/* ============================================================
   NOSCOPO — Guest Verification & Check-In Safety App
   Art direction: Trust + urgency. Deep navy + alert coral.
   Template lineage: adapted from the nannee design system
   (Cabinet Grotesk / Satoshi, navy+coral, comparison-card motif).
   ============================================================ */

/* --- DESIGN TOKENS --- */
:root {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.75rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* Fixed light text for permanently-dark navy surfaces (cards, CTA band,
     sign-up side panel) — must stay light in BOTH light and dark theme,
     unlike --color-text-inverse which flips per theme. */
  --color-on-navy: #f8f7f4;
  --color-on-navy-muted: rgba(248, 247, 244, 0.75);
  --color-on-navy-faint: rgba(248, 247, 244, 0.6);
}

/* --- LIGHT MODE (default) --- */
:root,
[data-theme='light'] {
  --color-bg: #f8f7f4;
  --color-surface: #ffffff;
  --color-surface-2: #f1f0ed;
  --color-surface-offset: #eae8e3;
  --color-divider: #ddd9d2;
  --color-border: #d1cdc5;

  --color-text: #14141f;
  --color-text-muted: #6b6b7b;
  --color-text-faint: #a5a5b2;
  --color-text-inverse: #f8f7f4;

  --color-primary: #e8564a;
  --color-primary-hover: #d14438;
  --color-primary-active: #b83a30;
  --color-primary-subtle: #fef0ee;

  --color-navy: #14141f;
  --color-navy-light: #2d2d4a;
  --color-navy-surface: #1a1a2e;

  --color-good: #2a7d4f;
  --color-good-bg: #edf7f0;
  --color-bad: #c44b3f;
  --color-bad-bg: #fdf0ee;
  --color-warn: #b9791f;
  --color-warn-bg: #fbf1e0;

  --shadow-sm: 0 1px 3px rgba(20, 20, 31, 0.06);
  --shadow-md: 0 4px 16px rgba(20, 20, 31, 0.08);
  --shadow-lg: 0 16px 48px rgba(20, 20, 31, 0.14);
}

/* --- DARK MODE --- */
[data-theme='dark'] {
  --color-bg: #0f0f16;
  --color-surface: #17171f;
  --color-surface-2: #1e1e28;
  --color-surface-offset: #1a1a24;
  --color-divider: #2a2a38;
  --color-border: #343444;

  --color-text: #e6e6ee;
  --color-text-muted: #9494a8;
  --color-text-faint: #5c5c70;
  --color-text-inverse: #14141f;

  --color-primary: #f2837a;
  --color-primary-hover: #f5988f;
  --color-primary-active: #e8564a;
  --color-primary-subtle: #2a1c1a;

  --color-navy: #e6e6ee;
  --color-navy-light: #c0c0d0;
  --color-navy-surface: #1e1e2e;

  --color-good: #5cb87a;
  --color-good-bg: #16241b;
  --color-bad: #ea7b70;
  --color-bad-bg: #2a1a18;
  --color-warn: #e0ac52;
  --color-warn-bg: #2a2216;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.55);
}

/* Light mode is the deployed default for every visitor, regardless of OS/browser
   color-scheme preference. Dark mode only ever activates via the explicit
   theme-toggle button in the header (see the inline script), which sets
   data-theme="dark" on <html> and remembers the choice in localStorage. */

/* --- LAYOUT PRIMITIVES --- */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.container-narrow {
  max-width: var(--content-narrow);
}
.container-default {
  max-width: var(--content-default);
}

section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-12);
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-top: var(--space-3);
}
.section-head p {
  color: var(--color-text-muted);
  margin-top: var(--space-3);
  font-size: var(--text-base);
}
.section-head.center {
  margin-inline: auto;
  text-align: center;
}

/* --- HEADER --- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
  transition:
    transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.header--hidden {
  transform: translateY(-100%);
}
.header--scrolled {
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-6);
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.logo svg {
  flex-shrink: 0;
}
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
}
.nav-link:hover {
  color: var(--color-text);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
}
.theme-toggle:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}
.mobile-nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

@media (max-width: 860px) {
  .nav {
    display: none;
  }
  .header-actions .btn {
    display: none;
  }
  .mobile-nav-toggle {
    display: flex;
    flex-shrink: 0;
  }
}

.form-status {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: var(--space-4);
}
.form-status[data-variant="error"] {
  background: var(--color-bad-bg);
  color: var(--color-bad);
}
.form-status[data-variant="success"] {
  background: var(--color-good-bg);
  color: var(--color-good);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: 0 0 var(--space-5);
}
.mobile-nav.is-open {
  display: flex;
}
.mobile-nav-link {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
}
.mobile-nav-link:hover,
.mobile-nav-link:active {
  background: var(--color-surface-2);
}
.mobile-nav-cta {
  margin: var(--space-2) var(--space-4) 0;
}

@media (min-width: 861px) {
  .mobile-nav {
    display: none !important;
  }
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
}
.btn-primary:active {
  background: var(--color-primary-active);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-surface-2);
  border-color: var(--color-text-faint);
}
.btn-dark {
  background: var(--color-navy-surface);
  color: #fff;
}
.btn-dark:hover {
  background: var(--color-navy-light);
  color: var(--color-navy-surface);
}
.btn-block {
  width: 100%;
}
.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* --- HERO --- */
.hero {
  position: relative;
  padding-block: clamp(var(--space-16), 10vw, var(--space-24)) clamp(var(--space-16), 6vw, var(--space-20));
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 720px;
  background: radial-gradient(60% 60% at 30% 20%, color-mix(in oklab, var(--color-primary) 14%, transparent), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-16);
  align-items: center;
}
.hero-content {
  max-width: 620px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: var(--color-bad-bg);
  color: var(--color-bad);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}
.hero-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-bad);
  animation: pulse-dot 1.8s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.04;
  color: var(--color-text);
}
.hero h1 em {
  font-style: normal;
  color: var(--color-primary);
}
.hero-founder-note {
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  font-style: italic;
  color: var(--color-primary);
  max-width: 54ch;
  line-height: 1.5;
}
.hero-sub {
  margin-top: var(--space-6);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 54ch;
}
.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-8);
}
.hero-microcopy {
  margin-top: var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* --- HERO VISUAL: comparison cards --- */
.hero-visual {
  position: relative;
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-6);
}
.hero-card {
  position: relative;
  width: 300px;
  flex-shrink: 0;
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-lg);
}
.hero-card-risk {
  z-index: 1;
}
.hero-card-safe {
  z-index: 2;
  margin-top: var(--space-8);
}
.card-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-4);
}
.card-badge-old {
  background: var(--color-bad-bg);
  color: var(--color-bad);
}
.card-badge-new {
  background: var(--color-good-bg);
  color: var(--color-good);
}
.risk-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.risk-row:first-of-type {
  border-top: none;
}
.risk-row svg {
  flex-shrink: 0;
  color: var(--color-bad);
}
.safe-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.safe-row:first-of-type {
  border-top: none;
}
.safe-row svg {
  flex-shrink: 0;
  color: var(--color-good);
}
.safe-timer {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-surface-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.safe-timer strong {
  color: var(--color-good);
  font-family: var(--font-body);
}

@media (max-width: 980px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    margin-top: var(--space-8);
  }
  .hero-card {
    width: min(300px, 82vw);
  }
  .hero-card-safe {
    margin-top: 0;
  }
}

/* --- STAT STRIP --- */
.stat-strip {
  padding-block: var(--space-10);
  border-block: 1px solid var(--color-divider);
  background: var(--color-surface-2);
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}
.stat-item {
  text-align: center;
}
.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}
.stat-label {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
@media (max-width: 860px) {
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8) var(--space-6);
  }
}

/* --- PROBLEM SECTION --- */
.problem-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}
.problem-copy p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  font-size: var(--text-base);
}
.problem-copy p:last-child {
  margin-bottom: 0;
}
.callout {
  margin-top: var(--space-6);
  padding: var(--space-5) var(--space-6);
  border-left: 3px solid var(--color-primary);
  background: var(--color-primary-subtle);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.data-cards {
  display: grid;
  gap: var(--space-4);
}
.data-card {
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-sm);
}
.data-card-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}
.data-card-figure {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-navy-surface);
}
[data-theme='dark'] .data-card-figure {
  color: var(--color-text);
}
.data-card-body {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.data-card-source {
  display: block;
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.data-card-source a {
  color: var(--color-text-faint);
  text-decoration: underline;
}
.data-card-source a:hover {
  color: var(--color-primary);
}
@media (max-width: 980px) {
  .problem-layout {
    grid-template-columns: 1fr;
  }
}

/* --- COMPARE SECTION --- */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}
.compare-card {
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  border: 1px solid var(--color-divider);
}
.compare-card-old {
  background: var(--color-bad-bg);
  border-color: color-mix(in oklab, var(--color-bad) 30%, var(--color-divider));
}
.compare-card-new {
  background: var(--color-navy-surface);
  color: var(--color-on-navy);
  border-color: var(--color-navy-surface);
}
.compare-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-5);
}
.compare-card-old h3 {
  color: var(--color-bad);
}
.compare-list {
  display: grid;
  gap: var(--space-3);
}
.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
}
.compare-card-old li {
  color: color-mix(in oklab, var(--color-text) 82%, var(--color-bad) 18%);
}
.compare-card-new li {
  color: color-mix(in oklab, var(--color-on-navy) 90%, transparent);
}
.compare-list svg {
  flex-shrink: 0;
  margin-top: 2px;
}
@media (max-width: 860px) {
  .compare-grid {
    grid-template-columns: 1fr;
  }
}

/* --- HOW IT WORKS --- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.step-card {
  position: relative;
  padding: var(--space-8) var(--space-6) var(--space-6);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
}
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  margin-bottom: var(--space-5);
}
.step-card h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
}
.step-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
@media (max-width: 980px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

/* --- TIMELINE (escalation) --- */
.timeline {
  position: relative;
  padding-left: var(--space-8);
  border-left: 2px solid var(--color-divider);
  display: grid;
  gap: var(--space-8);
}
.timeline-item {
  position: relative;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-8) - 5px);
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-bg);
}
.timeline-time {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-primary);
}
.timeline-item h4 {
  margin-top: var(--space-1);
  font-size: var(--text-base);
  font-weight: 700;
}
.timeline-item p {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --- TRUST / VERIFY SECTION --- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.trust-card {
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
}
.trust-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}
.trust-card h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.trust-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
@media (max-width: 860px) {
  .trust-grid {
    grid-template-columns: 1fr;
  }
}

/* --- CTA BAND --- */
.cta-band {
  border-radius: var(--radius-2xl);
  background: var(--color-navy-surface);
  color: var(--color-on-navy);
  padding: clamp(var(--space-12), 6vw, var(--space-20));
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(50% 80% at 80% 0%, color-mix(in oklab, var(--color-primary) 35%, transparent), transparent 70%);
  pointer-events: none;
}
.cta-band h2 {
  position: relative;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  max-width: 20ch;
  margin-inline: auto;
}
.cta-band p {
  position: relative;
  margin-top: var(--space-4);
  color: var(--color-on-navy-muted);
  max-width: 48ch;
  margin-inline: auto;
  font-size: var(--text-base);
}
.cta-band .hero-cta-row {
  position: relative;
  justify-content: center;
  margin-top: var(--space-8);
}

/* --- FOOTER --- */
.footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-16) var(--space-10);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-10);
}
.footer-brand p {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 32ch;
}
.footer-col h4 {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}
.footer-col a,
.footer-col li {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  margin-bottom: var(--space-3);
}
.footer-col a:hover {
  color: var(--color-text);
}
.footer-legal {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
}
.footer-legal p {
  font-size: 11px;
  line-height: 1.6;
  color: var(--color-text-faint);
  max-width: 100ch;
}
.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
@media (max-width: 860px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

/* --- SOURCES / CITATIONS SECTION --- */
.sources-list {
  columns: 2;
  column-gap: var(--space-10);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.sources-list li {
  margin-bottom: var(--space-2);
  break-inside: avoid;
}
.sources-list a {
  color: var(--color-text-faint);
  text-decoration: underline;
}
.sources-list a:hover {
  color: var(--color-primary);
}
@media (max-width: 700px) {
  .sources-list {
    columns: 1;
  }
}

/* ============================================================
   SIGN-UP PAGE
   ============================================================ */
.auth-shell {
  min-height: calc(100dvh - 72px);
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.auth-side {
  background: var(--color-navy-surface);
  color: var(--color-on-navy);
  padding: clamp(var(--space-12), 6vw, var(--space-20));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.auth-side::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 60% at 20% 90%, color-mix(in oklab, var(--color-primary) 30%, transparent), transparent 70%);
  pointer-events: none;
}
.auth-side-top {
  position: relative;
  z-index: 1;
}
.auth-side-top h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-top: var(--space-6);
  max-width: 20ch;
}
.auth-side-top p {
  margin-top: var(--space-4);
  color: var(--color-on-navy-muted);
  max-width: 36ch;
  font-size: var(--text-sm);
}
.auth-side-steps {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-10);
}
.auth-side-step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: color-mix(in oklab, var(--color-on-navy) 88%, transparent);
}
.auth-side-step svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-primary);
}
.auth-side-quote {
  position: relative;
  z-index: 1;
  font-size: var(--text-xs);
  color: var(--color-on-navy-faint);
}

.auth-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(var(--space-10), 6vw, var(--space-20)) var(--space-6);
}
.auth-form-wrap {
  width: 100%;
  max-width: 420px;
}
.auth-form-wrap .eyebrow {
  margin-bottom: var(--space-3);
}
.auth-form-wrap h1 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
}
.auth-form-wrap .auth-sub {
  margin-top: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-8);
}

.form-group {
  margin-bottom: var(--space-5);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}
.input-wrap {
  position: relative;
}
.input-wrap svg {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-faint);
  pointer-events: none;
}
input[type='text'],
input[type='email'],
input[type='tel'],
input[type='password'] {
  width: 100%;
  height: 48px;
  padding-inline: var(--space-4);
  padding-left: var(--space-10);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--text-sm);
  color: var(--color-text);
}
input::placeholder {
  color: var(--color-text-faint);
}
input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-primary) 18%, transparent);
  outline: none;
}
.field-hint {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-top: var(--space-6);
  margin-bottom: var(--space-6);
}
.checkbox-row input[type='checkbox'] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}
.checkbox-row label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 400;
  margin: 0;
}
.checkbox-row a {
  color: var(--color-primary);
  text-decoration: underline;
}
.divider-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-block: var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.divider-row::before,
.divider-row::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-divider);
}
.form-section-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-faint);
  margin-block: var(--space-8) var(--space-4);
}
.form-section-label svg {
  color: var(--color-primary);
}
.auth-footer-note {
  margin-top: var(--space-8);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.auth-footer-note a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

@media (max-width: 980px) {
  .auth-shell {
    grid-template-columns: 1fr;
  }
  .auth-side {
    display: none;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}
