/* Custom CSS for Eduplan Landing Page */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --light-bg: #f8fafc;
    --dark-text: #1e293b;
    --muted-text: #64748b;
    --white: #ffffff;
    --shadow: 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);
}

/* Global 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: var(--dark-text);
    scroll-behavior: smooth;
}

/* Typography */
.display-4, .display-5 {
    font-weight: 700;
    line-height: 1.2;
}

.lead {
    font-size: 1.125rem;
    font-weight: 400;
}

/* Navigation */
.navbar {
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95) !important;
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color) !important;
    transition: transform 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.nav-link {
    font-weight: 500;
    color: var(--dark-text) !important;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 100%;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(45deg, rgba(37, 99, 235, 0.05) 0%, rgba(59, 130, 246, 0.1) 100%);
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

/* Buttons */
.btn {
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark) 0%, #1e40af 100%);
}

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

.btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Cards */
.feature-card, .product-card, .client-item, .featured-product {
    transition: all 0.3s ease;
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.feature-card:hover, .product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.client-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.featured-product {
    border-left: 4px solid var(--primary-color);
}

/* Images */
img {
    transition: all 0.3s ease;
}

.img-fluid:hover {
    transform: scale(1.02);
}

/* Sections */
section {
    position: relative;
}

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

/* Statistics */
.text-primary {
    color: var(--primary-color) !important;
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scroll animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Alert styling */
.alert-info {
    background-color: rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.2);
    color: var(--primary-dark);
}

/* Footer */
footer {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding-top: 2rem;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .feature-card, .product-card {
        margin-bottom: 1rem;
    }
}

@media (max-width: 576px) {
    .display-4 {
        font-size: 2rem;
    }
    
    .display-5 {
        font-size: 1.75rem;
    }
    
    .hero-section .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Loading animation for images */
img {
    opacity: 0;
    transition: opacity 0.3s ease;
}

img.loaded {
    opacity: 1;
}

/* Hover effects for icons */
.fas, .fab {
    transition: all 0.3s ease;
}

.feature-card:hover .fas,
.product-card:hover .fas {
    transform: scale(1.1);
    color: var(--primary-color);
}

/* Background patterns */
.hero-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
    z-index: 1;
}

/* Text selection */
::selection {
    background-color: rgba(37, 99, 235, 0.2);
    color: var(--dark-text);
}

/* Focus styles */
.btn:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Gradient text */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Card hover glow effect */
.feature-card:hover,
.product-card:hover {
    box-shadow: 
        0 10px 25px -5px rgba(37, 99, 235, 0.1),
        0 10px 10px -5px rgba(37, 99, 235, 0.04),
        var(--shadow-lg);
}

/* Smooth transitions for all interactive elements */
a, button, .btn, .nav-link, .card, img {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Print styles */
@media print {
    .navbar, footer, .btn {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1, h2, h3, h4, h5, h6 {
        page-break-after: avoid;
    }
}