:root{--bg:#0d0f14;--panel:#151922;--panel2:#1c2130;--line:#2a3142;--text:#e9ecf3;--muted:#9aa3b5;--accent:#f5b544;--danger:#ff6b6b;--ok:#4ad295;--warn:#f5b544;--r:12px}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Be Vietnam Pro',system-ui,sans-serif;line-height:1.5;font-size:15px}
a{color:var(--accent)}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{font-weight:800;font-size:18px}.brand span{color:var(--accent)}
.topbar nav{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 14px;border-radius:9px;border:1px solid var(--line);background:var(--panel2);color:var(--text);font:600 14px inherit;font-family:inherit;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{filter:brightness(1.12)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#1a1405}
.btn.danger{color:var(--danger);border-color:rgba(255,107,107,.4)}
.btn.sm{padding:5px 9px;font-size:12.5px;border-radius:7px}
input,select,textarea{background:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:9px;padding:9px 11px;font:inherit;width:100%}
input:focus,select:focus{outline:2px solid rgba(245,181,68,.45);border-color:var(--accent)}
label{display:block;font-size:13px;color:var(--muted);margin:0 0 5px;font-weight:600}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.auth{min-height:100vh;display:grid;place-items:center;padding:16px;background:radial-gradient(700px 300px at 20% 0%,rgba(245,181,68,.15),transparent 70%),var(--bg)}
.auth .card{width:100%;max-width:380px;padding:26px}
.auth h1{margin:0 0 4px;font-size:22px}
.auth p.sub{margin:0 0 18px;color:var(--muted);font-size:14px}
.field{margin-bottom:14px}
.alert{padding:10px 13px;border-radius:9px;font-size:14px;margin-bottom:14px;border:1px solid}
.alert.err{background:rgba(255,107,107,.08);border-color:rgba(255,107,107,.35);color:#ffc2c2}
.alert.ok{background:rgba(74,210,149,.08);border-color:rgba(74,210,149,.35);color:#bdf3da}
.alert.info{background:rgba(245,181,68,.08);border-color:rgba(245,181,68,.35);color:#f3dfb6}
h2{font-size:19px;margin:26px 0 12px}
.grid{display:grid;gap:12px}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;align-items:end}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:18px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:14px}
.stat b{display:block;font-size:24px}.stat span{color:var(--muted);font-size:13px}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r)}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:820px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{background:var(--panel2);color:var(--muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.04em}
tr:last-child td{border-bottom:0}
.pill{display:inline-block;padding:3px 9px;border-radius:99px;font-size:12px;font-weight:600}
.pill.active{background:rgba(74,210,149,.14);color:var(--ok)}
.pill.soon{background:rgba(245,181,68,.15);color:var(--warn)}
.pill.expired{background:rgba(255,107,107,.13);color:var(--danger)}
.pill.locked{background:#2a3142;color:var(--muted)}
.actions{display:flex;gap:6px;flex-wrap:wrap}
.actions form{display:inline-flex;gap:4px}
.actions select{width:auto;padding:5px 7px;font-size:12.5px}
.muted{color:var(--muted)}
.cred{font-family:ui-monospace,Consolas,monospace;background:var(--panel2);padding:10px 12px;border-radius:9px;margin-top:8px;white-space:pre-wrap}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
.toolbar input{max-width:260px}
details summary{cursor:pointer;color:var(--muted);font-size:14px}
.zalo-fab{position:fixed;right:16px;bottom:16px;z-index:50;display:flex;align-items:center;gap:8px;background:#0068ff;color:#fff;text-decoration:none;font-weight:700;font-size:14px;padding:11px 16px 11px 13px;border-radius:99px;box-shadow:0 8px 24px rgba(0,104,255,.35)}
.zalo-fab:hover{filter:brightness(1.1)}
.auth .card.wide{max-width:560px}
.auth .links{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:13.5px;margin-top:14px}
.plans-pick{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.plans-pick label{position:relative;margin:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:64px;text-align:center;border:1px solid var(--line);border-radius:10px;padding:10px 6px;cursor:pointer;background:var(--panel2);transition:border-color .15s,background .15s}
.plans-pick label:hover{border-color:#3a4258}
.plans-pick .pn{color:var(--text);font-weight:600;font-size:12.5px;line-height:1.25;white-space:nowrap}
.plans-pick .pp{color:var(--accent);font-weight:800;font-size:15px;white-space:nowrap}
.plans-pick input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.plans-pick label:has(input:checked){border-color:var(--accent);background:rgba(245,181,68,.10);box-shadow:0 0 0 1px var(--accent) inset}
.plans-pick label:has(input:focus-visible){outline:2px solid var(--accent);outline-offset:2px}
@media(max-width:560px){.plans-pick{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:360px){.plans-pick{grid-template-columns:repeat(2,minmax(0,1fr))}}
.auth .card.wide{max-width:600px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
@media(max-width:520px){.row2{grid-template-columns:1fr}}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.back-home{display:inline-block;margin-bottom:14px;font-size:13.5px;color:var(--muted);text-decoration:none}
.pill.pending{background:rgba(120,160,255,.15);color:#9db8ff}