/* MetaText Tools - Professional Styling */

/* CSS Variables for Theme Support */
:root {
    /* Light Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #e2e8f0;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --border-color: #e2e8f0;
    --accent-primary: #3182ce;
    --accent-secondary: #2b77c9;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --success: #48bb78;
    --warning: #ed8936;
    --error: #f56565;
}

/* Dark Theme */
[data-theme="dark"], .dark-theme {
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --bg-tertiary: #4a5568;
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #a0aec0;
    --border-color: #4a5568;
    --accent-primary: #63b3ed;
    --accent-secondary: #4299e1;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: all 0.3s ease;
}

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

/* Navigation */
.navbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.brand-icon {
    color: var(--accent-primary);
    font-size: 1.5rem;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--bg-tertiary);
}

.download-btn {
    background: var(--accent-primary);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.download-btn:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: var(--bg-primary);
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.cta-button {
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.cta-button.primary {
    background: var(--accent-primary);
    color: white;
}

.cta-button.primary:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.cta-button.secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.cta-button.secondary:hover {
    background: var(--bg-tertiary);
    transform: translateY(-2px);
}

/* Hero Demo */
.hero-demo {
    display: flex;
    justify-content: center;
}

.demo-window {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 500px;
}

.demo-header {
    background: var(--bg-tertiary);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.demo-controls {
    display: flex;
    gap: 6px;
}

.demo-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.demo-dot.red { background: #ff5f56; }
.demo-dot.yellow { background: #ffbd2e; }
.demo-dot.green { background: #27ca3f; }

.demo-title {
    font-weight: 500;
    color: var(--text-secondary);
}

.demo-content {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.demo-text, .demo-result {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    padding: 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    flex: 1;
}

.demo-arrow {
    color: var(--accent-primary);
    font-size: 1.5rem;
    font-weight: bold;
}

/* Features Overview */
.features-overview {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 48px;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-primary);
    padding: 32px 24px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.feature-count {
    display: inline-block;
    background: var(--accent-primary);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* Web Tools Interface */
.web-tools {
    padding: 80px 0;
    background: var(--bg-primary);
}

.tools-interface {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 32px;
    margin-top: 48px;
}

.tools-sidebar {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    height: fit-content;
}

.sidebar-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.category-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.category-btn {
    background: transparent;
    border: none;
    padding: 12px 16px;
    border-radius: 8px;
    text-align: left;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
}

.category-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.category-btn.active {
    background: var(--accent-primary);
    color: white;
}

.tools-main {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
}

.tool-selection {
    margin-bottom: 24px;
}

.tool-dropdown {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
}

.text-processing {
    display: grid;
    gap: 24px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.section-header h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.input-actions, .output-actions {
    display: flex;
    gap: 8px;
}

.action-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.action-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.text-area {
    width: 100%;
    min-height: 200px;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    resize: vertical;
}

.processing-controls {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: center;
}

.process-btn {
    background: var(--accent-primary);
    color: white;
    border: none;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.process-btn:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.tool-options {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

/* Download Section */
.download-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.download-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.download-info p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.download-features {
    margin-bottom: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.feature-item i {
    color: var(--success);
    font-size: 1.1rem;
}

.download-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--accent-primary);
    color: white;
    padding: 16px 32px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.download-link:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.download-size {
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.875rem;
}

.download-info-text {
    margin-top: 16px;
}

.download-info-text p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

/* Preview Window */
.preview-window {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.preview-header {
    background: var(--bg-tertiary);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.preview-controls {
    display: flex;
    gap: 6px;
}

.preview-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.preview-dot.red { background: #ff5f56; }
.preview-dot.yellow { background: #ffbd2e; }
.preview-dot.green { background: #27ca3f; }

.preview-title {
    font-weight: 500;
    color: var(--text-secondary);
}

.preview-content {
    display: flex;
    height: 300px;
}

.preview-sidebar {
    width: 200px;
    background: var(--bg-secondary);
    padding: 16px;
    border-right: 1px solid var(--border-color);
}

.sidebar-item {
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-bottom: 4px;
    color: var(--text-secondary);
}

.sidebar-item.active {
    background: var(--accent-primary);
    color: white;
}

.preview-main {
    flex: 1;
    padding: 16px;
}

.preview-toolbar {
    margin-bottom: 16px;
}

.preview-select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    width: 200px;
}

.preview-text-area {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    height: 200px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-copyright p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .download-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .tools-interface {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-container {
        padding: 0 16px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card {
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

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