:root{
  --navy:#062044;--navy-2:#082a56;--navy-3:#0b356c;--blue:#0f63d6;--blue-2:#1f7aff;
  --green:#16a65a;--purple:#6b51c7;--orange:#f28a16;--gold:#c99a2e;
  --bg:#f5f8fc;--panel:#ffffff;--text:#071633;--muted:#53627b;--line:#dbe5f0;
  --soft:#f8fbff;--ok:#157347;--danger:#b42318;--warning:#b7791f;
  --shadow:0 14px 42px rgba(7,22,51,.08);--radius:16px;--sidebar:292px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--text);font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:linear-gradient(135deg,#f8fbff 0%,var(--bg) 72%);font-size:15px;font-weight:400;line-height:1.45;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{text-decoration:none;color:var(--blue);font-weight:600}.app-shell{display:flex}.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar);background:linear-gradient(180deg,#061b39 0%,#082d5b 100%);color:white;padding:14px 12px;display:flex;flex-direction:column;z-index:100;box-shadow:16px 0 44px rgba(7,29,56,.20)}.side-brand{padding:0 0 18px;margin-bottom:10px}.brand-logo{width:184px;max-width:100%;display:block;background:white;border-radius:14px;padding:8px;margin:0 auto;box-shadow:0 14px 28px rgba(0,0,0,.18);object-fit:contain}.side-nav{display:flex;flex-direction:column;gap:8px;flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding-right:4px;scrollbar-width:thin}.side-nav a{display:flex;align-items:center;gap:13px;color:#edf6ff;padding:13px 14px;border-radius:12px;border:1px solid transparent;font-weight:600;transition:.16s ease;font-size:16px}.side-nav a .nav-ico{width:24px;text-align:center;font-size:22px;line-height:1;opacity:.96}.side-nav a:hover,.side-nav a.active{background:linear-gradient(90deg,#1268e6,#0d56c8);border-color:rgba(255,255,255,.12);color:#fff;box-shadow:0 10px 22px rgba(0,0,0,.16)}.side-footer{border-top:1px solid rgba(255,255,255,.14);padding:16px 4px 2px;flex-shrink:0}.school-chip{display:flex;gap:10px;align-items:center;color:#e9f4ff;font-size:12px;line-height:1.35}.school-chip span{width:40px;height:40px;border-radius:999px;display:grid;place-items:center;background:rgba(255,255,255,.18);font-size:20px}.school-chip strong{font-weight:600;color:white}.app-main{margin-left:var(--sidebar);width:calc(100% - var(--sidebar));min-height:100vh;display:flex;flex-direction:column}.topbar{height:112px;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 34px;position:sticky;top:0;z-index:60}.top-title h1{margin:0;color:var(--text);font-size:31px;font-weight:650;letter-spacing:-.035em}.top-title p{margin:6px 0 0;color:#334365;font-size:17px}.top-meta{display:flex;align-items:center;gap:24px;color:#2a3b5e}.top-date,.top-user{display:flex;gap:10px;align-items:center;font-size:16px}.top-user{border-left:1px solid var(--line);padding-left:24px}.wrap{width:min(1370px,100%);margin:0 auto;padding:34px}.app-footer{display:flex;justify-content:space-between;color:#67748c;font-size:13px;padding:0 34px 24px}.app-footer:after{content:"Versión 4.4"}.dashboard-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:6px 0 24px}.dashboard-head h2{margin:0;font-size:28px;font-weight:650;letter-spacing:-.025em}.page-title{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}.page-title h1{margin:0;font-size:31px;font-weight:650;letter-spacing:-.03em}.page-title p{margin:7px 0 0;color:var(--muted);line-height:1.45}.card{background:rgba(255,255,255,.98);border:1px solid rgba(219,228,239,.95);border-radius:var(--radius);padding:22px;margin-bottom:22px;box-shadow:var(--shadow)}.card.compact{padding:18px}.card h1,.card h2,.card h3{margin-top:0;color:var(--text);font-weight:650}.card h2{font-size:21px;margin-bottom:8px}.muted{color:var(--muted);line-height:1.5}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;align-items:start}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-section{border:1px solid var(--line);background:linear-gradient(180deg,#fff,#fbfdff);border-radius:18px;padding:18px}.form-section h3{margin:0 0 14px;font-size:16px;color:#22324a}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px;margin-top:18px}.stat-grid-dashboard{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:22px}.stat{position:relative;display:flex;align-items:center;gap:20px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:var(--shadow);min-height:136px}.stat:before,.stat:after{display:none}.stat h2{font-size:39px;line-height:1;margin:0 0 3px;color:var(--text);font-weight:650;letter-spacing:-.04em}.stat p{margin:0;color:var(--text);font-size:18px;font-weight:500}.stat small{display:block;color:#53627b;font-size:15px;margin-top:7px}.stat-icon{width:66px;height:66px;flex:0 0 66px;border-radius:10px;display:grid;place-items:center;color:#fff;font-size:29px;box-shadow:0 14px 28px rgba(15,99,214,.20)}.stat-blue .stat-icon{background:linear-gradient(180deg,#1f7aff,#0758d6)}.stat-green .stat-icon{background:linear-gradient(180deg,#28bd70,#139650)}.stat-purple .stat-icon{background:linear-gradient(180deg,#7b65d8,#5740b8)}.stat-orange .stat-icon{background:linear-gradient(180deg,#ff9e24,#ef7d0d)}.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.dashboard-card{min-height:290px;margin-bottom:0}.small-card{min-height:230px}.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:4px}.card-head h2{margin:0;font-size:21px;font-weight:650}.btn-mini{display:inline-flex;align-items:center;justify-content:center;border:1px solid #c8d7eb;border-radius:8px;padding:7px 12px;background:#fff;color:#005bd4;font-size:13px}.date-chip{display:inline-flex;gap:8px;align-items:center;color:#2b3d61;font-weight:500}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.6)}.table-wrap.clean{border:0;border-radius:0;box-shadow:none}table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;min-width:760px}th,td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}th{background:linear-gradient(180deg,#edf3fa,#e5edf6);color:#34445a;font-size:12px;text-transform:uppercase;letter-spacing:.045em;font-weight:650;position:sticky;top:0;z-index:1}.dashboard-table{min-width:0}.dashboard-table th{background:#fff;font-size:14px;text-transform:none;letter-spacing:0;color:var(--text);font-weight:650}.dashboard-table td{font-size:15px;color:#071633}tbody tr:nth-child(even){background:#fbfdff}tbody tr:hover{background:#f1f7ff}tbody tr:last-child td{border-bottom:0}.card-link{text-align:right;padding-top:14px}.card-link a{font-weight:500;color:#005bd4}.empty-state{color:#5b6880;background:#f5f8fc;border:1px dashed #cfddeb;border-radius:14px;padding:18px;margin-top:18px}.teacher-list{list-style:none;margin:10px 0 0;padding:0}.teacher-list li{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:10px 3px;border-bottom:1px solid var(--line)}.teacher-list li:before{content:"•";color:var(--text);margin-right:8px}.teacher-list li span{flex:1}.teacher-list li strong{font-size:13px;color:#005bd4;background:#eaf3ff;border-radius:999px;padding:5px 12px;font-weight:600}.week-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:0;margin:20px 0 10px}.day-box{display:flex;flex-direction:column;align-items:center;gap:5px;padding:7px 4px;border-right:1px solid var(--line);color:var(--text)}.day-box:last-child{border-right:0}.day-box span{font-size:13px;color:#1c2a44;font-weight:500}.day-box em{font-style:normal;font-size:16px;color:#071633}.day-box strong{display:grid;place-items:center;width:36px;height:36px;border-radius:9px;background:#e9f2ff;color:#075bd4;font-weight:650}.day-box:hover strong{background:#d9eaff}.quick-card{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff}.quick-card strong{display:block;font-size:16px;color:#1c2d43;font-weight:600}.quick-card span{display:block;color:var(--muted);font-size:13px;margin-top:3px}.icon-box{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:#eef5ff;color:var(--blue);font-weight:650}label{display:block;font-weight:600;font-size:13px;margin:0 0 7px;color:#34445a}input,select,textarea{width:100%;min-height:44px;padding:11px 13px;border:1px solid #cbd7e6;border-radius:13px;background:#fff;color:var(--text);outline:none;transition:.15s;border-color:#cbd7e6;font:inherit}textarea{min-height:90px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:var(--blue-2);box-shadow:0 0 0 4px rgba(36,113,184,.12);background:#fbfdff}input[type="checkbox"]{width:auto;min-height:auto;transform:scale(1.16);margin-right:8px;accent-color:var(--blue)}.btn,.button,button.btn,button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 17px;border-radius:13px;border:0;color:white!important;background:linear-gradient(180deg,var(--blue),#0757c5);box-shadow:0 12px 24px rgba(15,99,214,.19);font-weight:600;letter-spacing:0;text-decoration:none!important;cursor:pointer;transition:.14s ease;white-space:nowrap}.btn:hover,button:hover{transform:translateY(-1px);filter:brightness(1.04);box-shadow:0 16px 30px rgba(21,90,156,.26)}.btn.secondary{background:linear-gradient(180deg,#6c7b8f,#4a5869);box-shadow:0 10px 20px rgba(74,88,105,.16)}.btn.light{background:#fff;color:var(--blue)!important;border:1px solid #bdd3ec;box-shadow:0 6px 16px rgba(12,49,93,.06)}.btn.light:hover{background:#f4f8fd}.btn.success{background:linear-gradient(180deg,#1f9d61,#157347);box-shadow:0 10px 20px rgba(21,115,71,.16)}.btn.danger{background:linear-gradient(180deg,#dc3545,var(--danger));box-shadow:0 10px 20px rgba(180,35,24,.18)}.btn.gold{background:linear-gradient(180deg,#e0bd68,var(--gold));color:#142033!important;box-shadow:0 10px 20px rgba(197,154,54,.22)}.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:14px}.searchbar{display:flex;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px 12px;margin:14px 0}.searchbar span{color:var(--muted);font-weight:600}.searchbar input{border:0;box-shadow:none;min-height:36px;padding:6px;background:transparent}.searchbar input:focus{box-shadow:none}.actions{white-space:nowrap}.actions a{display:inline-flex;margin:3px 5px 3px 0;padding:7px 10px;border-radius:10px;background:#eaf2ff;color:#174a83;font-size:13px;font-weight:600}.actions a:hover{background:#dbeaff;color:#0d315d}.actions a.danger{background:#ffe6e6;color:#a32016}.actions a.danger:hover{background:#ffd7d7}.badge{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;background:#e5f3ff;color:#075985;font-size:12px;font-weight:600;border:1px solid #c9e5fb}.badge.ok{background:#ecfdf3;color:#146c43;border-color:#b7efcc}.badge.warn{background:#fff8e6;color:#855d0b;border-color:#f1d78a}.alert{padding:13px 15px;border-radius:13px;margin:14px 0;font-weight:500}.alert.error{background:#fff1f1;color:#a32016;border:1px solid #ffc9c9}.alert.ok{background:#ecfdf3;color:#146c43;border:1px solid #b7efcc}.alert.warn{background:#fff8e6;color:#805b10;border:1px solid #f4d98a}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top left,rgba(36,113,184,.28),transparent 360px),linear-gradient(135deg,#071d38,#155a9c 65%,#f3f6fb 65%)}.login{width:100%;max-width:455px;margin:0;padding:36px;border-radius:26px;box-shadow:0 24px 70px rgba(9,33,63,.22)}.login .brand-mark{margin:0 auto 15px;background:linear-gradient(135deg,var(--blue),var(--navy));border:0}.login h2{text-align:center;font-size:26px;margin-bottom:4px}.login .muted{text-align:center;margin-bottom:24px}.report-head{text-align:center;margin-bottom:24px;padding:10px 0 18px;border-bottom:4px double #cbd7e6}.report-head h1{margin:6px 0;font-size:25px}.report-head h2{margin:4px 0;color:var(--navy-2)}.report-head p{margin:4px 0;color:#465568}.printbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}.backup-panel{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}.backup-card{border:1px solid var(--line);border-radius:20px;background:linear-gradient(180deg,#fff,#fbfdff);padding:22px}.backup-card h2{display:flex;gap:10px;align-items:center}.backup-card .big-icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:#eef5ff;color:var(--blue);font-weight:650}.report-filter-grid .form-section{min-height:210px;display:flex;flex-direction:column;justify-content:space-between}.report-filter-grid h3{margin-bottom:12px}.report-filter-grid form{margin:0}.report-head strong{font-weight:650;color:#22324a}
@media(max-width:1100px){.stat-grid-dashboard{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}.week-grid{grid-template-columns:repeat(7,minmax(60px,1fr));overflow:auto}.dashboard-card{min-height:auto}}
.side-nav::-webkit-scrollbar{width:8px}.side-nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.22);border-radius:999px}.side-nav::-webkit-scrollbar-track{background:transparent}
@media(max-width:980px){.app-shell{display:block}.sidebar{position:static;width:auto;min-height:auto}.brand-logo{margin:0;width:170px}.side-nav{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.app-main{margin-left:0;width:100%}.topbar{position:static;height:auto;padding:18px 20px}.wrap{padding:20px}.grid-2{grid-template-columns:1fr}.page-title h1{font-size:27px}.card{padding:18px}.top-meta{flex-wrap:wrap}}
@media(max-width:640px){.topbar{align-items:flex-start;gap:12px;flex-direction:column}.top-title h1{font-size:26px}.stat-grid-dashboard{grid-template-columns:1fr}.stat h2{font-size:34px}.stat{min-height:116px}.btn,button{width:100%}.toolbar .btn,.toolbar button{width:auto}.page-title{display:block}.week-grid{grid-template-columns:repeat(4,1fr)}.app-footer{display:block}.dashboard-head{display:block}.dashboard-head .btn{margin-top:12px}}
@media print{.sidebar,.topbar,.printbar,footer,.no-print,.app-footer{display:none!important}.app-main{margin:0;width:100%}body{background:white;color:#000;font-size:12px}.wrap{max-width:none;margin:0;padding:0}.card{border:0;box-shadow:none;padding:0;margin:0;background:white}.report-head{display:block}table{font-size:11px;min-width:0;border-collapse:collapse}th{background:#eee!important;position:static;color:#000}th,td{border:1px solid #999;padding:6px}.table-wrap{border:0;box-shadow:none}a{color:#000;text-decoration:none}.alert{display:none!important}.report-head p{font-size:12px}}
.detail-list{margin:10px 0 0 0;padding-left:18px;color:#263650}.detail-list li{padding:4px 0;border-bottom:1px dashed #dbe5f0}.detail-list li:last-child{border-bottom:0}details summary{cursor:pointer;color:#005bd4;font-weight:600}button:disabled,.btn:disabled{opacity:.55;cursor:not-allowed;filter:grayscale(.15);transform:none!important}.muted{color:var(--muted)}

/* Menú lateral agrupado */
.nav-group{margin:0;border:0}.nav-group summary{list-style:none}.nav-group summary::-webkit-details-marker{display:none}.nav-toggle{display:flex;align-items:center;gap:13px;color:#edf6ff;padding:13px 14px;border-radius:12px;border:1px solid transparent;font-weight:600;transition:.16s ease;font-size:16px;cursor:pointer;user-select:none}.nav-toggle .nav-ico{width:24px;text-align:center;font-size:22px;line-height:1;opacity:.96}.nav-toggle:after{content:"▾";margin-left:auto;font-size:12px;opacity:.78;transition:.16s ease}.nav-group[open] .nav-toggle:after{transform:rotate(180deg)}.nav-toggle:hover,.nav-group[open]>.nav-toggle{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.10);color:#fff}.nav-sub{display:flex;flex-direction:column;gap:7px;margin:7px 0 2px;padding-left:10px;border-left:1px solid rgba(255,255,255,.14)}.side-nav .nav-sub a{padding:11px 12px;font-size:15px;border-radius:10px}.side-nav .nav-sub a .nav-ico{font-size:18px;width:21px}
@media(max-width:980px){.nav-sub{padding-left:0;border-left:0}.nav-group{min-width:180px}.side-nav{align-items:start}.nav-toggle,.nav-group{width:100%}.nav-sub{width:100%}}


/* Dashboard: calendario mensual */
.calendar-card{margin-top:18px}
.calendar-nav{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.month-calendar{width:100%;border-collapse:separate;border-spacing:0;table-layout:fixed}
.month-calendar th{text-align:center;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);background:#f8fafc}
.month-calendar td{height:82px;vertical-align:top;border-top:1px solid var(--line);border-right:1px solid var(--line);background:#fff}
.month-calendar td:last-child{border-right:0}
.calendar-empty{background:#fafafa!important}
.calendar-day{padding:8px}
.calendar-day span{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:9px;font-weight:650;color:#253858}
.calendar-day a{display:flex;min-height:64px;flex-direction:column;align-items:flex-start;gap:8px;color:inherit;text-decoration:none}
.calendar-day strong{font-size:12px;font-weight:650;border-radius:999px;padding:5px 9px;background:#e9f2ff;color:#075bd4}
.calendar-day.has-exam{background:#f4f8ff}
.calendar-day.has-exam span{background:#075bd4;color:#fff}
.calendar-day.has-exam:hover{background:#eaf3ff}
.calendar-day.today{box-shadow:inset 0 0 0 2px rgba(7,91,212,.18)}
.calendar-day.today span{border:1px solid rgba(7,91,212,.25)}
@media(max-width:760px){
  .calendar-nav{justify-content:flex-start}
  .month-calendar th{font-size:10px}
  .month-calendar td{height:66px}
  .calendar-day{padding:5px}
  .calendar-day a{min-height:52px;gap:5px}
  .calendar-day strong{font-size:10px;padding:4px 6px}
}