/* Neon Type-Racer Styles */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #1a1a2e;
    --bg-card: rgba(26, 26, 46, 0.8);
    --neon-green: #00ff88;
    --neon-cyan: #00d4ff;
    --neon-yellow: #ffff00;
    --neon-pink: #ff00c1;
    --neon-red: #ff4444;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --border-glow: rgba(0, 212, 255, 0.3);
    --font-primary: 'Orbitron', monospace;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-primary);
    background: linear-gradient(135deg, var(--bg-primary) 0%, #16213e 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Animated Background Stars */
.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, var(--neon-cyan), transparent),
        radial-gradient(2px 2px at 40px 70px, var(--neon-green), transparent),
        radial-gradient(1px 1px at 90px 40px, var(--neon-yellow), transparent),
        radial-gradient(1px 1px at 130px 80px, var(--neon-pink), transparent),
        radial-gradient(2px 2px at 160px 30px, var(--neon-cyan), transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    animation: sparkle 20s linear infinite;
    opacity: 0.6;
}

@keyframes sparkle {
    from { transform: translateY(0px); }
    to { transform: translateY(-100px); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

/* Screen Management */
.screen {
    display: none;
    width: 100%;
    max-width: 900px;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 2px solid var(--border-glow);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 
        0 0 50px rgba(0, 212, 255, 0.2),
        inset 0 0 50px rgba(0, 212, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.screen.active {
    display: block;
    animation: screenFadeIn 0.5s ease-out;
}

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

.screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    animation: shimmer 3s infinite;
}

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

/* Typography */
.screen-title {
    font-size: 3rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--neon-cyan), var(--neon-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px var(--neon-cyan);
}

.screen-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.accent {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan);
}

.highlight {
    color: var(--neon-yellow);
    font-weight: bold;
}

/* Buttons */
.btn {
    font-family: var(--font-primary);
    font-weight: 700;
    padding: 1rem 2rem;
    border: 2px solid;
    border-radius: 12px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

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

.btn-primary {
    border-color: var(--neon-green);
    color: var(--neon-green);
    text-shadow: 0 0 10px var(--neon-green);
}

.btn-primary:hover {
    background: rgba(0, 255, 136, 0.1);
    box-shadow: 0 0 30px var(--neon-green);
    transform: translateY(-2px);
}

.btn-secondary {
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan);
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    box-shadow: 0 0 30px var(--neon-cyan);
    transform: translateY(-2px);
}

.btn-logout {
    border-color: var(--neon-red);
    color: var(--neon-red);
    text-shadow: 0 0 10px var(--neon-red);
}

.btn-logout:hover {
    background: rgba(255, 68, 68, 0.1);
    box-shadow: 0 0 30px var(--neon-red);
}

.btn-disabled {
    border-color: var(--text-muted);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.5;
}

.btn:disabled {
    border-color: var(--text-muted);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.5;
}

.pulse {
    animation: pulse 2s infinite;
}

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

/* Landing Screen */
.neon-title {
    text-align: center;
    margin-bottom: 2rem;
}

.main-title {
    font-size: 5rem;
    font-weight: 900;
    background: linear-gradient(45deg, var(--neon-green), var(--neon-cyan), var(--neon-yellow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 50px var(--neon-cyan);
    margin-bottom: 0.5rem;
}

.sub-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    text-shadow: 0 0 20px var(--text-primary);
}

.title-underline {
    width: 200px;
    height: 4px;
    background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan));
    margin: 1rem auto 2rem;
    border-radius: 2px;
    box-shadow: 0 0 20px var(--neon-cyan);
}

.landing-description {
    text-align: center;
    font-size: 1.3rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-card {
    text-align: center;
    padding: 1.5rem;
    border: 1px solid var(--border-glow);
    border-radius: 12px;
    background: rgba(0, 212, 255, 0.05);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
    border-color: var(--neon-cyan);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.feature-text {
    color: var(--neon-cyan);
    font-weight: 600;
    text-shadow: 0 0 10px var(--neon-cyan);
}

.loading-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.dot {
    width: 8px;
    height: 8px;
    background: var(--neon-cyan);
    border-radius: 50%;
    animation: dotPulse 1.5s infinite;
    box-shadow: 0 0 10px var(--neon-cyan);
}

.dot:nth-child(2) { animation-delay: 0.3s; }
.dot:nth-child(3) { animation-delay: 0.6s; }

@keyframes dotPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

/* Login Screen */
.login-header {
    text-align: center;
    margin-bottom: 3rem;
}

.login-form {
    max-width: 400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    font-size: 1.2rem;
    color: var(--neon-cyan);
    z-index: 1;
}

.neon-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    font-size: 1.1rem;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--border-glow);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    transition: all 0.3s ease;
}

.neon-input:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px var(--neon-cyan);
    background: rgba(0, 212, 255, 0.05);
}

.neon-input::placeholder {
    color: var(--text-muted);
}

.matrix-rain {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.rain-line {
    position: absolute;
    width: 2px;
    height: 100px;
    background: linear-gradient(to bottom, transparent, var(--neon-green), transparent);
    animation: matrixRain 3s linear infinite;
}

.rain-line:nth-child(1) { left: 10%; animation-delay: 0s; }
.rain-line:nth-child(2) { left: 30%; animation-delay: 0.5s; }
.rain-line:nth-child(3) { left: 50%; animation-delay: 1s; }
.rain-line:nth-child(4) { left: 70%; animation-delay: 1.5s; }
.rain-line:nth-child(5) { left: 90%; animation-delay: 2s; }

@keyframes matrixRain {
    0% { top: -100px; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

/* Mode Selection */
.mode-header {
    text-align: center;
    margin-bottom: 3rem;
}

.mode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.mode-card {
    position: relative;
    padding: 2rem;
    border: 2px solid var(--border-glow);
    border-radius: 16px;
    background: var(--bg-card);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    overflow: hidden;
}

.mode-card:hover {
    transform: translateY(-10px);
    border-color: var(--neon-cyan);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.3);
}

.mode-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.mode-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.mode-description {
    color: var(--text-secondary);
    line-height: 1.5;
}

.mode-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.mode-card:hover .mode-glow {
    opacity: 0.1;
}

.mode-glow.green { background: radial-gradient(circle, var(--neon-green), transparent); }
.mode-glow.cyan { background: radial-gradient(circle, var(--neon-cyan), transparent); }
.mode-glow.yellow { background: radial-gradient(circle, var(--neon-yellow), transparent); }

/* Time Selection */
.time-selector {
    text-align: center;
    padding: 2rem;
    border-top: 2px solid var(--border-glow);
    margin-top: 2rem;
}

.time-title {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.time-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.time-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.time-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    border: 2px solid var(--border-glow);
    border-radius: 12px;
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 100px;
}

.time-btn:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px var(--neon-cyan);
    transform: translateY(-5px);
}

.time-icon {
    font-size: 1.5rem;
}

.logout-section {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-glow);
}

/* Typing Screen */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--border-glow);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px var(--neon-cyan);
}

.stat-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px currentColor;
}

.stat-value.green { color: var(--neon-green); }
.stat-value.yellow { color: var(--neon-yellow); }

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

.text-display {
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid var(--border-glow);
    border-radius: 16px;
    padding: 2rem;
    min-height: 200px;
    font-family: var(--font-mono);
    font-size: 1.5rem;
    line-height: 1.8;
    cursor: text;
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
    max-height: 300px;
    overflow-y: auto;
}

.text-display:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.loading-container {
    text-align: center;
    padding: 3rem 0;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-glow);
    border-top: 4px solid var(--neon-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.loading-text {
    color: var(--neon-cyan);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    text-shadow: 0 0 10px var(--neon-cyan);
}

.loading-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.loading-dots .dot {
    width: 8px;
    height: 8px;
    background: var(--neon-cyan);
    border-radius: 50%;
    animation: dotPulse 1.5s infinite;
    box-shadow: 0 0 10px var(--neon-cyan);
}

.loading-dots .dot:nth-child(2) { animation-delay: 0.3s; }
.loading-dots .dot:nth-child(3) { animation-delay: 0.6s; }

.error-message {
    text-align: center;
    color: var(--neon-red);
    padding: 3rem 0;
    font-size: 1.2rem;
    text-shadow: 0 0 10px var(--neon-red);
}

.text-line {
    margin-bottom: 0.5rem;
    line-height: 1.8;
    transition: all 0.3s ease;
}

.text-line.current-line {
    background: rgba(0, 212, 255, 0.05);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
    margin: 0.2rem -0.5rem;
}

.char {
    position: relative;
    color: var(--text-muted);
    transition: all 0.2s ease;
}

.char-current {
    background: var(--neon-cyan);
    color: var(--bg-primary);
    animation: blink 1s infinite;
    border-radius: 2px;
    box-shadow: 0 0 10px var(--neon-cyan);
}

.char-correct {
    color: var(--neon-green);
    text-shadow: 0 0 5px var(--neon-green);
}

.char-incorrect {
    color: var(--neon-red);
    background: rgba(255, 68, 68, 0.2);
    border-radius: 2px;
    text-shadow: 0 0 5px var(--neon-red);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

.hidden-input {
    position: absolute;
    left: -9999px;
    opacity: 0;
}

.typing-tip {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.typing-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.indicator {
    width: 6px;
    height: 6px;
    background: var(--neon-cyan);
    border-radius: 50%;
    animation: indicatorPulse 1.5s infinite;
}

.indicator:nth-child(2) { animation-delay: 0.3s; }
.indicator:nth-child(3) { animation-delay: 0.6s; }

@keyframes indicatorPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.5); }
}

/* Results Screen */
.results-header {
    text-align: center;
    margin-bottom: 3rem;
}

.performance-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border: 2px solid var(--neon-yellow);
    border-radius: 25px;
    background: rgba(255, 255, 0, 0.1);
    margin-top: 1rem;
}

.performance-badge span {
    color: var(--neon-yellow);
    font-weight: 700;
    text-shadow: 0 0 10px var(--neon-yellow);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.result-card {
    background: var(--bg-card);
    border: 2px solid;
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.result-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.result-card.green {
    border-color: var(--neon-green);
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), var(--bg-card));
}

.result-card.cyan {
    border-color: var(--neon-cyan);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), var(--bg-card));
}

.result-card.red {
    border-color: var(--neon-red);
    background: linear-gradient(135deg, rgba(255, 68, 68, 0.1), var(--bg-card));
}

.result-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.result-value {
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 20px currentColor;
}

.result-card.green .result-value { color: var(--neon-green); }
.result-card.cyan .result-value { color: var(--neon-cyan); }
.result-card.red .result-value { color: var(--neon-red); }

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

/* Certificate Section */
.certificate-section, .leaderboard-section {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-glow);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.certificate-card {
    background: linear-gradient(135deg, rgba(255, 255, 0, 0.1), var(--bg-card));
    border: 2px solid var(--neon-yellow);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

.certificate-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.certificate-text {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.certificate-stats {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.certificate-date {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.neon-input option {
    background-color: #ffffff;
    color: #000000;
    padding: 0.5rem;
}

/* Alternative more comprehensive styling */
.neon-input select option {
    background-color: #ffffff;
    color: #000000;
    padding: 0.5rem;
}

/* You can also add hover effects for better UX */
.neon-input option:hover {
    background-color: var(--neon-cyan);
    color: var(--bg-primary);
}

/* Leaderboard */
.leaderboard-table {
    background: var(--bg-card);
    border: 2px solid var(--border-glow);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 2rem;
}

.leaderboard-header {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr 1fr;
    gap: 1rem;
    padding: 1rem 2rem;
    background: rgba(0, 212, 255, 0.1);
    border-bottom: 2px solid var(--neon-cyan);
    font-weight: 700;
    color: var(--neon-cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.leaderboard-body {
    max-height: 300px;
    overflow-y: auto;
}

.leaderboard-row {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr 1fr;
    gap: 1rem;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-glow);
    transition: all 0.3s ease;
}

.leaderboard-row:hover {
    background: rgba(0, 212, 255, 0.05);
}

.leaderboard-row.current-user {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--neon-green);
    color: var(--neon-green);
}

.rank {
    font-weight: 700;
    color: var(--neon-yellow);
}

.rank.gold { color: #ffd700; }
.rank.silver { color: #c0c0c0; }
.rank.bronze { color: #cd7f32; }

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

.green { color: var(--neon-green); }
.cyan { color: var(--neon-cyan); }
.yellow { color: var(--neon-yellow); }
.red { color: var(--neon-red); }

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .screen {
        padding: 2rem 1.5rem;
    }
    
    .main-title {
        font-size: 3rem;
    }
    
    .sub-title {
        font-size: 2rem;
    }
    
    .screen-title {
        font-size: 2rem;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .mode-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-bar {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .time-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .text-display {
        font-size: 1.2rem;
        padding: 1.5rem;
    }
    
    .leaderboard-header,
    .leaderboard-row {
        grid-template-columns: 0.5fr 2fr 1fr 1fr;
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2.5rem;
    }
    
    .sub-title {
        font-size: 1.5rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .text-display {
        font-size: 1rem;
        padding: 1rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .result-value {
        font-size: 2rem;
    }
}