/* ── Navigation ───────────────────────────────────────────── */
nav {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    background: rgba(255, 255, 255, .96);
}
.nav-wrapper{
    max-width: 1250px;
    margin: auto;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}
.nav-logo {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--brown-dark);
    letter-spacing: -.4px;
}

.nav-logo span {
    color: var(--brown-light);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.8rem;
}

.nav-links a {
    font-size: .88rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 4px 0;
    border-bottom: 2px solid transparent;
    transition: var(--ease);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--brown-dark);
    border-bottom-color: var(--brown-light);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--brown-dark);
    border-radius: 2px;
    transition: var(--ease);
}

.hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
}

.hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    z-index: 999;
    background: var(--white);
    border-bottom: 1px solid var(--grey-100);
    box-shadow: var(--shadow-md);
    padding: .8rem 5% 1rem;
}

.mobile-menu.open {
    display: block;
}

.mobile-menu ul {
    list-style: none;
}

.mobile-menu a {
    display: block;
    padding: .65rem 0;
    font-size: .97rem;
    font-weight: 500;
    color: var(--text-muted);
    border-bottom: 1px solid var(--grey-50);
    transition: var(--ease);
}

.mobile-menu a:hover,
.mobile-menu a.active {
    color: var(--brown-dark);
    padding-left: 6px;
}

/* ── Page Sections (SPA) ──────────────────────────────────── */
.section {
    display: none;
    min-height: 100vh;
    padding-top: 64px;
}

.section.active {
    display: block;
    animation: fadeUp .4s ease forwards;
}