/* ── iOS-inspired design tokens ── */
:root {
  --color-bg: #f5f5f7;
  --color-bg-alt: #ffffff;
  --color-surface: #ffffff;
  --color-ink: #1d1d1f;
  --color-ink-muted: #6e6e73;
  --color-ink-faint: #86868b;
  --color-primary: #0F4C5C;
  --color-primary-hover: #0a3a47;
  --color-primary-light: rgba(15, 76, 92, 0.12);
  --color-accent: #0F4C5C;
  --color-accent-soft: rgba(15, 76, 92, 0.1);
  --color-border: rgba(0, 0, 0, 0.08);
  --color-separator: rgba(60, 60, 67, 0.12);
  --color-dark: #000000;
  --color-dark-surface: #1c1c1e;
  --font-display: "DM Sans", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", system-ui, sans-serif;
  --font-body: "DM Sans", -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", system-ui, sans-serif;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 980px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
  --shadow-ios: 0 2px 16px rgba(0, 0, 0, 0.06), 0 0 1px rgba(0, 0, 0, 0.08);
  --blur-ios: saturate(180%) blur(20px);
  --header-h: 96px;
  --transition: 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

.container-narrow {
  width: min(720px, 92vw);
  margin-inline: auto;
}

/* ── Type ── */
.eyebrow {
  margin: 0 0 0.6rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.eyebrow-light { color: var(--color-accent); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  margin: 0;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5.5vw, 3.75rem); font-weight: 700; }
h2 { font-size: clamp(1.9rem, 3.5vw, 2.75rem); font-weight: 700; }
h3 { font-size: 1.35rem; font-weight: 600; }

.section-header { margin-bottom: 3rem; max-width: 58ch; }
.section-header.center { text-align: center; margin-inline: auto; }
.section-header p { margin: 0.85rem 0 0; color: var(--color-ink-muted); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.35rem;
  border-radius: var(--radius-pill);
  border: none;
  font-weight: 500;
  font-size: 0.94rem;
  transition: background var(--transition), opacity var(--transition), transform var(--transition);
}

.btn:active { transform: scale(0.97); opacity: 0.85; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover { background: var(--color-primary-hover); }

.btn-secondary {
  background: rgba(0, 0, 0, 0.05);
  color: var(--color-ink);
}

.btn-secondary:hover { background: rgba(0, 0, 0, 0.08); }

.btn-lg { padding: 0.95rem 1.75rem; font-size: 1rem; }

.btn-light {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}

.btn-light:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: #fff;
  color: #fff;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 245, 247, 0.72);
  backdrop-filter: var(--blur-ios);
  -webkit-backdrop-filter: var(--blur-ios);
  border-bottom: 1px solid var(--color-separator);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding-block: 0.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.05rem;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 22%;
  background: linear-gradient(145deg, #0d5c63, #0a484e);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  box-shadow: var(--shadow-sm);
}

.logo-accent { color: var(--color-accent); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.site-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-ink-muted);
  transition: color var(--transition);
}

.site-nav a:hover,
.site-nav a.active { color: var(--color-primary); }

.nav-cta {
  padding: 0.4rem 0.9rem !important;
  background: var(--color-primary) !important;
  color: #fff !important;
  border-radius: var(--radius-pill);
  font-weight: 500 !important;
  font-size: 0.85rem !important;
}

.nav-cta:hover { background: var(--color-primary-hover) !important; color: #fff !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Level picker (multi-subdomain) ── */
.level-picker-wrap {
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--color-separator);
}

.level-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
}

.level-pill {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-ink-muted);
  background: rgba(0, 0, 0, 0.04);
  border-radius: var(--radius-pill);
  transition: background var(--transition), color var(--transition);
}

.level-pill:hover {
  background: rgba(0, 0, 0, 0.07);
  color: var(--color-ink);
}

.level-pill--active {
  background: var(--color-primary);
  color: #fff;
}

.level-pill--active:hover { color: #fff; }

.levels-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.level-link-card {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.35rem 1.25rem;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-ios);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.level-link-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.level-link-card strong {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.level-link-card span {
  font-size: 0.88rem;
  color: var(--color-ink-muted);
}

.level-link-card small {
  font-size: 0.75rem;
  color: var(--color-ink-faint);
}

.level-site-banner {
  margin-top: 0.75rem;
  padding: 0.55rem 1rem;
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  background: var(--color-primary-light);
  border-radius: var(--radius-sm);
  text-align: center;
}

.level-site-banner a {
  color: var(--color-primary);
  font-weight: 600;
}

@media (max-width: 768px) {
  .levels-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .levels-grid { grid-template-columns: 1fr; }
}

/* ── Hero ── */
.hero {
  padding: 4rem 0 3rem;
  overflow: hidden;
  background: var(--color-bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-lead {
  margin: 1.25rem 0 1.75rem;
  font-size: 1.12rem;
  color: var(--color-ink-muted);
  max-width: 48ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.ios-requirements {
  margin: 0;
  font-size: 0.8rem;
  color: var(--color-ink-faint);
}

/* App Store badge */
.app-store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 1rem 0.55rem 0.75rem;
  background: #000;
  color: #fff;
  border-radius: 10px;
  text-decoration: none;
  transition: opacity var(--transition), transform var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.app-store-badge:hover { opacity: 0.88; }
.app-store-badge:active { transform: scale(0.98); }

.app-store-badge--lg {
  padding: 0.65rem 1.15rem 0.65rem 0.85rem;
}

.app-store-badge--light {
  background: #fff;
  color: #000;
  border-color: rgba(0, 0, 0, 0.1);
}

.app-store-badge__icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.app-store-badge--lg .app-store-badge__icon {
  width: 30px;
  height: 30px;
}

.app-store-badge__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  text-align: left;
}

.app-store-badge__text small {
  font-size: 0.62rem;
  font-weight: 400;
  opacity: 0.9;
}

.app-store-badge__text strong {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.app-store-badge--lg .app-store-badge__text strong {
  font-size: 1.2rem;
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 2rem 0;
}

.hero-float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: var(--blur-ios);
  -webkit-backdrop-filter: var(--blur-ios);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-ios);
  border: 1px solid rgba(255, 255, 255, 0.6);
  animation: float 4s ease-in-out infinite;
}

.float-card-1 { top: 10%; left: 0; animation-delay: 0s; }
.float-card-2 { bottom: 12%; right: 0; animation-delay: 1.5s; }

.float-icon { font-size: 1.3rem; }

.hero-float-card strong {
  display: block;
  font-size: 0.9rem;
  line-height: 1.2;
}

.hero-float-card small {
  font-size: 0.75rem;
  color: var(--color-ink-faint);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ── Device frames ── */
.device-frame {
  background: #1c1c1e;
  border-radius: 48px;
  padding: 11px;
  box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  position: relative;
}

.device-phone {
  width: min(260px, 70vw);
  border-radius: 48px;
  padding: 11px;
}

.device-tablet {
  width: min(380px, 90vw);
  border-radius: 28px;
  padding: 14px;
  background: #2c2c2e;
}

.device-island {
  width: 96px;
  height: 28px;
  background: #000;
  border-radius: 20px;
  margin: 4px auto 10px;
  position: relative;
  z-index: 2;
}

/* ── Screenshot placeholders ── */
.screenshot-placeholder {
  margin: 0;
  aspect-ratio: 9 / 19.5;
  border-radius: 38px;
  border: none;
  background: linear-gradient(160deg, #2c2c2e 0%, #1c1c1e 100%);
  overflow: hidden;
  position: relative;
}

.device-tablet .screenshot-placeholder {
  aspect-ratio: 4 / 3;
  border-radius: 12px;
}

.screenshot-placeholder::after {
  content: attr(data-label);
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 0.2rem 0.55rem;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.5);
  background: rgba(0, 0, 0, 0.35);
  border-radius: 5px;
}

.placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 0.4rem;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
  padding: 1rem;
}

.placeholder-inner svg {
  width: 40px;
  height: 40px;
  opacity: 0.5;
}

.placeholder-inner span {
  font-size: 1.4rem;
  font-family: var(--font-display);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.35);
}

.placeholder-inner small {
  font-size: 0.78rem;
}

/* ── Trust strip ── */
.trust-strip {
  padding: 2rem 0;
  border-block: 1px solid var(--color-separator);
  background: var(--color-bg-alt);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.trust-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.trust-item span {
  font-size: 0.88rem;
  color: var(--color-ink-muted);
}

/* ── Sections ── */
.section { padding: 5rem 0; }
.section-alt { background: #ffffff; }

.section-dark {
  background: #000;
  color: #f5f5f7;
}

.section-dark .section-header p { color: rgba(255, 255, 255, 0.65); }
.section-dark h2 { color: #fff; }

/* ── Feature showcase (zigzag) ── */
.feature-showcase {
  display: flex;
  flex-direction: column;
  gap: 5rem;
}

.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.showcase-row.reverse .showcase-copy { order: 2; }
.showcase-row.reverse .showcase-visual { order: 1; }

.showcase-tag {
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.3rem 0.7rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  border-radius: 99px;
}

.showcase-copy h3 { margin-bottom: 0.85rem; }
.showcase-copy > p { margin: 0 0 1.25rem; color: var(--color-ink-muted); }

.showcase-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.showcase-list li {
  padding-left: 1.4rem;
  position: relative;
  font-size: 0.95rem;
  color: var(--color-ink);
}

.showcase-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.showcase-visual {
  display: flex;
  justify-content: center;
}

/* ── Screenshot carousel ── */
.screenshot-carousel {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.carousel-track-wrap {
  flex: 1;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.carousel-track {
  display: flex;
  gap: 1.5rem;
  transition: transform 0.45s cubic-bezier(0.25, 0.8, 0.25, 1);
  padding: 1rem 0 2rem;
}

.carousel-slide {
  flex: 0 0 min(220px, 55vw);
  margin: 0;
  text-align: center;
}

.carousel-device {
  width: 100%;
  margin-inline: auto;
}

.carousel-slide figcaption {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.carousel-btn {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 1.1rem;
  transition: background var(--transition);
}

.carousel-btn:hover { background: rgba(255, 255, 255, 0.18); }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.25);
  padding: 0;
  transition: background var(--transition), transform var(--transition);
}

.carousel-dot.active {
  background: var(--color-primary);
  transform: scale(1.25);
}

/* ── Steps ── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.step-card {
  padding: 2rem 1.75rem;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: none;
  box-shadow: var(--shadow-ios);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-bottom: 1.25rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
  border-radius: 50%;
}

.step-card h3 { margin-bottom: 0.6rem; font-size: 1.15rem; }
.step-card p { margin: 0; font-size: 0.95rem; color: var(--color-ink-muted); }

/* ── FAQ ── */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.faq-item {
  background: var(--color-surface);
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-ios);
  overflow: hidden;
}

.faq-item summary {
  padding: 1.1rem 1.25rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--color-ink-faint);
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  margin: 0;
  padding: 0 1.25rem 1.1rem;
  font-size: 0.95rem;
  color: var(--color-ink-muted);
  line-height: 1.6;
}

/* ── CTA ── */
.cta-section {
  padding: 5rem 0;
  background: #000;
  color: #f5f5f7;
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.cta-copy h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 0.75rem;
}

.cta-copy p {
  margin: 0 0 1.75rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 42ch;
}

.cta-device {
  width: 220px;
}

/* ── Footer ── */
.site-footer {
  padding: 3rem 0;
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 1.5rem 3rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
  margin: 0 0 0.25rem;
}

.footer-brand span { color: #86868b; }
.footer-tagline { margin: 0; font-size: 0.9rem; }

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-self: start;
}

.footer-nav a {
  font-size: 0.88rem;
  transition: color var(--transition);
}

.footer-nav a:hover { color: #fff; }

.footer-legal {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.82rem;
  line-height: 1.6;
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay { transition-delay: 0.15s; }

/* ── Responsive ── */
@media (max-width: 960px) {
  .hero-grid,
  .showcase-row,
  .cta-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-lead,
  .cta-copy p { margin-inline: auto; }

  .hero-actions { justify-content: center; }

  .showcase-row.reverse .showcase-copy,
  .showcase-row.reverse .showcase-visual { order: unset; }

  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: 1fr; }
  .cta-visual { display: flex; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-nav { justify-content: center; }

  .float-card-1 { left: 5%; }
  .float-card-2 { right: 5%; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem 0;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }

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

  .site-nav a {
    padding: 0.9rem 1.5rem;
    border-bottom: 1px solid var(--color-bg-alt);
  }

  .nav-cta {
    margin: 0.5rem 1rem !important;
    text-align: center;
  }

  .carousel-btn { display: none; }
  .carousel-track-wrap { mask-image: none; }
}

@media (max-width: 480px) {
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .hero-float-card { display: none; }
}