/* Panel admin FoodTech Academy */
:root{--teal:#12b5b0;--azul:#1479ff;--navy:#0b2853;--verde:#27c07a;--gris:#f1f4f8;--linea:#e6eaf0}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Poppins',system-ui,Segoe UI,sans-serif;background:var(--gris);color:#3a3f4a}
a{text-decoration:none;color:inherit}

.layout{display:flex;min-height:100vh}

/* Sidebar */
.sidebar{width:260px;background:var(--navy);color:#cdd6e2;flex:none;position:fixed;inset:0 auto 0 0;
  display:flex;flex-direction:column;transition:.3s;z-index:40}
.sidebar .brand{padding:22px 24px;font-weight:800;font-size:1.25rem;color:#fff;letter-spacing:.5px;
  display:flex;align-items:center;gap:10px;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar .brand b{color:var(--teal)}
.sidebar .brand .mk{width:34px;height:34px;border-radius:8px;transform:rotate(45deg);
  background:conic-gradient(from 45deg,var(--azul),var(--teal),var(--verde));
  display:flex;align-items:center;justify-content:center}
.sidebar .brand .mk i{transform:rotate(-45deg);color:#fff}
.sidebar .rol{padding:12px 24px;font-size:.75rem;text-transform:uppercase;letter-spacing:1px;color:#7b89a1}
.menu{list-style:none;flex:1;padding:6px 12px}
.menu a{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:10px;margin-bottom:3px;
  font-size:.92rem;color:#cdd6e2;transition:.2s}
.menu a i{width:20px;text-align:center}
.menu a:hover{background:rgba(255,255,255,.07);color:#fff}
.menu a.activo{background:var(--teal);color:#fff}
.sidebar .salir{padding:16px 24px;border-top:1px solid rgba(255,255,255,.08)}
.sidebar .salir a{color:#ff9d9d;font-size:.9rem;display:flex;gap:10px;align-items:center}

/* Contenido */
.main{margin-left:260px;flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{background:#fff;padding:16px 28px;display:flex;align-items:center;justify-content:space-between;
  box-shadow:0 1px 8px rgba(0,0,0,.04);position:sticky;top:0;z-index:30}
.topbar .hamb{display:none;background:none;border:none;font-size:1.4rem;color:var(--navy);cursor:pointer}
.topbar .user{display:flex;align-items:center;gap:12px;font-size:.9rem}
.topbar .user .av{width:38px;height:38px;border-radius:50%;background:var(--teal);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700}
.content{padding:28px;flex:1}
.page-title{font-size:1.5rem;color:var(--navy);font-weight:700;margin-bottom:22px}

/* Tarjetas KPI */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px;margin-bottom:26px}
.kpi{background:#fff;border-radius:16px;padding:22px;box-shadow:0 8px 24px rgba(11,40,83,.06);
  display:flex;align-items:center;gap:16px}
.kpi .ico{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;color:#fff;flex:none}
.kpi .n{font-size:1.7rem;font-weight:800;color:var(--navy);line-height:1}
.kpi .l{font-size:.85rem;color:#8a929c}

/* Panel / card */
.card{background:#fff;border-radius:16px;box-shadow:0 8px 24px rgba(11,40,83,.06);padding:24px;margin-bottom:24px}
.card h3{color:var(--navy);margin-bottom:18px;font-size:1.1rem}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap;gap:12px}

/* Tabla */
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--linea);font-size:.9rem}
th{color:#8a929c;font-weight:600;text-transform:uppercase;font-size:.75rem;letter-spacing:.5px}
tbody tr:hover{background:#fafbfc}
.badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:.75rem;font-weight:600}
.badge.admin{background:#fee2e2;color:#c0392b}
.badge.profesor{background:#dcecff;color:#1479ff}
.badge.alumno{background:#d7f5ec;color:#0e9a95}
.badge.publicado{background:#d7f5ec;color:#0e9a95}
.badge.borrador{background:#fff2d6;color:#b7791f}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:8px;border:none;cursor:pointer;font-family:inherit;
  font-weight:600;font-size:.88rem;padding:10px 18px;border-radius:10px;transition:.2s}
.btn-p{background:var(--azul);color:#fff}.btn-p:hover{background:#0f62d6}
.btn-t{background:var(--teal);color:#fff}.btn-t:hover{filter:brightness(.94)}
.btn-v{background:var(--verde);color:#fff}.btn-v:hover{filter:brightness(.94)}
.btn-d{background:#fee2e2;color:#c0392b}.btn-d:hover{background:#fcd0d0}
.btn-g{background:#eef1f5;color:#3a3f4a}.btn-g:hover{background:#e3e8ee}
.btn-sm{padding:7px 12px;font-size:.8rem;border-radius:8px}

/* Formularios */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.fg{margin-bottom:16px}
.fg label{display:block;font-weight:600;margin-bottom:7px;color:var(--navy);font-size:.88rem}
.fg input,.fg select,.fg textarea{width:100%;padding:11px 14px;border:1.5px solid var(--linea);
  border-radius:10px;font-family:inherit;font-size:.9rem;background:#fff}
.fg textarea{resize:vertical;min-height:90px}
.fg input:focus,.fg select:focus,.fg textarea:focus{outline:none;border-color:var(--azul)}
.help{font-size:.78rem;color:#8a929c;margin-top:5px}

/* Alertas */
.alert{padding:13px 18px;border-radius:12px;margin-bottom:18px;font-size:.9rem;font-weight:500}
.alert-ok{background:#d7f5ec;color:#0e6b57}
.alert-err{background:#fee2e2;color:#c0392b}

/* Login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(120deg,var(--azul),var(--teal));padding:20px}
.login-box{background:#fff;border-radius:22px;box-shadow:0 30px 60px rgba(0,0,0,.25);
  width:100%;max-width:420px;padding:40px 34px}
.login-box .brand{text-align:center;font-weight:800;font-size:1.6rem;color:var(--navy);margin-bottom:6px}
.login-box .brand b{color:var(--teal)}
.login-box .sub{text-align:center;color:#8a929c;margin-bottom:26px;font-size:.9rem}

/* Player de video */
.video-box{position:relative;padding-top:56.25%;border-radius:14px;overflow:hidden;background:#000;margin-bottom:18px}
.video-box iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.lecc-list{list-style:none}
.lecc-list li{padding:12px 14px;border:1px solid var(--linea);border-radius:10px;margin-bottom:8px;
  display:flex;justify-content:space-between;align-items:center;cursor:pointer}
.lecc-list li:hover,.lecc-list li.activo{border-color:var(--teal);background:#f0fbfa}

/* Examen */
.pregunta{border:1px solid var(--linea);border-radius:12px;padding:18px;margin-bottom:16px}
.pregunta .op{display:flex;align-items:center;gap:10px;padding:8px 0}
.grid2{display:grid;grid-template-columns:2fr 1fr;gap:24px;align-items:start}

@media(max-width:900px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.abierta{transform:translateX(0)}
  .main{margin-left:0}
  .topbar .hamb{display:block}
  .form-row,.grid2{grid-template-columns:1fr}
}

/* ==================================================================
   MÓDULO ACADÉMICO v2 — tabs, semanas, asistencia, material,
   comunicados, notas y mensajería
   ================================================================== */
.tabs{display:flex;gap:4px;border-bottom:2px solid var(--linea);margin-bottom:22px;flex-wrap:wrap}
.tabs a{padding:11px 18px;font-weight:600;font-size:.9rem;color:#8a929c;border-bottom:3px solid transparent;margin-bottom:-2px}
.tabs a:hover{color:var(--navy)}
.tabs a.activo{color:var(--azul);border-color:var(--azul)}
.tabs a i{margin-right:7px}

.sem-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.sem-nav a{padding:8px 15px;border-radius:22px;background:#eef1f5;color:#55606e;font-size:.85rem;font-weight:600}
.sem-nav a:hover{background:#e3e8ee}
.sem-nav a.activo{background:var(--navy);color:#fff}

.asis-badge{padding:4px 12px;border-radius:20px;font-size:.75rem;font-weight:600}
.asis-presente{background:#d7f5ec;color:#0e9a95}
.asis-ausente{background:#fee2e2;color:#c0392b}
.asis-tarde{background:#fff2d6;color:#b7791f}
.asis-justificado{background:#dcecff;color:#1479ff}

.mat-item{display:flex;align-items:center;gap:14px;border:1px solid var(--linea);border-radius:12px;padding:14px 16px;margin-bottom:10px}
.mat-item .fi{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:#fff;flex:none}
.fi.pdf{background:#e5533c}.fi.doc{background:#1e6fd6}.fi.ppt{background:#e07b39}
.fi.xls{background:#1f9d55}.fi.zip{background:#7b52c9}.fi.img{background:#12b5b0}.fi.otro{background:#8a929c}
.mat-item .mt{flex:1;min-width:0}
.mat-item .mt b{color:var(--navy);display:block}
.mat-item .mt small{color:#8a929c;display:block}

.com-item{border-left:4px solid var(--teal);background:#f7fbfd;border-radius:10px;padding:16px 18px;margin-bottom:12px}
.com-item h4{color:var(--navy);margin-bottom:6px}
.com-meta{font-size:.78rem;color:#8a929c;margin-bottom:8px}
.com-item p{white-space:pre-wrap;font-size:.92rem;color:#55606e}

.gauge{--v:0;width:150px;height:150px;border-radius:50%;flex:none;
  background:conic-gradient(var(--azul) calc(var(--v)*1%),#e8edf3 0);
  display:flex;align-items:center;justify-content:center}
.gauge.ok{background:conic-gradient(var(--verde) calc(var(--v)*1%),#e8edf3 0)}
.gauge.bad{background:conic-gradient(#e5533c calc(var(--v)*1%),#e8edf3 0)}
.gauge .in{width:114px;height:114px;border-radius:50%;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center}
.gauge .in b{font-size:2.1rem;color:var(--navy);line-height:1}
.gauge .in span{font-size:.72rem;color:#8a929c}

.chat{display:grid;grid-template-columns:300px 1fr;border:1px solid var(--linea);border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 10px 30px rgba(11,40,83,.08)}
.chat-side{border-right:1px solid var(--linea);overflow-y:auto;display:flex;flex-direction:column}
.chat-side .tit{padding:16px 18px;font-weight:700;color:var(--navy);border-bottom:1px solid var(--linea);font-size:.92rem;display:flex;gap:8px;align-items:center;position:sticky;top:0;background:#fff;z-index:2}
.chat-side a{display:flex;gap:12px;align-items:center;padding:13px 16px;border-bottom:1px solid #f1f4f8;transition:.15s}
.chat-side a:hover{background:#f7fafc}
.chat-side a.activo{background:#eefaf9;box-shadow:inset 3px 0 0 var(--teal)}
.chat-side .av,.chat-top .av{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--azul),var(--teal));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex:none}
.chat-side .nm{font-weight:600;color:var(--navy);font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}
.chat-side .rl{font-size:.74rem;color:#8a929c}
.chat-side .pill,.menu a .pill{margin-left:auto;background:#ff5b5b;color:#fff;font-size:.68rem;font-weight:700;border-radius:20px;padding:2px 8px;min-width:20px;text-align:center}
.chat-main{display:flex;flex-direction:column;min-width:0;min-height:0}
.chat-top{display:flex;align-items:center;gap:12px;padding:13px 18px;border-bottom:1px solid var(--linea);background:#fff}
.chat-top .st{font-size:.72rem;color:var(--verde);display:flex;align-items:center;gap:5px}
.chat-top .st i{font-size:.5rem}
.chat-msgs{flex:1;padding:22px 24px;display:flex;flex-direction:column;gap:7px;overflow-y:auto;height:auto;min-height:240px;max-height:calc(100vh - 330px);
  background:#e9eff5;background-image:radial-gradient(rgba(18,181,176,.07) 1.4px,transparent 1.4px);background-size:24px 24px}
.burb{width:fit-content;max-width:74%;padding:9px 13px 6px;border-radius:16px;font-size:.9rem;line-height:1.42;
  white-space:pre-wrap;word-break:break-word;box-shadow:0 1px 2px rgba(11,40,83,.10);animation:burbIn .18s ease}
.burb.mio{align-self:flex-end;background:linear-gradient(135deg,#2b8bff,#1479ff);color:#fff;border-bottom-right-radius:5px}
.burb.suyo{align-self:flex-start;background:#fff;color:#2a3242;border-bottom-left-radius:5px}
.burb small{display:block;text-align:right;font-size:.63rem;opacity:.75;margin-top:2px}
.burb.mio small{color:#e0edff}
@keyframes burbIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.chat-form{display:flex;gap:10px;padding:13px 16px;border-top:1px solid var(--linea);background:#fff}
.chat-form input{flex:1;padding:12px 18px;border:1.5px solid var(--linea);border-radius:24px;font-family:inherit;font-size:.92rem;transition:.15s}
.chat-form input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(18,181,176,.12)}
.chat-form button{border-radius:50%;width:46px;height:46px;padding:0;justify-content:center;flex:none}
.chat-empty{flex:1;display:flex;align-items:center;justify-content:center;color:#8a929c;text-align:center;padding:30px;background:#e9eff5;min-height:calc(100vh - 330px)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}

/* Notificaciones tipo toast */
#toastWrap{position:fixed;top:18px;right:18px;z-index:9999;display:flex;flex-direction:column;gap:10px}
.toast{background:#fff;border-left:4px solid var(--teal);box-shadow:0 12px 34px rgba(11,40,83,.2);
  border-radius:12px;padding:13px 16px 13px 14px;display:flex;gap:12px;align-items:center;min-width:270px;max-width:340px;
  animation:toastIn .3s ease;cursor:pointer}
.toast .ic{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--azul),var(--teal));color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex:none}
.toast .tx b{color:var(--navy);font-size:.92rem;display:block}
.toast .tx span{color:#8a929c;font-size:.82rem}
@keyframes toastIn{from{opacity:0;transform:translateX(30px)}to{opacity:1;transform:none}}

@media(max-width:900px){.grid3{grid-template-columns:1fr}}
@media(max-width:700px){.chat{grid-template-columns:1fr}.chat-side{max-height:220px}}

/* --- Mensajería avanzada: buscador, escribiendo, leído, adjuntos --- */
.chat-search{padding:10px 14px;border-bottom:1px solid var(--linea);position:sticky;top:49px;background:#fff;z-index:1}
.chat-search input{width:100%;padding:9px 13px;border:1.5px solid var(--linea);border-radius:20px;font-size:.85rem;font-family:inherit}
.chat-search input:focus{outline:none;border-color:var(--teal)}
.burb .ck{margin-left:5px;font-size:.72rem;letter-spacing:-1px}
.burb.mio .ck.visto{color:#7fd4ff}
.typing{align-self:flex-start;background:#fff;border-radius:16px;padding:12px 16px;box-shadow:0 1px 2px rgba(11,40,83,.1);display:flex;gap:5px;width:fit-content}
.typing span{width:7px;height:7px;border-radius:50%;background:#9aa3ad;animation:blink 1.2s infinite}
.typing span:nth-child(2){animation-delay:.2s}
.typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}
.adj{display:flex;align-items:center;gap:10px;border-radius:10px;padding:8px 10px;margin-top:6px;text-decoration:none;background:rgba(255,255,255,.18)}
.burb.suyo .adj{background:#f1f4f8}
.adj .fi{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;flex:none;font-size:.9rem}
.adj .an{font-size:.82rem;font-weight:600;word-break:break-all}
.burb.mio .adj .an{color:#fff}
.burb.suyo .adj .an{color:var(--navy)}
.chat-form .clip{width:44px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--azul);cursor:pointer;flex:none;font-size:1.05rem}
.chat-form .clip:hover{background:#eef4ff}
.adj-chip{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--navy);background:#eef4ff;border-radius:20px;padding:5px 12px}