/* ============================================================
   QRTask Participant App Styles
   ============================================================ */

/* ---- App Shell ---- */
#app {
  height: 100dvh;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  background: var(--color-neutral-50);
}

/* ---- Header ---- */
.participant-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--color-primary);
  color: var(--color-white);
  flex-shrink: 0;
  /* Safe area for notched phones */
  padding-top: calc(0.75rem + env(safe-area-inset-top));
  min-height: 56px;
  position: relative;
  z-index: 10;
}
.participant-header-left { display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; }
.participant-header-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}
.participant-header-subtitle {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.2;
}
.participant-header-right { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
.header-sync-btn {
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: var(--radius-full);
  color: var(--color-white);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.15s;
}
.header-sync-btn:hover { background: rgba(255,255,255,0.3); }
.header-sync-btn.syncing { animation: spin 1s linear infinite; }
.header-logout-btn {
  background: rgba(255,255,255,0.15);
  border: none;
  border-radius: var(--radius-full);
  color: var(--color-white);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.15s;
}
.header-logout-btn:hover { background: rgba(220,38,38,0.5); }

/* ---- Main content area ---- */
.participant-main {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  position: relative;
}

/* ---- Bottom navigation ---- */
.participant-nav {
  display: flex;
  background: var(--color-white);
  border-top: 1px solid var(--color-neutral-200);
  flex-shrink: 0;
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: 0 -2px 10px rgba(0,0,0,0.06);
}
.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.25rem;
  min-height: 56px;
  cursor: pointer;
  border: none;
  background: none;
  color: var(--color-neutral-400);
  transition: color 0.15s;
  gap: 0.2rem;
  -webkit-tap-highlight-color: transparent;
  position: relative;
}
.nav-item:hover { color: var(--color-neutral-700); }
.nav-item.active { color: var(--color-primary); }
.nav-item-icon {
  font-size: 1.375rem;
  line-height: 1;
  transition: transform 0.15s;
}
.nav-item.active .nav-item-icon { transform: scale(1.1); }
.nav-item-label { font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.02em; }
.nav-badge {
  position: absolute;
  top: 0.25rem;
  right: calc(50% - 14px);
  min-width: 16px;
  height: 16px;
  background: var(--color-danger);
  color: white;
  border-radius: var(--radius-full);
  font-size: 0.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
}

/* ---- Login / Register views ---- */
.auth-view {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  padding-top: calc(1.5rem + env(safe-area-inset-top));
  padding-bottom: calc(1.5rem + env(safe-area-inset-bottom));
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-white) 60%);
}
.auth-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  border: 1px solid var(--color-neutral-200);
}
.auth-logo {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}
.auth-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}
.auth-subtitle {
  font-size: 0.9rem;
  color: var(--color-neutral-500);
  margin-bottom: 1.5rem;
}
.auth-form { display: flex; flex-direction: column; gap: 0; }
.auth-link {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--color-neutral-500);
}
.auth-link a { color: var(--color-primary); font-weight: 500; }

/* ---- Info / Event view ---- */
.event-info-view {
  padding: 1.25rem;
}
.event-info-header {
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-neutral-200);
}
.event-info-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}
.event-info-body {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-neutral-700);
}

/* ---- Task list ---- */
.task-list-view { padding: 0; }
.task-list-header {
  padding: 1rem 1rem 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-neutral-800);
}

.area-group { margin-bottom: 0.25rem; }
.area-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem 0.375rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-neutral-500);
  background: var(--color-neutral-100);
  border-bottom: 1px solid var(--color-neutral-200);
}
.area-header-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.task-list { list-style: none; padding: 0; margin: 0; }

.task-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.875rem 1rem;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-neutral-100);
  border-left: 4px solid var(--color-neutral-200);
  cursor: pointer;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
  position: relative;
}
.task-item:hover { background: var(--color-neutral-50); }
.task-item:active { background: var(--color-neutral-100); }

.task-item-locked   { border-left-color: var(--color-neutral-300); }
.task-item-unlocked { border-left-color: var(--color-primary); }
.task-item-completed { border-left-color: var(--color-success); }

.task-item-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-neutral-100);
}
.task-item-unlocked .task-item-icon  { background: var(--color-primary-light); }
.task-item-completed .task-item-icon { background: var(--color-success-light); }

.task-item-body { flex: 1; min-width: 0; }
.task-item-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-neutral-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.2rem;
}
.task-item-meta {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  flex-wrap: wrap;
}

.task-item-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
  flex-shrink: 0;
}
.task-item-points {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-neutral-700);
}
.task-item-points-label { font-size: 0.6875rem; color: var(--color-neutral-400); }
.task-item-arrow { color: var(--color-neutral-300); font-size: 0.875rem; }

/* ---- Score view ---- */
.score-view { padding: 1.25rem; }
.score-card {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-darker) 100%);
  border-radius: var(--radius-xl);
  padding: 2rem;
  color: var(--color-white);
  text-align: center;
  margin-bottom: 1.25rem;
  box-shadow: 0 8px 30px rgba(99,102,241,0.3);
}
.score-card-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  margin-bottom: 0.5rem;
}
.score-card-points {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.25rem;
}
.score-card-unit { font-size: 1.125rem; color: rgba(255,255,255,0.75); }
.score-card-group { font-size: 0.875rem; color: rgba(255,255,255,0.6); margin-top: 0.5rem; }

.leaderboard-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-neutral-500);
  margin-bottom: 0.75rem;
}
.leaderboard-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.leaderboard-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-neutral-200);
  box-shadow: var(--shadow-sm);
}
.leaderboard-item.my-group { border-color: var(--color-primary); background: var(--color-primary-light); }
.leaderboard-rank {
  width: 28px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-neutral-500);
  text-align: center;
  flex-shrink: 0;
}
.leaderboard-rank.top-3 { color: var(--color-warning); }
.leaderboard-name { flex: 1; font-weight: 600; color: var(--color-neutral-800); font-size: 0.9375rem; }
.leaderboard-pts  { font-size: 1rem; font-weight: 700; color: var(--color-primary); }

/* ---- Scanner view ---- */
.scanner-view {
  position: relative;
  width: 100%;
  height: 100%;
  background: #000;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
#scanner-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.scanner-overlay {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  width: 100%;
  padding: 2rem 1rem;
}
.scanner-frame {
  position: relative;
  width: min(260px, 70vw);
  height: min(260px, 70vw);
}
.scanner-corner {
  position: absolute;
  width: 40px;
  height: 40px;
  border-color: var(--color-white);
  border-style: solid;
}
.scanner-corner-tl { top: 0; left: 0; border-width: 4px 0 0 4px; border-radius: 4px 0 0 0; }
.scanner-corner-tr { top: 0; right: 0; border-width: 4px 4px 0 0; border-radius: 0 4px 0 0; }
.scanner-corner-bl { bottom: 0; left: 0; border-width: 0 0 4px 4px; border-radius: 0 0 0 4px; }
.scanner-corner-br { bottom: 0; right: 0; border-width: 0 4px 4px 0; border-radius: 0 0 4px 0; }
.scanner-line {
  position: absolute;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(99,102,241,0.8), var(--color-primary), rgba(99,102,241,0.8), transparent);
  animation: scanner-scan 2s ease-in-out infinite;
  border-radius: 2px;
}
@keyframes scanner-scan {
  0%   { top: 10%; opacity: 1; }
  50%  { top: 88%; opacity: 0.8; }
  100% { top: 10%; opacity: 1; }
}
.scanner-hint {
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  text-shadow: 0 1px 4px rgba(0,0,0,0.6);
  background: rgba(0,0,0,0.4);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
}
.scanner-result {
  position: absolute;
  bottom: 6rem;
  left: 1rem;
  right: 1rem;
  z-index: 3;
  padding: 1rem;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  text-align: center;
  animation: slide-up 0.25s ease;
}
.scanner-no-camera {
  text-align: center;
  color: var(--color-white);
  padding: 2rem;
}
.scanner-no-camera p { color: rgba(255,255,255,0.8); margin-top: 0.5rem; }

/* ---- Card Player ---- */
.card-player {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-white);
  position: relative;
}

.card-player-header {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-neutral-100);
  gap: 0.75rem;
  flex-shrink: 0;
}
.card-player-back {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-neutral-500);
  font-size: 1.25rem;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
}
.card-player-back:hover { background: var(--color-neutral-100); }
.card-player-task-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-neutral-800);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.625rem 1rem;
  flex-shrink: 0;
}
.card-progress-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-neutral-200);
  transition: all 0.2s ease;
}
.card-progress-dot.completed { background: var(--color-success); }
.card-progress-dot.active    { background: var(--color-primary); width: 24px; border-radius: 4px; }

.card-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 1.25rem;
  position: relative;
}

.card-nav {
  display: flex;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  padding-bottom: calc(0.875rem + env(safe-area-inset-bottom));
  border-top: 1px solid var(--color-neutral-100);
  flex-shrink: 0;
  background: var(--color-white);
}
.card-nav .btn { flex: 1; }

/* Card type: HTML content */
.card-html { font-size: 0.9375rem; line-height: 1.7; color: var(--color-neutral-700); }
.card-html img { border-radius: var(--radius-md); margin: 0.75rem 0; }

/* Card type: Video */
.card-video-player { width: 100%; border-radius: var(--radius-lg); overflow: hidden; background: #000; margin-bottom: 1rem; }
.card-video-player video { width: 100%; display: block; max-height: 50vh; }

/* Card type: Audio */
.card-audio-player {
  background: linear-gradient(135deg, #e0e7ff 0%, #f0f4ff 100%);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  margin-bottom: 1rem;
}
.card-audio-player audio { width: 100%; margin-top: 1rem; }
.card-audio-icon { font-size: 3rem; margin-bottom: 0.75rem; }
.card-audio-title { font-weight: 600; color: var(--color-neutral-800); margin-bottom: 0.5rem; }
.card-audio-transcript {
  margin-top: 1.25rem;
  padding: 1rem;
  background: var(--color-white);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--color-neutral-600);
  text-align: left;
  line-height: 1.6;
  border: 1px solid var(--color-neutral-200);
}

/* Card type: Quiz */
.card-quiz-question {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-neutral-900);
  margin-bottom: 1.25rem;
  line-height: 1.4;
}
.card-quiz-options { display: flex; flex-direction: column; gap: 0.625rem; margin-bottom: 1.25rem; }
.card-quiz-option {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.875rem 1rem;
  border: 2px solid var(--color-neutral-200);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.15s ease;
  min-height: 56px;
  background: var(--color-white);
  -webkit-tap-highlight-color: transparent;
}
.card-quiz-option:hover:not(.disabled) { border-color: var(--color-primary); background: var(--color-primary-light); }
.card-quiz-option.selected { border-color: var(--color-primary); background: var(--color-primary-light); }
.card-quiz-option.correct  { border-color: var(--color-success); background: var(--color-success-light); }
.card-quiz-option.incorrect { border-color: var(--color-danger);  background: var(--color-danger-light); }
.card-quiz-option.disabled  { cursor: default; }
.card-quiz-option-radio {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--color-neutral-300);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.card-quiz-option.selected .card-quiz-option-radio { border-color: var(--color-primary); background: var(--color-primary); }
.card-quiz-option.correct  .card-quiz-option-radio { border-color: var(--color-success); background: var(--color-success); }
.card-quiz-option.incorrect .card-quiz-option-radio { border-color: var(--color-danger);  background: var(--color-danger); }
.card-quiz-option-radio-dot {
  width: 8px; height: 8px; border-radius: 50%; background: white;
  opacity: 0; transition: opacity 0.15s;
}
.card-quiz-option.selected  .card-quiz-option-radio-dot,
.card-quiz-option.correct   .card-quiz-option-radio-dot,
.card-quiz-option.incorrect .card-quiz-option-radio-dot { opacity: 1; }
.card-quiz-option-text { font-size: 0.9375rem; color: var(--color-neutral-800); font-weight: 500; }
.card-quiz-option-icon { margin-left: auto; font-size: 1.125rem; flex-shrink: 0; }
.card-quiz-feedback {
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1rem;
  animation: slide-down 0.2s ease;
}
.card-quiz-feedback.correct  { background: var(--color-success-light); color: #065f46; }
.card-quiz-feedback.incorrect { background: var(--color-danger-light);  color: #991b1b; }

/* Card type: Form */
.card-form .form-group { margin-bottom: 1rem; }

/* Card type: Code gate */
.card-code-gate { text-align: center; padding: 1rem 0; }
.card-code-gate-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-neutral-900);
  margin-bottom: 0.5rem;
}
.card-code-gate-subtitle { font-size: 0.9rem; color: var(--color-neutral-500); margin-bottom: 1.5rem; }
.card-code-input {
  width: 100%;
  max-width: 280px;
  text-align: center;
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 0.875rem 1rem;
  border: 2px solid var(--color-neutral-300);
  border-radius: var(--radius-lg);
  font-family: 'Courier New', Courier, monospace;
  margin: 0 auto;
  display: block;
  color: var(--color-neutral-900);
}
.card-code-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
  outline: none;
}
.card-code-hint-btn {
  margin-top: 1rem;
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 500;
  text-decoration: underline;
}
.card-code-hint-text {
  margin-top: 0.875rem;
  padding: 0.875rem 1rem;
  background: var(--color-warning-light);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: #92400e;
  animation: slide-down 0.2s ease;
}
.card-code-feedback { margin-top: 0.875rem; font-size: 0.9rem; font-weight: 500; }
.card-code-feedback.correct  { color: var(--color-success); }
.card-code-feedback.incorrect { color: var(--color-danger); }

/* Card type: Final state */
.card-final-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  text-align: center;
  padding: 2rem;
  gap: 1.25rem;
}
.final-state-checkmark {
  width: 80px;
  height: 80px;
  background: var(--color-success-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  animation: pulse-scale 0.6s ease, fade-slide-up 0.5s ease;
}
.final-state-title {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-neutral-900);
}
.final-state-message {
  font-size: 0.9375rem;
  color: var(--color-neutral-600);
  max-width: 320px;
  line-height: 1.6;
}
.final-state-points {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
}

/* ---- Waiting overlay (group sync) ---- */
.waiting-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.92);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  z-index: 10;
  text-align: center;
  padding: 2rem;
  backdrop-filter: blur(4px);
}
.waiting-overlay-title { font-weight: 700; font-size: 1.0625rem; color: var(--color-neutral-800); }
.waiting-overlay-subtitle { font-size: 0.875rem; color: var(--color-neutral-500); }

/* ---- Notification modal ---- */
.notification-modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  z-index: var(--z-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fade-in 0.2s ease;
}
.notification-modal-box {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  max-width: 420px;
  width: 100%;
  padding: 1.75rem;
  text-align: center;
  animation: slide-up 0.25s ease;
}
.notification-modal-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.notification-modal-title { font-size: 1.125rem; font-weight: 700; color: var(--color-neutral-900); margin-bottom: 0.5rem; }
.notification-modal-body  { font-size: 0.9375rem; color: var(--color-neutral-600); margin-bottom: 1.5rem; line-height: 1.6; }