@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&display=swap');

body {
    font-family: 'Orbitron', monospace;
    margin: 0;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow-x: auto;
    animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
    0%, 100% { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
    25% { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
    50% { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
    75% { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }
}

.game-container {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9ff 100%);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 10px 20px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transform: translateY(0);
    transition: all 0.3s ease;
    animation: gameContainerPulse 4s ease-in-out infinite;
}

.game-container:hover {
    transform: translateY(-5px);
    box-shadow: 
        0 30px 60px rgba(0, 0, 0, 0.4),
        0 15px 30px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

@keyframes gameContainerPulse {
    0%, 100% { box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 10px 20px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.8); }
    50% { box-shadow: 0 25px 50px rgba(0, 0, 0, 0.35), 0 12px 25px rgba(0, 0, 0, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.9); }
}

.game-header {
    text-align: center;
    margin-bottom: 30px;
}

.game-header h1 {
    margin: 0 0 20px 0;
    color: transparent;
    background: linear-gradient(45deg, #667eea, #764ba2, #f093fb, #f5576c);
    background-size: 400% 400%;
    -webkit-background-clip: text;
    background-clip: text;
    font-size: 3rem;
    font-weight: 900;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    animation: gradientText 3s ease-in-out infinite;
    letter-spacing: 2px;
}

@keyframes gradientText {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.game-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 500px;
    margin: 0 auto;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(240, 248, 255, 0.9));
    padding: 15px 20px;
    border-radius: 15px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(5px);
}

.mines-counter, .status {
    font-weight: 700;
    color: #2c3e50;
    font-size: 1.1rem;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.mines-counter:hover, .status:hover {
    transform: scale(1.05);
    color: #667eea;
}

.reset-button {
    padding: 8px 16px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.reset-button:hover {
    background-color: #45a049;
}

.game-board {
    display: inline-block;
    border: 3px solid transparent;
    background: linear-gradient(145deg, #34495e, #2c3e50);
    background-clip: padding-box;
    border-radius: 15px;
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.4),
        inset 0 2px 4px rgba(255, 255, 255, 0.1);
    padding: 8px;
    position: relative;
    overflow: hidden;
}

.game-board::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 15px;
    padding: 3px;
    background: linear-gradient(45deg, #667eea, #764ba2, #f093fb, #f5576c);
    background-size: 400% 400%;
    animation: borderGlow 4s ease-in-out infinite;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: xor;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
}

@keyframes borderGlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.board-row {
    display: flex;
    margin: 0;
    padding: 0;
}

.cell {
    width: 35px;
    height: 35px;
    border: none;
    font-size: 16px;
    font-weight: 900;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 1px;
    padding: 0;
    border-radius: 8px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    font-family: 'Orbitron', monospace;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.cell::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.cell:hover::before {
    left: 100%;
}

.cell-hidden {
    background: linear-gradient(145deg, #95a5a6, #7f8c8d);
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3),
        inset 0 -1px 0 rgba(0, 0, 0, 0.1);
}

.cell-hidden:hover {
    background: linear-gradient(145deg, #bdc3c7, #95a5a6);
    transform: translateY(-2px);
    box-shadow: 
        0 6px 12px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        inset 0 -1px 0 rgba(0, 0, 0, 0.1);
}

.cell-hidden:active {
    transform: translateY(0);
    box-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.cell-revealed {
    background: linear-gradient(145deg, #ecf0f1, #d5dbdb);
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.1),
        0 1px 2px rgba(0, 0, 0, 0.1);
    animation: cellReveal 0.3s ease-out;
}

@keyframes cellReveal {
    0% {
        transform: scale(0.8) rotateY(180deg);
        opacity: 0;
    }
    50% {
        transform: scale(1.1) rotateY(90deg);
    }
    100% {
        transform: scale(1) rotateY(0deg);
        opacity: 1;
    }
}

.cell-flagged {
    background: linear-gradient(145deg, #e74c3c, #c0392b);
    box-shadow: 
        0 4px 8px rgba(231, 76, 60, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    animation: flagPulse 0.5s ease-out;
}

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

.cell-mine {
    background: linear-gradient(145deg, #e74c3c, #c0392b);
    box-shadow: 
        0 4px 8px rgba(231, 76, 60, 0.6),
        inset 0 1px 0 rgba(255, 255, 255, 0.3),
        0 0 20px rgba(231, 76, 60, 0.8);
    animation: mineExplode 0.6s ease-out;
}

@keyframes mineExplode {
    0% { 
        transform: scale(1);
        filter: brightness(1);
    }
    25% { 
        transform: scale(1.5);
        filter: brightness(2);
        box-shadow: 0 0 30px rgba(231, 76, 60, 1);
    }
    50% { 
        transform: scale(1.2);
        filter: brightness(1.5);
    }
    100% { 
        transform: scale(1);
        filter: brightness(1);
    }
}

.number-1 { 
    color: #3498db; 
    text-shadow: 0 0 8px rgba(52, 152, 219, 0.6);
    font-weight: 900;
}
.number-2 { 
    color: #2ecc71; 
    text-shadow: 0 0 8px rgba(46, 204, 113, 0.6);
    font-weight: 900;
}
.number-3 { 
    color: #e74c3c; 
    text-shadow: 0 0 8px rgba(231, 76, 60, 0.6);
    font-weight: 900;
}
.number-4 { 
    color: #9b59b6; 
    text-shadow: 0 0 8px rgba(155, 89, 182, 0.6);
    font-weight: 900;
}
.number-5 { 
    color: #f39c12; 
    text-shadow: 0 0 8px rgba(243, 156, 18, 0.6);
    font-weight: 900;
}
.number-6 { 
    color: #1abc9c; 
    text-shadow: 0 0 8px rgba(26, 188, 156, 0.6);
    font-weight: 900;
}
.number-7 { 
    color: #34495e; 
    text-shadow: 0 0 8px rgba(52, 73, 94, 0.6);
    font-weight: 900;
}
.number-8 { 
    color: #e67e22; 
    text-shadow: 0 0 8px rgba(230, 126, 34, 0.6);
    font-weight: 900;
}