/* ===================================
   Professional Landing Theme - Main CSS
   Dark Mode Support with Light Default
   =================================== */

/* Light mode variables (default) */
:root {
    /* Colors */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #475569;
    --success: #059669;
    --danger: #dc2626;
    
    /* Backgrounds */
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --bg-navbar: rgba(255, 255, 255, 0.95);
    --bg-footer: #f8fafc;
    
    /* Text */
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    /* Borders */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Dark mode variables */
[data-theme="dark"] {
    /* Backgrounds */
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --bg-navbar: rgba(15, 23, 42, 0.95);
    --bg-footer: #0f172a;
    
    /* Text */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Borders */
    --border-color: #334155;
    --border-light: #1e293b;
    
    /* Shadows - lighter in dark mode */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
}

/* Base styles */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.display-6 {
    font-size: 2.5rem;
    font-weight: 700;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.text-muted {
    color: var(--text-muted) !important;
}

/* Navbar */
.navbar {
    background-color: var(--bg-navbar) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    font-weight: 700;
    color: var(--text-primary) !important;
    font-size: 1.5rem;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    border-radius: 0.5rem;
}

.nav-link:hover {
    color: var(--primary) !important;
    background-color: var(--bg-card-hover);
}

/* Dark mode toggle button */
#theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 0.5rem;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

#theme-toggle:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--primary);
    color: var(--primary);
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border: none;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-primary {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--primary);
    color: white;
}

.btn-outline-light {
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    background: transparent;
}

.btn-outline-light:hover {
    background-color: var(--bg-card);
    border-color: var(--text-secondary);
}

/* Hero section */
.hero-section {
    padding: 8rem 0 6rem;
    background: linear-gradient(135deg, var(--bg-body) 0%, var(--bg-card) 100%);
    border-bottom: 1px solid var(--border-color);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* Badge */
.badge {
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
}

.bg-primary {
    background-color: var(--primary) !important;
}

/* Cards */
.custom-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    height: 100%;
}

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

.custom-card-bg {
    background-size: cover;
    background-position: center;
    position: relative;
}

.custom-card-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0,0,0,0.7) 100%);
    border-radius: 1rem;
}

.custom-card-bg > * {
    position: relative;
    z-index: 1;
}

/* Product card specific */
.product-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin: 1rem 0;
}

/* Category cards */
.category-card {
    background-color: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    text-decoration: none;
    display: block;
    box-shadow: var(--shadow-sm);
}

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

.category-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.category-card h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.category-card p {
    color: var(--text-secondary);
    margin: 0;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    padding: 6rem 0;
    margin: 4rem 0;
    border-radius: 2rem;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="40" height="40" xmlns="http://www.w3.org/2000/svg"><circle cx="20" cy="20" r="1" fill="white" opacity="0.1"/></svg>');
    opacity: 0.3;
}

.cta-section h2 {
    color: white;
    font-size: 2.5rem;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
}

.cta-section .btn-outline-light {
    border-color: white;
    color: white;
}

.cta-section .btn-outline-light:hover {
    background-color: white;
    color: var(--primary);
}

/* Footer */
footer {
    background-color: var(--bg-footer);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 2rem;
    margin-top: 4rem;
}

footer p {
    margin: 0.5rem 0;
}

/* Section spacing */
.section {
    padding: 4rem 0;
}

.section-title {
    margin-bottom: 3rem;
}

.section-title h2 {
    position: relative;
    display: inline-block;
}

.section-title .divider {
    height: 4px;
    width: 60px;
    background-color: var(--primary);
    margin: 1rem auto;
    border-radius: 2px;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-section {
        padding: 6rem 0 4rem;
    }
    
    .cta-section {
        padding: 4rem 0;
        margin: 3rem 1rem;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .display-6 {
        font-size: 2rem;
    }
    
    .navbar {
        padding: 0.5rem 0;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

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

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

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