:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --accent-color: #3f8cff; /* A nice blue, can be adjusted */
    --nav-bg: rgba(18, 18, 18, 0.95);
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color var(--transition-speed);
}

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

/* Main Content */
main {
    padding-top: 80px; /* Offset for fixed navbar */
}

/* Sections */
.slide-section {
    min-height: 90vh; /* Almost full screen height */
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 4rem 0;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-wrapper {
    background-color: var(--card-bg);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transition: transform var(--transition-speed);
}

.slide-wrapper:hover {
    transform: scale(1.02);
}

.slide-image {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 8px;
    max-height: 80vh; /* Ensure it fits on screen */
    object-fit: contain;
}

/* Footer */
footer {
    background-color: var(--card-bg);
    padding: 2rem 0;
    text-align: center;
    margin-top: 4rem;
    font-size: 0.9rem;
    color: #888;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Simple hiding for now, normally hamburger menu */
    }
    
    .logo {
        text-align: center;
        width: 100%;
    }

    .slide-section {
        min-height: auto;
        padding: 2rem 0;
    }
}