/* Roamvello — shared styles */

:root {
  --bg: #ffffff;
  --bg-soft: #f3f7fc;
  --bg-sand: #faf5ec;
  --surface: #ffffff;
  --text: #0f1c2e;
  --text-muted: #51607a;
  --border: #e2e8f1;
  --accent: #1673e6;
  --accent-strong: #0b5cc4;
  --accent-soft: #e6f0fd;
  --sand: #e3a24a;
  --shadow: 0 1px 2px rgba(15, 28, 46, 0.06), 0 12px 32px rgba(15, 28, 46, 0.10);
  --radius: 18px;
  --max: 1120px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --bg-soft: #101a2c;
    --bg-sand: #16181c;
    --surface: #131e32;
    --text: #e8eef8;
    --text-muted: #9aa9c2;
    --border: #22304a;
    --accent: #5aa2ff;
    --accent-strong: #84baff;
    --accent-soft: #15284a;
    --sand: #f0b867;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.35);
    color-scheme: dark;
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent-strong); }

h1, h2, h3 {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}

.wrap { max-width: var(--max); margin: 0 auto; padding-inline: 20px; }

.skip-link {
  position: absolute; left: -9999px; top: 8px;
  background: var(--accent); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100;
}
.skip-link:focus { left: 8px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 60px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em;
}
.brand:hover { color: var(--text); }
.brand svg { width: 32px; height: 32px; flex: none; }
.site-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.site-nav a {
  color: var(--text-muted); text-decoration: none; font-size: 0.95rem; font-weight: 500;
  padding: 6px 12px; border-radius: 999px;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); background: var(--bg-soft); }

/* Buttons / badges */
.store-badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--text); color: var(--bg);
  padding: 10px 18px 10px 14px; border-radius: 12px;
  font-weight: 600; line-height: 1.2;
}
.store-badge svg { width: 24px; height: 24px; fill: currentColor; flex: none; }
.store-badge small { display: block; font-size: 0.72rem; font-weight: 500; opacity: 0.75; }
.btn-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 600; text-decoration: none;
}

/* Hero */
.hero {
  background:
    radial-gradient(1200px 500px at 85% -10%, var(--accent-soft), transparent 70%),
    radial-gradient(800px 400px at 0% 110%, color-mix(in srgb, var(--sand) 18%, transparent), transparent 70%);
  overflow: hidden;
}
.hero .wrap {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center;
  padding-block: 72px 56px;
}
.app-icon {
  width: 88px; height: 88px; margin-bottom: 20px;
  filter: drop-shadow(0 8px 18px rgba(31, 110, 190, 0.28));
}
.eyebrow {
  display: inline-block; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
}
.hero h1 { font-size: clamp(2.3rem, 5.2vw, 3.9rem); font-weight: 800; }
.hero h1 span { display: block; }
.hero h1 .muted { color: var(--text-muted); }
.hero .lede { font-size: 1.2rem; color: var(--text-muted); max-width: 34em; margin: 0 0 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px 24px; align-items: center; }
.hero-art { position: relative; height: 560px; }
.hero-art img {
  position: absolute; width: 250px; border-radius: 28px; box-shadow: var(--shadow);
}
.hero-art .back { right: 6%; top: 0; transform: rotate(5deg); }
.hero-art .front { left: 8%; top: 40px; transform: rotate(-4deg); }

/* Sections */
section { padding-block: 80px; }
.section-head { max-width: 680px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); font-weight: 800; }
.section-head p { color: var(--text-muted); font-size: 1.1rem; margin: 0; }
.soft { background: var(--bg-soft); }
.sand { background: var(--bg-sand); }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pillar {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px;
}
.pillar .icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); margin-bottom: 16px;
}
.pillar .icon svg { width: 24px; height: 24px; }
.pillar h3 { font-size: 1.3rem; }
.pillar ul { margin: 0; padding-left: 1.1em; color: var(--text-muted); }
.pillar li + li { margin-top: 8px; }

/* Gallery */
.gallery {
  display: grid; grid-auto-flow: column; grid-auto-columns: 240px; gap: 20px;
  overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 8px 20px 24px; margin-inline: -20px;
  scrollbar-width: thin;
}
.gallery figure { margin: 0; scroll-snap-align: center; }
.gallery img { border-radius: 22px; box-shadow: var(--shadow); }
.gallery figcaption { font-size: 0.92rem; color: var(--text-muted); margin-top: 12px; text-align: center; }
.gallery-hint { text-align: center; color: var(--text-muted); font-size: 0.9rem; margin: 4px 0 0; }

/* Privacy highlights */
.privacy-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.privacy-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px;
}
.privacy-card svg { width: 28px; height: 28px; color: var(--sand); margin-bottom: 12px; }
.privacy-card h3 { font-size: 1.08rem; margin-bottom: 6px; }
.privacy-card p { margin: 0; color: var(--text-muted); font-size: 0.97rem; }
.center { text-align: center; margin-top: 36px; }

/* Long-form pages */
.page-head { padding-block: 64px 32px; background: var(--bg-soft); border-bottom: 1px solid var(--border); }
.page-head h1 { font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 800; margin-bottom: 8px; }
.page-head p { color: var(--text-muted); margin: 0; }
.prose { max-width: 760px; margin: 0 auto; padding-block: 48px 80px; }
.prose h2 { font-size: 1.5rem; margin-top: 2.2em; }
.prose h3 { font-size: 1.15rem; margin-top: 1.6em; }
.prose p, .prose li { color: var(--text); }
.prose ul { padding-left: 1.2em; }
.prose li + li { margin-top: 6px; }
.summary-box {
  background: var(--accent-soft); border-radius: var(--radius); padding: 24px 28px; margin-bottom: 8px;
}
.summary-box h2 { margin-top: 0; font-size: 1.2rem; }
.summary-box ul { margin: 0; }
.table-scroll { overflow-x: auto; margin: 16px 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.96rem; min-width: 520px; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.prose th { color: var(--text-muted); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }

.faq details {
  border: 1px solid var(--border); border-radius: 14px; padding: 4px 20px; background: var(--surface);
}
.faq details + details { margin-top: 12px; }
.faq summary {
  cursor: pointer; font-weight: 600; padding: 14px 0 14px 26px;
  list-style: none; position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: ""; position: absolute; left: 4px; top: calc(14px + 0.8em);
  border-style: solid; border-width: 5px 0 5px 7px;
  border-color: transparent transparent transparent var(--accent);
  transform: translateY(-50%); transition: transform 0.15s ease;
}
.faq details[open] summary::before { transform: translateY(-50%) rotate(90deg); }
.faq details p { margin-top: 0; padding-left: 26px; color: var(--text-muted); }
.contact-card {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 28px; background: var(--bg-sand);
}

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding-block: 32px; color: var(--text-muted); font-size: 0.92rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; }
.site-footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-footer a { color: var(--text-muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); }

/* Responsive */
@media (max-width: 960px) {
  .privacy-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; padding-block: 48px 24px; text-align: center; }
  .hero .lede { margin-inline: auto; }
  .app-icon { margin-inline: auto; width: 76px; height: 76px; }
  .hero-actions { justify-content: center; }
  .hero-art { height: 440px; max-width: 420px; width: 100%; margin: 0 auto; }
  .hero-art img { width: 200px; }
  .pillars { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  section { padding-block: 56px; }
  .site-nav { flex-wrap: nowrap; gap: 0; }
  .site-nav a { padding: 6px 8px; font-size: 0.88rem; }
  .brand { font-size: 1.05rem; gap: 8px; }
  .brand img { width: 28px; height: 28px; }
  .hero-art { height: 380px; }
  .hero-art img { width: 170px; }
  .hero-art .front { left: 2%; }
  .hero-art .back { right: 2%; }
  .privacy-grid { grid-template-columns: 1fr; }
  .gallery { grid-auto-columns: 72%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}