/* Header & Navigation */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.96);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.03);
    z-index: 1000;
    transition: var(--transition-smooth);
    backdrop-filter: blur(8px);
}

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

.logo { display: flex; flex-direction: column; line-height: 1.1; }
.logo-bold { font-family: var(--font-heading); font-weight: 800; font-size: 1.6rem; color: var(--color-navy); }
.logo-light { font-family: var(--font-heading); font-weight: 500; color: var(--color-wood-primary); }
.logo-sub { font-size: 0.6rem; letter-spacing: 2.2px; font-weight: 700; color: var(--color-graphite); }

.nav-menu { display: flex; align-items: center; gap: 32px; }

.nav-link { font-size: 0.95rem; font-weight: 500; color: var(--color-graphite-dark); }
.nav-link:hover { color: var(--color-accent-blue); }

.nav-cta { padding: 10px 20px; font-size: 0.85rem; }

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.menu-toggle .bar { width: 100%; height: 2px; background-color: var(--color-navy); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1); }

@media (max-width: 768px) {
    .menu-toggle { display: flex; }
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--color-white);
        flex-direction: column;
        padding: 40px 24px;
        gap: 24px;
        transition: var(--transition-smooth);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        align-items: stretch;
        text-align: center;
    }
    .nav-menu.active { left: 0; }
    .nav-cta { width: 100%; }
    .menu-toggle.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .menu-toggle.active .bar:nth-child(2) { opacity: 0; transition-delay: 0s; }
    .menu-toggle.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}