/* Layout */

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header & Nav */
.main-header {
    background-color: rgba(2, 6, 23, 0.8);
    /* Slate 950 with opacity */
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.main-header .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

/* Mobile Nav Toggle (Hidden by default on Desktop) */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-main);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Main Content */
main {
    min-height: calc(100vh - var(--header-height));
    padding-bottom: var(--spacing-3xl);
}

section {
    padding: var(--spacing-3xl) 0;
}

/* Footer */
.main-footer {
    background-color: var(--color-bg-darker);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}