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

:root {
    --bg-color: #323437;
    --sub-color: #646669;
    --text-color: #d1d0c5;
    --main-color: #e2b714;
    --caret-color: #e2b714;
    --error-color: #ca4754;
    --correct-color: #e2b714;
}

body.light-theme {
    --bg-color: #f5f5f5;
    --sub-color: #9e9e9e;
    --text-color: #424242;
    --main-color: #f57c00;
    --caret-color: #f57c00;
    --error-color: #d32f2f;
    --correct-color: #f57c00;
}

body {
    font-family: 'Roboto Mono', monospace;
    background: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background 0.3s, color 0.3s;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.timer-display {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--main-color);
    min-width: 60px;
    text-align: right;
}

.timer-display.warning {
    color: var(--error-color);
    animation: pulse 0.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.logo-icon {
    color: var(--main-color);
    font-size: 1.8rem;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--sub-color);
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s;
}

.icon-btn:hover {
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.05);
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 40px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 40px;
}

.test-config {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.config-group {
    display: flex;
    gap: 8px;
}

.config-divider {
    width: 2px;
    height: 30px;
    background: var(--sub-color);
    opacity: 0.3;
}

.config-btn {
    background: none;
    border: none;
    color: var(--sub-color);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.95rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.config-btn:hover {
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.05);
}

.config-btn.active {
    color: var(--main-color);
}

.hidden {
    display: none !important;
}

.test-area {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.language-indicator {
    position: absolute;
    top: -30px;
    left: 0;
    color: var(--sub-color);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.code-display {
    font-size: 1.5rem;
    line-height: 2.2rem;
    color: var(--sub-color);
    white-space: pre-wrap;
    word-wrap: break-word;
    position: relative;
    cursor: text;
    user-select: none;
    min-height: 200px;
}

.word {
    display: inline-block;
    margin-right: 0.5rem;
    position: relative;
}

.char {
    position: relative;
}

.char.correct {
    color: var(--text-color);
}

.char.incorrect {
    color: var(--error-color);
}

.char.current::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--caret-color);
    animation: blink 1s infinite;
}

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

.hidden-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.restart-prompt {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

.restart-btn {
    background: none;
    border: none;
    color: var(--sub-color);
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Roboto Mono', monospace;
    font-size: 1rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 10px;
}

.restart-btn:hover {
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.05);
}

.results {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.result-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

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

.result-label {
    color: var(--sub-color);
    font-size: 1rem;
    margin-bottom: 10px;
}

.result-main {
    display: flex;
    align-items: baseline;
    gap: 10px;
    justify-content: center;
}

.result-value {
    font-size: 4rem;
    color: var(--main-color);
    font-weight: 600;
    line-height: 1;
}

.result-value.error {
    color: var(--error-color);
}

@media (max-width: 768px) {
    .navbar {
        padding: 15px 20px;
    }
    
    .container {
        padding: 20px;
    }
    
    .test-config {
        gap: 10px;
    }
    
    .config-btn {
        font-size: 0.85rem;
        padding: 6px 10px;
    }
    
    .code-display {
        font-size: 1.2rem;
        line-height: 1.8rem;
    }
    
    .result-stats {
        gap: 40px;
    }
    
    .result-value {
        font-size: 3rem;
    }
}