/* ══════════════════════════════════════════════════════════════
   Finhanced Inc. — Shared Styles
   Used across all pages (index, gateway, commodity, legal)
   ══════════════════════════════════════════════════════════════ */

/* ── VARIABLES ── */
:root {
  --navy: #1a1a1a;
  --navy-mid: #222222;
  --navy-light: #2d2d2d;
  --gold: #7DDBC0;
  --gold-light: #9ae8d4;
  --gold-dim: rgba(125,219,192,0.12);
  --cream: #f0f7f4;
  --white: #ffffff;
  --gray-100: #f5f7f6;
  --gray-200: #e4e9e7;
  --gray-400: #8f9a95;
  --gray-600: #4f5955;
  --text-dark: #1a1a1a;
  --text-body: #3d4544;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Instrument Sans', 'Segoe UI', sans-serif;
}

/* ── RESET ── */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--text-body);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
}

/* ── UTILITY ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  width: 32px;
  height: 2px;
  background: var(--gold);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--text-dark);
  line-height: 1.2;
  margin-bottom: 20px;
}
.section-title.light { color: var(--white); }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.35s cubic-bezier(.25,.8,.25,1);
}
.btn-gold {
  background: var(--gold);
  color: var(--navy);
}
.btn-gold:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(125,219,192,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.35);
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.btn-navy {
  background: var(--navy);
  color: var(--white);
}
.btn-navy:hover {
  background: var(--navy-mid);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26,26,26,0.35);
}

/* ── HEADER / NAV ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background 0.4s, box-shadow 0.4s;
}
.site-header.scrolled {
  background: rgba(26,26,26,0.97);
  box-shadow: 0 2px 24px rgba(0,0,0,0.25);
  backdrop-filter: blur(12px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gold);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--navy);
  font-weight: 700;
}
.logo-text {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--white);
  letter-spacing: 0.02em;
}
.logo-text span { color: var(--gold); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}
.nav-links a {
  font-size: 0.84rem;
  font-weight: 500;
  white-space: nowrap;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  transition: color 0.3s;
  letter-spacing: 0.02em;
}
.nav-links a:hover,
.nav-links a.active { color: var(--gold); }
.nav-cta {
  padding: 10px 20px !important;
  white-space: nowrap !important;
  background: var(--gold);
  color: var(--navy) !important;
  border-radius: 4px;
  font-weight: 600 !important;
}
.nav-cta:hover {
  background: var(--gold-light) !important;
  color: var(--navy) !important;
}
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: 0.3s;
}

/* ── NAV DROPDOWN ── */
.nav-drop { position: relative; }
.nav-drop > a { display: flex; align-items: center; gap: 5px; }
.nav-drop > a::after {
  content: '';
  display: inline-block;
  width: 0; height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.6;
  margin-top: 1px;
}
.drop-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #1e1e1e;
  border: 1px solid rgba(125,219,192,0.18);
  border-radius: 12px;
  padding: 14px 0 10px;
  min-width: 210px;
  z-index: 9999;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}
.drop-menu a {
  display: block;
  padding: 7px 20px;
  color: #b0b0b0;
  font-size: 0.84rem;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
}
.drop-menu a:hover { color: #7DDBC0; background: rgba(125,219,192,0.07); }
.drop-label {
  padding: 8px 20px 3px;
  font-size: 0.69rem;
  color: rgba(125,219,192,0.5);
  text-transform: uppercase;
  letter-spacing: 0.09em;
}
.nav-drop:hover .drop-menu,
.nav-drop:focus-within .drop-menu { display: block; }

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 70vw;
  height: 70vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(125,219,192,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--navy), transparent);
  pointer-events: none;
}
/* ── VIDEO HERO BACKGROUND ── */
.hero-video {
  background: #0a0a0a;
}
.hero-bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0.45;
}
.hero-video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10,10,10,0.75) 0%,
    rgba(26,26,26,0.55) 50%,
    rgba(10,10,10,0.70) 100%
  );
  z-index: 1;
}
.hero-video .hero-grid,
.hero-video .container {
  position: relative;
  z-index: 2;
}
.hero-video::before {
  z-index: 2;
}
.hero-video::after {
  z-index: 2;
}
/* Hide video on mobile — show poster as bg image instead */
@media (max-width: 768px) {
  .hero-bg-video {
    display: none;
  }
  .hero-video {
    background-size: cover;
    background-position: center;
  }
  .hero-video .hero-video-overlay {
    background: rgba(10,10,10,0.7);
  }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(125,219,192,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125,219,192,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 80%);
}
.hero > .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 660px;
  flex: 1;
  padding: 140px 0 100px;
}
.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::before {
  content: '';
  width: 40px;
  height: 2px;
  background: var(--gold);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5.5vw, 4.2rem);
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 28px;
}
.hero h1 em {
  font-style: italic;
  color: var(--gold);
}
.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 580px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 32px;
  flex-shrink: 0;
}
.hero-stat {
  text-align: right;
  padding-right: 40px;
  border-right: 2px solid var(--gold);
}
.hero-stat-value {
  font-family: var(--font-display);
  font-size: 2.8rem;
  color: var(--gold);
}
.hero-stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.05em;
}

/* ── BREADCRUMB ── */
.breadcrumb {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: var(--gold);
  text-decoration: none;
}

/* ── TRUST BAR ── */
.trust-bar {
  background: var(--navy-mid);
  padding: 22px 0;
  border-top: 1px solid rgba(125,219,192,0.1);
  border-bottom: 1px solid rgba(125,219,192,0.1);
}
.trust-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.trust-item {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.03em;
}
.trust-item svg {
  width: 20px;
  height: 20px;
  fill: var(--gold);
  opacity: 0.7;
}
.trust-dot {
  width: 6px;
  height: 6px;
  min-width: 6px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.7;
}

/* ── CTA ACTIONS ── */
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── FOOTER ── */
.site-footer {
  background: var(--navy);
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.8;
  margin-top: 16px;
  max-width: 300px;
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--white);
  margin-bottom: 20px;
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}
.footer-col a:hover { color: var(--gold); }
.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.3);
  flex-wrap: wrap;
  gap: 16px;
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeUp 0.8s ease forwards;
}
.delay-1 { animation-delay: 0.15s; opacity: 0; }
.delay-2 { animation-delay: 0.3s; opacity: 0; }
.delay-3 { animation-delay: 0.45s; opacity: 0; }
.delay-4 { animation-delay: 0.6s; opacity: 0; }

/* ── SCROLL REVEAL ── */
/* Content visible by default; JS adds .reveal-ready to <html> to enable animations */
.reveal-ready .reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-ready .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-ready .reveal-child > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal-ready .reveal-child.visible > * {
  opacity: 1;
  transform: translateY(0);
}
.reveal-child.visible > *:nth-child(1) { transition-delay: 0s; }
.reveal-child.visible > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-child.visible > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-child.visible > *:nth-child(4) { transition-delay: 0.2s; }
.reveal-child.visible > *:nth-child(5) { transition-delay: 0.25s; }
.reveal-child.visible > *:nth-child(6) { transition-delay: 0.3s; }
.reveal-child.visible > *:nth-child(7) { transition-delay: 0.35s; }
.reveal-child.visible > *:nth-child(8) { transition-delay: 0.4s; }
.reveal-child.visible > *:nth-child(9) { transition-delay: 0.45s; }
@media (prefers-reduced-motion: reduce) {
  .reveal-ready .reveal, .reveal-ready .reveal-child > * {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ── BACK TO TOP ── */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 900;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--navy);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.3s;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
}
.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ── MOBILE MENU ENHANCED ── */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26,26,26,0.98);
  z-index: 998;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.mobile-overlay.open {
  display: flex;
  opacity: 1;
}
.mobile-overlay .mobile-nav-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  list-style: none;
  padding: 0;
}
.mobile-overlay .mobile-nav-links a {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--white);
  text-decoration: none;
  transition: color 0.3s;
}
.mobile-overlay .mobile-nav-links a:hover { color: var(--gold); }
.mobile-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  background: none;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.3s;
}
.mobile-close:hover { border-color: var(--gold); }
.mobile-close svg { width: 20px; height: 20px; stroke: var(--white); }

/* ── THEME TOGGLE ── */
.theme-toggle {
  background: rgba(255,255,255,0.08);
  border: 1.5px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.3s, background 0.3s;
  margin-left: -16px;
}
.theme-toggle:hover {
  border-color: var(--gold);
  background: var(--gold-dim);
}
.theme-toggle svg { width: 20px; height: 20px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

/* ── LIGHT MODE ── */
[data-theme="light"] {
  --navy: #ffffff;
  --navy-mid: #f5f7f6;
  --navy-light: #e4e9e7;
  --text-dark: #1a1a1a;
  --text-body: #3d4544;
}
[data-theme="light"] body {
  background: #f8faf9;
  color: var(--text-body);
}
[data-theme="light"] .site-header {
  background: rgba(255,255,255,0.92);
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
  backdrop-filter: blur(12px);
}
[data-theme="light"] .site-header.scrolled {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}
[data-theme="light"] .nav-links a { color: rgba(26,26,26,0.7); }
[data-theme="light"] .nav-links a:hover { color: #1a9e7a; }
[data-theme="light"] .mobile-toggle span { background: var(--text-dark); }
[data-theme="light"] .logo-text { color: var(--text-dark); }
[data-theme="light"] .hero {
  background: linear-gradient(135deg, #1a1a1a 0%, #2d3a35 100%);
}
[data-theme="light"] .hero-video {
  background-color: #0a0a0a;
}
[data-theme="light"] .trust-bar {
  background: #f0f7f4;
  border-color: rgba(125,219,192,0.2);
}
[data-theme="light"] .trust-item { color: var(--text-body); }
[data-theme="light"] .section-title { color: var(--text-dark); }
[data-theme="light"] .site-footer {
  background: #1a1a1a;
}
[data-theme="light"] .drop-menu {
  background: #ffffff;
  border-color: rgba(125,219,192,0.2);
  box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}
[data-theme="light"] .drop-menu a { color: #4f5955; }
[data-theme="light"] .drop-menu a:hover { color: #1a9e7a; background: rgba(125,219,192,0.08); }
[data-theme="light"] .drop-label { color: rgba(125,219,192,0.7); }
[data-theme="light"] .btn-outline {
  color: var(--text-dark);
  border-color: rgba(26,26,26,0.2);
}
[data-theme="light"] .btn-outline:hover {
  border-color: #1a9e7a;
  color: #1a9e7a;
}
/* btn-outline inside forced-dark sections (hero, footer, etc.) */
[data-theme="light"] .hero .btn-outline,
[data-theme="light"] .site-footer .btn-outline {
  color: #ffffff;
  border-color: rgba(255,255,255,0.3);
}
[data-theme="light"] .hero .btn-outline:hover,
[data-theme="light"] .site-footer .btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}
[data-theme="light"] .theme-toggle {
  border-color: rgba(26,26,26,0.25);
  background: rgba(26,26,26,0.05);
}
[data-theme="light"] .theme-toggle:hover {
  border-color: #1a9e7a;
}
[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }
[data-theme="light"] .mobile-overlay { background: rgba(255,255,255,0.98); }
[data-theme="light"] .mobile-overlay .mobile-nav-links a { color: var(--text-dark); }
[data-theme="light"] .mobile-close { border-color: rgba(26,26,26,0.2); }
[data-theme="light"] .mobile-close svg { stroke: var(--text-dark); }
[data-theme="light"] .back-to-top { box-shadow: 0 4px 16px rgba(0,0,0,0.1); }

/* ── LIGHT MODE: Text color overrides ── */
/* Hero — keep dark bg, so hero text stays white */
/* Body content sections — fix white-on-white */
[data-theme="light"] .section-title.light { color: var(--text-dark); }
[data-theme="light"] .hero-stat-label { color: rgba(255,255,255,0.5); } /* hero keeps dark bg */
[data-theme="light"] .breadcrumb { color: rgba(255,255,255,0.4); } /* hero keeps dark bg */
[data-theme="light"] .trust-item { color: var(--text-body); }

/* Cards & body text (these appear on light backgrounds) */
[data-theme="light"] .step-card p,
[data-theme="light"] .why-card p,
[data-theme="light"] .feature-card p,
[data-theme="light"] .about-card p,
[data-theme="light"] .corridor-card p,
[data-theme="light"] .compliance-card p,
[data-theme="light"] .advantage-item p,
[data-theme="light"] .cta-text p,
[data-theme="light"] .cta-section p,
[data-theme="light"] .form-hero p,
[data-theme="light"] .hub-intro p,
[data-theme="light"] .sblc-intro { color: var(--text-body); }

[data-theme="light"] .step-card h3,
[data-theme="light"] .why-card h3,
[data-theme="light"] .feature-card h3,
[data-theme="light"] .about-card h3,
[data-theme="light"] .cta-section h2 { color: var(--text-dark); }

/* FAQ */
[data-theme="light"] .faq-question { color: var(--text-dark); }
[data-theme="light"] .faq-answer-inner { color: var(--text-body); }
[data-theme="light"] .faq-item { background: var(--navy-mid); border-color: rgba(26,26,26,0.08); }
[data-theme="light"] .faq-toggle svg { stroke: var(--text-dark); }

/* Spec tables & token info */
[data-theme="light"] .spec-table td { color: var(--text-body); }
[data-theme="light"] .spec-table th { color: var(--text-dark); }
[data-theme="light"] .spec-table tr { border-color: rgba(26,26,26,0.08); }
[data-theme="light"] .token-info p { color: var(--text-body); }
[data-theme="light"] .spec-note { color: var(--text-body); background: rgba(125,219,192,0.08); }

/* Step cards */
[data-theme="light"] .step-card,
[data-theme="light"] .why-card,
[data-theme="light"] .feature-card,
[data-theme="light"] .about-card { background: var(--navy-mid); border-color: rgba(26,26,26,0.06); }

/* Footer stays dark — no changes needed (dark bg) */

/* Corridor / gateway */
[data-theme="light"] .corridor-arrow-label { color: var(--gray-400); }

/* Market reference */
[data-theme="light"] .market-ref-exchange { color: var(--text-body); }
[data-theme="light"] .market-ref-updated { color: var(--gray-400); }

/* Legal pages */
[data-theme="light"] .back-link { color: var(--text-body); }
[data-theme="light"] .page-hero p { color: var(--text-body); }
[data-theme="light"] .page-hero .updated { color: var(--gray-400); }

/* Buttons on light backgrounds */
[data-theme="light"] .btn-navy { background: #1a1a1a; color: #ffffff; }

/* Nav CTA */
[data-theme="light"] .nav-cta { color: var(--text-dark) !important; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .hero > .container { flex-direction: column; }
  .hero-content { max-width: 100%; }
  .hero-stats { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1080px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy);
    padding: 24px;
    gap: 20px;
  }
  .nav-links.show { display: flex; }
  .mobile-toggle { display: flex; }
  .theme-toggle { margin-left: auto; margin-right: 12px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .back-to-top { bottom: 20px; right: 20px; }
}