/* style.css — Gigover Property Intelligence Platform design system */

/* ---------- 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(1.75rem, 1.2rem + 1.6vw, 2.75rem);
  --text-3xl: clamp(2rem, 1.3rem + 2vw, 3.25rem);
  --text-hero: clamp(2.25rem, 1.4rem + 2.4vw, 3.5rem);

  /* ---------- 4px 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: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  /* ---------- Transitions ---------- */
  --transition-interactive: 160ms cubic-bezier(0.16, 1, 0.3, 1);

  /* ---------- Content widths ---------- */
  --content-narrow: 640px;
  --content-default: 1080px;
  --content-wide: 1280px;
  --content-full: 100%;

  /* ---------- Fonts ---------- */
  --font-display: 'Cabinet Grotesk', 'General Sans', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', 'Helvetica Neue', sans-serif;
}

/* ---------- Gigover Brand Palette — Black / White / Yellow ---------- */
:root,
[data-theme='light'] {
  /* Surfaces */
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-surface-2: #fafafa;
  --color-surface-offset: #f4f4f2;
  --color-surface-offset-2: #ececea;
  --color-surface-dynamic: #e4e3e0;
  --color-divider: #e6e5e2;
  --color-border: #d8d7d3;

  /* Ink (near-black, not pure #000 for warmth) */
  --color-ink: #111110;
  --color-text: #16150f;
  --color-text-muted: #5c5b54;
  --color-text-faint: #9a9891;
  --color-text-inverse: #ffffff;

  /* Primary accent — Gigover Yellow */
  --color-primary: #f4c500;
  --color-primary-hover: #d9af00;
  --color-primary-active: #b89200;
  --color-primary-highlight: #fdf1bd;
  --color-on-primary: #16150f;

  /* Dark surface for contrast bands */
  --color-dark: #111110;
  --color-dark-2: #1c1b17;
  --color-on-dark: #f7f6f2;
  --color-on-dark-muted: #a8a69d;

  /* Semantic */
  --color-warning: #a15b00;
  --color-warning-highlight: #f6e3c6;
  --color-error: #b3261e;
  --color-error-highlight: #f6d9d6;
  --color-success: #2f6d3c;
  --color-success-highlight: #dcebdd;
  --color-blue: #1d4ed8;
  --color-blue-highlight: #dbe6fb;

  --shadow-sm: 0 1px 2px oklch(0.15 0.01 90 / 0.06);
  --shadow-md: 0 6px 18px oklch(0.15 0.01 90 / 0.10);
  --shadow-lg: 0 16px 44px oklch(0.15 0.01 90 / 0.16);
}

[data-theme='dark'] {
  --color-bg: #0e0d0c;
  --color-surface: #151412;
  --color-surface-2: #1a1917;
  --color-surface-offset: #1e1d1a;
  --color-surface-offset-2: #24231f;
  --color-surface-dynamic: #2b2a25;
  --color-divider: #292824;
  --color-border: #37362f;

  --color-ink: #f7f6f2;
  --color-text: #f0efe9;
  --color-text-muted: #a8a69d;
  --color-text-faint: #6f6e66;
  --color-text-inverse: #16150f;

  --color-primary: #f4c500;
  --color-primary-hover: #ffd733;
  --color-primary-active: #ffe066;
  --color-primary-highlight: #3a3116;
  --color-on-primary: #16150f;

  --color-dark: #000000;
  --color-dark-2: #0a0a08;
  --color-on-dark: #f7f6f2;
  --color-on-dark-muted: #a8a69d;

  --color-warning: #e0a344;
  --color-warning-highlight: #3a3020;
  --color-error: #e0685f;
  --color-error-highlight: #3a2422;
  --color-success: #6bbf7c;
  --color-success-highlight: #203323;
  --color-blue: #6f9bf0;
  --color-blue-highlight: #1c2740;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.4);
  --shadow-md: 0 6px 18px oklch(0 0 0 / 0.45);
  --shadow-lg: 0 20px 50px oklch(0 0 0 / 0.55);
}

/* ---------- Layout Primitives ---------- */
.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container--wide {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container--narrow {
  max-width: var(--content-narrow);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}
section.section--tight {
  padding-block: clamp(var(--space-10), 5vw, var(--space-16));
}

.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-text);
  background: var(--color-primary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}
.eyebrow--outline {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}
.eyebrow--dark {
  background: var(--color-primary);
  color: var(--color-ink);
}

h1,
.h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-hero);
  letter-spacing: -0.02em;
}
h2,
.h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-2xl);
  letter-spacing: -0.015em;
}
h3,
.h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  letter-spacing: -0.01em;
}
h4,
.h4 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-lg);
}

p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
}
.lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 46ch;
}

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

/* ---------- Article / prose typography (blog, legal pages) ---------- */
.prose p {
  margin-top: var(--space-5);
  line-height: 1.7;
  max-width: 68ch;
}
.prose h3 {
  margin-top: var(--space-10);
}
.prose ul {
  margin-top: var(--space-5);
  padding-left: 1.25rem;
  max-width: 68ch;
}
.prose li {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.7;
  margin-top: var(--space-2);
}
.prose a,
.container--narrow p a {
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-color: var(--color-primary);
  text-decoration-thickness: 2px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  min-height: 44px;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
}
.btn-dark {
  background: var(--color-ink);
  color: var(--color-text-inverse);
}
[data-theme='dark'] .btn-dark {
  background: var(--color-on-dark);
  color: var(--color-text-inverse);
}
.btn-dark:hover {
  background: var(--color-text-muted);
}
.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-outline:hover {
  border-color: var(--color-ink);
  background: var(--color-surface-offset);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  padding-inline: var(--space-3);
}
.btn-ghost:hover {
  background: var(--color-surface-offset);
}
.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-divider);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-3);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  flex-shrink: 0;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex: 1;
  justify-content: center;
}
.nav__link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-2) 0;
}
.nav__link:hover {
  color: var(--color-text-muted);
}
.nav__dropdown-wrap {
  position: relative;
}
.nav__dropdown {
  position: absolute;
  top: calc(100% + var(--space-3));
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-3);
  min-width: 260px;
  display: none;
  flex-direction: column;
  gap: var(--space-1);
}
.nav__dropdown-wrap:hover .nav__dropdown,
.nav__dropdown-wrap:focus-within .nav__dropdown {
  display: flex;
}
.nav__dropdown a {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
}
.nav__dropdown a:hover {
  background: var(--color-surface-offset);
}
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.nav__toggle {
  display: none;
}

@media (max-width: 900px) {
  .nav__links {
    display: none;
  }
  .nav__actions .btn-outline,
  .nav__actions .btn-primary,
  .nav__actions .btn-ghost {
    display: none;
  }
  .nav__toggle {
    display: inline-flex;
  }
  .nav {
    padding-block: var(--space-2);
  }
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  color: var(--color-on-dark);
  padding-block: var(--space-16) var(--space-8);
}
.site-footer a {
  color: var(--color-on-dark-muted);
  font-size: var(--text-sm);
}
.site-footer a:hover {
  color: var(--color-on-dark);
}
.site-footer h5 {
  color: var(--color-on-dark);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  margin-bottom: var(--space-4);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid oklch(from var(--color-on-dark) l c h / 0.12);
}
.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer__social {
  display: flex;
  gap: var(--space-4);
}
.footer__social a {
  color: var(--color-on-dark-muted);
}

@media (max-width: 900px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8) var(--space-6);
  }
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.card--elevated {
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

/* ---------- Product Visual Frame (browser chrome mockup) ---------- */
.browser-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface-2);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-lg);
}
.browser-frame__bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-offset);
  border-bottom: 1px solid var(--color-divider);
}
.browser-frame__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
}
.browser-frame img {
  width: 100%;
  display: block;
}

/* ---------- Utility ---------- */
.text-center {
  text-align: center;
}
.stack {
  display: flex;
  flex-direction: column;
}
.cluster {
  display: flex;
  align-items: center;
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}
.grid-2--hero {
  grid-template-columns: 1.05fr 1fr;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
@media (max-width: 900px) {
  .grid-2,
  .grid-2--hero,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-surface-offset);
  color: var(--color-text-muted);
}
.badge--dot::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--space-2) var(--space-4);
  z-index: 200;
}
.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

[data-theme-toggle] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text);
}
[data-theme-toggle]:hover {
  background: var(--color-surface-offset);
}

/* ---------- Mobile nav ---------- */
.mobile-nav {
  position: fixed;
  top: 57px;
  left: 0;
  right: 0;
  height: calc(100dvh - 57px);
  background: var(--color-bg);
  z-index: 90;
  display: none;
  flex-direction: column;
  padding: var(--space-6) var(--space-5);
  gap: var(--space-2);
  overflow-y: auto;
}
.mobile-nav.is-open {
  display: flex;
}
.mobile-nav a {
  padding: var(--space-3) var(--space-2);
  font-size: var(--text-base);
  font-weight: 500;
  border-bottom: 1px solid var(--color-divider);
}
.mobile-nav__group-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-faint);
  font-weight: 700;
  padding: var(--space-4) var(--space-2) var(--space-1);
}
.mobile-nav__ctas {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.nav__toggle {
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
}
.nav__toggle:hover {
  background: var(--color-surface-offset);
}

/* ---------- Scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 700ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}