:root{
  --navy:#0d3568;
  --navy-2:#082b55;
  --gold:#f0c52e;
  --gold-2:#d9a817;
  --green:#1f9d55;
  --mint:#eaf8ee;
  --cream:#f5f2e8;
  --paper:#fffdf8;
  --line:#e7dcc0;
  --ink:#0f2850;
  --muted:#6d7890;
  --danger:#c83b31;
  --shadow:0 18px 44px rgba(13,53,104,.12);
}
*{box-sizing:border-box}
body{margin:0;background:var(--cream);color:var(--ink);font-family:Arial,Helvetica,sans-serif}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.hidden{display:none!important}
.login-screen{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#0d3568,#082b55 55%,#164d2b)}
.login-card{width:min(470px,100%);background:#fff;border-radius:28px;padding:30px;box-shadow:0 30px 90px rgba(0,0,0,.25)}
.brand-row{display:flex;gap:14px;align-items:center;margin-bottom:25px}.brand-row img{width:72px;height:72px;border-radius:50%;object-fit:cover}.brand-row span{display:block;font-size:11px;font-weight:900;letter-spacing:.12em;color:#826400}.brand-row strong{font-size:24px;color:var(--navy)}
.login-card h1{font-size:38px;line-height:1;margin:0 0 10px;color:var(--navy)}.login-card p{color:var(--muted);line-height:1.55;margin:0 0 22px}
form{display:grid;gap:14px}label{display:grid;gap:7px;font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.06em;color:#526070}
input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:#fffefa;color:var(--ink);padding:13px 14px;outline:none}textarea{min-height:100px;resize:vertical;text-transform:none;letter-spacing:0;font-weight:500;line-height:1.45}input:focus,select:focus,textarea:focus{border-color:var(--gold);box-shadow:0 0 0 4px rgba(240,197,46,.2)}
.login-card button,.primary{border:0;background:linear-gradient(135deg,var(--gold),#f7dc62);color:#172044;border-radius:14px;padding:14px 18px;font-weight:900;box-shadow:0 14px 28px rgba(217,168,23,.24)}
#login-error{display:block;color:var(--danger);font-weight:800;margin-top:12px}
.app{min-height:100vh;display:grid;grid-template-columns:270px 1fr}.sidebar{position:fixed;inset:0 auto 0 0;width:270px;background:var(--navy);color:#fff;padding:24px 18px;display:flex;flex-direction:column;gap:22px;overflow:auto}.side-brand{display:flex;gap:12px;align-items:center}.side-brand img{width:60px;height:60px;border-radius:50%;object-fit:cover}.side-brand strong,.side-brand span{display:block}.side-brand span{font-size:12px;color:#ffe271;font-weight:800}
nav{display:grid;gap:8px}.nav{border:0;background:transparent;color:#d7e6ff;text-align:left;border-radius:14px;padding:15px 16px;font-weight:900}.nav.active,.nav:hover{background:rgba(255,255,255,.13);color:#fff;box-shadow:inset 4px 0 0 var(--gold)}
.user-box{margin-top:auto;display:flex;gap:11px;align-items:center;border-top:1px solid rgba(255,255,255,.16);padding-top:18px}.user-box b{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--gold);color:var(--navy)}.user-box strong,.user-box span{display:block}.user-box span{font-size:11px;color:#c5d8f6;text-transform:uppercase;font-weight:800}.logout{border:1px solid rgba(255,255,255,.18);background:#fff;color:var(--navy);border-radius:14px;padding:13px;font-weight:900}
main{grid-column:2;padding:0 42px 60px}.topbar{height:120px;display:flex;align-items:center;justify-content:space-between}.topbar span,.section-title span{font-size:11px;font-weight:900;color:#826400;letter-spacing:.12em}.topbar h1,.section-title h2{margin:5px 0 0;color:var(--navy);font-size:34px;line-height:1}.mobile-menu{display:none}
.view{display:none}.view.active{display:block}
.hero{border-radius:28px;padding:36px;background:linear-gradient(135deg,var(--navy),#174987 55%,#14613c);color:#fff;box-shadow:var(--shadow);margin-bottom:22px}.hero span{font-size:12px;font-weight:900;color:#ffe271;letter-spacing:.12em}.hero h2{font-size:48px;max-width:800px;line-height:1;margin:12px 0}.hero p{max-width:790px;color:#dcecff;line-height:1.55;margin:0}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}.quick-card{text-align:left;border:1px solid var(--line);border-left:7px solid var(--gold-2);background:var(--paper);border-radius:22px;padding:22px;box-shadow:var(--shadow)}.quick-card.highlight{background:linear-gradient(180deg,#eaffef,#fffdf8);border-left-color:var(--green)}.quick-card span{font-size:11px;font-weight:900;color:#2d6d43;text-transform:uppercase}.quick-card strong{display:block;font-size:23px;line-height:1.05;margin:12px 0 8px;color:var(--navy)}.quick-card p{color:var(--muted);font-size:13px;line-height:1.45;margin:0}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 10px 28px rgba(13,53,104,.07);margin-bottom:20px}.section-title{margin-bottom:18px}.section-title.compact{margin-bottom:12px}.summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.summary-grid article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.summary-grid strong{display:block;color:var(--navy);font-size:34px}.summary-grid span{font-size:11px;font-weight:900;color:#826400;text-transform:uppercase}
.gina-shell{display:grid;grid-template-columns:360px 1fr;gap:18px}.gina-list,.gina-compose{background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:var(--shadow)}.student-item{width:100%;border:1px solid var(--line);background:#fff;text-align:left;border-radius:16px;padding:13px;margin-top:10px}.student-item.active{border-color:var(--green);background:#effaf2}.student-item strong,.student-item span{display:block}.student-item span{font-size:12px;color:var(--muted);margin-top:4px}.gina-head{display:flex;gap:13px;align-items:center;background:linear-gradient(135deg,#eaffef,#fff8d2);border:1px solid var(--line);border-radius:18px;padding:14px;margin-bottom:16px}.gina-avatar{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:#24d366;color:#fff;font-size:28px;font-weight:900}.gina-head strong,.gina-head span{display:block}.gina-head strong{font-size:22px;color:var(--navy)}.gina-head span{color:var(--muted);font-size:13px}.message-tools,.filters{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}.message-tools{grid-template-columns:1fr 1fr;margin-bottom:12px}.message-box{min-height:210px}.actions{display:flex;gap:10px;justify-content:flex-end}.secondary,.whatsapp{border:1px solid var(--line);border-radius:14px;padding:13px 16px;font-weight:900;background:#fff;color:var(--navy)}.whatsapp{background:#24d366;border-color:#24d366;color:#fff}
.split{display:grid;grid-template-columns:430px 1fr;gap:24px}.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.card-list,.teacher-grid,.subject-grid{display:grid;gap:12px}.plan-card,.teacher-card,.subject-card{background:#fff;border:1px solid var(--line);border-left:6px solid var(--gold-2);border-radius:18px;padding:16px}.plan-card strong,.teacher-card strong,.subject-card strong{display:block;color:var(--navy);font-size:20px}.plan-card span,.teacher-card span,.subject-card span{font-size:12px;color:var(--muted);line-height:1.45}.subject-grid,.teacher-grid{grid-template-columns:repeat(3,1fr)}
.gradebook{display:grid;gap:8px;margin:16px 0}.grade-row{display:grid;grid-template-columns:1.5fr 90px 90px 130px;gap:8px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px}.grade-row.header{background:#eef3fb;font-size:11px;font-weight:900;text-transform:uppercase}.grade-row input{padding:9px}
.toast{position:fixed;right:22px;bottom:22px;max-width:360px;background:var(--navy);color:#fff;border-radius:16px;padding:14px 18px;box-shadow:var(--shadow);opacity:0;transform:translateY(20px);transition:.25s;font-weight:800}.toast.show{opacity:1;transform:translateY(0)}
.rectoria-only{display:none}.role-rectoria .rectoria-only{display:block}
@media(max-width:1000px){.app{display:block}.sidebar{transform:translateX(-100%);transition:.25s;z-index:10}.sidebar.open{transform:translateX(0)}main{padding:0 18px 40px}.mobile-menu{display:block;border:1px solid var(--line);background:#fff;border-radius:13px;padding:11px 14px;font-weight:900}.topbar{height:88px}.hero h2{font-size:34px}.quick-grid,.summary-grid,.gina-shell,.split,.subject-grid,.teacher-grid{grid-template-columns:1fr}.message-tools,.filters,.grade-row{grid-template-columns:1fr}.grade-row.header{display:none}.actions{display:grid}.actions button{width:100%}}