:root {
    --primary-color: #1A237E; /* Dark Blue */
    --accent-color: #A0C4E4; /* Light Blue */
    --text-color: #1A237E;
    --subtext-color: #5C677D;
    --bg-color: #FFFFFF;
    --section-bg: #F8FAFC;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.animate {
    animation: fadeInUp 0.8s ease forwards;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

p {
    color: var(--subtext-color);
}

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0;
}

.flex {
    display: flex;
    align-items: center;
}

.grid {
    display: grid;
    gap: 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #0D1650;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(26, 35, 126, 0.2);
}

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

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

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(160, 196, 228, 0.2);
    display: flex;
    align-items: center;
}

header .container {
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.logo img {
    height: 55px;
    object-fit: contain;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 3rem;
}

nav a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

nav a:hover {
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(26, 35, 126, 0.7), rgba(26, 35, 126, 0.7)), url('assets/hero.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    color: white;
    padding-top: 100px;
}

.hero h1 {
    font-size: 4rem;
    max-width: 800px;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-bottom: 2.5rem;
}

.hero-btns {
    display: flex;
    gap: 1rem;
}

/* About Section */
.about-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 1rem;
}

.about-content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
}

.about-content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.president-badge {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--section-bg);
    border-left: 4px solid var(--accent-color);
    border-radius: 0 8px 8px 0;
}

.president-badge h4 {
    color: var(--primary-color);
}

/* Portfolio Section */
.portfolio {
    background: var(--section-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
}

.category-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.category-card {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    transition: var(--transition);
    border-bottom: 4px solid transparent;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    border-color: var(--accent-color);
}

.category-card i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.category-card h3 {
    margin-bottom: 1rem;
}

/* Contact Section */
.contact-grid {
    grid-template-columns: 1fr 1.5fr;
}

.contact-info div {
    margin-bottom: 2rem;
}

.contact-info h3 {
    margin-bottom: 0.5rem;
}

form {
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.input-group input, 
.input-group textarea,
.input-group select {
    width: 100%;
    padding: 1rem;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    font-family: inherit;
    transition: var(--transition);
}

.input-group input:focus, 
.input-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(160, 196, 228, 0.2);
}

/* Footer */
footer {
    background: #0A0F3D;
    color: white;
    padding: 5rem 0 2rem;
}

.footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
    margin-bottom: 4rem;
}

.footer-logo img {
    height: 50px;
    margin-bottom: 1.5rem;
    filter: brightness(0) invert(1);
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-links h4 {
    margin-bottom: 1.5rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .about-grid, .contact-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
    
    nav {
        display: none;
    }
    
    .section {
        padding: 5rem 0;
    }
}