:root{
  --blue:#174ea6;
  --blue-dark:#0c2f68;
  --yellow:#f3e84d;
  --bg:#f4f6fb;
  --text:#1d2433;
  --muted:#657085;
  --card:#ffffff;
  --border:#dfe4ee;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:Arial, Helvetica, sans-serif;}
a{color:inherit;text-decoration:none}.sidebar{position:fixed;left:0;top:0;width:280px;height:100vh;background:linear-gradient(180deg,var(--blue-dark),var(--blue));color:white;padding:18px;overflow:auto}.brand{display:flex;gap:12px;align-items:center;margin-bottom:22px}.brand img{width:66px;height:66px;border-radius:14px;background:white;padding:4px}.brand h1{font-size:24px;margin:0}.brand p{margin:2px 0;color:#dce7ff;font-size:13px}nav{display:flex;flex-direction:column;gap:8px}nav a, .logout-form button{display:block;width:100%;background:rgba(255,255,255,.1);color:white;border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:12px 14px;text-align:left;font-size:15px;cursor:pointer}nav a:hover,.logout-form button:hover{background:rgba(255,255,255,.2)}.logout-form{margin:0}.main{margin-left:280px;min-height:100vh;padding:24px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;background:white;border:1px solid var(--border);border-radius:18px;padding:16px 20px;box-shadow:0 8px 28px rgba(23,78,166,.08)}.topbar span{color:var(--muted);font-size:13px}.motto{font-weight:bold;color:var(--blue-dark)}.hero{display:flex;justify-content:space-between;align-items:center;background:linear-gradient(135deg,#fff,var(--yellow));border:1px solid var(--border);border-radius:24px;padding:26px 30px;margin-bottom:22px}.hero h2{font-size:38px;margin:0;color:var(--blue-dark)}.hero p{font-size:17px;margin:6px 0 0}.hero-badge{font-weight:bold;background:var(--blue-dark);color:white;padding:14px 18px;border-radius:16px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px}.card{background:white;border:1px solid var(--border);border-radius:18px;padding:18px;box-shadow:0 8px 24px rgba(12,47,104,.07)}.card span{color:var(--muted);font-size:14px}.card strong{display:block;font-size:34px;margin-top:8px;color:var(--blue-dark)}.panel{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:22px;margin:18px 0;box-shadow:0 8px 24px rgba(12,47,104,.06)}.panel h2,.panel h3{margin-top:0;color:var(--blue-dark)}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:18px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;background:white}th,td{padding:12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}th{background:#eef4ff;color:var(--blue-dark);font-size:14px}tr:hover td{background:#fafcff}.btn{display:inline-block;border:1px solid var(--border);background:white;color:var(--blue-dark);border-radius:12px;padding:10px 14px;font-weight:bold;cursor:pointer}.btn.primary{background:var(--blue);color:white;border-color:var(--blue)}.btn.small{padding:7px 10px;font-size:13px}.badge{display:inline-block;background:#eef4ff;color:var(--blue-dark);border-radius:999px;padding:6px 10px;font-weight:bold;font-size:12px}.hint{color:var(--muted);font-size:13px}.notice{border-left:5px solid var(--yellow);background:#fffde7;border-radius:12px;padding:14px;margin:12px 0}.notice.large{font-size:16px}.messages{margin-bottom:12px}.msg{padding:12px 14px;border-radius:12px;background:#e9f6ed;border:1px solid #bde5c8;color:#1d6b35}.search{display:flex;gap:8px}.search input,.form-grid input,.form-grid select,.form-grid textarea,.login-card input{width:100%;border:1px solid var(--border);border-radius:12px;padding:11px 12px;font-size:15px;background:white}.form-panel{max-width:900px}.form-grid p{margin:0 0 12px}.form-grid label{font-weight:bold;color:var(--blue-dark);display:block;margin-bottom:4px}.actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at top,#eaf1ff,#f7f7f7)}.login-card{width:min(440px,92vw);background:white;border-radius:28px;padding:30px;border:1px solid var(--border);box-shadow:0 20px 60px rgba(12,47,104,.18);text-align:center}.login-logo{width:120px;height:120px;object-fit:contain}.login-card h1{color:var(--blue-dark);font-size:36px;margin:8px 0 0}.login-card h2{font-size:18px;margin:3px 0;color:var(--muted)}.motto-login{font-weight:bold;color:var(--blue-dark);font-size:16px}.sub-login{font-size:13px;color:var(--muted)}.login-card form{text-align:left;margin-top:18px}.login-card label{font-weight:bold;margin:12px 0 4px;display:block}.login-card .btn{width:100%;margin-top:16px;text-align:center}.alert{background:#fff1f0;border:1px solid #ffc7c2;color:#a82416;border-radius:12px;padding:10px}.demo-users{margin-top:18px;text-align:left;background:#f6f8ff;border-radius:14px;padding:12px;color:var(--muted);font-size:13px}.constancia{background:white;border:1px solid var(--border);max-width:900px;margin:0 auto;padding:42px;border-radius:12px;box-shadow:0 8px 24px rgba(12,47,104,.08);font-family:Georgia, 'Times New Roman', serif}.constancia-head{display:flex;align-items:center;gap:20px;text-align:center}.constancia-head img{width:110px;height:110px;object-fit:contain}.constancia-head h2{font-size:24px;margin:0;text-transform:uppercase}.constancia h1{text-align:center;text-transform:uppercase;margin:36px 0 24px}.folio{text-align:right;font-weight:bold}.texto-constancia{font-size:18px;line-height:1.75;text-align:justify}.firma{margin-top:60px;text-align:center}.linea{width:260px;height:1px;background:#222;margin:0 auto 8px}.qrbox{display:flex;align-items:center;gap:16px;border-top:1px solid var(--border);margin-top:32px;padding-top:16px;font-family:Arial, Helvetica, sans-serif}.qrbox img{width:130px;height:130px}.verify{max-width:760px}.valid{background:#e9f6ed;color:#1d6b35;border-radius:14px;padding:14px;font-weight:bold;margin-bottom:14px}.invalid{background:#fff1f0;color:#a82416;border-radius:14px;padding:14px;font-weight:bold;margin-bottom:14px}@media (max-width:900px){.sidebar{position:static;width:auto;height:auto}.main{margin-left:0}.hero{flex-direction:column;align-items:flex-start}.panel-head{flex-direction:column;align-items:flex-start}.constancia-head{flex-direction:column}.search{width:100%}}@media print{body{background:white}.no-print,.sidebar,.topbar,.messages{display:none!important}.main{margin:0;padding:0}.constancia{box-shadow:none;border:0;border-radius:0;max-width:100%;padding:20px}.panel{box-shadow:none}.btn{display:none}}
.password-wrap{display:flex;gap:8px;align-items:center}.password-wrap input{flex:1}.toggle-password{border:1px solid var(--border);background:#eef4ff;color:var(--blue-dark);font-weight:bold;border-radius:10px;padding:10px 12px;cursor:pointer}.two-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.two-cols p{margin:0}.two-cols .full{grid-column:1/-1}.two-panels{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.form-control{width:100%;border:1px solid var(--border);border-radius:12px;padding:10px;background:white}.constancia-table{font-family:Arial, Helvetica, sans-serif;margin:18px 0}.constancia-table th,.constancia-table td{font-size:13px;padding:8px}.attendance-sheet{background:white;color:#000;max-width:1120px;margin:18px auto;padding:30px;border:1px solid #bbb;font-family:Arial, Helvetica, sans-serif}.sheet-head{display:flex;align-items:center;gap:20px;margin-bottom:18px}.sheet-logo img{width:100px;height:80px;object-fit:contain}.sheet-head h1{font-size:25px;text-align:center;flex:1;font-weight:500;letter-spacing:.5px}.sheet-meta table,.sheet-table{border-collapse:collapse;width:100%}.sheet-meta th,.sheet-meta td{border:1px solid #222;padding:5px;font-size:11px;text-align:left}.sheet-meta th{background:#dedede;font-weight:bold}.sheet-table th,.sheet-table td{border:1px solid #222;padding:4px;font-size:11px;text-align:center;vertical-align:middle}.sheet-table th{background:#d8d8d8;color:#000}.sheet-table .name-cell{text-align:left;min-width:240px}.sheet-table .date-col{writing-mode:vertical-rl;transform:rotate(180deg);white-space:nowrap;min-width:24px;height:74px;font-size:9px}.sheet-table .mark{font-weight:bold;min-width:24px}.sin-derecho td{background:#fff1f0!important;color:#9f1d1d}.sheet-foot{display:flex;justify-content:space-between;gap:40px;margin-top:90px;font-size:11px}.exclusive{text-align:center}.signature{margin-top:70px;font-size:13px}.signature span{display:inline-block;border-bottom:1px solid #000;width:260px;margin-left:10px}.source{text-align:center;margin-top:60px;font-size:10px;font-weight:bold}.sheet-table-wrap{overflow:auto}.actions.full{grid-column:1/-1}@media(max-width:900px){.two-cols{grid-template-columns:1fr}.sheet-head{flex-direction:column}.attendance-sheet{padding:12px}.sheet-foot{flex-direction:column;margin-top:32px}}@media print{@page{size:landscape;margin:10mm}.attendance-sheet{max-width:100%;border:0;margin:0;padding:0}.sheet-table th,.sheet-table td{font-size:8px;padding:2px}.sheet-meta th,.sheet-meta td{font-size:8px;padding:2px}.sheet-head h1{font-size:18px}.sheet-logo img{width:70px;height:60px}.sheet-foot{margin-top:55px;font-size:8px}.source{margin-top:35px}.no-print{display:none!important}.table-wrap{overflow:visible}}