:root {
  /* Brand Colors Refined */
  --bg-color: #0c1222; /* Deep Navy, almost black */
  --surface-color: #1a2236; /* Slightly lighter navy */
  
  --primary-color: #10b981; /* Success Green */
  --primary-dark: #059669;
  
  --accent-gold: #fbbf24; /* Brighter Gold */
  --accent-red: #ef4444; /* Bust Red */
  
  --text-main: #ffffff;
  --text-muted: #94a3b8;
  
  --card-bg: #fdf6e3; /* Cream/Parchment for cards */
  --card-text: #1e293b;
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.2);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-color);
  background-image: radial-gradient(circle at 50% 0%, #2e3b55 0%, var(--bg-color) 100%); /* Lighter center */
  background-attachment: fixed;
  color: var(--text-main);
  overflow-x: hidden;
  height: 100vh;
}

#app {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.screen {
  display: none;
  height: 100%;
  padding: var(--spacing-md);
  overflow-y: auto;
}

.screen.active {
  display: flex;
  flex-direction: column;
}

/* --- Buttons --- */
.btn {
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border-radius: var(--radius-md);
}

.btn-primary {
  background: var(--primary-color);
  color: #fff;
  box-shadow: 0 4px 0 var(--primary-dark);
}

.btn-primary:active {
  transform: translateY(4px);
  box-shadow: none;
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1.25rem;
  width: 100%;
}

.btn-block {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 1.1rem;
}

.btn-outlined {
    background: transparent;
    border: 1px solid var(--text-muted);
    color: var(--text-muted);
}

#btn-next-round {
    padding: 24px;
    font-size: 1.4rem;
    box-shadow: 0 6px 0 var(--primary-dark);
}

#btn-next-round:active {
    transform: translateY(6px);
    box-shadow: none;
}

.btn-icon, .btn-icon-small {
  background: var(--surface-color);
  color: var(--text-main);
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.1); /* Subtle border */
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon {
  width: 48px;
  height: 48px;
  font-size: 1.5rem;
}

.btn-icon-small {
  width: 36px;
  height: 36px;
  font-size: 1.2rem;
  border: none;
  cursor: pointer;
}

.btn-text {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  font-size: 0.95rem;
  padding: 8px 16px;
  border-radius: 50px; /* Pill shape */
  border: 1px solid transparent;
  width: auto;
  min-width: 100px;
}

.btn-text.highlight {
  background: rgba(16, 185, 129, 0.1);
  color: var(--primary-color);
  font-weight: 800;
  border-color: var(--primary-color);
}

.btn-small-text {
  background: transparent;
  border: 1px solid var(--text-muted);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
}

/* --- Setup Screen --- */
#screen-setup {
  justify-content: flex-start;
  align-items: center;
  text-align: center;
  background: transparent; /* Rely on body gradient */
  padding-top: 10vh; /* Move content higher up */
}

.game-title {
  font-size: 4.5rem;
  font-weight: 900;
  margin: 0;
  line-height: 1;
  letter-spacing: 1px;
  color: #fbbf24; /* Yellow Fill */
  /* Red Outline + Blue Depth */
  text-shadow: 
      -2px -2px 0 #ef4444,  
       2px -2px 0 #ef4444,
      -2px  2px 0 #ef4444,
       2px  2px 0 #ef4444,
       4px 4px 0 #1e3a8a,
       6px 6px 0 #1e3a8a;
}

.game-title span {
  color: inherit;
  text-shadow: inherit;
}

.game-subtitle {
  color: var(--text-muted);
  margin-top: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.setup-card {
  background: rgba(26, 34, 54, 0.8); /* Lighter Navy */
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(251, 191, 36, 0.3); /* Gold Border */
  box-shadow: 0 0 20px rgba(0,0,0,0.4), 0 0 10px rgba(251, 191, 36, 0.1); /* Gold Glow */
  width: 100%;
  max-width: 320px;
}

.number-control {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: var(--spacing-md) 0 var(--spacing-lg);
}

#player-count-display {
  font-size: 2.5rem;
  font-weight: 800;
  min-width: 60px;
}

.setup-player-list {
  max-height: 200px;
  overflow-y: auto;
  margin-bottom: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  text-align: left;
  padding-right: 4px; /* Space for scrollbar */
}

.setup-player-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.setup-player-row label {
  font-size: 0.8rem;
  color: var(--text-muted);
  width: 24px;
}

.setup-player-row input {
  background: rgba(0,0,0,0.2);
  border: 1px solid rgba(255,255,255,0.1);
  color: #fff;
}

/* --- Dashboard --- */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

#round-display {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.leaderboard-header {
  display: flex;
  justify-content: space-between;
  padding: 0 var(--spacing-md) var(--spacing-xs);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.player-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.player-item {
  background: var(--surface-color);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: transform 0.1s;
  border-left: 4px solid transparent;
}

.player-item:active {
  transform: scale(0.98);
}

.player-item.winner {
  border-left-color: var(--accent-gold);
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.1) 0%, var(--surface-color) 100%);
}

.player-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.player-rank {
  font-weight: 600;
  color: var(--text-muted);
  width: 24px;
}

.player-name {
  font-weight: 600;
  font-size: 1.1rem;
}

.player-score {
  font-size: 1.25rem;
  font-weight: 800;
}

/* --- Inputs --- */
.input-text {
  background: var(--bg-color);
  border: 1px solid var(--surface-color);
  color: var(--text-main);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  width: 100%;
}

/* --- Menu Overlay --- */
.menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(12, 18, 34, 0.9); /* Dark Navy backdrop */
  z-index: 200;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(5px);
}

.menu-content {
  background: var(--surface-color);
  width: 90%;
  max-width: 400px;
  max-height: 80vh;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(251, 191, 36, 0.3); /* Gold Border */
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  overflow-y: auto;
}

.menu-section {
  background: rgba(0,0,0,0.2);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
}

.menu-section h3 {
  margin: 0 0 var(--spacing-sm);
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.menu-player-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.menu-player-row {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.menu-player-row label {
    font-size: 0.8rem;
    color: var(--text-muted);
    width: 20px;
}

/* --- Input Modal --- */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.85);
  z-index: 100;
  align-items: flex-end; /* Slide up from bottom */
  opacity: 0;
  transition: opacity 0.3s;
}

.modal.open {
  display: flex;
  opacity: 1;
}

.modal-content {
  background: #1e293b;
  width: 100%;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.4);
  border-top: 1px solid var(--accent-gold); /* Gold Top Border */
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  max-height: 90vh;
  overflow-y: auto;
}

.modal.open .modal-content {
  transform: translateY(0);
}

.modal-header {
  margin-bottom: var(--spacing-md);
}

.modal-header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.modal-footer {
    margin-top: var(--spacing-lg);
}

#modal-player-name {
  margin: 0;
  font-size: 1.1rem;
}

/* Score Preview */
.score-preview {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.score-value {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--primary-color);
}

.score-value.bust {
  color: var(--accent-red);
}

.score-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Badges */
.badges {
  height: 20px;
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: 4px;
}

.badge {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
}

.badge-flip7 { background: var(--accent-gold); color: #000; }
.badge-bust { background: var(--accent-red); color: #fff; }

/* --- Card Visuals (Premium) --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.card-btn {
  background: #fdf6e3; /* Cream background */
  color: #333;
  border: 1px solid #dcdcdc;
  border-radius: var(--radius-md);
  aspect-ratio: 2/3;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  font-family: 'Outfit', sans-serif;
  
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.card-btn:active {
  transform: scale(0.96);
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.card-btn.disabled {
    opacity: 0.4;
    filter: grayscale(1);
    cursor: not-allowed;
    background: #e2e8f0;
}

.card-btn.limit-reached {
    border-color: var(--accent-red);
    color: #94a3b8 !important;
}

/* Card Numbers (Corner & Center) */
.card-btn::before {
    /* Top Left */
    content: attr(data-val);
    position: absolute;
    top: 4px;
    left: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    opacity: 0.7;
}

.card-btn::after {
    /* Bottom Right (Rotated) */
    content: attr(data-val);
    position: absolute;
    bottom: 4px;
    right: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    opacity: 0.7;
    transform: rotate(180deg);
}

.card-btn .main-number {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    z-index: 1;
}

/* Per-Number Colors */
.card-btn[data-val="0"] { color: #64748b; }
.card-btn[data-val="1"] { color: #2563eb; }
.card-btn[data-val="2"] { color: #059669; }
.card-btn[data-val="3"] { color: #dc2626; }
.card-btn[data-val="4"] { color: #d97706; }
.card-btn[data-val="5"] { color: #7c3aed; }
.card-btn[data-val="6"] { color: #ea580c; }
.card-btn[data-val="7"] { color: #db2777; }
.card-btn[data-val="8"] { color: #0891b2; }
.card-btn[data-val="9"] { color: #65a30d; }
.card-btn[data-val="10"] { color: #4f46e5; }
.card-btn[data-val="11"] { color: #0d9488; }
.card-btn[data-val="12"] { color: #c026d3; }

/* Hand Chips */
.hand-display {
  background: rgba(0,0,0,0.2);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hand-list {
  font-family: monospace;
  color: var(--text-muted);
  flex-grow: 1;
  margin: 0 var(--spacing-sm);
  overflow-x: auto;
  white-space: nowrap;
}

.hand-card-chip {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #fdf6e3;
    color: #333;
    width: 40px;
    height: 56px; /* Mini card aspect */
    border-radius: 6px;
    font-weight: 800;
    font-size: 1.2rem;
    margin-right: 8px;
    cursor: pointer;
    border: 1px solid #ccc;
    font-family: 'Outfit', sans-serif;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    position: relative;
    transition: transform 0.1s;
}

.hand-card-chip:active {
    transform: scale(0.9);
}

.hand-card-chip:hover {
    border-color: var(--accent-red);
}

.hand-card-chip::after {
    /* X icon on hover/always? Let's make it a small indicator or just red border on touch */
    content: "×";
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--accent-red);
    color: white;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* Per-Number Colors for Chips (reuse logic/classes via JS or just generic) */
/* We can reuse the same color logic if we apply classes, but for now simple black is clean, or we can copy the colors */
.hand-card-chip[data-val="0"] { color: #64748b; }
.hand-card-chip[data-val="1"] { color: #2563eb; }
.hand-card-chip[data-val="2"] { color: #059669; }
.hand-card-chip[data-val="3"] { color: #dc2626; }
.hand-card-chip[data-val="4"] { color: #d97706; }
.hand-card-chip[data-val="5"] { color: #7c3aed; }
.hand-card-chip[data-val="6"] { color: #ea580c; }
.hand-card-chip[data-val="7"] { color: #db2777; }
.hand-card-chip[data-val="8"] { color: #0891b2; }
.hand-card-chip[data-val="9"] { color: #65a30d; }
.hand-card-chip[data-val="10"] { color: #4f46e5; }
.hand-card-chip[data-val="11"] { color: #0d9488; }
.hand-card-chip[data-val="12"] { color: #c026d3; }

/* Actions */
.actions-row {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.action-btn {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-muted);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.action-btn.active {
  background: rgba(245, 158, 11, 0.2);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.action-btn .icon {
  font-size: 1.2rem;
}

/* --- Custom Dialog --- */
.custom-dialog-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 300;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s;
}

.custom-dialog-overlay.open {
    display: flex;
    opacity: 1;
}

.custom-dialog {
    background: rgba(26, 34, 54, 0.95);
    padding: var(--spacing-lg);
    border-radius: 24px;
    max-width: 360px;
    width: 90%;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    border: 1px solid rgba(251, 191, 36, 0.2);
    backdrop-filter: blur(12px);
    transform: scale(0.9);
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    text-align: center;
}

.custom-dialog-overlay.open .custom-dialog {
    transform: scale(1);
}

.custom-dialog h3 {
    margin-top: 0;
    color: var(--text-main);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.custom-dialog p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* --- Modifiers --- */
.modifiers-section {
    margin-top: var(--spacing-md);
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: var(--spacing-md) 0;
}

.divider::before, .divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.divider span {
    padding: 0 var(--spacing-sm);
}

.modifiers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.modifier-btn {
    background: var(--surface-color);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--accent-gold);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.modifier-btn:active {
    transform: scale(0.95);
}

.modifier-btn.active {
    background: var(--accent-gold);
    color: #000;
    border-color: var(--accent-gold);
}
.modifier-btn.active {
    background: var(--accent-gold);
    color: #000;
    border-color: var(--accent-gold);
}

/* --- Rules Modal --- */
.modal-rules-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 500;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-rules-overlay.open {
    display: flex;
}

.rules-container {
    width: 100%;
    max-width: 800px;
    height: 80vh;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    box-shadow: 0 0 30px rgba(0,0,0,0.5);
}

.rules-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.btn-close-rules {
    position: absolute;
    top: 20px;
    right: 20px;
    background: white;
    color: black;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 510;
}

/* --- Game Over --- */
#screen-gameover {
    justify-content: center;
    align-items: center;
    text-align: center;
    background: radial-gradient(circle at center, #1e1b4b 0%, #0f172a 100%);
}

#screen-gameover .game-title {
    font-size: 3rem; /* Smaller to fit screen */
}



.gameover-content {
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.winner-display {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-gold);
    margin: var(--spacing-lg) 0;
    text-shadow: 0 0 20px rgba(245, 158, 11, 0.5);
}

.winner-score {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

@keyframes popIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* --- Toast --- */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--accent-gold);
    color: #000;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    z-index: 400;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

/* --- Flip 7 Animation --- */
/* --- Flip 7 Animation --- */
.flip7-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 500;
    
    /* Start State: Invisible & Scaled Down (Pop Effect) */
    opacity: 0;
    visibility: hidden; 
    transform: scale(0.5); 
    background: rgba(12, 18, 34, 0.95); /* Deep Navy */
    backdrop-filter: blur(8px);
    
    /* Smooth Transition for Opacity & Transform */
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); /* Bouncy enter */
}

.flip7-overlay.show {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
    /* Animation removed here to rely on transition for the 'pop', can add pulse if needed */
}

.flip7-text {
    font-size: 6rem; /* Larger */
    font-weight: 900;
    margin-bottom: 0;
    line-height: 1;
    
    color: #fbbf24; /* Yellow Fill */
    
    /* 3D Sticker Effect: Red Outline + Blue Depth */
    text-shadow: 
        -2px -2px 0 #ef4444,  
         2px -2px 0 #ef4444,
        -2px  2px 0 #ef4444,
         2px  2px 0 #ef4444,
         /* Deep Blue Shadow */
         4px 4px 0 #1e3a8a,
         5px 5px 0 #1e3a8a,
         6px 6px 0 #1e3a8a,
         7px 7px 0 #1e3a8a,
         8px 8px 0 #1e3a8a;
}

.flip7-subtext {
    font-size: 2.5rem;
    color: #fff;
    font-weight: 700;
    margin-top: 1rem;
    text-shadow: 0 4px 10px rgba(0,0,0,0.5);
}

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