/* ============================================================
   theme.css — tema oscuro compartido por todo ExamLock
   (estilo GameVerse: fondo morado oscuro, acento rosa/magenta)
   ============================================================ */

:root {
	--bg: #120a1f;
	--panel: #1b1030;
	--panel-alt: #241a3d;
	--panel-hover: #2b2047;
	--border: #33254f;
	--text: #f1eef7;
	--text-dim: #a89dc2;
	--accent: #ff2f6e;
	--accent-2: #7c3aed;
	--success: #34d399;
	--success-bg: rgba(52, 211, 153, .14);
	--danger: #f87171;
	--danger-bg: rgba(248, 113, 113, .14);
	--warning: #fbbf24;
	--warning-bg: rgba(251, 191, 36, .14);
	--info: #60a5fa;
	--info-bg: rgba(96, 165, 250, .14);
	--radius: 12px;
	--sidebar-w: 220px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }
body {
	background: var(--bg);
	color: var(--text);
	font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
	font-size: 14px;
	line-height: 1.45;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 6px; line-height: 1.25; }
h3 { font-size: 16px; }
p { margin: 0 0 10px; }
code, .mono { font-family: Consolas, "Cascadia Mono", Menlo, monospace; font-size: 12.5px; }
code { background: var(--panel-alt); border: 1px solid var(--border); padding: 1px 6px; border-radius: 6px; }

.dim { color: var(--text-dim); }
.small { font-size: 12.5px; }
.nowrap { white-space: nowrap; }
.num { font-variant-numeric: tabular-nums; }
.text-danger { color: var(--danger); }

/* ---- Formularios ---- */
button, input, select, textarea { font-family: inherit; font-size: 14px; }
label { display: block; font-size: 12px; font-weight: 600; color: var(--text-dim); margin-bottom: 5px; }
input[type="text"], input[type="search"], input[type="email"], input[type="password"], input[type="file"], select, textarea {
	width: 100%;
	background: var(--panel-alt);
	color: var(--text);
	border: 1px solid var(--border);
	border-radius: 8px;
	padding: 8px 11px;
	outline: none;
	transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255, 47, 110, .18); }
.field { margin-bottom: 12px; }
.form-inline { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.form-inline .field { flex: 1 1 180px; margin-bottom: 0; }

/* ---- Botones ---- */
.btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 6px;
	padding: 8px 16px; border-radius: 8px; border: 1px solid transparent;
	cursor: pointer; font-weight: 600; line-height: 1.2; white-space: nowrap;
	text-decoration: none !important; transition: filter .15s, border-color .15s, background .15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); }
.btn-danger { background: var(--danger-bg); color: var(--danger); border-color: rgba(248,113,113,.35); }
.btn-danger:hover { background: rgba(248,113,113,.26); }
.btn-success { background: var(--success-bg); color: var(--success); border-color: rgba(52,211,153,.35); }
.btn-success:hover { background: rgba(52,211,153,.26); }
.btn-sm { padding: 5px 11px; font-size: 12.5px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---- Layout admin: sidebar + contenido ---- */
.app { display: flex; min-height: 100vh; }
.sidebar {
	width: var(--sidebar-w); flex: 0 0 var(--sidebar-w);
	background: var(--panel); border-right: 1px solid var(--border);
	padding: 18px 12px; display: flex; flex-direction: column;
	position: sticky; top: 0; height: 100vh;
}
.brand { font-size: 20px; font-weight: 800; letter-spacing: .3px; padding: 0 10px 18px; }
.brand span { color: var(--accent); }
.sidebar nav { display: flex; flex-direction: column; gap: 3px; flex: 1; }
.sidebar nav a, .link-button {
	display: flex; align-items: center; gap: 10px;
	padding: 9px 10px; border-radius: 8px;
	color: var(--text-dim); font-weight: 500; text-decoration: none;
}
.sidebar nav a:hover, .link-button:hover { background: var(--panel-alt); color: var(--text); text-decoration: none; }
.sidebar nav a.active { background: var(--accent); color: #fff; }
.nav-icon { width: 18px; text-align: center; flex: 0 0 18px; font-size: 14px; }
.sidebar-footer { border-top: 1px solid var(--border); padding-top: 10px; margin: 0; }
.link-button { width: 100%; background: none; border: 0; cursor: pointer; font-size: 14px; text-align: left; }
.link-button:hover { color: var(--danger); }

.main { flex: 1; min-width: 0; padding: 18px 24px 28px; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 14px; }
.topbar h1 { font-size: 21px; margin: 0; }
.subtitle { color: var(--text-dim); margin: 2px 0 0; font-size: 13px; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.avatar {
	width: 34px; height: 34px; border-radius: 50%;
	background: var(--accent-2); color: #fff; font-weight: 700;
	display: flex; align-items: center; justify-content: center;
}

/* ---- Tarjetas ---- */
.card {
	background: var(--panel); border: 1px solid var(--border);
	border-radius: var(--radius); padding: 16px 18px; margin-bottom: 14px;
}
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 14px; }
.grid-2 .card { margin-bottom: 0; }

/* ---- Alertas y badges ---- */
.alert { padding: 10px 14px; border-radius: 10px; margin-bottom: 14px; border: 1px solid transparent; }
.alert-success { background: var(--success-bg); color: var(--success); border-color: rgba(52,211,153,.3); }
.alert-error   { background: var(--danger-bg);  color: var(--danger);  border-color: rgba(248,113,113,.3); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border-color: rgba(251,191,36,.3); }

.badge {
	display: inline-block; padding: 3px 9px; border-radius: 999px;
	font-size: 11.5px; font-weight: 700; white-space: nowrap;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-info    { background: var(--info-bg);    color: var(--info); }
.badge-neutral { background: var(--panel-alt);  color: var(--text-dim); }

/* ---- Tablas ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
	text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .6px;
	color: var(--text-dim); font-weight: 700; padding: 9px 12px;
	border-bottom: 1px solid var(--border); white-space: nowrap;
}
td { padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: rgba(255,255,255,.02); }
.empty-state { text-align: center; color: var(--text-dim); padding: 30px 12px !important; }
.td-detalle { max-width: 360px; overflow-wrap: anywhere; color: var(--text-dim); font-size: 12.5px; }
.pager { display: flex; gap: 10px; margin-top: 14px; }

.fila-bloqueada td { background: rgba(248,113,113,.08); }
.fila-bloqueada td:first-child { box-shadow: inset 3px 0 0 var(--danger); }
.fila-reciente td { background: rgba(251,191,36,.10); animation: parpadeo 1s ease-in-out 3; }
.fila-reciente td:first-child { box-shadow: inset 3px 0 0 var(--warning); }
.fila-pendiente td { color: var(--text-dim); }
@keyframes parpadeo { 50% { background: rgba(251,191,36,.22); } }

/* ============================================================
   Monitor en vivo
   ============================================================ */
.control-bar { display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap; padding: 14px 16px; }
.control-group { display: flex; flex-direction: column; min-width: 0; }
.control-group label { margin-bottom: 5px; }
.control-examen { flex: 1 1 200px; }
.control-grado { flex: 0 0 120px; }
.control-link { flex: 1 1 260px; }
.control-sep { width: 1px; align-self: stretch; background: var(--border); }
.control-subir { align-self: flex-end; }

.copy-field {
	display: flex; align-items: center; gap: 8px;
	background: var(--panel-alt); border: 1px solid var(--border); border-radius: 8px; padding: 4px 4px 4px 10px;
}
.copy-field code { background: none; border: 0; padding: 0; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Interruptor habilitado / deshabilitado */
.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; margin: 0; height: 36px; color: var(--text); font-size: 14px; font-weight: 600; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch-track { width: 42px; height: 24px; border-radius: 999px; background: var(--danger-bg); border: 1px solid rgba(248,113,113,.45); position: relative; transition: background .2s, border-color .2s; }
.switch-thumb { position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: var(--danger); transition: transform .2s, background .2s; }
.switch input:checked + .switch-track { background: var(--success-bg); border-color: rgba(52,211,153,.5); }
.switch input:checked + .switch-track .switch-thumb { transform: translateX(18px); background: var(--success); }
.switch input:focus-visible + .switch-track { box-shadow: 0 0 0 3px rgba(255,47,110,.3); }
.switch input:disabled + .switch-track { opacity: .5; }
.switch-text { min-width: 100px; }
.switch input:checked ~ .switch-text { color: var(--success); }
.switch input:not(:checked) ~ .switch-text { color: var(--danger); }

/* Indicador "En vivo" */
.live { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; font-weight: 600; color: var(--text-dim); background: var(--panel); border: 1px solid var(--border); padding: 5px 11px; border-radius: 999px; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-dim); }
.live-ok { color: var(--success); }
.live-ok .live-dot { background: var(--success); animation: latido 1.6s infinite; }
.live-warn { color: var(--warning); }
.live-warn .live-dot { background: var(--warning); }
.live-error { color: var(--danger); }
.live-error .live-dot { background: var(--danger); }
@keyframes latido { 0% { box-shadow: 0 0 0 0 rgba(52,211,153,.6); } 70% { box-shadow: 0 0 0 7px rgba(52,211,153,0); } 100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); } }

/* Contadores */
.stats { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; margin-bottom: 14px; }
.stat {
	display: flex; flex-direction: column; align-items: flex-start; gap: 2px;
	background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
	padding: 10px 14px; cursor: pointer; color: var(--text); text-align: left;
	border-top: 3px solid var(--text-dim); transition: background .15s, border-color .15s;
}
.stat:hover { background: var(--panel-hover); }
.stat.active { border-color: var(--accent); background: var(--panel-alt); }
.stat-num { font-size: 24px; font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.1; }
.stat-label { font-size: 12px; color: var(--text-dim); font-weight: 600; }
.stat-neutral { border-top-color: var(--text-dim); }
.stat-info { border-top-color: var(--info); }
.stat-info .stat-num { color: var(--info); }
.stat-warning { border-top-color: var(--warning); }
.stat-warning .stat-num { color: var(--warning); }
.stat-danger { border-top-color: var(--danger); }
.stat-danger .stat-num { color: var(--danger); }
.stat-success { border-top-color: var(--success); }
.stat-success .stat-num { color: var(--success); }
.stat[data-filtro="todos"] { border-top-color: var(--accent); }

/* Tabla del monitor */
.card-table { padding: 0; overflow: hidden; }
.table-toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.table-toolbar input[type="search"] { flex: 1 1 240px; width: auto; }
.table-toolbar select { width: auto; flex: 0 1 230px; }
.toolbar-info { margin-left: auto; color: var(--text-dim); font-size: 12.5px; white-space: nowrap; }
.tabla-monitor td, .tabla-monitor th { padding-left: 14px; padding-right: 14px; }
.est-nombre { font-weight: 600; }
.sub { display: block; font-size: 11.5px; color: var(--text-dim); }
.pc-tag { display: inline-block; background: var(--accent-2); color: #fff; font-weight: 700; font-size: 11.5px; padding: 1px 7px; border-radius: 6px; margin-bottom: 2px; }
.td-accion { text-align: right; width: 1%; white-space: nowrap; }
.dots { display: inline-flex; gap: 5px; vertical-align: middle; }
.dot { width: 11px; height: 11px; border-radius: 50%; background: var(--panel-alt); border: 1px solid var(--border); }
.dot.on { background: var(--warning); border-color: var(--warning); }
/* 1ª salida amarillo, 2ª naranja, 3ª rojo */
.dots .dot.on:nth-child(1) { background: #facc15; border-color: #facc15; }
.dots .dot.on:nth-child(2) { background: #fb923c; border-color: #fb923c; }
.dots .dot.on:nth-child(3) { background: #ef4444; border-color: #ef4444; box-shadow: 0 0 6px rgba(239,68,68,.7); }

/* ============================================================
   Páginas de login (estudiantes /select y admin)
   ============================================================ */
.auth-page, body.select-page, body.login-page {
	min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px;
	background: radial-gradient(1000px 600px at 50% -10%, rgba(124,58,237,.25), transparent 60%), var(--bg);
}
.auth-card {
	width: 100%; max-width: 460px; text-align: center;
	background: var(--panel); border: 1px solid var(--border); border-radius: 18px;
	padding: 36px 32px; box-shadow: 0 24px 60px rgba(0,0,0,.4);
}
.auth-brand { font-size: 22px; font-weight: 800; margin-bottom: 22px; }
.auth-brand span { color: var(--accent); }
.auth-card h1 { font-size: 28px; margin: 12px 0 8px; }
.auth-sub { color: var(--text-dim); font-size: 16px; margin-bottom: 24px; }
.auth-sub strong { color: var(--text); }
.auth-icon { font-size: 40px; line-height: 1; opacity: .8; }
.auth-google { display: flex; justify-content: center; min-height: 44px; }
.auth-estado { margin-top: 14px; min-height: 20px; font-size: 14px; color: var(--text-dim); }
.auth-estado.error { color: var(--danger); }
.pill { display: inline-block; background: rgba(255,47,110,.14); color: var(--accent); font-weight: 700; font-size: 12.5px; padding: 4px 12px; border-radius: 999px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
	.stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
	.control-sep { display: none; }
}
@media (max-width: 800px) {
	.app { flex-direction: column; }
	.sidebar { width: 100%; flex: none; height: auto; position: static; flex-direction: row; align-items: center; padding: 10px 12px; gap: 8px; overflow-x: auto; }
	.brand { padding: 0 8px 0 0; }
	.sidebar nav { flex-direction: row; flex: 1; }
	.sidebar nav a { white-space: nowrap; }
	.sidebar nav a .nav-text { display: none; }
	.sidebar nav a.active .nav-text { display: inline; }
	.sidebar-footer { border: 0; padding: 0; }
	.link-button .nav-text { display: none; }
	.main { padding: 14px; }
	.stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.toolbar-info { margin-left: 0; }
	.auth-card { padding: 28px 20px; }
}

/* ============================================================
   Subir examen
   ============================================================ */
.upload-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 14px; align-items: start; }
.upload-layout .card { margin-bottom: 0; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.card-head h3 { margin: 0; }
.btn-block { width: 100%; padding: 11px 16px; }

.exam-title { font-size: 18px; font-weight: 700; margin-bottom: 14px; overflow-wrap: anywhere; }
.info-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0 0 16px; }
.info-list div { background: var(--panel-alt); border: 1px solid var(--border); border-radius: 10px; padding: 9px 12px; }
.info-list dt { font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--text-dim); font-weight: 700; }
.info-list dd { margin: 2px 0 0; font-weight: 600; }
.card-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.card-actions form { margin: 0; }
.empty-box { text-align: center; padding: 26px 10px; color: var(--text); }
.empty-icon { font-size: 36px; margin-bottom: 8px; }

.dropzone {
	position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
	min-height: 150px; margin: 0 0 12px; padding: 20px; text-align: center; cursor: pointer;
	border: 2px dashed var(--border); border-radius: 12px; background: var(--panel-alt);
	color: var(--text-dim); font-size: 14px; font-weight: 400; transition: border-color .15s, background .15s;
}
.dropzone:hover, .dropzone.is-over { border-color: var(--accent); background: rgba(255,47,110,.06); }
.dropzone input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; }
.dz-icon { font-size: 30px; color: var(--accent); line-height: 1; }
.dz-text strong { color: var(--text); }
.dz-file { display: flex; flex-direction: column; gap: 2px; }
.dz-file strong { color: var(--text); font-size: 15px; overflow-wrap: anywhere; }
.dropzone.has-file { border-style: solid; border-color: rgba(52,211,153,.55); background: var(--success-bg); }
.dropzone.has-file .dz-icon { color: var(--success); }
.dropzone.is-error { border-style: solid; border-color: rgba(248,113,113,.55); background: var(--danger-bg); }
.dropzone.is-error .dz-icon, .dropzone.is-error span { color: var(--danger); }

.progress { position: relative; height: 26px; border-radius: 8px; background: var(--panel-alt); border: 1px solid var(--border); overflow: hidden; margin-bottom: 12px; }
.progress-bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent-2), var(--accent)); transition: width .2s; }
.progress-text { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 12.5px; font-weight: 700; }

.steps { margin: 16px 0 0; padding: 14px 14px 14px 32px; background: var(--panel-alt); border-radius: 10px; color: var(--text-dim); font-size: 13px; }
.steps li { margin-bottom: 4px; }
.steps li:last-child { margin-bottom: 0; }
.steps strong { color: var(--text); }

@media (max-width: 900px) {
	.upload-layout { grid-template-columns: 1fr; }
}

/* Orden de llegada en el monitor */
.th-orden, .td-orden { width: 1%; text-align: center; padding-right: 4px !important; }
.orden { display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; padding: 0 6px; border-radius: 999px; background: var(--panel-alt); border: 1px solid var(--border); font-size: 12px; font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; }