/* ================================
   LAYOUT.CSS - Grid/Flex Layout System
   ================================ */

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

/* Section */
.section {
    padding: var(--space-4xl) 0;
}

.section-alt {
    background-color: var(--color-bg-secondary);
}

.section-header {
    margin-bottom: var(--space-3xl);
}

.section-title {
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.gap-small {
    gap: var(--space-md);
}

.gap-large {
    gap: var(--space-xl);
}

/* Flexbox Utilities */
.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.flex-wrap {
    flex-wrap: wrap;
}

.flex-column {
    flex-direction: column;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: var(--z-navbar);
    transition: all var(--transition-base);
}

body.dark-mode .navbar {
    background: rgba(7, 10, 16, 0.95);
}

.navbar.scrolled {
    box-shadow: var(--shadow-card);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--gutter);
    min-height: 70px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-navy);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

body.dark-mode .logo {
    color: var(--color-gold);
}

.nav-menu {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
}

.nav-link {
    font-weight: 600;
    color: var(--color-text-primary);
    padding: var(--space-sm) 0;
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-gold);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.mobile-menu-toggle {
    display: none;
}

/* Footer */
.footer {
    background-color: var(--color-navy-dark);
    color: #E5E7EB;
    padding: var(--space-4xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-title {
    color: var(--color-gold);
    font-size: 24px;
    margin-bottom: var(--space-md);
}

.footer-heading {
    color: #fff;
    font-size: 18px;
    margin-bottom: var(--space-md);
}

.footer-text {
    color: #94A3B8;
    line-height: 1.7;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    color: #94A3B8;
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-gold);
    padding-right: 4px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: #94A3B8;
}

.footer-contact svg {
    flex-shrink: 0;
    color: var(--color-gold);
}

.social-links {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: #fff;
    transition: var(--transition-base);
}

.social-link:hover {
    background: var(--color-gold);
    color: var(--color-navy-dark);
    transform: translateY(-2px);
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #94A3B8;
}

/* Responsive */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 70px);
        background: var(--color-bg-primary);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--space-xl);
        gap: var(--space-lg);
        transition: right 0.3s ease;
        box-shadow: var(--shadow-modal);
        border-right: 1px solid var(--color-border);
    }

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

    .mobile-menu-toggle {
        display: block;
    }

    .navbar-actions .btn-primary {
        display: none;
    }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .section {
        padding: var(--space-3xl) 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
}