:root{
  --rail:#0ea5a6; --bg:#f7fafc; --paper:rgba(255,255,255,.85); --ink:#14354a; --muted:#6b7f8b; --border:#dfeaf1;
  --brand:#136f73; --accent:#4e8ef7; --ok:#16a34a; --err:#b91c1c;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(120deg,#f8fbff,#eef6fb) url('assets/img/texture_noise.png') center/cover no-repeat;color:var(--ink)}
body{display:grid;grid-template-columns:320px 1fr;min-height:100vh;font-family:Inter, ui-sans-serif, system-ui, Segoe UI, Roboto, 'Noto Sans', sans-serif}
a{color:#0b6b85;text-decoration:none}
a:hover{text-decoration:underline}
.sidebar{background:linear-gradient(180deg,var(--rail),#0a5a5d);color:#eaffff;position:sticky;top:0;height:100vh;padding:22px 18px;display:flex;flex-direction:column;gap:18px}
.brand{display:flex;gap:12px;align-items:center}
.brand img{width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.25)}
.brand strong{font-weight:900;letter-spacing:.3px}
.brand small{opacity:.85}
.nav{display:flex;flex-direction:column;gap:8px;margin-top:8px}
.nav a{color:#e6ffff;padding:10px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06)}
.nav a.active,.nav a:hover{background:rgba(255,255,255,.16)}
.callout{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);border-radius:14px;padding:12px}
.main{padding:26px}
.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:22px;align-items:center}
.glass{background:var(--paper);backdrop-filter: blur(8px);border:1px solid var(--border);border-radius:20px;padding:18px;box-shadow:0 8px 30px rgba(0,0,0,.08)}
h1,h2,h3{font-family: ui-serif, Georgia, serif}
h1{font-size:40px;margin:0 0 8px}
.lead{font-size:18px;color:var(--muted)}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.badge{border:1px solid var(--border);border-radius:999px;padding:6px 10px;color:#3b6475;font-size:12px;background:#fff}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.item img{width:100%;height:160px;object-fit:cover;border-radius:12px;border:1px solid var(--border);margin-bottom:8px}
.section{margin:24px 0}
.article{background:var(--paper);border:1px solid var(--border);border-radius:20px;padding:24px;line-height:1.75}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px;border-bottom:1px solid var(--border);text-align:left}
.dir{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.card{background:var(--paper);border:1px solid var(--border);border-radius:16px;padding:16px}
footer{margin-top:24px;color:var(--muted);font-size:14px}
hr{border:0;border-top:1px solid var(--border);margin:20px 0}
@media (max-width: 1100px){body{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.hero{grid-template-columns:1fr}.grid-3{grid-template-columns:1fr}.dir{grid-template-columns:1fr}}