/* ── Self-hosted variable fonts (woff2, served by Vite from /public/fonts) ── */
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('/fonts/plus-jakarta-sans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('/fonts/plus-jakarta-sans-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02AF, U+0304, U+0308, U+0329, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('/fonts/space-grotesk-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('/fonts/space-grotesk-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02AF, U+0304, U+0308, U+0329, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  color-scheme: light dark;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', system-ui, sans-serif;

  /* ── Layer 1 — Primitives (oklch) ── */

  /* Brand: deep violet (anchor: --brand-700 ≈ #7c3aed) */
  --brand-50:  oklch(0.977 0.014 308);
  --brand-100: oklch(0.946 0.033 307);
  --brand-200: oklch(0.902 0.063 306);
  --brand-300: oklch(0.827 0.119 306);
  --brand-400: oklch(0.714 0.203 305);
  --brand-500: oklch(0.627 0.265 304);
  --brand-600: oklch(0.558 0.288 303);
  --brand-700: oklch(0.496 0.265 302);
  --brand-800: oklch(0.438 0.230 303);
  --brand-900: oklch(0.381 0.176 305);
  --brand-950: oklch(0.257 0.135 305);

  /* Neutral */
  --neutral-50:  oklch(0.985 0 0);
  --neutral-100: oklch(0.967 0.001 286);
  --neutral-200: oklch(0.920 0.004 286);
  --neutral-300: oklch(0.871 0.006 286);
  --neutral-400: oklch(0.705 0.015 286);
  --neutral-500: oklch(0.552 0.014 286);
  --neutral-600: oklch(0.442 0.017 286);
  --neutral-700: oklch(0.370 0.013 286);
  --neutral-800: oklch(0.274 0.006 286);
  --neutral-900: oklch(0.210 0.006 286);
  --neutral-950: oklch(0.141 0.005 286);

  /* Status primitives */
  --green-600: oklch(0.627 0.170 149);
  --green-50:  oklch(0.982 0.018 156);
  --amber-600: oklch(0.666 0.179 58);
  --amber-50:  oklch(0.987 0.022 95);
  --red-600:   oklch(0.577 0.245 27);
  --red-50:    oklch(0.971 0.013 18);
  --blue-600:  oklch(0.546 0.245 263);
  --blue-50:   oklch(0.970 0.014 254);
  --pink-400:  oklch(0.718 0.169 350);

  /* ── Layer 2 — Semantic tokens (light) ── */
  --color-bg: oklch(0.984 0.011 308);
  --color-surface: oklch(1 0 0);
  --color-surface-2: oklch(0.962 0.020 307);
  --color-border: oklch(0.496 0.265 302 / 0.15);
  --color-text: var(--neutral-900);
  --color-muted: var(--neutral-600);

  --color-brand: var(--brand-700);
  --color-brand-dark: var(--brand-800);
  --color-brand-light: var(--brand-400);
  --color-accent: var(--pink-400);
  --color-focus: var(--brand-700);

  --color-success: var(--green-600);
  --color-success-soft: var(--green-50);
  --color-warning: var(--amber-600);
  --color-warning-soft: var(--amber-50);
  --color-error: var(--red-600);
  --color-error-soft: var(--red-50);
  --color-info: var(--blue-600);
  --color-info-soft: var(--blue-50);

  /* Radii */
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(124, 58, 237, 0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow: 0 4px 16px rgba(124, 58, 237, 0.12), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 30px rgba(124, 58, 237, 0.16), 0 4px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 20px 60px rgba(124, 58, 237, 0.2), 0 8px 16px rgba(0,0,0,0.08);
  --shadow-brand: 0 4px 20px rgba(124, 58, 237, 0.4);

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Typography */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;

  /* Transitions */
  --transition: 0.15s ease;
  --transition-slow: 0.25s ease;
}

/* ── Dark theme — override semantic tokens only (WCAG AA) ── */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: oklch(0.165 0.022 305);
    --color-surface: oklch(0.215 0.028 305);
    --color-surface-2: oklch(0.262 0.035 305);
    --color-border: oklch(0.714 0.203 305 / 0.22);
    --color-text: oklch(0.962 0.012 307);
    --color-muted: oklch(0.775 0.025 305);

    --color-brand: var(--brand-400);
    --color-brand-dark: var(--brand-500);
    --color-brand-light: var(--brand-300);
    --color-focus: var(--brand-300);

    --color-success: oklch(0.723 0.170 149);
    --color-success-soft: oklch(0.27 0.05 156);
    --color-warning: oklch(0.79 0.16 70);
    --color-warning-soft: oklch(0.30 0.06 80);
    --color-error: oklch(0.704 0.191 22);
    --color-error-soft: oklch(0.29 0.08 20);
    --color-info: oklch(0.707 0.165 254);
    --color-info-soft: oklch(0.28 0.07 258);

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.5);
    --shadow: 0 4px 16px rgba(0,0,0,0.55);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.6);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.65);
    --shadow-brand: 0 4px 20px rgba(124, 58, 237, 0.5);
  }
}
/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

img, svg { display: block; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

p { margin: 0; }

/* ── Skip link ── */
.skip-link {
  background: var(--color-brand);
  border-radius: var(--radius-sm);
  color: #fff;
  font-weight: 700;
  left: 12px;
  padding: 10px 16px;
  position: absolute;
  top: -60px;
  z-index: 100;
  transition: top var(--transition);
}
.skip-link:focus-visible { top: 12px; }

/* ── Focus ── */
:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 3px;
}

/* ── Header ── */
.site-header-wrap {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(248, 245, 255, 0.88);
  border-bottom: 1px solid var(--color-border);
}
.site-header {
  align-items: center;
  display: flex;
  gap: var(--space-6);
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1200px;
  padding: 14px 24px;
}
.brand {
  align-items: center;
  display: flex;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  gap: var(--space-2);
  letter-spacing: -0.03em;
  text-decoration: none;
  color: var(--color-text);
}
.brand-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}
.site-nav {
  align-items: center;
  display: flex;
  gap: var(--space-1);
}
.nav-link {
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: 6px 12px;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active { color: var(--color-brand); background: var(--brand-50); text-decoration: none; }
.nav-link.active { font-weight: 600; }
.nav-auth { display: flex; align-items: center; gap: var(--space-3); }
.btn-login {
  background: var(--color-brand);
  border: none;
  border-radius: var(--radius-pill);
  color: #fff;
  cursor: pointer;
  font: 500 var(--font-size-sm) / 1 inherit;
  padding: 8px 18px;
  box-shadow: var(--shadow-brand);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-login:hover { background: var(--color-brand-dark); transform: translateY(-1px); box-shadow: 0 6px 24px rgba(124,58,237,0.5); }
.nav-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 2px solid var(--brand-300);
  cursor: pointer;
  overflow: hidden;
  background: var(--brand-100);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--font-size-sm); font-weight: 600; color: var(--brand-700);
}
.nav-avatar img { width: 100%; height: 100%; object-fit: cover; }

/* ── Layout ── */
.page-shell {
  margin: 0 auto;
  max-width: 1200px;
  padding: 0 24px var(--space-16);
}

/* ── Hero Section ── */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  inset: -60px;
  background: radial-gradient(ellipse 80% 60% at 50% 30%, rgba(168, 85, 247, 0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--brand-50);
  border: 1px solid var(--brand-200);
  border-radius: var(--radius-pill);
  color: var(--brand-700);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-5);
  padding: 5px 14px;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-5);
  background: linear-gradient(135deg, #18181b 0%, var(--brand-700) 50%, var(--brand-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  color: var(--color-muted);
  font-size: var(--font-size-lg);
  line-height: 1.65;
  max-width: 560px;
  margin: 0 auto var(--space-10);
}

/* ── Explore Tool ── */
.explore-tool {
  max-width: 660px;
  margin: 0 auto;
}
.explore-input-wrap {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.explore-input-wrap:focus-within {
  border-color: var(--brand-400);
  box-shadow: var(--shadow-lg), 0 0 0 4px rgba(124,58,237,0.08);
}
.explore-textarea {
  border: none;
  background: transparent;
  color: var(--color-text);
  display: block;
  font: var(--font-size-base) / 1.6 inherit;
  min-height: 100px;
  outline: none;
  padding: 20px 24px 12px;
  resize: none;
  width: 100%;
}
.explore-textarea::placeholder { color: var(--neutral-400); }
.explore-footer {
  align-items: center;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  padding: 12px 16px;
}
.explore-hint { color: var(--color-muted); font-size: var(--font-size-xs); }
.btn-explore {
  align-items: center;
  background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
  border: none;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-brand);
  color: #fff;
  cursor: pointer;
  display: flex;
  font: 600 var(--font-size-sm) / 1 'Plus Jakarta Sans', inherit;
  gap: var(--space-2);
  padding: 10px 22px;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}
.btn-explore:hover { transform: translateY(-1px); box-shadow: 0 6px 28px rgba(124,58,237,0.5); }
.btn-explore:active { transform: translateY(0); }
.btn-explore:disabled { opacity: 0.6; cursor: default; transform: none; }
.explore-examples {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-top: var(--space-4);
}
.example-chip {
  background: var(--brand-50);
  border: 1px solid var(--brand-200);
  border-radius: var(--radius-pill);
  color: var(--brand-700);
  cursor: pointer;
  font-size: var(--font-size-xs);
  padding: 5px 14px;
  transition: background var(--transition), border-color var(--transition);
}
.example-chip:hover { background: var(--brand-100); border-color: var(--brand-400); }

/* ── Journey View ── */
.journey-shell {
  padding-top: var(--space-8);
}
.journey-header {
  margin-bottom: var(--space-8);
}
.journey-title-row {
  align-items: flex-start;
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  flex-wrap: wrap;
}
.journey-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
}
.journey-meta {
  align-items: center;
  color: var(--color-muted);
  display: flex;
  font-size: var(--font-size-sm);
  gap: var(--space-4);
  margin-top: var(--space-3);
}
.journey-actions {
  display: flex;
  gap: var(--space-2);
}
.btn-share {
  align-items: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  cursor: pointer;
  display: flex;
  font: 500 var(--font-size-sm) / 1 inherit;
  gap: 6px;
  padding: 8px 16px;
  transition: border-color var(--transition), color var(--transition);
}
.btn-share:hover { border-color: var(--brand-300); color: var(--brand-700); }
.btn-new {
  background: var(--brand-50);
  border: 1px solid var(--brand-200);
  border-radius: var(--radius-pill);
  color: var(--brand-700);
  cursor: pointer;
  font: 600 var(--font-size-sm) / 1 inherit;
  padding: 8px 18px;
  transition: background var(--transition);
}
.btn-new:hover { background: var(--brand-100); }

/* Tabs */
.journey-tabs {
  border-bottom: 2px solid var(--color-border);
  display: flex;
  gap: 0;
  margin-bottom: var(--space-8);
  overflow-x: auto;
}
.tab-btn {
  align-items: center;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-muted);
  cursor: pointer;
  display: flex;
  font: 500 var(--font-size-sm) / 1 inherit;
  gap: 6px;
  margin-bottom: -2px;
  padding: 12px 20px;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.tab-btn:hover { color: var(--color-text); }
.tab-btn.active { border-bottom-color: var(--brand-600); color: var(--brand-700); font-weight: 600; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Concept Map */
.concepts-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.concept-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}
.concept-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-400), var(--brand-700));
  opacity: 0;
  transition: opacity var(--transition);
}
.concept-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--brand-300); }
.concept-card:hover::before { opacity: 1; }
.concept-card.core { border-color: var(--brand-300); }
.concept-card.core::before { opacity: 1; }
.concept-level {
  background: var(--brand-50);
  border: 1px solid var(--brand-200);
  border-radius: var(--radius-pill);
  color: var(--brand-700);
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
  padding: 3px 10px;
  text-transform: uppercase;
}
.concept-card.secondary .concept-level { background: var(--color-info-soft); border-color: #bfdbfe; color: var(--color-info); }
.concept-card.peripheral .concept-level { background: var(--neutral-100); border-color: var(--neutral-200); color: var(--neutral-600); }
.concept-label {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.concept-desc { color: var(--color-muted); font-size: var(--font-size-sm); line-height: 1.6; margin-bottom: var(--space-4); }
.concept-related { display: flex; flex-wrap: wrap; gap: 6px; }
.related-tag {
  background: var(--color-surface-2);
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-size: 11px;
  padding: 3px 10px;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}
.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--brand-300), var(--brand-100));
}
.timeline-event {
  position: relative;
  padding-bottom: var(--space-8);
}
.timeline-event:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-8) + 12px);
  top: 4px;
  width: 18px; height: 18px;
  background: var(--color-surface);
  border: 3px solid var(--brand-500);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(168,85,247,0.15);
  z-index: 1;
}
.timeline-event:first-child .timeline-dot { border-color: var(--brand-700); background: var(--brand-100); }
.timeline-phase {
  color: var(--brand-600);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
  text-transform: uppercase;
}
.timeline-milestone {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.timeline-desc { color: var(--color-muted); font-size: var(--font-size-sm); line-height: 1.65; max-width: 620px; }

/* Sources */
.sources-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.source-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  transition: box-shadow var(--transition), border-color var(--transition);
  text-decoration: none;
}
.source-card:hover { box-shadow: var(--shadow-md); border-color: var(--brand-300); text-decoration: none; }
.source-category-badge {
  align-self: flex-start;
  background: var(--brand-50);
  border: 1px solid var(--brand-200);
  border-radius: var(--radius-pill);
  color: var(--brand-700);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  text-transform: uppercase;
}
.source-title { font-weight: 600; font-size: var(--font-size-base); color: var(--color-text); }
.source-desc { color: var(--color-muted); font-size: var(--font-size-sm); line-height: 1.6; flex: 1; }
.source-link-row {
  align-items: center;
  color: var(--brand-600);
  display: flex;
  font-size: var(--font-size-xs);
  font-weight: 600;
  gap: 4px;
  letter-spacing: 0.02em;
}

/* Challenges */
.challenges-list { display: grid; gap: var(--space-6); }
.challenge-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
}
.challenge-num {
  color: var(--brand-600);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
  text-transform: uppercase;
}
.challenge-question {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-5);
}
.challenge-options { display: grid; gap: var(--space-2); }
.option-btn {
  background: var(--color-surface-2);
  border: 2px solid transparent;
  border-radius: var(--radius);
  color: var(--color-text);
  cursor: pointer;
  font: 500 var(--font-size-sm) / 1.5 inherit;
  padding: 12px 16px;
  text-align: left;
  transition: background var(--transition), border-color var(--transition);
}
.option-btn:hover:not(:disabled) { background: var(--brand-50); border-color: var(--brand-300); }
.option-btn.correct { background: var(--color-success-soft); border-color: var(--color-success); color: var(--color-success); }
.option-btn.wrong { background: var(--color-error-soft); border-color: var(--color-error); color: var(--color-error); }
.option-btn:disabled { cursor: default; }
.challenge-explanation {
  background: var(--brand-50);
  border-left: 3px solid var(--brand-400);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-muted);
  display: none;
  font-size: var(--font-size-sm);
  line-height: 1.6;
  margin-top: var(--space-4);
  padding: var(--space-4);
}
.challenge-explanation.visible { display: block; }

/* ── My Journeys ── */
.journeys-header {
  align-items: center;
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}
.journeys-header h1 { font-size: var(--font-size-3xl); }
.journeys-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}
.journey-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  padding: var(--space-5);
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  display: block;
}
.journey-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); text-decoration: none; }
.journey-card-title { font-family: var(--font-display); font-size: var(--font-size-lg); font-weight: 600; margin-bottom: var(--space-2); }
.journey-card-input {
  color: var(--color-muted); font-size: var(--font-size-sm);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  margin-bottom: var(--space-3);
}
.journey-card-meta {
  align-items: center; color: var(--neutral-400); display: flex; font-size: 11px; gap: var(--space-4);
}

/* ── Pricing ── */
.pricing-header { text-align: center; padding: var(--space-16) 0 var(--space-10); }
.pricing-title { font-size: var(--font-size-4xl); font-weight: 700; letter-spacing: -0.03em; margin-bottom: var(--space-4); }
.pricing-sub { color: var(--color-muted); font-size: var(--font-size-lg); max-width: 500px; margin: 0 auto; }
.pricing-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  max-width: 760px;
  margin: 0 auto var(--space-16);
}
.plan-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: var(--space-8);
  position: relative;
}
.plan-card.featured {
  border-color: var(--brand-500);
  box-shadow: var(--shadow-lg), 0 0 0 4px rgba(124,58,237,0.1);
}
.plan-badge {
  background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
  border-radius: var(--radius-pill);
  color: #fff;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  position: absolute;
  right: 20px;
  text-transform: uppercase;
  top: -14px;
}
.plan-name {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.plan-price {
  align-items: baseline;
  display: flex;
  gap: 4px;
  margin-bottom: var(--space-6);
}
.plan-amount {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}
.plan-period { color: var(--color-muted); font-size: var(--font-size-sm); }
.plan-features { display: grid; gap: var(--space-3); margin-bottom: var(--space-8); }
.plan-feature {
  align-items: flex-start;
  display: flex;
  font-size: var(--font-size-sm);
  gap: var(--space-2);
}
.feature-check { color: var(--color-success); flex-shrink: 0; margin-top: 2px; }
.btn-plan {
  border-radius: var(--radius-pill);
  cursor: pointer;
  font: 600 var(--font-size-base) / 1 inherit;
  padding: 13px 24px;
  text-align: center;
  transition: background var(--transition), transform var(--transition);
  width: 100%;
  border: none;
}
.btn-plan.primary {
  background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
  box-shadow: var(--shadow-brand);
  color: #fff;
}
.btn-plan.primary:hover { transform: translateY(-1px); box-shadow: 0 6px 28px rgba(124,58,237,0.5); }
.btn-plan.ghost {
  background: transparent;
  border: 2px solid var(--color-border);
  color: var(--color-text);
}
.btn-plan.ghost:hover { border-color: var(--brand-300); color: var(--brand-700); background: var(--brand-50); }

/* ── Guides ── */
.guides-header { padding: var(--space-12) 0 var(--space-8); }
.guides-header h1 { font-size: var(--font-size-3xl); margin-bottom: var(--space-4); }
.guides-grid { display: grid; gap: var(--space-5); grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }
.guide-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
}
.guide-icon {
  background: var(--brand-50);
  border: 1px solid var(--brand-200);
  border-radius: var(--radius);
  color: var(--brand-600);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-size: 1.25rem;
  margin-bottom: var(--space-4);
}
.guide-title { font-family: var(--font-display); font-size: var(--font-size-lg); font-weight: 600; margin-bottom: var(--space-2); }
.guide-body { color: var(--color-muted); font-size: var(--font-size-sm); line-height: 1.7; }

/* ── FAQ ── */
.faq-header { padding: var(--space-12) 0 var(--space-8); }
.faq-header h1 { font-size: var(--font-size-3xl); margin-bottom: var(--space-4); }
.faq-list { display: grid; gap: var(--space-3); max-width: 760px; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.faq-question {
  align-items: center;
  background: transparent;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  font: 600 var(--font-size-base) / 1.4 inherit;
  gap: var(--space-3);
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  text-align: left;
  width: 100%;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--brand-700); }
.faq-chevron { flex-shrink: 0; transition: transform var(--transition-slow); font-size: 1.1rem; }
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-answer {
  color: var(--color-muted);
  display: none;
  font-size: var(--font-size-sm);
  line-height: 1.75;
  padding: 0 var(--space-6) var(--space-5);
}
.faq-item.open .faq-answer { display: block; }

/* ── Admin ── */
.admin-shell { padding-top: var(--space-8); }
.admin-header { margin-bottom: var(--space-8); }
.admin-header h1 { font-size: var(--font-size-3xl); }
.admin-stats { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); margin-bottom: var(--space-8); }
.stat-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-5); }
.stat-label { color: var(--color-muted); font-size: var(--font-size-sm); margin-bottom: var(--space-2); }
.stat-value { font-family: var(--font-display); font-size: var(--font-size-3xl); font-weight: 700; }

/* ── Section headings ── */
.section-heading {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.section-sub { color: var(--color-muted); font-size: var(--font-size-sm); margin-bottom: var(--space-6); }

/* ── Buttons shared ── */
.btn { border-radius: var(--radius-pill); cursor: pointer; font: 600 var(--font-size-sm)/1 inherit; padding: 10px 20px; transition: background var(--transition), transform var(--transition); border: none; }
.btn-primary { background: linear-gradient(135deg, var(--brand-600), var(--brand-800)); color: #fff; box-shadow: var(--shadow-brand); }
.btn-primary:hover { transform: translateY(-1px); }
.btn-secondary { background: transparent; border: 2px solid var(--color-border); color: var(--color-text); }
.btn-secondary:hover { border-color: var(--brand-300); color: var(--brand-700); }

/* ── Notifications / Toast ── */
.toast-wrap {
  bottom: var(--space-6); right: var(--space-6);
  display: grid; gap: var(--space-2);
  position: fixed; z-index: 200; width: 320px;
}
.toast {
  background: var(--neutral-900);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  color: #fff;
  font-size: var(--font-size-sm);
  padding: var(--space-4) var(--space-5);
  animation: slide-in 0.2s ease;
}
.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-error); }
@keyframes slide-in { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: var(--font-size-sm);
  gap: var(--space-6);
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1200px;
  padding: var(--space-8) 24px var(--space-10);
}
.footer-links { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.footer-links a { color: var(--color-muted); transition: color var(--transition); }
.footer-links a:hover { color: var(--brand-600); text-decoration: none; }

/* ── Legal ── */
.legal-page { max-width: 780px; padding: var(--space-12) 0; }
.legal-page h1 { font-size: var(--font-size-3xl); margin-bottom: var(--space-6); }
.legal-page h2 { font-size: var(--font-size-xl); margin: var(--space-8) 0 var(--space-3); }
.legal-page p { color: var(--color-muted); line-height: 1.75; margin-bottom: var(--space-4); }

/* ── Ad slots ── */
.ad-slot { min-height: 90px; padding: var(--space-4) 0; }
.ad-slot[data-plan="paid"] { display: none; }

/* ── Auth gate ── */
.auth-gate {
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  max-width: 480px;
  margin: var(--space-16) auto;
  padding: var(--space-12);
  text-align: center;
}
.auth-gate-icon { font-size: 3rem; margin-bottom: var(--space-2); }
.auth-gate h2 { font-size: var(--font-size-2xl); }
.auth-gate p { color: var(--color-muted); }

/* ── Loading state ── */
.loading-state {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-16);
  text-align: center;
  color: var(--color-muted);
}
.loading-spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--brand-100);
  border-top-color: var(--brand-600);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-text { font-size: var(--font-size-base); }

/* ── Account section ── */
.account-section {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}
.account-section__title { font-size: var(--font-size-xl); margin-bottom: var(--space-4); }
.account-section__row { color: var(--color-muted); margin-bottom: var(--space-4); }
.account-danger {
  border: 1px solid var(--color-error);
  border-radius: var(--radius);
  padding: var(--space-5);
  background: var(--color-error-soft);
}
.account-danger__desc { color: var(--color-text); margin-bottom: var(--space-4); }
.account-danger__status { margin-top: var(--space-3); color: var(--color-muted); font-size: var(--font-size-sm); }
.btn-danger {
  background: var(--color-error);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
  transition: filter var(--transition);
}
.btn-danger:hover { filter: brightness(0.92); }
.btn-danger:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.btn-danger:disabled { opacity: 0.6; cursor: not-allowed; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .site-header { padding: 12px 16px; }
  .page-shell { padding: 0 16px var(--space-12); }
  .hero-section { padding: 48px 0 40px; }
  .hero-title { font-size: 2rem; }
  .hero-sub { font-size: var(--font-size-base); }
  .site-footer { padding: var(--space-6) 16px var(--space-8); }
  .journey-title-row { flex-direction: column; }
  .pricing-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .nav-link { display: none; }
  .nav-link.nav-link--mobile { display: inline-flex; }
}

/* ── UI kit components ── */
.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; }
.ui-empty { display: grid; justify-items: center; gap: var(--space-3); padding: var(--space-10) var(--space-6);
  text-align: center; border: 1px dashed var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface-2); }
.ui-empty__icon { font-size: 2.5rem; }
.ui-empty__title { font-family: var(--font-display); font-size: var(--font-size-xl); font-weight: 600; }
.ui-empty__body { color: var(--color-muted); max-width: 40ch; font-size: var(--font-size-sm); }
.ui-spinner { display: inline-flex; align-items: center; gap: var(--space-3); color: var(--color-muted); }
.ui-spinner__ring { width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--brand-100); border-top-color: var(--brand-600); animation: spin 0.8s linear infinite; }