/* books.jakubjirak.com — dark editorial-tech sales site */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,900&family=Hanken+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg: #100e0b;
  --bg-2: #17140f;
  --bg-3: #1f1b15;
  --text: #f3ece0;
  --muted: #a89e8d;
  --faint: #6f6657;
  --accent: #e8b23a;
  --accent-deep: #c4862a;
  --ember: #e2683c;
  --line: rgba(243, 236, 224, 0.10);
  --line-2: rgba(243, 236, 224, 0.18);
  --display: 'Fraunces', Georgia, serif;
  --body: 'Hanken Grotesk', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --maxw: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(900px 600px at 82% -8%, rgba(232, 178, 58, 0.10), transparent 60%),
    radial-gradient(700px 500px at -5% 12%, rgba(226, 104, 60, 0.06), transparent 60%),
    repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 84px);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* film grain */
body::after {
  content: ""; position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  opacity: 0.04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 3rem); }

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: linear-gradient(to bottom, rgba(16, 14, 11, 0.92), rgba(16, 14, 11, 0.6));
  border-bottom: 1px solid var(--line);
}
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.18em; text-transform: uppercase; display: flex; align-items: center; gap: 0.6rem; }
.brand b { color: var(--accent); font-weight: 700; }
.brand .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.topbar nav { display: flex; gap: 1.6rem; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.topbar nav a:hover { color: var(--accent); }

/* ---------- eyebrow / section labels ---------- */
.eyebrow {
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--accent); display: inline-flex; align-items: center; gap: 0.7rem;
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--accent); display: inline-block; }

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 2.5rem; flex-wrap: wrap; }
.section-head h2 { font-family: var(--display); font-weight: 500; font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -0.02em; }
.section-head .count { font-family: var(--mono); font-size: 0.8rem; color: var(--faint); letter-spacing: 0.1em; }

/* ---------- hero (featured book) ---------- */
.hero { position: relative; padding: clamp(3rem, 8vw, 6.5rem) 0 clamp(2.5rem, 5vw, 4rem); }
.hero-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }

.cover-stage { position: relative; display: flex; justify-content: center; perspective: 1400px; }
.cover-stage img {
  width: min(100%, 360px); border-radius: 6px;
  box-shadow: -28px 34px 70px rgba(0,0,0,0.6), 0 0 0 1px rgba(243,236,224,0.06);
  transform: rotateY(14deg) rotateX(3deg) rotateZ(-1deg);
  transition: transform 0.6s cubic-bezier(.2,.7,.2,1);
}
.cover-stage::before {
  content: ""; position: absolute; inset: -8% -4% -14% -4%; z-index: -1; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(232,178,58,0.28), transparent 75%); filter: blur(20px);
}
.cover-stage:hover img { transform: rotateY(4deg) rotateX(1deg); }

.hero h1 { font-family: var(--display); font-weight: 600; font-size: clamp(2.6rem, 6.5vw, 4.7rem); line-height: 0.98; letter-spacing: -0.03em; margin: 1.1rem 0 0.5rem; }
.hero .sub { font-family: var(--display); font-style: italic; font-weight: 400; font-size: clamp(1.15rem, 2.4vw, 1.6rem); color: var(--muted); margin-bottom: 1.4rem; }
.hero .pitch { font-size: 1.05rem; color: #d8d0c2; max-width: 46ch; margin-bottom: 1.8rem; }

.award {
  display: inline-flex; align-items: center; gap: 0.6rem; margin-bottom: 0.4rem;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent); border: 1px solid rgba(232,178,58,0.4); border-radius: 999px; padding: 0.4rem 0.85rem;
  background: rgba(232,178,58,0.06);
}

/* ---------- buttons ---------- */
.cta-row { display: flex; gap: 0.9rem; flex-wrap: wrap; align-items: center; }
.btn {
  font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.95rem 1.5rem; border-radius: 4px; display: inline-flex; align-items: center; gap: 0.6rem;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease; cursor: pointer; border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: #1a1206; font-weight: 700; box-shadow: 0 10px 30px rgba(232,178,58,0.25); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(232,178,58,0.38); background: #f0bd48; }
.btn-ghost { border-color: var(--line-2); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-arrow::after { content: "→"; }

/* ---------- credibility ribbon ---------- */
.ribbon { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-top: 1rem; }
.ribbon .wrap { display: flex; gap: clamp(1.5rem,5vw,4rem); flex-wrap: wrap; padding-top: 1.5rem; padding-bottom: 1.5rem; }
.ribbon .stat { display: flex; flex-direction: column; gap: 0.2rem; }
.ribbon .stat b { font-family: var(--display); font-size: 1.7rem; font-weight: 600; }
.ribbon .stat span { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); }

/* ---------- library grid ---------- */
.library { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.card {
  position: relative; display: flex; flex-direction: column; gap: 1.1rem;
  padding: 1.5rem; border: 1px solid var(--line); border-radius: 10px;
  background: linear-gradient(180deg, var(--bg-2), rgba(23,20,15,0.4));
  transition: transform .35s cubic-bezier(.2,.7,.2,1), border-color .35s ease, box-shadow .35s ease;
}
.card:hover { transform: translateY(-6px); border-color: var(--line-2); box-shadow: 0 26px 50px rgba(0,0,0,0.45); }
.card-cover { position: relative; display: flex; justify-content: center; padding: 0.5rem 0; }
.card-cover img {
  width: min(100%, 180px); border-radius: 4px;
  box-shadow: -10px 14px 30px rgba(0,0,0,0.5), 0 0 0 1px rgba(243,236,224,0.05);
  transition: transform .35s ease;
}
.card:hover .card-cover img { transform: translateY(-4px) scale(1.03); }
.badge {
  position: absolute; top: 0; right: 0; font-family: var(--mono); font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; padding: 0.32rem 0.6rem; border-radius: 999px;
}
.badge.new { background: var(--accent); color: #1a1206; }
.badge.preorder { background: transparent; color: var(--ember); border: 1px solid rgba(226,104,60,0.5); }
.card h3 { font-family: var(--display); font-weight: 500; font-size: 1.35rem; line-height: 1.1; letter-spacing: -0.01em; }
.card .csub { color: var(--muted); font-size: 0.92rem; flex: 1; }
.card .more { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); display: inline-flex; align-items: center; gap: 0.45rem; }
.card:hover .more { gap: 0.75rem; }
.card-link { position: absolute; inset: 0; }

/* ---------- detail page ---------- */
.detail { padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(3rem, 6vw, 5rem); }
.back { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); display: inline-flex; gap: 0.5rem; margin-bottom: 2.5rem; }
.back:hover { color: var(--accent); }
.back::before { content: "←"; }
.detail-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(2rem, 6vw, 4.5rem); align-items: start; }
.detail h1 { font-family: var(--display); font-weight: 600; font-size: clamp(2.2rem, 5.5vw, 3.8rem); line-height: 1.0; letter-spacing: -0.03em; margin: 0.8rem 0 0.5rem; }
.detail .sub { font-family: var(--display); font-style: italic; color: var(--muted); font-size: clamp(1.1rem, 2.2vw, 1.45rem); margin-bottom: 1.5rem; }
.detail .lead { font-size: 1.08rem; color: #dcd4c6; margin-bottom: 2rem; }

.status-pill { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; padding: 0.4rem 0.85rem; border-radius: 999px; display: inline-flex; gap: 0.5rem; align-items: center; }
.status-pill.new { background: rgba(232,178,58,0.12); color: var(--accent); border: 1px solid rgba(232,178,58,0.35); }
.status-pill.preorder { background: rgba(226,104,60,0.1); color: var(--ember); border: 1px solid rgba(226,104,60,0.4); }
.status-pill.live { background: rgba(243,236,224,0.06); color: var(--muted); border: 1px solid var(--line-2); }

.learn { margin: 0.5rem 0 2.2rem; }
.learn h4 { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin-bottom: 1.2rem; }
.learn ol { list-style: none; display: grid; gap: 0.9rem; }
.learn li { display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: baseline; padding-bottom: 0.9rem; border-bottom: 1px solid var(--line); }
.learn li i { font-family: var(--mono); font-style: normal; font-size: 0.78rem; color: var(--faint); }
.learn li span { color: #ddd5c7; }

.detail .cover-stage img { transform: rotateY(10deg) rotateX(2deg); width: min(100%, 320px); }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); padding: 3rem 0; margin-top: 2rem; }
footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
footer .fnav { display: flex; gap: 1.5rem; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
footer .fnav a:hover { color: var(--accent); }
footer .copy { font-family: var(--mono); font-size: 0.72rem; color: var(--faint); letter-spacing: 0.06em; }

/* ---------- load reveal ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.reveal { opacity: 0; animation: rise 0.7s cubic-bezier(.2,.7,.2,1) forwards; }
.reveal.d1 { animation-delay: 0.08s; }
.reveal.d2 { animation-delay: 0.16s; }
.reveal.d3 { animation-delay: 0.24s; }
.reveal.d4 { animation-delay: 0.32s; }
@media (prefers-reduced-motion: reduce) { .reveal { animation: none; opacity: 1; } .cover-stage img { transition: none; } html { scroll-behavior: auto; } }

/* ---------- responsive ---------- */
@media (max-width: 920px) {
  .hero-grid, .detail-grid { grid-template-columns: 1fr; }
  .cover-stage { order: -1; }
  .cover-stage img, .detail .cover-stage img { transform: none; width: min(70%, 280px); }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .topbar nav { display: none; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
}