/* style.css — The Arc Cloud — design tokens + components */

:root,
[data-theme='light'] {
  /* Surfaces — warm lakefront sand */
  --color-bg: #f6f4ee;
  --color-surface: #ffffff;
  --color-surface-2: #fbf9f3;
  --color-surface-offset: #eeebe1;
  --color-surface-dynamic: #e4e0d3;
  --color-divider: #ddd8c9;
  --color-border: #d6d1c0;

  /* Text — deep teal-charcoal */
  --color-text: #172423;
  --color-text-muted: #5b6664;
  --color-text-faint: #9aa19f;
  --color-text-inverse: #f6f4ee;

  /* Primary accent — Arc Teal (brand-consistent) */
  --color-primary: #01696f;
  --color-primary-hover: #0c4e54;
  --color-primary-active: #0f3638;
  --color-primary-highlight: #cedcd8;

  /* Secondary accent — Terra (waterfront sunset warmth, CTA emphasis) */
  --color-terra: #a84b2f;
  --color-terra-hover: #8a3c25;
  --color-terra-highlight: #edd9d0;

  --color-success: #437a22;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

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

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 190 / 0.06);
  --shadow-md: 0 8px 24px oklch(0.2 0.02 190 / 0.1);
  --shadow-lg: 0 20px 48px oklch(0.2 0.02 190 / 0.16);

  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  --font-display: 'Cabinet Grotesk', 'Georgia', serif;
  --font-body: 'Satoshi', 'Helvetica Neue', sans-serif;
}

[data-theme='dark'] {
  --color-bg: #0f1817;
  --color-surface: #15201f;
  --color-surface-2: #182524;
  --color-surface-offset: #1c2928;
  --color-surface-dynamic: #24312f;
  --color-divider: #263332;
  --color-border: #33403e;

  --color-text: #e7e5db;
  --color-text-muted: #9aa19f;
  --color-text-faint: #66716f;
  --color-text-inverse: #14201f;

  --color-primary: #56a3ab;
  --color-primary-hover: #7bb9c0;
  --color-primary-active: #94c6cc;
  --color-primary-highlight: #253736;

  --color-terra: #d98b6c;
  --color-terra-hover: #e5a488;
  --color-terra-highlight: #3a2a24;

  --color-success: #6daa45;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 8px 24px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 20px 48px oklch(0 0 0 / 0.45);
}

/* Type scale */
:root {
  --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);
  --text-hero: clamp(2.75rem, 0.5rem + 6.5vw, 6.5rem);

  --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;
}

/* Layout helpers */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.container--narrow {
  max-width: var(--content-default);
}
section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--transition-interactive),
    transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.header--scrolled {
  border-color: var(--color-border);
}
.header--hidden {
  transform: translateY(-100%);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
}
.brand svg {
  width: 34px;
  height: 34px;
  color: var(--color-primary);
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  letter-spacing: 0.01em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
}
.nav-links a:hover {
  color: var(--color-primary);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}
.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.theme-toggle svg {
  width: 18px;
  height: 18px;
}
.nav-mobile-toggle {
  display: none;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}
.nav-mobile-toggle svg {
  width: 22px;
  height: 22px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Hero */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  padding-block: var(--space-24) var(--space-16);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-skyline {
  width: 100%;
  height: 100%;
  display: block;
}
.hero-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    color-mix(in oklab, #071312 25%, transparent) 0%,
    color-mix(in oklab, #071312 10%, transparent) 45%,
    color-mix(in oklab, #071312 75%, transparent) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  color: #f6f4ee;
  max-width: 900px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #d7e6e4;
  background: color-mix(in oklab, #01696f 45%, transparent);
  border: 1px solid color-mix(in oklab, #ffffff 25%, transparent);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}
.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-6);
}
.hero-title em {
  font-style: normal;
  color: #8fd0d1;
}
.hero-sub {
  font-size: var(--text-lg);
  color: #dfe3de;
  max-width: 62ch;
  margin-bottom: var(--space-8);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.hero-actions .btn-ghost {
  color: #f6f4ee;
  border-color: color-mix(in oklab, #ffffff 35%, transparent);
}
.hero-actions .btn-ghost:hover {
  border-color: #8fd0d1;
  color: #8fd0d1;
}
.hero-scroll-cue {
  position: absolute;
  bottom: var(--space-8);
  right: var(--space-6);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: #dfe3de;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero-scroll-cue svg {
  width: 16px;
  height: 16px;
  animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(6px);
  }
}

/* Section headers */
.eyebrow {
  display: block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-6);
  max-width: 20ch;
}
.section-lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 68ch;
  margin-bottom: var(--space-4);
}

/* Overview */
.overview-intro {
  max-width: 68ch;
  margin-bottom: var(--space-10);
}
.masterplan-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-6);
}
.masterplan-figure img {
  width: 100%;
}
.overview-caption {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}
.overview-copy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
}
.overview-copy-grid p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
}
.stat-value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums lining-nums;
  margin-bottom: var(--space-2);
}
.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Impact grid */
.impact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}
.impact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
}
.impact-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  color: var(--color-primary-hover);
  margin-bottom: var(--space-5);
}
[data-theme='dark'] .impact-icon {
  color: var(--color-primary);
}
.impact-icon svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}
.impact-support {
  max-width: 74ch;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  margin-bottom: var(--space-5);
}
.impact-support p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
}
.impact-disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: 74ch;
}

/* Program grid */
.program-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.program-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.program-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  color: var(--color-primary-hover);
}
[data-theme='dark'] .program-icon {
  color: var(--color-primary);
}
.program-icon svg {
  width: 24px;
  height: 24px;
}
.program-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
}
.program-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Audience / partner cards */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.audience-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.audience-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  color: var(--color-primary-hover);
  margin-bottom: var(--space-2);
}
[data-theme='dark'] .audience-icon {
  color: var(--color-primary);
}
.audience-icon svg {
  width: 22px;
  height: 22px;
}
.audience-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
}
.audience-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  flex-grow: 1;
}
.audience-card a {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
}
.audience-card a:hover {
  color: var(--color-primary-hover);
}

/* FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4) var(--space-10);
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-5);
}
.faq-item h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.faq-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Location split */
.location-split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-16);
  align-items: center;
}
.location-graphic {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  aspect-ratio: 1;
}
.location-graphic svg {
  width: 100%;
  height: 100%;
}
.location-list {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.location-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--text-base);
  color: var(--color-text-muted);
}
.location-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 0.2em;
}
.location-item strong {
  color: var(--color-text);
}

/* Status / timeline */
.status-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-success);
  background: color-mix(in oklab, var(--color-success) 14%, transparent);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}
.status-badge::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
}
.status-panel h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-3);
}
.status-panel p {
  color: var(--color-text-muted);
}
.timeline {
  display: grid;
  gap: var(--space-5);
}
.timeline-item {
  display: flex;
  gap: var(--space-4);
}
.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-top: 0.35em;
  flex-shrink: 0;
  background: var(--color-border);
}
.timeline-item.is-active .timeline-dot {
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-highlight);
}
.timeline-item h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.2em;
}
.timeline-item p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* CTA / Contact */
.cta-section {
  background: linear-gradient(160deg, var(--color-primary-active), var(--color-primary-hover));
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-12), 6vw, var(--space-20));
  color: #f6f4ee;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-12);
  align-items: center;
}
[data-theme='dark'] .cta-section {
  background: linear-gradient(160deg, #0c2c2e, #163f42);
}
.cta-section h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  margin-bottom: var(--space-4);
}
.cta-section p {
  color: #dbe7e5;
  margin-bottom: var(--space-6);
  max-width: 52ch;
}
.cta-panel {
  background: color-mix(in oklab, #ffffff 8%, transparent);
  border: 1px solid color-mix(in oklab, #ffffff 20%, transparent);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.cta-panel-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-block: var(--space-3);
  border-bottom: 1px solid color-mix(in oklab, #ffffff 15%, transparent);
  font-size: var(--text-sm);
}
.cta-panel-row:last-child {
  border-bottom: none;
}
.cta-panel-row svg {
  width: 18px;
  height: 18px;
  color: #8fd0d1;
  flex-shrink: 0;
}
.cta-panel-row a {
  color: #f6f4ee;
  text-decoration: none;
  font-weight: 600;
}
.cta-panel-row a:hover {
  color: #8fd0d1;
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-10);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.footer-brand svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}
.footer-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: 60ch;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
  .location-split {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  .overview-copy-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .location-split {
    display: flex;
    flex-direction: column-reverse;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .program-grid {
    grid-template-columns: 1fr;
  }
  .impact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .audience-grid {
    grid-template-columns: 1fr;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .status-panel,
  .cta-section {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
  .nav-mobile-toggle {
    display: inline-flex;
  }
}
@media (max-width: 560px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .impact-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    align-items: flex-end;
    min-height: 100vh;
  }
}

/* Mobile nav drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.mobile-drawer.is-open {
  transform: translateX(0);
}
.mobile-drawer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-10);
}
.mobile-drawer a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  text-decoration: none;
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.mobile-drawer-close svg {
  width: 24px;
  height: 24px;
  color: var(--color-text);
}