:root {
    --primary: #4361ee;
    --secondary: #3f37c9;
    --accent: #f72585;
    --light-accent: #4cc9f0;
    --dark: #212529;
    --light: #f8f9fa;
    --success: #4ad66d;
    --warning: #f8961e;
    --danger: #ef233c;
    --gray: #6c757d;
    --light-gray: #e9ecef;
}

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

body {
    font-family: 'Poppins', sans-serif;
    color: var(--dark);
    background-color: var(--light);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 15px 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

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

.logo i {
    margin-right: 10px;
    color: var(--accent);
    font-size: 1.8rem;
    animation: spin 8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
    padding: 5px 0;
    position: relative;
}

nav ul li a:hover {
    color: var(--primary);
}

nav ul li a.active {
    color: var(--primary);
}

nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
}

.search-bar {
    flex: 1;
    max-width: 400px;
    margin: 0 20px;
    position: relative;
}

.search-bar input {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--light-gray);
    border-radius: 30px;
    font-family: 'Poppins', sans-serif;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.search-bar input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.search-bar i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary), var(--light-accent));
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><circle cx="20" cy="20" r="5" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="20" r="8" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="50" r="10" fill="rgba(255,255,255,0.1)"/><circle cx="30" cy="80" r="7" fill="rgba(255,255,255,0.1)"/><circle cx="70" cy="70" r="6" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: 200px 200px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    animation: fadeInUp 1s ease 0.2s forwards;
    opacity: 0;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 1s ease 0.4s forwards;
    opacity: 0;
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(247, 37, 133, 0.3);
}

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

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

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

/* SEO Section */
.seo-section {
    padding: 40px 0;
    text-align: center;
    background-color: white;
}

.seo-section p {
    max-width: 800px;
    margin: 0 auto;
    color: var(--gray);
}

/* Tools Section */
.tools-section {
    padding: 60px 0;
    background-color: var(--light);
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.section-title h2 {
    font-size: 2rem;
    color: var(--dark);
    display: inline-block;
    padding-bottom: 10px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, var(--primary), var(--accent));
}

.filter-controls {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-btn {
    padding: 8px 16px;
    background-color: white;
    border: 1px solid var(--light-gray);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

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

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

.tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.tool-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
    animation-delay: calc(var(--delay) * 0.1s);
}

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

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.tool-icon {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    background: linear-gradient(135deg, var(--primary), var(--light-accent));
}

.tool-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.tool-content h3 {
    margin-bottom: 10px;
    font-size: 1.1rem;
    color: var(--dark);
}

.tool-content p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 20px;
    flex: 1;
}

.tool-btn {
    align-self: flex-start;
    padding: 8px 20px;
    background-color: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color 0.3s;
}

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

/* Footer */
footer {
    background-color: var(--dark);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent);
}

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

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a {
    color: var(--light-gray);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-column p {
    color: var(--light-gray);
    font-size: 0.9rem;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: background-color 0.3s, transform 0.3s;
}

.social-links a:hover {
    background-color: var(--accent);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--light-gray);
    font-size: 0.9rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .logo {
        margin-bottom: 15px;
    }
    
    .search-bar {
        order: 3;
        width: 100%;
        max-width: 100%;
        margin: 15px 0;
    }
    
    nav {
        width: 100%;
        margin-top: 15px;
        display: none;
    }
    
    nav.active {
        display: block;
    }
    
    nav ul {
        flex-direction: column;
    }
    
    nav ul li {
        margin: 0;
        border-bottom: 1px solid var(--light-gray);
    }
    
    nav ul li a {
        display: block;
        padding: 10px 0;
    }
    
    .mobile-menu-btn {
        display: block;
        position: absolute;
        top: 20px;
        right: 20px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}