/* TechDeck — tech-deck.app */
:root {
  --bg: #0b0f17;
  --bg-raised: #131a26;
  --line: #243044;
  --text: #e8edf5;
  --text-soft: #a3aec2;
  --accent: #1e88e5;
  --accent-soft: #64b5f6;
  --radius: 18px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
}
a { color: var(--accent-soft); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 24px; }

header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 8px 16px; min-height: 64px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 20px; letter-spacing: -0.01em; color: var(--text); }
.brand span { color: var(--accent); }
nav.site { display: flex; gap: 22px; font-size: 15px; flex-wrap: wrap; }
nav.site a { color: var(--text-soft); }
nav.site a[aria-current="page"], nav.site a:hover { color: var(--text); text-decoration: none; }

.hero { padding: 88px 0 56px; }
.hero h1 { font-size: clamp(36px, 6vw, 58px); line-height: 1.05; letter-spacing: -0.025em; margin: 0 0 18px; }
.hero p.lead { font-size: 21px; color: var(--text-soft); max-width: 680px; margin: 0; }
.app-hero { display: flex; gap: 28px; align-items: center; padding: 72px 0 40px; flex-wrap: wrap; }
.app-hero img { width: 128px; height: 128px; border-radius: 28px; }
.app-hero h1 { font-size: clamp(32px, 5vw, 48px); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 6px; }
.app-hero p { margin: 0; color: var(--text-soft); font-size: 19px; }

.button { display: inline-block; margin-top: 18px; padding: 11px 22px; border-radius: 999px; background: var(--accent); color: #fff; font-weight: 600; font-size: 16px; }
.button:hover { text-decoration: none; background: #2b95f0; }
.button.quiet { background: transparent; border: 1px solid var(--line); color: var(--text); margin-left: 8px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; padding-bottom: 72px; }
.card { background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; gap: 10px; }
.card img { width: 72px; height: 72px; border-radius: 16px; }
.card h2 { margin: 6px 0 0; font-size: 22px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--text-soft); }
.card .links { margin-top: auto; padding-top: 10px; display: flex; gap: 18px; font-size: 15px; flex-wrap: wrap; }

section.block { padding: 36px 0; border-top: 1px solid var(--line); }
section.block h2 { font-size: 26px; letter-spacing: -0.01em; margin: 0 0 16px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px 36px; margin: 0; padding: 0; list-style: none; }
.features li { color: var(--text-soft); }
.features li strong { color: var(--text); display: block; }

.prose { max-width: 720px; padding: 56px 0 72px; }
.prose h1 { font-size: clamp(30px, 5vw, 42px); letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 8px; }
.prose .updated { color: var(--text-soft); margin: 0 0 32px; }
.prose h2 { font-size: 22px; margin: 36px 0 8px; }
.prose p, .prose li { color: var(--text-soft); }
.prose strong { color: var(--text); }
.contact { background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 28px; margin: 28px 0; }
.contact p { margin: 0; }
details { border-bottom: 1px solid var(--line); padding: 14px 0; }
details summary { cursor: pointer; font-weight: 600; color: var(--text); }
details p { margin: 10px 0 0; }

footer.site { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--text-soft); font-size: 14px; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer.site nav { display: flex; gap: 18px; flex-wrap: wrap; }
footer.site a { color: var(--text-soft); }
.fine { color: var(--text-soft); font-size: 13px; max-width: 760px; }