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

:root {
  --panel-border: rgba(255, 255, 255, 0.08);
  --text-soft: rgba(255, 255, 255, 0.82);
  --blue: #3b82f6;
  --blue-hover: #2563eb;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #ffffff;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 20%, rgba(59, 130, 246, 0.12), transparent 30%),
    radial-gradient(circle at 85% 20%, rgba(14, 165, 233, 0.12), transparent 25%),
    linear-gradient(90deg, #04111f 0%, #07162b 18%, #0a1f3b 50%, #07162b 82%, #04111f 100%);
}

.app-container {
  width: min(1400px, 94%);
  margin: 0 auto;
  padding: 28px 0 40px;
}

.hidden {
  display: none !important;
}

.glass-card {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  border-radius: 28px;
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.hero {
  text-align: center;
  padding: 20px 10px 28px;
}

.hero-badge {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  margin-bottom: 18px;
  font-size: 0.95rem;
  color: #b8d9ff;
  border: 1px solid rgba(59, 130, 246, 0.35);
  background: rgba(59, 130, 246, 0.08);
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1;
  margin-bottom: 14px;
  font-weight: 900;
  letter-spacing: -2px;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-soft);
  max-width: 760px;
  margin: 0 auto;
  line-height: 1.6;
}

.primary-btn,
.secondary-btn {
  border: none;
  cursor: pointer;
  border-radius: 16px;
  font-weight: 800;
  transition: all 0.25s ease;
}

.primary-btn {
  background: var(--blue);
  color: white;
  padding: 14px 22px;
  font-size: 1rem;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.22);
}

.primary-btn:hover {
  transform: translateY(-2px);
  background: var(--blue-hover);
}

.secondary-btn {
  padding: 12px 16px;
  font-size: 0.95rem;
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--panel-border);
}

.secondary-btn:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.12);
}

.section-topbar {
  display: flex;
  justify-content: flex-start;
  margin-bottom: 16px;
}

.menu-card {
  max-width: 1100px;
  margin: 0 auto 28px;
  padding: 28px;
  text-align: center;
}

.menu-card h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 10px;
}

.menu-subtitle {
  font-size: 1.05rem;
  color: var(--text-soft);
  margin-bottom: 24px;
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(260px, 1fr));
  gap: 18px;
}

.game-tile {
  border: none;
  cursor: pointer;
  text-align: left;
  padding: 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--panel-border);
  color: white;
  transition: all 0.25s ease;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}

.game-tile:hover:not(:disabled) {
  transform: translateY(-4px);
  border-color: rgba(120, 190, 255, 0.28);
  background: rgba(255, 255, 255, 0.08);
}

.game-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.game-tile h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.game-tile p {
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--text-soft);
  margin-bottom: 14px;
}

.game-badge {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(34, 197, 94, 0.18);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #b7ffd1;
}

.start-card,
.game-card,
.end-card {
  max-width: 1400px;
  margin: 0 auto 28px;
  padding: 28px;
}

.start-card h2,
.end-card h2,
.game-card h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  margin-bottom: 12px;
  text-align: center;
}

.start-card > p,
.end-card > p,
.game-card > p {
  text-align: center;
  color: var(--text-soft);
  line-height: 1.6;
}

.rules-box {
  margin: 24px auto;
  max-width: 760px;
  padding: 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--panel-border);
}

.rules-box p {
  margin: 8px 0;
  color: var(--text-soft);
  font-size: 1rem;
}

.top-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.stat-box {
  padding: 22px;
  border-radius: 24px;
  text-align: center;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--panel-border);
}

.stat-box .label {
  display: block;
  font-size: 1rem;
  color: var(--text-soft);
  margin-bottom: 10px;
}

.stat-box strong {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
}

.timer-box strong {
  color: #fde68a;
}

.question-card {
  text-align: center;
  margin-bottom: 18px;
}

.question-crop-wrap {
  width: min(100%, 640px);
  margin: 18px auto 10px;
  border-radius: 28px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--panel-border);
  box-shadow: 0 20px 36px rgba(0, 0, 0, 0.22);
}

.quiz-sign-image {
  display: block;
  width: 100%;
  height: auto;
  max-height: 620px;
  object-fit: contain;
  background: rgba(255,255,255,0.02);
}

.round-text {
  margin-top: 12px;
  font-size: 1.15rem;
  color: var(--text-soft);
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.option-btn {
  border: none;
  cursor: pointer;
  padding: 22px;
  border-radius: 22px;
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 900;
  color: white;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--panel-border);
  transition: all 0.2s ease;
}

.option-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.1);
}

.option-btn:disabled {
  cursor: default;
  opacity: 0.95;
}

.option-btn.correct {
  background: rgba(34, 197, 94, 0.18);
  border-color: rgba(34, 197, 94, 0.4);
}

.option-btn.wrong {
  background: rgba(239, 68, 68, 0.16);
  border-color: rgba(239, 68, 68, 0.4);
}

.feedback-message {
  min-height: 32px;
  margin-top: 18px;
  text-align: center;
  font-size: 1.05rem;
  font-weight: 700;
}

.feedback-message.success {
  color: #86efac;
}

.feedback-message.error {
  color: #fca5a5;
}

.final-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 24px 0;
}

.final-box {
  padding: 22px;
  border-radius: 24px;
  text-align: center;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--panel-border);
}

.final-box span {
  display: block;
  color: var(--text-soft);
  margin-bottom: 10px;
}

.final-box strong {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
}

.final-message {
  text-align: center;
  font-size: 1.05rem;
  color: var(--text-soft);
  line-height: 1.7;
}

.end-actions {
  display: flex;
  justify-content: center;
  margin-top: 22px;
}

/* MEMORAMA */
.memory-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.memory-card {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  perspective: 1000px;
  cursor: pointer;
  border: none;
  background: transparent;
  padding: 0;
}

.memory-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.5s ease;
  transform-style: preserve-3d;
}

.memory-card.flipped .memory-card-inner,
.memory-card.matched .memory-card-inner {
  transform: rotateY(180deg);
}

.memory-face {
  position: absolute;
  inset: 0;
  border-radius: 22px;
  backface-visibility: hidden;
  overflow: hidden;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.2);
}

.memory-front {
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at top left, rgba(80, 170, 255, 0.18), transparent 35%),
    linear-gradient(135deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid var(--panel-border);
}

.memory-front-symbol {
  font-size: 2.2rem;
}

.memory-back {
  transform: rotateY(180deg);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--panel-border);
}

.memory-image-card {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.memory-image-label {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 8px 10px;
  text-align: center;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.memory-image-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

.memory-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
}

.memory-text-card {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  color: white;
  letter-spacing: 1px;
  background:
    radial-gradient(circle at top right, rgba(59, 130, 246, 0.18), transparent 35%),
    linear-gradient(145deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
}

.memory-card.matched .memory-face {
  box-shadow:
    0 0 0 1px rgba(34, 197, 94, 0.18),
    0 12px 28px rgba(34, 197, 94, 0.12);
}

/* ESCRIBE LA PALABRA CON SEÑAS */
.word-target-label,
.word-answer-label {
  margin-top: 10px;
  color: var(--text-soft);
  font-size: 1rem;
}

.word-target-display {
  margin: 10px auto;
  padding: 16px 18px;
  max-width: 680px;
  border-radius: 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--panel-border);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: 4px;
  text-align: center;
}

.word-sign-pool {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.word-sign-btn {
  border: none;
  cursor: pointer;
  padding: 10px;
  border-radius: 20px;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--panel-border);
  transition: all 0.2s ease;
}

.word-sign-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  background: rgba(255,255,255,0.1);
}

.word-sign-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.word-sign-btn img {
  width: 100%;
  height: 120px;
  object-fit: contain;
  display: block;
  border-radius: 14px;
  background: rgba(255,255,255,0.03);
}

.word-sign-label {
  margin-top: 8px;
  text-align: center;
  font-weight: 800;
  font-size: 0.95rem;
  color: white;
}

.word-answer-signs {
  margin: 12px auto;
  min-height: 120px;
  max-width: 760px;
  padding: 14px;
  border-radius: 22px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--panel-border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  align-items: center;
}

.word-answer-placeholder {
  color: rgba(255,255,255,0.45);
  font-weight: 700;
  font-size: 1rem;
}

.word-answer-chip {
  width: 90px;
  border-radius: 16px;
  padding: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--panel-border);
}

.word-answer-chip img {
  width: 100%;
  height: 70px;
  object-fit: contain;
  display: block;
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
}

.word-answer-chip span {
  display: block;
  text-align: center;
  margin-top: 6px;
  font-size: 0.8rem;
  font-weight: 800;
}

.word-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.app-footer {
  text-align: center;
  padding: 10px 0 0;
  color: rgba(255,255,255,0.65);
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .games-grid {
    grid-template-columns: 1fr;
  }

  .memory-board {
    grid-template-columns: repeat(3, minmax(100px, 1fr));
  }

  .word-sign-pool {
    grid-template-columns: repeat(3, minmax(120px, 1fr));
  }
}

@media (max-width: 768px) {
  .app-container {
    width: min(94%, 100%);
  }

  .menu-card,
  .start-card,
  .game-card,
  .end-card {
    padding: 18px;
    border-radius: 22px;
  }

  .top-stats,
  .final-stats {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .options-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .question-crop-wrap {
    border-radius: 22px;
  }

  .game-tile {
    padding: 18px;
    border-radius: 20px;
  }

  .game-icon {
    font-size: 1.7rem;
  }

  .game-tile h3 {
    font-size: 1.15rem;
  }

  .word-sign-pool {
    grid-template-columns: repeat(2, minmax(120px, 1fr));
  }
}

@media (max-width: 640px) {
  .memory-board {
    grid-template-columns: repeat(2, minmax(120px, 1fr));
    gap: 12px;
  }

  .memory-face {
    border-radius: 18px;
  }

  .memory-front-symbol {
    font-size: 1.8rem;
  }

  .memory-text-card {
    font-size: 2rem;
  }

  .memory-image-label {
    font-size: 0.72rem;
    padding: 6px 8px;
  }

  .word-sign-btn img {
    height: 95px;
  }

  .word-answer-chip {
    width: 74px;
  }

  .word-answer-chip img {
    height: 55px;
  }

  .word-target-display {
    letter-spacing: 2px;
  }
}
/* =========================
   VOLVER AL TRADUCTOR
========================= */
.back-home-link {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}