/* Base Styles */
:root {
    --primary-color: #0078d4;
    --primary-light: #e5f3ff;
    --text-color: #333;
    --text-light: #666;
    --success-color: #28a745;
    --error-color: #dc3545;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --border-color: #dee2e6;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

/* App Container */
.app-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.app-header {
    text-align: center;
    margin-bottom: 30px;
}

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

.app-icon {
    width: 40px;
    height: 40px;
    fill: var(--primary-color);
}

.app-header h1 {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 600;
}

/* Main Content */
.main-content {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow);
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--primary-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-state p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Test Area */
.test-area {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.quote-display {
    font-size: 1.3rem;
    line-height: 1.8;
    padding: 20px;
    background: var(--primary-light);
    border-radius: 8px;
    min-height: 100px;
    border: 1px solid var(--border-color);
}

.typing-input {
    display: flex;
    justify-content: center;
}

.typing-input input {
    font-size: 1.2rem;
    padding: 12px 20px;
    width: 100%;
    max-width: 600px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: border-color 0.3s;
}

.typing-input input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* HUD */
.hud {
    display: flex;
    justify-content: space-around;
    background: var(--card-bg);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.hud-item {
    text-align: center;
}

.hud-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 5px;
}

.hud-value {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Results Section */
.results-section {
    text-align: center;
}

.results-section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.result-item {
    background: var(--primary-light);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.result-item h3 {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 10px;
}

.result-item p {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Charts */
.charts-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 30px 0;
}

.chart {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.chart h3 {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 15px;
}

.svg-chart {
    width: 100%;
    height: 250px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.btn:hover {
    background-color: #005a9e;
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

/* Text Highlighting */
.quote-display span {
    transition: color 0.1s;
}

.quote-display .correct {
    color: var(--success-color);
}

.quote-display .incorrect {
    color: var(--error-color);
    text-decoration: underline;
}

.quote-display .untyped {
    color: var(--text-color);
}

/* Responsive */
@media (max-width: 768px) {
    .charts-container {
        grid-template-columns: 1fr;
    }

    .quote-display {
        font-size: 1.1rem;
    }

    .hud {
        flex-direction: column;
        gap: 10px;
    }
}

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