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

:root {
    --bg-dark: #0a0e27;
    --bg-darker: #050815;
    --accent-cyan: #00fff9;
    --accent-pink: #ff006e;
    --accent-yellow: #ffbe0b;
    --accent-green: #06ffa5;
    --text-primary: #e0e6ff;
    --text-secondary: #8892b0;
    --shadow-glow: 0 0 20px rgba(0, 255, 249, 0.3);
}

body {
    font-family: 'Space Mono', monospace;
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 249, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 0, 110, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 800px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.quiz-header {
    text-align: center;
    margin-bottom: 40px;
    animation: slideDown 0.8s ease-out;
}

.title {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-pink), var(--accent-yellow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 40px rgba(0, 255, 249, 0.3);
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.subtitle::before,
.subtitle::after {
    content: '//';
    margin: 0 10px;
    color: var(--accent-cyan);
}

.quiz-card {
    background: rgba(10, 14, 39, 0.7);
    border: 2px solid rgba(0, 255, 249, 0.2);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-glow), 0 20px 60px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
    animation: fadeIn 1s ease-out;
}

.quiz-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--accent-cyan), var(--accent-pink), var(--accent-yellow), var(--accent-green));
    border-radius: 20px;
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s;
}

.quiz-card:hover::before {
    opacity: 0.1;
}

.progress-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin-bottom: 30px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-pink));
    border-radius: 10px;
    transition: width 0.5s ease;
    box-shadow: 0 0 10px var(--accent-cyan);
}

.question-counter {
    color: var(--accent-cyan);
    font-size: 0.9rem;
    margin-bottom: 20px;
    font-family: 'JetBrains Mono', monospace;
}

.question-counter::before {
    content: '> ';
}

.question {
    font-size: 1.5rem;
    margin-bottom: 30px;
    line-height: 1.6;
    color: var(--text-primary);
    font-weight: 700;
}

.tech-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 15px;
    font-family: 'JetBrains Mono', monospace;
    text-transform: uppercase;
}

.tag-html { background: rgba(227, 79, 38, 0.2); color: #e34f26; border: 1px solid #e34f26; }
.tag-css { background: rgba(21, 114, 182, 0.2); color: #1572b6; border: 1px solid #1572b6; }
.tag-js { background: rgba(240, 219, 79, 0.2); color: #f0db4f; border: 1px solid #f0db4f; }
.tag-php { background: rgba(119, 123, 180, 0.2); color: #777bb4; border: 1px solid #777bb4; }
.tag-mysql { background: rgba(0, 117, 143, 0.2); color: #00758f; border: 1px solid #00758f; }
.tag-wordpress { background: rgba(33, 117, 155, 0.2); color: #21759b; border: 1px solid #21759b; }

.options {
    display: grid;
    gap: 15px;
}

.option {
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.option::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: var(--accent-cyan);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.option:hover {
    background: rgba(0, 255, 249, 0.05);
    border-color: var(--accent-cyan);
    transform: translateX(5px);
}

.option:hover::before {
    transform: scaleY(1);
}

.option.selected {
    background: rgba(0, 255, 249, 0.1);
    border-color: var(--accent-cyan);
}

.option.correct {
    background: rgba(6, 255, 165, 0.1);
    border-color: var(--accent-green);
    animation: correctPulse 0.5s ease;
}

.option.wrong {
    background: rgba(255, 0, 110, 0.1);
    border-color: var(--accent-pink);
    animation: wrongShake 0.5s ease;
}

.option.disabled {
    pointer-events: none;
    opacity: 0.6;
}

.next-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-pink));
    color: var(--bg-darker);
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    cursor: pointer;
    margin-top: 30px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
    box-shadow: 0 4px 15px rgba(0, 255, 249, 0.3);
}

.next-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 255, 249, 0.5);
}

.next-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.hidden {
    display: none !important;
}

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

.score-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: conic-gradient(
        var(--accent-cyan) 0deg,
        var(--accent-pink) 120deg,
        var(--accent-yellow) 240deg,
        var(--accent-cyan) 360deg
    );
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 40px auto;
    position: relative;
    animation: rotateGlow 3s linear infinite;
}

.score-circle::before {
    content: '';
    position: absolute;
    inset: 8px;
    background: var(--bg-dark);
    border-radius: 50%;
    z-index: 1;
}

.score-display {
    font-size: 4rem;
    font-weight: 900;
    font-family: 'Orbitron', sans-serif;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-yellow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 2;
}

.result-message {
    font-size: 1.5rem;
    margin: 30px 0;
    color: var(--text-primary);
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 40px 0;
}

.stat-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 900;
    font-family: 'Orbitron', sans-serif;
}

.stat-value.correct { color: var(--accent-green); }
.stat-value.wrong { color: var(--accent-pink); }
.stat-value.percentage { color: var(--accent-cyan); }

.restart-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
    color: var(--bg-darker);
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
    box-shadow: 0 4px 15px rgba(6, 255, 165, 0.3);
}

.restart-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(6, 255, 165, 0.5);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes wrongShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes rotateGlow {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .title {
        font-size: 2rem;
    }
    
    .quiz-card {
        padding: 25px;
    }
    
    .question {
        font-size: 1.2rem;
    }
    
    .stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .score-circle {
        width: 150px;
        height: 150px;
    }
    
    .score-display {
        font-size: 3rem;
    }
}