:root{--navy:#0a2e61;--blue:#0d4f9d;--cyan:#17a9d6;--bg:#f3f6fa;--card:#fff;--text:#152033;--muted:#66758a;--line:#dce4ee;--good:#147a4d;--warn:#b56a00;--bad:#b73333}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:260px;background:linear-gradient(180deg,#082b5c,#071d3b);color:#fff;padding:18px 14px;display:flex;flex-direction:column;gap:18px;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:11px;padding:4px 6px}.brand img{width:42px;height:42px;border-radius:10px;object-fit:cover;background:white}.brand span{display:flex;flex-direction:column}.brand strong{font-size:14px;line-height:1.2}.brand small{opacity:.72;line-height:1.2}.period-chip{background:#ffffff12;border:1px solid #ffffff20;padding:10px 12px;border-radius:12px}.period-chip span,.period-chip strong{display:block}.period-chip span{font-size:11px;text-transform:uppercase;opacity:.65}.period-chip strong{margin-top:3px}.sidebar nav{display:flex;flex-direction:column;gap:4px;overflow:auto}.sidebar nav a{padding:10px 12px;border-radius:9px;color:#e8f0fb;font-size:14px}.sidebar nav a:hover{background:#ffffff14}.nav-label{font-size:10px;text-transform:uppercase;letter-spacing:.12em;opacity:.48;padding:14px 12px 4px}.sidebar-bottom{margin-top:auto;border-top:1px solid #ffffff20;padding:14px 8px 0;display:flex;justify-content:space-between;align-items:center;gap:10px}.sidebar-bottom strong,.sidebar-bottom small{display:block}.sidebar-bottom small{opacity:.6;margin-top:2px}.logout{padding:7px 10px;border-radius:8px;background:#b73333}.content{flex:1;min-width:0;padding:28px}.content-top{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:20px}.content-top h1{margin:0;font-size:28px}.content-top p{margin:6px 0 0;color:var(--muted)}.grid{display:grid;gap:16px}.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--line);border-radius:15px;padding:18px}.metric span{display:block;color:var(--muted);font-size:13px}.metric strong{display:block;font-size:30px;margin-top:7px}.card h2,.card h3{margin-top:0}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px;background:white}.table{border-collapse:collapse;width:100%;min-width:760px}.table th,.table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:13px;vertical-align:middle}.table th{background:#eef4fb;color:#1c3d64;font-size:12px;text-transform:uppercase;letter-spacing:.03em;white-space:nowrap}.table tr:last-child td{border-bottom:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:0;border-radius:9px;padding:9px 13px;font-weight:650;cursor:pointer;font-size:13px}.btn-primary{background:var(--blue);color:#fff}.btn-secondary{background:#e7edf5;color:#24364e}.btn-success{background:var(--good);color:white}.btn-danger{background:var(--bad);color:white}.btn-sm{padding:6px 9px;font-size:12px}.actions{display:flex;gap:7px;flex-wrap:wrap}.toolbar{display:flex;gap:10px;align-items:end;justify-content:space-between;flex-wrap:wrap;margin-bottom:14px}.form-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.form-grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.form-grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}label{font-size:12px;color:#45556a;font-weight:650;display:flex;flex-direction:column;gap:6px}input,select,textarea{width:100%;border:1px solid #cfd9e5;border-radius:8px;padding:9px 10px;background:white;color:var(--text);font:inherit}input:focus,select:focus,textarea:focus{outline:2px solid #0d4f9d25;border-color:var(--blue)}.form-actions{display:flex;align-items:end;gap:8px}.alert{border-radius:10px;padding:11px 13px;margin-bottom:16px;border:1px solid}.alert.success{background:#edf9f3;border-color:#b8e4cd;color:#176343}.alert.error{background:#fff0f0;border-color:#efc2c2;color:#8d2525}.alert.info{background:#edf5ff;border-color:#c5daf4;color:#285078}.badge{display:inline-block;border-radius:999px;padding:4px 8px;background:#e9eef5;color:#33445c;font-size:11px;font-weight:700}.badge.good{background:#e1f5ea;color:#12673e}.badge.warn{background:#fff1d9;color:#8d5600}.badge.bad{background:#fee7e7;color:#952b2b}.muted{color:var(--muted)}.empty{padding:34px;text-align:center;color:var(--muted)}.course-card{display:flex;flex-direction:column;gap:12px}.course-card .meta{color:var(--muted);font-size:13px}.course-card .title{font-size:18px;font-weight:800}.section-title{margin:28px 0 12px}.stat-row{display:flex;gap:8px;flex-wrap:wrap}.tag{padding:5px 8px;border-radius:7px;background:#eef3f8;font-size:12px}.mini-note{font-size:12px;color:var(--muted)}
.matrix-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px;background:white}.matrix{border-collapse:collapse;min-width:2600px;width:100%;font-size:11px}.matrix th,.matrix td{border:1px solid #bdd0e2;padding:5px;text-align:center}.matrix th{background:#dcecf8;color:#102d4f}.matrix .dark{background:#103c70;color:white}.matrix .cyan{background:#28a9d2;color:white}.matrix .student{text-align:left;min-width:220px}.matrix input{min-width:62px;padding:6px 4px;text-align:center}.lock-btn{border:0;background:transparent;cursor:pointer;font-size:16px}.lock-cell{font-size:18px}.savebar{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:14px 0}.final-table input{max-width:88px}.grade-low{color:#b73333;font-weight:800}.grade-good{color:#177046;font-weight:800}.cert-box{max-width:900px;margin:auto;background:white;border:1px solid var(--line);padding:30px}.notice{background:#fff8df;border:1px solid #ead48a;padding:12px;border-radius:10px;color:#705e20}
@media(max-width:1050px){.grid.cols-4,.grid.cols-3{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:repeat(2,1fr)}.sidebar{width:220px}.content{padding:20px}}
@media(max-width:760px){.app-shell{display:block}.sidebar{position:relative;width:100%;height:auto}.sidebar nav{max-height:none}.content{padding:14px}.grid.cols-4,.grid.cols-3,.grid.cols-2,.form-grid,.form-grid.cols-3,.form-grid.cols-2{grid-template-columns:1fr}.content-top h1{font-size:23px}.sidebar-bottom{display:none}}
.audit-json{white-space:pre-wrap;word-break:break-word;background:#0b1626;color:#dce8f5;border-radius:10px;padding:12px;min-height:70px;max-height:340px;overflow:auto;font:12px/1.5 Consolas,Monaco,monospace}
/* Votaciones */
.vote-admin-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.candidate-admin-card{display:flex;flex-direction:column;gap:12px}.candidate-admin-card>img{width:100%;height:260px;object-fit:contain;background:#f7f9fc;border:1px solid var(--line);border-radius:12px}.candidate-placeholder{height:220px;display:grid;place-items:center;border:1px dashed #b8c5d5;border-radius:12px;background:#f5f7fa;color:var(--muted);font-weight:700}.candidate-admin-card h3{margin:10px 0 6px}.result-votes{font-size:32px;font-weight:800;color:var(--navy);margin-top:10px}.result-votes small{font-size:12px;color:var(--muted);font-weight:600}.vote-hero{background:linear-gradient(135deg,#0a2e61,#0d4f9d);color:#fff;padding:22px;border-radius:16px;margin-bottom:18px}.vote-hero h2{margin:10px 0 6px}.vote-hero p{max-width:760px;color:#e8f1ff}.candidate-vote-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}.candidate-vote-card{display:block;background:#fff;border:2px solid var(--line);border-radius:16px;padding:12px;cursor:pointer;transition:.18s ease;color:var(--text)}.candidate-vote-card input{position:absolute;opacity:0;pointer-events:none}.candidate-vote-card img{width:100%;height:280px;object-fit:contain;background:#f7f9fc;border-radius:11px}.candidate-vote-card h3{margin:12px 0 6px;font-size:17px}.candidate-vote-card p{min-height:42px;color:var(--muted);font-size:13px}.candidate-select{display:inline-flex;padding:7px 10px;border-radius:999px;background:#edf3fa;color:#284b73;font-size:12px;font-weight:800}.candidate-vote-card:has(input:checked){border-color:var(--blue);box-shadow:0 0 0 3px rgba(13,79,157,.12);transform:translateY(-2px)}.candidate-vote-card:has(input:checked) .candidate-select{background:var(--blue);color:#fff}.vote-submit{text-align:center;padding:22px 0 4px}.vote-submit .btn{min-width:260px;padding:13px 18px;font-size:15px}.vote-thanks{max-width:620px;margin:40px auto;background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px;text-align:center}.vote-check{width:78px;height:78px;margin:0 auto 15px;border-radius:50%;display:grid;place-items:center;background:#e5f7ee;color:var(--good);font-size:42px;font-weight:800}.vote-thanks h2{margin:5px 0 8px}@media(max-width:760px){.candidate-vote-card img{height:230px}.candidate-vote-grid,.vote-admin-grid{grid-template-columns:1fr}}
.winner-card{border-color:#9ecfb5;background:#fbfffd}