:root,[data-theme=light]{--bg: #f0f2f5;--bg-alt: #f7f8fa;--card: #ffffff;--card-hover: #f7f8fa;--border: #e5e7eb;--text: #1a1a2e;--muted: #6b7280;--accent: #6366f1;--accent-hover: #4f46e5;--accent-2: #4f46e5;--accent-soft: rgba(99, 102, 241, .1);--accent-border: rgba(99, 102, 241, .35);--code-bg: #1e1e2e;--code-text: #e2e8f0;--gradient: linear-gradient(100deg, #283378 0%, #4f46e5 55%, #6366f1 100%);--hero-glow-1: rgba(99, 102, 241, .18);--hero-glow-2: rgba(61, 77, 179, .12);--header-bg: rgba(247, 248, 250, .85);--btn-glow: rgba(99, 102, 241, .35);--radius: 14px;--font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;--mono: "JetBrains Mono", ui-monospace, "Cascadia Code", monospace}[data-theme=dark]{--bg: #0f0f1a;--bg-alt: #16162a;--card: #1a1a2e;--card-hover: #252542;--border: #2d2d4a;--text: #e2e8f0;--muted: #94a3b8;--accent: #818cf8;--accent-hover: #6366f1;--accent-2: #a5b4fc;--accent-soft: rgba(129, 140, 248, .12);--accent-border: rgba(129, 140, 248, .4);--code-bg: #0d0d1a;--code-text: #e2e8f0;--gradient: linear-gradient(100deg, #6366f1 0%, #818cf8 55%, #a5b4fc 100%);--hero-glow-1: rgba(129, 140, 248, .16);--hero-glow-2: rgba(99, 102, 241, .12);--header-bg: rgba(15, 15, 26, .8);--btn-glow: rgba(99, 102, 241, .45)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:5rem}body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background .2s ease,color .2s ease}a{color:var(--accent);text-decoration:none}.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}section{padding:5.5rem 0}.section-title{font-size:clamp(1.7rem,3.5vw,2.3rem);font-weight:800;letter-spacing:-.02em;margin-bottom:.75rem}.section-sub{color:var(--muted);max-width:46rem;margin-bottom:2.75rem}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.4rem;border-radius:10px;font-weight:600;font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);box-shadow:0 6px 24px var(--btn-glow)}.btn-ghost{background:var(--card);border-color:var(--border);color:var(--text)}.btn-ghost:hover{background:var(--card-hover)}pre{background:var(--code-bg);color:var(--code-text);border:1px solid var(--border);border-radius:10px;padding:1rem 1.2rem;overflow-x:auto;font-family:var(--mono);font-size:.85rem;line-height:1.7}::selection{background:var(--accent-soft)}