:root {
  --bg: #0b1220;
  --bg-alt: #101a2e;
  --panel: #16223c;
  --text: #dce8ff;
  --muted: #9fb4da;
  --primary: #2f8cff;
  --border: #2b3e66;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 20% -10%, #1c3260, var(--bg));
  color: var(--text);
}

a {
  color: #b7d3ff;
  text-decoration: none;
}

.container {
  width: min(1080px, 92%);
  margin: 0 auto;
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.topbar {
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  background: color-mix(in oklab, #0b1220 78%, transparent);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.topbar .container {
  padding: 0.9rem 0;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.3px;
}

nav a {
  margin-left: 1rem;
  color: var(--muted);
}

.hero {
  padding: 4.5rem 0 2rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 1rem;
}

h1 {
  margin: 0.4rem 0 0.8rem;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

h2 {
  margin: 0 0 1rem;
}

.eyebrow {
  color: var(--muted);
  margin: 0 0 0.5rem;
}

.lead {
  color: #c3d7ff;
  font-size: 1.06rem;
  line-height: 1.6;
}

.lead.small {
  font-size: 0.98rem;
}

.actions {
  display: flex;
  gap: 0.8rem;
  margin: 1.2rem 0 0.6rem;
}

.btn {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem 1rem;
  color: var(--text);
}

.btn-sm {
  padding: 0.4rem 0.7rem;
  border-radius: 9px;
}

.btn-primary {
  background: linear-gradient(180deg, #2f8cff, #1875ee);
  border-color: #1b74e8;
}

.note {
  color: var(--muted);
  font-size: 0.9rem;
}

.note.small {
  font-size: 0.82rem;
}

.section {
  padding: 2.3rem 0;
}

.section.alt {
  background: color-mix(in oklab, var(--bg-alt) 86%, transparent);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}

.card {
  background: linear-gradient(180deg, #182a49, var(--panel));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
}

.inline-list {
  margin: 0;
  padding-left: 1.2rem;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}

.shot h3 {
  margin-top: 0;
}

.mock-phone {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.7rem;
  background: #0f1a30;
  min-height: 170px;
}

.mock-bar {
  height: 18px;
  border-radius: 8px;
  background: linear-gradient(90deg, #2f8cff, #1c66ca);
  margin-bottom: 0.65rem;
}

.mock-line {
  height: 10px;
  border-radius: 6px;
  background: #2b3e66;
  margin-bottom: 0.45rem;
}

.w90 { width: 90%; }
.w80 { width: 80%; }
.w75 { width: 75%; }
.w70 { width: 70%; }
.w65 { width: 65%; }
.w60 { width: 60%; }
.w55 { width: 55%; }

.mock-code {
  margin: 0.5rem 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  color: #a3e5b1;
  background: #0d1527;
  border: 1px solid #22365f;
  border-radius: 8px;
  padding: 0.45rem;
}

.video-note {
  margin-top: 0.9rem;
}

.preview-image {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  display: block;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.form {
  display: grid;
  gap: 0.8rem;
}

#form-status {
  min-height: 1.2rem;
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
}

input,
textarea,
select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0f1a30;
  color: var(--text);
  padding: 0.65rem;
  font: inherit;
}

.hp {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.faq {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}

footer {
  border-top: 1px solid var(--border);
  padding: 1rem 0 2rem;
  color: var(--muted);
}

.footer a {
  margin-left: 1rem;
}

@media (max-width: 900px) {
  .hero-grid,
  .grid-3,
  .preview-grid,
  .faq {
    grid-template-columns: 1fr;
  }

  .row {
    flex-direction: column;
    align-items: flex-start;
  }

  nav a {
    margin: 0 0.8rem 0 0;
  }
}