/* Tema: cambie estas variables para adaptar la paleta a su identidad visual. */
:root{
  --navy:#0b1f3a; --navy-2:#13315c; --primary:#1d4ed8; --primary-dark:#1e40af; --accent:#06b6d4;
  --bg:#f3f6fb; --surface:#fff; --text:#0f172a; --muted:#64748b; --border:#e2e8f0;
  --ok:#15803d; --ok-bg:#dcfce7; --err:#b91c1c; --err-bg:#fee2e2; --warn:#a16207; --warn-bg:#fef3c7;
  --radius:10px; --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;font:15px/1.5 var(--font);color:var(--text);background:var(--bg)}
h1,h2,h3{margin:0 0 .5rem;line-height:1.2} h3{font-size:1.05rem}
a{color:var(--primary)} code{background:#eef2f7;padding:1px 5px;border-radius:4px;font-size:.9em}
.muted{color:var(--muted)} small{display:block;color:var(--muted)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Formularios */
label{display:flex;flex-direction:column;gap:.3rem;font-weight:600;font-size:.9rem}
input,select{font:inherit;padding:.6rem .75rem;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);min-width:0;width:100%}
input:disabled{background:#f1f5f9}
input:focus,select:focus{border-color:var(--primary);outline:2px solid #bfdbfe}
.check{flex-direction:row;align-items:center;gap:.5rem;font-weight:400}
.check input{width:auto}
.stack{display:flex;flex-direction:column;gap:1rem}
.row{display:flex;gap:.6rem;align-items:center}.row.wrap{flex-wrap:wrap}.row.between{justify-content:space-between}
.row input,.row select{width:auto;flex:1 1 160px}.short{max-width:90px}
.narrow{max-width:560px}
.btn{display:inline-block;border:0;border-radius:8px;padding:.6rem 1rem;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;text-align:center;transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.btn-primary{background:linear-gradient(120deg,var(--primary),#0e7490);color:#fff;box-shadow:0 5px 14px rgba(29,78,216,.2)}
.btn-primary:hover{background:linear-gradient(120deg,var(--primary-dark),#155e75);box-shadow:0 8px 20px rgba(29,78,216,.3)}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid #bfdbfe}
.btn-ghost:hover{background:#eff6ff;border-color:var(--accent);color:var(--navy);box-shadow:0 5px 14px rgba(6,182,212,.15)}
.is-disabled{opacity:.5;pointer-events:none}
.link-danger{background:none;border:0;color:var(--err);cursor:pointer;font:inherit;padding:0}
.student-actions{display:flex;align-items:center;gap:.35rem}
.student-actions form{margin:0}
.icon-action{display:inline-grid;place-items:center;width:32px;height:32px;padding:0;border:1px solid var(--border);border-radius:7px;background:#fff;color:var(--primary);cursor:pointer;text-decoration:none}
.icon-action:hover{background:#eff6ff;border-color:var(--accent)}
.icon-action.danger{color:var(--err)}
.icon-action.danger:hover{background:var(--err-bg);border-color:var(--err)}
.icon-action svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* Alertas y badges */
.alert{padding:.75rem 1rem;border-radius:8px;margin-bottom:1rem;font-weight:500}
.alert-ok{background:var(--ok-bg);color:var(--ok)}.alert-error{background:var(--err-bg);color:var(--err)}
.badge{padding:2px 10px;border-radius:99px;font-size:.78rem;font-weight:600}
.badge-active{background:var(--ok-bg);color:var(--ok)}.badge-pending{background:var(--warn-bg);color:var(--warn)}.badge-disabled{background:var(--err-bg);color:var(--err)}

/* Autenticación */
.auth-body{min-height:100vh;background:linear-gradient(135deg,var(--navy),var(--navy-2) 60%,#0e7490)}
.auth-shell{min-height:100vh;display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:2rem;max-width:1100px;margin:0 auto;padding:2rem}
.auth-brand{color:#fff}.auth-brand h1{font-size:2.3rem;margin-top:2rem;max-width:14ch}.auth-brand p{color:#cbd5e1;max-width:38ch}
.auth-card{background:var(--surface);border-radius:16px;padding:2rem;box-shadow:0 20px 50px rgba(0,0,0,.3);display:flex;flex-direction:column;gap:1rem}
.auth-card form{margin:0}.links{text-align:center;margin:.25rem 0 0}

/* Marca */
.brand{display:flex;align-items:center;gap:.6rem;font-weight:700;font-size:1.15rem;color:#fff}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--accent);color:var(--navy);font-weight:800}
.brand-badge{width:38px;height:38px;object-fit:contain;border-radius:9px;background:#fff;padding:3px}
.badge-preview{display:grid;place-items:center;width:140px;height:140px;border:1px dashed #94a3b8;border-radius:16px;background:linear-gradient(145deg,#eff6ff,#ecfeff);color:var(--muted);overflow:hidden}
.badge-preview img{width:100%;height:100%;object-fit:contain}
.file-picker{position:relative;display:inline-flex;align-self:flex-start;align-items:center;justify-content:center;overflow:hidden;padding:.6rem 1rem;border-radius:8px;background:linear-gradient(120deg,#0891b2,#2563eb);color:#fff;font-size:.95rem;cursor:pointer;transition:transform .16s ease,box-shadow .16s ease}
.file-picker:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(8,145,178,.25)}
.file-picker input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}
.file-picker:focus-within{outline:2px solid var(--accent);outline-offset:3px}

/* App */
.app-body{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.sidebar{background:var(--navy);padding:1.2rem 1rem;position:sticky;top:0;height:100vh}
.sidebar nav{display:flex;flex-direction:column;gap:2px;margin-top:1.5rem}
.sidebar nav a{color:#cbd5e1;text-decoration:none;padding:.6rem .8rem;border-radius:8px}
.sidebar nav a:hover{background:var(--navy-2);color:#fff}
.sidebar nav a.active{background:var(--primary);color:#fff}
.topbar{display:flex;align-items:center;gap:1rem;background:var(--surface);border-bottom:1px solid var(--border);padding:.8rem 1.5rem;position:sticky;top:0;z-index:5}
.topbar h2{margin:0;flex:1;font-size:1.2rem}
.menu-btn{display:none}
.userbox{display:flex;align-items:center;gap:1rem}.userbox a{text-decoration:none;color:var(--text);text-align:right}.userbox form{margin:0}
.content{padding:1.5rem;display:flex;flex-direction:column;gap:1rem;min-width:0}
.main{min-width:0}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;align-items:start}
.toolbar{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.report-toolbar{align-items:center}
.report-actions{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}
.print-average{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1rem;border:1px solid #cbd5e1;background:linear-gradient(180deg,#fff,#f8fbff);color:var(--navy);font-weight:700;box-shadow:0 2px 8px rgba(15,23,42,.08)}
.print-average:hover{background:linear-gradient(180deg,#eff6ff,#f8fbff);border-color:var(--primary);color:var(--primary)}
.print-average span{font-size:1.05rem;line-height:1}
.table-wrap{overflow-x:auto;padding:0}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:.7rem 1rem;border-bottom:1px solid var(--border);white-space:nowrap}
th{background:#f8fafc;font-size:.85rem;color:var(--muted)}
th:nth-child(4),td:nth-child(4){text-align:center}
.list{list-style:none;margin:1rem 0 0;padding:0}.list li{display:flex;justify-content:space-between;gap:1rem;padding:.5rem 0;border-bottom:1px solid var(--border)}.list form{margin:0}
.pager{display:flex;align-items:center;gap:1rem;justify-content:center}
.perm-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin-top:1rem}
fieldset{border:1px solid var(--border);border-radius:8px;padding:.75rem;display:flex;flex-direction:column;gap:.4rem}legend{font-weight:700;padding:0 .4rem}
.score{
  width:118px;
  min-width:118px;
  height:46px;
  text-align:center;
  font-size:1.05rem;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--navy);
  background:linear-gradient(180deg,#fff,#f8fbff);
  border:2px solid #dbe2ec;
  border-radius:12px;
  padding:.5rem .75rem;
  box-shadow:inset 0 1px 2px rgba(15,23,42,.04);
  transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease,background .15s ease;
}
.score:hover{border-color:#93c5fd;transform:translateY(-1px)}
.score:focus{border-color:var(--primary);background:#eff6ff;box-shadow:0 0 0 4px rgba(59,130,246,.14)}
.score.dirty{border-color:var(--accent);background:#ecfeff;box-shadow:0 0 0 4px rgba(6,182,212,.09)}
.score.invalid{border-color:var(--err);background:var(--err-bg);box-shadow:0 0 0 4px rgba(185,28,28,.08)}
.score::-webkit-outer-spin-button,.score::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.score[type=number]{-moz-appearance:textfield}
#status{display:inline-block;min-height:1.2em;transition:color .15s ease,background .15s ease,border-color .15s ease;padding:.25rem .5rem;border-radius:999px;font-size:.9rem}
#status.status-neutral{color:var(--muted);background:transparent}
#status.status-success{color:var(--ok);background:var(--ok-bg);border:1px solid rgba(21,128,61,.18)}
#status.status-error{color:var(--err);background:var(--err-bg);border:1px solid rgba(185,28,28,.15)}
.report-print-sheet{display:none}
.empty{text-align:center;padding:2rem}
@media print{
  @page{size:A4 portrait;margin:13mm 15mm}
  html,body{width:auto;min-height:0;background:#fff !important;color:#172033 !important}
  body{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .app-body{display:block !important;min-height:0 !important}
  .sidebar,.topbar,.content > *:not(.report-print-sheet),.report-actions,.btn,.toolbar,.stat-grid,.grid2,.card:not(.report-print-sheet){display:none !important}
  .main,.content{display:block !important;width:100% !important;min-width:0 !important;margin:0 !important;padding:0 !important}
  .report-print-sheet{
    display:block !important;
    width:100%;
    max-width:none;
    margin:0;
    padding:0;
    border:0;
    border-radius:0;
    background:#fff;
    box-shadow:none;
    color:#172033;
    font:10.5pt/1.45 Arial,Helvetica,sans-serif;
  }
  .report-print-header{display:grid;grid-template-columns:92px 1fr 92px;align-items:center;gap:12px;margin:0 0 16px}
  .report-print-logo{grid-column:1;grid-row:1;width:82px;height:82px;display:grid;place-items:center;overflow:hidden;border:1px solid #d8e0ec;border-radius:14px;background:#fff;color:#25466f;font-weight:800}
  .report-print-logo img{display:block;width:100%;height:100%;object-fit:contain;padding:7px}
  .report-print-heading{grid-column:2;grid-row:1;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px}
  .report-print-line{font-size:11pt;font-weight:700;letter-spacing:.015em;color:#172033}
  .report-print-title{margin-top:4px;font-size:14pt;font-weight:800;letter-spacing:.025em;color:#1d4d8f}
  .report-print-divider{height:1.5px;background:#1d4d8f;margin:13px 0}
  .report-print-section-title{margin:12px 0 8px;font-size:11pt;font-weight:800;letter-spacing:.025em;color:#1d3557}
  .report-print-list{list-style:none;padding:0;margin:0 0 14px;display:grid;grid-template-columns:1fr 1fr;gap:5px 18px;font-size:10.5pt}
  .report-print-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:10px 0 20px}
  .report-print-stat{text-align:center;padding:11px 8px 9px;border:1px solid #dbe3ee;border-radius:9px;background:#f6f9fd}
  .report-print-number{font-size:19pt;font-weight:800;line-height:1.2;color:#1d4d8f;font-variant-numeric:tabular-nums}
  .report-print-label{margin-top:4px;font-size:9pt;color:#53647a}
  .report-print-table-title{margin:16px 0 8px;font-size:11pt;font-weight:800;letter-spacing:.02em;color:#1d3557}
  .report-print-table{width:100%;border-collapse:collapse;border-spacing:0;font-size:10pt}
  .report-print-table thead{display:table-header-group}
  .report-print-table tr{break-inside:avoid;page-break-inside:avoid}
  .report-print-table th,.report-print-table td{padding:7px 9px;border-bottom:1px solid #d8e0e9;text-align:left;vertical-align:middle}
  .report-print-table th{border-top:1px solid #c8d3e1;background:#edf3fa;color:#294363;font-size:9pt;font-weight:800}
  .report-print-table td:first-child,.report-print-table th:first-child{width:16%}
  .report-print-table td:last-child,.report-print-table th:last-child{width:22%;text-align:center;font-weight:700;font-variant-numeric:tabular-nums}
  .report-print-table tbody tr:nth-child(even){background:#f8fafc}
}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem}
.stat-card{display:flex;flex-direction:column;gap:.25rem}.stat-card>span{color:var(--muted);font-size:.9rem}.stat-card strong{font-size:1.8rem;font-variant-numeric:tabular-nums}.stat-card small{margin-top:.2rem}
.chart-list{display:flex;flex-direction:column;gap:.8rem;margin-top:1rem}
.chart-row{display:grid;grid-template-columns:minmax(90px,1fr) minmax(100px,3fr) 52px;align-items:center;gap:.65rem;font-size:.9rem}
.chart-row>span{overflow-wrap:anywhere}.chart-row>b{text-align:right;font-variant-numeric:tabular-nums}
.chart-track{height:12px;background:#e2e8f0;border-radius:99px;overflow:hidden}.chart-track i{display:block;height:100%;background:var(--primary);border-radius:inherit}

/* Portada del panel */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.hero{position:relative;overflow:hidden;border-radius:18px;padding:2rem;color:#fff;
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 55%,#0e7490 100%);box-shadow:0 18px 40px rgba(11,31,58,.25)}
.blob{position:absolute;border-radius:50%;filter:blur(2px);opacity:.55;transition:transform .25s ease-out;pointer-events:none}
.b1{width:260px;height:260px;right:-60px;top:-80px;background:radial-gradient(circle at 30% 30%,var(--accent),transparent 70%);animation:float 9s ease-in-out infinite}
.b2{width:200px;height:200px;left:35%;bottom:-90px;background:radial-gradient(circle at 40% 40%,#3b82f6,transparent 70%);animation:float 11s ease-in-out infinite reverse}
.b3{width:120px;height:120px;left:-30px;top:30%;background:radial-gradient(circle,#22d3ee,transparent 70%);animation:float 7s ease-in-out infinite}
@keyframes float{50%{margin-top:18px}}
.hero-body{position:relative;display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}
.eyebrow{margin:0;text-transform:capitalize;color:#a5f3fc;font-weight:600;font-size:.9rem}
.hero h1{font-size:clamp(1.8rem,4vw,2.8rem);margin:.3rem 0}
.hero-sub{color:#cbd5e1;max-width:52ch;margin:0 0 1.2rem}
.searchbox{max-width:440px}
.searchbox input{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:99px;padding:.75rem 1.1rem;backdrop-filter:blur(6px)}
.searchbox input::placeholder{color:#cbd5e1}
.searchbox input:focus{background:rgba(255,255,255,.2);border-color:var(--accent);outline:none}
.hero-side{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:.5rem}
.clock{font-size:clamp(2.2rem,5vw,3.4rem);font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.badge-role{background:rgba(255,255,255,.18);color:#fff}
.hero-stats{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:.8rem;margin-top:1.6rem}
.hero-stats div{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:.8rem 1rem;backdrop-filter:blur(6px)}
.hero-stats b{display:block;font-size:1.7rem;font-variant-numeric:tabular-nums}
.hero-stats span{color:#cbd5e1;font-size:.85rem}
.section-title{margin:.5rem 0}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:1rem}
.tile{display:flex;flex-direction:column;gap:.25rem;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.1rem;text-decoration:none;color:var(--text);
  transition:transform .15s ease-out,box-shadow .15s,border-color .15s;will-change:transform}
.tile:hover,.tile:focus-visible{border-color:var(--accent);box-shadow:0 12px 26px rgba(6,182,212,.18);transform:translateY(-4px)}
.tile[hidden]{display:none}
.tile-ico{display:grid;place-items:center;width:46px;height:46px;border-radius:13px;margin-bottom:.4rem;color:#fff;background:linear-gradient(135deg,var(--primary),var(--accent));box-shadow:0 5px 12px rgba(29,78,216,.2);transition:transform .2s ease,box-shadow .2s ease}
.tile-ico svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tile:hover .tile-ico,.tile:focus-visible .tile-ico{transform:rotate(-6deg) scale(1.1);box-shadow:0 8px 18px rgba(29,78,216,.3)}
@media (prefers-reduced-motion:reduce){.tile,.tile-ico{transition:none}.tile:hover,.tile:focus-visible,.tile:hover .tile-ico,.tile:focus-visible .tile-ico{transform:none}}
.bar{display:grid;grid-template-columns:110px 1fr 40px;align-items:center;gap:.7rem;margin:.6rem 0;font-size:.9rem}
.bar b{text-align:right}
.track{height:10px;background:#e8eef7;border-radius:99px;overflow:hidden}
.track i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width 1s cubic-bezier(.2,.8,.2,1)}
.tip-text{font-size:1.1rem;min-height:3.2em}

@media (max-width:900px){
  .auth-shell{grid-template-columns:1fr;padding:1rem}.auth-brand h1{font-size:1.6rem;margin-top:1rem}
  .app-body{grid-template-columns:1fr}
  .sidebar{position:fixed;inset:0 auto 0 0;width:250px;z-index:20;transform:translateX(-100%);transition:transform .2s}
  .sidebar.open{transform:none}.menu-btn{display:inline-block}
  .grid2,.grid3{grid-template-columns:1fr}
  .userbox small{display:none}
  .hero{padding:1.3rem}.hero-side{align-items:flex-start;text-align:left}.hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}.blob{animation:none}}