/* ===== CSS Variables ===== */
:root {
  --bg-dark: #1a1410;
  --bg-medium: #2d2218;
  --bg-board: #3a2a1a;
  --bg-board-border: #4a3828;
  --cream: #e8d5b0;
  --cream-light: #f2e6cc;
  --amber: #d4863c;
  --amber-hover: #e09548;
  --gold: #f0c040;
  --gold-dim: #b8943a;
  --red: #a04030;
  --red-hover: #b84a3a;
  --text-light: #e8d5b0;
  --text-muted: #8a7a6a;
  --text-dark: #2d2218;

  --font-display: 'Cinzel', serif;
  --font-ui: 'Inter', sans-serif;

  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-deep: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-inset: inset 0 2px 4px rgba(0, 0, 0, 0.4);

  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 600ms ease;

  --dice-size: 72px;
  --dice-pip: 12px;
  --tile-size: 48px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-ui);
  background: var(--bg-dark);
  background-image:
    radial-gradient(ellipse at 50% 0%, rgba(212, 134, 60, 0.08) 0%, transparent 60%),
    linear-gradient(180deg, var(--bg-dark) 0%, #0f0d0a 100%);
  color: var(--text-light);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  -webkit-font-smoothing: antialiased;
}

/* ===== Game Wrapper ===== */
.game-wrapper {
  width: 100%;
  max-width: 520px;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

/* ===== Game Board ===== */
.game-board {
  position: relative;
  background:
    linear-gradient(145deg, #3e2e1e 0%, var(--bg-board) 40%, #2e1e10 100%);
  border: 3px solid var(--bg-board-border);
  border-radius: 16px;
  padding: 32px 24px;
  width: 100%;
  box-shadow:
    var(--shadow-deep),
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 0 60px rgba(212, 134, 60, 0.06);
}

.game-board::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  bottom: 8px;
  border: 1px solid rgba(232, 213, 176, 0.08);
  border-radius: 10px;
  pointer-events: none;
}

/* ===== Title ===== */
h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 3.5rem;
  letter-spacing: 0.3em;
  color: var(--cream);
  text-shadow:
    0 2px 4px rgba(0, 0, 0, 0.5),
    0 0 30px rgba(212, 134, 60, 0.15);
  margin-bottom: 4px;
  padding-right: -0.3em;
}

.subtitle {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

/* ===== Numbers Section ===== */
.numbers-section {
  margin-bottom: 28px;
}

#numbers-container {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--tile-size);
  height: var(--tile-size);
  border-radius: 8px;
  font-family: var(--font-ui);
  font-size: 1.25rem;
  font-weight: 700;
  transition:
    transform var(--transition-normal),
    opacity var(--transition-normal),
    background-color var(--transition-normal),
    box-shadow var(--transition-normal),
    color var(--transition-normal);
  user-select: none;

  /* Achieved state (default) */
  background-color: rgba(0, 0, 0, 0.3);
  color: rgba(232, 213, 176, 0.2);
  box-shadow: var(--shadow-inset);
  opacity: 0.5;
  transform: scale(0.95);
}

.number.missing {
  /* Needed / active */
  background-color: var(--cream);
  color: var(--text-dark);
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
  opacity: 1;
  transform: scale(1);
  cursor: default;
}

.number.missing:hover {
  transform: scale(1.08);
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.number.just-achieved {
  animation: tileFlip 600ms ease forwards;
}

@keyframes tileFlip {
  0% {
    transform: scale(1) rotateY(0deg);
    background-color: var(--cream);
    color: var(--text-dark);
    opacity: 1;
  }
  50% {
    transform: scale(1.1) rotateY(90deg);
    opacity: 0.7;
  }
  100% {
    transform: scale(0.95) rotateY(0deg);
    background-color: rgba(0, 0, 0, 0.3);
    color: rgba(232, 213, 176, 0.2);
    opacity: 0.5;
  }
}

/* ===== Dice Section ===== */
.dice-section {
  margin-bottom: 24px;
}

.dice-container {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 12px;
}

.dice {
  position: relative;
  width: var(--dice-size);
  height: var(--dice-size);
  background: linear-gradient(145deg, #f5f0e8 0%, #e0d5c5 100%);
  border-radius: 12px;
  box-shadow:
    0 4px 8px rgba(0, 0, 0, 0.3),
    0 1px 2px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  transition: transform var(--transition-fast);
}

.dice::after {
  content: '';
  position: absolute;
  width: var(--dice-pip);
  height: var(--dice-pip);
  background: #2d2218;
  border-radius: 50%;
  top: calc(50% - var(--dice-pip) / 2);
  left: calc(50% - var(--dice-pip) / 2);
  transition: opacity var(--transition-fast);
}

/* Pip positions using box-shadow on ::after
   Grid positions (relative to center pip):
   TL: -20px -20px  TC: 0 -20px  TR: 20px -20px
   ML: -20px 0      MC: 0 0      MR: 20px 0
   BL: -20px 20px   BC: 0 20px   BR: 20px 20px
*/

.dice[data-value="1"]::after {
  /* Center only */
  box-shadow: none;
}

.dice[data-value="2"]::after {
  /* TR + BL */
  background: transparent;
  box-shadow:
    20px -20px 0 0 #2d2218,
    -20px 20px 0 0 #2d2218;
}

.dice[data-value="3"]::after {
  /* TR + center + BL */
  box-shadow:
    20px -20px 0 0 #2d2218,
    -20px 20px 0 0 #2d2218;
}

.dice[data-value="4"]::after {
  /* TL + TR + BL + BR */
  background: transparent;
  box-shadow:
    -20px -20px 0 0 #2d2218,
    20px -20px 0 0 #2d2218,
    -20px 20px 0 0 #2d2218,
    20px 20px 0 0 #2d2218;
}

.dice[data-value="5"]::after {
  /* TL + TR + center + BL + BR */
  box-shadow:
    -20px -20px 0 0 #2d2218,
    20px -20px 0 0 #2d2218,
    -20px 20px 0 0 #2d2218,
    20px 20px 0 0 #2d2218;
}

.dice[data-value="6"]::after {
  /* TL + TR + ML + MR + BL + BR */
  background: transparent;
  box-shadow:
    -20px -20px 0 0 #2d2218,
    20px -20px 0 0 #2d2218,
    -20px 0 0 0 #2d2218,
    20px 0 0 0 #2d2218,
    -20px 20px 0 0 #2d2218,
    20px 20px 0 0 #2d2218;
}

/* Rolling animation */
.dice.rolling {
  animation: diceRoll 600ms ease-in-out;
}

.dice.rolling::after {
  opacity: 0;
}

@keyframes diceRoll {
  0% {
    transform: rotate(0deg) scale(1);
  }
  25% {
    transform: rotate(180deg) scale(0.85);
  }
  50% {
    transform: rotate(360deg) scale(1.1);
  }
  75% {
    transform: rotate(540deg) scale(0.9);
  }
  100% {
    transform: rotate(720deg) scale(1);
  }
}

/* Landed animation */
.dice.landed {
  animation: diceLand 300ms ease-out;
}

@keyframes diceLand {
  0% {
    transform: scale(1.1);
  }
  50% {
    transform: scale(0.92);
  }
  100% {
    transform: scale(1);
  }
}

/* ===== Roll Counter ===== */
.roll-counter {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.roll-counter .bump {
  animation: counterBump 300ms ease;
}

@keyframes counterBump {
  0% { transform: scale(1); }
  50% { transform: scale(1.4); color: var(--cream); }
  100% { transform: scale(1); }
}

#rollCounterValue {
  display: inline-block;
  font-weight: 700;
}

/* ===== Buttons ===== */
.actions-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

#chooseButtons {
  display: flex;
  gap: 10px;
}

#chooseButtons.hidden {
  display: none;
}

.button {
  position: relative;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 28px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
  overflow: hidden;
  min-width: 48px;
  min-height: 48px;
}

.button:hover {
  transform: translateY(-2px);
}

.button:active {
  transform: translateY(1px);
}

/* Primary (amber) */
.button.primary {
  background: linear-gradient(180deg, var(--amber-hover) 0%, var(--amber) 100%);
  color: #fff;
  box-shadow: 0 3px 10px rgba(212, 134, 60, 0.3);
}

.button.primary:hover {
  background: linear-gradient(180deg, #eba055 0%, var(--amber-hover) 100%);
  box-shadow: 0 5px 16px rgba(212, 134, 60, 0.4);
}

/* Secondary (gold-brown) */
.button.secondary {
  background: linear-gradient(180deg, #5a4530 0%, #4a3828 100%);
  color: var(--cream);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.button.secondary:hover {
  background: linear-gradient(180deg, #6a5540 0%, #5a4530 100%);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

/* Danger (red) - with pulse */
.button.danger {
  background: linear-gradient(180deg, var(--red-hover) 0%, var(--red) 100%);
  color: #fff;
  box-shadow: 0 3px 10px rgba(160, 64, 48, 0.3);
  animation: pulseDanger 2s ease-in-out infinite;
}

.button.danger:hover {
  background: linear-gradient(180deg, #c85444 0%, var(--red-hover) 100%);
  box-shadow: 0 5px 16px rgba(160, 64, 48, 0.4);
  animation: none;
}

@keyframes pulseDanger {
  0%, 100% { box-shadow: 0 3px 10px rgba(160, 64, 48, 0.3); }
  50% { box-shadow: 0 3px 20px rgba(160, 64, 48, 0.6); }
}

/* Disabled */
.button:disabled {
  background: #2a2420;
  color: #5a5048;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.button:disabled:hover {
  background: #2a2420;
  color: #5a5048;
  transform: none;
  box-shadow: none;
}

/* Ripple effect */
.button::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 400ms ease, height 400ms ease, opacity 400ms ease;
  opacity: 0;
}

.button:active::after {
  width: 200px;
  height: 200px;
  opacity: 1;
  transition: none;
}

/* ===== Modal / Overlay ===== */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 8, 5, 0.85);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 9999;
  display: none;
  justify-content: center;
  align-items: center;
}

.popup {
  background:
    linear-gradient(145deg, #3e2e1e 0%, var(--bg-board) 50%, #2e1e10 100%);
  border: 2px solid var(--bg-board-border);
  padding: 2.5rem 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow-deep), 0 0 60px rgba(240, 192, 64, 0.1);
  text-align: center;
  max-width: 360px;
  width: 90%;
  animation: popupBounce 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes popupBounce {
  0% {
    transform: scale(0.5);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.popup-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  animation: iconBounce 600ms ease infinite alternate;
  animation-delay: 500ms;
}

@keyframes iconBounce {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

.popup h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
  margin-bottom: 0.75rem;
}

.popup p {
  font-size: 1.1rem;
  color: var(--cream);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.popup button {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  padding: 12px 28px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  background: linear-gradient(180deg, var(--amber-hover) 0%, var(--amber) 100%);
  color: #fff;
  box-shadow: 0 3px 10px rgba(212, 134, 60, 0.3);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.popup button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(212, 134, 60, 0.4);
}

/* Confetti particles */
.popup::before,
.popup::after {
  content: '';
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  opacity: 0;
}

.overlay[style*="flex"] .popup::before {
  animation: confettiLeft 2s ease-out 300ms forwards;
  box-shadow:
    -30px -60px 0 var(--gold),
    -60px -30px 0 var(--amber),
    -20px -90px 0 var(--cream),
    -80px -50px 0 var(--gold),
    -50px -80px 0 var(--amber);
}

.overlay[style*="flex"] .popup::after {
  animation: confettiRight 2s ease-out 300ms forwards;
  box-shadow:
    30px -60px 0 var(--gold),
    60px -30px 0 var(--amber),
    20px -90px 0 var(--cream),
    80px -50px 0 var(--gold),
    50px -80px 0 var(--amber);
}

@keyframes confettiLeft {
  0% { opacity: 0; transform: translateY(0); }
  20% { opacity: 1; }
  100% { opacity: 0; transform: translateY(120px); }
}

@keyframes confettiRight {
  0% { opacity: 0; transform: translateY(0); }
  20% { opacity: 1; }
  100% { opacity: 0; transform: translateY(120px); }
}

/* ===== Footer ===== */
.game-footer {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  opacity: 0.7;
}

/* ===== Utility ===== */
.hidden {
  display: none !important;
}

/* ===== Responsive ===== */

/* Small phones */
@media (max-width: 360px) {
  :root {
    --dice-size: 56px;
    --dice-pip: 9px;
    --tile-size: 40px;
  }

  h1 {
    font-size: 2.5rem;
  }

  .game-board {
    padding: 24px 16px;
  }

  .dice[data-value="2"]::after {
    box-shadow:
      16px -16px 0 0 #2d2218,
      -16px 16px 0 0 #2d2218;
  }
  .dice[data-value="3"]::after {
    box-shadow:
      16px -16px 0 0 #2d2218,
      -16px 16px 0 0 #2d2218;
  }
  .dice[data-value="4"]::after {
    background: transparent;
    box-shadow:
      -16px -16px 0 0 #2d2218,
      16px -16px 0 0 #2d2218,
      -16px 16px 0 0 #2d2218,
      16px 16px 0 0 #2d2218;
  }
  .dice[data-value="5"]::after {
    box-shadow:
      -16px -16px 0 0 #2d2218,
      16px -16px 0 0 #2d2218,
      -16px 16px 0 0 #2d2218,
      16px 16px 0 0 #2d2218;
  }
  .dice[data-value="6"]::after {
    background: transparent;
    box-shadow:
      -16px -16px 0 0 #2d2218,
      16px -16px 0 0 #2d2218,
      -16px 0 0 0 #2d2218,
      16px 0 0 0 #2d2218,
      -16px 16px 0 0 #2d2218,
      16px 16px 0 0 #2d2218;
  }

  .button {
    padding: 12px 20px;
    font-size: 0.9rem;
  }
}

/* Tablets */
@media (min-width: 600px) {
  :root {
    --dice-size: 80px;
    --dice-pip: 13px;
    --tile-size: 52px;
  }

  h1 {
    font-size: 4rem;
  }

  .game-board {
    padding: 40px 32px;
  }

  #numbers-container {
    gap: 10px;
  }

  .dice-container {
    gap: 32px;
  }

  .dice[data-value="2"]::after {
    box-shadow:
      22px -22px 0 0 #2d2218,
      -22px 22px 0 0 #2d2218;
  }
  .dice[data-value="3"]::after {
    box-shadow:
      22px -22px 0 0 #2d2218,
      -22px 22px 0 0 #2d2218;
  }
  .dice[data-value="4"]::after {
    background: transparent;
    box-shadow:
      -22px -22px 0 0 #2d2218,
      22px -22px 0 0 #2d2218,
      -22px 22px 0 0 #2d2218,
      22px 22px 0 0 #2d2218;
  }
  .dice[data-value="5"]::after {
    box-shadow:
      -22px -22px 0 0 #2d2218,
      22px -22px 0 0 #2d2218,
      -22px 22px 0 0 #2d2218,
      22px 22px 0 0 #2d2218;
  }
  .dice[data-value="6"]::after {
    background: transparent;
    box-shadow:
      -22px -22px 0 0 #2d2218,
      22px -22px 0 0 #2d2218,
      -22px 0 0 0 #2d2218,
      22px 0 0 0 #2d2218,
      -22px 22px 0 0 #2d2218,
      22px 22px 0 0 #2d2218;
  }
}

/* Desktop */
@media (min-width: 900px) {
  :root {
    --dice-size: 88px;
    --dice-pip: 14px;
    --tile-size: 56px;
  }

  .dice[data-value="2"]::after {
    box-shadow:
      24px -24px 0 0 #2d2218,
      -24px 24px 0 0 #2d2218;
  }
  .dice[data-value="3"]::after {
    box-shadow:
      24px -24px 0 0 #2d2218,
      -24px 24px 0 0 #2d2218;
  }
  .dice[data-value="4"]::after {
    background: transparent;
    box-shadow:
      -24px -24px 0 0 #2d2218,
      24px -24px 0 0 #2d2218,
      -24px 24px 0 0 #2d2218,
      24px 24px 0 0 #2d2218;
  }
  .dice[data-value="5"]::after {
    box-shadow:
      -24px -24px 0 0 #2d2218,
      24px -24px 0 0 #2d2218,
      -24px 24px 0 0 #2d2218,
      24px 24px 0 0 #2d2218;
  }
  .dice[data-value="6"]::after {
    background: transparent;
    box-shadow:
      -24px -24px 0 0 #2d2218,
      24px -24px 0 0 #2d2218,
      -24px 0 0 0 #2d2218,
      24px 0 0 0 #2d2218,
      -24px 24px 0 0 #2d2218,
      24px 24px 0 0 #2d2218;
  }

  .number {
    font-size: 1.4rem;
  }
}

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