/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header styles */
.header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

/* Navigation Links */
.nav-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.header h1 i {
    margin-right: 15px;
    color: #ffd700;
}

.header p {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 300;
}

/* Main content */
.main-content {
    flex: 1;
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
}

/* Input section */
.input-section {
    margin-bottom: 40px;
}

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

textarea {
    width: 100%;
    padding: 20px;
    border: 2px solid #e1e5e9;
    border-radius: 15px;
    font-size: 16px;
    font-family: inherit;
    resize: vertical;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

textarea:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.counter-info {
    display: flex;
    justify-content: space-between;
    margin-top: 15px;
    font-size: 14px;
    color: #6c757d;
}

.word-count, .char-count {
    background: #e9ecef;
    padding: 5px 12px;
    border-radius: 20px;
    font-weight: 500;
}

.check-button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 auto;
}

.check-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.check-button:active {
    transform: translateY(0);
}

.check-button i {
    font-size: 16px;
}

/* Result section */
.result-section {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 30px;
    margin-top: 30px;
}

.result-section h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-size: 2rem;
}

.result-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 30px;
    align-items: center;
    margin-bottom: 30px;
}

.percentage-display {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.percentage-circle {
    text-align: center;
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    min-width: 120px;
}

.percentage-circle span {
    font-size: 2.5rem;
    font-weight: 700;
    color: #667eea;
    display: block;
}

.percentage-label {
    font-size: 14px;
    color: #6c757d;
    margin-top: 5px;
    font-weight: 500;
}

.result-description h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.result-description p {
    color: #6c757d;
    line-height: 1.6;
    font-size: 1.1rem;
}

/* Confidence meter */
.confidence-meter {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.meter-label {
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.meter-bar {
    height: 12px;
    background: #e9ecef;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 10px;
}

.meter-fill {
    height: 100%;
    background: linear-gradient(90deg, #28a745, #20c997);
    border-radius: 6px;
    transition: width 0.5s ease;
    width: 0%;
}

.meter-text {
    font-size: 14px;
    color: #6c757d;
    text-align: center;
}

/* Loading section */
.loading-section {
    text-align: center;
    padding: 40px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #e9ecef;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.loading-section p {
    color: #6c757d;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 40px;
    color: white;
    opacity: 0.8;
}

.footer-links {
    margin-top: 10px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
}

/* Utility classes */
.hidden {
    display: none;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .main-content {
        padding: 25px;
    }
    
    .header h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 10px;
    }
    
    .nav-link {
        text-align: center;
    }
    
    .result-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .percentage-display {
        flex-direction: column;
        gap: 15px;
    }
    
    .percentage-circle {
        min-width: auto;
    }
    
    .check-button {
        padding: 12px 30px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 2rem;
    }
    
    .main-content {
        padding: 20px;
    }
    
    .counter-info {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }
}