/* ===========================================
   Live Reactions - Premium Light Theme
   Clean, modern, responsive design
   =========================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Colors - Premium Light Theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #f1f5f9;
  --bg-button: #ffffff;
  --bg-button-hover: #f8fafc;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.25);
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.2);
  --error: #ef4444;
  --border: rgba(0, 0, 0, 0.08);
  --border-light: rgba(0, 0, 0, 0.06);

  /* Premium shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
  --shadow-button: 0 2px 8px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-button-hover: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-button-pressed: inset 0 2px 4px rgba(0, 0, 0, 0.06);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Border radius */
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(145deg, #f0f4f8 0%, #e2e8f0 100%);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Container */
.container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  padding-top: max(var(--spacing-md), env(safe-area-inset-top));
  padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom));
}

/* Screens */
.screen {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  animation: fadeIn 0.4s ease;
}

.screen.hidden {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===========================================
   Connect Screen
   =========================================== */

#connect-screen {
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: var(--spacing-xl);
  padding: var(--spacing-xl);
}

.logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.logo-emoji {
  font-size: 4.5rem;
  filter: drop-shadow(0 8px 24px var(--accent-glow));
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-10px) scale(1.03); }
}

.logo h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 400;
}

.room-input-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  width: 100%;
  max-width: 320px;
}

#room-code-input {
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-md);
  font-size: 1.25rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 600;
  background: var(--bg-secondary);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

#room-code-input::placeholder {
  color: var(--text-muted);
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
}

#room-code-input:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-md), 0 0 0 4px var(--accent-glow);
}

.join-button {
  padding: var(--spacing-lg) var(--spacing-md);
  font-size: 1.1rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 4px 16px var(--accent-glow);
  transition: all 0.3s ease;
}

.join-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.join-button:active {
  transform: translateY(0);
}

.join-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.hint {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ===========================================
   Reactions Screen - Card Container
   =========================================== */

#reactions-screen {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-lg);
  gap: var(--spacing-md);
  overflow: hidden;
}

/* Room Header */
.room-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xs) 0 var(--spacing-sm);
  gap: var(--spacing-sm);
}

.room-badge {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
  flex: 1;
  justify-content: center;
}

.badge-separator {
  color: var(--text-muted);
  margin: 0 2px;
}

#badge-status {
  color: var(--success);
  font-weight: 500;
}

#badge-status.disconnected {
  color: var(--error);
}

/* Leave Button - Always visible */
.leave-button {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.85rem;
  font-weight: 600;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-full);
  color: var(--error);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.leave-button:hover {
  background: #fee2e2;
  border-color: #fca5a5;
}

.leave-button:active {
  transform: scale(0.98);
}

/* ===========================================
   Workshop Pace Section (First)
   =========================================== */

.pace-section {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--border);
}

.pace-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}

.pace-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.pace-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: var(--spacing-sm);
  background: var(--bg-button);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: var(--shadow-button);
  transition: all 0.2s ease;
  -webkit-user-select: none;
  user-select: none;
}

.pace-btn:hover {
  background: var(--bg-button-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-button-hover);
}

.pace-btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-button-pressed);
}

.pace-btn.pressed {
  background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.pace-btn-success.pressed {
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
  border-color: var(--success);
  box-shadow: 0 0 0 3px var(--success-glow);
}

.pace-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.pace-label {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* ===========================================
   Emoji Grid
   =========================================== */

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
}

.emoji-btn {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md);
  background: var(--bg-button);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  box-shadow: var(--shadow-button);
  transition: all 0.2s ease;
  -webkit-user-select: none;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.emoji-btn .emoji {
  font-size: 2.25rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.emoji-btn .label {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.emoji-btn:hover {
  background: var(--bg-button-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-button-hover);
}

.emoji-btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-button-pressed);
}

.emoji-btn:active .emoji {
  transform: scale(1.2);
}

.emoji-btn.pressed {
  background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ===========================================
   Ask a Question Section
   =========================================== */

.question-section {
  padding: var(--spacing-md) 0;
  border-top: 1px solid var(--border);
}

.question-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}

.question-input-group {
  display: flex;
  gap: var(--spacing-xs);
}

.question-input {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.95rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.question-input::placeholder {
  color: var(--text-muted);
}

.question-input:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm), 0 0 0 3px var(--accent-glow);
}

.send-question-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.send-question-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.35);
}

.send-question-btn:active {
  transform: translateY(0);
}

.send-question-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.send-icon {
  font-size: 1.1rem;
}

.question-status {
  font-size: 0.8rem;
  text-align: center;
  margin-top: var(--spacing-xs);
  min-height: 1.2em;
}

.question-status.success {
  color: var(--success);
}

.question-status.error {
  color: var(--error);
}

/* ===========================================
   Status Bar & Hints
   =========================================== */

.status-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) 0;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: all 0.3s ease;
}

.status-dot.connected {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.status-dot.disconnected {
  background: var(--error);
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.5);
  animation: blink 1s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.tap-hint {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: var(--spacing-xs) 0;
}

/* ===========================================
   Feedback Section
   =========================================== */

.feedback-section {
  padding-top: var(--spacing-sm);
  text-align: center;
}

.feedback-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 1px solid #fcd34d;
  border-radius: var(--radius-full);
  color: #92400e;
  cursor: pointer;
  box-shadow: var(--shadow-button);
  transition: all 0.2s ease;
  font-size: 0.85rem;
  font-weight: 600;
}

.feedback-toggle:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-button-hover);
}

.feedback-toggle:active {
  transform: translateY(0);
}

.feedback-toggle-icon {
  font-size: 1rem;
}

/* ===========================================
   Sent Animation Overlay
   =========================================== */

.sent-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 100;
}

.sent-overlay.hidden {
  display: none;
}

.sent-emoji {
  font-size: 7rem;
  animation: sentPop 0.7s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
  filter: drop-shadow(0 8px 32px rgba(0, 0, 0, 0.2));
}

@keyframes sentPop {
  0% {
    opacity: 0;
    transform: scale(0.3) rotate(-10deg);
  }
  40% {
    opacity: 1;
    transform: scale(1.3) rotate(5deg);
  }
  70% {
    transform: scale(1) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: scale(1.6) translateY(-30px);
  }
}

/* ===========================================
   Feedback Modal
   =========================================== */

.feedback-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  z-index: 200;
  animation: fadeIn 0.3s ease;
  padding: var(--spacing-md);
}

.feedback-modal.hidden {
  display: none;
}

.feedback-modal-content {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  width: 100%;
  max-width: 380px;
  text-align: center;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.feedback-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  background: var(--bg-button);
  color: var(--text-secondary);
  font-size: 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: var(--shadow-button);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feedback-close:hover {
  background: #fef2f2;
  border-color: #fecaca;
  color: var(--error);
}

.feedback-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

/* Star Rating */
.star-rating {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.star {
  font-size: 2.5rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-user-select: none;
  user-select: none;
}

.star:hover,
.star.hover {
  color: #fbbf24;
  transform: scale(1.2);
  filter: drop-shadow(0 0 8px rgba(251, 191, 36, 0.5));
}

.star.active {
  color: #fbbf24;
  filter: drop-shadow(0 0 6px rgba(251, 191, 36, 0.4));
}

.rating-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  min-height: 1.3em;
  font-weight: 500;
}

/* Feedback Text Area */
.feedback-text-container {
  text-align: left;
  margin-bottom: var(--spacing-lg);
}

.feedback-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.feedback-textarea {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 1rem;
  font-family: inherit;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  resize: vertical;
  min-height: 100px;
  outline: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.feedback-textarea::placeholder {
  color: var(--text-muted);
}

.feedback-textarea:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm), 0 0 0 3px var(--accent-glow);
}

.char-count {
  display: block;
  text-align: right;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* Submit Button */
.submit-feedback {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 4px 16px var(--accent-glow);
  transition: all 0.3s ease;
}

.submit-feedback:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.submit-feedback:active:not(:disabled) {
  transform: translateY(0);
}

.submit-feedback:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

.feedback-status {
  font-size: 0.9rem;
  margin-top: var(--spacing-md);
  min-height: 1.3em;
  font-weight: 500;
}

.feedback-status.success {
  color: var(--success);
}

.feedback-status.error {
  color: var(--error);
}

/* ===========================================
   Responsive - Mobile First
   =========================================== */

/* Small phones */
@media (max-width: 360px) {
  :root {
    --spacing-sm: 0.5rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
  }

  #reactions-screen {
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .room-header {
    flex-direction: column;
    gap: var(--spacing-xs);
  }

  .room-badge {
    width: 100%;
    font-size: 0.8rem;
  }

  .leave-button {
    width: 100%;
    text-align: center;
  }

  .emoji-btn .emoji {
    font-size: 1.75rem;
  }

  .emoji-btn .label {
    font-size: 0.55rem;
  }

  .pace-icon {
    font-size: 1.25rem;
  }

  .pace-label {
    font-size: 0.55rem;
  }
}

/* Medium phones */
@media (min-width: 361px) and (max-width: 479px) {
  .emoji-btn .emoji {
    font-size: 2rem;
  }
}

/* Large phones and small tablets */
@media (min-width: 480px) {
  #reactions-screen {
    padding: var(--spacing-xl);
  }

  .emoji-btn .emoji {
    font-size: 2.5rem;
  }

  .emoji-btn .label {
    font-size: 0.7rem;
  }

  .pace-icon {
    font-size: 1.75rem;
  }

  .pace-label {
    font-size: 0.7rem;
  }
}

/* Tablets and up */
@media (min-width: 600px) {
  :root {
    --spacing-sm: 1rem;
    --spacing-md: 1.25rem;
    --spacing-lg: 1.75rem;
  }

  #reactions-screen {
    max-width: 480px;
  }

  .emoji-btn .emoji {
    font-size: 3rem;
  }
}

/* ===========================================
   Landscape Mode (Mobile)
   =========================================== */

@media (orientation: landscape) and (max-height: 500px) {
  .container {
    padding: var(--spacing-sm);
    justify-content: flex-start;
  }

  #reactions-screen {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    max-width: 100%;
  }

  .room-header {
    width: 100%;
    padding: 0 0 var(--spacing-xs);
  }

  .emoji-grid {
    flex: 1;
    min-width: 200px;
  }

  .emoji-btn {
    aspect-ratio: auto;
    padding: var(--spacing-sm);
  }

  .emoji-btn .emoji {
    font-size: 1.5rem;
  }

  .emoji-btn .label {
    display: none;
  }

  .pace-section {
    flex: 1;
    min-width: 150px;
    border-bottom: none;
    border-left: 1px solid var(--border);
    padding: 0 0 0 var(--spacing-md);
  }

  .pace-buttons {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }

  .pace-btn {
    flex-direction: row;
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  .pace-icon {
    font-size: 1.25rem;
  }

  .question-section,
  .status-bar,
  .feedback-section,
  .tap-hint {
    display: none;
  }
}

/* ===========================================
   Reduced Motion
   =========================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}