/* ============================================
   Jupiter Planet XXL - Design 4
   Light Elegant Serif — Header Styles
   ============================================ */

/* ── Top Bar ── */
.top-bar {
    background: var(--color-heading);
    color: var(--color-white);
    font-size: var(--fs-xs);
    letter-spacing: var(--ls-wider);
    text-transform: uppercase;
    padding: 8px 0;
    text-align: center;
    font-weight: var(--fw-medium);
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar__left,
.top-bar__right {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.top-bar a {
    color: rgba(255,255,255,0.7);
    transition: color var(--transition-fast);
    font-size: var(--fs-xs);
}

.top-bar a:hover {
    color: var(--color-primary-light);
}

.top-bar i {
    margin-right: 4px;
}

/* ── Header ── */
.header {
    background: var(--color-bg);
    position: sticky;
    top: 0;
    z-index: var(--z-navbar);
    transition: all var(--transition-base);
    border-bottom: 1px solid var(--color-border);
}

.header.scrolled {
    background: rgba(250, 248, 245, 0.97);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

/* ── Brand Row ── */
.header__brand-row {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg) 0;
    position: relative;
    border-bottom: 1px solid var(--color-border-light);
    transition: padding var(--transition-base);
}

.header.scrolled .header__brand-row {
    padding: var(--space-sm) 0;
}

.header__brand {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    text-decoration: none;
}

.header__brand-line {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary));
    transition: width var(--transition-base);
}

.header__brand-line--right {
    background: linear-gradient(90deg, var(--color-primary), transparent);
}

.header.scrolled .header__brand-line {
    width: 30px;
}

.header__logo-text {
    text-align: center;
}

.header__logo-title {
    font-family: var(--font-heading);
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    letter-spacing: var(--ls-widest);
    text-transform: uppercase;
    color: var(--color-heading);
    line-height: 1;
    transition: font-size var(--transition-base);
}

.header.scrolled .header__logo-title {
    font-size: var(--fs-lg);
}

.header__logo-subtitle {
    font-family: var(--font-accent);
    font-size: var(--fs-sm);
    font-style: italic;
    color: var(--color-primary);
    letter-spacing: var(--ls-wider);
    margin-top: 4px;
    transition: font-size var(--transition-base), margin var(--transition-base);
}

.header.scrolled .header__logo-subtitle {
    font-size: var(--fs-xs);
    margin-top: 2px;
}

/* ── Navigation Row ── */
.header__nav-row {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) 0;
    position: relative;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
}

.nav__link {
    font-family: var(--font-body);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--ls-widest);
    text-transform: uppercase;
    color: var(--color-heading);
    position: relative;
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--color-primary);
    transition: width var(--transition-base), left var(--transition-base);
}

.nav__link:hover {
    color: var(--color-primary);
}

.nav__link:hover::after {
    width: 100%;
    left: 0;
}

.nav__link.active {
    color: var(--color-primary);
}

.nav__link.active::after {
    width: 100%;
    left: 0;
}

/* ── Header Actions ── */
.header__actions {
    position: absolute;
    right: var(--space-xl);
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.header__action-btn {
    color: var(--color-heading);
    font-size: var(--fs-md);
    transition: color var(--transition-fast);
    position: relative;
}

.header__action-btn:hover {
    color: var(--color-primary);
}

.header__action-btn .badge {
    position: absolute;
    top: -6px;
    right: -8px;
    width: 16px;
    height: 16px;
    border-radius: var(--radius-circle);
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 9px;
    font-weight: var(--fw-bold);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ── Hamburger ── */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    z-index: var(--z-modal);
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
}

.hamburger__line {
    width: 24px;
    height: 1.5px;
    background: var(--color-heading);
    transition: all var(--transition-base);
    transform-origin: center;
}

.hamburger.active .hamburger__line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 5px);
}

.hamburger.active .hamburger__line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger__line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -5px);
}

/* ── Mobile Navigation ── */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-bg);
    z-index: var(--z-overlay);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.mobile-nav.active {
    display: flex;
    opacity: 1;
    pointer-events: all;
}

.mobile-nav__link {
    font-family: var(--font-heading);
    font-size: var(--fs-2xl);
    font-weight: var(--fw-medium);
    letter-spacing: var(--ls-wider);
    text-transform: uppercase;
    color: var(--color-heading);
    transition: color var(--transition-fast);
}

.mobile-nav__link:hover {
    color: var(--color-primary);
}

.mobile-nav__close {
    position: absolute;
    top: var(--space-xl);
    right: var(--space-xl);
    font-size: var(--fs-xl);
    color: var(--color-heading);
    cursor: pointer;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .nav {
        gap: var(--space-lg);
    }

    .nav__link {
        font-size: 0.7rem;
    }
}

@media (max-width: 768px) {
    .top-bar .container {
        flex-direction: column;
        gap: 4px;
    }

    .top-bar__right {
        display: none;
    }

    .header__brand-line {
        width: 30px;
    }

    .header__logo-title {
        font-size: var(--fs-lg);
    }

    .header__logo-subtitle {
        font-size: var(--fs-xs);
    }

    .header__nav-row .nav {
        display: none;
    }

    .header__actions {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .header__nav-row {
        padding: var(--space-md) 0;
    }
}