:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --border: #d2d2d7;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --card: #ffffff;
  --radius: 18px;
  --max: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg-alt: #111113;
    --text: #f5f5f7;
    --muted: #a1a1a6;
    --border: #2c2c2e;
    --accent: #2997ff;
    --accent-hover: #47a6ff;
    --card: #1c1c1e;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 64px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 52px; }
.logo { color: var(--text); font-weight: 600; letter-spacing: -0.01em; }
.logo:hover { text-decoration: none; }
.nav nav a { color: var(--text); font-size: 14px; margin-left: 24px; opacity: 0.8; }
.nav nav a:hover { opacity: 1; text-decoration: none; }

/* Hero */
.hero { padding: 120px 0 100px; text-align: center; }
.eyebrow { color: var(--accent); font-weight: 600; font-size: 17px; margin-bottom: 12px; }
h1 {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 700;
}
.lead { max-width: 640px; margin: 24px auto 0; font-size: clamp(17px, 2.2vw, 21px); color: var(--muted); }
.cta { margin-top: 36px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.platforms { list-style: none; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 48px; }
.platforms li {
  font-size: 13px; color: var(--muted);
  border: 1px solid var(--border); border-radius: 999px; padding: 4px 14px;
}

/* Buttons */
.btn {
  display: inline-block; padding: 12px 24px; border-radius: 999px;
  font-size: 17px; font-weight: 500; transition: background 0.2s, transform 0.2s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { color: var(--accent); border: 1px solid var(--accent); }
.btn-large { font-size: 19px; padding: 16px 32px; margin-top: 8px; }

/* Sections */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }
h2 { font-size: clamp(32px, 5vw, 48px); letter-spacing: -0.02em; line-height: 1.1; }
h3 { font-size: 21px; letter-spacing: -0.01em; }
.section-lead { color: var(--muted); font-size: 19px; margin-top: 12px; }

/* Apps */
.app-grid {
  display: grid; gap: 20px; margin-top: 48px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.app-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; display: flex; flex-direction: column; gap: 20px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.app-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.08); }
.app-card-empty { border-style: dashed; background: transparent; }
.app-icon {
  width: 72px; height: 72px; border-radius: 22.37%; /* iOS-style squircle approximation */
  background: linear-gradient(135deg, var(--c1), var(--c2));
  display: grid; place-items: center; color: #fff; font-size: 32px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}
.app-icon img { width: 100%; height: 100%; border-radius: inherit; display: block; }
.app-icon-img { background: none; }
.app-body p { color: var(--muted); margin: 6px 0 16px; }
.badge {
  display: inline-block; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--muted); background: var(--bg-alt); border-radius: 999px; padding: 4px 12px;
}
.badge-live { color: #fff; background: var(--accent); }

/* About */
.about { display: grid; grid-template-columns: 1.4fr 1fr; gap: 64px; align-items: start; }
.about p { color: var(--muted); font-size: 17px; margin-top: 16px; }
.skills { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.skills ul { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.skills li { font-size: 14px; background: var(--bg-alt); border-radius: 8px; padding: 6px 12px; }

/* Contact */
.contact { text-align: center; }
.contact .section-lead { margin-bottom: 28px; }
.socials { list-style: none; display: flex; gap: 24px; justify-content: center; margin-top: 32px; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 24px 0; font-size: 13px; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer nav a { color: var(--muted); margin-left: 20px; }
.footer nav a:first-child { margin-left: 0; }

/* Legal / support pages */
.page { padding: 80px 0 100px; }
.page .container { max-width: 720px; }
.page h1 { font-size: clamp(36px, 6vw, 52px); }
.page h2 { font-size: 24px; margin-top: 40px; }
.page p, .page li { color: var(--muted); font-size: 17px; margin-top: 12px; }
.page ul { padding-left: 20px; }
.page .updated { font-size: 14px; }

@media (max-width: 760px) {
  .about { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 80px 0 64px; }
  .section { padding: 72px 0; }
  .nav nav a { margin-left: 16px; }
  h1 br { display: none; }
}