/* CSS Variables - 60-30-10 Color Rule */
:root {
    /* Primary Colors (60%) */
    --primary-bg: #f8fafc;
    --primary-white: #ffffff;
    --primary-light: #f1f5f9;
    
    /* Secondary Colors (30%) */
    --secondary-blue: #3b82f6;
    --secondary-blue-light: #dbeafe;
    --secondary-blue-dark: #1d4ed8;
    --secondary-gray: #64748b;
    --secondary-gray-light: #e2e8f0;
    
    /* Accent Colors (10%) */
    --accent-orange: #f97316;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    
    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Header */
.header {
    background-color: var(--primary-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    color: var(--secondary-blue);
    text-decoration: none;
}

.logo-image {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.logo i {
    font-size: 2rem;
    color: var(--accent-orange);
}

/* Navigation */
.nav {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: var(--font-medium);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    display: block;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--secondary-blue);
    background-color: var(--secondary-blue-light);
}

/* All Tools Button */
.all-tools-btn {
    background: linear-gradient(135deg, var(--secondary-blue), var(--secondary-blue-dark));
    color: white !important;
    border-radius: var(--radius-lg);
    padding: var(--space-sm) var(--space-lg);
    font-weight: var(--font-semibold);
    position: relative;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.25);
    transition: all var(--transition-normal);
    margin: 15px 0;
}

.all-tools-btn:hover {
    background: linear-gradient(135deg, var(--secondary-blue-dark), var(--accent-purple));
    color: white !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
}

.all-tools-btn i {
    margin-left: var(--space-xs);
    font-size: 0.8rem;
    transition: transform var(--transition-normal);
}

.mega-menu-trigger:hover .all-tools-btn i {
    transform: rotate(180deg);
}

/* Mega Menu */
.mega-menu-trigger {
    position: relative;
}

.mega-menu {
    position: fixed;
    top: 70px;
    left: 50%;
    width: 100vw;
    max-width: 1200px;
    background-color: var(--primary-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--secondary-gray-light);
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-10px);
    transition: all var(--transition-normal);
    z-index: 1000;
}

.mega-menu-trigger:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.mega-menu-content {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-lg);
    padding: var(--space-xl);
 
}

.mega-menu-column {
    min-width: 0;
}

.mega-menu-column h4 {
    color: var(--secondary-blue);
    font-size: 1rem;
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-xs);
    border-bottom: 2px solid var(--secondary-blue-light);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.mega-menu-column h4 i {
    color: var(--accent-orange);
    font-size: 0.9rem;
}

.mega-menu-item {
    display: block;
    padding: var(--space-xs) var(--space-sm);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    font-size: 0.875rem;
    margin-bottom: var(--space-xs);
}

.mega-menu-item:hover {
    background-color: var(--secondary-blue-light);
    color: var(--secondary-blue);
    transform: translateX(4px);
}

/* Legacy Dropdown (remove) */
.dropdown-menu {
    display: none;
}

/* Legacy styles cleanup - remove duplicated code */

/* Focus styles for accessibility */
.nav-link:focus,
.dropdown-item:focus {
    outline: 2px solid var(--secondary-blue);
    outline-offset: 2px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--secondary-blue) 0%, var(--secondary-blue-dark) 50%, var(--accent-purple) 100%);
    color: white;
    padding: var(--space-2xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: var(--font-bold);
    margin-bottom: var(--space-lg);
    line-height: 1.2;
    background: linear-gradient(45deg, #ffffff, #f1f5f9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.hero-description {
    font-size: 1.375rem;
    margin-bottom: var(--space-2xl);
    opacity: 0.95;
    line-height: 1.7;
    font-weight: var(--font-normal);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
    margin-top: var(--space-xl);
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: var(--font-medium);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-normal);
}

.feature:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.feature i {
    font-size: 1.5rem;
    color: var(--accent-orange);
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

/* Ad Banner */
.ad-banner {
    background: linear-gradient(90deg, var(--primary-light), var(--secondary-gray-light));
    padding: var(--space-xl) 0;
    text-align: center;
    margin: var(--space-2xl) 0;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.ad-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: adShine 3s ease-in-out infinite;
}

@keyframes adShine {
    0% { left: -100%; }
    100% { left: 100%; }
}

.ad-banner .adsbygoogle {
    max-width: 728px;
    margin: 0 auto;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    z-index: 1;
}


.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
}


/* Main Content */
.main {
    padding: var(--space-2xl) 0;
    background: linear-gradient(180deg, var(--primary-bg) 0%, rgba(241, 245, 249, 0.5) 100%);
    min-height: 100vh;
}

/* Tools Sections */
.tools-section {
    margin-bottom: var(--space-2xl);
    background-color: var(--primary-white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--secondary-gray-light);
    position: relative;
}

.tools-section:last-child {
    margin-bottom: 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    font-size: 1.75rem;
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.section-title i {
    color: var(--accent-orange);
}

.section-description {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xs);
    margin-top: var(--space-2xl);
    padding: 0;
    align-items: start;
}

@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xs);
        margin-top: var(--space-xl);
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xs);
    }
}

@media (min-width: 1025px) and (max-width: 1199px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-xs);
    }
}

@media (min-width: 1200px) {
    .tools-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-xs);
    }
}

.tool-card {
    background-color: var(--primary-white);
    padding: var(--space-lg);

    box-shadow: var(--shadow-sm);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-normal);
    border: 1px solid var(--secondary-gray-light);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 200px;
    justify-content: flex-start;
    align-items: flex-start;
}

@media (min-width: 1200px) {
    .tool-card {
        padding: var(--space-xl);
        min-height: 220px;
    }
}

.tool-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-blue-light);
}

.tool-card.available:hover {
    border-color: var(--accent-green);
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.2);
}

.tool-card.coming-soon:hover {
    border-color: var(--accent-orange);
    box-shadow: 0 20px 40px rgba(249, 115, 22, 0.2);
}

/* Category-specific hover effects */
.tool-card[href*="image-"]:hover,
.tool-card[href*="gif-"]:hover,
.tool-card[href*="favicon-generator"]:hover,
.tool-card[href*="format-converter"]:hover,
.tool-card[href*="background-remover"]:hover,
.tool-card[href*="watermark"]:hover,
.tool-card[href*="color-palette"]:hover {
    box-shadow: 0 20px 40px rgba(236, 72, 153, 0.25);
    border-color: rgba(236, 72, 153, 0.3);
}

.tool-card[href*="pdf-"]:hover {
    box-shadow: 0 20px 40px rgba(239, 68, 68, 0.25);
    border-color: rgba(239, 68, 68, 0.3);
}

.tool-card[href*="currency-"]:hover,
.tool-card[href*="unit-"]:hover,
.tool-card[href*="percent-"]:hover,
.tool-card[href*="bmi-"]:hover,
.tool-card[href*="calorie-"]:hover,
.tool-card[href*="age-"]:hover,
.tool-card[href*="time-"]:hover,
.tool-card[href*="loan-"]:hover,
.tool-card[href*="compound-"]:hover {
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.25);
    border-color: rgba(16, 185, 129, 0.3);
}

.tool-card[href*="qr-"]:hover,
.tool-card[href*="barcode-"]:hover,
.tool-card[href*="text-"]:hover,
.tool-card[href*="case-"]:hover,
.tool-card[href*="password-"]:hover,
.tool-card[href*="hash-"]:hover,
.tool-card[href*="lorem-"]:hover,
.tool-card[href*="markdown-"]:hover {
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.25);
    border-color: rgba(59, 130, 246, 0.3);
}

.tool-card[href*="gradient-"]:hover,
.tool-card[href*="shadow-"]:hover,
.tool-card[href*="color-"]:hover,
.tool-card[href*="css-"]:hover,
.tool-card[href*="border-"]:hover,
.tool-card[href*="font-"]:hover {
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.25);
    border-color: rgba(139, 92, 246, 0.3);
}

.tool-card[href*="timer-"]:hover,
.tool-card[href*="random-"]:hover,
.tool-card[href*="uuid-"]:hover,
.tool-card[href*="base-"]:hover,
.tool-card[href*="ascii-"]:hover,
.tool-card[href*="world-"]:hover,
.tool-card[href*="notepad"]:hover,
.tool-card[href*="utm-generator"]:hover {
    box-shadow: 0 20px 40px rgba(245, 158, 11, 0.25);
    border-color: rgba(245, 158, 11, 0.3);
}

.tool-card[href*="json-"]:hover,
.tool-card[href*="code-"]:hover,
.tool-card[href*="regex-"]:hover,
.tool-card[href*="url-"]:hover,
.tool-card[href*="html-"]:hover {
    box-shadow: 0 20px 40px rgba(6, 182, 212, 0.25);
    border-color: rgba(6, 182, 212, 0.3);
}

.tool-icon {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    transition: all var(--transition-normal);
}

.tool-card:hover .tool-icon {
    transform: scale(1.05) rotate(2deg);
}

/* Category-specific icon colors with improved contrast and clarity */

/* Image & Media Tools - Vibrant Pink/Magenta */
.tool-card[href*="favicon-generator"] .tool-icon,
.tool-card[href*="image-"] .tool-icon,
.tool-card[href*="gif-"] .tool-icon,
.tool-card[href*="format-converter"] .tool-icon,
.tool-card[href*="background-remover"] .tool-icon,
.tool-card[href*="watermark"] .tool-icon,
.tool-card[href*="color-palette"] .tool-icon {
    background: linear-gradient(135deg, #ec4899 0%, #be185d 50%, #9f1239 100%);
    box-shadow: 0 4px 20px rgba(236, 72, 153, 0.3);
}

/* PDF Tools - Rich Red */
.tool-card[href*="pdf-"] .tool-icon {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 50%, #b91c1c 100%);
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.3);
}

/* Calculator & Finance Tools - Professional Green */
.tool-card[href*="currency-"] .tool-icon,
.tool-card[href*="unit-"] .tool-icon,
.tool-card[href*="percent-"] .tool-icon,
.tool-card[href*="bmi-"] .tool-icon,
.tool-card[href*="calorie-"] .tool-icon,
.tool-card[href*="age-"] .tool-icon,
.tool-card[href*="time-"] .tool-icon,
.tool-card[href*="loan-"] .tool-icon,
.tool-card[href*="compound-"] .tool-icon {
    background: linear-gradient(135deg, #10b981 0%, #059669 50%, #047857 100%);
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

/* Text & Security Tools - Professional Blue */
.tool-card[href*="qr-"] .tool-icon,
.tool-card[href*="barcode-"] .tool-icon,
.tool-card[href*="text-"] .tool-icon,
.tool-card[href*="case-"] .tool-icon,
.tool-card[href*="password-"] .tool-icon,
.tool-card[href*="hash-"] .tool-icon,
.tool-card[href*="lorem-"] .tool-icon,
.tool-card[href*="markdown-"] .tool-icon {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 50%, #1d4ed8 100%);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

/* Design & CSS Tools - Modern Purple */
.tool-card[href*="gradient-"] .tool-icon,
.tool-card[href*="shadow-"] .tool-icon,
.tool-card[href*="color-"] .tool-icon,
.tool-card[href*="css-"] .tool-icon,
.tool-card[href*="border-"] .tool-icon,
.tool-card[href*="font-"] .tool-icon {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 50%, #6d28d9 100%);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

/* Utility & Productivity Tools - Warm Orange */
.tool-card[href*="timer-"] .tool-icon,
.tool-card[href*="random-"] .tool-icon,
.tool-card[href*="uuid-"] .tool-icon,
.tool-card[href*="base-"] .tool-icon,
.tool-card[href*="ascii-"] .tool-icon,
.tool-card[href*="world-"] .tool-icon,
.tool-card[href*="notepad"] .tool-icon,
.tool-card[href*="utm-generator"] .tool-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 50%, #b45309 100%);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
}

/* Developer & Code Tools - Cyan/Teal */
.tool-card[href*="json-"] .tool-icon,
.tool-card[href*="code-"] .tool-icon,
.tool-card[href*="regex-"] .tool-icon,
.tool-card[href*="url-"] .tool-icon,
.tool-card[href*="html-"] .tool-icon {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 50%, #0e7490 100%);
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
}

/* Icon animations */
.tool-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.15), transparent);
    transform: rotate(45deg);
    transition: var(--transition-normal);
    opacity: 0;
}

.tool-card:hover .tool-icon::before {
    opacity: 1;
    animation: shine 0.6s ease-in-out;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.tool-icon i {
    font-size: 2rem;
    color: white;
    z-index: 1;
    position: relative;
    filter: drop-shadow(0 3px 6px rgba(0,0,0,0.25));
    transition: all var(--transition-normal);
}

.tool-card:hover .tool-icon i {
    transform: scale(1.1);
}

.tool-card h3 {
    font-size: 1.25rem;
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
    line-height: 1.3;
}

.tool-card p {
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--space-md);
    font-size: 0.9rem;
}

.tool-status {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: var(--font-medium);
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
}

.tool-status.available {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.tool-status.coming-soon {
    background-color: rgba(249, 115, 22, 0.1);
    color: var(--accent-orange);
    border: 1px solid rgba(249, 115, 22, 0.2);
}

/* Search and Filter Styles */
.search-container {
    position: relative;
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.search-input {
    width: 100%;
    padding: var(--space-md) var(--space-xl) var(--space-md) 3rem;
    border: 2px solid var(--secondary-gray-light);
    border-radius: var(--radius-xl);
    font-size: 1.125rem;
    background-color: var(--primary-white);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.search-input:focus {
    outline: none;
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.search-icon {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 1.25rem;
    pointer-events: none;
}

.category-filters {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    border: 2px solid var(--secondary-gray-light);
    background-color: var(--primary-white);
    color: var(--text-secondary);
    border-radius: var(--radius-xl);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: var(--transition-normal);
    font-size: 0.9rem;
}

.filter-btn:hover {
    border-color: var(--secondary-blue);
    color: var(--secondary-blue);
    background-color: var(--secondary-blue-light);
}

.filter-btn.active {
    background-color: var(--secondary-blue);
    color: white;
    border-color: var(--secondary-blue);
}

.filter-btn.active:hover {
    background-color: var(--secondary-blue-dark);
    border-color: var(--secondary-blue-dark);
}

/* No Results Message */
.no-results-message {
    display: none;
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    margin: var(--space-2xl) 0;
    background-color: var(--primary-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--secondary-gray-light);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.3s ease-out forwards;
}

.no-results-content {
    max-width: 400px;
    margin: 0 auto;
}

.no-results-message i {
    font-size: 3rem;
    color: var(--text-light);
    margin-bottom: var(--space-lg);
    display: block;
}

.no-results-message h3 {
    font-size: 1.5rem;
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.no-results-message p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}


/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--space-2xl) 0 var(--space-lg);
    margin-top: var(--space-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--space-md);
    color: var(--accent-orange);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--space-sm);
}

.footer-section ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: var(--transition-normal);
}

.footer-section ul li a:hover {
    color: var(--accent-orange);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: var(--space-lg);
    text-align: center;
    color: #9ca3af;
}

/* Support Section */
.support-section {
    text-align: center;
}

.support-btn {
    background: linear-gradient(135deg, #ff6b6b, #ff8e8e);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.support-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

.support-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.support-btn.supported {
    background: linear-gradient(135deg, #10b981, #34d399);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.support-btn.supported:hover {
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.support-count {
    color: #cbd5e1;
    font-size: 0.9rem;
    font-weight: 500;
}

.support-message {
    margin-top: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9rem;
    font-weight: 500;
    animation: fadeInUp 0.3s ease-out;
}

.support-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.support-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

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

/* Responsive Support Section */
@media (max-width: 768px) {
    .support-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .support-count {
        font-size: 0.8rem;
    }
    
    .support-message {
        font-size: 0.8rem;
        padding: var(--space-xs) var(--space-sm);
    }
}



@media (max-width: 768px) {
    .no-results-message {
        margin: var(--space-xl) 0;
        padding: var(--space-xl) var(--space-md);
    }
    
    .no-results-message i {
        font-size: 2.5rem;
        margin-bottom: var(--space-md);
    }
    
    .no-results-message h3 {
        font-size: 1.25rem;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .logo-image {
        height: 45px;
        margin: 10px 0;
    }
    
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--primary-white);
        box-shadow: var(--shadow-lg);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        padding: var(--space-lg);
        flex-direction: column;
        gap: var(--space-sm);
        z-index: 1000;
    }
    
    .nav.active {
        display: flex;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        width: 100%;
        text-align: left;
    }
    
    /* Hide mega menu on mobile */
    .mega-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .hero-features {
        gap: var(--space-lg);
    }
    
    .feature {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.875rem;
    }
    
    .feature i {
        font-size: 1.25rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xs);
    }
    
    .tool-card {
        padding: var(--space-md);
    }
    
    .tool-icon {
        width: 50px;
        height: 50px;
    }
    
    .tool-icon i {
        font-size: 1.25rem;
    }
    
    .tool-card h3 {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 1.5rem;
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .section-description {
        font-size: 0.9rem;
    }
    
    .tools-section {
        padding: var(--space-lg);
        margin-bottom: var(--space-lg);
    }
    
    .ad-banner {
        margin: var(--space-xl) 0;
        border-radius: 0;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--space-xl) 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }
    
    .feature {
        justify-content: center;
        width: 100%;
        max-width: 280px;
    }
    
    .tool-icon {
        width: 45px;
        height: 45px;
    }
    
    .tool-icon i {
        font-size: 1.125rem;
    }
    
    .tool-card h3 {
        font-size: 1rem;
    }
    
    .tool-card p {
        font-size: 0.825rem;
    }
    
    .section-header {
        margin-bottom: var(--space-md);
    }
    
    .section-title {
        font-size: 1.375rem;
    }
    
    .section-description {
        font-size: 0.825rem;
    }
    
    .tools-section {
        padding: var(--space-md);
    }
}

/* Mega Menu Responsive */
@media (max-width: 1200px) {
    .mega-menu-content {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-md);
        padding: var(--space-lg);
    }
    
    .mega-menu {
        max-width: 95vw;
    }
}

@media (max-width: 992px) {
    .mega-menu-content {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .mega-menu {
        display: none !important;
    }
    
    .mega-menu-trigger .nav-link::after {
        content: " ▼";
        font-size: 0.7rem;
        opacity: 0.7;
    }
}

/* Performance Optimizations */
.tool-card,
.feature,
.mega-menu {
    will-change: transform;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow-sm: 0 2px 4px 0 rgb(0 0 0 / 0.3);
        --shadow-md: 0 4px 8px -1px rgb(0 0 0 / 0.3);
        --shadow-lg: 0 10px 20px -3px rgb(0 0 0 / 0.3);
    }
    
    .tool-card {
        border-width: 3px;
    }
}

/* Print styles */
@media print {
    .header,
    .ad-banner,
    .hero,
    .footer {
        display: none;
    }
    
    .tools-section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .tool-card {
        box-shadow: none;
        border: 1px solid #000;
    }
}

/* Focus management for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--secondary-blue);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1001;
}

.skip-link:focus {
    top: 6px;
}

/* Improved loading states */
.loading-state {
    opacity: 0.7;
    pointer-events: none;
}

.loading-state::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Error states */
.error-state {
    border-color: var(--accent-red);
    background-color: rgba(239, 68, 68, 0.05);
}

.error-message {
    color: var(--accent-red);
    font-size: 0.875rem;
    margin-top: var(--space-xs);
}

/* Success states */
.success-state {
    border-color: var(--accent-green);
    background-color: rgba(16, 185, 129, 0.05);
}

.success-message {
    color: var(--accent-green);
    font-size: 0.875rem;
    margin-top: var(--space-xs);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }
.mb-5 { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }
.mt-5 { margin-top: var(--space-xl); }

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(59, 130, 246, 0.3);
    border-radius: 50%;
    border-top-color: var(--secondary-blue);
    animation: spin 1s ease-in-out infinite;
}

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

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: var(--font-medium);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-normal);
    font-size: 1rem;
}

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

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

.btn-secondary {
    background-color: var(--secondary-gray-light);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--secondary-gray);
    color: white;
}

.btn-accent {
    background-color: var(--accent-orange);
    color: white;
    white-space: nowrap;
}

.btn-accent:hover {
    background-color: #ea580c;
}

/* Form Styles */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--secondary-gray-light);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition-normal);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Contact Section */
.contact-section {
    text-align: center;
    margin-top: var(--space-lg);
}

.contact-btn {
    background: linear-gradient(135deg, #3b82f6, #60a5fa);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.contact-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.contact-desc {
    color: #cbd5e1;
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0;
}

/* Contact Modal */
.contact-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: modalFadeIn 0.3s ease-out;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease-out;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xl) var(--space-xl) var(--space-lg);
    border-bottom: 1px solid var(--secondary-gray-light);
}

.modal-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--secondary-gray-light);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-xl);
}

.modal-body > p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--secondary-gray-light);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

.form-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
    margin-top: var(--space-xl);
}

.btn {
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    border: none;
}

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

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

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--secondary-gray-light);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--secondary-gray);
    color: white;
}

.contact-message {
    margin-bottom: var(--space-lg);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9rem;
    font-weight: 500;
    animation: fadeInUp 0.3s ease-out;
}

.contact-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.contact-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Auto Translation Banner */
.translation-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    z-index: 10000;
    transform: translateY(-100%);
    transition: transform 0.3s ease-out;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.translation-banner.show {
    transform: translateY(0);
}

.translation-banner.closing {
    transform: translateY(-100%);
}

.translation-banner-content {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-md) var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.translation-banner-icon {
    font-size: 2rem;
    opacity: 0.9;
}

.translation-banner-text {
    flex: 1;
}

.translation-banner-text p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.4;
}

.translation-banner-text strong {
    font-weight: 600;
}

.translation-banner-subtitle {
    font-size: 0.875rem;
    opacity: 0.8;
    margin-top: 4px !important;
}

.translation-banner-actions {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.translation-btn-primary,
.translation-btn-secondary,
.translation-btn-close {
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.translation-btn-primary {
    background: white;
    color: #667eea;
}

.translation-btn-primary:hover {
    background: #f8f9ff;
    transform: translateY(-1px);
}

.translation-btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.translation-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

.translation-btn-close {
    background: none;
    color: white;
    padding: var(--space-sm);
    min-width: 36px;
    justify-content: center;
    opacity: 0.7;
}

.translation-btn-close:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
}

/* Translation Guide Modal */
.translation-guide-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    animation: fadeIn 0.3s ease-out;
}

.translation-guide-content {
    background: white;
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    text-align: center;
    animation: slideIn 0.3s ease-out;
}

.translation-guide-content h3 {
    margin-top: 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.translation-guide-content p {
    color: var(--text-secondary);
    margin: var(--space-md) 0;
    line-height: 1.6;
}

/* Responsive Design for Translation Banner */
@media (max-width: 768px) {
    .translation-banner-content {
        flex-direction: column;
        gap: var(--space-md);
        padding: var(--space-md);
        text-align: center;
    }
    
    .translation-banner-icon {
        font-size: 1.5rem;
    }
    
    .translation-banner-text p {
        font-size: 0.9rem;
    }
    
    .translation-banner-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .translation-btn-primary,
    .translation-btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .translation-btn-close {
        position: absolute;
        top: var(--space-sm);
        right: var(--space-sm);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Google Translate Widget Container */
#google_translate_element {
    display: none;
}

/* Translation Notice */
.translation-notice {
    position: fixed;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #10b981, #34d399);
    color: white;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 10002;
    animation: slideInRight 0.3s ease-out;
    max-width: 350px;
}

.translation-notice.fade-out {
    animation: slideOutRight 0.3s ease-out;
}

.translation-notice-content {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.translation-notice-content i.fas.fa-language {
    font-size: 1.25rem;
}

.notice-close {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
    margin-left: auto;
}

.notice-close:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutRight {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100px);
    }
}

/* Mobile responsiveness for translation notice */
@media (max-width: 768px) {
    .translation-notice {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
    
    .translation-notice-content {
        font-size: 0.8rem;
    }
}