/* ============================================================
   NEPTUNE ELEVATORS v2.0 — HEADER & FOOTER STYLES
   Topbar, Navbar, Mobile Menu, Footer, Back to Top
   All using design system variables
   ============================================================ */

/* ----------------------------------------------------------
   SKIP LINK (Accessibility)
   ---------------------------------------------------------- */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-loader);
    padding: var(--space-3) var(--space-6);
    background: var(--accent-primary);
    color: var(--text-on-dark);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-default);
    transition: top var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
    top: var(--space-4);
}

/* ----------------------------------------------------------
   TOPBAR
   ---------------------------------------------------------- */
.topbar {
    background: var(--navy-900);
    border-bottom: 1px solid var(--border-subtle);
    font-size: var(--text-sm);
    color: var(--text-on-dark-muted);
    transition: transform var(--duration-normal) var(--ease-out);
}

.topbar-hidden {
    transform: translateY(-100%);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 40px;
    gap: var(--space-4);
}

.topbar-contact {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

.topbar-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-on-dark-muted);
    transition: color var(--duration-fast) var(--ease-out);
    white-space: nowrap;
}

.topbar-link:hover {
    color: var(--text-on-dark);
}

.topbar-link svg {
    flex-shrink: 0;
    opacity: 0.6;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

@media (max-width: 767px) {
    /* Contact info, the Support link, and the theme toggle all move out of
       the way on mobile — nothing left in the bar, so hide it entirely. */
    .topbar {
        display: none;
    }
}

/* ----------------------------------------------------------
   NAVBAR
   ---------------------------------------------------------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--bg-primary);
    border-bottom: 1px solid transparent;
    transition: background var(--duration-normal) var(--ease-out),
                border-color var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out),
                transform var(--duration-normal) var(--ease-out);
}

.navbar-scrolled {
    background: rgba(5, 10, 20, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom-color: var(--border-subtle);
    box-shadow: var(--shadow-sm);
}

[data-theme="light"] .navbar-scrolled {
    background: rgba(245, 243, 239, 0.95);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 104px;
    gap: var(--space-6);
}

/* Logo */
.navbar-brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.navbar-logo {
    height: 76px;
    width: auto;
    max-width: 300px;
    object-fit: contain;
}

.navbar-logo-text {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--font-black);
    letter-spacing: var(--tracking-tight);
    color: var(--text-primary);
}

@media (max-width: 767px) {
    .navbar-logo {
        height: 54px;
        max-width: 220px;
    }

    .navbar-inner {
        height: 84px;
    }

    /* position:sticky on the navbar silently breaks into normal static
       flow on many mobile browsers (notably iOS Safari) whenever an
       ancestor — here, html/body — sets overflow-x to anything but
       visible, which forces the other axis to a non-visible computed
       value too and moves sticky's containing block. Rather than touch
       that global overflow-x:hidden (it's there to stop horizontal
       scroll site-wide), fix the navbar itself with position:fixed on
       mobile, which isn't affected by that rule. */
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        width: 100%;
    }

    /* Hides the header on scroll-down, shown again on scroll-up — see
       NavbarScroll in main.js. */
    .navbar-hidden {
        transform: translateY(-100%);
    }

    body {
        padding-top: 85px;
    }
}

/* Desktop Nav */
.navbar-nav {
    display: none;
    align-items: center;
    gap: 0;
}

@media (min-width: 1024px) {
    .navbar-nav {
        display: flex;
    }
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    letter-spacing: var(--tracking-normal);
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast) var(--ease-out);
    white-space: nowrap;
}

.nav-link:hover,
.nav-active .nav-link {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-active .nav-link {
    color: var(--accent-primary);
}

.nav-chevron {
    transition: transform var(--duration-fast) var(--ease-out);
    opacity: 0.5;
}

.nav-dropdown:hover .nav-chevron {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 220px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-default);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--duration-normal) var(--ease-out);
    z-index: var(--z-dropdown);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown-item {
    display: block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    letter-spacing: var(--tracking-normal);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast) var(--ease-out);
}

.nav-dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Navbar Actions */
.navbar-actions {
    display: none;
    align-items: center;
    gap: var(--space-3);
}

@media (min-width: 1024px) {
    .navbar-actions {
        display: flex;
    }
}

/* Mobile Toggle */
.navbar-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    gap: 5px;
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    transition: background var(--duration-fast) var(--ease-out);
}

.navbar-toggle:hover {
    background: var(--bg-tertiary);
}

@media (min-width: 1024px) {
    .navbar-toggle {
        display: none;
    }
}

.navbar-toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: all var(--duration-normal) var(--ease-out);
    transform-origin: center;
}

/* ----------------------------------------------------------
   MOBILE MENU
   ---------------------------------------------------------- */
.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 380px;
    height: 100vh;
    background: var(--bg-secondary);
    z-index: var(--z-modal);
    transform: translateX(100%);
    transition: transform var(--duration-slow) var(--ease-expo-out);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

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

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.mobile-menu-title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--text-primary);
}

.mobile-menu-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: all var(--duration-fast) var(--ease-out);
}

.mobile-menu-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.mobile-menu-nav {
    flex: 1;
    padding: var(--space-4) var(--space-6);
}

.mobile-nav-item {
    border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav-link {
    display: block;
    padding: var(--space-4) 0;
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    transition: color var(--duration-fast) var(--ease-out);
}

.mobile-nav-link:hover {
    color: var(--accent-primary);
}

.mobile-nav-has-children {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}

.mobile-nav-has-children .mobile-nav-link {
    flex: 1;
}

.mobile-nav-toggle {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--duration-fast) var(--ease-out);
    border-radius: var(--radius-sm);
}

.mobile-nav-toggle:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.mobile-nav-toggle svg {
    transition: transform var(--duration-normal) var(--ease-out);
}

.mobile-nav-item.open .mobile-nav-toggle svg {
    transform: rotate(180deg);
}

.mobile-nav-submenu {
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-normal) var(--ease-out);
    padding-left: var(--space-4);
}

.mobile-nav-sublink {
    display: block;
    padding: var(--space-3) 0;
    font-size: var(--text-base);
    color: var(--text-secondary);
    transition: color var(--duration-fast) var(--ease-out);
}

.mobile-nav-sublink:hover {
    color: var(--accent-primary);
}

.mobile-menu-footer {
    padding: var(--space-6);
    border-top: 1px solid var(--border-subtle);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.mobile-menu-phone {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3);
    color: var(--accent-primary);
    font-weight: var(--font-semibold);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast) var(--ease-out);
}

.mobile-menu-phone:hover {
    background: var(--accent-glow);
}

.mobile-menu-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(5, 10, 20, 0.7);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-out);
}

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

/* ----------------------------------------------------------
   FOOTER
   ---------------------------------------------------------- */
.footer {
    background: var(--navy-900);
    border-top: 1px solid var(--border-subtle);
    padding-top: var(--space-16);
    padding-bottom: var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 2fr 1.5fr 1fr 1.5fr;
    }
}

.footer-brand {
    max-width: 320px;
}

.footer-logo-link {
    display: inline-block;
    margin-bottom: var(--space-5);
}

.footer-logo {
    height: 64px;
    width: auto;
    max-width: 280px;
    object-fit: contain;
}

.footer-logo-text {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--font-black);
    letter-spacing: var(--tracking-tight);
    color: var(--text-on-dark);
}

.footer-desc {
    font-size: var(--text-sm);
    color: var(--text-on-dark-muted);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-5);
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.footer-social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-on-dark-muted);
    transition: all var(--duration-fast) var(--ease-out);
}

.footer-social-link:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: var(--accent-glow);
}

.footer-heading {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: var(--text-on-dark);
    margin-bottom: var(--space-5);
}

.footer-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-list-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-on-dark-muted);
    line-height: var(--leading-normal);
}

.footer-list-item svg {
    flex-shrink: 0;
    margin-top: 2px;
    opacity: 0.5;
}

.footer-list-item a {
    color: var(--text-on-dark-muted);
    transition: color var(--duration-fast) var(--ease-out);
}

.footer-list-item a:hover {
    color: var(--accent-primary);
}

.footer-link {
    display: block;
    font-size: var(--text-sm);
    color: var(--text-on-dark-muted);
    transition: all var(--duration-fast) var(--ease-out);
    padding: var(--space-1) 0;
}

.footer-link:hover {
    color: var(--accent-primary);
    padding-left: var(--space-2);
}

.footer-text {
    font-size: var(--text-sm);
    color: var(--text-on-dark-muted);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
}

.footer-form .form-floating {
    margin-bottom: 0;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-subtle);
    font-size: var(--text-sm);
    color: var(--text-on-dark-muted);
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-copyright a {
    color: var(--text-on-dark-secondary);
    transition: color var(--duration-fast) var(--ease-out);
}

.footer-copyright a:hover {
    color: var(--accent-primary);
}

.footer-credit a {
    color: var(--text-on-dark-muted);
    transition: color var(--duration-fast) var(--ease-out);
}

.footer-credit a:hover {
    color: var(--accent-primary);
}

/* ----------------------------------------------------------
   BACK TO TOP
   ---------------------------------------------------------- */
.back-to-top {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: var(--z-sticky);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-default);
    color: var(--text-secondary);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--duration-normal) var(--ease-out);
    cursor: pointer;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: var(--accent-glow);
    transform: translateY(-2px);
}

@media (max-width: 767px) {
    .back-to-top {
        bottom: calc(var(--mobile-cta-bar-height) + var(--space-3));
    }
}

/* ----------------------------------------------------------
   WHATSAPP FLOAT
   ---------------------------------------------------------- */
.whatsapp-float {
    position: fixed;
    bottom: var(--space-6);
    left: var(--space-6);
    z-index: var(--z-sticky);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: #FFFFFF;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    transition: transform var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out);
}

.whatsapp-float:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-lg), 0 0 0 4px rgba(37, 211, 102, 0.25);
    color: #FFFFFF;
}

@media (max-width: 767px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: calc(var(--mobile-cta-bar-height) + var(--space-3));
        left: var(--space-4);
    }
}

/* ----------------------------------------------------------
   MOBILE STICKY CONVERSION BAR
   ---------------------------------------------------------- */
.mobile-sticky-cta {
    display: none;
}

@media (max-width: 767px) {
    :root {
        --mobile-cta-bar-height: 64px;
    }

    .mobile-sticky-cta {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: var(--mobile-cta-bar-height);
        z-index: var(--z-sticky);
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-default);
        box-shadow: var(--shadow-lg);
        padding: var(--space-2) var(--space-3);
        gap: var(--space-3);
        /* Hidden by default — shown while scrolling down (and, on the
           homepage, only once the hero has scrolled past), hidden again
           while scrolling up. See NavbarScroll in main.js. */
        transform: translateY(100%);
        transition: transform var(--duration-normal) var(--ease-out);
    }

    .mobile-sticky-cta.is-visible {
        transform: translateY(0);
    }

    .mobile-sticky-cta-btn {
        flex: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--space-2);
        font-size: var(--text-sm);
        font-weight: var(--font-semibold);
        letter-spacing: var(--tracking-wide);
        text-transform: uppercase;
        border-radius: var(--radius-default);
        text-decoration: none;
        white-space: nowrap;
    }

    .mobile-sticky-cta-call {
        background: transparent;
        border: 1px solid var(--accent-primary);
        color: var(--accent-primary);
    }

    .mobile-sticky-cta-quote {
        background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-primary) 100%);
        color: var(--text-on-dark);
    }

    /* Keep in-page content (and the footer itself) from being hidden
       behind the fixed bar. */
    body {
        padding-bottom: var(--mobile-cta-bar-height);
    }
}

@media (min-width: 768px) {
    :root {
        --mobile-cta-bar-height: 0px;
    }
}

/* ----------------------------------------------------------
   MAIN CONTENT WRAPPER
   Pages should wrap content in <main id="main-content">
   ---------------------------------------------------------- */
main#main-content {
    min-height: 50vh;
}