:root{
  --bg:#f6fafc; --card:#fff; --ink:#0e2333; --muted:#4b6472;
  --brand1:#5ec6ff; --brand2:#7ad8a5; --accent:#4cc39a;
  --shadow:0 8px 24px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica Neue,Arial;
  background:var(--bg);color:var(--ink);line-height:1.5}
.container{max-width:1100px;margin:0 auto;padding:24px}
.header{display:flex;align-items:center;gap:16px;justify-content:space-between;position:relative}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit}
.brand img{height:40px}
.brand span{font-weight:800;font-size:1.25rem}
nav a{margin-left:16px;text-decoration:none;color:var(--muted)}
nav a:hover{text-decoration:underline}
.hero{margin-top:16px;background:linear-gradient(135deg,var(--brand1),var(--brand2));color:#07202b;border-radius:18px;padding:28px;box-shadow:var(--shadow)}
.hero h1{margin:0 0 8px;font-size:2.2rem}
.hero p{margin:0 0 16px;color:#083041}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.badge{background:rgba(255,255,255,.9);color:#083041;border-radius:999px;padding:6px 10px;font-size:.85rem}
.grid{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:900px){.grid{grid-template-columns:2fr 1fr}}
.card{background:var(--card);border-radius:14px;padding:16px;box-shadow:var(--shadow)}
.card h2{margin:0 0 8px;font-size:1.25rem}
small.muted{color:var(--muted)}
.footer{margin:32px auto 60px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center}
.footer p{margin:0;color:var(--muted);font-size:.95rem}
.footer a{color:inherit}
.notice{background:#fff;border-left:4px solid #ffc107;padding:10px;border-radius:8px;margin:10px 0;color:#6b5a00}
.kicker{letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:#205d6d;font-size:.8rem}
ul.clean{margin:6px 0 0 18px;padding:0}
/* Chat */
.chat-wrap{display:flex;flex-direction:column;height:520px;border:1px solid #e5eef2;border-radius:12px;overflow:hidden}
.chat-log{flex:1;overflow:auto;padding:12px;background:#f9fcfe}
.msg{max-width:80%;margin:8px 0;padding:12px 14px;border-radius:14px;box-shadow:0 2px 6px rgba(0,0,0,.06)}
.msg.user{margin-left:auto;background:#e8f7ff}
.msg.bot{margin-right:auto;background:#ffffff}
.msg.system{margin:10px auto;max-width:90%;background:#fff4e5;border-left:4px solid #ff9800}
.meta{font-size:.8rem;color:var(--muted);margin-top:4px}
.input-row{display:flex;gap:10px;border-top:1px solid #e5eef2;padding:10px;background:#fff}
textarea{flex:1;resize:none;min-height:52px;border:1px solid #dce8ee;border-radius:10px;padding:12px;font:inherit}
button.primary{border:0;border-radius:10px;padding:12px 16px;background:#0e2333;color:#fff;font-weight:700;cursor:pointer}
button.primary:disabled{opacity:.5;cursor:not-allowed}
/* Coming Soon badge */
.badge-coming{display:inline-block;background:#e0f7ec;color:#0e2333;padding:2px 6px;border-radius:6px;font-size:.75rem;font-weight:600;margin-left:6px}
/* Drawer nav */
.drawer-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:999}
.drawer{display:none;position:fixed;top:0;right:0;width:260px;height:100%;background:#fff;box-shadow:-2px 0 10px rgba(0,0,0,.2);z-index:1000;padding:20px;box-sizing:border-box;flex-direction:column}
.drawer.open,.drawer-overlay.open{display:flex}
.drawer a{margin:10px 0;font-size:1rem;text-decoration:none;color:var(--ink)}
.drawer .close-btn{align-self:flex-end;font-size:1.5rem;cursor:pointer;margin-bottom:20px}
.drawer .donate-btn{margin-top:auto;padding:10px;background:var(--brand1);color:#fff;text-align:center;border-radius:6px;font-weight:700;text-decoration:none}
.nav-toggle{display:none;font-size:1.5rem;background:none;border:none;cursor:pointer}
@media(max-width:768px){.nav-toggle{display:block}.header nav{display:none}}
/* Mobile tweaks */
@media(max-width:600px){.hero{padding:18px;font-size:.95rem}.hero h1{font-size:1.6rem}.card h2{font-size:1.1rem}}