styles.css

/* ABOUTME: This file contains all the CSS styling for the Threes card game web application */
/* ABOUTME: It includes reset rules, layout styling, card styling, and responsive design elements */

/* CSS Reset/Normalize */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS Custom Properties */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --background-color: #ecf0f1;
    --card-background: #ffffff;
    --card-border: #bdc3c7;
    --text-color: #2c3e50;
    --red-suit: #e74c3c;
    --black-suit: #2c3e50;
    --card-width: 80px;
    --card-height: 112px;
    --border-radius: 8px;
    --font-family: 'Arial', sans-serif;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Basic Body Styling */
body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* Main Container Styling */
#app {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Basic Typography */
h1 {
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
    font-size: 2.5rem;
}

p {
    text-align: center;
    font-size: 1.1rem;
    color: var(--secondary-color);
}

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

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

.mb-20 {
    margin-bottom: 20px;
}

/* Card Styling */
.card {
    width: var(--card-width);
    height: var(--card-height);
    background-color: var(--card-background);
    border: 2px solid var(--card-border);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow);
    user-select: none;
    position: relative;
    margin: 4px;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.card.selected {
    border-color: var(--accent-color);
    background-color: #e8f4fd;
    transform: translateY(-4px);
}

.card.face-up {
    background-color: white;
}

.card.face-down {
    background-color: var(--secondary-color);
    color: white;
}

.card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;
}

.card-rank {
    font-size: 1.2rem;
    font-weight: bold;
    line-height: 1;
    text-align: center;
}

.card-suit {
    font-size: 1.4rem;
    line-height: 1;
    text-align: center;
    margin-top: 2px;
}

.card-back {
    font-size: 2rem;
    color: white;
    text-align: center;
}

/* Suit Colors */
.card.red-suit {
    color: var(--red-suit);
}

.card.black-suit {
    color: var(--black-suit);
}

/* Selectable Cards */
.card.selectable {
    cursor: pointer;
}

.card.selectable:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.card.selectable.selected {
    border-color: var(--accent-color);
    background-color: #e8f4fd;
    transform: translateY(-6px);
    box-shadow: 0 8px 16px rgba(52, 152, 219, 0.3);
}

/* Non-selectable cards shouldn't react to hover as much */
.card:not(.selectable):hover {
    transform: translateY(-1px);
}

/* Card Container for layout */
.card-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 20px 0;
    justify-content: center;
    align-items: center;
}

/* Test Area Styling */
.test-area {
    background-color: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin: 20px 0;
    text-align: center;
}

.test-area h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* Debug Area Styling */
#game-state-debug {
    text-align: left;
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: var(--border-radius);
    border: 1px solid #dee2e6;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    max-width: 600px;
    margin: 0 auto;
}

#game-state-debug p {
    margin: 5px 0;
    text-align: left;
}

#game-state-debug hr {
    margin: 10px 0;
    border: none;
    border-top: 1px solid #dee2e6;
}

#game-state-debug h4 {
    color: var(--primary-color);
    margin: 10px 0 5px 0;
    font-size: 1rem;
}

/* Button Styling */
.test-area button {
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s ease;
}

.test-area button:hover {
    background-color: #2980b9;
}

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

/* Setup Screen Styling */
.setup-container {
    max-width: 500px;
    margin: 0 auto;
    padding: 40px 20px;
    text-align: center;
}

.setup-header {
    margin-bottom: 40px;
}

.game-title {
    font-size: 3.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.game-subtitle {
    font-size: 1.2rem;
    color: var(--secondary-color);
    font-style: italic;
    margin-bottom: 0;
}

.setup-form {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: left;
}

.setup-form h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
    text-align: center;
}

.player-count-section {
    margin-bottom: 30px;
}

.player-count-selector {
    display: flex;
    justify-content: space-around;
    gap: 10px;
    margin-top: 15px;
}

.player-count-selector input[type="radio"] {
    display: none;
}

.player-count-selector label {
    padding: 12px 20px;
    border: 2px solid var(--card-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    font-weight: 500;
    background-color: #f8f9fa;
    flex: 1;
}

.player-count-selector input[type="radio"]:checked + label {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.player-count-selector label:hover {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.player-names-section {
    margin-bottom: 30px;
}

.player-name-inputs {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 15px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.input-group label {
    font-weight: 500;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.player-name-input {
    padding: 12px;
    border: 2px solid var(--card-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color 0.2s ease;
    background-color: #fafafa;
}

.player-name-input:focus {
    outline: none;
    border-color: var(--accent-color);
    background-color: white;
}

.setup-actions {
    text-align: center;
}

.start-game-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow);
}

.start-game-btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.start-game-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow);
}

.setup-error {
    background-color: #fee;
    color: #c33;
    padding: 10px;
    border-radius: var(--border-radius);
    border: 1px solid #fcc;
    margin-bottom: 15px;
    text-align: center;
    font-weight: 500;
}

/* Game Area Styling */
.game-area {
    padding: 20px;
}

.game-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.game-header h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.debug-btn {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 8px 16px;
    margin: 5px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s ease;
}

.debug-btn:hover {
    background-color: var(--primary-color);
}

/* Show/Hide functionality */
.hidden {
    display: none !important;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    .setup-container {
        padding: 20px 10px;
    }
    
    .game-title {
        font-size: 2.5rem;
    }
    
    .player-count-selector {
        flex-direction: column;
    }
    
    .setup-form {
        padding: 20px;
    }
}

/* Game Board Layout */
.game-board {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: calc(100vh - 40px);
    display: flex;
    flex-direction: column;
}

.current-player-display {
    text-align: center;
    margin-bottom: 15px;
    padding: 10px;
    background-color: var(--accent-color);
    color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.current-player-display h3 {
    margin: 0;
    font-size: 1.2rem;
}

/* Game Table Layout */
.game-table {
    flex: 1;
    display: grid;
    grid-template-areas: 
        "others others others"
        "center center center"
        "current current current";
    grid-template-rows: 1fr auto 1fr;
    gap: 20px;
    min-height: 500px;
}

/* Other Players Container */
.other-players-container {
    grid-area: others;
    display: flex;
    justify-content: space-around;
    align-items: flex-start;
    position: relative;
    min-height: 150px;
}

.other-player {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 15px;
    text-align: center;
    min-width: 180px;
    max-width: 220px;
}

.other-player .player-name {
    color: var(--primary-color);
    margin: 0 0 10px 0;
    font-size: 1rem;
}

.player-cards-summary {
    display: flex;
    justify-content: space-around;
    margin-bottom: 10px;
    font-size: 0.8rem;
}

.card-summary {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.card-count {
    font-weight: bold;
    color: var(--accent-color);
    font-size: 1rem;
}

.card-type {
    color: var(--secondary-color);
    font-size: 0.7rem;
}

.visible-cards {
    display: flex;
    justify-content: center;
    gap: 2px;
    flex-wrap: wrap;
}

.visible-cards .card {
    width: 35px;
    height: 49px;
    font-size: 0.6rem;
}

/* Player positioning for different counts */
.other-player.position-top {
    align-self: center;
}

.other-player.position-top-left {
    align-self: flex-start;
}

.other-player.position-top-right {
    align-self: flex-end;
}

.other-player.position-left {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
}

.other-player.position-right {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

/* Center Area (Card Piles) */
.center-area {
    grid-area: center;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    padding: 20px;
    background-color: #2c5530;
    border-radius: 15px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
    min-height: 120px;
}

.pile-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.pile-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.card-pile {
    width: var(--card-width);
    height: var(--card-height);
    position: relative;
    cursor: pointer;
}

.pile-placeholder {
    width: 100%;
    height: 100%;
    border: 2px dashed #ffffff40;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.1);
    transition: all 0.2s ease;
}

.pile-placeholder:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: #ffffff60;
}

.pile-count {
    font-size: 1.2rem;
    font-weight: bold;
    color: white;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    background: rgba(0, 0, 0, 0.6);
    padding: 2px 6px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    min-width: 20px;
    text-align: center;
}

.pile-label {
    font-size: 0.8rem;
    color: #cccccc;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Empty Pile Styling */
.empty-pile {
    width: var(--card-width);
    height: var(--card-height);
    border: 2px dashed #ffffff40;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #cccccc;
    font-size: 0.8rem;
    background-color: rgba(255, 255, 255, 0.05);
    text-align: center;
    padding: 8px;
}

.empty-pile small {
    font-size: 0.7rem;
    margin-top: 4px;
    opacity: 0.8;
}

/* Pile information display */
.pile-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    margin-top: 8px;
}

.pile-info .pile-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 0.8rem;
    padding: 4px 8px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.top-card-info {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(0, 0, 0, 0.4);
    padding: 2px 6px;
    border-radius: 8px;
    font-weight: 500;
}

/* Discard pile interaction */
#discard-pile {
    transition: all 0.2s ease;
    position: relative;
}

#discard-pile:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

#discard-pile.clickable {
    cursor: pointer;
}

#discard-pile.clickable::after {
    content: "Click to pick up";
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
    white-space: nowrap;
}

#discard-pile.clickable:hover::after {
    opacity: 1;
}

/* Turn Transition Overlay */
.turn-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease-in-out;
}

.turn-transition-content {
    background: white;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    width: 90%;
    animation: slideIn 0.4s ease-out;
}

.turn-transition-content h2 {
    color: #2c5530;
    margin: 0 0 20px 0;
    font-size: 2rem;
    font-weight: bold;
}

.turn-transition-content .current-player-name {
    font-size: 1.5rem;
    font-weight: bold;
    color: #007bff;
    margin: 15px 0;
}

.turn-transition-content .transition-instruction {
    color: #666;
    margin: 15px 0 25px 0;
    font-size: 1rem;
}

.continue-turn-btn {
    background: #007bff;
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.continue-turn-btn:hover {
    background: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.continue-turn-btn:active {
    transform: translateY(0);
}

/* Disabled button styles */
.control-btn.disabled,
.control-btn:disabled {
    background-color: #e9ecef !important;
    color: #6c757d !important;
    cursor: not-allowed !important;
    opacity: 0.6;
    transform: none !important;
    box-shadow: none !important;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Special Card Effect Animations */
.game-feedback.special {
    background: linear-gradient(135deg, #ff6b6b, #feca57);
    color: white;
    font-weight: bold;
    font-size: 1.1rem;
    border: none;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
    animation: specialPulse 0.6s ease-in-out;
}

@keyframes specialPulse {
    0% {
        transform: scale(0.9);
        opacity: 0;
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Pile Clear Effects */
#discard-pile.pile-cleared {
    animation: pileCleared 1.2s ease-in-out;
}

@keyframes pileCleared {
    0% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.1);
        box-shadow: 0 0 20px #ff6b6b;
    }
    50% {
        transform: scale(0.95);
        opacity: 0.7;
    }
    75% {
        transform: scale(1.05);
        box-shadow: 0 0 30px #feca57;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Wild Card Effects */
#discard-pile.wild-played {
    animation: wildCardEffect 1s ease-in-out;
}

@keyframes wildCardEffect {
    0% {
        transform: rotate(0deg);
        box-shadow: 0 0 10px #4ecdc4;
    }
    25% {
        transform: rotate(5deg);
        box-shadow: 0 0 20px #45b7aa;
    }
    50% {
        transform: rotate(-5deg);
        box-shadow: 0 0 25px #4ecdc4;
    }
    75% {
        transform: rotate(3deg);
        box-shadow: 0 0 15px #45b7aa;
    }
    100% {
        transform: rotate(0deg);
        box-shadow: 0 0 5px #4ecdc4;
    }
}

/* Four of a Kind Effects */
#discard-pile.four-of-kind {
    animation: fourOfKindEffect 1.5s ease-in-out;
}

@keyframes fourOfKindEffect {
    0% {
        transform: scale(1);
        box-shadow: 0 0 10px #ff9ff3;
    }
    20% {
        transform: scale(1.15);
        box-shadow: 0 0 25px #f368e0;
    }
    40% {
        transform: scale(0.9);
        box-shadow: 0 0 35px #ff9ff3;
    }
    60% {
        transform: scale(1.1);
        box-shadow: 0 0 30px #f368e0;
    }
    80% {
        transform: scale(0.95);
        box-shadow: 0 0 20px #ff9ff3;
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 10px #f368e0;
    }
}

/* Pile Clearing Animation */
#discard-pile.pile-clearing {
    animation: pileClearing 0.8s ease-in-out;
}

@keyframes pileClearing {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.3;
        transform: scale(0.8);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Finished Player Styling */
.player-finished {
    opacity: 0.6;
    filter: grayscale(50%);
    position: relative;
}

.finished-indicator {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #28a745;
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: bold;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Game Over Overlay */
.game-over-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: fadeIn 0.5s ease-in-out;
}

.game-over-content {
    background: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    max-width: 500px;
    width: 90%;
    animation: slideIn 0.6s ease-out;
}

.game-over-content h1 {
    color: #2c5530;
    margin: 0 0 30px 0;
    font-size: 2.5rem;
    font-weight: bold;
}

.game-over-results {
    margin: 20px 0 30px 0;
}

.game-over-results h3 {
    color: #333;
    margin: 20px 0 15px 0;
    font-size: 1.3rem;
}

.result-item {
    padding: 10px 15px;
    margin: 8px 0;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
}

.result-item.finished {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
}

.result-item.loser {
    background: linear-gradient(135deg, #dc3545, #fd7e14);
    color: white;
    font-size: 1.2rem;
    animation: shake 0.5s ease-in-out;
}

.game-over-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.new-game-btn, .view-board-btn {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.new-game-btn {
    background: #007bff;
    color: white;
}

.new-game-btn:hover {
    background: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.view-board-btn {
    background: #6c757d;
    color: white;
}

.view-board-btn:hover {
    background: #545b62;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

/* Shake animation for loser */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Discard pile should show layered cards */
.card-pile .card {
    position: absolute;
    top: 0;
    left: 0;
}

.card-pile .card:nth-child(1) {
    transform: rotate(-2deg) translateY(2px);
    z-index: 1;
}

.card-pile .card:nth-child(2) {
    transform: rotate(1deg) translateY(1px);
    z-index: 2;
}

.card-pile .card:nth-child(3) {
    transform: rotate(0deg);
    z-index: 3;
}

/* Current Player Area */
.current-player-area {
    grid-area: current;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 20px;
}

.player-section .player-name {
    text-align: center;
    color: var(--primary-color);
    margin: 0 0 15px 0;
    font-size: 1.1rem;
}

.player-cards {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.card-row {
    display: flex;
    align-items: center;
    gap: 15px;
}

.card-row-label {
    min-width: 80px;
    font-weight: 600;
    color: var(--secondary-color);
    font-size: 0.9rem;
    text-align: right;
}

.card-row .card-container {
    display: flex;
    gap: 5px;
    flex: 1;
    justify-content: flex-start;
    flex-wrap: wrap;
}

.empty-card-slot {
    width: var(--card-width);
    height: var(--card-height);
    border: 2px dashed var(--card-border);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 0.8rem;
    background-color: #f8f9fa;
}

/* Control Buttons */
.control-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
    padding: 15px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.control-btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow);
}

.control-btn:disabled {
    background-color: #e9ecef;
    color: #6c757d;
    cursor: not-allowed;
    box-shadow: none;
}

#play-selected-btn {
    background-color: var(--accent-color);
    color: white;
}

#play-selected-btn:hover:not(:disabled) {
    background-color: #2980b9;
    transform: translateY(-1px);
}

#pick-up-pile-btn {
    background-color: #e74c3c;
    color: white;
}

#pick-up-pile-btn:hover {
    background-color: #c0392b;
    transform: translateY(-1px);
}

#pass-turn-btn {
    background-color: var(--secondary-color);
    color: white;
}

#pass-turn-btn:hover {
    background-color: var(--primary-color);
    transform: translateY(-1px);
}

/* Debug Area */
.debug-area {
    margin-top: 20px;
    text-align: center;
}

.debug-toggle {
    background-color: #6c757d;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.8rem;
}

.debug-toggle:hover {
    background-color: #5a6268;
}

.debug-panel {
    margin-top: 10px;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    padding: 15px;
    border: 1px solid #dee2e6;
}

.debug-panel h4 {
    margin: 0 0 10px 0;
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .game-board {
        padding: 10px;
    }
    
    .other-players-container {
        flex-direction: column;
        gap: 10px;
        min-height: auto;
    }
    
    .other-player.position-left,
    .other-player.position-right {
        position: static;
        transform: none;
    }
    
    .center-area {
        gap: 20px;
        padding: 15px;
    }
    
    .control-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .control-btn {
        width: 100%;
    }
    
    .card-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .card-row-label {
        min-width: auto;
        text-align: left;
    }
}

/* Exchange Phase Styling */
.exchange-phase {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

.exchange-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, var(--accent-color), #2980b9);
    color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.exchange-header h2 {
    margin: 0 0 10px 0;
    font-size: 1.8rem;
}

.exchange-subtitle {
    margin: 0 0 15px 0;
    font-size: 1rem;
    opacity: 0.9;
}

.exchange-progress {
    font-size: 1.1rem;
    font-weight: 600;
}

.exchange-instructions {
    margin-bottom: 30px;
}

.instructions-card {
    background-color: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--accent-color);
}

.instructions-card h3 {
    color: var(--primary-color);
    margin: 0 0 15px 0;
}

.instructions-card ul {
    margin: 0;
    padding-left: 20px;
}

.instructions-card li {
    margin-bottom: 8px;
    line-height: 1.5;
}

.exchange-player-area {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.exchange-player-area h3 {
    color: var(--primary-color);
    margin: 0 0 20px 0;
    text-align: center;
    font-size: 1.3rem;
}

.exchange-cards {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.exchange-row {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card-section-header {
    text-align: left;
}

.card-section-header h4 {
    color: var(--primary-color);
    margin: 0 0 5px 0;
    font-size: 1.1rem;
}

.card-section-header p {
    color: var(--secondary-color);
    margin: 0;
    font-size: 0.9rem;
    font-style: italic;
}

.exchange-hand,
.exchange-face-up,
.exchange-face-down {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    padding: 15px;
    border-radius: var(--border-radius);
    min-height: calc(var(--card-height) + 30px);
    align-items: center;
}

.exchange-hand {
    background-color: #f8f9fa;
    border: 2px dashed #dee2e6;
}

.exchange-face-up {
    background-color: #e8f4fd;
    border: 2px dashed var(--accent-color);
}

.exchange-face-down {
    background-color: #f5f5f5;
    border: 2px solid #e0e0e0;
}

/* Exchange Cards */
.exchange-card {
    transition: all 0.2s ease;
    position: relative;
}

.exchange-card.selectable {
    cursor: pointer;
}

.exchange-card.selectable:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.exchange-card.selected {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(52, 152, 219, 0.4);
    border-color: var(--accent-color);
    border-width: 3px;
}

.exchange-card.selected::after {
    content: '✓';
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

/* Exchange Controls */
.exchange-controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    padding: 20px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.exchange-btn {
    padding: 12px 30px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow);
}

.exchange-btn.primary {
    background-color: var(--accent-color);
    color: white;
}

.exchange-btn.primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

.exchange-btn.secondary {
    background-color: #6c757d;
    color: white;
}

.exchange-btn.secondary:hover {
    background-color: #545b62;
    transform: translateY(-2px);
}

/* Exchange Feedback */
.exchange-feedback {
    padding: 10px 15px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    text-align: center;
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

.exchange-feedback.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.exchange-feedback.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.exchange-feedback.info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Exchange */
@media (max-width: 768px) {
    .exchange-phase {
        padding: 15px;
    }
    
    .exchange-header {
        padding: 15px;
    }
    
    .exchange-header h2 {
        font-size: 1.5rem;
    }
    
    .instructions-card {
        padding: 15px;
    }
    
    .exchange-player-area {
        padding: 20px;
    }
    
    .exchange-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .exchange-btn {
        width: 100%;
    }
    
    .exchange-hand,
    .exchange-face-up,
    .exchange-face-down {
        padding: 10px;
        justify-content: center;
    }
}

/* Enhanced Card Selection Styling with Smooth Animations */
.card.selectable {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.card.selectable:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    z-index: 5;
}

.card.selected {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 24px rgba(52, 152, 219, 0.5);
    border-color: var(--accent-color);
    border-width: 3px;
    position: relative;
    z-index: 10;
    animation: cardSelected 0.4s ease-out;
}

.card.selected::after {
    content: '✓';
    position: absolute;
    top: -10px;
    right: -10px;
    background: linear-gradient(135deg, var(--accent-color), #2980b9);
    color: white;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    z-index: 15;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.4);
    animation: checkmarkPop 0.3s ease-out 0.1s both;
}

/* Card selection animation */
@keyframes cardSelected {
    0% {
        transform: translateY(-3px) scale(1.02);
    }
    50% {
        transform: translateY(-12px) scale(1.08);
    }
    100% {
        transform: translateY(-8px) scale(1.05);
    }
}

/* Checkmark pop animation */
@keyframes checkmarkPop {
    0% {
        transform: scale(0) rotate(-180deg);
        opacity: 0;
    }
    50% {
        transform: scale(1.2) rotate(-90deg);
        opacity: 1;
    }
    100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

/* Card movement animations */
.card.moving {
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 20;
}

.card.dealing {
    animation: cardDeal 0.8s ease-out;
}

@keyframes cardDeal {
    0% {
        transform: translateX(-100px) translateY(-50px) rotate(-15deg) scale(0.8);
        opacity: 0;
    }
    50% {
        transform: translateX(-20px) translateY(-10px) rotate(-5deg) scale(0.95);
        opacity: 0.8;
    }
    100% {
        transform: translateX(0) translateY(0) rotate(0deg) scale(1);
        opacity: 1;
    }
}

/* Card play animation */
.card.playing {
    animation: cardPlay 0.8s ease-in-out;
    z-index: 25;
}

@keyframes cardPlay {
    0% {
        transform: translateY(0) scale(1);
    }
    30% {
        transform: translateY(-20px) scale(1.1);
    }
    70% {
        transform: translateY(-40px) translateX(0) scale(1.05);
    }
    100% {
        transform: translateY(-60px) translateX(20px) scale(0.9);
        opacity: 0.7;
    }
}

/* Game Controls Styling */
.game-controls {
    background-color: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-top: 20px;
}

.selection-info {
    text-align: center;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    font-weight: 500;
    background-color: #f8f9fa;
    color: var(--secondary-color);
    border: 2px solid #e9ecef;
    transition: all 0.2s ease;
}

.selection-info.active {
    background-color: #e8f4fd;
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.control-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.control-btn {
    padding: 12px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.control-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.control-btn:active::before {
    width: 300px;
    height: 300px;
}

.control-btn.primary {
    background: linear-gradient(135deg, var(--accent-color), #2980b9);
    color: white;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.control-btn.primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #2980b9, #1f5f8b);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.4);
}

.control-btn.primary:disabled {
    background: linear-gradient(135deg, #bdc3c7, #95a5a6);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.6;
}

.control-btn.secondary {
    background: linear-gradient(135deg, #6c757d, #545b62);
    color: white;
    box-shadow: 0 4px 15px rgba(108, 117, 125, 0.3);
}

.control-btn.secondary:hover {
    background: linear-gradient(135deg, #545b62, #3d4449);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(108, 117, 125, 0.4);
}

.control-btn.tertiary {
    background: linear-gradient(135deg, #e9ecef, #dee2e6);
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(233, 236, 239, 0.5);
}

.control-btn.tertiary:hover {
    background: linear-gradient(135deg, #dee2e6, #ced4da);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(233, 236, 239, 0.6);
}

/* Button success state */
.control-btn.success {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    animation: successPulse 0.6s ease-out;
}

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

/* Button loading state */
.control-btn.loading {
    pointer-events: none;
    position: relative;
}

.control-btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Enhanced Game Feedback */
.game-feedback {
    padding: 12px 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    text-align: center;
    font-weight: 600;
    animation: feedbackSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
}

.game-feedback::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s ease-in-out;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.game-feedback.success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
    border: 2px solid #28a745;
    animation: feedbackSlideIn 0.4s ease, successGlow 0.6s ease-out;
}

@keyframes successGlow {
    0% { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); }
    50% { box-shadow: 0 4px 20px rgba(40, 167, 69, 0.4); }
    100% { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); }
}

.game-feedback.error {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
    border: 2px solid #dc3545;
    animation: feedbackSlideIn 0.4s ease, errorShake 0.5s ease-in-out, errorGlow 0.6s ease-out;
}

@keyframes errorGlow {
    0% { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); }
    50% { box-shadow: 0 4px 20px rgba(220, 53, 69, 0.4); }
    100% { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); }
}

.game-feedback.warning {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    color: #856404;
    border: 2px solid #ffc107;
    font-weight: 600;
    animation: feedbackSlideIn 0.4s ease, warningPulse 0.8s ease-out;
}

@keyframes warningPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.game-feedback.info {
    background: linear-gradient(135deg, #d1ecf1, #bee5eb);
    color: #0c5460;
    border: 2px solid #17a2b8;
    animation: feedbackSlideIn 0.4s ease;
}

.game-feedback.special {
    background: linear-gradient(135deg, #e8f4fd, #d1ecf1);
    color: #0c5460;
    border: 2px solid #3498db;
    animation: feedbackSlideIn 0.4s ease, specialSparkle 1s ease-out;
    font-size: 1.1em;
}

@keyframes specialSparkle {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }
    25% { 
        transform: scale(1.05);
        box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
    }
    50% { 
        transform: scale(1.02);
        box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
    }
    75% { 
        transform: scale(1.03);
        box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
    }
}

/* Enhanced slide-in animation */
@keyframes feedbackSlideIn {
    0% {
        transform: translateY(-20px) scale(0.95);
        opacity: 0;
    }
    50% {
        transform: translateY(-5px) scale(1.02);
        opacity: 0.8;
    }
    100% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

/* Enhanced error shake animation */
@keyframes errorShake {
    0%, 100% { transform: translateX(0) scale(1); }
    25% { transform: translateX(-5px) scale(1.01); }
    75% { transform: translateX(5px) scale(1.01); }
}

/* Card Selection Rules Display */
.selection-rules {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
    padding: 10px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.selection-rules h4 {
    margin: 0 0 8px 0;
    font-size: 1rem;
}

.selection-rules ul {
    margin: 0;
    padding-left: 20px;
}

.selection-rules li {
    margin-bottom: 4px;
}

/* Responsive Game Controls */
@media (max-width: 768px) {
    .control-buttons {
        flex-direction: column;
        gap: 8px;
    }
    
    .control-btn {
        width: 100%;
        padding: 14px 20px;
    }
    
    .game-controls {
        padding: 15px;
    }
    
    .selection-info {
        font-size: 0.9rem;
        padding: 8px;
    }
}