/* ============================================
   HEADER & NAVIGATION — v2 Minimal
   ============================================ */

.header {
    background-color: rgba(9, 9, 11, 0.85);
    border-bottom: 1px solid var(--border-subtle);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
}

[data-theme="light"] .header {
    background-color: rgba(255, 255, 255, 0.85);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    gap: var(--space-4);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.mobile-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background: var(--bg-secondary);
    border-color: var(--border-hover);
}

.mobile-menu-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.mobile-menu-close:hover {
    background: var(--bg-secondary);
    border-color: var(--border-hover);
}

body.mobile-nav-open {
    overflow: hidden;
}

.mobile-navigation {
    display: none;
}

.mobile-nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
    z-index: 150;
    visibility: hidden;
}

body.mobile-nav-open .mobile-nav-backdrop {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

/* Logo */
.logo h1 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    text-transform: lowercase;
    margin: 0;
}

/* Navigation */
.navigation ul {
    display: flex;
    list-style: none;
    gap: var(--space-6);
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
    cursor: pointer;
    position: relative;
    letter-spacing: 0.02em;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent-color);
    transition: width var(--transition-base);
    border-radius: 1px;
}

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

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

/* Header Actions */
.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.cabinet-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    background: transparent;
    color: var(--text-muted);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 1px solid var(--border-color);
    font-size: 1rem;
    padding: 0 10px;
    white-space: nowrap;
    gap: var(--space-2);
}

.cabinet-link__name {
    display: none;
    font-weight: 500;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    margin-left: 6px;
}

.cabinet-link.has-name {
    width: auto;
    padding: 0 12px;
}

.cabinet-link.has-name .cabinet-link__name {
    display: inline;
}

.install-pwa-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    color: var(--text-muted);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    border: 1px solid var(--border-color);
    font-size: 1rem;
    cursor: pointer;
    padding: 0;
}

.install-pwa-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.install-pwa-btn.hidden {
    display: none;
}

.cabinet-link:hover,
.cabinet-link.active {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

/* Search */
.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.search-input {
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 7px 14px 7px 34px;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    width: 220px;
    transition: all var(--transition-fast);
    font-weight: 400;
    font-family: inherit;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-color);
    background-color: var(--bg-secondary);
    box-shadow: 0 0 0 3px var(--accent-color-subtle);
}

.search-input::placeholder {
    color: var(--text-muted);
}

/* Theme Toggle */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    padding: 0;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border-color: var(--border-hover);
}

/* Cart Button */
.cart-button {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    padding: 7px 14px;
    font-weight: 500;
    font-size: var(--font-size-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-fast);
    height: 36px;
    font-family: inherit;
}

.cart-button i {
    font-size: 1.05rem;
}

.cart-button:hover {
    background-color: var(--accent-color-hover);
}

.cart-button:active {
    transform: scale(0.97);
}

.cart-count {
    background-color: rgba(255, 255, 255, 0.2);
    color: #fff;
    border-radius: var(--radius-full);
    padding: 0 5px;
    font-size: 0.7rem;
    font-weight: 600;
    min-width: 18px;
    height: 18px;
    line-height: 18px;
    text-align: center;
    display: inline-block;
}