/* Custom Styles for Portfolio Website */

/* Root Variables */
:root {
    --primary-color: #0d6efd;
    --dark-color: #212529;
    --light-bg: #f8f9fa;
}

/* Global Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* Navbar Enhancements */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.navbar-brand:hover {
    color: var(--primary-color) !important;
}

.nav-link {
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link.active {
    font-weight: 600;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 400px;
    display: flex;
    align-items: center;
}

/* Card Enhancements */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    border-radius: 10px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

/* Button Styles */
.btn {
    transition: all 0.3s ease;
    border-radius: 5px;
    padding: 0.5rem 1.5rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Section Headers */
section h1, section h2 {
    font-weight: 700;
    margin-bottom: 1rem;
}

/* Page Headers (Education, Work, Achievements, Portfolio) */
.education-header,
.work-header,
.achievements-header,
.portfolio-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Footer */
footer {
    margin-top: auto;
}

/* Main content should grow to push footer down */
main {
    flex: 1;
}

/* Image Responsiveness */
img {
    max-width: 100%;
    height: auto;
}

/* Spacing Utilities */
.mb-custom {
    margin-bottom: 2rem;
}

.mt-custom {
    margin-top: 2rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero {
        min-height: 300px;
        padding: 2rem 0;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1rem;
    }
}

/* Card Body Flex for Equal Heights */
.card-body {
    display: flex;
    flex-direction: column;
}

.card-body .btn {
    margin-top: auto;
}

/* List Styling in Cards */
.card ul {
    padding-left: 1.5rem;
}

.card ul li {
    margin-bottom: 0.5rem;
}

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

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

.card,
.hero,
section {
    animation: fadeIn 0.6s ease-in-out;
}

/* Text Styles */
.text-muted {
    color: #6c757d !important;
}

/* Shadow Utilities */
.shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

/* Background Color Classes */
.bg-light {
    background-color: var(--light-bg) !important;
}

/* Dropdown Menu Enhancements */
.dropdown-menu {
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    border-radius: 8px;
}

.dropdown-item {
    transition: background-color 0.2s ease;
}

.dropdown-item:hover {
    background-color: var(--light-bg);
}

.dropdown-item.active {
    background-color: var(--primary-color);
}