/* ==========================================================================
   Header & Navigation
   ========================================================================== */

/* Utility Bar */
.utility-bar {
    background: var(--color-primary-dark);
    color: var(--color-text-inverse);
    height: var(--utility-bar-height);
    font-size: var(--font-size-xs);
    display: none;
}

@media (min-width: 768px) {
    .utility-bar {
        display: block;
    }
}

.utility-bar .container {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 100%;
    gap: var(--space-5);
}

.utility-bar__item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255, 255, 255, 0.85);
}

.utility-bar__item svg {
    width: 14px;
    height: 14px;
}

.utility-bar__item a {
    color: rgba(255, 255, 255, 0.85);
    font-weight: var(--font-weight-medium);
}

.utility-bar__item a:hover {
    color: var(--color-text-inverse);
}

/* Site Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    background: var(--color-bg);
    transition: all var(--transition-base);
}

@media (min-width: 768px) {
    .site-header {
        top: var(--utility-bar-height);
    }
}

.site-header.header--scrolled {
    top: 0;
    box-shadow: var(--shadow-header);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    transition: height var(--transition-base);
}

.header--scrolled .site-header__inner {
    height: var(--header-height-scrolled);
}

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

.site-logo img {
    height: 50px;
    width: auto;
    transition: height var(--transition-base);
}

.header--scrolled .site-logo img {
    height: 40px;
}

.site-logo__text {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-dark);
    text-decoration: none;
    line-height: var(--line-height-tight);
}

.site-logo__text span {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-light);
}

/* Desktop Navigation */
.nav-primary {
    display: none;
}

@media (min-width: 992px) {
    .nav-primary {
        display: flex;
        align-items: center;
    }
}

.nav-primary .nav__list {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: var(--space-1);
}

.nav-primary .nav__item {
    margin-bottom: 0;
}

.nav-primary .nav__link {
    display: flex;
    align-items: center;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-primary .nav__link:hover,
.nav-primary .nav__link:focus-visible {
    color: var(--color-primary);
    background: var(--color-bg-light);
}

.nav-primary .nav__item--active .nav__link {
    color: var(--color-primary);
    background: var(--color-bg-alt);
}

/* Header CTA */
.header-cta {
    display: none;
}

@media (min-width: 992px) {
    .header-cta {
        display: flex;
        align-items: center;
        margin-left: var(--space-4);
    }
}

.header-cta .btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
}

/* Hamburger Button */
.hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    z-index: calc(var(--z-overlay) + 1);
}

@media (min-width: 992px) {
    .hamburger {
        display: none;
    }
}

.hamburger__lines {
    width: 24px;
    height: 18px;
    position: relative;
}

.hamburger__line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    position: absolute;
    left: 0;
    transition: all var(--transition-base);
}

.hamburger__line:nth-child(1) { top: 0; }
.hamburger__line:nth-child(2) { top: 8px; }
.hamburger__line:nth-child(3) { top: 16px; }

.hamburger.is-active .hamburger__line:nth-child(1) {
    top: 8px;
    transform: rotate(45deg);
}

.hamburger.is-active .hamburger__line:nth-child(2) {
    opacity: 0;
}

.hamburger.is-active .hamburger__line:nth-child(3) {
    top: 8px;
    transform: rotate(-45deg);
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 360px;
    height: 100vh;
    height: 100dvh;
    background: var(--color-bg);
    z-index: var(--z-overlay);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
    padding: calc(var(--header-height) + var(--space-4)) var(--space-5) var(--space-5);
    box-shadow: var(--shadow-xl);
}

.mobile-nav.is-open {
    transform: translateX(0);
}

.mobile-nav__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-overlay) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-nav__overlay.is-visible {
    opacity: 1;
    visibility: visible;
}

.mobile-nav .nav__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav .nav__item {
    margin-bottom: 0;
}

.mobile-nav .nav__link {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.mobile-nav .nav__link:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

.mobile-nav .nav__item--active .nav__link {
    color: var(--color-primary);
    background: var(--color-bg-alt);
}

.mobile-nav__contact {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-border);
}

.mobile-nav__contact a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
}

.mobile-nav__contact svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.mobile-nav__cta {
    margin-top: var(--space-5);
}

.mobile-nav__cta .btn {
    width: 100%;
    justify-content: center;
}