:root{
  --bg:#0c0c11;
  --bg-soft:#131319;
  --card:#17171f;
  --card-2:#1d1d27;
  --border:#28283355;
  --border-solid:#2c2c38;
  --text:#f2f2f5;
  --text-dim:#9a9aa8;
  --text-faint:#6b6b78;
  --pink:#ec4899;
  --orange:#f97316;
  --grad: linear-gradient(100deg, var(--pink), var(--orange));
  --green:#22c55e;
  --red:#ef4444;
  --yellow:#eab308;
  --radius:14px;
  --radius-sm:9px;
  font-family: 'Segoe UI', Roboto, -apple-system, sans-serif;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4{font-family:inherit;font-weight:700;margin:0 0 4px;}
p{margin:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-thumb{background:#3a3a46;border-radius:8px;}
.hidden{display:none !important;}

/* ===== LOGIN ===== */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:var(--bg);}
.login-box{width:100%;max-width:380px;background:var(--card);border:1px solid var(--border-solid);border-radius:var(--radius);padding:32px 28px;}
.login-title{font-size:19px;font-weight:700;margin-bottom:24px;text-align:center;letter-spacing:.01em;}
.role-tabs{display:flex;background:var(--bg-soft);border-radius:999px;padding:4px;margin-bottom:22px;}
.role-tabs a{flex:1;text-align:center;color:var(--text-dim);padding:10px;border-radius:999px;font-weight:600;font-size:14px;}
.role-tabs a.active{background:var(--grad);color:#1a0d08;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:12px;color:var(--text-dim);margin-bottom:6px;font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg-soft);border:1px solid var(--border-solid);color:var(--text);
  padding:12px 14px;border-radius:var(--radius-sm);font-size:15px;outline:none;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--pink);}
.btn-grad{width:100%;border:none;padding:13px;border-radius:999px;background:var(--grad);color:#1a0d08;font-weight:700;font-size:15px;margin-top:6px;}
.login-error{color:var(--red);font-size:13px;margin-top:14px;text-align:center;}
.login-hint{font-size:11px;color:var(--text-faint);text-align:center;margin-top:16px;line-height:1.6;}

/* ===== APP SHELL ===== */
.app{display:flex;min-height:100vh;}
.sidebar{width:220px;flex-shrink:0;background:var(--bg-soft);border-right:1px solid var(--border-solid);padding:20px 14px;display:flex;flex-direction:column;gap:3px;}
.sidebar .brand-text{font-weight:700;font-size:16px;padding:4px 10px 4px;}
.sidebar .role-badge{font-size:11px;color:var(--text-dim);padding:0 10px 18px;}
.nav-btn{display:block;padding:10px 12px;border-radius:var(--radius-sm);color:var(--text-dim);text-align:left;font-size:14px;font-weight:600;border:none;background:transparent;width:100%;}
.nav-btn:hover{background:var(--card-2);color:var(--text);}
.nav-btn.active{background:var(--card-2);color:var(--text);box-shadow:inset 3px 0 0 var(--pink);}
.sidebar-footer{margin-top:auto;padding-top:14px;border-top:1px solid var(--border);}
.logout-link{display:block;text-align:center;padding:10px;border-radius:var(--radius-sm);border:1px solid var(--border-solid);color:var(--text-dim);font-size:13px;font-weight:600;}
.logout-link:hover{border-color:var(--red);color:var(--red);}

.main{flex:1;padding:26px 30px 40px;overflow-x:hidden;max-width:1180px;}
.page-title{font-size:22px;margin-bottom:2px;font-weight:700;}
.page-sub{color:var(--text-dim);font-size:13px;margin-bottom:20px;}

/* Slim mobile header — title + logout only, no branding block */
.mobile-topbar{display:none;position:sticky;top:0;z-index:20;background:var(--bg-soft);border-bottom:1px solid var(--border-solid);padding:10px 14px;align-items:center;justify-content:space-between;}
.mobile-topbar .m-title{font-size:14px;font-weight:700;}
.mobile-topbar .logout-link{padding:6px 12px;font-size:11px;width:auto;}



/* ===== CARDS / GRID ===== */
.grid{display:grid;gap:14px;}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media (max-width:900px){.grid-4{grid-template-columns:repeat(2,1fr);} .grid-3{grid-template-columns:repeat(2,1fr);} .grid-2{grid-template-columns:1fr;}}
.card{background:var(--card);border:1px solid var(--border-solid);border-radius:var(--radius);padding:18px;}
.stat-label{font-size:12px;color:var(--text-dim);font-weight:600;margin-bottom:8px;}
.stat-val{font-size:24px;font-weight:700;}
.stat-val.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}

.section-head{display:flex;align-items:center;justify-content:space-between;margin:24px 0 12px;flex-wrap:wrap;gap:10px;}
.section-head h3{font-size:15px;font-weight:700;}
.btn{display:inline-block;border-radius:999px;padding:9px 16px;font-weight:700;font-size:13px;background:var(--card-2);color:var(--text);border:1px solid var(--border-solid);}
.btn:hover{border-color:#444;}
.btn-primary{background:var(--grad);color:#1a0d08;border:none;}
.btn-danger{background:transparent;color:var(--red);border:1px solid #ef444455;}
.btn-danger:hover{background:#ef444422;}
.btn-sm{padding:6px 12px;font-size:12px;}
.btn-ghost{background:transparent;border:1px solid var(--border-solid);color:var(--text-dim);}

table{width:100%;border-collapse:collapse;font-size:13px;}
thead th{text-align:left;color:var(--text-dim);font-weight:700;font-size:11px;text-transform:uppercase;letter-spacing:.03em;padding:0 10px 10px;border-bottom:1px solid var(--border-solid);}
tbody td{padding:11px 10px;border-bottom:1px solid var(--border);}
tbody tr:last-child td{border-bottom:none;}
.table-wrap{overflow-x:auto;background:var(--card);border:1px solid var(--border-solid);border-radius:var(--radius);}
.table-wrap table{min-width:640px;}

.pill{display:inline-block;padding:4px 10px;border-radius:999px;font-size:11px;font-weight:700;}
.pill-green{background:#22c55e22;color:var(--green);}
.pill-red{background:#ef444422;color:var(--red);}
.pill-yellow{background:#eab30822;color:var(--yellow);}
.pill-gray{background:#ffffff11;color:var(--text-dim);}
.pill-blue{background:#4aa3ff22;color:#4aa3ff;}

.mono{font-family:'Consolas',monospace;font-size:12px;color:var(--text-dim);}

/* ===== MODAL (pure CSS/JS toggle, forms POST normally) ===== */
.modal-backdrop{position:fixed;inset:0;background:#000000aa;display:none;align-items:flex-end;justify-content:center;z-index:100;}
.modal-backdrop.open{display:flex;}
@media(min-width:640px){.modal-backdrop{align-items:center;}}
.modal{background:var(--card);border:1px solid var(--border-solid);border-radius:18px 18px 0 0;width:100%;max-width:460px;max-height:90vh;overflow-y:auto;padding:22px;}
@media(min-width:640px){.modal{border-radius:var(--radius);}}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;}
.modal-close{background:none;border:none;color:var(--text-dim);font-size:18px;padding:4px 8px;}
.form-row{display:flex;gap:10px;flex-wrap:wrap;}
.form-row .field{flex:1;min-width:140px;}

.empty-state{text-align:center;padding:36px 20px;color:var(--text-dim);font-size:13px;}

.student-card{background:var(--card);border:1px solid var(--border-solid);border-radius:var(--radius);padding:16px;margin-bottom:12px;}
.student-card.alert{border-color:#ef444488;background:linear-gradient(180deg,#ef444414,var(--card) 40%);}
.student-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;}
.student-name{font-size:15px;font-weight:700;}
.student-id{font-size:10.5px;color:var(--text-faint);font-family:monospace;}
.student-meta{display:flex;flex-wrap:wrap;gap:7px 18px;margin-top:10px;font-size:12.5px;color:var(--text-dim);}
.student-meta b{color:var(--text);}
.student-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

.day-grid{display:grid;grid-template-columns:64px repeat(7,1fr);gap:3px;font-size:11px;}
.day-grid .hdr{text-align:center;color:var(--text-dim);font-weight:700;padding:6px 2px;}
.day-grid .hr-label{color:var(--text-faint);padding:6px 2px;text-align:right;}
.slot{background:var(--bg-soft);border:1px solid var(--border);border-radius:5px;height:22px;}
.slot.on{background:var(--grad);border-color:transparent;}
.slot.taken{background:#ffffff22;}
button.slot{width:100%;padding:0;}

.legend{display:flex;gap:16px;font-size:12px;color:var(--text-dim);margin-top:10px;flex-wrap:wrap;}
.legend .sw{width:12px;height:12px;border-radius:3px;display:inline-block;margin-right:5px;vertical-align:-2px;}

/* --- Calendar grafic (grid interactiv, sloturi de 30 min) --- */
.week-nav{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap;}
.week-nav .week-label{font-weight:700;font-size:13px;}
.graph-grid{display:grid;grid-template-columns:56px repeat(7,1fr);gap:3px;font-size:10.5px;}
.graph-grid .g-hdr{text-align:center;color:var(--text-dim);font-weight:700;padding:6px 2px;line-height:1.3;}
.graph-grid .g-hdr b{display:block;font-size:11px;color:var(--text);}
.graph-grid .g-hr{color:var(--text-faint);padding:4px 2px;text-align:right;font-size:10px;align-self:center;}
.g-cell{
  min-height:30px;border-radius:5px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;text-align:center;
  padding:2px;font-size:9.5px;line-height:1.15;font-weight:700;
  color:#0a0a0a;overflow:hidden;word-break:break-word;
}
button.g-cell{width:100%;cursor:pointer;}
.g-free{background:#242429;border-color:#3a3a42;color:var(--text-dim);font-weight:400;}
.g-free:hover{background:#33333a;border-color:#55555f;color:#fff;}
.g-booked{background:#ef444455;border-color:var(--red);color:#ffe4e4;cursor:pointer;}
.g-booked:hover{background:#ef4444;color:#fff;}
.g-blocked{background:#ffffff14;border-color:var(--border);color:var(--text-faint);cursor:pointer;}
.g-trial{background:#eab30855;border-color:var(--yellow);color:#3a2c00;cursor:pointer;}
.g-trial:hover{background:var(--yellow);color:#3a2c00;}
.g-past-done{background:#22c55e33;border-color:var(--green);color:var(--green);}
.g-past-absent{background:#ef444433;border-color:var(--red);color:#ffb4b4;}
.g-past-empty{background:transparent;border:1px dashed var(--border);color:var(--text-faint);}
@media (max-width: 880px){
  .graph-grid{grid-template-columns:44px repeat(7,minmax(38px,1fr));font-size:9px;overflow-x:auto;}
  .g-cell{min-height:26px;}
}

.month-nav{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.month-nav .btn{padding:7px 14px;}
.month-nav .m-label{font-weight:700;font-size:14px;min-width:150px;text-align:center;}

.alert-box{margin-top:12px;background:#ef444422;border:1px solid #ef444455;border-radius:10px;padding:10px 12px;}
.alert-box b{color:var(--red);font-size:12.5px;}
.alert-box textarea{width:100%;background:var(--bg-soft);border:1px solid var(--border-solid);border-radius:8px;color:var(--text);padding:8px;font-size:13px;margin-top:8px;}

canvas{max-width:100%;}

@media (max-width:880px){
  .sidebar{display:none;}
  .mobile-topbar{display:flex;}
  .main{padding:16px 14px 40px;}
  .day-grid{grid-template-columns:40px repeat(7,1fr);}
}
@media print{
  .sidebar,.mobile-topbar,.mobile-nav-drawer,.mobile-nav-backdrop,.section-head .btn,.no-print{display:none !important;}
  body{background:#fff;color:#000;}
  .card,.table-wrap{border-color:#ccc;background:#fff;}
}

/* ===== Rânduri program (zi + oră), folosite la elevi ===== */
.schedule-row-input{display:flex;gap:8px;align-items:center;margin-bottom:8px;flex-wrap:wrap;}
.schedule-row-input select{flex:1;min-width:90px;background:var(--bg-soft);border:1px solid var(--border-solid);color:var(--text);padding:9px 10px;border-radius:var(--radius-sm);font-size:13px;}
.schedule-row-input select[name="schedule_minute[]"]{flex:0 0 72px;min-width:72px;}
.schedule-row-input select[name="schedule_room[]"]{flex:1.2;min-width:110px;}
.schedule-row-input .btn{flex:0 0 auto;}

/* ===== Meniu mobil tip sertar (hamburger) ===== */
.mobile-burger{display:none;width:38px;height:38px;border-radius:10px;border:1px solid var(--border-solid);background:var(--card-2);flex-direction:column;align-items:center;justify-content:center;gap:4px;}
.mobile-burger span{width:16px;height:2px;background:var(--text);transition:transform .25s, opacity .25s;}
.mobile-burger.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.mobile-burger.open span:nth-child(2){opacity:0;}
.mobile-burger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-nav-drawer{position:fixed;top:0;right:0;height:100vh;width:min(78vw,300px);background:var(--bg-soft);border-left:1px solid var(--border-solid);z-index:60;padding:70px 16px 20px;transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;}
.mobile-nav-drawer.open{transform:translateX(0);}
.mobile-nav-drawer .nav-btn{font-size:14px;padding:12px;margin-bottom:4px;}
.mobile-nav-backdrop{display:none;}
.mobile-nav-drawer.open ~ .mobile-nav-backdrop{display:block;position:fixed;inset:0;background:#000000aa;z-index:50;}

@media (max-width:880px){
  .mobile-burger{display:flex;}
}