/* Reset overflow */
html, body {
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

/* Layout base */
nav {
    background: var(--card-bg);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

main {
    margin-top: 80px;
    min-height: calc(100vh - 160px);
    width: 100%;
    padding: 0;
}

/* Content Container */
.content-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
    box-sizing: border-box;
}

/* Hero Section */
.hero-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    width: 100%;
    box-sizing: border-box;
    background-image: url('../images/KOI.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    color: white;
    filter: brightness(1.1);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: 1;
}

/* Quick Links Section */
.quick-links {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 4rem 2rem;
    background: var(--light-bg);
}

@media (max-width: 768px) {
    .quick-links {
        grid-template-columns: 1fr;
        padding: 2rem 1rem;
    }
}

/* Footer */
footer {
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

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

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    text-decoration: underline;
}