/* Base styles and CSS variables */
:root {
    --primary-color: #6c5ce7;
    --secondary-color: #00cec9;
    --accent-color: #fdcb6e;
    --bg-color: #151b2e;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --x-color: #e84393;
    --o-color: #00cec9;
    --shadow-color: rgba(0, 0, 0, 0.2);
    --card-bg: rgba(255, 255, 255, 0.1);
    --border-radius: 15px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-color), #2d3436);
    color: var(--light-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-x: hidden;
    position: relative;
}

/* Background elements */
.background-elements {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: -1;
}

.floating-icon {
    position: absolute;
    font-size: 5rem;
    opacity: 0.08;
    animation: float 10s infinite alternate ease-in-out;
}

.floating-icon:nth-child(1) {
    animation-delay: 0s;
    color: var(--x-color);
}

.floating-icon:nth-child(2) {
    animation-delay: 1s;
    color: var(--o-color);
}

.floating-icon:nth-child(3) {
    animation-delay: 2s;
    color: var(--x-color);
}

.floating-icon:nth-child(4) {
    animation-delay: 3s;
    color: var(--o-color);
}

@keyframes float {
    0% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }
    50% {
        transform: translate(15px, 15px) rotate(5deg) scale(1.05);
    }
    100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }
}

/* Main container styles */
.container {
    max-width: 500px;
    width: 95%;
    background-color: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    margin-bottom: 70px;
    position: relative;
    overflow: hidden;
}

.container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: shine 8s infinite linear;
    pointer-events: none;
    z-index: -1;
}

@keyframes shine {
    0% {
        transform: translate(-30%, -30%) rotate(0deg);
    }
    100% {
        transform: translate(-30%, -30%) rotate(360deg);
    }
}

/* Game title styles */
.game-title {
    font-size: 2.2rem;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--light-color);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-shadow: 0 2px 15px rgba(108, 92, 231, 0.5);
}

.game-icon {
    width: 40px;
    height: 40px;
    filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.3));
    animation: pulse 2s infinite;
}

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

/* Player name section styles */
.player-container {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.player-card {
    flex: 1;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.player-card.active {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.player-card.player-x.active {
    border-color: var(--x-color);
}

.player-card.player-o.active {
    border-color: var(--o-color);
}

.player-card h3 {
    margin-bottom: 8px;
    font-size: 0.9rem;
    opacity: 0.8;
}

.player-card input {
    width: 100%;
    padding: 8px;
    border-radius: 5px;
    border: none;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--light-color);
    margin-bottom: 10px;
    text-align: center;
}

.player-card input:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.2);
}

.player-symbol {
    font-size: 1.5rem;
    font-weight: bold;
}

.player-x .player-symbol {
    color: var(--x-color);
}

.player-o .player-symbol {
    color: var(--o-color);
}

/* Board styles */
.board-container {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    max-width: 350px;
    width: 100%;
}

.cell {
    aspect-ratio: 1/1;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.cell:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.cell.x {
    color: var(--x-color);
}

.cell.o {
    color: var(--o-color);
}

.cell.winner {
    animation: winnerPulse 1s infinite alternate;
}

@keyframes winnerPulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 15px rgba(253, 203, 110, 0.5);
    }
    100% {
        transform: scale(1.05);
        box-shadow: 0 0 25px rgba(253, 203, 110, 0.8);
    }
}

/* Message styles */
.message {
    min-height: 50px;
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 20px;
    padding: 10px;
    border-radius: var(--border-radius);
    background-color: rgba(0, 0, 0, 0.2);
}

/* Control buttons */
.controls {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.button {
    padding: 12px 25px;
    border-radius: 50px;
    border: none;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 8px;
}

.button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

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

.reset-button {
    display: none;
    background: linear-gradient(135deg, #ff7675, #d63031);
}

.continue-button {
    margin-top: 20px;
    background: linear-gradient(135deg, #27ae60, #2ecc71);
}

/* Celebration overlay */
.celebration-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.celebration-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.celebration-content {
    max-width: 90%;
    width: 400px;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: popIn 0.5s ease forwards;
}

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

.celebration-content img {
    max-width: 150px;
    margin-bottom: 20px;
    border-radius: 10px;
}

.celebration-content h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--light-color);
}

/* Confetti styles */
.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
}

.confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--accent-color);
    pointer-events: none;
}

/* Footer styles */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    padding: 15px;
    text-align: center;
    font-size: 1rem;
    z-index: 10;
}

.footer p {
    color: var(--light-color);
}

.footer a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

.fa-heart {
    color: #e74c3c;
    margin: 0 5px;
}

.pulse {
    animation: heartBeat 1.5s infinite;
}

@keyframes heartBeat {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

/* Responsive styles */
@media (max-width: 600px) {
    .container {
        padding: 15px;
    }
    
    .game-title {
        font-size: 1.8rem;
    }
    
    .cell {
        font-size: 2rem;
    }
    
    .player-container {
        flex-direction: column;
        gap: 10px;
    }
    
    .message {
        font-size: 1rem;
    }
    
    .button {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .footer {
        padding: 10px;
        font-size: 0.9rem;
    }
}