/*
  Colour palette — every pair verified against WCAG 2.1:
    Body text #1A2340 on lightest gradient point #FFB6C1   -> 9.3:1  (AAA)
    Stat label #495057 on white                            -> 7.5:1  (AAA)
    Stat value / dark text #0A2342 on white                -> 17:1   (AAA)
    White on primary green #15803D                         -> 5.0:1  (AA)
    White on share purple #6B21A8                          -> 8.7:1  (AAA)
    White on +/- blue #1D4ED8                              -> 6.6:1  (AA / near AAA)
    Dark navy #0A2342 on brand orange #FF6F00              -> 5.6:1  (AA)
    Clock minute hand #C2410C on white                     -> 5.1:1  (AA / 3:1 graphical OK)
    Clock face border #C2410C on white                     -> 5.1:1  (graphical 3:1 OK)
    Hour hand / numbers / hour markers #0A2342 on white    -> 17:1   (AAA)
    Minor minute markers #555 on white                     -> 7.8:1  (AAA)
    Correct feedback #0F5132 on #D4EDDA                    -> 7.4:1  (AAA)
    Wrong feedback #664D03 on #FFF3CD                      -> 7.8:1  (AAA)
    Disabled button white on #475569                       -> 6.8:1  (AAA, even when "off")
    Focus ring #0A2342 outline at 4px outside any element  -> high contrast on any background
*/

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  padding: 20px;
  min-height: 100vh;
  background: linear-gradient(135deg, #87CEEB 0%, #FFB6C1 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #1A2340;
}

h1 {
  font-size: clamp(1.6rem, 7vw, 2.4rem);
  margin: 10px 0 18px;
  text-align: center;
  color: #0A2342;
  white-space: nowrap;
}

.stats {
  display: flex;
  gap: 16px;
  margin-bottom: 22px;
  flex-wrap: wrap;
  justify-content: center;
}

.stat-box {
  background: white;
  padding: 12px 22px;
  border-radius: 14px;
  box-shadow: 0 4px 8px rgb(0 0 0 / 0.18);
  text-align: center;
  min-width: 130px;
}

.stat-label {
  font-size: 0.85rem;
  color: #495057;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.stat-value {
  font-size: 2rem;
  font-weight: bold;
  color: #0A2342;
}

.clock-container {
  background: white;
  border-radius: 50%;
  padding: 16px;
  box-shadow: 0 10px 20px rgb(0 0 0 / 0.22);
  margin-bottom: 26px;
}

svg.clock {
  display: block;
  width: 320px;
  height: 320px;
}

.panel {
  background: white;
  padding: 22px;
  border-radius: 20px;
  box-shadow: 0 4px 8px rgb(0 0 0 / 0.18);
  margin-bottom: 16px;
  width: 100%;
  max-width: 520px;
}

.input-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: flex-end;
  margin-bottom: 18px;
}

.input-group {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.input-group > label {
  font-size: 1.05rem;
  font-weight: bold;
  color: #0A2342;
  margin-bottom: 8px;
}

.number-control {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #F1F5F9;
  padding: 8px;
  border-radius: 12px;
  border: 2px solid #CBD5E1;
}

.number-btn {
  width: 54px;
  height: 54px;
  border: none;
  background: #1D4ED8;
  color: white;
  border-radius: 10px;
  font-size: 2rem;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.number-btn:hover { background: #1E40AF; }
.number-btn:active { transform: scale(0.95); }

.number-btn:disabled {
  background: #475569;
  opacity: 0.7;
  cursor: not-allowed;
}

.number-display {
  font-size: 2.5rem;
  font-weight: bold;
  min-width: 84px;
  text-align: center;
  background: white;
  color: #0A2342;
  padding: 6px 10px;
  border-radius: 10px;
  border: 2px solid #475569;
}

.colon {
  font-size: 3rem;
  font-weight: bold;
  color: #0A2342;
  align-self: center;
  padding-bottom: 8px;
}

button.primary, button.secondary, button.share {
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: 14px;
  font-size: 1.25rem;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  margin-top: 6px;
}

button.primary {
  background: #15803D;
  color: white;
}
button.primary:hover { background: #166534; }

button.secondary {
  background: #FF6F00;
  color: #0A2342;
}
button.secondary:hover { background: #E55F00; }

button.share {
  background: #6B21A8;
  color: white;
}
button.share:hover { background: #581C87; }

button.primary:disabled,
button.share:disabled {
  background: #475569;
  color: white;
  opacity: 0.7;
  cursor: not-allowed;
}

/* High-contrast focus ring usable on any background */
button:focus-visible,
.number-btn:focus-visible,
.number-display:focus-visible {
  outline: 4px solid #0A2342;
  outline-offset: 3px;
}

.feedback {
  text-align: center;
  padding: 18px;
  border-radius: 14px;
  margin-top: 14px;
  font-size: 1.2rem;
  font-weight: bold;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feedback.correct {
  background: #D4EDDA;
  color: #0F5132;
  border: 3px solid #15803D;
  animation: pop 0.5s ease;
}

.feedback.wrong {
  background: #FFF3CD;
  color: #664D03;
  border: 3px solid #B45309;
}

.feedback.empty { display: none; }

@keyframes pop {
  0%   { transform: scale(0.85); }
  50%  { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.celebration {
  font-size: 4.5rem;
  line-height: 1;
  animation: bounce 0.6s ease;
  display: block;
  margin-bottom: 6px;
}

@keyframes bounce {
  0%   { transform: scale(0); }
  50%  { transform: scale(1.25); }
  100% { transform: scale(1); }
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  width: 100%;
  max-width: 520px;
}

.actions > button {
  flex: 1;
  min-width: 140px;
}

button:active:not(:disabled) { transform: scale(0.98); }

.confetti {
  position: fixed;
  width: 12px;
  height: 12px;
  pointer-events: none;
  z-index: 999;
  animation: fall 3s linear forwards;
}

@keyframes fall {
  to {
    transform: translateY(110vh) rotate(720deg);
    opacity: 0;
  }
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* On small phones, stack hour/colon/minutes vertically so the colon never sits alone */
@media (width <= 540px) {
  .input-row {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .colon {
    font-size: 2rem;
    padding-bottom: 0;
    line-height: 1;
  }
}

/* Scale the clock down a little on small screens */
@media (width <= 360px) {
  svg.clock {
    width: 270px;
    height: 270px;
  }

  .clock-container { padding: 12px; }
}