/* Ratificación de Matrícula — estilos */
:root{
  --p:#1f4e8c; --s:#f2a900;
  --bg:#f4f6f9; --card:#ffffff; --ink:#1c2430; --muted:#5f6b7a; --line:#e2e7ee;
  --ok:#1e8e4f; --warn:#c77700; --err:#c0392b; --info:#2a6fb0;
  --r:12px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:"Nunito Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--p)}
h1{font-size:1.55rem;margin:0 0 .4rem;font-weight:800;letter-spacing:-.01em}
h2{font-size:1.15rem;margin:1.6rem 0 .6rem;font-weight:800}
h3{font-size:1rem;margin:1rem 0 .4rem}
code{background:#eef1f5;padding:.1em .35em;border-radius:5px;font-size:.9em}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 16px}
.main{flex:1;padding-top:22px;padding-bottom:40px}
.muted{color:var(--muted)}
.small{font-size:.86rem}
.right{text-align:right}
.mt{margin-top:1rem}

/* barra superior */
.topbar{background:var(--p);color:#fff;box-shadow:0 1px 0 rgba(0,0,0,.08)}
.topbar-in{display:flex;align-items:center;gap:16px;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;flex:1;min-width:0}
.brand span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand img{height:38px;width:38px;object-fit:contain;background:#fff;border-radius:8px;padding:3px}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:#fff;text-decoration:none;padding:7px 12px;border-radius:8px;font-weight:600;opacity:.88}
.nav a:hover{background:rgba(255,255,255,.14);opacity:1}
.nav a.on{background:rgba(255,255,255,.2);opacity:1}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer}
@media (max-width:820px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:60px;background:var(--p);flex-direction:column;padding:8px 16px 14px;z-index:20}
  .menu-open .nav{display:flex}
  .topbar{position:relative}
}
.foot{text-align:center;color:var(--muted);font-size:.82rem;padding:18px 0 26px}
.foot a{color:inherit;font-weight:700;text-decoration:none}
.foot a:hover{text-decoration:underline}

/* tarjetas */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;margin-bottom:16px}
.card.narrow{max-width:440px;margin:30px auto}
.center-page .main{display:flex;align-items:flex-start;justify-content:center}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:820px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.g2,.g3,.g4{grid-template-columns:1fr}}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}

/* indicadores */
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;border-left:5px solid var(--line)}
.kpi b{display:block;font-size:1.9rem;line-height:1.1;font-weight:800}
.kpi span{color:var(--muted);font-size:.88rem;font-weight:600}
.kpi.ok{border-left-color:var(--ok)} .kpi.ok b{color:var(--ok)}
.kpi.warn{border-left-color:var(--warn)} .kpi.warn b{color:var(--warn)}
.kpi.err{border-left-color:var(--err)} .kpi.err b{color:var(--err)}
.kpi.pend{border-left-color:#8a96a6}
.bar{display:flex;height:14px;border-radius:7px;overflow:hidden;background:#e7ebf0;margin:10px 0 4px}
.bar i{display:block;height:100%}
.bar .ok{background:var(--ok)} .bar .warn{background:var(--warn)} .bar .err{background:var(--err)}

/* formularios */
.form{display:grid;gap:14px}
label{display:grid;gap:5px;font-weight:700;font-size:.9rem}
label.inline{display:flex;align-items:center;gap:8px;font-weight:600}
input,select,textarea{font:inherit;padding:10px 12px;border:1px solid #cdd5df;border-radius:9px;background:#fff;color:var(--ink);width:100%}
input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--p)}
input[type=color]{height:44px;padding:3px}
input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in srgb,var(--p) 40%,transparent);border-color:var(--p)}
textarea{min-height:90px;resize:vertical}
.hint{font-weight:400;color:var(--muted);font-size:.82rem}
fieldset{border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;margin:0}
legend{font-weight:800;padding:0 6px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--p);color:#fff;border:0;border-radius:9px;padding:10px 18px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{filter:brightness(1.08)}
.btn.sec{background:#fff;color:var(--p);border:1px solid color-mix(in srgb,var(--p) 45%,#fff)}
.btn.warn{background:var(--warn)} .btn.danger{background:var(--err)} .btn.ok{background:var(--ok)}
.btn.sm{padding:6px 11px;font-size:.85rem;border-radius:7px}
.btn.wa{background:#1fa855}
.btn.block{width:100%}
.btns{display:flex;gap:8px;flex-wrap:wrap}

/* tablas */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table{border-collapse:collapse;width:100%}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{background:#f7f9fb;font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}
tr:last-child td{border-bottom:0}
td.num,th.num{text-align:right}
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:.78rem;font-weight:800;white-space:nowrap}
.b-pendiente{background:#eceff3;color:#556}
.b-ratifica{background:#dff3e7;color:var(--ok)}
.b-en_duda{background:#fdefd8;color:var(--warn)}
.b-no_continua{background:#f9e1de;color:var(--err)}
.b-off{background:#eceff3;color:#778}

.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.filters select,.filters input{width:auto;min-width:130px}
.filters input[type=checkbox]{min-width:0}
.filters label.inline{font-size:.9rem}
.pager{display:flex;gap:6px;margin-top:12px;flex-wrap:wrap}

.alert{padding:11px 14px;border-radius:10px;margin-bottom:14px;font-weight:600}
.alert-ok{background:#e3f4ea;color:#14663a}
.alert-err{background:#fbe5e2;color:#962b1f}
.alert-warn{background:#fdf0db;color:#8a5300}
.alert-info{background:#e2edf8;color:#1d4f80}

/* ===== Formulario del padre (móvil primero) ===== */
.parent .main{max-width:560px}
.hero{background:var(--p);color:#fff;border-radius:var(--r);padding:22px 20px;margin-bottom:16px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-50px;top:-50px;width:130px;height:130px;border-radius:50%;background:var(--s);opacity:.3;z-index:0}
.hero h1,.hero p{z-index:1;padding-right:40px}
.hero h1{color:#fff;font-size:1.35rem;position:relative}
.hero p{margin:.3rem 0 0;opacity:.92;position:relative}
.student{display:flex;gap:12px;align-items:center}
.student .av{width:48px;height:48px;border-radius:50%;background:color-mix(in srgb,var(--p) 14%,#fff);color:var(--p);display:grid;place-items:center;font-weight:800;font-size:1.1rem;flex:none}
.student b{display:block;font-size:1.05rem}
.choice{display:grid;gap:10px}
.choice label{display:flex;align-items:center;gap:12px;border:2px solid var(--line);border-radius:12px;padding:14px;cursor:pointer;font-size:1rem;font-weight:700;background:#fff}
.choice label small{display:block;font-weight:400;color:var(--muted);font-size:.85rem}
.choice input{width:20px;height:20px}
.choice label:has(input:checked){border-color:var(--p);background:color-mix(in srgb,var(--p) 7%,#fff)}
.done-icon{width:64px;height:64px;border-radius:50%;background:var(--ok);color:#fff;display:grid;place-items:center;font-size:2rem;margin:0 auto 10px}
.code-big{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:1.4rem;font-weight:800;letter-spacing:.08em;text-align:center;background:#f3f5f8;border-radius:10px;padding:10px}

/* ===== QR ===== */
.qr-box{display:inline-block;background:#fff;padding:10px;border-radius:10px;border:1px solid var(--line)}
.qr-box img,.qr-box canvas{display:block}
.scanner{max-width:420px;margin:0 auto}
#lector{border-radius:12px;overflow:hidden;background:#000;min-height:260px}

/* ===== Impresión ===== */
.only-print{display:none}
@media print{
  .topbar,.no-print,.btn,.alert{display:none!important}
  .foot{padding:8px 0;font-size:.7rem}
  .only-print{display:block}
  body{background:#fff}
  .main{padding:0}
  .card{border:0;padding:0}
  .print-sheet{page-break-after:always}
}
.qr-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.qr-card{border:1px dashed #9aa6b4;border-radius:10px;padding:10px;text-align:center;font-size:.8rem;break-inside:avoid;background:#fff}
.qr-card .qr{display:flex;justify-content:center;margin:6px 0}
.qr-card b{display:block;font-size:.88rem;line-height:1.2}
@media (max-width:620px){.qr-grid{grid-template-columns:repeat(2,1fr)}}
@media print{.qr-grid{grid-template-columns:repeat(3,1fr)}}

.dir-card{width:340px;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#fff;margin:0 auto;text-align:center}
.dir-card .top{background:var(--p);color:#fff;padding:14px}
.dir-card .top img{height:52px;background:#fff;border-radius:8px;padding:4px}
.dir-card .body{padding:16px}
.dir-card .qr{display:flex;justify-content:center;margin:10px 0}