@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;600;700;900&family=Press+Start+2P&family=Space+Grotesk:wght@500;700&display=swap');

:root {
  --bg-primary: #080d0e;
  --bg-secondary: #0f181c;
  --bg-card: rgba(18, 29, 34, 0.85);
  --bg-card-hover: rgba(26, 42, 49, 0.95);
  --accent-green: #00ff88;
  --accent-green-dim: #059669;
  --accent-green-glow: rgba(0, 255, 136, 0.35);
  --text-primary: #f0fdf4;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(0, 255, 136, 0.18);
  --border-glow: 0 0 20px rgba(0, 255, 136, 0.2);
  --font-main: 'Outfit', sans-serif;
  --font-arcade: 'Press Start 2P', monospace;
  --font-tech: 'Space Grotesk', sans-serif;
  --radius-lg: 0;
  --radius-md: 0;
  --radius-sm: 0;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(0, 255, 136, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(14, 165, 233, 0.06) 0%, transparent 40%),
    linear-gradient(180deg, #060a0c 0%, #0c1417 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Container Principal */
.app-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex: 1;
}

/* Header */
header.app-header {
  position: relative;
  min-height: 7.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem 14rem 1rem 9rem;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.logo-group {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.logo-badge {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 8rem;
  height: 7.2rem;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  overflow: hidden;
}

.logo-badge img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left bottom;
}

.logo-text h1 {
  font-family: var(--font-tech);
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0;
  text-align: center;
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-green) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-transform: uppercase;
}

.logo-text p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.admin-header {
  padding-left: 1.5rem;
}

.admin-brand {
  justify-content: center;
  text-align: center;
}

.admin-brand .logo-text h1,
.admin-brand .logo-text p {
  text-align: center;
}

.admin-header {
  flex-direction: column;
  align-items: stretch;
  gap: 1rem;
}

.admin-header .admin-brand {
  width: 100%;
}

.admin-header .header-controls {
  position: static;
  width: 100%;
  justify-content: center;
  flex-wrap: wrap;
}

.header-controls {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.session-clock {
  position: absolute;
  right: 1rem;
  bottom: 0.45rem;
  color: var(--text-muted);
  font-family: var(--font-arcade);
  font-size: 0.55rem;
  letter-spacing: 0;
  white-space: nowrap;
  opacity: 0.8;
}

.btn-admin-link, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
}

.icon-button {
  width: 3rem;
  height: 3rem;
  justify-content: center;
  padding: 0;
  background: #e5e7eb;
  border: 2px solid #f8fafc;
  color: #111827;
  font-size: 1.35rem;
  box-shadow: inset 0 0 0 1px #9ca3af, 0 3px 0 #6b7280;
}

.icon-button .icon-glyph {
  display: inline-block;
  color: #111827;
  font-family: "Segoe UI Symbol", "Arial Unicode MS", sans-serif;
  font-variant-emoji: text;
  filter: grayscale(1) contrast(1.6) brightness(0.45);
}

.icon-button:hover {
  background: #f3f4f6;
  border-color: #ffffff;
  color: #111827;
  box-shadow: inset 0 0 0 1px #9ca3af, 0 3px 0 #6b7280;
}

.btn-admin-link:hover, .btn-secondary:hover {
  background: rgba(0, 255, 136, 0.15);
  border-color: var(--accent-green);
  transform: translateY(-2px);
  box-shadow: 0 0 12px var(--accent-green-glow);
}

.icon-button.btn-admin-link:hover,
.icon-button.btn-secondary:hover {
  background: #f3f4f6;
  border-color: #ffffff;
  color: #111827;
  box-shadow: inset 0 0 0 1px #9ca3af, 0 3px 0 #6b7280;
}

.btn-secondary.active {
  background: rgba(0, 255, 136, 0.12);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.category-menu-button {
  border-color: #f8fafc;
  color: #111827;
  background: #e5e7eb;
  box-shadow: inset 0 0 0 1px #9ca3af, 0 3px 0 #6b7280;
}

/* Placar e Barra de Status */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.65rem;
}

.stats-toggle {
  display: none;
}

.stat-box {
  background: #667078;
  backdrop-filter: blur(10px);
  border: 1px solid #737b80;
  border-radius: var(--radius-md);
  min-height: 3.8rem;
  padding: 0.45rem 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-tech);
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  box-shadow: inset 0 0 0 1px #34393c, 0 3px 0 #202427;
}

.stat-box[data-tooltip] {
  position: relative;
  cursor: help;
}

.stat-box[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  z-index: 20;
  left: 50%;
  bottom: calc(100% + 0.65rem);
  width: max-content;
  max-width: 15rem;
  padding: 0.55rem 0.7rem;
  transform: translate(-50%, 0.25rem);
  background: #111827;
  border: 1px solid var(--accent-green);
  color: #f0fdf4;
  font-family: var(--font-main);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.stat-box[data-tooltip]::before {
  content: '';
  position: absolute;
  z-index: 21;
  left: 50%;
  bottom: calc(100% + 0.25rem);
  border: 0.4rem solid transparent;
  border-top-color: var(--accent-green);
  transform: translateX(-50%);
  opacity: 0;
  pointer-events: none;
}

.stat-box[data-tooltip]:hover::before,
.stat-box[data-tooltip]:hover::after,
.stat-box[data-tooltip]:focus-visible::before,
.stat-box[data-tooltip]:focus-visible::after,
.stat-box[data-tooltip].tooltip-visible::before,
.stat-box[data-tooltip].tooltip-visible::after {
  opacity: 1;
}

.stat-box[data-tooltip]:hover::after,
.stat-box[data-tooltip]:focus-visible::after,
.stat-box[data-tooltip].tooltip-visible::after {
  transform: translate(-50%, 0);
}

.stat-box .stat-icon {
  flex: 0 0 auto;
  font-size: 1.55rem;
}

.stat-box .stat-value {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.streak-line {
  display: none;
  white-space: nowrap;
}

.streak-feedback {
  display: none;
  margin-left: 0.45rem;
  color: var(--text-muted);
  font-size: 0.68rem;
  font-weight: 600;
  white-space: nowrap;
}

.score-highlight {
  color: var(--accent-green);
  text-shadow: 0 0 10px var(--accent-green-glow);
}

.top-score-highlight {
  color: #facc15;
  text-shadow: 0 0 10px rgba(250, 204, 21, 0.65);
}

/* Gameplay Layout */
.gameplay-area {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.answer-timer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  width: min(440px, 100%);
  margin: -0.5rem auto 0;
  padding: 0.55rem 0.8rem;
  background: #50565a;
  border: 2px solid #7b8388;
  color: #f1f5f9;
  font-family: var(--font-arcade);
  box-shadow: inset 0 0 0 2px #34393c, 0 4px 0 #202427;
}

.answer-timer-label {
  color: #cbd5e1;
  font-size: 0.58rem;
}

.answer-timer-value {
  min-width: 4.6rem;
  color: #ffffff;
  font-size: 0.85rem;
  text-align: center;
}

.answer-timer-penalty {
  color: #d1d5db;
  font-family: var(--font-tech);
  font-size: 0.75rem;
  font-weight: 700;
}

.answer-timer-penalty.has-penalty {
  color: #fecaca;
}

/* Card do Item Arrastável */
.item-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #667078;
  border: 2px solid #9ca3af;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: inset 0 0 0 1px #cbd5e1, 0 3px 0 #374151;
  position: relative;
}

.item-stage-hint {
  font-size: 0.85rem;
  color: #f0fdf4;
  margin-bottom: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  animation: bounce-subtle 2s infinite ease-in-out;
}

.draggable-item-card {
  width: 100%;
  max-width: 440px;
  background: linear-gradient(145deg, #174b36, #0d2d20);
  border: 2px solid #34d399;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px #0b5b3b, 0 3px 0 #062e20, 0 0 20px rgba(52, 211, 153, 0.28);
  cursor: grab;
  user-select: none;
  transition: transform 0.2s, box-shadow 0.2s;
  touch-action: none;
}

.draggable-item-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.8), 0 0 30px var(--accent-green-glow);
}

.draggable-item-card:active, .draggable-item-card.is-dragging {
  cursor: grabbing;
  opacity: 1;
  filter: none;
  transform: scale(1.1);
  border-style: solid;
}

.item-image-wrapper {
  width: 100%;
  height: 200px;
  background: transparent;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.item-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
  -webkit-user-drag: none;
}

.draggable-item-card:hover .item-image {
  transform: scale(1.05);
}

.item-emoji-fallback {
  font-size: 5rem;
}

.item-content {
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.item-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.3;
}

.item-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Área de Descarte: Grid de 10 Lixeiras */
.bins-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section-title {
  font-family: var(--font-tech);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.bins-view-toggle {
  display: none;
  border: 2px solid currentColor;
  background: rgba(255, 255, 255, 0.06);
  color: #60a5fa;
  cursor: pointer;
  font-family: var(--font-tech);
  font-weight: 800;
  padding: 0.55rem 0.8rem;
}

.bins-view-toggle[aria-pressed="true"] {
  background: rgba(96, 165, 250, 0.16);
}

.bins-grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 0.15rem;
  align-items: end;
}

.bins-grid.bins-list-view {
  grid-template-columns: 1fr;
  gap: 0.45rem;
}

/* Estilo individual das Lixeiras */
.recycle-bin {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 2px solid rgba(255, 255, 255, 0.1);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.6rem;
  cursor: pointer;
  position: relative;
  transition: var(--transition);
  user-select: none;
  overflow: hidden;
}

.recycle-bin::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: currentColor;
}

.bins-list-view .recycle-bin {
  min-height: 3rem;
  padding: 0.45rem 0.8rem;
  flex-direction: row;
  justify-content: flex-start;
  gap: 0;
}

.bins-list-view .recycle-bin::before {
  width: 7px;
  height: 100%;
  right: auto;
  bottom: 0;
}

.bins-list-view .bin-image {
  display: none;
}

.bins-list-view .recycle-bin::after {
  content: '♻️ ' attr(data-bin);
  margin-left: 0.35rem;
  color: currentColor;
  font-family: var(--font-arcade);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.bin-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.bin-icon {
  font-size: 2.2rem;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.5));
}

.bin-image {
  display: block;
  width: 100%;
  max-width: none;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  user-select: none;
  pointer-events: none;
}

.bin-info-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.78);
}

.bin-info-overlay.active {
  display: flex;
}

.bin-info-card {
  position: relative;
  width: min(1000px, calc(100vw - 2rem));
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  padding: clamp(1rem, 3vw, 2rem);
  background: var(--bg-card);
  border: 2px solid var(--accent-green);
  box-shadow: var(--border-glow);
  text-align: left;
}

.bin-info-card h2 {
  margin-bottom: 1.2rem;
  color: var(--accent-green);
  font-family: var(--font-arcade);
  font-size: 1.1rem;
}

.bin-info-intro {
  margin-bottom: 1.2rem;
  padding: 0.8rem;
  border-left: 3px solid var(--accent-green);
  background: rgba(0, 255, 136, 0.08);
  color: var(--text-primary);
  line-height: 1.5;
}

.bin-info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem 1.2rem;
  text-align: left;
}

.bin-info-grid p {
  color: var(--text-secondary);
  line-height: 1.4;
}

.bin-info-grid strong {
  color: #ffffff;
}

.bin-info-grid .bin-info-azul strong { color: #60a5fa; }
.bin-info-grid .bin-info-vermelho strong { color: #f87171; }
.bin-info-grid .bin-info-verde strong { color: #4ade80; }
.bin-info-grid .bin-info-amarelo strong { color: #fde047; }
.bin-info-grid .bin-info-marrom strong { color: #d97706; }
.bin-info-grid .bin-info-cinza strong { color: #cbd5e1; }
.bin-info-grid .bin-info-preto strong { color: #94a3b8; }
.bin-info-grid .bin-info-branco strong { color: #ffffff; }
.bin-info-grid .bin-info-laranja strong { color: #fb923c; }
.bin-info-grid .bin-info-roxo strong { color: #c084fc; }

.bin-info-close {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  border: 1px solid #ef4444;
  background: transparent;
  color: #f87171;
  padding: 0.35rem 0.55rem;
  cursor: pointer;
  font-weight: 800;
}

.bin-badge {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.5px;
}

.bin-category {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
}

.bin-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* As imagens das lixeiras ficam livres, sem cartões ou fundos individuais. */
.bins-grid .recycle-bin,
.bins-grid .recycle-bin:hover,
.bins-grid .recycle-bin.drag-hover {
  min-width: 0;
  padding: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.bins-grid .recycle-bin::before {
  display: none;
}

/* Cores Oficiais das Lixeiras */
.bin-azul {
  color: #3b82f6;
  border-color: rgba(59, 130, 246, 0.4);
}
.bin-azul .bin-badge { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.bin-azul:hover, .bin-azul.drag-hover {
  background: rgba(59, 130, 246, 0.15);
  border-color: #3b82f6;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
}

.bin-vermelho {
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.4);
}
.bin-vermelho .bin-badge { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.bin-vermelho:hover, .bin-vermelho.drag-hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: #ef4444;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.4);
}

.bin-verde {
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.4);
}
.bin-verde .bin-badge { background: rgba(34, 197, 94, 0.2); color: #4ade80; }
.bin-verde:hover, .bin-verde.drag-hover {
  background: rgba(34, 197, 94, 0.15);
  border-color: #22c55e;
  box-shadow: 0 0 20px rgba(34, 197, 94, 0.4);
}

.bin-amarelo {
  color: #eab308;
  border-color: rgba(234, 179, 8, 0.4);
}
.bin-amarelo .bin-badge { background: rgba(234, 179, 8, 0.2); color: #fde047; }
.bin-amarelo:hover, .bin-amarelo.drag-hover {
  background: rgba(234, 179, 8, 0.15);
  border-color: #eab308;
  box-shadow: 0 0 20px rgba(234, 179, 8, 0.4);
}

.bin-marrom {
  color: #b45309;
  border-color: rgba(180, 83, 9, 0.4);
}
.bin-marrom .bin-badge { background: rgba(180, 83, 9, 0.2); color: #d97706; }
.bin-marrom:hover, .bin-marrom.drag-hover {
  background: rgba(180, 83, 9, 0.15);
  border-color: #b45309;
  box-shadow: 0 0 20px rgba(180, 83, 9, 0.4);
}

.bin-cinza {
  color: #94a3b8;
  border-color: rgba(148, 163, 184, 0.4);
}
.bin-cinza .bin-badge { background: rgba(148, 163, 184, 0.2); color: #cbd5e1; }
.bin-cinza:hover, .bin-cinza.drag-hover {
  background: rgba(148, 163, 184, 0.15);
  border-color: #94a3b8;
  box-shadow: 0 0 20px rgba(148, 163, 184, 0.4);
}

.bin-preto {
  color: #475569;
  border-color: rgba(71, 85, 105, 0.5);
}
.bin-preto .bin-badge { background: rgba(30, 41, 59, 0.8); color: #94a3b8; border: 1px solid #475569; }
.bin-preto:hover, .bin-preto.drag-hover {
  background: rgba(30, 41, 59, 0.5);
  border-color: #64748b;
  box-shadow: 0 0 20px rgba(100, 116, 139, 0.4);
}

.bin-branco {
  color: #f8fafc;
  border-color: rgba(248, 250, 252, 0.5);
}
.bin-branco .bin-badge { background: rgba(248, 250, 252, 0.9); color: #0f172a; }
.bin-branco:hover, .bin-branco.drag-hover {
  background: rgba(248, 250, 252, 0.15);
  border-color: #f8fafc;
  box-shadow: 0 0 20px rgba(248, 250, 252, 0.4);
}

.bin-laranja {
  color: #f97316;
  border-color: rgba(249, 115, 22, 0.4);
}
.bin-laranja .bin-badge { background: rgba(249, 115, 22, 0.2); color: #fb923c; }
.bin-laranja:hover, .bin-laranja.drag-hover {
  background: rgba(249, 115, 22, 0.15);
  border-color: #f97316;
  box-shadow: 0 0 20px rgba(249, 115, 22, 0.4);
}

.bin-roxo {
  color: #a855f7;
  border-color: rgba(168, 85, 247, 0.4);
}
.bin-roxo .bin-badge { background: rgba(168, 85, 247, 0.2); color: #c084fc; }
.bin-roxo:hover, .bin-roxo.drag-hover {
  background: rgba(168, 85, 247, 0.15);
  border-color: #a855f7;
  box-shadow: 0 0 20px rgba(168, 85, 247, 0.4);
}

/* Feedback Modal / Popover */
.feedback-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 1rem;
}

.feedback-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.feedback-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 2px solid var(--accent-green);
  padding: 2rem;
  max-width: 480px;
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), var(--border-glow);
}

.feedback-overlay.active .feedback-card {
  transform: scale(1);
}

.feedback-card.error {
  border-color: #ef4444;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 30px rgba(239, 68, 68, 0.4);
}

.feedback-icon {
  font-size: 3.5rem;
}

.feedback-title {
  font-size: 1.6rem;
  font-weight: 800;
}

.feedback-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.btn-primary {
  padding: 0.8rem 1.8rem;
  background: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-green-dim) 100%);
  border: none;
  border-radius: var(--radius-sm);
  color: #06110d;
  font-weight: 800;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 15px rgba(0, 255, 136, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 255, 136, 0.5);
}

/* Tela de Fim de Jogo (Game Over) */
.gameover-screen {
  display: none;
  flex-direction: column;
  gap: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.gameover-screen.active {
  display: flex;
}

.gameover-title {
  font-family: var(--font-arcade);
  font-size: 2rem;
  color: var(--accent-green);
  text-shadow: 0 0 15px var(--accent-green-glow);
  letter-spacing: 2px;
}

.arcade-input-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  background: rgba(0, 0, 0, 0.4);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
}

.arcade-input-title {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

.arcade-initials-input {
  font-family: var(--font-arcade);
  font-size: 2.5rem;
  text-align: center;
  width: 180px;
  background: #070d0f;
  border: 2px solid var(--accent-green);
  border-radius: var(--radius-sm);
  color: #ffffff;
  letter-spacing: 12px;
  padding: 0.5rem;
  outline: none;
  text-transform: uppercase;
  box-shadow: 0 0 15px var(--accent-green-glow);
}

.arcade-initials-input:focus {
  border-color: #ffffff;
  box-shadow: 0 0 25px rgba(255, 255, 255, 0.4);
}

/* Tabela de Ranking */
.leaderboard-section {
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.leaderboard-table th, .leaderboard-table td {
  padding: 0.9rem 1.2rem;
  text-align: left;
}

.leaderboard-table th {
  background: rgba(0, 255, 136, 0.1);
  color: var(--accent-green);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.leaderboard-table tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.leaderboard-table tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.rank-badge {
  font-family: var(--font-arcade);
  font-size: 0.85rem;
  font-weight: bold;
}

.rank-1 { color: #facc15; }
.rank-2 { color: #cbd5e1; }
.rank-3 { color: #d97706; }

.player-initials {
  font-family: var(--font-arcade);
  letter-spacing: 2px;
  font-size: 1rem;
}

.player-score {
  font-family: var(--font-tech);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent-green);
  text-align: right;
}

/* Painel de Administração */
.admin-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.admin-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  margin-top: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input, .form-select, .form-textarea {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: #ffffff;
  font-family: var(--font-main);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green-glow);
}

.form-textarea {
  min-height: 85px;
  resize: vertical;
}

.alert-message {
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  display: none;
  animation: fadeIn 0.3s ease;
}

.alert-message.success {
  display: block;
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid #10b981;
  color: #34d399;
}

.alert-message.error {
  display: block;
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid #ef4444;
  color: #f87171;
}

/* Footer */
footer.app-footer {
  margin-top: auto;
  text-align: center;
  padding: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Área de Upload de Imagem */
.upload-container {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  background: rgba(0, 0, 0, 0.25);
  border: 2px dashed rgba(0, 255, 136, 0.3);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  transition: var(--transition);
}

.upload-container:hover, .upload-container.drag-over {
  border-color: var(--accent-green);
  background: rgba(0, 255, 136, 0.05);
}

.upload-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.file-input-hidden {
  display: none;
}

.btn-upload-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1.3rem;
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.15) 0%, rgba(5, 150, 105, 0.25) 100%);
  border: 1px solid var(--accent-green);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-upload-trigger:hover {
  background: var(--accent-green);
  color: #06110d;
  box-shadow: 0 0 15px var(--accent-green-glow);
  transform: translateY(-2px);
}

.upload-status-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.upload-preview-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
  padding: 0.8rem;
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.batch-import-panel {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid rgba(56, 189, 248, 0.35);
  background: rgba(14, 165, 233, 0.08);
}

.batch-import-panel h3 {
  color: #7dd3fc;
  font-size: 1rem;
}

.batch-import-panel p,
.batch-import-info span {
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.45;
}

.batch-import-info {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.batch-import-info code {
  display: block;
  overflow-x: auto;
  padding: 0.55rem;
  background: rgba(0, 0, 0, 0.35);
  color: #bae6fd;
  font-size: 0.75rem;
  white-space: nowrap;
}

.batch-import-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.upload-preview-thumb {
  width: 70px;
  height: 70px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-green);
  background: #000;
}

.upload-preview-info {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1;
}

.upload-filename {
  font-size: 0.85rem;
  font-weight: 600;
  color: #ffffff;
  word-break: break-all;
}

.upload-badge-success {
  font-size: 0.75rem;
  color: #34d399;
  font-weight: bold;
}

/* Botões de Ação na Tabela (Editar e Excluir) */
.actions-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: flex-end;
}

.btn-action-edit, .btn-action-delete {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: var(--transition);
  background: rgba(0, 0, 0, 0.4);
}

.btn-action-edit {
  border: 1px solid #38bdf8;
  color: #38bdf8;
}

.btn-action-edit:hover {
  background: #38bdf8;
  color: #0c1417;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.4);
  transform: translateY(-2px);
}

.btn-action-delete {
  border: 1px solid #ef4444;
  color: #f87171;
}

.btn-action-delete:hover {
  background: #ef4444;
  color: #ffffff;
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.4);
  transform: translateY(-2px);
}

.edit-mode-indicator {
  display: none;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid #38bdf8;
  color: #38bdf8;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

/* Sistema de Troféus Dinâmico */
.trophy-stat-box {
  background: linear-gradient(145deg, rgba(26, 42, 49, 0.9), rgba(18, 29, 34, 0.85));
  border-color: rgba(250, 204, 21, 0.3);
}

.trophy-pulse-icon {
  font-size: 2.2rem;
  filter: drop-shadow(0 0 10px rgba(250, 204, 21, 0.5));
  animation: trophy-bounce 2s infinite ease-in-out;
}

.trophy-highlight {
  font-size: 1.05rem;
  font-weight: 800;
  color: #facc15;
  text-shadow: 0 0 8px rgba(250, 204, 21, 0.3);
}

.trophy-sub-text {
  font-size: 0.72rem;
  color: var(--accent-green);
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* Toast de Conquista de Troféu */
.trophy-toast {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: linear-gradient(135deg, #11221b 0%, #163625 100%);
  border: 2px solid var(--accent-green);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8), 0 0 25px var(--accent-green-glow);
  border-radius: var(--radius-md);
  padding: 1rem 1.4rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 1000;
  transform: translateY(120px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
}

.trophy-toast.active {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.trophy-toast-icon {
  font-size: 2.8rem;
  filter: drop-shadow(0 0 12px rgba(250, 204, 21, 0.6));
}

.trophy-toast-content h4 {
  font-family: var(--font-tech);
  font-size: 1.1rem;
  color: #ffffff;
  margin-bottom: 0.2rem;
}

.trophy-toast-content p {
  font-size: 0.85rem;
  color: #a7f3d0;
}

@keyframes trophy-bounce {
  0%, 100% { transform: scale(1) translateY(0); }
  50% { transform: scale(1.1) translateY(-3px); }
}



/* Animações */
@keyframes pulse-glow {
  0% { box-shadow: 0 0 10px rgba(0, 255, 136, 0.2); }
  100% { box-shadow: 0 0 25px rgba(0, 255, 136, 0.5); }
}

@keyframes bounce-subtle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsividade */
@media (max-width: 768px) {
  .app-container {
    padding: 1rem;
    gap: 0.6rem;
  }

  header.app-header {
    min-height: 0;
    justify-content: space-between;
    padding: 1rem;
  }

  .logo-group {
    width: auto;
    justify-content: flex-start;
  }

  .logo-badge {
    position: static;
    width: 5rem;
    height: 4rem;
  }

  .logo-text h1 {
    font-size: 1.4rem;
  }

  .header-controls {
    position: static;
    width: 100%;
    flex-wrap: wrap;
    gap: 0.55rem;
  }

  .header-controls > * {
    flex: 1 1 auto;
    justify-content: center;
    min-width: 0;
  }

  .session-clock {
    display: none;
  }

  .stats-toggle {
    display: block;
    width: 100%;
    margin: 0;
    padding: 0.55rem 1rem;
    border: 2px solid #f8fafc;
    border-radius: var(--radius-sm);
    background: #e5e7eb;
    color: #111827;
    cursor: pointer;
    font-weight: 700;
    box-shadow: inset 0 0 0 1px #9ca3af, 0 3px 0 #6b7280;
    transition: var(--transition);
  }

  .stats-toggle:hover {
    background: #f3f4f6;
    box-shadow: inset 0 0 0 1px #9ca3af, 0 3px 0 #6b7280;
  }

  .stats-toggle + .stats-bar {
    margin-top: -0.35rem;
  }

  .stats-bar:not(.mobile-expanded) {
    display: none !important;
  }

  .stats-bar.mobile-expanded {
    display: grid !important;
    grid-template-columns: 1fr;
  }

  .stat-box {
    min-width: 0;
  }

  .bins-section .section-header {
    align-items: stretch;
    flex-wrap: wrap;
    gap: 0.6rem;
  }

  .bins-section .section-title {
    flex: 1 1 100%;
  }

  .bins-view-toggle {
    display: block;
    width: 100%;
  }
  
  .bins-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.25rem;
  }

  .gameplay-area {
    gap: 0.6rem;
  }

  .bins-section {
    gap: 0.35rem;
  }

  .bins-list-view .recycle-bin::after {
    content: attr(data-category);
    font-family: var(--font-tech);
    font-size: 1rem;
    font-weight: 800;
    text-transform: none;
  }

  .bins-grid.bins-list-view {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.45rem;
  }

  .bins-grid.bins-list-view .recycle-bin,
  .bins-grid.bins-list-view .recycle-bin:hover,
  .bins-grid.bins-list-view .recycle-bin.drag-hover {
    min-height: 2.8rem;
    padding: 0.45rem 0.6rem;
    justify-content: center;
    background: #667078;
    border: 1px solid #9ca3af;
    box-shadow: inset 0 0 0 1px #cbd5e1, 0 3px 0 #374151;
  }

  .bins-grid.bins-list-view .recycle-bin::before {
    display: none;
  }

  .bins-grid.bins-list-view .bin-azul { background: #2563eb; color: #ffffff; }
  .bins-grid.bins-list-view .bin-vermelho { background: #dc2626; color: #ffffff; }
  .bins-grid.bins-list-view .bin-verde { background: #16a34a; color: #ffffff; }
  .bins-grid.bins-list-view .bin-amarelo { background: #facc15; color: #422006; }
  .bins-grid.bins-list-view .bin-marrom { background: #78350f; color: #ffffff; }
  .bins-grid.bins-list-view .bin-cinza { background: #64748b; color: #ffffff; }
  .bins-grid.bins-list-view .bin-preto { background: #1f2937; color: #ffffff; }
  .bins-grid.bins-list-view .bin-branco { background: #f8fafc; color: #111827; }
  .bins-grid.bins-list-view .bin-laranja { background: #f97316; color: #422006; }
  .bins-grid.bins-list-view .bin-roxo { background: #9333ea; color: #ffffff; }

  .logo-text h1 {
    font-size: 1.4rem;
  }

  .gameover-title {
    font-size: 1.4rem;
  }

  .leaderboard-date-column {
    display: none;
  }

  .leaderboard-table th,
  .leaderboard-table td {
    padding: 0.65rem 0.45rem;
    font-size: 0.78rem;
  }

  .leaderboard-table .player-initials,
  .leaderboard-table .player-score {
    font-size: 0.78rem;
  }
}

@media (max-width: 480px) {
  .bins-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.2rem;
  }

  .recycle-bin {
    padding: 0.7rem 0.4rem;
    gap: 0.35rem;
  }

  .bin-image {
    height: 115px;
  }

  .bin-info-grid {
    grid-template-columns: 1fr;
  }
}

/* Compacta o palco completo para caber em uma tela desktop 16:9. */
@media (min-width: 769px) and (max-height: 900px) {
  .app-container {
    padding: 0.75rem;
    gap: 0.75rem;
  }

  header.app-header {
    min-height: 5.6rem;
    padding: 0.65rem 13rem 0.65rem 7rem;
  }

  .logo-badge {
    width: 6.2rem;
    height: 5.35rem;
  }

  .header-controls {
    top: 0.65rem;
    right: 0.65rem;
    gap: 0.5rem;
  }

  .icon-button {
    width: 2.5rem;
    height: 2.5rem;
  }

  .session-clock {
    right: 0.65rem;
    bottom: 0.25rem;
  }

  .stats-bar {
    gap: 0.45rem;
  }

  .stat-box {
    min-height: 3rem;
    padding: 0.25rem 0.5rem;
  }

  .gameplay-area {
    gap: 0.75rem;
  }

  .item-stage {
    padding: 0.65rem;
  }

  .item-stage-hint {
    margin-bottom: 0.45rem;
  }

  .item-image-wrapper {
    height: 135px;
  }

  .item-content {
    padding: 0.7rem;
    gap: 0.35rem;
  }

  .answer-timer {
    margin: -0.25rem auto 0;
    padding: 0.35rem 0.65rem;
  }

  .bins-section {
    gap: 0.5rem;
  }

  .bins-grid {
    gap: 0.45rem;
  }

  .recycle-bin {
    padding: 0.45rem;
    gap: 0.3rem;
  }

  .bin-image {
    height: 115px;
  }
}