/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
    background: var(--color-white);
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

/* Logo */
.header-logo img { height: 65px; width: auto; }
.header-logo .logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
    transition: color var(--transition);
}
.site-header.scrolled .logo-text { color: var(--color-dark); }
.site-header.scrolled .header-logo img { height: 55px; }

/* Desktop Nav */
.header-nav { display: flex; align-items: center; gap: 0.25rem; }
.header-nav > ul { display: flex; align-items: center; gap: 0; list-style: none; margin: 0; padding: 0; }
.header-nav > ul > li { position: relative; }
.header-nav > ul > li > a {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-white);
    transition: color var(--transition);
    padding: 0.5rem 0.85rem;
    text-decoration: none;
    position: relative;
}

/* Underline effect */
.header-nav > ul > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0.85rem;
    right: 0.85rem;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform var(--transition);
}
.header-nav > ul > li > a:hover::after,
.header-nav > ul > li.current-menu-item > a::after,
.header-nav > ul > li.current-menu-parent > a::after { transform: scaleX(1); }

/* Scrolled state */
.site-header.scrolled .header-nav > ul > li > a { color: var(--color-text); }
.site-header.scrolled .header-nav > ul > li > a:hover,
.site-header.scrolled .header-nav > ul > li.current-menu-item > a,
.site-header.scrolled .header-nav > ul > li.current-menu-parent > a { color: var(--color-primary); }

/* Dropdown arrow */
.nav-arrow {
    font-size: 0.55rem;
    transition: transform 0.3s ease;
    margin-left: 0.1rem;
}
.header-nav > ul > li:hover > a .nav-arrow { transform: rotate(180deg); }

/* Dropdown */
.header-nav > ul > li > .sub-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 240px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
    padding: 0.5rem;
    list-style: none;
    margin: 0;
    z-index: 100;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
}
.header-nav > ul > li:hover > .sub-menu {
    display: block;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* Invisible bridge between parent and dropdown */
.header-nav > ul > li > .sub-menu::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 0;
    right: 0;
    height: 12px;
}

.header-nav > ul > li > .sub-menu > li > a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius);
    transition: all 0.2s ease;
}
.header-nav > ul > li > .sub-menu > li > a:hover {
    background: var(--color-light);
    color: var(--color-primary);
    padding-left: 1.25rem;
}

/* Header CTA */
.header-cta { margin-left: 0.75rem; }
.header-cta .btn { padding: 0.6rem 1.5rem; font-size: 0.85rem; }


/* ==========================================================================
   Mobile Toggle (Hamburger → X)
   ========================================================================== */

.header-toggle {
    display: none;
    width: 40px;
    height: 40px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    z-index: 1001;
}
.header-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: all 0.3s ease;
    display: block;
}
.site-header.scrolled .header-toggle span { background: var(--color-dark); }

/* Hamburger → X animation */
.header-toggle.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); background: var(--color-primary); }
.header-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.header-toggle.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); background: var(--color-primary); }


/* ==========================================================================
   Mobile Menu (Fullscreen Overlay)
   ========================================================================== */

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: var(--color-primary);
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
.mobile-menu.open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__inner {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 0 1.5rem;
}

/* Mobile header */
.mobile-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.mobile-menu__logo img { height: 50px; }
.mobile-menu__logo span { font-size: 1.1rem; font-weight: 700; color: var(--color-white); text-decoration: none; }

.mobile-menu__close {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    border: none;
    color: var(--color-white);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}
.mobile-menu__close:hover { background: rgba(255,255,255,0.2); }

/* Mobile nav list */
.mobile-menu__nav { flex: 1; padding: 1.5rem 0; }
.mobile-menu__list { list-style: none; margin: 0; padding: 0; }

.mobile-menu__list > li {
    border-bottom: 1px solid rgba(255,255,255,0.08);
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.mobile-menu.open .mobile-menu__list > li {
    opacity: 1;
    transform: translateX(0);
}
/* Staggered animation */
.mobile-menu.open .mobile-menu__list > li:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu.open .mobile-menu__list > li:nth-child(2) { transition-delay: 0.1s; }
.mobile-menu.open .mobile-menu__list > li:nth-child(3) { transition-delay: 0.15s; }
.mobile-menu.open .mobile-menu__list > li:nth-child(4) { transition-delay: 0.2s; }
.mobile-menu.open .mobile-menu__list > li:nth-child(5) { transition-delay: 0.25s; }
.mobile-menu.open .mobile-menu__list > li:nth-child(6) { transition-delay: 0.3s; }
.mobile-menu.open .mobile-menu__list > li:nth-child(7) { transition-delay: 0.35s; }

.mobile-menu__list > li > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-white);
    text-decoration: none;
    transition: color 0.3s ease;
}
.mobile-menu__list > li > a:hover { color: var(--color-secondary); }
.mobile-menu__list > li.current-menu-item > a { color: var(--color-secondary); }

/* Submenu toggle */
.mobile-menu__list > li.menu-item-has-children > a::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.7rem;
    color: rgba(255,255,255,0.4);
    transition: transform 0.3s ease, color 0.3s ease;
}
.mobile-menu__list > li.menu-item-has-children.sub-open > a::after {
    transform: rotate(180deg);
    color: var(--color-secondary);
}

/* Mobile submenu */
.mobile-menu__list > li > .sub-menu {
    list-style: none;
    margin: 0;
    padding: 0 0 0.75rem 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.mobile-menu__list > li.sub-open > .sub-menu {
    max-height: 500px;
}

.mobile-menu__list > li > .sub-menu > li > a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 0 0.6rem 1rem;
    font-size: 1rem;
    font-weight: 500;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.2s ease, padding 0.2s ease;
    border-left: 2px solid rgba(255,255,255,0.1);
}
.mobile-menu__list > li > .sub-menu > li > a:hover {
    color: var(--color-secondary);
    padding-left: 1.5rem;
    border-left-color: var(--color-secondary);
}

/* Mobile CTA */
.mobile-menu__cta {
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.mobile-menu__btn {
    width: 100%;
    justify-content: center;
    background: var(--color-secondary);
    color: var(--color-dark);
    border-color: var(--color-secondary);
    font-size: 1rem;
}
.mobile-menu__btn:hover {
    background: #fff;
    color: var(--color-primary);
    border-color: #fff;
}

/* Mobile contact */
.mobile-menu__contact {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-bottom: 2rem;
}
.mobile-menu__contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    text-decoration: none;
    transition: background 0.3s ease;
}
.mobile-menu__contact-item:hover { background: rgba(255,255,255,0.12); }
.mobile-menu__contact-item i { color: var(--color-secondary); font-size: 0.9rem; width: 20px; text-align: center; }
.mobile-menu__contact-item span { color: var(--color-white); font-size: 0.9rem; font-weight: 600; }


/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
    .header-toggle { display: flex; }
    .header-nav { display: none; }
}