/* ==========================================
   NIKO NIKO - Style
   ========================================== */

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

:root {
  --bg-primary: #0f0f23;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #252547;
  --text-primary: #ffffff;
  --text-secondary: #b8b8d1;
  --text-muted: #7a7a99;
  --accent: #667eea;
  --accent-hover: #7c8ff5;
  --success: #4ade80;
  --warning: #fbbf24;
  --danger: #f87171;
  --positif: #4ade80;
  --fun: #f97316;
  --neutre: #94a3b8;
  --difficile: #60a5fa;
  --intense: #f87171;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-positive: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
  --gradient-fun: linear-gradient(135deg, #fb923c 0%, #f97316 100%);
  --gradient-neutre: linear-gradient(135deg, #94a3b8 0%, #64748b 100%);
  --gradient-difficile: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
  --gradient-intense: linear-gradient(135deg, #f87171 0%, #ef4444 100%);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background 1s ease;
}

body.party-mode {
  animation: rainbowBackground 8s linear infinite;
  background: linear-gradient(135deg, #ff6b6b, #feca57, #48dbfb, #ff9ff3, #54a0ff, #5f27cd, #00d2d3);
  background-size: 400% 400%;
}

@keyframes rainbowBackground {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Canvas confettis */
#confettiCanvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 9998;
}

/* Screens */
.screen {
  display: none;
  min-height: 100vh;
  padding: 20px;
}
.screen.active { display: block; }
.hidden { display: none !important; }

/* ============ HOME SCREEN ============ */
.home-container {
  max-width: 600px;
  margin: 40px auto;
  text-align: center;
  padding: 40px 20px;
}
.home-logo {
  font-size: 5rem;
  margin-bottom: 20px;
  animation: bounce 2s ease-in-out infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}
.home-title {
  font-size: 3.5rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
  letter-spacing: 2px;
}
.home-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 50px;
}
.home-buttons {
  display: grid;
  gap: 20px;
  margin-bottom: 40px;
}
.home-btn {
  background: var(--bg-secondary);
  border: 2px solid var(--bg-tertiary);
  border-radius: var(--radius-lg);
  padding: 30px;
  color: white;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.home-btn:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.home-btn-icon { font-size: 3rem; }
.home-btn-title { font-size: 1.3rem; font-weight: 700; }
.home-btn-desc { color: var(--text-secondary); font-size: 0.9rem; }
.home-btn-admin:hover { background: linear-gradient(135deg, #667eea22, #764ba222); }
.home-btn-participant:hover { background: linear-gradient(135deg, #4ade8022, #22c55e22); }

.home-footer {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* ============ BUTTONS ============ */
.btn-primary, .btn-secondary, .btn-success, .btn-warning, .btn-ghost {
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.btn-primary {
  background: var(--gradient-primary);
  color: white;
}
.btn-primary:hover:not(:disabled) { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-secondary {
  background: var(--bg-tertiary);
  color: white;
  border: 1px solid var(--bg-tertiary);
}
.btn-secondary:hover { background: var(--accent); }
.btn-success { background: var(--success); color: #052e16; }
.btn-warning { background: var(--warning); color: #78350f; }
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--bg-tertiary);
}
.btn-large { padding: 16px 32px; font-size: 1.1rem; width: 100%; }
.btn-secondary.small { padding: 8px 16px; font-size: 0.85rem; }

.back-btn {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 10px 16px;
  cursor: pointer;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}
.back-btn:hover { background: var(--bg-tertiary); }
.back-btn.small { margin-bottom: 0; padding: 6px 12px; font-size: 0.9rem; }

.icon-btn {
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-md);
  padding: 8px 12px;
  color: white;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.2s;
}
.icon-btn:hover { background: var(--accent); }
.icon-btn.large { padding: 12px 16px; font-size: 1.4rem; }

/* ============ ADMIN SETUP ============ */
.admin-setup {
  max-width: 500px;
  margin: 40px auto;
}
.setup-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  box-shadow: var(--shadow-lg);
}
.setup-card h2 { margin-bottom: 20px; font-size: 1.5rem; }
.setup-card input {
  width: 100%;
  padding: 14px 18px;
  margin-bottom: 15px;
  background: var(--bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  color: white;
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}
.setup-card input:focus { border-color: var(--accent); }
.setup-divider {
  text-align: center;
  color: var(--text-muted);
  margin: 20px 0;
  font-size: 0.9rem;
}

/* ============ ADMIN DASHBOARD ============ */
.admin-dashboard { max-width: 1200px; margin: 0 auto; }
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 30px;
  padding: 20px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
}
.admin-header-left { display: flex; flex-direction: column; gap: 8px; }
.admin-header-left h1 { font-size: 1.5rem; }
.admin-header-right { display: flex; align-items: center; gap: 12px; }
.room-code-badge {
  background: var(--bg-tertiary);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}
.room-code-badge strong { font-size: 1.2rem; letter-spacing: 2px; color: var(--accent); }

/* Tabs */
.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--bg-tertiary);
}
.tab-btn {
  background: transparent;
  border: none;
  padding: 14px 24px;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s;
  font-family: inherit;
}
.tab-btn:hover { color: white; }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}
.stat-card {
  background: var(--bg-secondary);
  padding: 24px;
  border-radius: var(--radius-lg);
  text-align: center;
  transition: transform 0.2s;
}
.stat-card:hover { transform: translateY(-4px); }
.stat-icon { font-size: 2.5rem; margin-bottom: 8px; }
.stat-value { font-size: 2.5rem; font-weight: 800; color: var(--accent); }
.stat-value.small { font-size: 1.2rem; }
.stat-label { color: var(--text-secondary); font-size: 0.85rem; margin-top: 4px; }

/* Section title */
.section-title {
  font-size: 1.3rem;
  margin: 30px 0 16px;
  font-weight: 700;
}

/* QR Inline */
.qr-inline-container {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 30px;
  align-items: center;
}
.qr-inline-info h3 { margin-bottom: 12px; }
.qr-inline-info p { color: var(--text-secondary); margin-bottom: 8px; }
.qr-url {
  background: var(--bg-tertiary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 12px;
  word-break: break-all;
}
.qr-inline-code {
  background: white;
  padding: 12px;
  border-radius: var(--radius-md);
}
.qr-inline-code canvas, .qr-inline-code img { display: block; }

/* Participants grid */
.participants-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}
.participant-card-item {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  border-left: 4px solid var(--neutre);
  animation: cardFadeIn 0.4s ease;
  position: relative;
  transition: transform 0.2s;
}
.participant-card-item:hover { transform: translateY(-4px); }
.participant-card-item.category-positif { border-left-color: var(--positif); background: linear-gradient(135deg, var(--bg-secondary), rgba(74,222,128,0.1)); }
.participant-card-item.category-fun { border-left-color: var(--fun); background: linear-gradient(135deg, var(--bg-secondary), rgba(249,115,22,0.1)); }
.participant-card-item.category-neutre { border-left-color: var(--neutre); }
.participant-card-item.category-difficile { border-left-color: var(--difficile); background: linear-gradient(135deg, var(--bg-secondary), rgba(96,165,250,0.1)); }
.participant-card-item.category-intense { border-left-color: var(--intense); background: linear-gradient(135deg, var(--bg-secondary), rgba(248,113,113,0.1)); }

.participant-card-item .p-emoji { font-size: 3.5rem; margin-bottom: 8px; }
.participant-card-item .p-name { font-weight: 700; font-size: 1.1rem; margin-bottom: 4px; }
.participant-card-item .p-label { color: var(--text-secondary); font-size: 0.9rem; }
.participant-card-item .p-remove {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(248,113,113,0.2);
  border: none;
  color: var(--danger);
  width: 24px; height: 24px;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s;
}
.participant-card-item:hover .p-remove { opacity: 1; }

body.party-mode .participant-card-item {
  animation: cardFadeIn 0.4s ease, cardDance 1.5s ease-in-out infinite;
  border-image: linear-gradient(45deg, #ff6b6b, #feca57, #48dbfb, #ff9ff3) 1;
  border-width: 3px;
  border-style: solid;
}
@keyframes cardDance {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-6px) rotate(-2deg); }
  75% { transform: translateY(-6px) rotate(2deg); }
}
@keyframes cardFadeIn {
  from { opacity: 0; transform: scale(0.8) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* Mood distribution */
.mood-distribution {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 30px;
}
.mood-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.mood-bar-label {
  min-width: 100px;
  font-weight: 600;
  font-size: 0.9rem;
}
.mood-bar-track {
  flex: 1;
  height: 24px;
  background: var(--bg-tertiary);
  border-radius: 12px;
  overflow: hidden;
}
.mood-bar-fill {
  height: 100%;
  border-radius: 12px;
  transition: width 0.5s ease;
}
.mood-bar-fill.positif { background: var(--gradient-positive); }
.mood-bar-fill.fun { background: var(--gradient-fun); }
.mood-bar-fill.neutre { background: var(--gradient-neutre); }
.mood-bar-fill.difficile { background: var(--gradient-difficile); }
.mood-bar-fill.intense { background: var(--gradient-intense); }
.mood-bar-count { min-width: 60px; text-align: right; font-weight: 600; }

/* Empty state */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}
.empty-icon { font-size: 4rem; margin-bottom: 12px; }
.empty-hint { color: var(--text-muted); font-size: 0.9rem; margin-top: 8px; }

/* Admin actions */
.admin-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 30px;
  padding-top: 30px;
  border-top: 1px solid var(--bg-tertiary);
}

/* ============ PARTICIPANT MODE ============ */
.participant-step {
  max-width: 500px;
  margin: 20px auto;
}
.participant-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.participant-card.wide { max-width: 700px; margin: 0 auto; }
.participant-emoji-big {
  font-size: 5rem;
  margin-bottom: 16px;
  animation: bounce 2s ease-in-out infinite;
}
.participant-card h2 { margin-bottom: 12px; font-size: 1.8rem; }
.participant-card p { color: var(--text-secondary); margin-bottom: 20px; }
.participant-card input {
  width: 100%;
  padding: 16px 20px;
  margin-bottom: 20px;
  background: var(--bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  color: white;
  font-size: 1.2rem;
  font-family: inherit;
  outline: none;
  text-align: center;
}
.participant-card input:focus { border-color: var(--accent); }
.participant-card button { margin-top: 8px; }

/* Emoji categories */
.emoji-categories {
  margin: 20px 0;
  max-height: 60vh;
  overflow-y: auto;
  padding-right: 4px;
}
.emoji-category {
  margin-bottom: 20px;
  text-align: left;
}
.emoji-category-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 10px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  display: inline-block;
}
.emoji-category-title.positif { background: rgba(74,222,128,0.15); color: var(--positif); }
.emoji-category-title.fun { background: rgba(249,115,22,0.15); color: var(--fun); }
.emoji-category-title.neutre { background: rgba(148,163,184,0.15); color: var(--neutre); }
.emoji-category-title.difficile { background: rgba(96,165,250,0.15); color: var(--difficile); }
.emoji-category-title.intense { background: rgba(248,113,113,0.15); color: var(--intense); }
.emoji-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
  gap: 8px;
}
.emoji-btn {
  background: var(--bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: 8px 4px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  aspect-ratio: 1;
}
.emoji-btn:hover {
  transform: scale(1.1);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-md);
}
.emoji-btn.selected {
  border-color: var(--accent);
  background: var(--bg-secondary);
  animation: emojiBounce 0.4s ease;
}
@keyframes emojiBounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}
.emoji-btn .emoji {
  font-size: 1.8rem;
  line-height: 1;
}
.emoji-btn .label {
  font-size: 0.65rem;
  color: var(--text-secondary);
  line-height: 1;
  text-align: center;
}

.selected-mood-preview {
  background: var(--bg-tertiary);
  padding: 20px;
  border-radius: var(--radius-md);
  margin: 20px 0;
  border: 2px solid var(--accent);
}
.preview-emoji { font-size: 4rem; margin-bottom: 8px; }
.preview-label { font-size: 1.2rem; font-weight: 700; }

.connection-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(74,222,128,0.15);
  color: var(--success);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  margin: 20px 0;
}
.pulse-dot {
  width: 8px; height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

/* ============ MODAL ============ */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 20px;
}
.modal-content {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 500px;
  width: 100%;
  text-align: center;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--bg-tertiary);
  border: none;
  width: 36px; height: 36px;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  font-size: 1.2rem;
}
.modal-content h2 { margin-bottom: 8px; }
.qr-modal-url {
  font-family: monospace;
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 20px;
  word-break: break-all;
}
.qr-large {
  background: white;
  padding: 20px;
  border-radius: var(--radius-md);
  display: inline-block;
  margin-bottom: 20px;
}
.qr-modal-code p { color: var(--text-secondary); margin-bottom: 8px; }
.room-code-huge {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: 8px;
  color: var(--accent);
  margin-bottom: 20px;
}

/* ============ PARTY MODE ============ */
.party-badge {
  position: fixed;
  top: 20px; right: 20px;
  background: linear-gradient(135deg, #ff6b6b, #feca57, #48dbfb);
  background-size: 300% 300%;
  animation: gradientShift 3s ease infinite, badgeBounce 1s ease infinite;
  padding: 12px 20px;
  border-radius: 50px;
  color: white;
  font-weight: 900;
  z-index: 9997;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 20px rgba(255,107,107,0.5);
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
@keyframes badgeBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}
.party-badge-icon {
  font-size: 1.4rem;
  animation: spin 2s linear infinite;
  display: inline-block;
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.party-badge-close {
  background: rgba(255,255,255,0.2);
  border: none;
  color: white;
  width: 22px; height: 22px;
  border-radius: 50%;
  cursor: pointer;
  margin-left: 4px;
}

.party-banner {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: bannerFadeIn 0.5s ease;
}
@keyframes bannerFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.party-banner-content {
  background: linear-gradient(135deg, #ff6b6b, #feca57, #48dbfb, #ff9ff3);
  background-size: 400% 400%;
  animation: gradientShift 4s ease infinite;
  padding: 50px;
  border-radius: var(--radius-lg);
  text-align: center;
  max-width: 90%;
  animation: bannerBounce 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55), gradientShift 4s ease infinite;
}
@keyframes bannerBounce {
  0% { transform: scale(0.3); opacity: 0; }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}
.party-trophy {
  font-size: 6rem;
  animation: trophySpin 2s ease-in-out infinite;
}
@keyframes trophySpin {
  0%, 100% { transform: rotate(-10deg); }
  50% { transform: rotate(10deg); }
}
.party-title {
  font-size: 2.5rem;
  font-weight: 900;
  color: white;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
  margin: 16px 0;
}
.party-subtitle {
  font-size: 1.3rem;
  color: #fff8e1;
  font-weight: 700;
  margin-bottom: 20px;
}
.party-emojis {
  font-size: 2rem;
  margin: 20px 0;
  animation: bounce 1s ease infinite;
}
.party-close-btn {
  background: white;
  color: #333;
  border: none;
  padding: 12px 32px;
  border-radius: var(--radius-md);
  font-weight: 700;
  cursor: pointer;
  font-size: 1rem;
  margin-top: 12px;
}

/* ============ AUDIO BAR ============ */
.audio-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: rgba(26,26,46,0.95);
  backdrop-filter: blur(12px);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 9996;
  border-top: 1px solid var(--bg-tertiary);
}
.audio-btn {
  background: var(--gradient-primary);
  border: none;
  width: 48px; height: 48px;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.audio-info { flex: 1; min-width: 0; }
.audio-track-name { font-weight: 700; font-size: 0.95rem; }
.audio-track-desc { color: var(--text-secondary); font-size: 0.8rem; }
.audio-visualizer {
  display: flex;
  gap: 3px;
  align-items: flex-end;
  height: 30px;
}
.audio-visualizer span {
  width: 4px;
  background: var(--accent);
  border-radius: 2px;
  height: 30%;
}
.audio-bar.playing .audio-visualizer span {
  animation: visualize 0.8s ease-in-out infinite;
}
.audio-bar.playing .audio-visualizer span:nth-child(2) { animation-delay: 0.1s; }
.audio-bar.playing .audio-visualizer span:nth-child(3) { animation-delay: 0.2s; }
.audio-bar.playing .audio-visualizer span:nth-child(4) { animation-delay: 0.3s; }
.audio-bar.playing .audio-visualizer span:nth-child(5) { animation-delay: 0.4s; }
@keyframes visualize {
  0%, 100% { height: 30%; }
  50% { height: 100%; }
}
.audio-volume {
  display: flex;
  align-items: center;
  gap: 8px;
}
.volume-btn {
  background: var(--bg-tertiary);
  border: none;
  width: 28px; height: 28px;
  border-radius: 50%;
  color: white;
  cursor: pointer;
}
#volumeSlider { width: 100px; accent-color: var(--accent); }
#volumeValue { color: var(--text-secondary); font-size: 0.85rem; min-width: 40px; }

/* ============ NOTIFICATIONS ============ */
.notification-container {
  position: fixed;
  top: 20px; left: 50%;
  transform: translateX(-50%);
  z-index: 10001;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.notification {
  background: var(--bg-secondary);
  color: white;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  animation: slideDown 0.3s ease;
  pointer-events: auto;
  border-left: 4px solid var(--accent);
}
.notification.success { border-left-color: var(--success); }
.notification.error { border-left-color: var(--danger); }
.notification.warning { border-left-color: var(--warning); }
@keyframes slideDown {
  from { transform: translateY(-40px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ============ CHART & HISTORY ============ */
.chart-container {
  background: var(--bg-secondary);
  padding: 24px;
  border-radius: var(--radius-lg);
  margin-bottom: 30px;
  height: 400px;
}
.history-list { display: flex; flex-direction: column; gap: 12px; }
.history-item {
  background: var(--bg-secondary);
  padding: 20px;
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.history-item .h-date { font-weight: 700; }
.history-item .h-stats { color: var(--text-secondary); font-size: 0.9rem; }
.empty-state-small { color: var(--text-muted); text-align: center; padding: 40px; }

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .home-title { font-size: 2.5rem; }
  .qr-inline-container { grid-template-columns: 1fr; }
  .qr-inline-code { justify-self: center; }
  .admin-header { flex-direction: column; align-items: flex-start; }
  .admin-header-right { flex-wrap: wrap; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .participants-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .party-title { font-size: 1.8rem; }
  .party-trophy { font-size: 4rem; }
  .audio-volume { display: none; }
  .audio-visualizer { display: none; }
  .emoji-grid { grid-template-columns: repeat(auto-fill, minmax(60px, 1fr)); }
  .emoji-btn .emoji { font-size: 1.5rem; }
  .room-code-huge { font-size: 2rem; letter-spacing: 4px; }
  body { padding-bottom: 80px; }
}
@media (max-width: 480px) {
  .home-container { padding: 20px 10px; }
  .stat-value { font-size: 1.8rem; }
  .modal-content { padding: 24px; }
}