/* ========================================================================
   PREMIUM HEADER & NAVIGATION - 2025 DESIGN
   Sleek modern header with improved typography and spacing
   ======================================================================== */

/* ========================================================================
   HEADER CONTAINER
   ======================================================================== */

.header-premium {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: white;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    transition: all var(--transition-base);
}

.header-premium.scrolled {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-2) var(--spacing-4);
}

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

/* ========================================================================
   LOGO SECTION
   ======================================================================== */

.logo-premium {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    text-decoration: none;
    transition: all var(--transition-base);
}

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

.logo-image-premium {
    height: 48px;
    width: auto;
    object-fit: contain;
}

.logo-elegant {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.logo-circle {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-secondary-500) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.logo-letter {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: white;
}

.logo-elegant-text {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
}

/* ========================================================================
   NAVIGATION
   ======================================================================== */

.nav-premium {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.nav-link-premium {
    position: relative;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.nav-link-premium::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary-500) 0%, var(--color-secondary-500) 100%);
    border-radius: var(--radius-full);
    transition: transform var(--transition-base);
}

.nav-link-premium:hover {
    color: var(--color-primary-600);
    background: var(--color-primary-50);
}

.nav-link-premium:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-link-premium.active {
    color: var(--color-primary-700);
    background: var(--color-primary-100);
}

.nav-link-premium.active::after {
    transform: translateX(-50%) scaleX(1);
}

/* ========================================================================
   HEADER ACTIONS
   ======================================================================== */

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

/* Search Button */
.search-btn-premium {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--color-gray-50);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    color: var(--color-gray-600);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all var(--transition-base);
}

.search-btn-premium:hover {
    background: var(--color-primary-50);
    border-color: var(--color-primary-300);
    color: var(--color-primary-700);
}

/* Language Selector */
.language-selector-premium {
    position: relative;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-1) / 2);
    padding: var(--spacing-2);
    background: var(--color-gray-50);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    color: var(--color-gray-700);
    cursor: pointer;
    transition: all var(--transition-base);
}

.language-btn:hover {
    background: var(--color-primary-50);
    border-color: var(--color-primary-300);
    color: var(--color-primary-700);
}

.language-flag {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

/* Profile Button */
.profile-btn-premium {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-gray-200);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-base);
}

.profile-btn-premium:hover {
    border-color: var(--color-primary-400);
    box-shadow: 0 0 0 4px var(--color-primary-100);
}

.profile-btn-premium img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ========================================================================
   MOBILE MENU TOGGLE
   ======================================================================== */

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 32px;
    height: 32px;
    padding: 6px;
    background: var(--color-gray-50);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.mobile-menu-toggle:hover {
    background: var(--color-primary-50);
    border-color: var(--color-primary-300);
}

.mobile-menu-toggle span {
    height: 2px;
    background: var(--color-gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================================================
   HERO SECTION WITH SEARCH
   ======================================================================== */

.hero-search-premium {
    background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-secondary-600) 100%);
    padding: var(--spacing-6) var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.hero-search-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: white;
    margin-bottom: var(--spacing-2);
    line-height: var(--leading-tight);
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-4);
}

.hero-search-bar {
    display: flex;
    gap: var(--spacing-2);
    max-width: 700px;
    margin: 0 auto;
}

.hero-search-input {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--text-lg);
    background: white;
    border: none;
    border-radius: var(--radius-md);
    outline: none;
}

.hero-search-btn {
    padding: var(--spacing-3) var(--spacing-5);
    background: var(--color-accent-500);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.hero-search-btn:hover {
    background: var(--color-accent-600);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* ========================================================================
   BREADCRUMB
   ======================================================================== */

.breadcrumb-premium {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    color: var(--color-gray-600);
    font-size: var(--text-sm);
    text-decoration: none;
    transition: color var(--transition-base);
}

.breadcrumb-item:hover {
    color: var(--color-primary-600);
}

.breadcrumb-item.active {
    color: var(--color-gray-900);
    font-weight: var(--font-medium);
}

.breadcrumb-separator {
    color: var(--color-gray-400);
    font-size: var(--text-xs);
}

/* ========================================================================
   RESPONSIVE DESIGN
   ======================================================================== */

@media (max-width: 1024px) {
    .nav-premium {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: var(--spacing-2) var(--spacing-3);
    }

    .logo-image-premium,
    .logo-circle {
        height: 40px;
        width: 40px;
    }

    .logo-elegant-text {
        font-size: var(--text-lg);
    }

    .hero-search-premium {
        padding: var(--spacing-4) var(--spacing-3);
    }

    .hero-title {
        font-size: var(--text-3xl);
    }

    .hero-subtitle {
        font-size: var(--text-base);
    }

    .hero-search-bar {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .header-actions {
        gap: var(--spacing-1);
    }

    .search-btn-premium span {
        display: none;
    }

    .language-selector-premium {
        display: none;
    }

    .hero-title {
        font-size: var(--text-2xl);
    }
}