/* ========================================
   Station Portal - Landing Page Styles
   Modern, Clean & Professional Design
   ======================================== */

:root {
    /* Colors - Light Mode */
    --primary: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-hover: #e2e8f0;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --radius: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-hover: #475569;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #64748b;
    
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    transition: var(--transition);
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========================================
   Header
   ======================================== */

.app-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    color: var(--primary);
}

.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: var(--bg-hover);
    transform: scale(1.05);
}

.theme-toggle svg {
    color: var(--text-secondary);
}

.hidden {
    display: none !important;
}

/* ========================================
   Main Content
   ======================================== */

.main-content {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    text-align: center;
    margin-bottom: 5rem;
}

.hero-icon {
    display: inline-flex;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-lg);
}

.hero-icon svg {
    color: white;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: var(--radius);
    font-size: 1.125rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-primary svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   Features
   ======================================== */

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

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

.feature-icon {
    display: inline-flex;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}

.feature-icon svg {
    color: var(--primary);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.feature-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   Stats Bar
   ======================================== */

.stats-bar {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 2rem;
    margin-bottom: 4rem;
    box-shadow: var(--shadow);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.stat-icon {
    display: flex;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
}

.stat-icon svg {
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* ========================================
   Info Section
   ======================================== */

.info-section {
    margin-bottom: 4rem;
}

.info-card {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    display: flex;
    gap: 1.5rem;
    box-shadow: var(--shadow-lg);
}

.info-icon-wrapper {
    flex-shrink: 0;
    display: flex;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
}

.info-icon-wrapper svg {
    color: white;
}

.info-content {
    color: white;
}

.info-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.info-text {
    font-size: 1rem;
    opacity: 0.95;
    line-height: 1.7;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--primary);
}

.footer-divider {
    color: var(--text-tertiary);
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
    opacity: 0;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 768px) {
    .header-content {
        padding: 0 1rem;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .main-content {
        padding: 2rem 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .stats-bar {
        flex-direction: column;
        padding: 1.5rem;
    }
    
    .stat-divider {
        width: 100%;
        height: 1px;
    }
    
    .info-card {
        flex-direction: column;
        padding: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .hero-icon {
        padding: 1rem;
    }
    
    .hero-icon svg {
        width: 60px;
        height: 60px;
    }
    
    .btn-primary {
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   Print Styles
   ======================================== */

@media print {
    .theme-toggle,
    .footer-links {
        display: none;
    }
}