/**
 * LV Peptides — header.css
 *
 * Sticky navy header styles extracted from header.php inline <style> block.
 * Covers: header layout, logo, navigation, cart icon, hamburger toggle,
 * and mobile responsive breakpoints.
 *
 * Enqueued globally via functions.php.
 *
 * @see Requirements: 15.1, 15.2, 19.1, 19.2, 19.4, 19.5
 */

/* ==========================================================================
   Skip to Content — Accessibility
   ========================================================================== */
.lv-skip-to-content {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 10000;
    background: var(--lv-teal);
    color: var(--lv-white);
    padding: var(--space-3) var(--space-6);
    font-weight: 600;
    text-decoration: none;
}

.lv-skip-to-content:focus {
    left: var(--space-4);
    top: var(--space-4);
}

/* ==========================================================================
   Header — Sticky Navy Bar
   ========================================================================== */
.lv-site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--lv-navy);
    padding: 0 var(--space-8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.lv-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    height: 72px;
}

/* Logo */
.lv-logo a {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--lv-white);
    text-decoration: none;
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.lv-logo a:hover,
.lv-logo a:focus {
    color: var(--lv-teal);
}

.lv-logo img {
    height: 80px;
    width: auto;
    max-width: 400px;
    object-fit: contain;
}

/* Navigation */
.lv-primary-nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.lv-primary-nav .menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--space-6);
}

.lv-primary-nav .menu li a {
    color: var(--lv-white);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    padding: var(--space-2) 0;
    position: relative;
    transition: color var(--transition-base);
}

.lv-primary-nav .menu li a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--lv-teal);
    transition: width var(--transition-base);
}

.lv-primary-nav .menu li a:hover,
.lv-primary-nav .menu li a:focus {
    color: var(--lv-teal);
}

.lv-primary-nav .menu li a:hover::after,
.lv-primary-nav .menu li a:focus::after {
    width: 100%;
}

.lv-primary-nav .menu li.current-menu-item a {
    color: var(--lv-teal);
}

.lv-primary-nav .menu li.current-menu-item a::after {
    width: 100%;
}

/* Cart icon */
.lv-cart-link {
    display: flex;
    align-items: center;
    position: relative;
    color: var(--lv-white);
    text-decoration: none;
    transition: color var(--transition-base);
    margin-right: 8px; /* room for the count badge */
}

.lv-cart-link:hover,
.lv-cart-link:focus {
    color: var(--lv-teal);
}

.lv-cart-link svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.lv-cart-count {
    position: absolute;
    top: -6px;
    right: -10px;
    background-color: var(--lv-teal);
    color: var(--lv-white);
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
    min-width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 9px;
    padding: 0 4px;
}

.lv-cart-count:empty {
    display: none;
}

/* Hamburger button (visible on mobile only) */
.lv-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    color: var(--lv-white);
}

.lv-hamburger svg {
    width: 28px;
    height: 28px;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    fill: none;
}

/* ==========================================================================
   Mobile — below 768px
   ========================================================================== */
@media (max-width: 767px) {
    .lv-site-header {
        padding: 0 var(--space-4);
    }

    .lv-hamburger {
        display: flex;
        align-items: center;
        justify-content: center;
        min-width: 44px;
        min-height: 44px;
    }

    .lv-primary-nav .menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background-color: var(--lv-navy);
        padding: var(--space-4);
        gap: 0;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .lv-primary-nav .menu li a {
        display: block;
        padding: var(--space-3) var(--space-4);
        min-height: 44px;
        line-height: 44px;
    }

    .lv-primary-nav .menu li a::after {
        display: none;
    }

    /* Show menu when nav-open class is toggled (handled by navigation.js) */
    .lv-primary-nav.nav-open .menu {
        display: flex;
    }
}

/* ==========================================================================
   Promotional Banner (non-Pro path)
   ========================================================================== */
.lv-promo-banner {
    background: var(--lv-teal);
    color: var(--lv-navy);
    text-align: center;
    padding: var(--space-2) var(--space-8);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 600;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
}

.lv-promo-banner p {
    margin: 0;
}

.lv-promo-dismiss {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--lv-navy);
    font-size: 18px;
    cursor: pointer;
    padding: var(--space-1);
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.lv-promo-dismiss:hover {
    opacity: 1;
}

/* Mobile header height */
@media (max-width: 767px) {
    .lv-header-inner {
        height: 60px;
    }

    .lv-logo img,
    .lv-logo svg {
        height: 48px;
    }
}