/* ═══════════════════════════════════════════════════════════
   A1NVESTMENTS — styles.css
   Design system: institutional-minimal, editorial, premium
   Fonts: Cormorant Garamond (display) + DM Sans (UI/body)
═══════════════════════════════════════════════════════════ */

/* ─── Design Tokens ───────────────────────────────────── */
:root {
  /* Spacing rhythm: 4px base */
  --sp-1:  4px;
  --sp-2:  8px;
  --sp-3:  12px;
  --sp-4:  16px;
  --sp-5:  20px;
  --sp-6:  24px;
  --sp-8:  32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;
  --sp-24: 96px;
  --sp-32: 128px;

  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --text-xs:   0.6875rem;   /* 11px */
  --text-sm:   0.8125rem;   /* 13px */
  --text-base: 0.9375rem;   /* 15px */
  --text-md:   1.0625rem;   /* 17px */
  --text-lg:   1.25rem;     /* 20px */
  --text-xl:   1.5rem;      /* 24px */
  --text-2xl:  2rem;        /* 32px */
  --text-3xl:  2.75rem;     /* 44px */
  --text-4xl:  3.75rem;     /* 60px */
  --text-5xl:  5rem;        /* 80px */

  --leading-tight:  1.1;
  --leading-snug:   1.3;
  --leading-normal: 1.6;
  --leading-loose:  1.8;

  --tracking-tight:  -0.03em;
  --tracking-snug:   -0.015em;
  --tracking-wide:   0.08em;
  --tracking-wider:  0.14em;

  /* Border radius */
  --radius-sm:  2px;
  --radius-md:  4px;
  --radius-lg:  8px;

  /* Transitions */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out:    cubic-bezier(0, 0, 0.2, 1);
  --duration-fast:   150ms;
  --duration-base:   250ms;
  --duration-slow:   400ms;
  --duration-slower: 700ms;

  /* Layout */
  --container-max: 1240px;
  --container-padding: var(--sp-6);
  --header-height: 68px;
}

/* ─── Color Tokens: Dark Mode (default) ──────────────── */
[data-theme="dark"] {
  --color-bg:          #0c0c0b;
  --color-bg-raised:   #111110;
  --color-bg-subtle:   #161614;
  --color-bg-muted:    #1c1c1a;
  --color-border:      rgba(255,255,255,0.08);
  --color-border-subtle: rgba(255,255,255,0.04);

  --color-text-primary:   #f0ede8;
  --color-text-secondary: rgba(240,237,232,0.6);
  --color-text-tertiary:  rgba(240,237,232,0.35);

  /* Single refined accent: warm platinum-gold */
  --color-accent:         #c9b48a;
  --color-accent-subtle:  rgba(201,180,138,0.12);
  --color-accent-muted:   rgba(201,180,138,0.06);

  --color-module-bg:      #141413;
  --color-module-border:  rgba(255,255,255,0.06);

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.6);
}

/* ─── Color Tokens: Light Mode ───────────────────────── */
[data-theme="light"] {
  --color-bg:          #f8f6f3;
  --color-bg-raised:   #ffffff;
  --color-bg-subtle:   #f2efe9;
  --color-bg-muted:    #ece8e0;
  --color-border:      rgba(0,0,0,0.08);
  --color-border-subtle: rgba(0,0,0,0.04);

  --color-text-primary:   #1a1916;
  --color-text-secondary: rgba(26,25,22,0.6);
  --color-text-tertiary:  rgba(26,25,22,0.38);

  --color-accent:         #8b6f3a;
  --color-accent-subtle:  rgba(139,111,58,0.1);
  --color-accent-muted:   rgba(139,111,58,0.05);

  --color-module-bg:      #ffffff;
  --color-module-border:  rgba(0,0,0,0.07);

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.14);
}

/* ─── Reset ───────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  transition: background-color var(--duration-base) var(--ease-smooth),
              color var(--duration-base) var(--ease-smooth);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ─── Utility ─────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-4);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 400;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-snug);
  color: var(--color-text-primary);
}

.section-header {
  margin-bottom: var(--sp-16);
}

/* ─── Reveal Animations ───────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slower) var(--ease-out),
              transform var(--duration-slower) var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1.is-visible { transition-delay: 100ms; }
.reveal--delay-2.is-visible { transition-delay: 200ms; }
.reveal--delay-3.is-visible { transition-delay: 320ms; }

/* ─── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  line-height: 1;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-smooth),
              border-color var(--duration-fast) var(--ease-smooth),
              color var(--duration-fast) var(--ease-smooth),
              opacity var(--duration-fast) var(--ease-smooth);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-accent);
  color: #0c0c0b;
  border-color: var(--color-accent);
}
.btn--primary:hover { opacity: 0.85; }

.btn--ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--color-text-tertiary);
  color: var(--color-text-primary);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn--outline:hover { background-color: var(--color-accent-subtle); }

/* ─── Header ──────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color var(--duration-base) var(--ease-smooth),
              border-color var(--duration-base) var(--ease-smooth),
              backdrop-filter var(--duration-base) var(--ease-smooth);
}

.site-header.is-scrolled {
  background-color: color-mix(in srgb, var(--color-bg) 88%, transparent);
  border-bottom-color: var(--color-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--sp-6);
}

/* Logo */
.logo {
  display: flex;
  align-items: baseline;
  gap: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  flex-shrink: 0;
}

.logo-mark {
  font-size: var(--text-xl);
}

.logo-super {
  font-size: 0.65em;
  vertical-align: super;
  color: var(--color-accent);
}

.logo-wordmark {
  margin-left: 1px;
}

.logo--small { font-size: var(--text-md); }

/* Primary Nav */
.primary-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
}

.nav-link {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-smooth);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.nav-link:hover { color: var(--color-text-primary); }
.nav-link:hover::after { transform: scaleX(1); }

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-shrink: 0;
}

/* Theme toggle */
.theme-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: border-color var(--duration-fast) var(--ease-smooth),
              color var(--duration-fast) var(--ease-smooth);
}

.theme-toggle:hover {
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.theme-icon { display: flex; }
.theme-icon--moon { display: none; }
[data-theme="light"] .theme-icon--sun { display: none; }
[data-theme="light"] .theme-icon--moon { display: flex; }

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
}

.hamburger-line {
  display: block;
  width: 16px;
  height: 1px;
  background-color: var(--color-text-secondary);
  transition: transform var(--duration-fast) var(--ease-smooth),
              opacity var(--duration-fast) var(--ease-smooth);
}

/* ─── Hero ────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--header-height);
  position: relative;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: center;
  padding-top: var(--sp-20);
  padding-bottom: var(--sp-20);
}

.hero-content {
  max-width: 600px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 5.5vw, var(--text-5xl));
  font-weight: 300;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-snug);
  color: var(--color-text-primary);
  margin-bottom: var(--sp-6);
}

.hero-headline em {
  font-style: italic;
  color: var(--color-text-secondary);
}

.hero-sub {
  font-size: var(--text-md);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
  max-width: 480px;
  margin-bottom: var(--sp-10);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

/* Hero visual */
.hero-visual {
  position: relative;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.data-grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: repeat(8, 1fr);
  gap: 1px;
  opacity: 0.35;
}

.data-cell {
  border: 1px solid var(--color-border);
  border-radius: 1px;
  background: var(--color-accent-muted);
  transition: opacity var(--duration-slow) var(--ease-smooth),
              background-color var(--duration-slow) var(--ease-smooth);
}

.data-cell.active {
  background: var(--color-accent-subtle);
  opacity: 0.7;
}

.signal-lines {
  position: absolute;
  inset: 0;
}

.signal-lines svg {
  width: 100%;
  height: 100%;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--sp-10);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollPulse 2s var(--ease-smooth) infinite;
}

@keyframes scrollPulse {
  0%   { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50%  { opacity: 1; transform: scaleY(1); transform-origin: top; }
  100% { opacity: 0; transform: scaleY(1); transform-origin: bottom; }
}

/* ─── Platform Section ────────────────────────────────── */
.platform {
  padding: var(--sp-32) 0;
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.platform-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--sp-16);
  align-items: start;
}

.platform-editorial {
  position: sticky;
  top: calc(var(--header-height) + var(--sp-8));
}

.editorial-text {
  font-family: var(--font-display);
  font-size: clamp(var(--text-lg), 2vw, var(--text-xl));
  font-weight: 300;
  line-height: var(--leading-snug);
  color: var(--color-text-secondary);
  letter-spacing: -0.01em;
}

.platform-modules {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background-color: var(--color-border-subtle);
  border: 1px solid var(--color-border-subtle);
}

.module {
  background-color: var(--color-module-bg);
  padding: var(--sp-8);
  border: none;
  transition: background-color var(--duration-base) var(--ease-smooth);
}

.module:hover { background-color: var(--color-bg-muted); }

.module--large {
  grid-column: 1 / -1;
  border-bottom: 1px solid var(--color-border-subtle);
}

.module--accent {
  background-color: var(--color-accent-muted);
}
.module--accent:hover { background-color: var(--color-accent-subtle); }

.module-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  color: var(--color-accent);
  margin-bottom: var(--sp-4);
}

.module-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: var(--tracking-snug);
  margin-bottom: var(--sp-3);
  color: var(--color-text-primary);
}

.module--large .module-title {
  font-size: var(--text-xl);
}

.module-desc {
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
}

/* ─── Philosophy Section ──────────────────────────────── */
.philosophy {
  padding: var(--sp-32) 0;
}

.manifesto {
  margin-bottom: var(--sp-16);
  padding: var(--sp-12) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.manifesto-quote {
  max-width: 820px;
}

.manifesto-quote p {
  font-family: var(--font-display);
  font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
  font-weight: 300;
  font-style: italic;
  line-height: var(--leading-snug);
  letter-spacing: -0.01em;
  color: var(--color-text-secondary);
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-10) var(--sp-12);
}

.principle {
  padding-top: var(--sp-6);
  border-top: 1px solid var(--color-border-subtle);
}

.principle-marker {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-accent);
  margin-bottom: var(--sp-3);
}

.principle-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: var(--tracking-snug);
  margin-bottom: var(--sp-3);
  color: var(--color-text-primary);
}

.principle-text {
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
}

/* ─── Why Now Section ─────────────────────────────────── */
.why-now {
  padding: var(--sp-32) 0;
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.why-now-inner {}

.why-now-header {
  margin-bottom: var(--sp-16);
}

.why-now-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: start;
}

.why-now-text p {
  font-size: var(--text-md);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
  margin-bottom: var(--sp-5);
}

.why-now-text p:last-child { margin-bottom: 0; }

.why-now-factors {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
}

.factor {
  padding: var(--sp-6);
  background-color: var(--color-module-bg);
  border: 1px solid var(--color-module-border);
  border-radius: var(--radius-md);
}

.factor-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-2);
}

.factor-desc {
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
}

/* ─── Edge Section ────────────────────────────────────── */
.edge {
  padding: var(--sp-32) 0;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background-color: var(--color-border-subtle);
  border: 1px solid var(--color-border-subtle);
  margin-bottom: var(--sp-16);
}

.stat {
  background-color: var(--color-module-bg);
  padding: var(--sp-10) var(--sp-8);
}

.stat-value {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 300;
  line-height: 1;
  color: var(--color-text-primary);
  letter-spacing: var(--tracking-snug);
  margin-bottom: var(--sp-3);
}

.stat-unit {
  font-size: 0.5em;
  color: var(--color-accent);
  font-weight: 400;
}

.stat-label {
  font-size: var(--text-xs);
  line-height: var(--leading-loose);
  color: var(--color-text-tertiary);
  max-width: 180px;
}

.edge-bands {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.edge-band {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--sp-8);
  padding: var(--sp-8) 0;
  border-bottom: 1px solid var(--color-border-subtle);
  align-items: start;
  transition: background-color var(--duration-fast) var(--ease-smooth);
}

.edge-band:first-child { border-top: 1px solid var(--color-border-subtle); }
.edge-band:hover { background-color: var(--color-bg-subtle); }

.edge-band-label {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text-primary);
  letter-spacing: var(--tracking-snug);
  padding-top: 2px;
}

.edge-band-content p {
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
  max-width: 640px;
}

/* ─── Team Section ────────────────────────────────────── */
.team {
  padding: var(--sp-32) 0;
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.team-intro {
  max-width: 640px;
  margin-bottom: var(--sp-16);
  font-size: var(--text-md);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background-color: var(--color-border-subtle);
  border: 1px solid var(--color-border-subtle);
}

.team-grid.team-grid--solo {
  grid-template-columns: 1fr;
  max-width: 440px;
}

.team-card {
  background-color: var(--color-module-bg);
  padding: var(--sp-8);
}

.avatar-placeholder {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  margin-bottom: var(--sp-6);
}

.team-card-avatar img {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center center;
  border: 1px solid var(--color-border);
  margin-bottom: var(--sp-6);
  display: block;
}

.team-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: var(--tracking-snug);
  margin-bottom: var(--sp-1);
  color: var(--color-text-primary);
  min-height: 1.4em; /* preserve space for placeholder */
}

.team-title {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-4);
}

.team-bio {
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
  min-height: 3em;
}

/* ─── Careers Section ─────────────────────────────────── */
.careers {
  padding: var(--sp-32) 0;
}

.careers-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-20);
  align-items: start;
}

.careers-desc {
  font-size: var(--text-md);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
  margin-bottom: var(--sp-8);
  max-width: 440px;
}

.careers-areas {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.careers-area {
  padding: var(--sp-6) 0;
  border-bottom: 1px solid var(--color-border-subtle);
}

.careers-area:first-child { border-top: 1px solid var(--color-border-subtle); }

.careers-area-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: var(--tracking-snug);
  color: var(--color-text-primary);
  margin-bottom: var(--sp-2);
}

.careers-area p {
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
}

/* ─── Contact Section ─────────────────────────────────── */
.contact {
  padding: var(--sp-32) 0;
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border-subtle);
}

.contact-inner {
  max-width: 720px;
}

.contact-title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 300;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-snug);
  margin-bottom: var(--sp-6);
  color: var(--color-text-primary);
}

.contact-desc {
  font-size: var(--text-md);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
  max-width: 520px;
  margin-bottom: var(--sp-12);
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-channel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-5) 0;
  border-bottom: 1px solid var(--color-border-subtle);
  transition: border-color var(--duration-fast) var(--ease-smooth);
}

.contact-channel:first-child { border-top: 1px solid var(--color-border-subtle); }
.contact-channel:hover { border-bottom-color: var(--color-accent); }

.contact-channel-label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.contact-channel-value {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  color: var(--color-text-primary);
  transition: color var(--duration-fast) var(--ease-smooth);
}

.contact-channel:hover .contact-channel-value { color: var(--color-accent); }

/* ─── Footer ──────────────────────────────────────────── */
.site-footer {
  padding: var(--sp-16) 0 var(--sp-10);
  border-top: 1px solid var(--color-border-subtle);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--sp-12);
  margin-bottom: var(--sp-12);
  padding-bottom: var(--sp-12);
  border-bottom: 1px solid var(--color-border-subtle);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-top: var(--sp-3);
}

.footer-nav {
  display: flex;
  gap: var(--sp-12);
}

.footer-nav-title {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--sp-4);
}

.footer-nav-group ul {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.footer-nav-group a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-smooth);
}

.footer-nav-group a:hover { color: var(--color-text-primary); }

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.footer-legal, .footer-disclaimer {
  font-size: var(--text-xs);
  line-height: var(--leading-loose);
  color: var(--color-text-tertiary);
}

.footer-disclaimer { max-width: 680px; }

/* ─── Mobile Navigation ───────────────────────────────── */
@media (max-width: 1024px) {
  .primary-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--sp-6) var(--container-padding) var(--sp-8);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--duration-base) var(--ease-smooth),
                opacity var(--duration-base) var(--ease-smooth);
  }

  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-5);
  }

  .mobile-menu-btn { display: flex; }

  .header-actions .btn--primary { display: none; }
}

/* ─── Responsive Breakpoints ──────────────────────────── */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-visual { display: none; }

  .platform-layout {
    grid-template-columns: 1fr;
  }
  .platform-editorial { position: static; }

  .principles-grid {
    grid-template-columns: 1fr 1fr;
  }

  .why-now-content {
    grid-template-columns: 1fr;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
  }

  .edge-band {
    grid-template-columns: 1fr;
    gap: var(--sp-3);
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .careers-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  :root {
    --container-padding: var(--sp-5);
  }

  .principles-grid {
    grid-template-columns: 1fr;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
  }

  .footer-inner {
    flex-direction: column;
  }

  .platform-modules {
    grid-template-columns: 1fr;
  }

  .module--large { grid-column: auto; }

  .contact-channel {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-1);
  }
}