[file name]: style.css
[file content begin]
/* Custom CSS for LAMDA-RO Website - Enhanced Version */

/* Global Styles */
:root {
    --primary-color: #0d6efd;
    --primary-dark: #0a58ca;
    --secondary-color: #6c757d;
    --light-bg: #f8f9fa;
    --dark-text: #333;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    overflow-x: hidden;
}

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

/* Hero Section - Enhanced */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding-top: 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.05)"/></svg>');
    background-size: cover;
}

/* Page Header */
.page-header {
    margin-top: 76px;
    padding: 2rem 0;
    background: var(--light-bg);
}

/* Card Styles - Enhanced */
.card {
    transition: var(--transition);
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.15) !important;
}

.card-img-top {
    transition: var(--transition);
}

.card:hover .card-img-top {
    transform: scale(1.05);
}

/* Publication List */
.publication-list .card {
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.publication-list .card:hover {
    border-left-color: var(--primary-dark);
}

/* Navigation - Enhanced */
.navbar {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95) !important;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    background: rgba(13, 110, 253, 0.1);
    color: var(--primary-color) !important;
}

/* Footer - Enhanced */
footer {
    background: linear-gradient(135deg, #2c3e50, #34495e);
    color: white;
    padding: 3rem 0 1rem;
}

footer a {
    color: #ecf0f1;
    transition: var(--transition);
    text-decoration: none;
}

footer a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Custom Button Styles - Enhanced */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(13, 110, 253, 0.3);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    transition: var(--transition);
}

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

/* Section Spacing */
section {
    padding: 80px 0;
    position: relative;
}

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

/* Loading Animation */
.loading-spinner {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Adjustments - Enhanced */
@media (max-width: 768px) {
    .hero-section {
        padding-top: 80px;
        text-align: center;
        min-height: 80vh;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .card {
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 576px) {
    .display-4 {
        font-size: 2rem;
    }
    
    .hero-section {
        padding-top: 70px;
        min-height: 70vh;
    }
    
    section {
        padding: 40px 0;
    }
}

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

.border-gradient {
    border: 2px solid;
    border-image: linear-gradient(135deg, var(--primary-color), var(--primary-dark)) 1;
}

/* Smooth fade-in animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
[file content end]