.main-header {
    background: black;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 10px 0;
    transition: background 0.4s, box-shadow 0.4s, padding 0.4s, backdrop-filter 0.4s;
}

header.scrolled {
    background: rgba(4,70,61,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 40px rgba(0,0,0,0.25);
    padding: 4px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

header.scrolled .wordmark-img {
    height: 48px;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

/* ====== LOGO ====== */
.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.wordmark-img {
    height: 68px;
    width: auto;
    display: block;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

nav a {
    color: rgba(255,255,255,0.82);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    right: 0;
    height: 1.5px;
    background: var(--lagoon-aqua);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.25s ease;
}

nav a:hover {
    color: var(--white);
}

nav a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-cta {
    background: var(--grad-btn) !important;
    background-size: 200% 200% !important;
    color: var(--white) !important;
    padding: 10px 22px !important;
    border-radius: 100px !important;
    font-weight: 700 !important;
    font-size: 14px !important;
    box-shadow: 0 4px 16px rgba(201,10,87,0.4), inset 0 1px 0 rgba(255,255,255,0.2);
    transition: transform 0.25s, box-shadow 0.25s !important;
    position: relative;
    overflow: hidden;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 24px rgba(201,10,87,0.55) !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    border-radius: 2px;
    transition: 0.3s;
}