/* GM Tool — giao diện tối, gọn. Dùng chung cho login + app. */
:root{
  --bg:#0b0f14; --panel:#111823; --panel2:#0e141d; --border:#1e2a3a;
  --text:#dce6f2; --muted:#8598ad; --accent:#3b82f6; --accent2:#2563eb;
  --ok:#22c55e; --err:#ef4444; --warn:#f59e0b;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
a{color:var(--accent)}
h1,h2,h3{font-weight:650;margin:0 0 .5rem}
.muted{color:var(--muted)}
.row{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center}
input,select,button{font:inherit}
input,select{background:var(--panel2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:.55rem .7rem;width:100%}
input:focus,select:focus{outline:none;border-color:var(--accent)}
label{display:block;font-size:.8rem;color:var(--muted);margin:.6rem 0 .25rem;text-transform:uppercase;letter-spacing:.03em}
button{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:.55rem 1rem;cursor:pointer;font-weight:600}
button:hover{background:var(--accent2)}
button.ghost{background:transparent;border:1px solid var(--border);color:var(--text)}
button.danger{background:var(--err)}
button:disabled{opacity:.5;cursor:not-allowed}
.card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:1.25rem 1.5rem;margin-bottom:1rem}
.pill{display:inline-block;padding:.15rem .6rem;border-radius:999px;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.pill.owner{background:#3b2f0b;color:#fbbf24}
.pill.admin{background:#0b2a3b;color:#38bdf8}
.notice{border-left:3px solid var(--accent);background:#0e1826;padding:.6rem .9rem;border-radius:8px;margin:.5rem 0}
.notice.err{border-color:var(--err);background:#241014;color:#fecaca}
.notice.ok{border-color:var(--ok);background:#0e2416;color:#bbf7d0}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:.5rem .6rem;border-bottom:1px solid var(--border)}
th{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.03em}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:.9rem 1.25rem;border-bottom:1px solid var(--border);background:var(--panel2)}
.brand{font-weight:750;letter-spacing:.01em}
.wrap{max-width:920px;margin:1.25rem auto;padding:0 1rem}
.tabs{display:flex;gap:.35rem;margin-bottom:1rem;flex-wrap:wrap}
.tabs button{background:transparent;border:1px solid var(--border);color:var(--muted)}
.tabs button.active{background:var(--panel);color:var(--text);border-color:var(--accent)}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem}
.login-card{width:360px;max-width:100%}
.hide{display:none!important}
code{background:var(--panel2);padding:.1rem .35rem;border-radius:5px}