/* ============================================================
   NAV.CSS — Sticky Navigation Styles
   Artistry Academy Theme
   ============================================================ */

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 500;
    padding: 1.5rem 0;
    transition: background 0.35s ease, box-shadow 0.35s ease, padding 0.35s ease;
}

/* Transparent state (over hero) */
.site-header.transparent {
    background: transparent;
}

/* Scrolled state */
.site-header.scrolled {
    background: rgba(15,15,16,0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.5);
    padding: 1rem 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

/* ============================================================
   LOGO
   ============================================================ */
.site-logo {
    flex-shrink: 0;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.site-logo img {
    height: 44px;
    width: auto;
}

.site-logo__text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    transition: color var(--transition-base);
    line-height: 1.1;
}
.site-logo__text span {
    display: block;
    font-size: 0.65rem;
    font-family: var(--font-body);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-weight: 400;
    color: var(--color-accent);
}

.site-header.scrolled .site-logo__text {
    color: var(--white);
}

/* ============================================================
   PRIMARY NAVIGATION
   ============================================================ */
.primary-nav {
    display: flex;
    align-items: center;
    gap: 0;
}

.primary-nav__list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.primary-nav__item {
    position: relative;
}

.primary-nav__link {
    display: block;
    padding: 0.5rem 0.9rem;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    transition: color var(--transition-base);
    border-radius: 3px;
    white-space: nowrap;
}
.primary-nav__link:hover {
    color: var(--color-accent);
}
.site-header.scrolled .primary-nav__link {
    color: rgba(255,255,255,0.85);
}
.site-header.scrolled .primary-nav__link:hover {
    color: var(--primary);
}

/* Active (current page) state */
.primary-nav__link.is-active {
    color: var(--color-accent);
    font-weight: 600;
    position: relative;
}
.primary-nav__link.is-active::after {
    content: '';
    position: absolute;
    left: 0.9rem;
    right: 0.9rem;
    bottom: 0.15rem;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
}
.site-header.scrolled .primary-nav__link.is-active {
    color: var(--color-accent);
}

/* ============================================================
   DROPDOWN MENUS
   ============================================================ */
.primary-nav__item--has-dropdown:hover .dropdown-menu,
.primary-nav__item--has-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
    transition-delay: 0s;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    min-width: 220px;
    background: var(--dark-light);
    border-radius: var(--radius-card);
    box-shadow: 0 8px 40px rgba(0,0,0,0.5);
    padding: 0.5rem 0;
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    /* 0.25s close delay = forgiving hover when moving into the submenu */
    transition: opacity 0.2s ease 0.25s, transform 0.2s ease 0.25s;
    border-top: 2px solid var(--primary);
    z-index: 100;
}

/* Invisible bridge covering the gap between the nav link and the
   dropdown so hover isn't lost while the cursor crosses it */
.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -0.85rem;
    left: 0;
    right: 0;
    height: 0.85rem;
}

.dropdown-menu a {
    display: block;
    padding: 0.65rem 1.25rem;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: background var(--transition-base), color var(--transition-base);
}
.dropdown-menu a:hover {
    background: rgba(218,189,78,0.1);
    color: var(--primary);
}

/* Toggle arrow indicator */
.primary-nav__item--has-dropdown > .primary-nav__link::before {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    margin-left: 6px;
    vertical-align: middle;
    opacity: 0.6;
}

/* ============================================================
   HEADER CTA BUTTON
   ============================================================ */
.header-cta {
    flex-shrink: 0;
}

/* ============================================================
   HAMBURGER BUTTON
   ============================================================ */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
}

.hamburger:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 4px;
    border-radius: 2px;
}

.hamburger__line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
    transform-origin: center;
}

.site-header.scrolled .hamburger__line {
    background: var(--white);
}

/* Hamburger → X animation */
.hamburger.open .hamburger__line:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}
.hamburger.open .hamburger__line:nth-child(2) {
    opacity: 0;
}
.hamburger.open .hamburger__line:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* ============================================================
   MOBILE FULL-SCREEN OVERLAY MENU
   ============================================================ */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 400;
    background: var(--color-bg-dark);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
    padding: 6rem 2rem 3rem;
}

.mobile-menu-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.mobile-nav__list {
    list-style: none;
    text-align: center;
    width: 100%;
    max-width: 400px;
}

.mobile-nav__item {
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.mobile-nav__link {
    display: block;
    padding: 1.1rem 0;
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-white);
    text-decoration: none;
    transition: color var(--transition-base);
}
.mobile-nav__link:hover {
    color: var(--color-accent);
}

.mobile-nav__link.is-active {
    color: var(--color-accent);
}

.mobile-nav__sub {
    padding: 0.25rem 0 0.75rem;
}
.mobile-nav__sub a {
    display: block;
    padding: 0.4rem 0;
    font-size: 0.95rem;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: color var(--transition-base);
}
.mobile-nav__sub a:hover {
    color: var(--color-accent);
}

.mobile-menu-cta {
    margin-top: 2rem;
    text-align: center;
}

.mobile-social {
    margin-top: 2.5rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}