:root{
  --bg: #fffaf6; --surface: #ffffff; --ink: #1a1a1a; --muted: #6b7280;
  --accent: #b3262e; --accent-2: #f1e8de; --accent-3: #e8f1eb;
  --radius: 18px; --shadow: 0 6px 24px rgba(0,0,0,.08);
}
*{box-sizing:border-box} html,body{margin:0;padding:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial;color:var(--ink);background:var(--bg);line-height:1.6}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(6px);border-bottom:1px solid #eee}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.brand{display:flex;gap:10px;align-items:center;font-weight:700;color:var(--ink);text-decoration:none}
.logo{width:28px;height:28px;fill:var(--accent)}
.nav a{margin-left:18px;text-decoration:none;color:var(--ink);font-weight:600}
.nav a:hover{color:var(--accent)}
.menu-toggle{display:none;border:0;background:transparent;font-size:28px;line-height:1}
.hero{position:relative;color:#fff;min-height:72vh;display:grid;place-items:center;text-align:center}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.55)}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(to top, rgba(179,38,46,.65), rgba(0,0,0,.2))}
.hero-content{position:relative;z-index:1}
.hero h1{font-size:clamp(32px,5vw,56px);margin:.2em 0 .4em;font-weight:900}
.lead{max-width:800px;margin:0 auto 20px;font-size:clamp(16px,2.3vw,20px)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.btn{border-radius:999px;padding:12px 18px;text-decoration:none;font-weight:700;display:inline-block;border:2px solid transparent}
.btn.primary{background:var(--accent);color:#fff}
.btn.ghost{border-color:#fff;color:#fff}
.btn.link{color:var(--accent);padding:8px 2px;border:0;text-decoration:underline;text-underline-offset:3px}
.section{padding:56px 0} .section.alt{background:var(--accent-3)}
.section-head h2{margin:0;font-size:clamp(24px,4vw,36px)}
.section-head .muted{margin:.2em 0 0;color:var(--muted)}
.columns.two{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start}
.grid{display:grid;gap:10px} .grid-3{grid-template-columns:repeat(3,1fr)} .grid-4{grid-template-columns:repeat(4,1fr)}
figure{margin:0;overflow:hidden;border-radius:12px;box-shadow:var(--shadow);background:#fff}
figure img{width:100%;height:100%;display:block;object-fit:cover}
.muted{color:var(--muted)} .tiny{font-size:.9rem}
.checklist{padding-left:20px;margin:.4em 0} .checklist li{margin:.3em 0}
.steps{padding-left:18px;margin:.4em 0} .steps li{margin:.35em 0}
.video-card{margin-top:24px;background:var(--surface);padding:16px;border-radius:14px;box-shadow:var(--shadow)}
.video-aspect{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;border-radius:10px;background:#f3f4f6}
.video-aspect iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.code{background:#0b1020;color:#e2e8f0;border-radius:12px;padding:12px;overflow:auto;box-shadow:var(--shadow)}
.timeline{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-top:10px}
.titem{background:var(--surface);border-radius:14px;padding:14px;box-shadow:var(--shadow);border:1px solid #eee}
.titem span{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:999px;background:var(--accent);color:#fff;margin-bottom:6px;font-weight:800}
.cta-block{margin-top:26px;text-align:center;background:linear-gradient(180deg,var(--surface),var(--accent-2));border:1px solid #eee;border-radius:16px;padding:20px;box-shadow:var(--shadow)}
.site-footer{padding:28px 0;text-align:center;color:var(--muted)}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center;z-index:100}
.lightbox img{max-width:92vw;max-height:86vh;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.lightbox .close{position:absolute;top:14px;right:14px;font-size:36px;border:0;background:transparent;color:#fff;cursor:pointer}
@media (max-width:900px){
  .columns.two{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .nav{display:none;position:absolute;right:16px;top:64px;background:#fff;border:1px solid #eee;border-radius:12px;box-shadow:var(--shadow);padding:10px}
  .nav a{display:block;margin:8px}
  .menu-toggle{display:block}
  .btn.ghost{border-color:#fff;color:#fff;background:var(--accent)}
}