/* George Mathews Photography - Header Navigation Styles */
/* Scoped with gm- prefix for WordPress compatibility */

/* CSS Custom Properties */
.gm-header {
    --gm-header-height: 80px;
    --gm-header-bg: rgba(0, 0, 0, 0.9);
    --gm-header-bg-solid: #000000;
    --gm-text-color: #ffffff;
    --gm-text-muted: rgba(255, 255, 255, 0.7);
    --gm-accent-color: #ffffff;
    --gm-transition: 0.3s ease;
    --gm-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* Header Base */
.gm-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background-color: var(--gm-header-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    font-family: var(--gm-font-family);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.gm-header *,
.gm-header *::before,
.gm-header *::after {
    box-sizing: border-box;
}

/* Header Container */
.gm-header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    height: var(--gm-header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.gm-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    z-index: 10001;
}

.gm-logo img {
    height: 52px;
    width: auto;
    display: block;
    transition: opacity var(--gm-transition);
}

.gm-logo:hover img {
    opacity: 0.8;
}

/* Navigation */
.gm-nav {
    display: flex;
    align-items: center;
}

.gm-nav-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Nav Items */
.gm-nav-item {
    position: relative;
}

/* Nav Links */
.gm-nav-link {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.625rem 1rem;
    font-size: 0.8125rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--gm-text-color);
    background: none;
    border: none;
    cursor: pointer;
    transition: color var(--gm-transition);
    font-family: inherit;
}

.gm-nav-link:hover {
    color: var(--gm-text-muted);
}

/* Dropdown Arrow */
.gm-dropdown-arrow {
    transition: transform var(--gm-transition);
}

.gm-dropdown-toggle[aria-expanded="true"] .gm-dropdown-arrow {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.gm-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 180px;
    background-color: var(--gm-header-bg-solid);
    border: 1px solid rgba(255, 255, 255, 0.1);
    list-style: none;
    margin: 0;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--gm-transition), visibility var(--gm-transition);
}

.gm-has-dropdown:hover .gm-dropdown-menu,
.gm-has-dropdown.gm-dropdown-open .gm-dropdown-menu {
    opacity: 1;
    visibility: visible;
}

/* Dropdown Links */
.gm-dropdown-link {
    display: block;
    padding: 0.75rem 1.25rem;
    font-size: 0.8125rem;
    font-weight: 400;
    letter-spacing: 0.03em;
    text-decoration: none;
    color: var(--gm-text-muted);
    transition: color var(--gm-transition), background-color var(--gm-transition);
}

.gm-dropdown-link:hover {
    color: var(--gm-text-color);
    background-color: rgba(255, 255, 255, 0.05);
}

/* Contact CTA Button */
.gm-nav-cta {
    margin-left: 0.5rem;
}

.gm-btn-contact {
    display: inline-block;
    padding: 0.625rem 1.5rem;
    font-size: 0.8125rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--gm-header-bg-solid);
    background-color: var(--gm-accent-color);
    border: 1px solid var(--gm-accent-color);
    transition: background-color var(--gm-transition), color var(--gm-transition);
}

.gm-btn-contact:hover {
    background-color: transparent;
    color: var(--gm-accent-color);
}

/* Mobile Menu Toggle */
.gm-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 10001;
}

.gm-menu-bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--gm-text-color);
    transition: transform var(--gm-transition), opacity var(--gm-transition);
}

.gm-menu-bar:nth-child(1) {
    transform: translateY(-6px);
}

.gm-menu-bar:nth-child(3) {
    transform: translateY(6px);
}

/* Menu Toggle Active State */
.gm-menu-toggle.gm-active .gm-menu-bar:nth-child(1) {
    transform: translateY(0) rotate(45deg);
}

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

.gm-menu-toggle.gm-active .gm-menu-bar:nth-child(3) {
    transform: translateY(0) rotate(-45deg);
}

/* ==================== */
/* RESPONSIVE - TABLET  */
/* ==================== */
@media screen and (max-width: 1024px) {
    .gm-header-container {
        padding: 0 1.5rem;
    }

    .gm-nav-list {
        gap: 0.25rem;
    }

    .gm-nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.75rem;
    }

    .gm-btn-contact {
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }
}

/* ==================== */
/* RESPONSIVE - MOBILE  */
/* ==================== */
@media screen and (max-width: 768px) {
    .gm-header {
        --gm-header-height: 70px;
    }

    .gm-header-container {
        padding: 0 1rem;
    }

    .gm-logo img {
        height: 42px;
    }

    /* Show Mobile Toggle */
    .gm-menu-toggle {
        display: flex;
    }

    /* Mobile Navigation */
    .gm-nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background-color: #000000;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: var(--gm-header-height) 2rem 2rem;
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--gm-transition), visibility var(--gm-transition);
        overflow: hidden;
    }

    .gm-nav.gm-nav-open {
        opacity: 1;
        visibility: visible;
    }

    .gm-nav-list {
        flex-direction: column;
        align-items: center;
        justify-content: space-evenly;
        width: 100%;
        flex: 1;
        max-height: calc(100vh - var(--gm-header-height) - 2rem);
        max-height: calc(100dvh - var(--gm-header-height) - 2rem);
        gap: 0;
    }

    .gm-nav-item {
        text-align: center;
        width: 100%;
    }

    .gm-nav-link {
        width: 100%;
        justify-content: center;
        padding: 0.5rem 0;
        font-size: 1rem;
        letter-spacing: 0.1em;
    }

    .gm-dropdown-toggle {
        gap: 0.5rem;
    }

    /* Mobile Dropdown */
    .gm-dropdown-menu {
        position: static;
        transform: none;
        min-width: 100%;
        background-color: transparent;
        border: none;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 1;
        visibility: visible;
        transition: max-height var(--gm-transition), padding var(--gm-transition);
        text-align: center;
    }

    .gm-has-dropdown.gm-dropdown-open .gm-dropdown-menu {
        max-height: 300px;
        padding: 0.5rem 0;
    }

    .gm-dropdown-link {
        padding: 0.375rem 0;
        font-size: 0.875rem;
        letter-spacing: 0.05em;
        display: block;
        text-align: center;
    }

    .gm-dropdown-link:hover {
        background-color: transparent;
    }

    /* Mobile CTA */
    .gm-nav-cta {
        margin-left: 0;
        margin-top: 0;
        padding-top: 0;
    }

    .gm-btn-contact {
        display: inline-block;
        padding: 0.75rem 2rem;
        text-align: center;
        font-size: 0.9375rem;
    }
}

/* ====================== */
/* RESPONSIVE - SM MOBILE */
/* ====================== */
@media screen and (max-width: 480px) {
    .gm-header {
        --gm-header-height: 60px;
    }

    .gm-logo img {
        height: 36px;
    }

    .gm-nav {
        padding: var(--gm-header-height) 1rem 1.5rem;
    }

    .gm-nav-list {
        max-height: calc(100vh - var(--gm-header-height) - 1.5rem);
        max-height: calc(100dvh - var(--gm-header-height) - 1.5rem);
    }

    .gm-nav-link {
        padding: 0.375rem 0;
        font-size: 0.875rem;
    }

    .gm-dropdown-link {
        padding: 0.25rem 0;
        font-size: 0.8125rem;
    }
}

/* Accessibility - Focus Styles */
.gm-logo:focus-visible,
.gm-nav-link:focus-visible,
.gm-dropdown-link:focus-visible,
.gm-btn-contact:focus-visible,
.gm-menu-toggle:focus-visible {
    outline: none;
}

/* Remove tap highlight on mobile */
.gm-logo,
.gm-nav-link,
.gm-dropdown-link,
.gm-dropdown-toggle,
.gm-btn-contact,
.gm-menu-toggle {
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

.gm-logo:focus,
.gm-logo:active,
.gm-nav-link:focus,
.gm-dropdown-link:focus,
.gm-dropdown-toggle:focus,
.gm-btn-contact:focus,
.gm-menu-toggle:focus {
    outline: none;
    box-shadow: none;
}

.gm-logo img {
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

/* Reduce Motion */
@media (prefers-reduced-motion: reduce) {
    .gm-header *,
    .gm-header *::before,
    .gm-header *::after {
        transition: none !important;
    }
}

/* Body scroll lock when mobile menu is open */
body.gm-menu-active {
    overflow: hidden;
}