:root {
  --bg-top: #14224a;
  --bg-bottom: #060b1c;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-border: rgba(255, 255, 255, 0.10);
  --text: #e9edf9;
  --muted: #a6b0cc;
  --warm: #f4d2a6;
  --warm-strong: #f7e2bf;
  --periwinkle: #8a95c6;
  --focus: #f4d2a6;
  --radius: 20px;
  --maxw: 1040px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg-bottom);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.2; font-weight: 700; letter-spacing: -0.01em; }

a { color: inherit; }

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

.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }

.btn-primary {
  background: linear-gradient(120deg, var(--warm), var(--warm-strong));
  color: #2a2033;
  box-shadow: 0 12px 30px -12px rgba(244, 210, 166, 0.7);
}

.btn-primary:hover { transform: translateY(-2px); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--panel-border);
}

.btn-ghost:hover { background: var(--panel); }

.btn-disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none;
}

/* Hero -------------------------------------------------------------- */

.hero {
  background:
    radial-gradient(1100px 600px at 78% -8%, rgba(244, 210, 166, 0.16), transparent 60%),
    linear-gradient(160deg, var(--bg-top), var(--bg-bottom));
  padding-bottom: 3rem;
}

.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.4rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
  margin-right: auto;
}

.brand-mark { width: 34px; height: 34px; border-radius: 9px; }

.nav-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.98rem;
}

.nav-link:hover { color: var(--text); }

.hero-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 1rem;
  text-align: center;
}

.hero-logo {
  width: 116px;
  height: 116px;
  margin: 0 auto 1.6rem;
  border-radius: 26px;
  box-shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.8);
}

.hero-inner h1 {
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  margin: 0 0 1.1rem;
}

.lead {
  font-size: clamp(1.05rem, 2.4vw, 1.28rem);
  color: var(--muted);
  margin: 0 auto 2rem;
  max-width: 620px;
}

.cta-row {
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-note {
  margin-top: 1.6rem;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Sections ---------------------------------------------------------- */

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 4.5rem 1.5rem;
}

.section-head { text-align: center; margin-bottom: 2.6rem; }

.section-head h2 { font-size: clamp(1.7rem, 3.6vw, 2.3rem); margin: 0 0 0.6rem; }

.section-sub { color: var(--muted); margin: 0; font-size: 1.05rem; }

/* Story ------------------------------------------------------------- */

.story {
  max-width: 640px;
  margin: 0 auto;
  font-size: 1.1rem;
}

.story p { margin: 0 0 1.2rem; color: #d4dbf0; }

.story strong { color: var(--warm-strong); font-weight: 600; }

/* Highlight (no device) --------------------------------------------- */

.highlight { padding-top: 1rem; padding-bottom: 1rem; }

.highlight-card {
  border: 1px solid var(--panel-border);
  background:
    radial-gradient(600px 200px at 10% 0%, rgba(138, 149, 198, 0.16), transparent 70%),
    var(--panel);
  border-radius: var(--radius);
  padding: 2.4rem;
  text-align: center;
}

.highlight-card h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 0 0 0.8rem; }

.highlight-card p { color: var(--muted); margin: 0 auto; max-width: 620px; font-size: 1.08rem; }

/* Features ----------------------------------------------------------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.2rem;
}

.feature {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1.8rem;
}

.feature-icon { font-size: 1.8rem; margin-bottom: 0.7rem; }

.feature h3 { margin: 0 0 0.5rem; font-size: 1.18rem; }

.feature p { margin: 0; color: var(--muted); }

.contribute-cta { margin-top: 2.4rem; }

/* Screenshots -------------------------------------------------------- */

.shot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.6rem;
  justify-items: center;
}

.phone { margin: 0; text-align: center; }

.phone-screen {
  width: 232px;
  aspect-ratio: 400 / 860;
  border-radius: 30px;
  border: 6px solid #1c243f;
  background: #0b1024;
  box-shadow: 0 24px 50px -24px rgba(0, 0, 0, 0.9);
  overflow: hidden;
}

.phone-screen img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone figcaption { margin-top: 0.9rem; color: var(--muted); font-size: 0.96rem; }

/* Get ---------------------------------------------------------------- */

.get-card {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
  background:
    radial-gradient(600px 260px at 50% -20%, rgba(244, 210, 166, 0.18), transparent 65%),
    var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 3rem 2rem;
}

.get-logo { width: 76px; height: 76px; border-radius: 18px; margin: 0 auto 1.2rem; }

.get-card h2 { font-size: 2rem; margin: 0 0 0.6rem; }

.get-card p { color: var(--muted); margin: 0 auto 1.6rem; max-width: 420px; }

.get-note { margin-top: 1.4rem !important; font-size: 0.9rem; }

/* Footer ------------------------------------------------------------- */

.footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
  text-align: center;
  border-top: 1px solid var(--panel-border);
}

.disclaimer { color: var(--muted); font-size: 0.86rem; margin: 0 0 1rem; }

.foot-meta { color: #6f7aa0; font-size: 0.82rem; margin: 0; }

/* Mobile ------------------------------------------------------------- */

/* On narrow screens the single-row nav runs out of width and the links
   overlap. Let the bar wrap: the brand takes the first row, the links
   flow centered onto the next. */
@media (max-width: 720px) {
  .nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem 1.1rem;
    padding: 1rem 1.1rem;
  }

  .brand {
    flex-basis: 100%;
    justify-content: center;
    margin-right: 0;
  }
}