/* Trang đăng nhập, cài đặt, quản trị — cùng tông với app */
:root { --bg: #0f1013; --panel: #17181d; --panel-2: #1f2027; --line: #2c2e37; --text: #ecebf0; --muted: #8e8f9a; --accent: #ff3d57; --accent-2: #ff8a3d; --ok: #3ddc97; }
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 "Be Vietnam Pro", system-ui, sans-serif; }
a { color: var(--accent-2); }
input, select, button { font: inherit; color: inherit; }
input, select { width: 100%; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 9px 11px; margin-top: 4px; }
input:focus, select:focus { outline: none; border-color: var(--accent); }
label { display: block; margin: 0 0 12px; color: var(--muted); font-size: 13px; }
label input, label select { color: var(--text); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid var(--line); background: var(--panel-2); color: var(--text);
  padding: 9px 14px; border-radius: 9px; cursor: pointer; text-decoration: none; font-weight: 600; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; width: 100%; padding: 11px; }
.btn.ghost { background: none; }
.btn.tiny { padding: 4px 8px; font-size: 12px; font-weight: 500; }
.btn.google { width: 100%; background: #fff; color: #222; border-color: #fff; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 16px; }
.brand small { color: var(--muted); font-weight: 400; }
.logo { width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; }
.alert { padding: 10px 12px; border-radius: 9px; margin: 0 0 14px; word-break: break-word; }
.alert.err { background: #ff3d5722; color: #ffc2cb; }
.alert.ok { background: #3ddc9722; color: #b8f5da; }
.alert.warn { background: #ff8a3d22; color: #ffd2b0; }
.alert.dev { background: #4fb6ff22; color: #cfe9ff; }
.hint { color: var(--muted); font-size: 12px; }
code { background: var(--panel-2); padding: 1px 6px; border-radius: 5px; word-break: break-all; }

/* ---------- đăng nhập ---------- */
body.auth { min-height: 100vh; display: grid; place-items: center; padding: 20px; background: radial-gradient(circle at 50% 20%, #241722, var(--bg) 60%); }
.auth-card { width: 100%; max-width: 400px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 26px; }
.auth-card h1 { font-size: 20px; margin: 16px 0 14px; }
.auth-card .links { text-align: center; font-size: 13px; color: var(--muted); margin: 14px 0 0; }
.auth-card form .btn + .btn { margin-top: 8px; }
.or { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 12px; margin: 16px 0; }
.or::before, .or::after { content: ''; flex: 1; height: 1px; background: var(--line); }
label.radio { display: flex; gap: 10px; align-items: flex-start; padding: 10px; border: 1px solid var(--line); border-radius: 10px; color: var(--text); cursor: pointer; }
label.radio input { width: auto; margin-top: 4px; }
#dbf .mysql { display: none; }
#dbf:has(input[value="mysql"]:checked) .mysql { display: block; }

/* ---------- quản trị ---------- */
.atop { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; gap: 18px; padding: 10px 18px; background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.atop nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.atop nav a { padding: 7px 12px; border-radius: 8px; color: var(--muted); text-decoration: none; }
.atop nav a.on { background: var(--accent); color: #fff; }
.awrap { padding: 18px; max-width: 1300px; margin: auto; }
.awrap h2 { font-size: 16px; margin: 24px 0 10px; }
.awrap h2 small { color: var(--muted); font-weight: 400; }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.stats > div { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.stats b { display: block; font-size: 22px; }
.stats span { color: var(--muted); font-size: 12px; }
.tbl { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: 12px; overflow: hidden; }
.tbl th, .tbl td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.tbl th { color: var(--muted); font-weight: 600; font-size: 12px; background: var(--panel-2); }
.tbl tr.dis td { opacity: .5; }
.tbl .acts form { display: flex; gap: 4px; margin-bottom: 4px; flex-wrap: wrap; }
.tbl .acts input { width: auto; margin: 0; padding: 4px 6px; font-size: 12px; }
.tbl td.neg { color: #ff9aa8; } .tbl td.pos { color: var(--ok); }
.tag { font-style: normal; font-size: 11px; background: var(--panel-2); border: 1px solid var(--line); border-radius: 5px; padding: 0 5px; margin-left: 4px; color: var(--accent-2); }
form.inline { display: inline-flex; gap: 4px; flex-wrap: wrap; align-items: center; }
form.inline input { width: auto; margin: 0; }
.search { display: flex; gap: 8px; margin-bottom: 12px; max-width: 420px; }
.search input { margin: 0; }
.settings { display: grid; grid-template-columns: repeat(auto-fill, minmax(380px, 1fr)); gap: 14px; align-items: start; }
.settings fieldset { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px; margin: 0; }
.settings legend { font-weight: 700; padding: 0 6px; }
.settings > .btn.primary { grid-column: 1 / -1; max-width: 300px; }
.settings .box { background: var(--panel-2); border-radius: 9px; padding: 10px; font-size: 13px; }
.settings .box p { margin: 0 0 6px; }
label.check { display: flex; gap: 8px; align-items: center; color: var(--text); }
label.check input { width: auto; margin: 0; }
@media (max-width: 760px) { .tbl { display: block; overflow-x: auto; } .settings { grid-template-columns: 1fr; } }