/* css/live-quiz.css — Live Classroom Quiz (host + player), shared by teacher & student portals.
   Uses palette variables from vars.css so light/dark themes are automatic. */

/* ── Self-paced nav + guest tag ── */
.lq-self-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.75rem;
  flex-wrap: wrap;
}
.lq-guest-tag {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text3);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.05rem 0.4rem;
  margin-left: 0.35rem;
}

/* ── Guest entry page (live.html) ── */
.lqg-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: var(--bg);
}
.lqg-card {
  width: 100%;
  max-width: 360px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2rem 1.75rem;
  text-align: center;
}
.lqg-logo { font-family: var(--display); font-weight: 800; color: var(--accent); font-size: 1.4rem; }
.lqg-title { font-family: var(--display); font-weight: 700; font-size: 1.3rem; margin-top: 0.75rem; }
.lqg-sub { color: var(--text2); font-size: 0.85rem; margin: 0.4rem 0 1.5rem; }
.lqg-input {
  width: 100%;
  box-sizing: border-box;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  font-family: var(--sans);
  font-size: 1rem;
  margin-bottom: 0.75rem;
  outline: none;
}
.lqg-input:focus { border-color: var(--accent); }
#lqg-pin { font-family: var(--mono); letter-spacing: 0.2em; text-align: center; font-size: 1.3rem; }
.lqg-error { color: var(--red); font-size: 0.82rem; margin-bottom: 0.75rem; }
.lqg-join { width: 100%; }
.lqg-signin { margin-top: 1rem; font-size: 0.82rem; color: var(--text2); }
.lqg-signin a { color: var(--accent); font-weight: 600; text-decoration: none; }
.lqg-signin a:hover { text-decoration: underline; }

/* ── Site-styled confirm dialog ── */
.lq-confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 1300;
  display: none;
  place-items: center;
  background: rgba(0, 0, 0, 0.5);
  padding: 1.5rem;
}
.lq-confirm-overlay.open { display: grid; }
.lq-confirm-box {
  width: 100%;
  max-width: 380px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem 1.5rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}
.lq-confirm-msg { color: var(--text); font-size: 0.95rem; line-height: 1.5; margin-bottom: 1.5rem; text-align: center; }
.lq-confirm-actions { display: flex; gap: 0.75rem; justify-content: center; }

/* ── Pick-questions modal (live quiz) ── */
.lq-pick-box {
  max-width: 760px;
  width: 100%;
  height: 88vh;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden; /* only the list scrolls; header/tabs/footer stay put */
}
.lq-pick-box .lq-results-head,
.lqp-tabs,
.lqp-pick-controls,
.lqp-pick-footer { flex-shrink: 0; }

/* Segmented tabs — clearly switchable */
.lqp-tabs {
  display: flex;
  gap: 0.3rem;
  margin: 0 1.25rem 0.85rem;
  padding: 0.3rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 11px;
}
.lqp-tab {
  flex: 1;
  padding: 0.55rem 0.5rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text2);
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.lqp-tab:hover { color: var(--text); }
.lqp-tab.is-active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}
.lqp-pick-controls {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  padding: 0 1.25rem 0.75rem;
}
.lqp-pick-list {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 0 1.25rem;
}
.lqp-filter { flex: 1; min-width: 120px; margin: 0; font-size: 0.82rem; padding: 0.4rem 0.5rem; }
.lqp-pick-empty { padding: 2.5rem; text-align: center; color: var(--text2); font-size: 0.88rem; }
.lqp-pick-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 0.7rem 0.85rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
}
.lqp-pick-card:hover { border-color: var(--accent); }
.lqp-pick-card.is-sel { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--card)); }
.lqp-pick-card-main { flex: 1; min-width: 0; }
.lqp-pick-card-text { font-size: 0.86rem; color: var(--text); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.lqp-pick-card-meta { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 0.3rem; font-size: 0.72rem; color: var(--text3); }
.lqp-flag { color: var(--yellow, #f59e0b); font-weight: 600; }
.lqp-pick-toggle {
  flex-shrink: 0;
  width: 2rem; height: 2rem;
  display: grid; place-items: center;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text2);
  font-weight: 700;
}
.lqp-pick-toggle.is-sel { background: var(--accent); color: #fff; border-color: var(--accent); }
.lqp-pick-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
}
#lqp-pick-count { font-size: 0.85rem; color: var(--text2); }

/* ── Past-quiz results modal ── */
.lq-results-overlay {
  position: fixed;
  inset: 0;
  z-index: 1300;
  display: none;
  place-items: center;
  background: rgba(0, 0, 0, 0.5);
  padding: 1.5rem;
}
.lq-results-overlay.open { display: grid; }
.lq-results-box {
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.lq-results-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.lq-results-title { font-family: var(--display); font-weight: 700; font-size: 1.05rem; }
.lq-results-body { padding: 1.25rem; overflow-y: auto; }
.lq-results-loading { padding: 2rem; text-align: center; color: var(--text3); }
.lq-results-section-title {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text3); margin: 1.25rem 0 0.6rem;
}
.lq-results-section-title:first-child { margin-top: 0; }
.lq-rq { margin-bottom: 0.85rem; }
.lq-rq-top { display: flex; justify-content: space-between; gap: 0.75rem; font-size: 0.85rem; margin-bottom: 0.3rem; }
.lq-rq-prompt { color: var(--text); }
.lq-rq-stat { font-family: var(--mono); color: var(--text2); flex-shrink: 0; }
.lq-rq-bar { height: 6px; border-radius: 3px; background: var(--border); overflow: hidden; }
.lq-rq-bar-fill { height: 100%; background: var(--accent); }

/* ── Student answer review (per question) ── */
.lq-myscore {
  text-align: center;
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--text2);
  margin-bottom: 0.5rem;
}
.lq-myscore strong { color: var(--accent); font-size: 1.1rem; }
.lq-rev-q { margin-bottom: 1.25rem; }
.lq-rev-prompt { font-weight: 600; margin-bottom: 0.5rem; font-size: 0.9rem; }
.lq-rev-badge { font-size: 0.68rem; font-weight: 700; border-radius: 999px; padding: 0.05rem 0.45rem; margin-left: 0.35rem; }
.lq-rev-badge.ok  { background: color-mix(in srgb, var(--green) 18%, var(--card)); color: var(--green); }
.lq-rev-badge.bad { background: color-mix(in srgb, var(--red) 16%, var(--card));   color: var(--red); }
.lq-rev-choice {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
}
.lq-rev-choice.is-correct { border-color: var(--green); background: color-mix(in srgb, var(--green) 12%, var(--card)); }
.lq-rev-choice.is-wrong   { border-color: var(--red);   background: color-mix(in srgb, var(--red) 10%, var(--card)); }
.lq-rev-key { font-family: var(--mono); font-weight: 700; width: 1.4rem; flex-shrink: 0; color: var(--text2); }
.lq-rev-text { flex: 1; }
.lq-rev-mark { font-weight: 700; flex-shrink: 0; }
.lq-rev-choice.is-correct .lq-rev-mark { color: var(--green); }
.lq-rev-choice.is-wrong .lq-rev-mark { color: var(--red); }
.lq-rev-noans { font-size: 0.78rem; color: var(--text3); margin-top: 0.3rem; }

/* ── Past-sessions list (teacher + student) ── */
.lq-history-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  width: 100%;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  margin-bottom: 0.6rem;
  cursor: pointer;
  color: var(--text);
}
.lq-history-row:hover { border-color: var(--accent); }
.lq-history-main { flex: 1; min-width: 0; }
.lq-history-title { font-weight: 600; }
.lq-history-meta { font-size: 0.78rem; color: var(--text2); margin-top: 0.15rem; }
.lq-history-score { font-family: var(--mono); font-weight: 700; color: var(--accent); flex-shrink: 0; text-align: right; }
.lq-history-empty { padding: 2rem; text-align: center; color: var(--text2); font-size: 0.88rem; }

/* ── Buttons (self-contained so they render in both portals) ── */
.lq-btn {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 0.6rem 1.4rem;
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.15s, background 0.15s;
}
.lq-btn:hover:not(:disabled) { filter: brightness(1.08); }
.lq-btn:disabled { opacity: 0.6; cursor: default; }
.lq-btn-outline {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
}

/* ── Number stepper (seconds/question) ── */
.lq-stepper {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--card);
  height: 44px;
}
.lq-step-btn {
  width: 40px;
  flex-shrink: 0;
  background: var(--bg);
  color: var(--text);
  border: none;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s;
}
.lq-step-btn:hover { background: var(--border); }
.lq-step-btn:active { background: var(--accent); color: #fff; }
.lq-step-input {
  flex: 1;
  min-width: 0;
  text-align: center;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 600;
  outline: none;
  -moz-appearance: textfield;
  appearance: textfield;
}
.lq-step-input::-webkit-outer-spin-button,
.lq-step-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

/* ── Source / mode toggles (teacher setup) ── */
.lq-source-btn.active,
.lq-mode-btn.active,
.lq-progress-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ── PIN + share-link block (host stage) ── */
.lq-pin-block {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin: 0 auto 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem 1.5rem;
  max-width: 560px;
}
.lq-pin-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text3); font-weight: 700; }
.lq-pin-value { font-family: var(--mono); font-size: 2rem; font-weight: 700; letter-spacing: 0.2em; color: var(--accent); }
.lq-pin-link { display: flex; align-items: center; gap: 0.5rem; }

/* ── Full-screen stage (host control + student play) ── */
.lq-stage {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: none;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  padding: clamp(1rem, 3vw, 2.5rem);
  overflow-y: auto;
}
.lq-stage.open { display: flex; }

.lq-stage-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.lq-stage-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1rem, 2.4vw, 1.4rem);
}
.lq-progress {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text2);
}
.lq-timer {
  font-family: var(--mono);
  font-weight: 800;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, var(--card));
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--border));
  border-radius: 999px;
  padding: 0.3rem 0.95rem;
  min-width: 3.5rem;
  text-align: center;
}
.lq-timer.is-low {
  color: #fff;
  background: var(--red);
  border-color: var(--red);
  animation: lq-timer-pulse 1s ease-in-out infinite;
}
@keyframes lq-timer-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.14); }
}
#lq-bank-summary a { color: var(--accent); font-weight: 600; text-decoration: none; }
#lq-bank-summary a:hover { text-decoration: underline; }
.lq-close {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  font-size: 0.85rem;
}

/* ── Lobby ── */
.lq-lobby { text-align: center; margin: auto 0; }
.lq-lobby .lq-btn { margin-top: 1.5rem; }
.lq-lobby-code {
  font-family: var(--mono);
  font-size: clamp(1.5rem, 6vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin: 0.5rem 0 1.5rem;
}
.lq-participants {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  max-width: 700px;
  margin: 0 auto 2rem;
}
.lq-chip {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
}

/* ── Question + choices ── */
.lq-question {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.2rem, 3.4vw, 2.2rem);
  line-height: 1.3;
  text-align: center;
  max-width: 900px;
  margin: 1rem auto 2rem;
}
.lq-question img { max-width: min(100%, 480px); border-radius: 12px; margin-top: 1rem; }

.lq-choices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
}
.lq-choice {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-align: left;
  background: var(--card);
  color: var(--text);
  border: 2px solid var(--border);
  border-radius: 14px;
  padding: 1.1rem 1.25rem;
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s, border-color 0.15s, background 0.15s;
}
.lq-choice:hover:not(:disabled) { transform: translateY(-2px); border-color: var(--accent); }
.lq-choice:disabled { cursor: default; opacity: 0.85; }
.lq-choice-key {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-family: var(--mono);
  font-weight: 700;
}
.lq-choice.is-selected { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, var(--card)); }
.lq-choice.is-correct  { border-color: var(--green); background: color-mix(in srgb, var(--green) 16%, var(--card)); }
.lq-choice.is-wrong    { border-color: var(--red);   background: color-mix(in srgb, var(--red) 14%, var(--card)); }
.lq-choice-count {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text2);
}

/* ── Host roster side panel ── */
.lqh-roster {
  position: fixed;
  top: 5.5rem;
  right: clamp(1rem, 3vw, 2.5rem);
  width: 240px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  z-index: 1;
}
.lqh-roster-head {
  padding: 0.75rem 1rem;
  font-weight: 700;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.lqh-roster-list { overflow-y: auto; padding: 0.4rem; }
.lqh-roster-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.6rem;
  border-radius: 8px;
  font-size: 0.85rem;
}
.lqh-roster-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--text3);
  flex-shrink: 0;
}
.lqh-roster-row.is-on .lqh-roster-dot { background: var(--green); }
.lqh-roster-row.is-on .lqh-roster-name { font-weight: 600; }
.lqh-roster-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lqh-roster-count { font-family: var(--mono); font-size: 0.75rem; color: var(--text3); flex-shrink: 0; }
.lqh-roster-sub {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text3);
  padding: 0.6rem 0.6rem 0.3rem;
  border-top: 1px solid var(--border);
  margin-top: 0.3rem;
}
.lqh-roster-empty { padding: 1rem; color: var(--text3); font-size: 0.82rem; text-align: center; }

@media (max-width: 820px) {
  .lqh-roster {
    position: static;
    width: auto;
    max-height: 180px;
    margin: 0 auto 1.25rem;
    max-width: 900px;
  }
}

/* ── Host controls ── */
.lq-controls {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}
.lq-responses {
  text-align: center;
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--text2);
  margin-top: 1.25rem;
}

/* ── Feedback (student) ── */
.lq-feedback {
  text-align: center;
  margin: auto 0;
}
.lq-feedback-icon { font-size: clamp(3rem, 12vw, 5rem); line-height: 1; }
.lq-feedback-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.2rem, 4vw, 2rem);
  margin-top: 0.75rem;
}
.lq-feedback-points { font-family: var(--mono); color: var(--accent); font-size: 1.1rem; margin-top: 0.5rem; }

/* ── Leaderboard / podium ── */
.lq-board { max-width: 560px; margin: 1.5rem auto 0; width: 100%; }
.lq-board-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
}
.lq-board-rank {
  font-family: var(--mono);
  font-weight: 700;
  width: 1.8rem;
  text-align: center;
  color: var(--text2);
}
.lq-board-row:nth-child(1) .lq-board-rank { color: #f59e0b; }
.lq-board-name { font-weight: 600; flex: 1; }
.lq-board-score { font-family: var(--mono); font-weight: 700; color: var(--accent); }

/* ── Student "Live Now" banner ── */
.lq-live-banner {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: color-mix(in srgb, var(--accent) 12%, var(--card));
  border: 1px solid var(--accent);
  border-radius: 14px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}
.lq-live-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--red);
  flex-shrink: 0;
  animation: lq-pulse 1.2s infinite;
}
@keyframes lq-pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--red) 60%, transparent); }
  70%  { box-shadow: 0 0 0 10px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.lq-live-text { flex: 1; }
.lq-live-title { font-weight: 700; }
.lq-live-sub { font-size: 0.82rem; color: var(--text2); }

@media (max-width: 600px) {
  .lq-choices { grid-template-columns: 1fr; }
}