:root{color:#111522;background:radial-gradient(circle at top left,rgba(243,198,83,.22),transparent 28%),radial-gradient(circle at right center,rgba(23,102,255,.16),transparent 30%),linear-gradient(180deg,#fffaf0,#f7f7f1 48%,#eef3fb);font-family:IBM Plex Sans,Segoe UI,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--ink: #111522;--muted: #5f6678;--line: rgba(17, 21, 34, .12);--panel: rgba(255, 255, 255, .78);--panel-strong: rgba(255, 255, 255, .9);--accent: #1f58d5;--accent-soft: rgba(31, 88, 213, .12);--warning: #aa5a10}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;min-width:320px}a{color:inherit;text-decoration:none}.portal-shell{min-height:100vh;padding:32px 20px 48px}.portal-header,.portal-main{max-width:1240px;margin:0 auto}.portal-header{display:grid;gap:24px}.portal-brand{max-width:760px}.portal-kicker,.hero-label,.content-eyebrow,.catalog-audience,.rail-title{margin:0;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--warning)}.portal-brand h1{margin:10px 0 12px;max-width:12ch;font-size:clamp(2.7rem,7vw,5.4rem);line-height:.95;letter-spacing:-.05em}.portal-copy{margin:0;max-width:62ch;font-size:1.08rem;color:var(--muted)}.portal-nav{display:flex;flex-wrap:wrap;gap:10px}.portal-link{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:#ffffffad;color:var(--muted);transition:transform .14s ease,background .14s ease,color .14s ease}.portal-link:hover,.portal-link.active{background:var(--panel-strong);color:var(--ink);transform:translateY(-1px)}.portal-main{padding-top:24px}.hero-card,.content-card,.stack-card,.rail-card,.catalog-card,.metric-card,.portal-panel{border:1px solid var(--line);border-radius:28px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.hero-card{display:grid;gap:20px;padding:28px;background:linear-gradient(135deg,#fffffff0,#f6f8fdcc)}.hero-card h2{margin:8px 0 0;max-width:18ch;font-size:clamp(1.8rem,3vw,3rem);line-height:1;letter-spacing:-.04em}.hero-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.metric-card{padding:16px 18px;background:var(--accent-soft)}.metric-card span{display:block;color:var(--muted);font-size:.88rem}.metric-card strong{display:block;margin-top:4px;font-size:1.35rem}.portal-grid{display:grid;gap:18px;margin-top:18px}.portal-panel{background:var(--panel);padding:24px}.page-stack{display:grid;gap:18px}.content-card,.stack-card,.rail-card,.catalog-card{background:var(--panel);padding:24px}.content-card h2,.stack-card h3,.catalog-card h3{margin:10px 0 12px;line-height:1;letter-spacing:-.03em}.content-summary,.stack-card p,.catalog-detail,.rail-card li,.content-list li{color:var(--muted)}.content-list,.rail-card ul{margin:16px 0 0;padding-left:18px}.catalog-strip{display:grid;gap:14px}.catalog-price{margin:0 0 10px;font-weight:700;color:var(--accent)}.portal-rail{display:grid;gap:18px}.not-found{display:grid;place-items:center;min-height:100vh;padding:24px;text-align:center}.back-link{margin-top:18px;color:var(--accent);font-weight:600}@media(min-width:900px){.portal-grid{grid-template-columns:minmax(0,1.7fr) minmax(280px,.8fr)}.hero-card{grid-template-columns:minmax(0,1.5fr) minmax(320px,.9fr);align-items:end}.catalog-strip{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:760px){.portal-shell{padding:20px 14px 32px}.hero-metrics{grid-template-columns:1fr}.portal-panel,.content-card,.stack-card,.rail-card,.catalog-card,.hero-card{border-radius:22px;padding:20px}}