/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-dark: #1a1a1a;
    --primary-blue: #2c3e50;
    --accent-blue: #3498db;
    --usd-red: #AD0000;
    --informs-blue: #003087;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #95a5a6;
    --text-white: #FFFFFF;
    --text-light-gray: #F5F5F5;
    --background-white: #ffffff;
    --background-light: #f8f9fa;
    --background-subtle: #ecf0f1;
    --border-light: #e8e9ea;
    --shadow-subtle: rgba(0, 0, 0, 0.03);
    --shadow-soft: rgba(0, 0, 0, 0.06);
    --shadow-button: rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    overflow-x: hidden;
    background: var(--background-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 400;
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

h1 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

h2 {
    font-size: 2.2rem;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.3;
}

h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.4;
}

h4 {
    font-size: 1.3rem;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.4;
}

p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    z-index: 1000;
    padding: 1.5rem 0;
    transition: all 0.4s ease;
    border-bottom: 1px solid var(--border-light);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo img {
    height: 42px;
    opacity: 0.9;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-family: 'Roboto', sans-serif;
    font-weight: 400;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
    letter-spacing: 0.01em;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent-blue);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

/* Slideshow */
.hero-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.45) 0%, rgba(0, 0, 0, 0.35) 100%);
}

/* Slideshow Navigation */
.slideshow-nav {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-dot.active {
    background: white;
    border-color: white;
}

.nav-dot:hover {
    border-color: white;
}

/* Slideshow Controls */
.slideshow-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 0;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    backdrop-filter: blur(10px);
}

.slideshow-control:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.slideshow-control.prev {
    left: 30px;
}

.slideshow-control.next {
    right: 30px;
}

.slideshow-control i {
    font-size: 1.2rem;
}

.hero-overlay {
    position: relative;
    z-index: 5;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 800px;
    padding: 0 2rem;
}

.hero-content h1 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    color: var(--text-white);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    line-height: 1.1;
}

.hero-content h2 {
    font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1.4rem;
    margin-bottom: 2rem;
    color: var(--text-light-gray);
    font-weight: 500;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
    line-height: 1.3;
}

.hero-content p {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.1rem;
    font-weight: 300;
    font-style: italic;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-light-gray);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    line-height: 1.6;
}

/* Buttons */
.cta-button {
    display: inline-block;
    padding: 16px 32px;
    background: var(--usd-red);
    color: var(--text-white);
    text-decoration: none;
    border-radius: 8px;
    font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    letter-spacing: 0.01em;
    position: relative;
    box-shadow: 0 4px 12px var(--shadow-button);
    cursor: pointer;
}

.cta-button:hover {
    background: #950000;
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(173, 0, 0, 0.3);
}

.cta-button.secondary {
    background: var(--informs-blue);
    color: var(--text-white);
    border: none;
}

.cta-button.secondary:hover {
    background: #002a6b;
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 48, 135, 0.3);
}

/* Welcome Section */
.welcome {
    padding: 120px 0;
    background: var(--background-white);
    text-align: center;
}

.welcome h2 {
    margin-bottom: 3rem;
}

.welcome p {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* Executive Board Section */
.executive-board {
    padding: 120px 0;
    background: var(--background-light);
}

.executive-board h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.board-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.board-card {
    background: var(--background-white);
    border-radius: 0;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: 0 1px 3px var(--shadow-subtle);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    position: relative;
}

.board-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-blue);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.board-card:hover::before {
    transform: scaleX(1);
}

.board-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-soft);
}

.member-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--background-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    color: var(--text-secondary);
    font-size: 1.8rem;
    border: 1px solid var(--border-light);
    overflow: hidden;
    position: relative;
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.member-photo i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.board-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.role {
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.member-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.member-links a {
    color: var(--text-light);
    font-size: 1.1rem;
    transition: color 0.3s ease;
    padding: 8px;
}

.member-links a:hover {
    color: var(--accent-blue);
}

/* About Section */
.about {
    padding: 120px 0;
    background: var(--background-white);
}

.about h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.about > .container > p {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
    font-size: 1.1rem;
}

.goals-section h3 {
    text-align: center;
    margin-bottom: 4rem;
}

.goals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.goal-item {
    background: var(--background-white);
    padding: 3rem 2rem;
    border-radius: 0;
    text-align: center;
    box-shadow: none;
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    position: relative;
}

.goal-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent-blue);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.goal-item:hover::after {
    transform: scaleX(1);
}

.goal-item:hover {
    border-color: var(--text-light);
}

.goal-item i {
    font-size: 2.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.goal-item h4 {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

/* Events & Resources Section */
.events-resources {
    padding: 120px 0;
    background: var(--background-light);
}

.events-resources h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.events-section,
.resources-section {
    margin-bottom: 5rem;
}

.events-section h3,
.resources-section h3 {
    text-align: center;
    margin-bottom: 3rem;
}

.events-section > p {
    text-align: center;
    margin-bottom: 4rem;
    color: var(--text-secondary);
}

/* Events Timeline */
.events-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.event-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--background-white);
    border-radius: 0;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.event-item:hover {
    border-color: var(--text-light);
}

.event-icon {
    background: var(--background-subtle);
    color: var(--text-secondary);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid var(--border-light);
}

.event-content h4 {
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.event-content p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Resources Grid */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.resource-card {
    background: var(--background-white);
    padding: 3rem 2rem;
    border-radius: 0;
    text-align: center;
    box-shadow: 0 1px 3px var(--shadow-subtle);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    position: relative;
}

.resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent-blue);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.resource-card:hover::before {
    transform: scaleX(1);
}

.resource-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--shadow-soft);
}

.resource-card i {
    font-size: 2.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.resource-card h4 {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.resource-card p {
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.resource-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 400;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    transition: color 0.3s ease;
    padding: 8px 16px;
    border: 1px solid var(--border-light);
    display: inline-block;
}

.resource-link:hover {
    color: var(--accent-blue);
    border-color: var(--text-light);
}

/* CTA Section */
.cta-section {
    background: var(--background-subtle);
    color: var(--text-primary);
    padding: 4rem 3rem;
    border-radius: 0;
    text-align: center;
    margin-top: 4rem;
    border: 1px solid var(--border-light);
}

.cta-section h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.cta-section p {
    margin-bottom: 3rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.cta-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .cta-button {
    background: var(--background-white);
    color: var(--text-primary);
    border-color: var(--border-light);
}

.cta-buttons .cta-button:hover {
    border-color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--primary-dark);
    color: var(--text-light);
    padding: 4rem 0 2rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    color: var(--background-white);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

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

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

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.footer-section a:hover {
    color: var(--background-white);
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    background: transparent;
    color: var(--text-light);
    width: 40px;
    height: 40px;
    border: 1px solid var(--text-light);
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--background-white);
    color: var(--primary-dark);
    border-color: var(--background-white);
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 2rem;
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 90px;
        flex-direction: column;
        background-color: var(--background-white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 4px 12px var(--shadow-soft);
        padding: 3rem 0;
        border-top: 1px solid var(--border-light);
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-content h1 {
        font-size: 2.8rem;
        font-weight: 700;
    }

    .hero-content h2 {
        font-size: 1.2rem;
        font-weight: 500;
    }

    .hero-content p {
        font-size: 1rem;
        font-weight: 300;
    }

    h2 {
        font-size: 1.8rem;
    }

    .container {
        padding: 0 20px;
    }

    .welcome, .executive-board, .about, .events-resources {
        padding: 80px 0;
    }

    .board-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .goals-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .events-timeline {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .resources-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .board-card,
    .goal-item,
    .resource-card {
        padding: 1.5rem;
    }
}

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

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}