:root {
  --teal: #0f766e;
  --teal-deep: #115e59;
  --teal-ink: #134e4a;
  --coral: #ff6b35;
  --cyan: #06b6d4;
  --sand: #fff7f0;
  --mist: #ecfdf8;
  --ink: #14201f;
  --muted: #5c6f6c;
  --line: rgba(19, 78, 74, 0.14);
  --paper: #f7fffc;
  --font-display: "Bricolage Grotesque", Georgia, serif;
  --font-body: "Sora", "Segoe UI", sans-serif;
  --radius: 18px;
  --max: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(900px 480px at 100% -10%, rgba(255, 107, 53, 0.12), transparent 55%),
    radial-gradient(800px 420px at -10% 20%, rgba(15, 118, 110, 0.12), transparent 50%),
    linear-gradient(180deg, var(--mist) 0%, var(--paper) 38%, #ffffff 100%);
  line-height: 1.55;
}

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

a { color: inherit; }

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: #fff;
  padding: 8px 12px;
  z-index: 100;
}
.skip:focus { left: 12px; top: 12px; }

.top {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: calc(14px + env(safe-area-inset-top, 0px)) clamp(16px, 4vw, 40px) 14px;
  backdrop-filter: blur(14px);
  background: rgba(247, 255, 252, 0.82);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--teal-ink);
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  object-fit: contain;
  background: #fff;
  padding: 2px;
  border: 1px solid var(--line);
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.top-nav a:not(.btn) {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.top-nav a:not(.btn):hover { color: var(--teal-deep); }

.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 12px 10px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.menu-btn span {
  display: block;
  height: 2px;
  background: var(--teal-ink);
  border-radius: 2px;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 10px;
  padding: 12px 16px 18px;
  background: rgba(247, 255, 252, 0.96);
  border-bottom: 1px solid var(--line);
}

.mobile-nav a:not(.btn) {
  text-decoration: none;
  padding: 10px 4px;
  color: var(--teal-ink);
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-solid {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-deep) 100%);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  border-color: rgba(15, 118, 110, 0.35);
  color: var(--teal-deep);
}

.btn-ghost-dark {
  background: transparent;
  border-color: rgba(20, 32, 31, 0.2);
  color: var(--ink);
}

.btn-light {
  background: rgba(255, 255, 255, 0.92);
  color: var(--teal-ink);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-lg {
  min-height: 52px;
  padding: 0 22px;
  font-size: 1rem;
}

.hero {
  position: relative;
  min-height: min(100vh, 920px);
  display: grid;
  align-items: end;
  overflow: clip;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  animation: heroDrift 18s ease-in-out infinite alternate;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 40, 38, 0.18) 0%, rgba(10, 40, 38, 0.55) 55%, rgba(10, 32, 30, 0.82) 100%),
    linear-gradient(90deg, rgba(15, 118, 110, 0.35) 0%, transparent 55%);
}

.hero-copy {
  position: relative;
  z-index: 1;
  width: min(var(--max), 100%);
  margin: 0 auto;
  padding: clamp(72px, 14vh, 140px) clamp(16px, 4vw, 40px) clamp(48px, 8vh, 88px);
  color: #f7fffc;
}

.brand-mark {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.hero h1 {
  margin: 0;
  max-width: 14ch;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.6vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.lede {
  margin: 16px 0 0;
  max-width: 42ch;
  font-size: 1.05rem;
  color: rgba(247, 255, 252, 0.88);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.section {
  width: min(var(--max), 100%);
  margin: 0 auto;
  padding: clamp(64px, 10vh, 104px) clamp(16px, 4vw, 40px);
}

.section-head {
  max-width: 36rem;
  margin-bottom: 28px;
}

.section h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  letter-spacing: -0.02em;
  color: var(--teal-ink);
  line-height: 1.15;
}

.section-head p,
.how-copy > p,
.android-panel > div > p,
.close > p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.preview-stage {
  margin: 0;
  border-radius: calc(var(--radius) + 6px);
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    radial-gradient(700px 280px at 10% 0%, rgba(204, 251, 241, 0.9), transparent 55%),
    #fff;
  box-shadow: 0 24px 48px rgba(19, 78, 74, 0.08);
}

.preview-stage img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: contain;
  background: #fff;
}

.value-row {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.value-row li {
  padding: 16px 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(236, 253, 248, 0.55));
}

.value-row strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--teal-ink);
  margin-bottom: 6px;
}

.value-row span {
  color: var(--muted);
  font-size: 0.92rem;
}

.feature-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.feature-list-wide {
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.feature-list li {
  padding: 18px 16px 20px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.feature-icon {
  display: block;
  width: 40px;
  height: 40px;
  margin-bottom: 12px;
  border-radius: 12px;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.16), rgba(6, 182, 212, 0.12)),
    #fff;
  border: 1px solid var(--line);
  position: relative;
}

.feature-icon::after {
  content: "";
  position: absolute;
  inset: 11px;
  border-radius: 4px;
  background: currentColor;
  opacity: 0.85;
  clip-path: polygon(20% 0, 80% 0, 100% 50%, 80% 100%, 20% 100%, 0 50%);
}

.feature-icon-green { color: #0f766e; }
.feature-icon-blue { color: #2563eb; }
.feature-icon-orange { color: #ea580c; }
.feature-icon-teal { color: #0d9488; }
.feature-icon-yellow { color: #ca8a04; }
.feature-icon-purple { color: #7c3aed; }
.feature-icon-pink { color: #db2777; }
.feature-icon-sky { color: #0284c7; }

.feature-list h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--teal-ink);
}

.feature-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.how-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
}

.steps {
  list-style: none;
  margin: 28px 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.steps li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 600;
  color: var(--teal-ink);
}

.steps span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.12), rgba(6, 182, 212, 0.16));
  color: var(--teal);
  font-size: 0.85rem;
  font-weight: 700;
}

.how-visual {
  margin: 0;
  border-radius: calc(var(--radius) + 4px);
  overflow: hidden;
  border: 1px solid var(--line);
}

.how-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.how-visual:hover img { transform: scale(1.03); }

.android-panel {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 28px;
  align-items: center;
  padding: clamp(28px, 5vw, 44px);
  border-radius: calc(var(--radius) + 6px);
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.08), rgba(255, 107, 53, 0.08)),
    #fff;
  border: 1px solid var(--line);
}

.android-aside {
  justify-self: end;
  text-align: center;
  padding: 22px;
}

.android-aside img {
  width: 120px;
  height: 120px;
  margin: 0 auto 10px;
  object-fit: contain;
  background: #fff;
  border-radius: 22px;
  padding: 8px;
  border: 1px solid var(--line);
  animation: floaty 4.5s ease-in-out infinite;
}

.android-aside p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.close {
  text-align: center;
  padding-bottom: clamp(80px, 12vh, 120px);
}

.close .cta-row { justify-content: center; }

.foot {
  border-top: 1px solid var(--line);
  padding: 28px clamp(16px, 4vw, 40px) 40px;
  display: grid;
  gap: 14px;
  background: rgba(255, 255, 255, 0.65);
}

.foot-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
}

.foot-brand img {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  object-fit: contain;
  background: #fff;
  padding: 1px;
  border: 1px solid var(--line);
}

.foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
}

.foot-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}

.foot-links a:hover { color: var(--teal); }

.foot-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }

@keyframes heroDrift {
  from { transform: scale(1.04) translate3d(0, 0, 0); }
  to { transform: scale(1.1) translate3d(0, -1.5%, 0); }
}

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

@media (max-width: 980px) {
  .feature-list-wide,
  .value-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .feature-list,
  .how-grid,
  .android-panel {
    grid-template-columns: 1fr;
  }

  .android-aside { justify-self: start; }
}

@media (max-width: 560px) {
  .value-row,
  .feature-list-wide {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .top-nav { display: none; }
  .menu-btn { display: flex; }
  .mobile-nav.open { display: flex; }

  .hero { min-height: 88vh; }
  .brand-mark { font-size: clamp(1.8rem, 9vw, 2.6rem); }
}