/* Piloto · clase en vivo interactiva · complementa styles.css */
[hidden] { display: none !important; }
input:not([type=radio]):not([type=checkbox]), textarea, select { font: inherit; max-width: 100%; min-width: 0; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; color: var(--ink); background: white; }
textarea { width: 100%; resize: vertical; }
button:disabled { opacity: .5; cursor: not-allowed; transform: none !important; box-shadow: none !important; }
.button { white-space: normal; }
.button.danger { background: var(--danger); }
.button.gold { background: var(--gold); color: var(--navy); }

/* Acceso */
.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: var(--navy); }
.auth-card { width: min(440px, 100%); padding: 34px; border-radius: 22px; background: var(--surface); box-shadow: var(--shadow); }
.auth-card .brand { color: var(--ink); padding: 0 0 18px; }
.auth-card .brand small { color: var(--muted); }
.auth-card h1 { margin: 0 0 6px; font-family: Georgia, serif; font-size: 1.7rem; }
.auth-switch { display: flex; gap: 6px; margin: 18px 0 4px; padding: 4px; border-radius: 12px; background: var(--paper); }
.auth-switch button { flex: 1; padding: 9px; border: 0; border-radius: 9px; background: transparent; color: var(--muted); font-weight: 700; }
.auth-switch button[aria-pressed=true] { background: white; color: var(--ink); box-shadow: 0 2px 8px rgba(16,24,39,.08); }
.auth-card .field { margin: 14px 0; }
.form-error { margin: 10px 0 0; color: var(--danger); font-size: 14px; font-weight: 650; min-height: 1.2em; }

/* Panel */
.group-list { display: grid; gap: 18px; }
.group-card { padding: 22px; }
.group-card h2 { margin: 0; font-family: Georgia, serif; font-size: 1.35rem; }
.group-card .head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 12px; }
.group-card .actions { display: flex; flex-wrap: wrap; gap: 8px; }
.session-rows { margin: 16px 0 0; padding: 0; list-style: none; }
.session-rows li { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid #edf0f2; }
.session-rows .when { min-width: 150px; font-weight: 700; font-variant-numeric: tabular-nums; }
.session-rows .title { flex: 1; min-width: 160px; }
.tag.live { color: #a1343e; background: #fbe6e8; }
.tag.closed { color: #566171; background: #e9edf0; }
.tag.draft { color: #7a6420; background: #f7efd6; }
.two-col { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 22px; align-items: start; }
.inline-form { display: grid; gap: 10px; }
.inline-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.code-box { display: flex; align-items: center; gap: 12px; padding: 14px; border: 1px dashed var(--teal-dark); border-radius: 12px; background: #eaf3fb; }
.code-box strong { font-family: Georgia, serif; font-size: 1.6rem; letter-spacing: .18em; }
.members { margin: 12px 0 0; padding: 0; list-style: none; }
.members li { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-top: 1px solid #edf0f2; font-size: 14px; }

/* Sesión */
.session-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 18px; }
.session-top h1 { margin: 4px 0 0; font-family: Georgia, serif; font-size: 2rem; line-height: 1.1; }
.session-top .actions { display: flex; flex-wrap: wrap; gap: 8px; }
.live-brief.compact { padding: 16px 22px; margin: 0 0 18px; }
.live-grid { grid-template-columns: minmax(0, 1.7fr) minmax(300px, .95fr); }
.live-activity { padding: 26px; min-height: 420px; }
.live-side-body { padding: 18px; max-height: 70vh; overflow: auto; }
.seq { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.seq li { display: grid; gap: 8px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; }
.seq li.open { border-color: var(--teal-dark); box-shadow: inset 4px 0 0 var(--teal-dark); }
.seq li.closed { opacity: .75; }
.seq .kind { font-size: 12px; font-weight: 750; color: var(--muted); }
.seq .row { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.seq .row strong { flex: 1; min-width: 120px; }
.choice-list { display: grid; gap: 8px; margin: 14px 0; }
.choice-list label { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 11px; cursor: pointer; }
.choice-list label:has(input:checked) { border-color: var(--teal-dark); background: #eaf3fb; }
.result-bar { display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; align-items: center; margin: 6px 0; }
.result-bar .track { grid-column: 1 / -1; height: 8px; border-radius: 6px; background: #edf0f2; overflow: hidden; }
.result-bar .fill { height: 100%; background: var(--teal-dark); }
.presence { list-style: none; margin: 0; padding: 0; }
.presence li { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-top: 1px solid #edf0f2; font-size: 14px; }
.presence li:first-child { border-top: 0; }
.presence .dot { width: 9px; height: 9px; border-radius: 50%; background: #c7cfd6; }
.presence .dot.on { background: var(--teal); box-shadow: 0 0 0 3px rgba(47,143,214,.18); }
.presence .flags { margin-left: auto; display: flex; gap: 6px; }
.presence .help { color: #a1343e; background: #fbe6e8; }
.presence .done { color: var(--teal-dark); background: #e3eefa; }
.materials-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.materials-list li { display: grid; gap: 6px; padding: 12px; border: 1px solid var(--line); border-radius: 11px; }
.materials-list li.hidden-m { opacity: .55; }
.materials-list .row { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.materials-list .row strong { flex: 1; }
.material-text { white-space: pre-wrap; font-family: Georgia, serif; font-size: 1.05rem; line-height: 1.7; padding: 14px; background: #f2f7fc; border-left: 4px solid var(--teal); border-radius: 0 10px 10px 0; }
.help-btn { position: fixed; right: 22px; bottom: 22px; z-index: 40; min-height: 52px; padding: 12px 20px; border-radius: 999px; box-shadow: var(--shadow); }
.help-btn[aria-pressed=true] { background: var(--danger); }
.q-item { padding: 12px 0; border-top: 1px solid #edf0f2; display: grid; gap: 6px; }
.q-item .row { display: flex; align-items: center; gap: 8px; }
.q-item .row strong { flex: 1; font-weight: 600; }
.q-item.answered { opacity: .6; }
.vote { min-width: 52px; }
.live-wait { padding: 40px 20px; text-align: center; color: var(--muted); }
.live-wait h2 { font-family: Georgia, serif; color: var(--ink); }
.recording-box { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 16px 20px; border-radius: 14px; background: #f2f7fc; margin-bottom: 18px; }
.subgrid { display: grid; gap: 10px; }
details.editor { margin-top: 18px; border: 1px dashed var(--line); border-radius: 12px; padding: 12px 16px; }
details.editor summary { cursor: pointer; font-weight: 750; }
.responses-table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 12px; }
.responses-table td { padding: 8px 6px; border-top: 1px solid #edf0f2; vertical-align: top; }
.responses-table td:first-child { font-weight: 700; white-space: nowrap; }
.responses-table img { max-width: 220px; border-radius: 8px; display: block; }
.notice { padding: 14px 16px; border-radius: 12px; background: #fff7e0; border: 1px solid #f1dfa2; font-size: 14px; }

@media (max-width: 1080px) {
  .live-grid, .two-col { grid-template-columns: 1fr; }
  .live-side-body { max-height: none; }
}
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { transform: translateX(-100%); transition: .2s; }
  body.nav-open .sidebar { transform: none; }
  .workspace { grid-column: 1; }
  .menu-button { display: inline-grid; place-items: center; }
  .page { padding: 18px; }
  .session-top h1 { font-size: 1.5rem; }
  .inline-form .row { grid-template-columns: 1fr; }
}

/* Material proyectado */
.stage-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 10px; }
.stage-head strong { flex: 1; font-family: Georgia, serif; font-size: 1.15rem; }
.stage { min-height: 60vh; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: white; }
.stage-frame { width: 100%; height: 72vh; border: 0; display: block; background: white; }
.stage:fullscreen .stage-frame { height: 100vh; }
.stage-text { min-height: 0; margin: 0; }
.activity-card { margin-bottom: 14px; border: 1px solid var(--teal-dark); border-radius: 12px; padding: 10px 14px; background: #f3fbf9; }
.activity-card summary { cursor: pointer; font-weight: 750; display: flex; align-items: center; gap: 8px; }
.activity-card > div { padding-top: 10px; }
.pip-hint { margin: 12px 0 0; }
.live-class .live-activity:has(.stage) { padding: 18px; }
@media (max-width: 900px) { .stage-frame { height: 70vh; } }

/* Menú móvil */
.nav-overlay { display: none; position: fixed; inset: 0; background: rgba(16,24,39,.45); z-index: 25; }
.nav-close { display: none; position: absolute; top: 12px; right: 12px; z-index: 31; }
.rt-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #d9a441; vertical-align: middle; margin-left: 4px; }
.rt-dot[data-on="true"] { background: var(--teal); }
@media (max-width: 900px) {
  .sidebar { position: fixed; top: 0; left: 0; bottom: 0; z-index: 30; width: min(280px, 85vw); overflow: auto; }
  body.nav-open .nav-overlay { display: block; }
  body.nav-open .nav-close { display: inline-grid; place-items: center; }
}

/* Barra de respuesta del alumno */
.reply-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 35; background: rgba(255,255,255,.96); backdrop-filter: blur(6px); border-top: 1px solid var(--line); padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); }
.reply-bar-inner { display: flex; gap: 10px; align-items: flex-end; max-width: 1100px; margin: 0 auto; }
.reply-field { flex: 1; display: grid; gap: 4px; min-width: 0; }
.reply-label { font-size: 12px; font-weight: 750; color: var(--teal-dark); min-height: 14px; }
.reply-label.duda { color: var(--muted); }
#bar-text { width: 100%; resize: none; max-height: 120px; font-size: 16px; }
.reply-send { min-height: 44px; }
.reply-help { width: 44px; height: 44px; font-size: 20px; }
.reply-help[aria-pressed="true"] { background: #fbe6e8; }
.reply-status { max-width: 1100px; margin: 6px auto 0; font-size: 13px; color: var(--teal-dark); }
body.has-bar .page { padding-bottom: 130px; }
body.has-bar .help-btn { display: none; }

/* Turno rápido: burbujas */
.turn-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.turn-head h2 { font-family: Georgia, serif; margin: 0; font-size: 1.5rem; flex: 1; }
.turn-counter { font-weight: 750; color: var(--teal-dark); }
.bubbles { display: grid; gap: 8px; margin-top: 14px; }
.bubble { display: grid; gap: 4px; padding: 10px 14px; border-radius: 14px 14px 14px 4px; background: #f2f7fc; border: 1px solid #d8e6f3; animation: pop .25s ease-out; }
.bubble.duda { background: #fff7e0; border-color: #f1dfa2; }
.bubble .who { font-size: 12px; font-weight: 750; color: var(--muted); display: flex; gap: 8px; }
.bubble .who time { font-weight: 500; }
.bubble p { margin: 0; white-space: pre-wrap; }
@keyframes pop { from { transform: translateY(6px); opacity: 0; } to { transform: none; opacity: 1; } }
.q-inline { padding: 14px 18px; border-radius: 12px; background: #eaf3fb; border: 1px solid var(--teal-dark); margin-bottom: 14px; }
.q-inline .eyebrow { margin: 0 0 4px; }
.q-inline strong { font-family: Georgia, serif; font-size: 1.2rem; }
.button.quick-open { background: var(--gold); color: var(--navy); }
input[type=checkbox], input[type=radio] { width: 18px; height: 18px; flex: none; margin: 0; accent-color: var(--teal-dark); }

.brand-logo { object-fit: cover; background: #fff; border-radius: 50%; padding: 0; }