/* ============================================
   JUPITER PLANET XXL — Neon Cyberpunk Theme
   Design 3: header.css
   ============================================ */

/* ── Navbar ── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: var(--z-fixed);
    display: flex;
    align-items: center;
    transition: background var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
    background: rgba(5, 5, 8, 0.6);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.navbar.scrolled {
    background: rgba(5, 5, 8, 0.92);
    border-bottom-color: rgba(255, 45, 117, 0.15);
    box-shadow: 0 2px 30px rgba(255, 45, 117, 0.1), 0 0 60px rgba(0, 0, 0, 0.5);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* ── Brand / Logo ── */
.navbar__brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    z-index: var(--z-fixed);
}

.navbar__logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-neon);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-lg);
    color: #fff;
    box-shadow: 0 0 15px var(--neon-pink-glow);
    flex-shrink: 0;
}

.navbar__logo-text {
    font-family: var(--font-heading);
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    color: var(--text-primary);
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.2);
    line-height: 1;
}

.navbar__logo-text span {
    display: block;
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    letter-spacing: var(--ls-widest);
    color: var(--neon-cyan);
    text-shadow: var(--glow-text-cyan);
    margin-top: 2px;
}

/* ── Glitch effect on brand text ── */
.glitch-brand {
    position: relative;
    animation: glitch-brand-flicker 4s infinite;
}

@keyframes glitch-brand-flicker {
    0%, 93%, 95%, 97%, 100% { opacity: 1; }
    94% { opacity: 0.8; }
    96% { opacity: 0.9; }
}

/* ── Nav Links ── */
.navbar__menu {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.navbar__link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-heading);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast), text-shadow var(--transition-fast);
    border-radius: var(--radius-sm);
}

.navbar__link i {
    font-size: 0.7rem;
    opacity: 0.5;
}

.navbar__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--neon-pink);
    box-shadow: 0 0 8px var(--neon-pink-glow);
    transition: width var(--transition-base);
    border-radius: var(--radius-full);
}

.navbar__link:hover,
.navbar__link.active {
    color: var(--neon-pink);
    text-shadow: var(--glow-text-pink);
}

.navbar__link:hover::after,
.navbar__link.active::after {
    width: 60%;
}

/* ── Nav Actions (cart, etc.) ── */
.navbar__actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.navbar__cart {
    position: relative;
    color: var(--text-body);
    font-size: var(--fs-lg);
    transition: color var(--transition-fast), text-shadow var(--transition-fast);
    text-decoration: none;
}

.navbar__cart:hover {
    color: var(--neon-cyan);
    text-shadow: var(--glow-text-cyan);
}

.navbar__cart-badge {
    position: absolute;
    top: -6px;
    right: -10px;
    width: 18px;
    height: 18px;
    background: var(--neon-pink);
    color: #fff;
    font-size: 0.65rem;
    font-weight: var(--fw-bold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 8px var(--neon-pink-glow);
}

.navbar__cta {
    padding: 0.55rem 1.25rem;
    font-size: var(--fs-xs);
}

/* ── Hamburger ── */
.navbar__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    cursor: pointer;
    z-index: var(--z-fixed);
    gap: 5px;
}

.navbar__hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
    border-radius: var(--radius-full);
    box-shadow: 0 0 4px rgba(255, 255, 255, 0.2);
}

.navbar__hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
    background: var(--neon-pink);
    box-shadow: 0 0 8px var(--neon-pink-glow);
}

.navbar__hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.navbar__hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    background: var(--neon-cyan);
    box-shadow: 0 0 8px var(--neon-cyan-glow);
}

/* ── Mobile ── */
@media (max-width: 992px) {
    .navbar__hamburger {
        display: flex;
    }

    .navbar__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: var(--space-sm);
        padding: var(--space-3xl) var(--space-xl);
        background: rgba(5, 5, 8, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-left: 1px solid rgba(255, 45, 117, 0.15);
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
        transition: right var(--transition-base);
        z-index: calc(var(--z-fixed) - 1);
    }

    .navbar__menu.open {
        right: 0;
    }

    .navbar__link {
        font-size: var(--fs-md);
        padding: var(--space-md) 0;
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }

    .navbar__link::after {
        bottom: -1px;
        left: 0;
        transform: none;
    }

    .navbar__link:hover::after,
    .navbar__link.active::after {
        width: 40px;
    }

    .navbar__actions {
        gap: var(--space-sm);
    }

    .navbar__cta {
        display: none;
    }
}

@media (max-width: 480px) {
    .navbar__logo-text {
        font-size: var(--fs-base);
    }

    .navbar__logo-text span {
        font-size: 0.6rem;
    }

    .navbar__logo-icon {
        width: 34px;
        height: 34px;
        font-size: var(--fs-base);
    }
}

/* ── Mobile Menu Overlay ── */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: calc(var(--z-fixed) - 2);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

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