/* H2C hub — same tokens as Pay */
:root {
  --bg: #f7f8fa;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --line: rgba(15, 23, 42, 0.08);
  --accent: #0d9488;
  --accent-dim: rgba(13, 148, 136, 0.1);
  --accent-hover: #0f766e;
  --radius: 14px;
  --font: "Plus Jakarta Sans", system-ui, sans-serif;
  --display: "Plus Jakarta Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --header-h: 70px;
  --glow: 0 8px 30px rgba(15, 23, 42, 0.06);
  --header-scrolled: rgba(247, 248, 250, 0.9);
  --nav-hover: rgba(15, 23, 42, 0.05);
  --mobile-nav-bg: rgba(247, 248, 250, 0.98);
  --btn-ghost-hover-bg: rgba(15, 23, 42, 0.04);
}

html[data-theme="dark"] {
  --bg: #0c0e14;
  --bg-elevated: #12151c;
  --surface: #161a24;
  --text: #f0f2f5;
  --muted: #8b95a8;
  --line: rgba(255, 255, 255, 0.07);
  --accent: #4ecdc4;
  --accent-dim: rgba(78, 205, 196, 0.12);
  --accent-hover: #6dd9d2;
  --glow: 0 0 80px rgba(78, 205, 196, 0.08);
  --header-scrolled: rgba(12, 14, 20, 0.88);
  --nav-hover: rgba(255, 255, 255, 0.04);
  --mobile-nav-bg: rgba(12, 14, 20, 0.97);
  --btn-ghost-hover-bg: rgba(255, 255, 255, 0.04);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: light; }
html[data-theme="dark"] { color-scheme: dark; }
html, body { margin: 0; padding: 0; }

body {
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  background: var(--bg);
  display: flex;
  flex-direction: column;
}
.page-home {
  background:
    radial-gradient(900px 420px at 8% -10%, var(--accent-dim), transparent 60%),
    radial-gradient(700px 380px at 100% 18%, rgba(13, 148, 136, 0.06), transparent 55%),
    var(--bg);
}
html[data-theme="dark"] .page-home {
  background:
    radial-gradient(900px 480px at 6% -12%, rgba(78, 205, 196, 0.16), transparent 58%),
    radial-gradient(640px 360px at 100% 20%, rgba(78, 205, 196, 0.08), transparent 50%),
    var(--bg);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .2s, border-color .2s, backdrop-filter .2s;
}

.site-header.is-scrolled {
  background: var(--header-scrolled);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  color: var(--text);
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.1em;
  text-decoration: none;
  white-space: nowrap;
}
.brand:hover { color: var(--text); text-decoration: none; }
.brand .two { color: var(--accent); }

.header-end {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}
.site-nav a {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 8px 10px;
  border-radius: 10px;
  text-decoration: none;
}
.site-nav a:hover,
.site-nav a.is-active {
  color: var(--text);
  background: var(--nav-hover);
  text-decoration: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 10px 16px;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--accent-hover); text-decoration: none; color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn-ghost:hover { background: var(--btn-ghost-hover-bg); color: var(--text); }
.btn-nav {
  padding: 8px 14px;
  font-size: 0.82rem;
  margin-left: 8px;
  white-space: nowrap;
  box-shadow: 0 8px 20px rgba(13, 148, 136, 0.28);
}

.header-actions { display: flex; align-items: center; gap: 6px; }

.theme-toggle {
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
}
.theme-toggle svg { width: 18px; height: 18px; }
html:not([data-theme="dark"]) .icon-sun { display: none; }
html[data-theme="dark"] .icon-moon { display: none; }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 10px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

.nav-backdrop { display: none; }

main { flex: 1; width: min(1280px, calc(100% - 48px)); margin: 0 auto; padding: 20px 0 40px; }

.main-home {
  display: flex;
  flex-direction: column;
  justify-content: stretch;
  width: min(1320px, calc(100% - 40px));
  padding: 10px 0 16px;
  min-height: calc(100vh - var(--header-h) - 130px);
}

.hero { padding: 12px 0; }
.page-intro { padding: 8px 0 4px; }
.page-intro h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin: 0 0 10px;
  font-weight: 800;
}
.page-intro .lede { margin-bottom: 8px; }

.kicker {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 8px;
}
.hero h1,
.hero-copy h1 {
  font-size: clamp(2.2rem, 4.8vw, 3.55rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
  margin: 0 0 12px;
  font-weight: 800;
}
.lede { font-size: 1.05rem; color: var(--muted); max-width: 42ch; margin: 0 0 16px; line-height: 1.5; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.hero-actions .btn { padding: 12px 18px; }

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}
.hero-proof li {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
  box-shadow: var(--glow);
}

.hero-split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(18px, 2.8vw, 28px);
  align-items: stretch;
  flex: 1;
  width: 100%;
  min-height: 0;
}
.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  min-height: 100%;
  padding: 4px 0;
}
.hero-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 14px;
  min-height: 100%;
}

.hero-flow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 10px;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--glow);
}
.flow-step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
}
.flow-step i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  opacity: 0.45;
  display: inline-block;
}
.flow-step.is-live i {
  background: var(--accent);
  opacity: 1;
  box-shadow: 0 0 0 0 rgba(13, 148, 136, 0.55);
  animation: pulse-dot 1.6s ease-out infinite;
}
.flow-arrow {
  width: 28px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  position: relative;
  overflow: hidden;
}
.flow-arrow::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 40%;
  background: var(--accent);
  animation: flow-shine 1.8s linear infinite;
}
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(13, 148, 136, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(13, 148, 136, 0); }
  100% { box-shadow: 0 0 0 0 rgba(13, 148, 136, 0); }
}
@keyframes flow-shine {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(280%); }
}

.hero-bottom {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: auto;
}
.hero-stat {
  padding: 14px 14px 15px;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--glow);
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 108px;
}
.hero-stat strong {
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero-stat span {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.4;
}

.offer-card {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--glow);
  color: inherit;
  text-decoration: none;
  min-height: 0;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
  animation: card-in .55s ease both;
}
.offer-card:nth-child(2) { animation-delay: .08s; }
.offer-card:hover {
  text-decoration: none;
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(13, 148, 136, 0.14);
}
.offer-card-accent {
  background:
    radial-gradient(120% 90% at 100% 0%, var(--accent-dim), transparent 55%),
    var(--surface);
}
.offer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.offer-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--accent-dim);
  color: var(--accent);
}
.offer-icon svg { width: 22px; height: 22px; }
.offer-num {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.offer-card h2 {
  margin: 0 0 8px;
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  letter-spacing: -0.03em;
}
.offer-card > p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}
.offer-points {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 8px;
  flex: 1;
}
.offer-points li {
  position: relative;
  padding: 9px 12px 9px 30px;
  border-radius: 10px;
  background: var(--bg);
  border: 1px solid var(--line);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text);
}
.offer-points li::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateY(-50%);
}
.offer-cta {
  margin-top: auto;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--accent);
}
@keyframes card-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .flow-step.is-live i,
  .flow-arrow::after,
  .offer-card { animation: none; }
}

.service-list {
  margin-top: 12px;
  border-top: 1px solid var(--line);
}
.service-row {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 88px;
}
.service-num {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  padding-top: 4px;
}
.service-row h2 {
  margin: 0 0 6px;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}
.service-row p {
  margin: 0;
  color: var(--muted);
  max-width: 62ch;
}
.service-actions { margin-top: 12px !important; }

.main-services {
  display: flex;
  flex-direction: column;
  width: min(1320px, calc(100% - 40px));
  min-height: calc(100vh - var(--header-h) - 150px);
  padding: 12px 0 24px;
  justify-content: center;
  gap: 20px;
}
.svc-hero {
  max-width: 640px;
}
.svc-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin: 0 0 10px;
  font-weight: 800;
}
.svc-hero .lede { margin-bottom: 0; max-width: 46ch; }

.svc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  flex: 1;
  align-items: stretch;
  min-height: 0;
}
.svc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(22px, 3vw, 32px);
  box-shadow: var(--glow);
  overflow: hidden;
  scroll-margin-top: 88px;
}
.svc-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--accent);
  opacity: 0.85;
}
.svc-card-accent {
  background:
    radial-gradient(120% 80% at 100% 0%, var(--accent-dim), transparent 55%),
    var(--surface);
}
.svc-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.svc-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--accent-dim);
  color: var(--accent);
}
.svc-icon svg { width: 24px; height: 24px; }
.svc-num {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.svc-card h2 {
  margin: 0 0 10px;
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  letter-spacing: -0.03em;
}
.svc-lead {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.5;
  flex: 0 0 auto;
}
.svc-features {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
  flex: 1;
}
.svc-features li {
  position: relative;
  padding: 10px 12px 10px 36px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  font-weight: 600;
  font-size: 0.95rem;
}
.svc-features li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateY(-50%);
}
.svc-card .btn {
  align-self: flex-start;
  margin-top: auto;
}

.meaning-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 12px 0 8px;
}
.meaning-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 0;
}
.meaning-letter {
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: -0.08em;
  color: var(--accent);
  line-height: 1;
}
.meaning-item h3 { margin: 0 0 4px; font-size: 1rem; }
.meaning-item p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.muted { color: var(--muted); }

.main-about {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: min(1320px, calc(100% - 40px));
  min-height: calc(100vh - var(--header-h) - 150px);
  padding: 12px 0 24px;
}

.about-shell {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) 1.1fr;
  gap: clamp(20px, 3vw, 32px);
  align-items: stretch;
  flex: 1;
  min-height: 0;
}

.about-profile {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--glow);
}
.about-profile img {
  width: 100%;
  flex: 1;
  min-height: 280px;
  object-fit: cover;
  object-position: center top;
  display: block;
  background: var(--bg);
}
.about-profile-meta {
  padding: 18px 20px 20px;
  border-top: 1px solid var(--line);
}
.about-profile-meta h1 {
  margin: 0 0 4px;
  font-size: clamp(1.25rem, 2.2vw, 1.55rem);
  letter-spacing: -0.03em;
}
.about-profile-meta .kicker { margin-bottom: 6px; }

.about-panel {
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(120% 80% at 100% 0%, var(--accent-dim), transparent 55%),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(22px, 3vw, 32px);
  box-shadow: var(--glow);
}
.about-panel h2 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  letter-spacing: -0.04em;
  line-height: 1.15;
}
.about-lead {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.55;
  max-width: none;
}
.about-pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 8px 0 20px;
  flex: 1;
}
.about-pillar {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--bg);
  border: 1px solid var(--line);
}
.about-pillar strong {
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.about-pillar span {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.4;
}

.about-contact {
  scroll-margin-top: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.about-contact h3 { margin: 0 0 6px; font-size: 1rem; }
.about-contact p { margin: 0 0 4px; }

.product-grid, .card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 36px;
}
.card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--glow);
}
.card h2, .card h3 { margin: 0 0 8px; letter-spacing: -0.03em; }
.card p { color: var(--muted); margin: 0 0 16px; }
.card-link { color: inherit; text-decoration: none; display: block; }
.card-link:hover { text-decoration: none; border-color: var(--accent); }
.card-link p { margin-bottom: 0; }
.card .tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 4px 8px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.section { margin-top: 48px; }
.section h2 { font-size: 1.6rem; letter-spacing: -0.03em; margin: 0 0 8px; }
.section-lede { color: var(--muted); max-width: 620px; margin: 0 0 20px; }
.block { scroll-margin-top: 88px; padding-top: 8px; }

.flash {
  background: var(--accent-dim);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 20px;
}
.flash-bad { background: #fef2f2; color: #991b1b; }

.contact-form {
  max-width: 520px;
  display: grid;
  gap: 14px;
}
.contact-form label { display: grid; gap: 6px; font-weight: 600; font-size: 0.9rem; }
.contact-form input,
.contact-form textarea {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
}

.list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
}
.list strong { color: var(--text); }
.list span { color: var(--muted); }

.client-card { display: flex; flex-direction: column; }
.client-card a { font-weight: 700; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 20px 22px;
  background: var(--bg-elevated);
  text-align: center;
}
.footer-inner {
  width: min(720px, 100%);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.footer-brand {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.1em;
}
.footer-brand .two { color: var(--accent); }
.footer-tagline,
.footer-copy {
  color: var(--muted);
  margin: 0;
  max-width: 42ch;
  line-height: 1.45;
}
.footer-copy { font-size: 0.85rem; margin-top: 4px; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  margin: 4px 0;
}
.footer-links a {
  color: var(--text);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
}
.footer-links a:hover { color: var(--accent); }

@media (max-width: 1100px) {
  .site-header { padding: 0 16px; }
  .site-nav a { font-size: 0.82rem; padding: 8px 8px; }
}

@media (max-width: 860px) {
  .product-grid, .card-grid, .meaning-row, .svc-grid { grid-template-columns: 1fr; }
  .about-shell { grid-template-columns: 1fr; }
  .about-pillars { grid-template-columns: 1fr; }
  .btn-nav { display: none; }
  .hero-copy h1 { font-size: clamp(2.1rem, 9vw, 2.8rem); }
  .hero-side { grid-template-rows: auto auto; }
  .hero-bottom { grid-template-columns: 1fr; }
  .hero-stat { min-height: 0; }
  .hero-copy { justify-content: flex-start; }
  .main-home,
  .main-services,
  .main-about { min-height: 0; width: min(1120px, calc(100% - 32px)); }
  .about-profile img { min-height: 240px; max-height: 360px; }
  .service-row { grid-template-columns: 36px 1fr; gap: 10px; padding: 14px 0; }
  .svc-card { min-height: auto; }
  .list li { grid-template-columns: 1fr; gap: 4px; }
  .nav-toggle { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    right: 16px;
    left: 16px;
    z-index: 41;
    flex-direction: column;
    align-items: stretch;
    background: var(--mobile-nav-bg);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 10px;
    box-shadow: var(--glow);
    max-height: calc(100vh - 90px);
    overflow: auto;
  }
  .site-nav.is-open { display: flex; }
  .nav-backdrop.is-open {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.25);
    z-index: 30;
  }
}

@media (max-width: 640px) {
  .hero-split { grid-template-columns: 1fr; min-height: 0; }
}