/* NUMPAD TRAINER STYLES (Clean WASD Trainer Parity) */

:root {
  --preview-key-bg: rgba(255, 255, 255, 0.05);
  --preview-key-border: rgba(255, 255, 255, 0.1);
  --box-bg: var(--color-surface, rgba(0, 0, 0, 0.2));
  --box-border: var(--card-border, var(--color-outline, rgba(255, 255, 255, 0.08)));
  --overlay-bg: rgba(10, 15, 25, 0.85);
  --key-bg: var(--color-surface-variant, rgba(255, 255, 255, 0.03));
  --key-border: var(--color-outline, rgba(255, 255, 255, 0.08));
  --key-shadow: var(--color-outline);
}

html.light {
  --preview-key-bg: rgba(15, 23, 42, 0.05);
  --preview-key-border: rgba(15, 23, 42, 0.15);
  --box-bg: rgba(15, 23, 42, 0.02);
  --box-border: rgba(15, 23, 42, 0.08);
  --overlay-bg: rgba(255, 255, 255, 0.93);
  --key-bg: rgba(15, 23, 42, 0.03);
  --key-border: rgba(15, 23, 42, 0.08);
  --key-shadow: rgba(15, 23, 42, 0.1);
}

.numpad-box {
  position: relative;
  width: 100% !important;
  min-height: 480px;
  margin: 20px 0 !important;
  background: var(--box-bg);
  border-top: 1.5px solid var(--box-border) !important;
  border-bottom: 1.5px solid var(--box-border) !important;
  border-left: none !important;
  border-right: none !important;
  border-radius: 0 !important;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

/* Numpad Keypad Layout — Centered & Clean matching WASD Trainer */
.numpad-keyboard-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 90%;
  height: 90%;
  max-width: 380px;
  max-height: 380px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.numpad-keyboard-row {
  display: flex;
  gap: 10px;
}

.numpad-key {
  width: 68px;
  height: 68px;
  background: var(--key-bg);
  border: 2px solid var(--key-border);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-h, sans-serif);
  font-size: 18px;
  font-weight: 800;
  color: var(--text-muted);
  transition: all 0.1s ease;
  user-select: none;
  box-shadow: 0 3px 0 var(--key-shadow);
  cursor: pointer;
}

.numpad-key .key-lbl {
  transform: translateY(0);
}

.numpad-key.active {
  background: rgba(0, 240, 255, 0.1);
  border-color: #00f0ff;
  color: #00f0ff;
  box-shadow: 0 3px 0 #0098a6, 0 0 16px rgba(0, 240, 255, 0.25);
}

.numpad-key.pressed {
  transform: translateY(3px);
  box-shadow: 0 0 0 transparent !important;
}

.numpad-key.pressed.correct {
  background: #00f0ff;
  border-color: #ffffff;
  color: #050b14;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.6) !important;
}

.numpad-key.pressed.wrong {
  background: #ef4444;
  border-color: #f87171;
  color: white;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.5) !important;
}

.numpad-keyboard-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 8px;
  font-weight: 500;
  text-align: center;
}

/* Play Arena Overlay */
.numpad-overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  background: var(--overlay-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.numpad-overlay-inner {
  text-align: center;
}

/* Preview Arena in Intro */
.numpad-preview-arena {
  width: 140px;
  height: 140px;
  margin: 20px auto 10px;
  border: 1px dashed var(--box-border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: transparent;
}

.numpad-preview-keyboard {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.numpad-preview-row {
  display: flex;
  gap: 6px;
}

.numpad-preview-key {
  width: 32px;
  height: 32px;
  background: var(--preview-key-bg);
  border: 1px solid var(--preview-key-border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-h, sans-serif);
  font-size: 11px;
  font-weight: 800;
  color: var(--text-muted);
  transition: all 0.15s ease;
}

/* Preview key animations */
.numpad-preview-key.key-7 { animation: preview-num-7 5.4s infinite ease-in-out; }
.numpad-preview-key.key-5 { animation: preview-num-5 5.4s infinite ease-in-out; }
.numpad-preview-key.key-9 { animation: preview-num-9 5.4s infinite ease-in-out; }
.numpad-preview-key.key-2 { animation: preview-num-2 5.4s infinite ease-in-out; }
.numpad-preview-key.key-4 { animation: preview-num-4 5.4s infinite ease-in-out; }

@keyframes preview-num-7 {
  0%, 8% {
    background: rgba(0, 240, 255, 0.2);
    border-color: #00f0ff;
    color: #00f0ff;
    transform: scale(1.0);
  }
  9%, 12% {
    background: #00f0ff;
    border-color: white;
    color: #050b14;
    transform: scale(0.92);
  }
  12.1%, 100% {
    background: var(--preview-key-bg);
    border-color: var(--preview-key-border);
    color: var(--text-muted);
    transform: scale(1.0);
  }
}

@keyframes preview-num-5 {
  0%, 19% {
    background: var(--preview-key-bg);
    border-color: var(--preview-key-border);
    color: var(--text-muted);
    transform: scale(1.0);
  }
  20%, 28% {
    background: rgba(0, 240, 255, 0.2);
    border-color: #00f0ff;
    color: #00f0ff;
    transform: scale(1.0);
  }
  29%, 32% {
    background: #00f0ff;
    border-color: white;
    color: #050b14;
    transform: scale(0.92);
  }
  32.1%, 100% {
    background: var(--preview-key-bg);
    border-color: var(--preview-key-border);
    color: var(--text-muted);
    transform: scale(1.0);
  }
}

@keyframes preview-num-9 {
  0%, 39% {
    background: var(--preview-key-bg);
    border-color: var(--preview-key-border);
    color: var(--text-muted);
    transform: scale(1.0);
  }
  40%, 48% {
    background: rgba(0, 240, 255, 0.2);
    border-color: #00f0ff;
    color: #00f0ff;
    transform: scale(1.0);
  }
  49%, 52% {
    background: #00f0ff;
    border-color: white;
    color: #050b14;
    transform: scale(0.92);
  }
  52.1%, 100% {
    background: var(--preview-key-bg);
    border-color: var(--preview-key-border);
    color: var(--text-muted);
    transform: scale(1.0);
  }
}

@keyframes preview-num-2 {
  0%, 59% {
    background: var(--preview-key-bg);
    border-color: var(--preview-key-border);
    color: var(--text-muted);
    transform: scale(1.0);
  }
  60%, 68% {
    background: rgba(0, 240, 255, 0.2);
    border-color: #00f0ff;
    color: #00f0ff;
    transform: scale(1.0);
  }
  69%, 72% {
    background: #00f0ff;
    border-color: white;
    color: #050b14;
    transform: scale(0.92);
  }
  72.1%, 100% {
    background: var(--preview-key-bg);
    border-color: var(--preview-key-border);
    color: var(--text-muted);
    transform: scale(1.0);
  }
}

@keyframes preview-num-4 {
  0%, 79% {
    background: var(--preview-key-bg);
    border-color: var(--preview-key-border);
    color: var(--text-muted);
    transform: scale(1.0);
  }
  80%, 88% {
    background: rgba(0, 240, 255, 0.2);
    border-color: #00f0ff;
    color: #00f0ff;
    transform: scale(1.0);
  }
  89%, 92% {
    background: #00f0ff;
    border-color: white;
    color: #050b14;
    transform: scale(0.92);
  }
  92.1%, 100% {
    background: var(--preview-key-bg);
    border-color: var(--preview-key-border);
    color: var(--text-muted);
    transform: scale(1.0);
  }
}

.numpad-preview-caption {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  max-width: 320px;
  margin: 0 auto 20px;
  line-height: 1.5;
}

/* Safeguard info card text backgrounds */
.t-info-card p,
.t-unified-info-card p,
.t-info-card span,
.t-unified-info-card span,
.t-info-card strong,
.t-unified-info-card strong {
  background: transparent !important;
  background-color: transparent !important;
}

@media (max-width: 480px) {
  .numpad-key {
    width: 60px;
    height: 60px;
    font-size: 16px;
    border-radius: 12px;
  }
  .numpad-keyboard-row {
    gap: 8px;
  }
  .numpad-keyboard-layout {
    gap: 8px;
  }
}