:root{--bg: #0f1221;--panel: #171a2b;--panel-2: #1f2440;--text: #e7e9f1;--muted: #9aa3b2;--brand: #6ea8fe;--brand-strong: #4f8dff;--border: #2a2f47;--shadow: 0 10px 24px rgba(0,0,0,.25)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,Liberation Sans,sans-serif;background:linear-gradient(180deg,var(--bg),#0b0d18 60%);color:var(--text)}.container{max-width:1100px;margin:0 auto;padding:0 16px}.app-shell{min-height:100%;display:grid;grid-template-rows:auto 1fr auto}.navbar{position:sticky;top:0;z-index:30;background:#0f1221cc;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:56px}.brand a{color:var(--text);font-weight:700;text-decoration:none;letter-spacing:.2px}.nav-list{list-style:none;margin:0;padding:0;display:flex;gap:12px}.nav-link{display:inline-block;padding:8px 12px;text-decoration:none;color:var(--text);border-radius:8px;border:1px solid transparent}.nav-link:hover{background:var(--panel)}.nav-link.active{border-color:var(--brand);background:linear-gradient(180deg,var(--panel-2),var(--panel))}.main-area{padding:24px 0 40px}.site-header{border:1px solid var(--border);background:linear-gradient(180deg,var(--panel-2),var(--panel));border-radius:12px;box-shadow:var(--shadow);margin:12px 0 24px}.site-header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px}.site-title{margin:0;font-size:28px}.site-subtitle{margin:6px 0 0;color:var(--muted)}.footer{border-top:1px solid var(--border);background:#0f1221cc}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;height:60px}.footer-links{list-style:none;margin:0;padding:0;display:flex;gap:12px}.footer a{color:var(--muted);text-decoration:none}.footer a:hover{color:var(--text)}.card{border:1px solid var(--border);background:linear-gradient(180deg,var(--panel-2),var(--panel));border-radius:12px;padding:18px 20px;box-shadow:var(--shadow)}.btn{display:inline-block;padding:8px 12px;background:var(--brand);color:#091022;text-decoration:none;border-radius:8px;border:1px solid rgba(255,255,255,.12);font-weight:600}.btn:hover{background:var(--brand-strong)}