/* ===========================================================================
   CNG Connect — marketing website stylesheet
   Brand palette mirrors the mobile app theme (src/theme/index.ts)
   =========================================================================== */

:root {
  --primary: #16a34a;
  --primary-dark: #0b3d2e;
  --primary-light: #dcfce7;
  --accent: #22c55e;

  --bg: #f9fafb;
  --surface: #ffffff;
  --surface-alt: #f3f4f6;

  --text: #111827;
  --text-muted: #6b7280;
  --text-inverse: #ffffff;

  --border: #e5e7eb;

  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #dc2626;
  --info: #2563eb;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.08);
  --shadow-md: 0 8px 24px rgba(16, 24, 40, 0.1);
  --shadow-lg: 0 24px 60px rgba(11, 61, 46, 0.18);

  --maxw: 1160px;
  --header-h: 72px;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
}

h1,
h2,
h3,
h4 {
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  font-weight: 800;
}
h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 800;
}
h3 {
  font-size: 1.2rem;
  font-weight: 700;
}

p {
  margin: 0 0 1rem;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

.section--tight {
  padding: 56px 0;
}

.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
}

.section-head {
  max-width: 680px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head p {
  color: var(--text-muted);
  font-size: 1.08rem;
}

.text-muted {
  color: var(--text-muted);
}

/* ---------- Buttons ---------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.98rem;
  padding: 13px 24px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.btn:active {
  transform: translateY(1px);
}
.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(22, 163, 74, 0.35);
}
.btn--primary:hover {
  background: #12833c;
  box-shadow: 0 12px 26px rgba(22, 163, 74, 0.45);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn--ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.btn--light {
  background: #fff;
  color: var(--primary-dark);
}
.btn--light:hover {
  background: #f0fdf4;
}

/* ---------- Header ----------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--primary-dark);
}
.brand svg {
  width: 34px;
  height: 34px;
}
.brand span b {
  color: var(--primary);
}
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.96rem;
}
.nav a:hover {
  color: var(--primary);
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.nav-toggle span + span {
  margin-top: 6px;
}

/* ---------- Hero ------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(
      1200px 600px at 80% -10%,
      rgba(34, 197, 94, 0.28),
      transparent 60%
    ),
    linear-gradient(160deg, #0b3d2e 0%, #0f5137 55%, #12833c 120%);
  color: #fff;
  padding: 84px 0 96px;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    rgba(255, 255, 255, 0.06) 1px,
    transparent 1px
  );
  background-size: 26px 26px;
  opacity: 0.5;
  pointer-events: none;
}
.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #eafff1;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 22px;
}
.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.3);
}
.hero h1 {
  color: #fff;
}
.hero h1 .hl {
  background: linear-gradient(120deg, #6ee7a0, #d9f99d);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.86);
  max-width: 520px;
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 26px;
}
.store-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #000;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 10px 18px;
  border-radius: 12px;
  transition: transform 0.15s, background 0.2s;
}
.store-badge:hover {
  transform: translateY(-2px);
  background: #111;
}
.store-badge svg {
  width: 26px;
  height: 26px;
}
.store-badge small {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.8;
  line-height: 1.1;
}
.store-badge b {
  font-size: 1.02rem;
  line-height: 1.1;
}
.hero-note {
  margin-top: 16px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ---------- Phone mockup ---------------------------------------------- */
.phone-wrap {
  display: flex;
  justify-content: center;
  perspective: 1400px;
}
.phone {
  position: relative;
  width: 300px;
  height: 610px;
  background: #0b3d2e;
  border-radius: 44px;
  padding: 12px;
  box-shadow: var(--shadow-lg), 0 0 0 2px rgba(255, 255, 255, 0.06) inset;
  transform: rotateY(-14deg) rotateX(4deg) rotate(1deg);
  transition: transform 0.5s ease;
}
.phone:hover {
  transform: rotateY(-4deg) rotateX(2deg);
}
.phone-notch {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 24px;
  background: #0b3d2e;
  border-radius: var(--radius-pill);
  z-index: 3;
}
.phone-screen {
  position: relative;
  height: 100%;
  border-radius: 34px;
  overflow: hidden;
  background: #dce6df;
  display: flex;
  flex-direction: column;
}

/* Mini in-app map illustration */
.mini-map {
  position: relative;
  flex: 1;
  background: linear-gradient(160deg, #e8f0ea 0%, #d7e6dc 100%);
  overflow: hidden;
}
.mini-map .road {
  position: absolute;
  background: #c2d3c8;
  border-radius: 6px;
}
.mini-map .road.r1 {
  width: 220%;
  height: 16px;
  top: 30%;
  left: -40%;
  transform: rotate(-18deg);
}
.mini-map .road.r2 {
  width: 220%;
  height: 12px;
  top: 62%;
  left: -30%;
  transform: rotate(8deg);
}
.mini-map .road.r3 {
  width: 12px;
  height: 240%;
  left: 55%;
  top: -40%;
  transform: rotate(10deg);
}
.pin {
  position: absolute;
  width: 26px;
  height: 26px;
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  border: 2px solid #fff;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.28);
  display: grid;
  place-items: center;
}
.pin::after {
  content: "";
  width: 7px;
  height: 7px;
  background: #fff;
  border-radius: 50%;
  transform: rotate(45deg);
}
.pin.green {
  background: #16a34a;
}
.pin.blue {
  background: #2563eb;
}
.pin.amber {
  background: #f59e0b;
}
.pin.ping {
  animation: ping 2.4s ease-out infinite;
}
@keyframes ping {
  0% {
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.28), 0 0 0 0 rgba(22, 163, 74, 0.5);
  }
  70% {
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.28), 0 0 0 16px rgba(22, 163, 74, 0);
  }
  100% {
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.28), 0 0 0 0 rgba(22, 163, 74, 0);
  }
}
.mini-top {
  position: absolute;
  top: 44px;
  left: 14px;
  right: 14px;
  background: #fff;
  border-radius: 14px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-sm);
  z-index: 2;
}
.mini-top .search {
  flex: 1;
  height: 8px;
  background: #eceff1;
  border-radius: 4px;
}
.mini-card {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  background: #fff;
  border-radius: 16px;
  padding: 14px;
  box-shadow: var(--shadow-md);
  z-index: 2;
}
.mini-card .row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.mini-card .avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary-light);
  display: grid;
  place-items: center;
  color: var(--primary);
}
.mini-card .title {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text);
}
.mini-card .meta {
  font-size: 0.72rem;
  color: var(--text-muted);
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.68rem;
  font-weight: 700;
  color: #fff;
  background: var(--primary);
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  margin-top: 8px;
}
.status-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
}

/* ---------- Stats bar -------------------------------------------------- */
.stats {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 44px 24px;
}
.stat {
  text-align: center;
}
.stat b {
  display: block;
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--primary-dark);
}
.stat span {
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* ---------- Feature grid ---------------------------------------------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #d6f0df;
}
.feature .ic {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}
.feature .ic svg {
  width: 24px;
  height: 24px;
}
.feature h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}
.feature p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin: 0;
}

/* ---------- How it works ---------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  counter-reset: step;
}
.step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 24px 26px;
}
.step .num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-dark);
  color: #fff;
  font-weight: 800;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}
.step h3 {
  font-size: 1.1rem;
}
.step p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
}

/* ---------- Screenshots gallery --------------------------------------- */
.shots {
  display: flex;
  gap: 26px;
  overflow-x: auto;
  padding: 10px 4px 26px;
  scroll-snap-type: x mandatory;
}
.shots::-webkit-scrollbar {
  height: 8px;
}
.shots::-webkit-scrollbar-thumb {
  background: #cfe6d7;
  border-radius: 8px;
}
.shot {
  scroll-snap-align: center;
  flex: 0 0 auto;
}
.device {
  width: 250px;
  height: 512px;
  background: #0b3d2e;
  border-radius: 36px;
  padding: 10px;
  box-shadow: var(--shadow-md);
}
.device-inner {
  position: relative;
  height: 100%;
  border-radius: 28px;
  overflow: hidden;
  background: #fff;
  display: flex;
  flex-direction: column;
}
.d-head {
  background: var(--primary-dark);
  color: #fff;
  padding: 20px 16px 14px;
}
.d-head .t {
  font-weight: 700;
  font-size: 1rem;
}
.d-head .s {
  font-size: 0.72rem;
  opacity: 0.75;
}
.d-body {
  flex: 1;
  padding: 14px;
  background: var(--bg);
  overflow: hidden;
}
.d-row {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.d-row . dot,
.d-dot {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: #fff;
  flex: 0 0 auto;
  font-size: 0.8rem;
  font-weight: 700;
}
.d-row .l1 {
  height: 8px;
  width: 70%;
  background: #e7ebe9;
  border-radius: 4px;
  margin-bottom: 6px;
}
.d-row .l2 {
  height: 6px;
  width: 45%;
  background: #eef1f0;
  border-radius: 4px;
}
.d-row .grow {
  flex: 1;
}
.shot-cap {
  text-align: center;
  margin-top: 16px;
  font-weight: 600;
  color: var(--text);
}
.shot-cap span {
  display: block;
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ---------- Split highlight ------------------------------------------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.split.reverse .split-media {
  order: 2;
}
.checklist {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  display: grid;
  gap: 14px;
}
.checklist li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.checklist .tick {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  margin-top: 2px;
}
.split-media {
  background: linear-gradient(160deg, #ecfdf3, #d1fadf);
  border: 1px solid #c6f0d3;
  border-radius: var(--radius-xl);
  padding: 34px;
  min-height: 320px;
  display: grid;
  place-items: center;
}
.badge-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.badge-cloud .chip {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 10px 16px;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-sm);
}

/* ---------- FAQ -------------------------------------------------------- */
.faq {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
}
.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  padding: 20px 22px;
  font-family: inherit;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-q .plus {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  position: relative;
  transition: transform 0.25s;
}
.faq-q .plus::before,
.faq-q .plus::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
}
.faq-q .plus::before {
  top: 11px;
  left: 3px;
  width: 18px;
  height: 2px;
}
.faq-q .plus::after {
  top: 3px;
  left: 11px;
  width: 2px;
  height: 18px;
  transition: transform 0.25s;
}
.faq-item.open .plus::after {
  transform: scaleY(0);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-a p {
  padding: 0 22px 20px;
  margin: 0;
  color: var(--text-muted);
}

/* ---------- CTA band --------------------------------------------------- */
.cta {
  background: linear-gradient(140deg, #0b3d2e, #12833c);
  color: #fff;
  border-radius: var(--radius-xl);
  padding: 56px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta h2 {
  color: #fff;
}
.cta p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 26px;
}
.cta .store-badges {
  justify-content: center;
}

/* ---------- Footer ----------------------------------------------------- */
.site-footer {
  background: #06281d;
  color: rgba(255, 255, 255, 0.72);
  padding: 60px 0 28px;
  margin-top: 88px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 34px;
  margin-bottom: 40px;
}
.site-footer .brand {
  color: #fff;
  margin-bottom: 14px;
}
.site-footer .brand span b {
  color: var(--accent);
}
.footer-about {
  font-size: 0.92rem;
  max-width: 320px;
}
.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.72);
  padding: 5px 0;
  font-size: 0.93rem;
}
.footer-col a:hover {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.86rem;
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.72);
}
.footer-bottom a:hover {
  color: #fff;
}

/* ---------- Legal / content pages ------------------------------------- */
.page-hero {
  background: linear-gradient(160deg, #0b3d2e, #12833c);
  color: #fff;
  padding: 64px 0 52px;
}
.page-hero h1 {
  color: #fff;
  margin-bottom: 8px;
}
.page-hero p {
  color: rgba(255, 255, 255, 0.82);
  margin: 0;
}
.legal {
  max-width: 820px;
  margin: 0 auto;
  padding: 56px 24px 24px;
}
.legal h2 {
  font-size: 1.4rem;
  margin-top: 40px;
  color: var(--primary-dark);
}
.legal h3 {
  font-size: 1.1rem;
  margin-top: 26px;
}
.legal p,
.legal li {
  color: #374151;
}
.legal ul {
  padding-left: 22px;
}
.legal li {
  margin-bottom: 8px;
}
.legal .updated {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 8px;
}
.legal .toc {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  margin: 24px 0 8px;
}
.legal .toc h4 {
  margin: 0 0 10px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.legal .toc a {
  display: inline-block;
  margin: 4px 14px 4px 0;
  font-size: 0.94rem;
}
.callout {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin: 20px 0;
}
.callout p {
  margin: 0;
}

/* ---------- Reveal on scroll ------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ------------------------------------------------- */
@media (max-width: 960px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-sub {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions,
  .store-badges {
    justify-content: center;
  }
  .phone-wrap {
    margin-top: 20px;
  }
  .phone {
    transform: none;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats .container {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .split,
  .split.reverse {
    grid-template-columns: 1fr;
  }
  .split.reverse .split-media {
    order: 0;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  .nav,
  .header-cta .btn {
    display: none;
  }
  .nav-toggle {
    display: block;
  }
  .nav.open {
    display: flex;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 8px 24px 18px;
    box-shadow: var(--shadow-md);
  }
  .nav.open a {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    width: 100%;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .stats .container {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 64px 0;
  }
  .cta {
    padding: 44px 22px;
  }
}