:root {
    --primary-hue: 220;
    --primary: hsl(var(--primary-hue), 90%, 56%);
    --primary-dark: hsl(var(--primary-hue), 90%, 46%);
    --primary-light: hsl(var(--primary-hue), 90%, 96%);
    
    --secondary: #6366f1;
    --accent: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    
    --header-height: 72px;
    --container-max: 1400px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --gradient-5: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.dark-mode {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --border-color: #334155;
    --primary-light: hsl(var(--primary-hue), 90%, 15%);
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

@keyframes headerGradientShift {
    0% {
        background-position: 0% 50%;
    }
    25% {
        background-position: 50% 100%;
    }
    50% {
        background-position: 100% 50%;
    }
    75% {
        background-position: 50% 0%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes headerGlow {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4), 0 0 40px rgba(118, 75, 162, 0.2);
    }
    25% {
        box-shadow: 0 4px 20px rgba(240, 147, 251, 0.4), 0 0 40px rgba(245, 87, 108, 0.2);
    }
    50% {
        box-shadow: 0 4px 20px rgba(79, 172, 254, 0.4), 0 0 40px rgba(0, 242, 254, 0.2);
    }
    75% {
        box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4), 0 0 40px rgba(99, 102, 241, 0.2);
    }
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: linear-gradient(
        135deg,
        #667eea 0%,
        #764ba2 15%,
        #f093fb 30%,
        #f5576c 45%,
        #4facfe 60%,
        #00f2fe 75%,
        #43e97b 90%,
        #667eea 100%
    );
    background-size: 400% 400%;
    animation: headerGradientShift 12s ease-in-out infinite, headerGlow 8s ease-in-out infinite;
    border-bottom: none;
    z-index: 1000;
    transition: var(--transition);
    overflow: visible;
}

.main-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.15) 50%,
        transparent 100%
    );
    animation: shimmer 4s ease-in-out infinite;
    pointer-events: none;
}

.main-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        rgba(255,255,255,0) 0%,
        rgba(255,255,255,0.8) 50%,
        rgba(255,255,255,0) 100%
    );
    animation: shimmer 3s ease-in-out infinite reverse;
}

.main-header .nav-link,
.main-header .logo-text,
.main-header .logo-icon,
.main-header .search-toggle,
.main-header .theme-toggle,
.main-header .dropdown-arrow {
    color: white !important;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.main-header .nav-link:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    transform: translateY(-1px);
}

.main-header .nav-link.active {
    background: rgba(255, 255, 255, 0.25) !important;
    color: white !important;
    font-weight: 600;
}

.main-header .hamburger-line {
    background: white !important;
}

.main-header.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.main-header.gradient-active {
    background: linear-gradient(90deg, 
        hsl(var(--primary-hue), 80%, 60%),
        hsl(calc(var(--primary-hue) + 40), 80%, 60%)
    );
    border-bottom-color: transparent;
}

.main-header.gradient-active .nav-link,
.main-header.gradient-active .logo-text,
.main-header.gradient-active .logo-icon {
    color: white;
}

.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.header-left {
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.5rem;
    transition: var(--transition);
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--primary);
    transition: var(--transition);
}

.logo-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

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

.nav-icon svg {
    width: 18px;
    height: 18px;
}

.dropdown-arrow {
    width: 14px;
    height: 14px;
    margin-left: 4px;
    transition: transform 0.3s ease;
}

.nav-item.has-dropdown:hover .dropdown-arrow,
.nav-item.has-dropdown.open .dropdown-arrow {
    transform: rotate(180deg);
}

.nav-item.has-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 20px;
    min-width: 200px;
    z-index: 9999;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease, visibility 0.3s ease;
}

.nav-item.has-dropdown:hover .dropdown-menu,
.nav-item.has-dropdown.open .dropdown-menu {
    max-height: 600px;
    opacity: 1;
    visibility: visible;
}

.mega-menu {
    min-width: 600px;
    padding: 24px;
}

.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.mega-menu-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.mega-menu-list {
    list-style: none;
}

.mega-menu-list li {
    margin-bottom: 8px;
}

.mega-menu-list a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

.mega-menu-list a:hover {
    color: var(--primary);
}

.mega-menu-footer {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.view-all-link {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.language-selector {
    position: relative;
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    color: white;
}

.language-toggle:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
}

.language-toggle svg {
    width: 18px;
    height: 18px;
}

.current-lang {
    font-size: 0.85rem;
    font-weight: 600;
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 280px;
    max-height: 400px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 10000;
    overflow: hidden;
}

.language-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-search {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

.language-search input {
    width: 100%;
    padding: 10px 14px;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    outline: none;
    transition: var(--transition);
}

.language-search input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.language-list {
    max-height: 320px;
    overflow-y: auto;
    padding: 8px;
}

.language-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    text-decoration: none;
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.language-option:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.language-option.active {
    background: var(--primary-light);
    color: var(--primary);
}

.language-option.hidden {
    display: none;
}

.lang-code {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--bg-tertiary);
    border-radius: 4px;
    color: var(--text-muted);
}

.language-option.active .lang-code {
    background: var(--primary);
    color: white;
}

.lang-name {
    font-size: 0.9rem;
    font-weight: 500;
}

.search-toggle,
.theme-toggle {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.search-toggle:hover,
.theme-toggle:hover {
    background: var(--primary-light);
    border-color: var(--primary);
}

.search-toggle svg,
.theme-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
}

.theme-toggle .moon-icon {
    display: none;
}

.dark-mode .theme-toggle .sun-icon {
    display: none;
}

.dark-mode .theme-toggle .moon-icon {
    display: block;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 120px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.search-container {
    width: 100%;
    max-width: 700px;
    padding: 0 24px;
    position: relative;
}

.search-form {
    display: flex;
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.search-input {
    flex: 1;
    padding: 20px 24px;
    font-size: 1.25rem;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-primary);
}

.search-submit {
    padding: 20px 24px;
    background: var(--primary);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.search-submit:hover {
    background: var(--primary-dark);
}

.search-submit svg {
    width: 24px;
    height: 24px;
    color: white;
}

.search-close {
    position: absolute;
    top: -60px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-close svg {
    width: 24px;
    height: 24px;
    color: white;
}

.main-content {
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.main-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-top {
    padding: 64px 0;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    width: 36px;
    height: 36px;
    color: var(--primary);
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.footer-about-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: white;
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-badges {
    display: flex;
    gap: 16px;
}

.badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.badge svg {
    color: var(--success);
}

.hero-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.hero-search {
    max-width: 600px;
    margin: 0 auto;
}

.hero-search-form {
    display: flex;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    transition: var(--transition);
}

.hero-search-form:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light);
}

.hero-search-input {
    flex: 1;
    padding: 18px 24px;
    font-size: 1.1rem;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-primary);
}

.hero-search-btn {
    padding: 18px 32px;
    background: var(--primary);
    border: none;
    cursor: pointer;
    font-weight: 600;
    color: white;
    transition: var(--transition);
}

.hero-search-btn:hover {
    background: var(--primary-dark);
}

.tools-section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.tool-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    transition: var(--transition);
    text-decoration: none;
    display: block;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.tool-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-1);
    border-radius: var(--border-radius);
    margin-bottom: 16px;
}

.tool-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.tool-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.tool-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.tool-card-badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    margin-top: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.alert {
    padding: 16px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.dark-mode .alert-success {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border-color: rgba(16, 185, 129, 0.3);
}

.dark-mode .alert-error {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.3);
}

.dark-mode .alert-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
    border-color: rgba(245, 158, 11, 0.3);
}

.card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
}

.page-header {
    padding: 48px 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
}

.breadcrumb-separator {
    color: var(--text-muted);
}

@media (max-width: 1024px) {
    .mega-menu-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        padding: 24px;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 999;
    }
    
    .main-nav.active {
        transform: translateX(0);
    }
    
    .nav-list {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-link {
        padding: 16px;
        font-size: 1.1rem;
        color: var(--text-primary) !important;
        text-shadow: none !important;
    }
    
    .nav-link:hover,
    .nav-link.active {
        color: var(--primary) !important;
        background: var(--primary-light) !important;
    }
    
    .main-header .nav-link {
        color: var(--text-primary) !important;
    }
    
    .main-nav .dropdown-arrow {
        color: var(--text-secondary) !important;
    }
    
    .dropdown-menu,
    .mega-menu {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--bg-secondary);
        margin-top: 8px;
        display: none;
    }
    
    .nav-item.has-dropdown.open .dropdown-menu {
        display: block;
        opacity: 1;
        visibility: visible;
    }
    
    .mega-menu {
        min-width: 100%;
    }
    
    .mega-menu-grid {
        grid-template-columns: 1fr;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header-search {
        display: none;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-search-form {
        flex-direction: column;
        border-radius: var(--border-radius);
    }
    
    .hero-search-btn {
        border-radius: 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}