/* Global Styles */
:root {
    --primary-color: #003366;
    /* Deep Navy Blue - Professional & Trust */
    --secondary-color: #005b96;
    /* Lighter Blue - IIA Brand Accent */
    --accent-color: #b3a369;
    /* Gold - Premium feel */
    --text-color: #333333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --font-main: 'Poppins', sans-serif;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 10px 15px rgba(0, 0, 0, 0.15);
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

.text-center {
    text-align: center;
}

.bg-light {
    background-color: #f4f7f6;
}

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

.text-white {
    color: var(--white);
}

.section-header {
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.bg-dark .section-header h2 {
    color: var(--white);
}

.line-divider {
    width: 80px;
    height: 4px;
    background-color: var(--accent-color);
    margin: 0 auto 20px;
    border-radius: 2px;
}

.shadow-md {
    box-shadow: var(--shadow);
}

.shadow-lg {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.responsive-img {
    border-radius: 8px;
    transition: var(--transition);
}

.responsive-img:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 15px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links li a {
    font-weight: 500;
    color: var(--primary-color);
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
}

.nav-links li a:not(.btn-register)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent-color);
    transition: var(--transition);
}

.nav-links li a:not(.btn-register):hover::after {
    width: 100%;
}

.btn-register {
    padding: 10px 25px;
    background-color: var(--primary-color);
    color: var(--white) !important;
    border-radius: 50px;
    font-weight: 600;
    border: 2px solid var(--primary-color);
    transition: var(--transition);
}

.btn-register:hover {
    background-color: transparent;
    color: var(--primary-color) !important;
}

.menu-toggle {
    display: none;
    /* Hidden on desktop */
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    padding: 0;
    margin: 0;
    width: 100%;
    overflow: hidden;
}

.hero-image-wrapper {
    width: 100%;
    margin: 0;
    padding: 0;
}

.hero-image-wrapper img {
    width: 100%;
    height: auto;
    max-height: 800px;
    object-fit: cover;
    border-radius: 0;
    display: block;
}

/* Lightbox/Zoom-out Styles */
.lightbox-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
}

.lightbox-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90vh;
    animation-name: zoom;
    animation-duration: 0.6s;
}

@keyframes zoom {
    from {
        transform: scale(0)
    }

    to {
        transform: scale(1)
    }
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
}

.close-btn:hover,
.close-btn:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

.img-zoomable {
    cursor: pointer;
}

/* Agenda Section */
.agenda-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.agenda-item {
    background: var(--white);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
}

.agenda-item h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.image-card {
    overflow: hidden;
    border-radius: 8px;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    padding: 15px 40px;
    background-color: var(--accent-color);
    color: var(--white);
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(179, 163, 105, 0.4);
}

.btn-primary:hover {
    background-color: #9e8e56;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(179, 163, 105, 0.6);
}

/* Footer */
.footer {
    background-color: #0e1a2b;
    /* Very dark blue */
    color: #a0a0a0;
    padding: 50px 0 20px;
    margin-top: auto;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-social {
    display: flex;
    gap: 20px;
}

.footer-social a {
    color: var(--white);
    font-size: 1.2rem;
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar {
        padding: 10px 0;
    }

    .menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: 20px 0;
        box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .agenda-grid {
        grid-template-columns: 1fr;
    }
}