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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-color: #0f172a;
    --surface-color: #1e293b;
    --surface-light: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #475569;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    padding: 60px 20px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-clip: text;
    -webkit-background-clip: text;
}

.title {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.language-selector {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
}

.lang-btn {
    padding: 8px 16px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.lang-btn:hover {
    background: var(--surface-light);
    color: var(--text-primary);
}

.lang-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.main-content {
    padding: 40px 0;
}

.analyzer-section {
    background: var(--surface-color);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.input-container {
    margin-bottom: 30px;
}

.input-label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: var(--text-primary);
}

.password-field {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input {
    width: 100%;
    padding: 15px;
    padding-right: 50px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1.1rem;
    transition: border-color 0.3s ease;
}

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

.toggle-visibility {
    position: absolute;
    right: 15px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 5px;
    transition: color 0.3s ease;
}

.toggle-visibility:hover {
    color: var(--text-primary);
}

.eye-icon {
    width: 24px;
    height: 24px;
}

.strength-meter {
    margin-bottom: 30px;
}

.strength-bar-container {
    height: 8px;
    background: var(--bg-color);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

.strength-bar {
    height: 100%;
    width: 0;
    transition: width 0.3s ease, background-color 0.3s ease;
    border-radius: 10px;
}

.strength-label {
    font-weight: 600;
    font-size: 1.1rem;
    text-align: center;
    transition: color 0.3s ease;
}

.analysis-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.result-card {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.result-card h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.entropy-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.entropy-unit {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-left: 5px;
}

.entropy-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.char-analysis {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.char-type {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    background: var(--surface-color);
    border-radius: 8px;
}

.char-icon {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-light);
    border-radius: 6px;
    font-weight: 600;
    color: var(--primary-color);
}

.char-status {
    margin-left: auto;
    font-weight: 600;
    color: var(--danger-color);
}

.char-status.success {
    color: var(--success-color);
}

.weakness-list {
    list-style: none;
}

.weakness-list li {
    padding: 8px 0;
    color: var(--warning-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.weakness-list li::before {
    content: '⚠';
}

.no-weakness {
    color: var(--success-color) !important;
}

.no-weakness::before {
    content: '✓' !important;
}

.crack-time {
    text-align: center;
}

.time-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-light);
}

.generator-section {
    background: var(--surface-color);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
}

.generator-section h2 {
    margin-bottom: 25px;
    color: var(--text-primary);
}

.generator-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 15px;
}

.control-group label {
    min-width: 60px;
    color: var(--text-secondary);
}

.slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--surface-light);
    border-radius: 5px;
    outline: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

#length-value {
    min-width: 30px;
    text-align: center;
    font-weight: 600;
    color: var(--primary-color);
}

.options-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.checkbox-label:hover {
    color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.generate-btn {
    padding: 12px 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.1s ease;
}

.generate-btn:hover {
    background: var(--primary-dark);
}

.generate-btn:active {
    transform: scale(0.98);
}

.generated-password-container {
    display: none;
    gap: 10px;
    align-items: center;
}

.generated-password {
    flex: 1;
    padding: 12px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
}

.copy-btn {
    padding: 12px 20px;
    background: var(--surface-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.copy-btn.copied {
    background: var(--success-color);
    border-color: var(--success-color);
}

.tips-section {
    margin-top: 40px;
}

.tips-section h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.tip-card {
    background: var(--surface-color);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tip-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.1);
}

.tip-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.tip-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.footer {
    text-align: center;
    padding: 40px 20px;
    margin-top: 60px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .title {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .analyzer-section,
    .generator-section {
        padding: 20px;
    }
    
    .analysis-results {
        grid-template-columns: 1fr;
    }
    
    .options-group {
        grid-template-columns: 1fr;
    }
    
    .language-selector {
        flex-wrap: wrap;
    }
}