/* =========================================================
   HEADER & NAV
   ========================================================= */

.header {
    background: var(--white);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.96);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.logo span {
    color: var(--secondary);
}
.logo-icon {
    font-size: 32px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}
.nav a {
    font-weight: 500;
    color: var(--text);
    transition: var(--transition);
    position: relative;
    font-size: 15px;
}
.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: var(--transition);
}
.nav a:hover {
    color: var(--primary);
}
.nav a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 8px;
}
.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
    transition: var(--transition);
}
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.nav-overlay {
    display: none;
}