/* Font loaded via layout.html <link> for better performance */

@property --narrow-sentinel {
  syntax: '<length-percentage>';
  inherits: true;
  initial-value: 100vi;
}

@layer reset, base, components, utilities, theme, overrides;

/* ============================================
   CONTRAST TEXT — auto black/white from background
   Chrome 139+: @function, Safari/Firefox: contrast-color()
   Fallback: oklch(from ... round()) — requires relative color syntax
   (Chrome 111+, Safari 16.4+, Firefox 128+)

   Threshold: round(1.21 - l) → white when L < 0.71, black when L > 0.71.
   OKLCH L ≈ 0.71 is roughly where white text drops below WCAG AA contrast
   against the background, making it a reasonable perceptual switch point.
   ============================================ */
@function --contrast-text(--bg) {
  result: oklch(from var(--bg) round(1.21 - l) 0 0);
}

/* ============================================
   CROSS-DOCUMENT VIEW TRANSITIONS
   Animate page sections on navigation
   ============================================ */
@view-transition {
  navigation: auto;
}

/* Nav persists across pages — morph instead of fade */
body > nav {
  view-transition-name: main-nav;
}

/* Main content gets a named transition */
#main-content {
  view-transition-name: page-content;
}

/* Page header animates independently */
.page-header {
  view-transition-name: page-header;
}

/* Default old-page exit: fade + blur out fast */
::view-transition-old(page-content) {
  animation: vt-fade-out 0.15s ease-in forwards;
}

/* New page entrance: slide up + fade in */
::view-transition-new(page-content) {
  animation: vt-slide-up 0.4s var(--ease-out, cubic-bezier(0.16, 1, 0.3, 1)) both;
}

/* Page header: slide in from left */
::view-transition-old(page-header) {
  animation: vt-fade-out 0.12s ease-in forwards;
}

::view-transition-new(page-header) {
  animation: vt-slide-right 0.45s var(--ease-out, cubic-bezier(0.16, 1, 0.3, 1)) both;
}

/* Nav: crossfade smoothly (no slide) */
::view-transition-old(main-nav),
::view-transition-new(main-nav) {
  animation-duration: 0.25s;
}

@keyframes vt-fade-out {
  to {
    opacity: 0;
    filter: blur(4px);
  }
}

@keyframes vt-slide-up {
  from {
    opacity: 0;
    transform: translateY(24px);
    filter: blur(2px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

@keyframes vt-slide-right {
  from {
    opacity: 0;
    transform: translateX(-20px);
    filter: blur(2px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
    filter: blur(0);
  }
}

/* ============================================
   LANDING ↔ SIGNIN — element-level morphing
   Matching elements morph position/size/content
   ============================================ */
.hero h1,
.signin-info h1 {
  view-transition-name: page-title;
}

.hero .tagline,
.signin-info .tagline {
  view-transition-name: page-subtitle;
}

.hero .cta-button.primary,
.signin-card {
  view-transition-name: action-focus;
}

.hero-visual {
  view-transition-name: hero-visual;
}

/* Title: morph position, size & crossfade text */
::view-transition-group(page-title) {
  animation-duration: 0.5s;
  animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Subtitle: slightly faster */
::view-transition-group(page-subtitle) {
  animation-duration: 0.45s;
  animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Button ↔ Card: expand/contract morph */
::view-transition-group(action-focus) {
  animation-duration: 0.55s;
  animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

::view-transition-old(action-focus) {
  animation-duration: 0.2s;
  animation-timing-function: ease-in;
}

::view-transition-new(action-focus) {
  animation-duration: 0.4s;
  animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Hero visual: scale + blur away on exit, scale in on enter */
::view-transition-old(hero-visual) {
  animation: vt-scale-out 0.3s ease-in forwards;
}

::view-transition-new(hero-visual) {
  animation: vt-scale-in 0.45s cubic-bezier(0.16, 1, 0.3, 1) 0.05s both;
}

@keyframes vt-scale-out {
  to {
    opacity: 0;
    transform: scale(0.85);
    filter: blur(6px);
  }
}

@keyframes vt-scale-in {
  from {
    opacity: 0;
    transform: scale(0.85);
    filter: blur(4px);
  }
  to {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }
}

/* JS page-transition classes (landing ↔ signin) */
#main-content.page-exit {
  animation: vt-fade-out 0.2s ease-in forwards;
}

#main-content.page-enter {
  animation: vt-slide-up 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* Skip per-element CSS entrance animations when content arrived via
   JS transition (the page-level animation handles it instead) */
#main-content[data-vt-loaded] :is(.hero-content, .hero-visual, .signin-info, .signin-card) {
  animation: none;
}

/* ============================================
   SHARED COMPONENTS
   Layout patterns reused across all pages
   ============================================ */
@layer components {
  .page {
    padding: 1rem;
  }

  /* === GRADIENT MESH BACKGROUND === */
  .page-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
  }

  .page-bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
  }

  .page-bg-orb--1 {
    width: var(--orb-1-size, 600px);
    height: var(--orb-1-size, 600px);
    top: var(--orb-1-top, -200px);
    right: var(--orb-1-right, -100px);
  }

  .page-bg-orb--2 {
    width: var(--orb-2-size, 500px);
    height: var(--orb-2-size, 500px);
    bottom: var(--orb-2-bottom, -150px);
    left: var(--orb-2-left, -150px);
  }

  .page-bg-orb--3 {
    width: var(--orb-3-size, 350px);
    height: var(--orb-3-size, 350px);
    top: var(--orb-3-top, 40%);
    left: var(--orb-3-left, 30%);
  }

  /* === PAGE HEADER === */
  .page-header {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-lg);
    margin-block-end: var(--space-xl);
    padding-block-end: var(--space-xl);

    .header-left,
    .header-title {
      display: flex;
      align-items: center;
      gap: var(--space-lg);
    }

    .header-actions {
      display: flex;
      flex-wrap: wrap;
      gap: var(--wire-gap);
      align-items: center;
    }

    h1 {
      font-family: var(--font-display);
      font-size: 1.6rem;
      font-weight: 800;
      letter-spacing: 0.02em;
      text-transform: uppercase;
      margin-block-end: var(--space-3xs);
    }

    .subtitle,
    .timestamp {
      font-size: var(--fs-small);
    }
  }

  .page-header-icon,
  .page-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    inline-size: 56px;
    block-size: 56px;
    border-radius: 16px;
    flex-shrink: 0;
  }

  /* === CHAT SIDEBAR === */
  .chat-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: 16px;
  }

  .sidebar-header {
    display: flex;
    gap: var(--space-sm);
    align-items: center;

    strong {
      display: block;
      font-size: var(--fs-small);
    }

    p {
      font-size: var(--fs-xsmall);
      opacity: 0.7;
    }
  }

  .ai-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    inline-size: 36px;
    block-size: 36px;
    border-radius: 10px;
    flex-shrink: 0;
  }

  .chat-card {
    padding: var(--space-sm) var(--space-md);
    border-radius: 14px;

    p {
      font-size: var(--fs-xsmall);
      line-height: 1.6;
      margin-block-end: var(--space-xs);

      &:last-child {
        margin-block-end: 0;
      }
    }
  }

  .suggested-actions {
    h4 {
      font-size: var(--fs-xsmall);
      font-weight: var(--fw-semibold);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-block-end: var(--space-sm);
      opacity: 0.6;
    }

    .action-chips {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .chip {
      padding: 6px var(--space-sm);
      border-radius: 10px;
      font-size: var(--fs-xsmall);
      cursor: pointer;
      text-align: start;
      transition: all 0.15s ease;
    }
  }

  .chat-input {
    display: flex;
    align-items: flex-end;
    gap: var(--space-xs);
    padding: 8px 8px 8px var(--space-sm);
    border-radius: 14px;

    textarea {
      flex: 1;
      border: none;
      background: transparent;
      padding: 6px 0;
      resize: none;
      font-family: inherit;
      font-size: var(--fs-xsmall);
      line-height: 1.5;
      overflow-y: auto;
      color: inherit;

      &::placeholder {
        color: var(--text-secondary);
      }

      &:focus {
        outline: none;
      }
    }

    .send-button {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      inline-size: 32px;
      block-size: 32px;
      border-radius: 10px;
      cursor: pointer;
      transition: all 0.15s ease;
    }
  }
}

/* Shared entrance keyframes */
@keyframes entrance-slide-right {
  from {
    opacity: 0;
    transform: translateX(-24px);
    filter: blur(3px);
  }
}

@keyframes entrance-slide-up {
  from {
    opacity: 0;
    transform: translateY(20px);
    filter: blur(2px);
  }
}

@keyframes entrance-fade-in {
  from {
    opacity: 0;
  }
}

/* ============================================
   PROFESSIONAL HR/RECRUITMENT THEME
   Clean, trustworthy, empowering recruiters
   ============================================ */
@layer theme {
  /* ============================================
       THEME TOKENS — auto-switch via color-scheme
       light-dark(light, dark)
       ============================================ */
  :root {
    color-scheme: dark;

    /* Typography */
    --font-primary: 'DM Sans', system-ui, -apple-system, sans-serif;
    --font-heading: 'Outfit', 'DM Sans', system-ui, sans-serif;
    --font-display: 'Orbitron', 'Outfit', system-ui, sans-serif;
    --font-mono: 'Roboto Mono', monospace;

    /* Rounded corners */
    --wire-radius: 0.5rem;

    /* Font sizes - Refined scale */
    --fs-xxl: 2.25rem;
    --fs-xl: 1.5rem;
    --fs-large: 1.125rem;

    /* Constant tokens */
    --button-text-color: oklch(100% 0 0);
    --color-white: oklch(100% 0 0);

    /* Background */
    --bg-primary: light-dark(oklch(98% 0.005 250), oklch(15% 0.01 250));
    --bg-secondary: light-dark(oklch(95% 0.008 250), oklch(20% 0.015 250));

    /* Text */
    --text-primary: light-dark(oklch(20% 0.01 250), oklch(95% 0.005 250));
    --text-secondary: light-dark(oklch(45% 0.01 250), oklch(65% 0.01 250));

    /* Primary accent */
    --accent-primary: light-dark(oklch(50% 0.18 270), oklch(65% 0.15 270));
    --accent-secondary: light-dark(oklch(45% 0.15 275), oklch(55% 0.12 275));
    --accent-glow: oklch(from var(--accent-primary) l c h / 0.2);

    /* Warm accent */
    --accent-warm: light-dark(oklch(60% 0.2 25), oklch(70% 0.18 25));
    --accent-warm-hover: light-dark(oklch(55% 0.18 25), oklch(65% 0.16 25));

    /* Status colors */
    --color-success: light-dark(oklch(55% 0.18 145), oklch(70% 0.15 145));
    --color-warning: light-dark(oklch(60% 0.18 85), oklch(75% 0.15 85));
    --color-info: light-dark(oklch(50% 0.15 230), oklch(65% 0.12 230));
    --color-error: light-dark(oklch(55% 0.22 25), oklch(65% 0.2 25));

    /* Borders */
    --border-color: light-dark(oklch(85% 0.005 250), oklch(30% 0.01 250));
    --wire-border: 1px solid light-dark(oklch(82% 0.008 250), oklch(28% 0.015 250));

    /* Surfaces */
    --surface-elevated: light-dark(oklch(100% 0 0), oklch(22% 0.015 250));
    --surface-base: light-dark(oklch(96% 0.005 250), oklch(18% 0.01 250));
    --surface-sunken: light-dark(oklch(92% 0.008 250), oklch(12% 0.008 250));
    --surface-deep: light-dark(oklch(94% 0.005 250), oklch(12% 0.015 260 / 0.6));

    /* Input styling */
    --input-bg: light-dark(oklch(100% 0 0), oklch(18% 0.01 250));
    --input-border-color: light-dark(oklch(80% 0.008 250), oklch(32% 0.015 250));
    --input-focus-shadow: oklch(from var(--accent-primary) l c h / 0.2);
    --input-bg-darker: light-dark(oklch(96% 0.005 250), oklch(9.8% 0.008 263.9));

    /* Shadows */
    --shadow-sm: 0 1px 2px light-dark(oklch(0% 0 0 / 0.08), oklch(0% 0 0 / 0.1));
    --shadow-md: 0 4px 12px light-dark(oklch(0% 0 0 / 0.1), oklch(0% 0 0 / 0.15));
    --shadow-lg: 0 8px 24px light-dark(oklch(0% 0 0 / 0.12), oklch(0% 0 0 / 0.2));
    --shadow-color: light-dark(oklch(0% 0 0 / 0.12), oklch(0% 0 0 / 0.65));

    /* Border variants */
    --border-subtle: light-dark(oklch(75% 0.02 260 / 0.3), oklch(40% 0.05 260 / 0.3));
    --border-muted: light-dark(oklch(80% 0.015 260 / 0.4), oklch(30% 0.03 260 / 0.5));
    --border-faint: light-dark(oklch(85% 0.01 260 / 0.4), oklch(25% 0.02 260 / 0.5));
    --border-section: light-dark(oklch(78% 0.015 260 / 0.3), oklch(35% 0.04 260 / 0.3));

    /* Highlights */
    --highlight-subtle: light-dark(oklch(0% 0 0 / 0.03), oklch(100% 0 0 / 0.05));
    --highlight-soft: light-dark(oklch(0% 0 0 / 0.08), oklch(100% 0 0 / 0.2));

    /* Glass tints — white in dark, black in light */
    --glass-tint: light-dark(oklch(0% 0 0), oklch(100% 0 0));
  }

  html[data-theme='light'] {
    color-scheme: light;
  }

  /* Clean background */
  html {
    background: var(--bg-primary);
    min-block-size: 100dvb;
  }

  body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.6;
  }

  /* Links - Professional indigo */
  a {
    color: var(--accent-primary);
    transition: color var(--time-fast) var(--ease-out);

    &:hover {
      color: oklch(from var(--accent-primary) calc(l + 0.1) c h);
    }
  }

  /* Smooth transitions */
  *,
  *::before,
  *::after {
    transition-property: background-color, border-color, box-shadow, color;
    transition-duration: 0.15s;
    transition-timing-function: ease-out;
  }

  /* Primary buttons - Gradient coral CTA with glow */
  .primary-button,
  .submit-button,
  .cta-button.primary {
    background: linear-gradient(
      135deg,
      light-dark(oklch(55% 0.22 25), oklch(65% 0.2 25)),
      light-dark(oklch(50% 0.24 15), oklch(60% 0.22 15))
    );
    border: none;
    color: white;
    font-family: var(--font-heading);
    font-weight: var(--fw-semibold);
    padding: var(--space-sm) var(--space-xl);
    border-radius: 100px;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
    cursor: pointer;
    box-shadow:
      0 4px 20px light-dark(oklch(55% 0.22 25 / 0.25), oklch(65% 0.2 25 / 0.3)),
      inset 0 1px 0 oklch(100% 0 0 / 0.1);

    &:hover {
      box-shadow:
        0 6px 28px light-dark(oklch(55% 0.22 25 / 0.35), oklch(65% 0.2 25 / 0.45)),
        inset 0 1px 0 oklch(100% 0 0 / 0.15);
      transform: translateY(-2px);
    }

    svg {
      transition: transform 0.25s ease-out;
    }

    &:hover svg {
      transform: translateX(3px);
    }
  }

  /* Secondary buttons - Glass outlined pill */
  .secondary-button,
  .cta-button:not(.primary) {
    background: oklch(from var(--accent-primary) l c h / 0.06);
    border: 1px solid oklch(from var(--accent-primary) l c h / 0.3);
    color: var(--accent-primary);
    font-family: var(--font-heading);
    font-weight: var(--fw-medium);
    font-size: var(--fs-small);
    padding: var(--space-sm) var(--space-xl);
    border-radius: 100px;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
    cursor: pointer;
    backdrop-filter: blur(8px);
    transition: all 0.25s ease-out;

    &:hover {
      background: oklch(from var(--accent-primary) l c h / 0.12);
      border-color: oklch(from var(--accent-primary) l c h / 0.5);
      box-shadow: 0 0 16px oklch(from var(--accent-primary) l c h / 0.15);
      transform: translateY(-1px);
    }
  }

  /* Cards - Glassmorphism panels */
  .card {
    background: light-dark(oklch(100% 0 0 / 0.7), oklch(100% 0 0 / 0.04));
    backdrop-filter: blur(12px);
    border: 1px solid oklch(from var(--glass-tint) l c h / 0.08);
    box-shadow:
      var(--shadow-sm),
      inset 0 1px 0 oklch(from var(--glass-tint) l c h / 0.05);
    border-radius: var(--wire-radius);
  }

  .card-header {
    h2 {
      color: var(--text-primary);
    }
    .card-hint {
      color: var(--text-secondary);
    }
  }

  .form-group label {
    color: var(--text-secondary);
  }

  /* Inputs - Clean with focus ring */
  input,
  textarea,
  select {
    background: var(--input-bg);
    border: 1px solid var(--input-border-color);
    color: var(--text-primary);
    border-radius: var(--wire-radius);

    &::placeholder {
      color: var(--text-secondary);
    }

    &:focus {
      outline: none;
      border-color: var(--accent-primary);
      box-shadow: 0 0 0 3px var(--input-focus-shadow);
    }
  }

  /* Tags/badges - Subtle colored pills */
  .tag {
    background: oklch(from var(--accent-primary) l c h / 0.15);
    border: 1px solid oklch(from var(--accent-primary) l c h / 0.3);
    color: oklch(from var(--accent-primary) calc(l + 0.1) calc(c - 0.03) h);
    font-size: var(--fs-xsmall);
    font-weight: var(--fw-medium);
  }

  .status-badge {
    font-size: var(--fs-xsmall);
    font-weight: var(--fw-semibold);
    text-transform: uppercase;
    letter-spacing: 0.03em;
  }

  .chip {
    background: var(--surface-base);
    border: 1px solid var(--border-color);
    color: var(--text-primary);

    &:hover {
      background: var(--surface-elevated);
      border-color: var(--accent-primary);
    }
  }

  /* Progress bars - Gradient */
  .progress {
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-warm));
    border-radius: 2px;
  }

  /* Table rows - Subtle hover */
  tbody tr:hover {
    background: var(--surface-elevated);
  }

  /* Headers - Space Grotesk for punch */
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-family: var(--font-heading);
  }

  h1 {
    color: var(--text-primary);
    font-weight: var(--fw-bold);
    letter-spacing: -0.02em;
    line-height: 1.2;
  }

  h2,
  h3 {
    color: var(--text-primary);
    font-weight: var(--fw-semibold);
  }

  /* View tabs - Clean pill style */
  .view-tab.active,
  .tab.active {
    background: var(--accent-primary);
    color: var(--button-text-color);
    font-weight: var(--fw-medium);
  }

  .view-tab,
  .tab {
    color: var(--text-secondary);

    &:not(.active):hover {
      background: var(--surface-elevated);
      color: var(--text-primary);
    }
  }

  /* Page header - Clean border */
  .page-header {
    padding-block-end: var(--space-lg);
    margin-block-end: var(--space-xl);
    border-block-end: 1px solid oklch(from var(--glass-tint) l c h / 0.06);

    &::after {
      display: none;
    }
  }

  /* Gradient title underlines — page h1 only */
  .page-header h1,
  .signin-info h1 {
    position: relative;

    &::after {
      content: '';
      position: absolute;
      inset-inline-start: 0;
      inset-block-end: -4px;
      inline-size: 100%;
      block-size: 3px;
      border-radius: 3px;
      background: linear-gradient(
        90deg,
        var(--accent-primary) 0%,
        var(--accent-warm) 55%,
        transparent 100%
      );
      box-shadow: 0 0 12px oklch(from var(--accent-primary) l c h / 0.4);
    }
  }

  /* Title accent bars */
  .company-title h2,
  .brief-header h2,
  .story-title,
  .dialog-header h2,
  .section-header h3,
  .insight-card .label {
    position: relative;

    &::after {
      content: '';
      position: absolute;
      inset-inline-start: 0;
      inset-block-end: -4px;
      inline-size: 48px;
      block-size: 2px;
      border-radius: 2px;
      background: linear-gradient(90deg, var(--accent-primary), var(--accent-warm));
    }
  }

  /* Background orbs - Shared gradient mesh theme */
  .page-bg-orb--1 {
    background: light-dark(oklch(55% 0.25 270 / 0.07), oklch(55% 0.25 270 / 0.18));
  }
  .page-bg-orb--2 {
    background: light-dark(oklch(65% 0.22 25 / 0.02), oklch(65% 0.22 25 / 0.05));
  }
  .page-bg-orb--3 {
    background: light-dark(oklch(60% 0.18 180 / 0.02), oklch(60% 0.18 180 / 0.05));
  }

  /* Page header icon - gradient */
  .page-header-icon,
  .page-header .page-icon {
    background: linear-gradient(
      135deg,
      light-dark(
        oklch(from var(--accent-primary) l c h / 0.15),
        oklch(from var(--accent-primary) l c h / 0.25)
      ),
      light-dark(
        oklch(from var(--accent-warm) l c h / 0.08),
        oklch(from var(--accent-warm) l c h / 0.15)
      )
    );
    border: 1px solid
      light-dark(
        oklch(from var(--accent-primary) l c h / 0.2),
        oklch(from var(--accent-primary) l c h / 0.35)
      );
    color: var(--accent-primary);
    box-shadow: 0 4px 18px
      light-dark(
        oklch(from var(--accent-primary) l c h / 0.1),
        oklch(from var(--accent-primary) l c h / 0.2)
      );
  }

  /* Chat sidebar - Glass */
  .chat-sidebar {
    background: light-dark(oklch(0% 0 0 / 0.02), oklch(100% 0 0 / 0.03));
    border: 1px solid oklch(from var(--glass-tint) l c h / 0.06);
    backdrop-filter: blur(20px);
  }

  .ai-avatar {
    background: oklch(from var(--accent-primary) l c h / 0.15);
    border: 1px solid oklch(from var(--accent-primary) l c h / 0.25);
    color: var(--accent-primary);
  }

  .page-header .subtitle,
  .page-header .timestamp {
    color: var(--text-secondary);
  }

  /* Feature icons - Indigo tinted */
  .feature-icon,
  .section-icon,
  .page-icon,
  .step-number,
  .chapter-number {
    background: oklch(from var(--accent-primary) l c h / 0.15);
    border: 1px solid oklch(from var(--accent-primary) l c h / 0.3);
    color: var(--accent-primary);
  }

  /* Stats styling */
  .stat-value {
    color: var(--accent-warm) !important;
    font-weight: var(--fw-bold);
    font-family: var(--font-heading);
  }

  /* Nav - fallback (nav.css overrides with gradient) */
  nav {
    background: var(--surface-sunken);
  }

  /* Signin card */
  .signin-card {
    background: var(--surface-elevated);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
  }

  /* Table styling */
  .positions-table {
    th {
      color: var(--text-secondary);
      font-weight: var(--fw-semibold);
      text-transform: uppercase;
      letter-spacing: 0.04em;
      font-size: var(--fs-xsmall);
      background: var(--surface-base);
    }

    td {
      border-color: var(--border-color);
    }
  }

  /* Labels */
  .label {
    color: var(--text-secondary);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.04em;
  }

  /* Chat sidebar - AI assistant feel */
  .chat-card {
    background: oklch(from var(--accent-primary) l c h / 0.06);
    border: 1px solid oklch(from var(--accent-primary) l c h / 0.12);
  }

  .suggested-actions .chip {
    background: oklch(from var(--glass-tint) l c h / 0.04);
    border: 1px solid oklch(from var(--glass-tint) l c h / 0.08);

    &:hover {
      background: oklch(from var(--accent-primary) l c h / 0.08);
      border-color: oklch(from var(--accent-primary) l c h / 0.2);
      color: var(--accent-primary);
    }
  }

  .chat-input {
    background: oklch(from var(--glass-tint) l c h / 0.04);
    border: 1px solid oklch(from var(--glass-tint) l c h / 0.08);

    &:focus-within {
      border-color: oklch(from var(--accent-primary) l c h / 0.3);
      box-shadow: 0 0 0 2px oklch(from var(--accent-primary) l c h / 0.06);
    }

    .send-button {
      background: var(--accent-primary);
      color: var(--button-text-color);
      border: none;

      &:hover {
        background: light-dark(oklch(45% 0.16 270), oklch(60% 0.14 270));
        transform: scale(1.05);
      }
    }
  }

  /* Theme toggle — single animated button */
  .theme-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    inline-size: 44px;
    block-size: 44px;
    border-radius: 50%;
    border: 1.5px solid oklch(90% 0.16 85 / 0.5);
    background: oklch(90% 0.16 85 / 0.1);
    backdrop-filter: blur(12px);
    cursor: pointer;
    color: oklch(95% 0.14 80);
    box-shadow: 0 0 10px oklch(90% 0.16 85 / 0.15);
    transition: all 0.25s ease;

    &:hover {
      color: oklch(95% 0.18 85);
      border-color: oklch(85% 0.18 85 / 0.6);
      background: oklch(85% 0.18 85 / 0.18);
      box-shadow: 0 0 16px oklch(85% 0.18 85 / 0.25);
    }

    .theme-icon {
      transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }

    &:active .theme-icon {
      transform: scale(0.85);
    }

    /* Sun/moon icon swap */
    .icon-sun {
      transition:
        opacity 0.3s ease,
        transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .icon-moon {
      opacity: 0;
      transform: rotate(-45deg) scale(0.6);
      transition:
        opacity 0.3s ease,
        transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
  }

  /* Light mode: show moon, hide sun */
  html[data-theme='light'] .theme-toggle-btn {
    color: oklch(45% 0.18 270);
    border-color: oklch(45% 0.15 270 / 0.3);
    background: oklch(45% 0.15 270 / 0.06);

    &:hover {
      color: oklch(40% 0.2 270);
      border-color: oklch(40% 0.2 270 / 0.4);
      background: oklch(40% 0.2 270 / 0.1);
      box-shadow: 0 0 12px oklch(40% 0.2 270 / 0.15);
    }

    .icon-sun {
      opacity: 0;
      transform: rotate(45deg) scale(0.6);
    }
    .icon-moon {
      opacity: 1;
      transform: rotate(0) scale(1);
    }
  }
}

@layer reset {
  /* Modern CSS Reset */
  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    -moz-text-size-adjust: none;
    -webkit-text-size-adjust: none;
    text-size-adjust: none;
    container-type: size;
    container-name: root;
    block-size: 100vb;
  }

  body {
    margin: 0;
    line-height: 1.5;
    text-rendering: optimizeSpeed;
    min-block-size: 100cqb;
  }

  img,
  picture,
  svg {
    display: block;
    max-inline-size: 100%;
  }

  input,
  button,
  textarea,
  select {
    font: inherit;
    appearance: none;
  }

  dialog {
    color: inherit;
  }

  /* Custom elements default to inline — make them block */
  expand-panel {
    display: block;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    overflow-wrap: break-word;
    margin: 0;
  }

  a {
    text-decoration: none;
  }

  ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  /* Remove animations for people who've turned them off */
  @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;
    }
  }
}

@layer base {
  :root {
    /* Breakpoints & measures */
    --breakpoint: 600px;
    --measure-narrow: 35ch;
    --measure: 60ch;
    --measure-wide: 90ch;
    --full: stretch;

    /* Font Sizes (base scale) */
    --fs-medium: 1.05rem;
    --fs-body: 1rem;
    --fs-small: 0.95rem;
    --fs-xsmall: 0.9rem;
    --fs-xxsmall: 0.85rem;
    --fs-tiny: 0.8rem;

    /* Font Weights */
    --fw-regular: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;
    --fw-extrabold: 800;

    /* Timing */
    --time-fast: 0.2s;
    --time-medium: 0.3s;
    --time-slow: 0.4s;
    --time-slower: 0.5s;
    --time-slowest: 0.6s;
    --time-animation: 1.3s;

    /* Easing */
    --ease-standard: ease;
    --ease-out: ease-out;
    --ease-in-out: ease-in-out;
    --ease-bounce: cubic-bezier(0.23, 1, 0.32, 1);

    /* Spacing (based on --wire-gap) */
    --wire-gap: 0.75rem;
    --space-4xs: calc(var(--wire-gap) * 0.12);
    --space-3xs: calc(var(--wire-gap) * 0.33);
    --space-2xs: calc(var(--wire-gap) * 0.25);
    --space-xs: calc(var(--wire-gap) * 0.5);
    --space-sm: calc(var(--wire-gap) * 0.67);
    --space-compact: calc(var(--wire-gap) * 0.83);
    --space-md: calc(var(--wire-gap) * 1.17);
    --space-base: calc(var(--wire-gap) * 1.33);
    --space-lg: calc(var(--wire-gap) * 1.67);
    --space-xl: calc(var(--wire-gap) * 2);
    --space-2xl: calc(var(--wire-gap) * 2.67);
    --space-3xl: calc(var(--wire-gap) * 3.33);

    /* Glow spread sizes */
    --glow-spread-sm: calc(var(--wire-gap) * 1.25);
    --glow-spread-md: calc(var(--wire-gap) * 2.5);
    --glow-spread-lg: calc(var(--wire-gap) * 5);

    --corner-accent-size: 0.5rem;

    /* Border radius scale */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --radius-2xl: 24px;
    --radius-pill: 100px;
  }
}