/* ==========================================
   Night Roulette — Dark Fantasy Theme
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;700;900&family=Noto+Sans+JP:wght@400;500;700&display=swap');

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121c;
  --bg-card: #1a1a2e;
  --bg-card-hover: #222240;
  --gold: #c8a84e;
  --gold-bright: #f0d060;
  --gold-dim: #8a6d2b;
  --text-primary: #e8e6e3;
  --text-secondary: #9a9a9a;
  --text-muted: #5a5a6a;
  --border: #2a2a3e;
  --border-gold: rgba(200, 168, 78, 0.3);
  --danger: #c0392b;
  --shadow-gold: 0 0 20px rgba(200, 168, 78, 0.15);
  --shadow-deep: 0 8px 32px rgba(0, 0, 0, 0.6);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* --- Background Particles --- */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(200, 168, 78, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(100, 60, 180, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(200, 168, 78, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* --- Container --- */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  position: relative;
  z-index: 1;
}

/* --- Header --- */
header {
  text-align: center;
  margin-bottom: 2.5rem;
}

header h1 {
  font-family: 'Cinzel', serif;
  font-size: 2.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold), var(--gold-dim));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.08em;
  text-shadow: none;
  filter: drop-shadow(0 0 20px rgba(200, 168, 78, 0.3));
  margin-bottom: 0.5rem;
}

header .subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 400;
}

header .game-title {
  font-family: 'Cinzel', serif;
  font-size: 0.8rem;
  color: var(--gold-dim);
  letter-spacing: 0.2em;
  margin-top: 0.3rem;
}

/* --- Slot Machine --- */
.slot-machine {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin-bottom: 2rem;
  perspective: 800px;
}

.reel-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 1rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s, box-shadow 0.4s, transform 0.4s;
}

.reel-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
      rgba(200, 168, 78, 0.08) 0%,
      transparent 25%,
      transparent 75%,
      rgba(200, 168, 78, 0.08) 100%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.reel-container.spinning::before {
  opacity: 1;
}

.reel-container.stopped {
  border-color: var(--gold);
  box-shadow:
    0 0 20px rgba(200, 168, 78, 0.25),
    0 0 60px rgba(200, 168, 78, 0.1),
    inset 0 0 30px rgba(200, 168, 78, 0.05);
  transform: scale(1.02);
}

.reel-label {
  font-family: 'Cinzel', serif;
  font-size: 0.75rem;
  color: var(--gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  position: relative;
}

/* --- Reel Window (Vertical Scroll Effect) --- */
.reel-window {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.reel-window::before,
.reel-window::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 25px;
  z-index: 2;
  pointer-events: none;
}

.reel-window::before {
  top: 0;
  background: linear-gradient(to bottom, var(--bg-card), transparent);
}

.reel-window::after {
  bottom: 0;
  background: linear-gradient(to top, var(--bg-card), transparent);
}

.reel-track {
  position: relative;
  width: 100%;
}

.reel-content {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 90px;
}

.reel-content.spinning {
  animation: reelScroll 0.12s linear infinite;
}

.reel-content.flash {
  animation: flashReveal 0.8s ease-out;
}

/* --- Reel Animations --- */
@keyframes reelScroll {
  0% {
    transform: translateY(-10px);
    opacity: 0.4;
  }

  30% {
    opacity: 1;
  }

  70% {
    opacity: 1;
  }

  100% {
    transform: translateY(10px);
    opacity: 0.4;
  }
}

@keyframes flashReveal {
  0% {
    color: #fff;
    text-shadow:
      0 0 40px rgba(200, 168, 78, 1),
      0 0 80px rgba(200, 168, 78, 0.6),
      0 0 120px rgba(200, 168, 78, 0.3);
    transform: scale(1.3);
  }

  30% {
    color: var(--gold-bright);
    text-shadow:
      0 0 30px rgba(200, 168, 78, 0.8),
      0 0 60px rgba(200, 168, 78, 0.4);
    transform: scale(1.1);
  }

  100% {
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(200, 168, 78, 0.2);
    transform: scale(1);
  }
}

@keyframes borderPulse {
  0% {
    border-color: #fff;
    box-shadow: 0 0 40px rgba(200, 168, 78, 0.6), 0 0 80px rgba(200, 168, 78, 0.3);
  }

  100% {
    border-color: var(--gold);
    box-shadow: 0 0 20px rgba(200, 168, 78, 0.25), 0 0 60px rgba(200, 168, 78, 0.1);
  }
}

.reel-container.flash-border {
  animation: borderPulse 0.8s ease-out;
}

/* --- Spark Particles --- */
.spark-container {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 10;
}

.spark {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--gold-bright);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--gold-bright), 0 0 12px var(--gold);
  animation: sparkFly 0.8s ease-out forwards;
}

@keyframes sparkFly {
  0% {
    transform: translate(0, 0) scale(1);
    opacity: 1;
  }

  100% {
    transform: translate(var(--sx), var(--sy)) scale(0);
    opacity: 0;
  }
}

/* --- Full-screen Flash Overlay --- */
.flash-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(200, 168, 78, 0.15), transparent 70%);
  pointer-events: none;
  z-index: 100;
  opacity: 0;
  transition: opacity 0.1s;
}

.flash-overlay.active {
  opacity: 1;
  animation: overlayFlash 0.6s ease-out forwards;
}

@keyframes overlayFlash {
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}

/* --- Spin Button --- */
.spin-section {
  text-align: center;
  margin-bottom: 2.5rem;
}

#spin-btn {
  font-family: 'Cinzel', serif;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 1rem 3.5rem;
  background: linear-gradient(135deg, var(--gold-dim), var(--gold), var(--gold-bright));
  color: var(--bg-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
  box-shadow:
    0 4px 20px rgba(200, 168, 78, 0.3),
    0 0 40px rgba(200, 168, 78, 0.1);
}

#spin-btn::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold), var(--gold-dim), var(--gold-bright));
  border-radius: 10px;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s;
}

#spin-btn:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow:
    0 8px 35px rgba(200, 168, 78, 0.5),
    0 0 60px rgba(200, 168, 78, 0.2);
  filter: brightness(1.1);
}

#spin-btn:hover::before {
  opacity: 1;
}

#spin-btn:active {
  transform: translateY(0) scale(0.98);
  filter: brightness(0.95);
}

#spin-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  filter: grayscale(0.5);
  box-shadow: none;
}

/* Sweeping shimmer on button */
#spin-btn::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -100%;
  width: 60%;
  height: 200%;
  background: linear-gradient(100deg,
      transparent 20%,
      rgba(255, 255, 255, 0.25) 50%,
      transparent 80%);
  transform: skewX(-20deg);
  animation: shimmer 3s ease-in-out infinite;
}

#spin-btn:disabled::after {
  animation: none;
}

@keyframes shimmer {

  0%,
  100% {
    left: -100%;
  }

  50% {
    left: 150%;
  }
}

/* Spinning state: pulsing glow */
#spin-btn.is-spinning {
  animation: btnPulse 0.6s ease-in-out infinite alternate;
}

@keyframes btnPulse {
  0% {
    box-shadow: 0 4px 20px rgba(200, 168, 78, 0.2);
    filter: brightness(0.9);
  }

  100% {
    box-shadow: 0 4px 35px rgba(200, 168, 78, 0.5), 0 0 50px rgba(200, 168, 78, 0.2);
    filter: brightness(1.05);
  }
}

/* --- Settings Panel (Accordion) --- */
.settings-panel {
  margin-bottom: 2rem;
}

.settings-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: color 0.3s, border-color 0.3s;
}

.settings-toggle:hover {
  color: var(--gold);
  border-color: var(--border-gold);
}

.settings-toggle .arrow {
  transition: transform 0.3s;
  font-size: 0.7rem;
}

.settings-toggle.open .arrow {
  transform: rotate(180deg);
}

.settings-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 8px 8px;
}

.settings-body.open {
  max-height: 2000px;
  padding: 1.2rem;
}

.settings-category {
  margin-bottom: 1.5rem;
}

.settings-category:last-child {
  margin-bottom: 0;
}

.settings-category h3 {
  font-family: 'Cinzel', serif;
  font-size: 0.85rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-bottom: 0.8rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.select-all-btn {
  font-size: 0.7rem;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.2rem 0.5rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.select-all-btn:hover {
  color: var(--gold);
  border-color: var(--gold-dim);
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.5rem;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s;
}

.checkbox-item:hover {
  background: var(--bg-card-hover);
}

.checkbox-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--text-muted);
  border-radius: 3px;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: border-color 0.2s, background 0.2s;
}

.checkbox-item input[type="checkbox"]:checked {
  background: var(--gold);
  border-color: var(--gold);
}

.checkbox-item input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 11px;
  color: var(--bg-primary);
  font-weight: 700;
}

.checkbox-item label {
  font-size: 0.85rem;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}

/* --- Custom Restriction Add --- */
.custom-add-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.8rem;
}

.custom-add-row input[type="text"] {
  flex: 1;
  padding: 0.5rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: 'Noto Sans JP', sans-serif;
  outline: none;
  transition: border-color 0.2s;
}

.custom-add-row input[type="text"]:focus {
  border-color: var(--gold-dim);
}

.custom-add-row input[type="text"]::placeholder {
  color: var(--text-muted);
}

.add-btn {
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--gold-dim);
  border-radius: 6px;
  color: var(--gold);
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s, border-color 0.2s;
}

.add-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--gold);
}

.remove-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 0 0.3rem;
  transition: color 0.2s;
  flex-shrink: 0;
}

.remove-btn:hover {
  color: var(--danger);
}

.checkbox-item.custom-item {
  background: rgba(200, 168, 78, 0.05);
  border: 1px solid rgba(200, 168, 78, 0.1);
}

/* --- Result Display --- */
.result-display {
  display: none;
  margin-bottom: 2rem;
}

.result-display.visible {
  display: block;
  animation: resultFadeIn 0.6s ease-out;
}

@keyframes resultFadeIn {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow-gold);
  position: relative;
  overflow: hidden;
}

.result-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(200, 168, 78, 0.03), transparent 50%);
  pointer-events: none;
}

.result-card h2 {
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  color: var(--gold);
  text-align: center;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.result-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.result-item {
  text-align: center;
}

.result-item .result-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.result-item .result-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gold-bright);
}

/* --- Footer --- */
footer {
  text-align: center;
  padding: 2rem 0 1rem;
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

footer a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}

footer a:hover {
  color: var(--gold);
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .container {
    padding: 1.5rem 1rem;
  }

  header h1 {
    font-size: 1.8rem;
  }

  .slot-machine {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .reel-container {
    padding: 1.2rem 1rem;
  }

  .reel-window {
    height: 70px;
  }

  .reel-content {
    height: 70px;
  }

  #spin-btn {
    font-size: 1.1rem;
    padding: 0.8rem 2.5rem;
  }

  .checkbox-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .result-items {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }
}

/* --- Shake Animation --- */
@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  20% {
    transform: translateX(-4px);
  }

  40% {
    transform: translateX(4px);
  }

  60% {
    transform: translateX(-3px);
  }

  80% {
    transform: translateX(3px);
  }
}

.shake {
  animation: shake 0.4s ease;
}