:root {
  --bg: #ffffff;
  --bg-alt: #f6f7fb;
  --text: #111827;
  --muted: #5b6475;
  --accent: #4f46e5;
  --accent-soft: #eef2ff;
  --border: #e5e7eb;
  --card: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d12;
    --bg-alt: #11141b;
    --text: #f3f4f6;
    --muted: #9aa3b2;
    --accent: #818cf8;
    --accent-soft: #1c1f35;
    --border: #232733;
    --card: #141821;
  }
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* Nav */
header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-weight: 800; font-size: 1.1rem; letter-spacing: -0.02em; }
.logo span { color: var(--accent); }
nav ul { display: flex; gap: 28px; list-style: none; }
nav ul a { color: var(--muted); font-weight: 500; font-size: 0.95rem; transition: color .2s; }
nav ul a:hover { color: var(--text); }

/* Hero */
.hero { padding: 110px 0 90px; text-align: center; }
.badge {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
  font-size: 0.85rem; font-weight: 600; margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 800;
  letter-spacing: -0.035em; line-height: 1.1; margin-bottom: 20px;
}
.hero h1 span { color: var(--accent); }
.hero p { font-size: 1.2rem; color: var(--muted); max-width: 620px; margin: 0 auto 36px; }
.btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  padding: 13px 26px; border-radius: 10px; font-weight: 600;
  transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 20px -6px var(--accent); }
.btn-ghost { border: 1px solid var(--border); }

/* Sections */
section { padding: 90px 0; }
section.alt { background: var(--bg-alt); }
.eyebrow { color: var(--accent); font-weight: 700; font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 10px; }
h2 { font-size: clamp(1.8rem, 4vw, 2.4rem); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 16px; }
.lead { color: var(--muted); font-size: 1.1rem; max-width: 640px; margin-bottom: 48px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 28px; transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); font-size: 1.4rem; margin-bottom: 18px;
}
.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 0.97rem; }
.tag { display: inline-block; font-size: 0.75rem; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 3px 10px; border-radius: 999px; margin-top: 14px; }

/* About */
.about { display: grid; grid-template-columns: 1fr 1.4fr; gap: 56px; align-items: center; }
.avatar {
  aspect-ratio: 1; border-radius: 24px;
  background: linear-gradient(135deg, var(--accent), #06b6d4);
  display: grid; place-items: center; color: #fff; font-size: 5rem; font-weight: 800;
}
.skills { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.skills span { border: 1px solid var(--border); padding: 6px 14px; border-radius: 8px; font-size: 0.9rem; font-weight: 500; }
.about p { color: var(--muted); margin-bottom: 14px; font-size: 1.05rem; }

/* Contact */
.contact { text-align: center; }
.contact .lead { margin: 0 auto 32px; }

footer { border-top: 1px solid var(--border); padding: 32px 0; color: var(--muted); font-size: 0.9rem; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

@media (max-width: 720px) {
  nav ul { gap: 18px; }
  nav ul li:nth-child(n+3) { display: none; }
  .about { grid-template-columns: 1fr; gap: 32px; }
  .avatar { max-width: 220px; }
  .hero { padding: 80px 0 60px; }
  section { padding: 64px 0; }
}

/* Footer links */
footer nav.links { display: flex; gap: 20px; height: auto; }
footer nav.links a:hover { color: var(--text); }
nav ul a.active { color: var(--text); }

/* Content pages (privacy, support) */
.page { max-width: 760px; padding-top: 72px; padding-bottom: 90px; }
.page h1 { font-size: clamp(2rem, 5vw, 2.8rem); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 8px; }
.page .updated { color: var(--muted); margin-bottom: 40px; }
.page h2 { font-size: 1.35rem; margin: 40px 0 12px; letter-spacing: -0.02em; }
.page h3 { font-size: 1.05rem; margin: 24px 0 6px; }
.page p, .page li { color: var(--muted); margin-bottom: 12px; }
.page ul { padding-left: 22px; margin-bottom: 12px; }
.page a { color: var(--accent); font-weight: 500; }
.page a:hover { text-decoration: underline; }
.page strong { color: var(--text); }
.callout { background: var(--accent-soft); border-radius: 16px; padding: 28px; margin: 32px 0; }
.callout p { color: var(--text); margin-bottom: 16px; }
.page .callout .btn { color: #fff; display: inline-block; }
.page .callout .btn:hover { text-decoration: none; }
details { border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; margin-bottom: 12px; background: var(--card); }
details summary { cursor: pointer; font-weight: 600; color: var(--text); }
details[open] summary { margin-bottom: 10px; }
details p { margin-bottom: 0; }

/* App icons (source images have white corners, so crop them) */
.app-icon {
  width: 72px; height: 72px; border-radius: 22%; overflow: hidden;
  margin-bottom: 18px; flex-shrink: 0;
  box-shadow: 0 6px 18px -8px rgba(0,0,0,.45);
}
.app-icon img { width: 100%; height: 100%; display: block; transform: scale(1.1); }
.app-icon.small { width: 40px; height: 40px; margin-bottom: 0; }
.app-heading { display: flex; align-items: center; gap: 14px; }