/* ===================================
   Arkitekt — Header
   Minimal, transparent-feel nav that
   lets the hero breathe
   =================================== */

.site-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.25rem 1.5rem;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--color-text);
    z-index: 110;
}

.header-logo-text {
    font-family: var(--font-heading), serif;
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.header-logo-img {
    max-height: 36px;
    width: auto;
}

/* Nav — hidden on mobile */
.nav-menu {
    display: none;
}

.nav-list {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    font-family: var(--font-body), sans-serif;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text_muted);
    text-decoration: none;
    transition: color 0.2s ease;
    padding: 0.5rem 0;
}

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

/* Header CTA — hidden on mobile */
.header-cta {
    display: none;
    font-family: var(--font-body), sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    text-decoration: none;
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--color-accent);
    transition: all 0.2s ease;
}

.header-cta:hover {
    background-color: var(--color-accent);
    color: var(--color-on-dark);
}

/* Mobile toggle — two lines, not three (architectural) */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    min-width: 44px;
    min-height: 44px;
    z-index: 110;
}

.nav-toggle-bar {
    display: block;
    width: 24px;
    height: 1.5px;
    background-color: var(--color-text);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child {
    transform: translateY(3.75px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child {
    transform: translateY(-3.75px) rotate(-45deg);
}

/* Mobile menu overlay */
.nav-menu.nav-open {
    display: flex;
    position: fixed;
    inset: 0;
    background-color: var(--color-background);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem 2rem 2rem 2.5rem;
    z-index: 105;
}

.nav-menu.nav-open .nav-list {
    flex-direction: column;
    gap: 0;
    align-items: flex-start;
}

.nav-menu.nav-open .nav-link {
    font-family: var(--font-heading), serif;
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 600;
    letter-spacing: -0.01em;
    text-transform: none;
    color: var(--color-text);
    padding: 0.4rem 0;
    display: block;
}

.nav-menu.nav-open .nav-link:hover {
    color: var(--color-accent);
}

/* Desktop */
@media (min-width: 1024px) {
    .site-header {
        padding: 1.5rem 3rem;
    }

    .nav-toggle {
        display: none;
    }

    .nav-menu {
        display: flex;
        align-items: center;
    }

    .header-cta {
        display: inline-block;
        margin-left: 2.5rem;
    }
}

@media (min-width: 1280px) {
    .site-header {
        padding: 2rem 4rem;
    }
}