:root {
  --bg: #0f1216;
  --panel: #171b21;
  --line: #262c34;
  --fg: #e6e9ee;
  --dim: #8b95a3;
  --acc: #c8a45c;
  --ok: #4caf7d;
  --err: #e0574f;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 14px/1.5 -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--acc); text-decoration: none; }
a:hover { text-decoration: underline; }

/* login */
body.login { display: grid; place-items: center; min-height: 100vh; }
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 28px 26px; width: 340px;
}
.card h1 { margin: 0 0 18px; font-size: 19px; font-weight: 600; }
.card h1 span { color: var(--acc); font-weight: 400; }
.card label { display: block; margin-bottom: 12px; color: var(--dim); font-size: 12px; }
.card input {
  width: 100%; margin-top: 5px; padding: 9px 11px; font-size: 14px;
  background: #0c0f13; border: 1px solid var(--line); border-radius: 6px; color: var(--fg);
}
.card input:focus { outline: none; border-color: var(--acc); }
button {
  width: 100%; padding: 10px; margin-top: 6px; cursor: pointer;
  background: var(--acc); border: 0; border-radius: 6px;
  color: #1a1408; font-weight: 600; font-size: 14px;
}
button:hover { filter: brightness(1.08); }
.err { color: var(--err); font-size: 13px; margin: 0 0 12px; }

/* layout */
header {
  display: flex; align-items: center; gap: 18px;
  padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--line);
}
header b { color: var(--acc); }
header nav { display: flex; gap: 14px; margin-left: auto; }
main { padding: 20px; max-width: 1180px; margin: 0 auto; }

/* stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 22px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; }
.stat .n { font-size: 24px; font-weight: 600; color: var(--acc); }
.stat .l { font-size: 12px; color: var(--dim); }

/* table */
table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
th, td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--line); font-size: 13px; }
th { background: #1d222a; color: var(--dim); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
tr:last-child td { border-bottom: 0; }
tr:hover td { background: #1b2028; }
.mono { font-family: ui-monospace, Menlo, Consolas, monospace; }

/* forms */
.form { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 18px; max-width: 560px; }
.form label { display: block; margin-bottom: 12px; color: var(--dim); font-size: 12px; }
.form input, .form select {
  width: 100%; margin-top: 5px; padding: 8px 10px; font-size: 14px;
  background: #0c0f13; border: 1px solid var(--line); border-radius: 6px; color: var(--fg);
}
.form input:focus, .form select:focus { outline: none; border-color: var(--acc); }
.form button { width: auto; padding: 9px 22px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }

.ok, .bad { padding: 9px 12px; border-radius: 6px; margin-bottom: 14px; font-size: 13px; }
.ok { background: #16321f; color: var(--ok); border: 1px solid #235c37; }
.bad { background: #331a18; color: var(--err); border: 1px solid #5c2b26; }
.tag { padding: 2px 7px; border-radius: 4px; font-size: 11px; }
.tag.on { background: #16321f; color: var(--ok); }
.tag.off { background: #331a18; color: var(--err); }
.tag.me { background: #2b2517; color: var(--acc); }
.tag.r-viewer { background: #1c2530; color: #7fa8d8; }
.tag.r-admin { background: #2b2517; color: var(--acc); }
.tag.r-superadmin { background: #321f17; color: #e89a5c; }
.actions a { margin-right: 10px; font-size: 12px; }

/* header: ten + vai tro */
header .who { color: var(--dim); font-size: 12px; }
header .who em {
  font-style: normal; margin-left: 6px; padding: 2px 7px; border-radius: 4px;
  background: #22282f; color: var(--acc); font-size: 11px;
}
header nav a.on { color: var(--fg); }
header nav a.out { color: #a86a63; }
form select { font-family: inherit; }