/* ========== HEADER / NAVBAR ========== */
header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(20px);
    background: linear-gradient(to bottom,
            rgba(2, 6, 23, 0.92),
            rgba(2, 6, 23, 0.75),
            transparent);
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 0;
    gap: 1.5rem;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.logo-mark {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: radial-gradient(circle at 30% 0%, #bbf7d0 0, #00dc5a 40%, #22c55e 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 25px rgba(0, 220, 90, 0.5);
    position: relative;
    overflow: hidden;
}

.logo-mark::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 10% -20%, rgba(248, 250, 252, 0.7) 0, transparent 45%);
    mix-blend-mode: screen;
}

.logo-mark span {
    font-size: 18px;
    font-weight: 800;
    color: #020617;
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.logo-title {
    font-weight: 600;
    letter-spacing: 0.02em;
    font-size: 1.1rem;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--muted);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    font-size: 0.9rem;
    font-weight: 400;
}

.nav-link {
    position: relative;
    padding-bottom: 0.15rem;
    color: var(--muted);
    cursor: pointer;
    transition: color 0.2s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.2rem;
    width: 0;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, #22c55e, #a3e635);
    transition: width 0.2s ease;
}

.nav-link:hover {
    color: var(--text);
}

.nav-link.active {
    color: #e5e7eb;
    font-weight: 500;
}

.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pill-badge {
    font-size: 0.7rem;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.4);
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.pill-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--primary);
    box-shadow: 0 0 10px rgba(0, 220, 90, 0.8);
}

/* Burger (mobile) */
.burger {
    display: none;
    width: 32px;
    height: 32px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.5);
    background: rgba(15, 23, 42, 0.8);
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.burger span,
.burger span::before,
.burger span::after {
    display: block;
    width: 16px;
    height: 2px;
    border-radius: 999px;
    background: #e5e7eb;
    position: relative;
    transition: all 0.18s ease;
}

.burger span::before,
.burger span::after {
    content: "";
    position: absolute;
    left: 0;
}

.burger span::before {
    top: -5px;
}

.burger span::after {
    top: 5px;
}

.burger.open span {
    background: transparent;
}

.burger.open span::before {
    top: 0;
    transform: rotate(45deg);
}

.burger.open span::after {
    top: 0;
    transform: rotate(-45deg);
}

@media (max-width: 840px) {
    .nav-menu {
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        padding: 0.75rem 1.5rem 1rem;
        background: radial-gradient(circle at top, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.95));
        border-bottom: 1px solid rgba(148, 163, 184, 0.3);
        display: none;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    .burger {
        display: inline-flex;
    }

    .nav {
        padding-inline: 0;
    }
}