/* ============================================
   HEADER STYLES - Spotify Style
   ============================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-primary);
    border-bottom: none;
    transition: all 0.3s ease;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    min-height: 60px;
}

/* ============================================
   لوگو
   ============================================ */
.site-logo {
    display: flex;
    align-items: center;
}

.site-logo .logo-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.site-logo .logo-link:hover {
    transform: scale(1.02);
}

.site-logo .logo-img {
    height: 40px;
    max-height: 40px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    transition: all 0.3s ease;
    filter: brightness(0) saturate(100%) invert(75%) sepia(48%) saturate(2476%) hue-rotate(86deg) brightness(98%) contrast(85%);
}

.site-logo .logo-text {
    font-size: 2rem;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    transition: all 0.3s ease;
}

/* Hide site description/tagline */
.site-header .site-description,
.ast-site-identity .site-description {
    display: none !important;
}

.site-logo .logo-link:hover .logo-img {
    filter: brightness(0) saturate(100%) invert(85%) sepia(58%) saturate(3476%) hue-rotate(86deg) brightness(105%) contrast(90%);
    transform: scale(1.05);
}

.site-logo .logo-link:hover .logo-text {
    color: var(--primary-color);
}

.site-logo-text {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-primary);
}

/* ============================================
   منوی اصلی
   ============================================ */
.main-navigation {
    flex: 1;
    display: flex;
    justify-content: center;
}

.main-navigation ul {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
}

.main-navigation ul li a {
    display: flex;
    align-items: center;
    padding: 0.6rem 1.2rem;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-radius: 4px;
    transition: all 0.2s ease;
    position: relative;
}

.main-navigation ul li a:hover {
    color: var(--text-primary);
}

.main-navigation ul li.current-menu-item a {
    color: var(--text-primary);
}

.main-navigation ul li a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 24px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: transform 0.2s ease;
}

.main-navigation ul li a:hover::after,
.main-navigation ul li.current-menu-item a::after {
    transform: translateX(-50%) scaleX(1);
}

/* ============================================
   اکشن‌های Header
   ============================================ */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* جستجو */
.header-search {
    position: relative;
}

.search-toggle {
    background: var(--bg-card);
    border: 1px solid transparent;
    color: var(--text-secondary);
    font-size: 1.8rem;
    cursor: pointer;
    padding: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
}

.search-toggle:hover {
    background: var(--bg-hover);
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(29, 185, 84, 0.2);
}

.search-form-popup {
    position: absolute;
    top: calc(100% + 1rem);
    left: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
    min-width: 320px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

.search-form-popup.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.search-form-popup input[type="search"] {
    width: 100%;
    padding: 1.2rem 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1.5rem;
}

.search-form-popup button {
    margin-top: 1rem;
    width: 100%;
}

/* دکمه فروشگاه */
.shop-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: #000;
    border-radius: 24px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(29, 185, 84, 0.3);
}

.shop-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 24px rgba(29, 185, 84, 0.5);
    color: #000;
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
}

.shop-button svg {
    width: 18px;
    height: 18px;
}

/* سوئیچ تم */
.theme-switch {
    position: relative;
    width: 60px;
    height: 32px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.theme-switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    transition: 0.4s;
    border-radius: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px;
}

.theme-switch-slider:before {
    content: '';
    position: absolute;
    height: 24px;
    width: 24px;
    left: 3px;
    bottom: 2px;
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: 0.4s;
    border-radius: 50%;
}

.theme-switch input:checked + .theme-switch-slider {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.theme-switch input:checked + .theme-switch-slider:before {
    transform: translateX(28px);
}

.theme-switch-icon {
    font-size: 14px;
    z-index: 1;
}

.theme-switch-icon.sun {
    color: #ffa500;
}

.theme-switch-icon.moon {
    color: #4a90e2;
}

/* دکمه منوی موبایل */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 2.4rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .main-navigation ul {
        gap: 0.5rem;
    }
    
    .main-navigation ul li a {
        padding: 1rem 1.5rem;
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
        padding: 0.8rem 0;
    }
    
    .main-navigation {
        position: fixed;
        top: 60px;
        right: -100%;
        width: 100%;
        max-width: 350px;
        height: calc(100vh - 60px);
        background: var(--bg-card);
        border-left: 1px solid var(--border-color);
        padding: 2rem;
        transition: right 0.3s ease;
        overflow-y: auto;
        z-index: 999;
    }
    
    .main-navigation.active {
        right: 0;
    }
    
    .main-navigation ul {
        flex-direction: column;
        gap: 0;
    }
    
    .main-navigation ul li {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }
    
    .main-navigation ul li a {
        width: 100%;
        padding: 1.5rem 1rem;
        border-radius: 0;
    }
    
    .mobile-menu-toggle {
        display: block;
        order: 3;
    }
    
    .site-logo {
        order: 1;
    }
    
    .header-actions {
        order: 2;
        margin-right: auto;
        margin-left: 1rem;
    }
    
    .shop-button span {
        display: none;
    }
    
    .shop-button {
        padding: 1rem;
        width: 44px;
        height: 44px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0.8rem 0;
    }
    
    .site-logo .logo-img {
        height: 32px;
        max-height: 32px;
        max-width: 150px;
    }
    
    .site-logo .logo-text {
        font-size: 1.6rem;
    }
    
    .site-logo-text {
        font-size: 1.6rem;
    }
    
    .header-actions {
        gap: 0.5rem;
    }
    
    .search-form-popup {
        min-width: 280px;
        right: 0;
        left: auto;
    }
}

/* ============================================
   Mobile Menu Overlay
   ============================================ */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 998;
}

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