full-width at the bottom */
  .artifacts-panel {
    width: 100%;
    position: relative;
    border-left: none;
    border-top: 1px solid var(--outline-variant);
  }

  /* Slightly reduce heading sizes */
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.35rem; }
  h3 { font-size: 1.1rem; }

  /* Chat messages take more width on small screens */
  .chat-message {
    max-width: 90%;
  }
}


/* ==========================================================================
   14. Custom Radio Indicator
   A simple circle with an inner dot when checked.
   ========================================================================== */

.radio-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--outline-variant);
  flex-shrink: 0;
  transition: border-color 0.2s ease;
}

.radio-indicator.checked {
  border-color: var(--primary);
}

.radio-indicator.checked::after {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}


/* ==========================================================================
   15. Gentle Pulse Animation
   Subtle scale pulse for checkmark icons on selected cards.
   ========================================================================== */

@keyframes gentlePulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.15);
    opacity: 0.85;
  }
}

.gentle-pulse {
  animation: gentlePulse 2s ease-in-out infinite;
}


/* ==========================================================================
   16. Progress Bar
   Horizontal step indicator with completed / upcoming states.
   ========================================================================== */

.progress-bar {
  display: flex;
  flex-direction: row;
  gap: 4px;
  width: 100%;
}

.progress-step {
  flex: 1;
  height: 2px;
  border-radius: 1px;
  background: var(--surface-variant);
  transition: background-color 0.3s ease;
}

.progress-step.completed {
  background: var(--primary);
}

.progress-step.upcoming {
  background: var(--surface-variant);
}


/* ==========================================================================
   17. Shake Animation (Aesthetic Chips Max-3 Feedback)
   ========================================================================== */

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

.shake {
  animation: shake 0.4s ease-in-out;
}


/* ==========================================================================
   18. Sidebar Nav Active State
   ========================================================================== */

.sidebar-nav-item.active {
  background-color: var(--surface-container-low);
  color: var(--primary);
  font-weight: 500;
  border-left: 3px solid var(--primary);
}


/* ==========================================================================
   19. Aesthetic Chip Selected State (via Tailwind override)
   ========================================================================== */

.aesthetic-chip.selected {
  background-color: var(--primary) !important;
  color: #ffffff !important;
  border-color: var(--primary) !important;
  box-shadow: 0 2px 8px rgba(24, 36, 27, 0.15);
}


/* ==========================================================================
   20. Chat main area grid placement
   ========================================================================== */

.chat-main {
  grid-column: 2;
}

.artifacts-panel {
  grid-column: 3;
}

@media (max-width: 767px) {
  .chat-main,
  .artifacts-panel {
    grid-column: 1;
  }
}


/* ==========================================================================
   21. Pipeline Loading Overlay
   ========================================================================== */

.pipeline-overlay {
  position: fixed;
  inset: 0;
  background: rgba(27, 28, 27, 0.6);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.pipeline-overlay.hidden {
  display: none;
}

.pipeline-modal {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 16px;
  padding: 40px;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 24px 48px rgba(24, 36, 27, 0.15);
}

.pipeline-modal-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.pipeline-stages {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pipeline-stage {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  background: var(--surface-container-low);
  opacity: 0.5;
  transition: opacity 0.3s ease, background 0.3s ease;
}

.pipeline-stage.active {
  opacity: 1;
  background: var(--primary-fixed);
}

.pipeline-stage.completed {
  opacity: 0.85;
}

.pipeline-stage.completed .pipeline-stage-icon {
  color: var(--primary);
}

.pipeline-stage.active .pipeline-stage-icon {
  animation: gentlePulse 1.5s ease-in-out infinite;
}

.pipeline-stage-icon {
  font-size: 20px;
  color: var(--outline);
}

.pipeline-stage-label {
  flex: 1;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--on-surface);
}

.pipeline-stage.completed .pipeline-stage-label::after {
  content: ' ✓';
  color: var(--primary);
}


/* ==========================================================================
   22. Strategy Board
   ========================================================================== */

.dashboard-view.hidden {
  display: none !important;
}

.strategy-board-header {
  border-bottom: 1px solid var(--outline-variant);
  padding-bottom: 24px;
}

.strategy-section {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--outline-variant);
}

.strategy-section:last-child {
  border-bottom: none;
}

.strategy-day-card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 12px;
  padding: 20px;
}

.strategy-day-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.strategy-badge {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 9999px;
  background: var(--primary-fixed);
  color: var(--on-primary-fixed);
}

.strategy-tag {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 9999px;
  background: var(--surface-container);
  color: var(--on-surface-variant);
}

.strategy-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.strategy-list li {
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--on-surface);
  padding-left: 20px;
  position: relative;
}

.strategy-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary);
}