:root {
  --bg: #1a1013; --card: #261a1e; --line: #4a2d35; --text: #f2e8e4; --muted: #b9a39f;
  --accent: #c8323c; --accent2: #e8a33c; --ok: #4caf7a; --err: #ff6b6b;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 Arial, "Segoe UI", sans-serif; }
body { background: radial-gradient(1200px 600px at 50% -200px, #3a1820 0, var(--bg) 70%) no-repeat; min-height: 100vh; }
.wrap { max-width: 520px; margin: 0 auto; padding: 0 16px 40px; }
.top { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.brand { color: var(--accent2); text-decoration: none; font-weight: 700; font-size: 20px; }
.brand span { color: var(--text); font-weight: 400; font-size: 14px; margin-left: 6px; }
nav { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.who { color: var(--muted); }
form.inline { display: inline; margin: 0; }
button.link { background: none; border: 0; color: var(--accent2); cursor: pointer; font: inherit; padding: 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 22px; margin-bottom: 16px; }
h1 { font-size: 22px; margin: 0 0 14px; } h2 { font-size: 17px; margin: 0 0 10px; color: var(--accent2); }
label { display: block; margin: 12px 0 4px; font-size: 14px; color: var(--muted); }
input[type=text], input[type=password], input[type=email] {
  width: 100%; padding: 11px 12px; border-radius: 8px; border: 1px solid var(--line);
  background: #160d10; color: var(--text); font-size: 16px;
}
input:focus { outline: 2px solid var(--accent); border-color: transparent; }
.hint { font-size: 13px; color: var(--muted); margin-top: 4px; }
.btn { display: block; width: 100%; margin-top: 18px; padding: 12px; border: 0; border-radius: 8px; cursor: pointer;
  background: linear-gradient(#d83c47, #a62630); color: #fff; font-size: 17px; font-weight: 700; text-align: center; text-decoration: none; }
.btn.play { background: linear-gradient(#f0b04a, #c9822a); color: #2a1408; font-size: 19px; }
.btn.secondary { background: #3a2a2f; color: var(--text); }
.msg { padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; font-size: 14px; }
.msg.err { background: #3a1517; border: 1px solid var(--err); color: #ffc9c9; }
.msg.ok { background: #14301f; border: 1px solid var(--ok); color: #c6f0d8; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 400; }
.muted { color: var(--muted); font-size: 14px; }
.alt { text-align: center; margin-top: 14px; font-size: 14px; color: var(--muted); }
.alt a { color: var(--accent2); }
form.server { border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin-bottom: 12px; background: #1f1317; }
form.server.off { opacity: .65; }
.srv-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.badge { font-size: 12px; padding: 2px 8px; border-radius: 999px; }
.b-on { background: #14301f; color: #c6f0d8; border: 1px solid var(--ok); }
.b-off { background: #3a1517; color: #ffc9c9; border: 1px solid var(--err); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
footer { text-align: center; color: var(--muted); font-size: 12px; margin-top: 24px; }

/* Tam Quoc Wifu branding */
.top { flex-wrap:wrap; gap:8px; }
.brand img { display:block; width:151px; height:60px; object-fit:contain; }
.brand-banner { display:block; width:100%; height:auto; border-radius:12px; border:1px solid var(--line); margin:0 0 18px; }