/* =============================================
   ShipMint — Navigation
   ============================================= */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 40px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.nav.scrolled {
    background: rgba(10, 22, 40, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    flex-shrink: 0;
}

.nav-logo img {
    height: 32px;
    width: auto;
}

/* Nav links */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link .material-symbols-outlined {
    font-size: 18px;
    transition: transform var(--transition-fast);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown:hover .nav-link .material-symbols-outlined {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--navy-card);
    border: 1px solid var(--navy-border);
    border-radius: var(--radius);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: var(--transition);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
    margin-top: 4px;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown-item {
    display: block;
    padding: 10px 14px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.nav-dropdown-item:hover {
    color: var(--white);
    background: rgba(30, 144, 255, 0.08);
}

/* Nav CTA */
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    background: var(--blue);
    color: var(--white) !important;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition);
    margin-left: 8px;
}

.nav-cta:hover {
    background: var(--blue-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px var(--blue-glow);
}

.nav-cta .material-symbols-outlined {
    font-size: 18px;
}

/* Mobile hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
@media (max-width: 1024px) {
    .nav {
        padding: 0 20px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--navy-surface);
        border-left: 1px solid var(--navy-border);
        flex-direction: column;
        align-items: stretch;
        padding: 80px 24px 40px;
        gap: 4px;
        transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
    }

    .nav-menu.open {
        right: 0;
    }

    .nav-link {
        padding: 12px 16px;
        font-size: 16px;
    }

    .nav-dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: transparent;
        margin-top: 0;
        padding: 0 0 0 16px;
    }

    .nav-cta {
        margin: 16px 0 0 0;
        justify-content: center;
        padding: 14px 24px;
        font-size: 16px;
    }

    /* Overlay */
    .nav-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }

    .nav-overlay.active {
        opacity: 1;
        visibility: visible;
    }
}