/* ===================================================
 * L.F.QUEL WebNovels v2.0 — Admin Panel CSS
 * =================================================== */
*{margin:0;padding:0;box-sizing:border-box}
:root{
    --bg:#0c0c14;--bg-elev:#16162a;--bg-elev-2:#1a1a2e;--bg-elev-3:#1e1e3a;
    --border:#2a2a4a;--border-soft:#1e1e3a;
    --text:#e0e0e0;--text-muted:#888;--text-dim:#555;
    --accent:#a78bfa;--accent-strong:#7c3aed;--accent-soft:rgba(167,139,250,.1);
    --danger:#f87171;--success:#4ade80;--warn:#facc15;
    --info:#60a5fa;
}
html,body{height:100%}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;font-size:14px;line-height:1.5}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{background:var(--bg-elev);border:1px solid var(--border);border-radius:16px;padding:48px 40px;max-width:420px;width:100%;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.login-card h1{text-align:center;color:var(--accent);font-size:20px;margin-bottom:4px}
.login-card .subtitle{text-align:center;color:var(--text-muted);font-size:13px;margin-bottom:32px}
.logo-icon{text-align:center;margin-bottom:16px}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;background:linear-gradient(135deg,var(--accent-strong),var(--accent));border-radius:14px;font-weight:800;font-size:18px;color:#fff;letter-spacing:-.5px}
.form-group{margin-bottom:20px}
.form-group label{display:block;color:var(--text-muted);font-size:13px;margin-bottom:6px;font-weight:500;text-transform:uppercase;letter-spacing:.5px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;background:var(--bg-elev-2);border:1px solid #333;border-radius:10px;color:#fff;font-size:15px;outline:none;transition:all .2s;font-family:inherit}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(167,139,250,.15)}
.form-group textarea{min-height:90px;resize:vertical}
.btn{padding:10px 20px;border:none;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;transition:all .2s;text-decoration:none;display:inline-flex;align-items:center;gap:6px;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,var(--accent-strong),var(--accent));color:#fff}
.btn-primary:hover{opacity:.92;transform:translateY(-1px)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-danger{background:rgba(220,38,38,.15);border:1px solid rgba(220,38,38,.3);color:var(--danger)}
.btn-danger:hover{background:rgba(220,38,38,.3)}
.btn-secondary{background:var(--bg-elev-3);color:#ccc;border:1px solid #333}
.btn-secondary:hover{background:var(--border)}
.btn-sm{padding:6px 12px;font-size:12px}
.btn-login{width:100%;padding:14px;background:linear-gradient(135deg,var(--accent-strong),var(--accent));border:none;border-radius:10px;color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;margin-top:8px}
.btn-login:hover{transform:translateY(-1px);box-shadow:0 4px 20px rgba(124,58,237,.4)}
.btn-login:disabled{opacity:.5;cursor:not-allowed;transform:none}
.error-msg{background:#3b1111;border:1px solid #dc2626;color:var(--danger);padding:12px;border-radius:8px;font-size:13px;margin-bottom:20px;text-align:center}
.back-link{display:block;text-align:center;margin-top:24px;color:var(--text-muted);font-size:13px;text-decoration:none}
.back-link:hover{color:var(--accent)}

/* ---------- Top Bar ---------- */
.topbar{background:#12122a;border-bottom:1px solid var(--border);padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}
.topbar h1{font-size:16px;color:var(--accent);font-weight:600;display:flex;align-items:center;gap:10px}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;background:linear-gradient(135deg,var(--accent-strong),var(--accent));border-radius:8px;font-weight:800;font-size:11px;color:#fff;letter-spacing:-.3px;flex-shrink:0}
.topbar .user-info{display:flex;align-items:center;gap:16px}
.topbar .user-name{color:var(--text-muted);font-size:14px}
.btn-logout{padding:8px 16px;background:rgba(220,38,38,.15);border:1px solid rgba(220,38,38,.3);border-radius:8px;color:var(--danger);font-size:13px;cursor:pointer;text-decoration:none;transition:all .2s}
.btn-logout:hover{background:rgba(220,38,38,.3)}

/* ---------- Layout ---------- */
.admin-layout{display:flex;min-height:calc(100vh - 60px)}
.sidebar{width:240px;background:#12122a;border-right:1px solid var(--border-soft);padding:16px 0;flex-shrink:0}
.sidebar a{display:flex;align-items:center;gap:12px;padding:12px 24px;color:var(--text-muted);text-decoration:none;font-size:14px;transition:all .15s;border-left:3px solid transparent;cursor:pointer}
.sidebar a:hover,.sidebar a.active{color:var(--accent);background:var(--accent-soft);border-left-color:var(--accent)}
.sidebar a .icon{font-size:18px;width:24px;text-align:center}
.sidebar .section-label{padding:20px 24px 8px;font-size:11px;color:var(--text-dim);text-transform:uppercase;letter-spacing:1px;font-weight:600}
.content{flex:1;padding:32px;overflow-y:auto;max-width:1280px}

/* ---------- Stats ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:32px}
.stat-card{background:var(--bg-elev);border:1px solid var(--border);border-radius:12px;padding:20px;transition:transform .15s}
.stat-card:hover{transform:translateY(-2px);border-color:var(--accent)}
.stat-card .stat-value{font-size:28px;font-weight:700;color:var(--accent)}
.stat-card .stat-label{font-size:12px;color:var(--text-dim);margin-top:4px;text-transform:uppercase;letter-spacing:.5px}

/* ---------- Sections ---------- */
.section{display:none}
.section.active{display:block}
.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;flex-wrap:wrap;gap:12px}
.section-title{font-size:20px;font-weight:600;color:var(--text)}

/* ---------- Table ---------- */
.table-container{background:var(--bg-elev);border:1px solid var(--border);border-radius:12px;overflow:hidden;overflow-x:auto}
table{width:100%;border-collapse:collapse}
th{background:var(--bg-elev-2);padding:12px 16px;text-align:left;font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-weight:600}
td{padding:12px 16px;border-top:1px solid var(--border-soft);font-size:14px;vertical-align:middle}
tr:hover td{background:var(--accent-soft)}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:600}
.badge-active{background:rgba(34,197,94,.15);color:var(--success)}
.badge-used{background:rgba(234,179,8,.15);color:var(--warn)}
.badge-expired{background:rgba(220,38,38,.15);color:var(--danger)}
.badge-hidden{background:rgba(96,165,250,.15);color:var(--info)}

/* ---------- Novel cover thumbnail ---------- */
.cover-thumb{width:48px;height:64px;border-radius:6px;object-fit:cover;background:var(--bg-elev-2);border:1px solid var(--border)}
.cover-thumb.placeholder{display:flex;align-items:center;justify-content:center;color:var(--text-dim);font-size:18px}

/* ---------- Modal ---------- */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:1000;align-items:center;justify-content:center;padding:20px}
.modal-overlay.active{display:flex}
.modal{background:var(--bg-elev);border:1px solid var(--border);border-radius:16px;padding:32px;max-width:560px;width:100%;max-height:90vh;overflow-y:auto}
.modal.wide{max-width:780px}
.modal h2{font-size:18px;color:var(--accent);margin-bottom:20px}
.form-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px;flex-wrap:wrap}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}

/* ---------- Toast ---------- */
.toast-container{position:fixed;top:72px;right:24px;z-index:2000;display:flex;flex-direction:column;gap:8px}
.toast{background:var(--bg-elev-2);border:1px solid var(--border);border-radius:10px;padding:14px 20px;font-size:13px;display:flex;align-items:center;gap:10px;animation:slideIn .3s ease;min-width:280px;box-shadow:0 8px 32px rgba(0,0,0,.4);max-width:380px}
.toast.success{border-left:3px solid var(--success)}
.toast.error{border-left:3px solid var(--danger)}
.toast.info{border-left:3px solid var(--info)}
@keyframes slideIn{from{transform:translateX(120%);opacity:0}to{transform:translateX(0);opacity:1}}

/* ---------- Empty state ---------- */
.empty-state{text-align:center;padding:60px 20px;color:var(--text-dim)}
.empty-state .icon{font-size:48px;margin-bottom:16px}

/* ---------- Upload area ---------- */
.upload-area{border:2px dashed var(--border);border-radius:12px;padding:40px;text-align:center;cursor:pointer;transition:all .2s}
.upload-area:hover,.upload-area.dragover{border-color:var(--accent);background:var(--accent-soft)}
.upload-area input[type="file"]{display:none}
.upload-area .upload-icon{font-size:36px;margin-bottom:12px;color:var(--text-dim)}
.upload-area p{color:var(--text-muted);font-size:14px}
.upload-area .filename{color:var(--accent);margin-top:8px;font-weight:600}

/* ---------- Upload progress bar ---------- */
.upload-progress{margin-top:16px;display:none}
.upload-progress.active{display:block}
.upload-progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:13px;color:var(--text-muted)}
.upload-progress-header .pct{color:var(--accent);font-weight:600;font-variant-numeric:tabular-nums}
.upload-progress-header .stage{color:var(--text-dim);font-size:12px}
.upload-progress-track{background:var(--bg-elev-2);border-radius:999px;height:10px;overflow:hidden;position:relative;border:1px solid var(--border)}
.upload-progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent-strong),var(--accent));border-radius:999px;transition:width .25s ease;position:relative;overflow:hidden}
.upload-progress-fill::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);transform:translateX(-100%);animation:lfq-shimmer 1.4s infinite}
.upload-progress-fill.done::after{animation:none}
.upload-progress-fill.error{background:linear-gradient(90deg,#dc2626,#ef4444)}
.upload-progress-fill.processing{background:linear-gradient(90deg,#3b82f6,#60a5fa)}
.upload-progress-detail{margin-top:6px;font-size:11px;color:var(--text-dim);display:flex;justify-content:space-between;font-variant-numeric:tabular-nums}
@keyframes lfq-shimmer{100%{transform:translateX(100%)}}
@media (prefers-reduced-motion:reduce){.upload-progress-fill::after{animation:none}}

/* ---------- Ticket code grid ---------- */
.tickets-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px;margin-top:16px}
.ticket-code{background:var(--bg-elev-2);border:1px dashed var(--border);border-radius:8px;padding:12px;text-align:center;font-family:'Courier New',monospace;font-size:15px;color:var(--accent);letter-spacing:2px;word-break:break-all;position:relative}
.ticket-code .copy-btn{position:absolute;top:4px;right:4px;background:none;border:none;color:var(--text-dim);cursor:pointer;font-size:14px;padding:4px}

/* ---------- Chart ---------- */
.chart-container{background:var(--bg-elev);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:24px}
.chart-container h3{font-size:15px;color:var(--text);margin-bottom:16px}
.chart-svg{width:100%;height:200px;display:block}

/* ---------- QR code ---------- */
.qr-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px;margin-top:16px}
.qr-card{background:var(--bg-elev-2);border:1px solid var(--border);border-radius:8px;padding:16px;text-align:center}
.qr-card canvas{display:block;margin:0 auto 8px;background:#fff;padding:8px;border-radius:4px}
.qr-card .code{font-family:'Courier New',monospace;font-size:13px;color:var(--accent);word-break:break-all}

/* ---------- 2FA setup ---------- */
.tfa-card{background:var(--bg-elev);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:16px}
.tfa-card h3{font-size:15px;color:var(--text);margin-bottom:8px}
.tfa-card p{font-size:13px;color:var(--text-muted);margin-bottom:16px;line-height:1.6}
.tfa-secret{background:var(--bg-elev-2);border:1px dashed var(--border);border-radius:8px;padding:12px;font-family:'Courier New',monospace;font-size:13px;color:var(--accent);word-break:break-all;text-align:center;margin:16px 0}
.qr-placeholder{width:200px;height:200px;background:#fff;border-radius:8px;margin:0 auto;display:flex;align-items:center;justify-content:center}
.qr-placeholder img{width:100%;height:100%;border-radius:8px}

/* ---------- Audit log ---------- */
.audit-entry{background:var(--bg-elev);border:1px solid var(--border);border-radius:8px;padding:12px 16px;margin-bottom:8px;font-size:13px}
.audit-entry .audit-meta{color:var(--text-dim);font-size:11px;margin-bottom:4px}
.audit-entry .audit-action{color:var(--accent);font-weight:600;font-family:'Courier New',monospace}
.audit-entry .audit-details{color:var(--text-muted);font-size:12px;margin-top:4px;font-family:'Courier New',monospace}

/* ---------- Responsive ---------- */
@media(max-width:768px){
    .sidebar{display:none}
    .content{padding:16px}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .mobile-nav{display:flex !important;overflow-x:auto;background:#12122a;border-bottom:1px solid var(--border);padding:0 8px;gap:0}
    .mobile-nav a{padding:12px 16px;color:var(--text-muted);text-decoration:none;font-size:13px;white-space:nowrap;border-bottom:2px solid transparent;cursor:pointer}
    .mobile-nav a.active{color:var(--accent);border-bottom-color:var(--accent)}
    .form-row{grid-template-columns:1fr}
    .modal{padding:20px}
    .topbar h1{font-size:14px}
}
.mobile-nav{display:none}

/* ---------- Cover upload preview ---------- */
.cover-preview{width:120px;height:160px;border-radius:8px;object-fit:cover;background:var(--bg-elev-2);border:1px solid var(--border);margin:8px 0}
.cover-preview.placeholder{display:flex;align-items:center;justify-content:center;color:var(--text-dim);font-size:24px}

/* ---------- Setting rows ---------- */
.setting-row{background:var(--bg-elev);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:16px}
.setting-row h3{font-size:15px;color:var(--text);margin-bottom:6px}
.setting-row p.desc{font-size:13px;color:var(--text-muted);margin-bottom:16px}

/* ---------- Chapters editor ---------- */
.chapter-editor textarea{min-height:300px;font-family:'Courier New',monospace;font-size:14px;line-height:1.6}
.chapter-list-item{display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border-soft)}
.chapter-list-item:hover{background:var(--accent-soft)}
.chapter-list-item .ch-num{color:var(--accent);font-weight:600;font-family:'Courier New',monospace;width:48px}
.chapter-list-item .ch-title{flex:1;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chapter-list-item .ch-meta{color:var(--text-dim);font-size:11px}
.chapter-list-item button{padding:4px 8px;background:var(--bg-elev-2);border:1px solid var(--border);border-radius:6px;color:var(--text-muted);cursor:pointer;font-size:13px}
.chapter-list-item button:hover{background:var(--accent-soft);color:var(--accent)}