:root{--bg:#ffffff;--ink:#0f172a;--muted:#64748b;--accent:#7c3aed;--accent2:#22d3ee;--surface:#ffffff;--border:#e5e7eb;--shadow:0 12px 24px rgba(2,6,23,.06)}
:root[data-theme="dark"]{--bg:#0a0f1a;--ink:#e5e7eb;--muted:#94a3b8;--surface:#0f172a;--border:#1f2937}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.7;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial}
.container{max-width:1120px;margin:0 auto;padding:0 18px}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
img{display:block;max-width:100%;height:auto}

header{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);z-index:70}
:root[data-theme="dark"] header{background:rgba(15,23,42,.92)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:10px 0;gap:10px}
.brand{display:flex;align-items:center;gap:10px}
.brand .logo{height:28px;width:28px}
.brand .name{font-weight:800;line-height:1}
.brand .tag{color:var(--muted);font-size:12px}
.right{display:flex;align-items:center;gap:10px}
.menu{display:flex;gap:12px;align-items:center}
.menu a{font-weight:600}
.btn{display:inline-block;background:linear-gradient(120deg,var(--accent),#f59e0b);color:#fff;padding:10px 14px;border-radius:12px;font-weight:700;box-shadow:var(--shadow);border:none}
.btn.secondary{background:#111827;color:#fff}

.hamburger{display:none;border:none;background:#111827;color:#fff;border-radius:12px;padding:10px 12px;font-weight:800}
@media(max-width:820px){.menu,.cta-desktop{display:none}.hamburger{display:block}}

.drawer{position:fixed;top:0;right:-100%;bottom:0;width:86%;max-width:420px;background:var(--surface);border-left:1px solid var(--border);box-shadow:var(--shadow);z-index:90;transition:right .25s ease}
.drawer.open{right:0}
.backdrop{position:fixed;inset:0;background:rgba(0,0,0,.45);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:80}
.backdrop.show{opacity:1;pointer-events:auto}
.drawer .head{display:flex;align-items:center;justify-content:space-between;padding:14px;border-bottom:1px solid var(--border)}
.drawer .links{display:grid;gap:6px;padding:14px}
.drawer .links a{display:block;padding:12px;border-radius:12px;border:1px solid var(--border);background:#f8fafc}
:root[data-theme="dark"] .drawer .links a{background:#0f172a}

.theme{display:flex;align-items:center;gap:8px}
.switch{position:relative;width:54px;height:28px;background:#111827;border-radius:999px;cursor:pointer;box-shadow:inset 0 0 0 2px rgba(0,0,0,.05)}
.switch .dot{position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:transform .2s ease}
:root[data-theme="dark"] .switch{background:#fde68a}:root[data-theme="dark"] .switch .dot{transform:translateX(26px)}

.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;padding:16px 0 6px}
.hero h1{font-size:36px;line-height:1.15;margin:0 0 8px}
.hero p{font-size:17px;color:var(--muted)}
.carousel{position:relative;overflow:hidden;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);margin:10px 0}
.slide{display:none}.slide.active{display:block}
.slide img{width:100%;height:auto;display:block}
.slide .cap{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(180deg,rgba(0,0,0,0.10) 0,rgba(0,0,0,0.75) 65%,rgba(0,0,0,0.90) 100%);color:#fff;padding:18px}
.slide .cap h2,.slide .cap a,.slide .cap .btn{text-shadow:0 2px 8px rgba(0,0,0,.5)}
.carousel .dots{position:absolute;left:0;right:0;bottom:8px;display:flex;gap:6px;justify-content:center}
.dot{width:10px;height:10px;border-radius:999px;background:#e5e7eb;border:1px solid #111827;opacity:.8}.dot.active{background:#7c3aed;opacity:1}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow)}.card .inner{padding:14px}
.kicker{text-transform:uppercase;letter-spacing:.18em;font-size:12px;color:var(--accent2);font-weight:800}
.meta{font-size:13px;color:var(--muted)}

.prose p{margin:1em 0}.prose h2{margin-top:1.1em}ul,ol{padding-left:1.25rem}
.callout{border-left:4px solid #22d3ee;background:#ecfeff;padding:10px 12px;border-radius:10px}
.tip{border-left:4px solid #16a34a;background:#ecfdf5}.warn{border-left:4px solid #f59e0b;background:#fffbeb}
.post-layout{display:grid;grid-template-columns:1fr 320px;gap:22px}.sidebar{position:sticky;top:86px;height:fit-content}

footer{margin-top:48px;border-top:1px solid var(--border)}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px;padding:22px 0}
footer ul{list-style:none;margin:0;padding:0}footer li{margin:8px 0}
footer .brand-mini{display:flex;align-items:center;gap:10px}
footer .copy{padding:12px 0;color:#64748b;font-size:13px;border-top:1px solid var(--border)}

@media(max-width:820px){
  .container{padding:0 14px}
  .brand .tag{display:none}
  .hero{grid-template-columns:1fr;gap:12px}
  .hero h1{font-size:24px}
  .grid{grid-template-columns:1fr}
  .post-layout{grid-template-columns:1fr}.sidebar{position:static}
  footer .cols{grid-template-columns:1fr;gap:10px}
}

/* Cookie banner */
.cookie-banner{position:fixed;left:12px;right:12px;bottom:12px;background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:14px;z-index:120;display:none}
.cookie-banner.show{display:block}
.cookie-inner{padding:14px;display:grid;gap:10px}
.cookie-actions{display:flex;gap:10px;flex-wrap:wrap}
.cookie-actions .btn{padding:10px 12px;border-radius:10px}