/* ========== Superprofe · Design System ========== */
:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-2: #f0f3f8;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e5e7eb;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: #dbeafe;
  --success: #16a34a;
  --success-soft: #dcfce7;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --warning: #d97706;
  --warning-soft: #fef3c7;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 8px rgba(15,23,42,.06);
  --shadow-lg: 0 10px 40px rgba(15,23,42,.10);
  --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}
[data-theme="dark"] {
  --bg: #0b1220;
  --surface: #111827;
  --surface-2: #1f2937;
  --text: #e5e7eb;
  --text-muted: #94a3b8;
  --border: #1f2937;
  --primary: #60a5fa;
  --primary-hover: #3b82f6;
  --primary-soft: #1e3a8a;
  --shadow: 0 2px 8px rgba(0,0,0,.4);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.5);
}

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

* { box-sizing: border-box; margin:0; padding:0; }
html, body { height:100%; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height:1.5; -webkit-font-smoothing:antialiased; }
a { color: var(--primary); text-decoration:none; }
a:hover { color: var(--primary-hover); }

/* ---------- Layout ---------- */
.sidebar {
  position: fixed; left:0; top:0; bottom:0; width:260px;
  background: var(--surface); border-right:1px solid var(--border);
  padding: 20px 12px; overflow-y:auto; z-index:20;
  transition: transform .25s ease;
}
.brand { display:flex; align-items:center; gap:12px; padding: 0 8px 20px; border-bottom:1px solid var(--border); margin-bottom:12px; }
.brand-logo { width:44px; height:44px; border-radius:10px; object-fit:cover; }
.brand-logo-placeholder { background: linear-gradient(135deg,#2563eb,#7c3aed); color:#fff; display:flex; align-items:center; justify-content:center; font-weight:800; font-size:22px; }
.brand-title { font-weight:700; font-size:15px; }
.brand-sub { font-size:11px; color:var(--text-muted); text-transform:uppercase; letter-spacing:.05em; }
.menu { display:flex; flex-direction:column; gap:2px; }
.menu-item { display:flex; align-items:center; gap:12px; padding:10px 12px; border-radius: var(--radius-sm);
  color: var(--text); font-size:14px; font-weight:500; transition: background .15s; }
.menu-item i { width:18px; height:18px; }
.menu-item:hover { background: var(--surface-2); }
.menu-item.active { background: var(--primary-soft); color: var(--primary); font-weight:600; }
[data-theme="dark"] .menu-item.active { background: var(--surface-2); color: var(--primary); }

.main { margin-left:260px; min-height:100vh; display:flex; flex-direction:column; }
.main-guest { margin-left:0; }
.topbar { display:flex; align-items:center; gap:16px; padding:14px 24px; background: var(--surface);
  border-bottom:1px solid var(--border); position:sticky; top:0; z-index:10; }
.topbar-title { font-size:18px; font-weight:700; flex:1; }
.topbar-actions { display:flex; align-items:center; gap:14px; }
.icon-btn { border:none; background: transparent; padding:8px; border-radius:8px; cursor:pointer; color: var(--text); }
.icon-btn:hover { background: var(--surface-2); }
.menu-toggle { display:none; }
.theme-icon-light { display:none; }
[data-theme="dark"] .theme-icon-dark { display:none; }
[data-theme="dark"] .theme-icon-light { display:inline-block; }

.role-switch select { padding:6px 10px; border-radius:8px; border:1px solid var(--border); background:var(--surface); color:var(--text); font-size:13px; }
.role-badge { padding:4px 10px; border-radius:999px; background:var(--primary-soft); color:var(--primary); font-size:12px; font-weight:600; }

.user-chip { display:flex; align-items:center; gap:10px; }
.user-avatar { width:36px; height:36px; border-radius:50%; background:var(--primary); color:#fff; display:flex; align-items:center; justify-content:center; font-weight:700; }
.user-name { font-size:13px; font-weight:600; line-height:1.1; }
.user-logout { font-size:11px; color: var(--text-muted); }

.content { padding: 28px; max-width: 1400px; width:100%; margin:0 auto; }

/* ---------- Cards / Tables ---------- */
.card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:20px; box-shadow:var(--shadow); }
.card + .card { margin-top: 20px; }
.card-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; gap:12px; flex-wrap:wrap; }
.card-title { font-size:16px; font-weight:700; }
.grid { display:grid; gap:16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

table { width:100%; border-collapse: collapse; font-size:14px; }
table th, table td { text-align:left; padding: 10px 12px; border-bottom:1px solid var(--border); }
table th { font-weight:600; color:var(--text-muted); background: var(--surface-2); font-size:12px; text-transform:uppercase; letter-spacing:.03em; }
table tr:hover td { background: var(--surface-2); }
.table-wrap { overflow-x:auto; }

/* ---------- Forms (inputs redondeados) ---------- */
.form-group { margin-bottom:14px; }
.form-group label { display:block; font-size:13px; font-weight:500; margin-bottom:6px; color:var(--text); }

body input[type=text],
body input[type=email],
body input[type=password],
body input[type=number],
body input[type=date],
body input[type=datetime-local],
body input[type=time],
body input[type=tel],
body input[type=search],
body input[type=url] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 100%;
  padding: 12px 20px !important;
  border: 1px solid var(--border) !important;
  border-radius: 999px !important;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  line-height: 1.4;
  transition: border-color .18s, box-shadow .18s, background .18s;
  box-shadow: 0 1px 2px rgba(15,23,42,.03);
  outline: none;
}
body input[type=file], body select, body textarea, .form-control {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 100%;
  padding: 12px 16px !important;
  border: 1px solid var(--border) !important;
  border-radius: 14px !important;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  transition: border-color .18s, box-shadow .18s;
  box-shadow: 0 1px 2px rgba(15,23,42,.03);
  outline: none;
}
body input:hover, body select:hover, body textarea:hover { border-color: #cbd5e1 !important; }
[data-theme="dark"] body input:hover, [data-theme="dark"] body select:hover, [data-theme="dark"] body textarea:hover { border-color: #334155 !important; }
body input:focus, body select:focus, body textarea:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 4px var(--primary-soft) !important;
}
body input::placeholder, body textarea::placeholder { color: var(--text-muted); opacity: .65; }
body textarea { min-height: 90px; resize: vertical; border-radius: 14px !important; }
body select { background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e"); background-repeat:no-repeat; background-position:right 12px center; background-size:16px; padding-right:36px !important; }
body input[type=checkbox], body input[type=radio] { width:auto !important; padding:0 !important; box-shadow:none !important; border-radius:6px !important; accent-color: var(--primary); margin-right:6px; vertical-align:middle; }
body input[type=file] { padding:8px 12px !important; }
body input[type=color] { padding:4px !important; height:44px; cursor:pointer; }

.btn { display:inline-flex; align-items:center; gap:8px; padding:9px 16px; border-radius:var(--radius-sm); border:none; background:var(--primary); color:#fff; font-weight:600; cursor:pointer; font-size:14px; transition:background .15s, transform .1s; }
.btn:hover { background:var(--primary-hover); }
.btn:active { transform: scale(.98); }
.btn-secondary { background: var(--surface-2); color: var(--text); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background:#b91c1c; }
.btn-sm { padding:6px 10px; font-size:12px; }
.btn-ghost { background:transparent; color:var(--primary); border:1px solid var(--border); }
.btn-ghost:hover { background: var(--surface-2); }

.actions { display:flex; gap:6px; flex-wrap:wrap; }

/* ---------- Alerts ---------- */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom:16px; font-size:14px; font-weight:500; }
.alert-success { background: var(--success-soft); color: var(--success); }
.alert-danger  { background: var(--danger-soft);  color: var(--danger); }
.alert-warning { background: var(--warning-soft); color: var(--warning); }
.alert-info    { background: var(--primary-soft); color: var(--primary); }

/* ---------- Badges ---------- */
.badge { display:inline-block; padding:2px 10px; border-radius:999px; font-size:11px; font-weight:600; text-transform:uppercase; letter-spacing:.03em; }
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-danger  { background: var(--danger-soft);  color: var(--danger); }
.badge-warning { background: var(--warning-soft); color: var(--warning); }
.badge-info    { background: var(--primary-soft); color: var(--primary); }
.badge-muted   { background: var(--surface-2);    color: var(--text-muted); }

/* ---------- Stats ---------- */
.stat { padding:20px; background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow); }
.stat-label { font-size:12px; text-transform:uppercase; letter-spacing:.05em; color:var(--text-muted); font-weight:600; }
.stat-value { font-size:32px; font-weight:800; margin-top:6px; color:var(--text); }
.stat-trend { font-size:12px; color:var(--success); margin-top:4px; }

/* ---------- Login ---------- */
.login-shell { min-height:100vh; display:flex; align-items:center; justify-content:center; padding:20px;
  background: radial-gradient(circle at 20% 20%, #dbeafe 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, #e0e7ff 0%, transparent 50%), var(--bg); }
[data-theme="dark"] .login-shell { background: radial-gradient(circle at 20% 20%, #1e3a8a 0%, transparent 50%), radial-gradient(circle at 80% 80%, #4c1d95 0%, transparent 60%), var(--bg); }
.login-box { background:var(--surface); border-radius:16px; box-shadow: var(--shadow-lg); padding: 40px; width:100%; max-width: 420px; border:1px solid var(--border); }
.login-logo { width:64px; height:64px; border-radius:14px; background: linear-gradient(135deg,#2563eb,#7c3aed); color:#fff; display:flex; align-items:center; justify-content:center; font-size:32px; font-weight:800; margin: 0 auto 16px; }
.login-title { text-align:center; font-size:24px; font-weight:800; margin-bottom:6px; }
.login-sub { text-align:center; color:var(--text-muted); margin-bottom:28px; font-size:14px; }
.login-hint { margin-top:20px; padding:12px; background:var(--surface-2); border-radius:8px; font-size:12px; color:var(--text-muted); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left:0; }
  .menu-toggle { display:inline-flex; }
  .content { padding:16px; }
  .user-chip .user-name, .user-chip .user-logout { display:none; }
}

/* ---------- Calendar ---------- */
.cal-nav { display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; gap:12px; }
.cal-title { font-size:18px; font-weight:700; text-transform:capitalize; }
.calendar { border:1px solid var(--border); border-radius:12px; overflow:hidden; background:var(--surface); }
.cal-head { display:grid; grid-template-columns:repeat(5,1fr); background:var(--surface-2); }
.cal-dow { padding:10px; text-align:center; font-weight:700; font-size:12px; text-transform:uppercase; color:var(--text-muted); border-right:1px solid var(--border); }
.cal-dow:last-child { border-right:none; }
.cal-row { display:grid; grid-template-columns:repeat(5,1fr); border-top:1px solid var(--border); }
.cal-cell { min-height:110px; padding:8px; border-right:1px solid var(--border); cursor:pointer; transition:background .12s; position:relative; }
.cal-cell:last-child { border-right:none; }
.cal-cell:hover { background:var(--surface-2); }
.cal-empty { background:repeating-linear-gradient(45deg,transparent,transparent 6px,var(--surface-2) 6px,var(--surface-2) 12px); cursor:default; }
.cal-today { background:var(--primary-soft); }
.cal-day { font-weight:700; font-size:14px; color:var(--text); margin-bottom:6px; }
.cal-today .cal-day { color:var(--primary); }
.cal-events { display:flex; flex-direction:column; gap:4px; }
.cal-ev { padding:4px 6px; border-radius:6px; font-size:11px; line-height:1.3; overflow:hidden; }
.cal-ev strong { display:block; font-size:11px; }
.cal-ev small { display:block; font-size:10px; opacity:.85; }
.cal-ev-blue   { background:#dbeafe; color:#1e40af; }
.cal-ev-green  { background:#dcfce7; color:#166534; }
.cal-ev-orange { background:#ffedd5; color:#9a3412; }
.cal-ev-red    { background:#fee2e2; color:#991b1b; }
[data-theme="dark"] .cal-ev-blue   { background:#1e3a8a; color:#dbeafe; }
[data-theme="dark"] .cal-ev-green  { background:#14532d; color:#dcfce7; }
[data-theme="dark"] .cal-ev-orange { background:#7c2d12; color:#ffedd5; }
[data-theme="dark"] .cal-ev-red    { background:#7f1d1d; color:#fee2e2; }

/* ---------- Modal ---------- */
.cal-modal { display:none; position:fixed; inset:0; background:rgba(0,0,0,.5); z-index:100; align-items:center; justify-content:center; padding:20px; }
.cal-modal.open { display:flex; }
.cal-modal-box { background:var(--surface); border-radius:14px; width:100%; max-width:520px; max-height:90vh; overflow-y:auto; box-shadow:var(--shadow-lg); }
.cal-modal-head { display:flex; align-items:center; justify-content:space-between; padding:16px 20px; border-bottom:1px solid var(--border); }
.cal-modal-head h3 { margin:0; font-size:17px; }
.cal-modal-body { padding:20px; }

@media (max-width:768px) {
  .cal-cell { min-height:70px; padding:4px; }
  .cal-ev { font-size:10px; }
}

/* ---------- Tabs (matrículas) ---------- */
.tabs { display:flex; gap:4px; border-bottom:2px solid var(--border); margin-bottom:20px; overflow-x:auto; }
.tab-btn { padding:10px 16px; border:none; background:transparent; color:var(--text-muted); font-weight:600; font-size:13px; cursor:pointer; border-radius:10px 10px 0 0; white-space:nowrap; transition:color .15s, background .15s; }
.tab-btn:hover { color: var(--text); background: var(--surface-2); }
.tab-btn.active { color: var(--primary); border-bottom:3px solid var(--primary); margin-bottom:-2px; }
.tab-panel { display:none; }
.tab-panel.active { display:block; animation:fadeIn .18s; }
@keyframes fadeIn { from { opacity:0; transform:translateY(4px); } to { opacity:1; transform:translateY(0); } }

/* ---------- Weekly Reservations Grid ---------- */
.week-nav { display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; gap:12px; }
.week-title { font-size:17px; font-weight:700; }
.week-grid { display:grid; grid-template-columns: 110px repeat(5,1fr); border:1px solid var(--border); border-radius:12px; overflow:hidden; background:var(--surface); }
.week-cell { border-right:1px solid var(--border); border-bottom:1px solid var(--border); padding:8px; min-height:60px; font-size:12px; }
.week-cell:nth-child(6n) { border-right:none; }
.week-head { background:var(--surface-2); font-weight:700; text-align:center; padding:12px 6px; text-transform:uppercase; letter-spacing:.03em; font-size:11px; color:var(--text-muted); }
.week-head .dnum { font-size:20px; color:var(--text); display:block; margin-top:4px; }
.week-head.today { background: var(--primary-soft); }
.week-head.today .dnum { color: var(--primary); }
.block-label { background:var(--surface-2); font-weight:600; text-align:center; display:flex; flex-direction:column; justify-content:center; align-items:center; padding:8px 6px; }
.block-label small { font-weight:400; color:var(--text-muted); font-size:10px; margin-top:2px; }
.slot { display:block; padding:8px 6px; border-radius:8px; cursor:pointer; font-size:11px; line-height:1.3; text-align:center; transition:transform .12s, box-shadow .12s; height:100%; }
.slot-free { background:transparent; color:var(--text-muted); border:2px dashed var(--border); }
.slot-free:hover { border-color:var(--primary); color:var(--primary); background:var(--primary-soft); transform:scale(1.02); }
.slot-taken { background:#dbeafe; color:#1e40af; border:2px solid #93c5fd; font-weight:600; }
.slot-taken strong { display:block; }
.slot-taken small { display:block; font-weight:400; opacity:.85; }
[data-theme="dark"] .slot-taken { background:#1e3a8a; color:#dbeafe; border-color:#3b82f6; }
.slot-blocked { background:#fee2e2; color:#991b1b; border:2px solid #fca5a5; font-weight:600; cursor:not-allowed; }
[data-theme="dark"] .slot-blocked { background:#7f1d1d; color:#fecaca; border-color:#b91c1c; }
.slot-mine { background:#dcfce7; color:#166534; border-color:#86efac; }
[data-theme="dark"] .slot-mine { background:#14532d; color:#bbf7d0; border-color:#22c55e; }

/* ---------- Sub-navbar (admin/alumnos) ---------- */
.subnav { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:20px; padding:6px; background:var(--surface-2); border-radius:12px; }
.subnav a { padding:8px 14px; border-radius:8px; font-size:13px; font-weight:600; color:var(--text-muted); text-decoration:none; transition:all .15s; }
.subnav a:hover { color:var(--text); background:var(--surface); }
.subnav a.active { background:var(--primary); color:#fff; }

.help-inline { display:inline-block; padding:2px 8px; margin-left:8px; font-size:11px; border-radius:6px; background:var(--success-soft); color:var(--success); font-weight:600; }
.help-inline.new { background: var(--warning-soft); color: var(--warning); }