/* Layout - Grid, Header, Footer, Structure */

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-narrow {
    max-width: 1000px;
}

/* Sections */
section {
    padding: var(--space-xxl) 0;
}

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

section.bg-dark {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
}

/* Header */
.site-header {
    background-color: var(--color-bg);
    box-shadow: var(--shadow-nav);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: 80px;
    /* Fixed height for consistency */
}

.header-container {
    max-width: 1440px;
    /* Slightly wider for nav */
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo img {
    display: block;
    height: auto;
    width: auto;
    max-height: 50px;
    max-width: 180px;
    object-fit: contain;
}

/* Navigation - Desktop */
.main-nav {
    display: block;
}

.nav-list {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-item a {
    font-weight: 600;
    font-size: var(--font-size-md);
    color: var(--color-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

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

/* Dropdown Menu */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-bg);
    box-shadow: var(--shadow-card);
    border-radius: var(--radius-sm);
    padding: var(--space-sm) 0;
    min-width: 240px;

    /* Hidden state */
    display: none;
    opacity: 0;
    pointer-events: none;

    flex-direction: column;
    border-top: 3px solid var(--color-primary);
    z-index: 1100;
    transition: opacity 0.2s ease;
}

/* Dropdown Reveal */
.nav-item.has-dropdown:hover .nav-dropdown,
.nav-item.has-dropdown:focus-within .nav-dropdown {
    display: flex;
    opacity: 1;
    pointer-events: auto;
}

.nav-dropdown li {
    width: 100%;
    display: block;
}

.nav-dropdown li a {
    display: block;
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    white-space: nowrap;
    width: 100%;
}

.nav-dropdown li a:hover {
    background-color: var(--color-bg-muted);
    color: var(--color-primary);
}

/* Mobile Nav Toggle (Hidden on Desktop) */
.mobile-toggle {
    display: none;
}

/* Footer */
.site-footer {
    background-color: var(--color-secondary);
    color: var(--color-text-light);
    padding-top: var(--space-xxl);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md) var(--space-xl);
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-xl);
}

.footer-brand .footer-tagline {
    margin-top: var(--space-sm);
    color: #a0aebf;
    font-size: var(--font-size-sm);
}

.footer-col h3 {
    color: var(--color-text-light);
    font-size: var(--font-size-md);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-md);
}

.footer-col ul li {
    margin-bottom: var(--space-xs);
}

.footer-col a {
    color: #cbd5e1;
    font-size: var(--font-size-sm);
}

.footer-col a:hover {
    color: var(--color-bg);
}

.footer-contact p {
    color: #cbd5e1;
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xs);
}

.footer-contact a {
    color: var(--color-b);
    text-decoration: underline;
}

.footer-legal {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-md) var(--space-md);
    text-align: center;
    font-size: var(--font-size-xs);
    color: #94a3b8;
    max-width: 1280px;
    margin: 0 auto;
}

.footer-legal a {
    color: #94a3b8;
}

.footer-legal a:hover {
    color: var(--color-bg);
}

/* Mobile Navigation System */
@media (max-width: 980px) {

    /* Header Layout Protection */
    .header-container {
        gap: 16px;
    }

    .logo {
        flex: 0 0 auto;
        /* Prevent squeezing */
    }

    /* Hide Desktop Elements */
    .main-nav,
    .header-cta .btn {
        display: none;
    }

    /* Show Mobile Toggle */
    .mobile-menu-toggle {
        display: block;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 10px;
        z-index: 1200;
        position: relative;
    }

    .mobile-menu-toggle span {
        display: block;
        width: 25px;
        height: 2px;
        background-color: var(--color-secondary);
        margin: 5px 0;
        transition: all 0.3s ease;
    }

    /* Toggle Animation */
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* Overlay */
    .mobile-menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.6);
        z-index: 1100;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    .mobile-menu-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    /* Mobile Menu Container */
    .mobile-menu {
        position: fixed;
        top: 0;
        right: 0;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: #0A1931;
        /* Navy */
        z-index: 1150;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        padding: 80px 0 20px 0;
        overflow-y: auto;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
    }

    .mobile-menu.active {
        transform: translateX(0);
    }

    /* Mobile Nav List */
    .mobile-nav-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .mobile-nav-list>li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    }

    .mobile-nav-list a {
        display: block;
        padding: 16px 24px;
        color: #FFFFFF;
        text-decoration: none;
        font-size: 1.1rem;
        font-weight: 500;
        min-height: 44px;
        /* Tap target */
    }

    /* Submenu Toggles */
    .mobile-submenu-toggle {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        background: transparent;
        border: none;
        padding: 16px 24px;
        color: #FFFFFF;
        font-size: 1.1rem;
        font-weight: 500;
        text-align: left;
        cursor: pointer;
        min-height: 44px;
    }

    .mobile-submenu-toggle .arrow {
        font-size: 0.8rem;
        transition: transform 0.3s ease;
    }

    /* Submenu Accordion */
    .mobile-submenu {
        list-style: none;
        padding: 0;
        margin: 0;
        max-height: 0;
        overflow: hidden;
        background-color: rgba(0, 0, 0, 0.2);
        transition: max-height 0.3s ease-out;
    }

    .mobile-submenu li a {
        padding: 12px 24px 12px 40px;
        /* Indented */
        font-size: 1rem;
        color: rgba(255, 255, 255, 0.85);
    }

    /* Mobile CTA */
    .mobile-cta {
        display: block;
        margin: 24px;
        text-align: center;
        width: calc(100% - 48px);
    }
}

/* Ensure desktop elements are visible above breakpoint */
@media (min-width: 981px) {

    .mobile-menu-toggle,
    .mobile-menu-overlay,
    .mobile-menu {
        display: none !important;
    }
}