/* Base Styles */
:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent: #5e72e4;
    --accent-hover: #4a5fc1;
    --link: #58a6ff;
    --border: #30363d;
    --border-hover: #484f58;
    --shadow: 0 4px 12px rgba(1, 4, 9, 0.8);
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --transition: all 0.2s cubic-bezier(0.3, 0, 0.5, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--link);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--accent-hover);
    text-decoration: none;
}

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

.btn-secondary:hover {
    background-color: var(--bg-primary);
    border-color: var(--border-hover);
    text-decoration: none;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.logo:hover {
    text-decoration: none;
}

.logo-icon {
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    margin-left: 2rem;
}

.nav-link {
    color: var(--text-primary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link:hover {
    color: var(--link);
    text-decoration: none;
}

.nav-link.active {
    color: white;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--accent);
    border-radius: 2px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    margin-left: auto;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(to bottom, var(--bg-primary) 0%, rgba(13, 17, 23, 0.9) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background-image: url('data:image/svg+xml;utf8,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="40" stroke="%2330363d" stroke-width="0.5" fill="none"/></svg>');
    background-size: 100px 100px;
    opacity: 0.1;
    z-index: -1;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #c9d1d9, #58a6ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    max-width: 800px;
}

.hero-subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* Tool Cards */
.featured-tools {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background-color: var(--accent);
    margin: 1rem auto 0;
    border-radius: 3px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.tool-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    text-decoration: none;
}

.tool-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(88, 166, 255, 0.1);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

.tool-icon svg {
    width: 24px;
    height: 24px;
}

.tool-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.tool-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 0;
}

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-text {
    color: var(--text-secondary);
    margin-top: 1rem;
    font-size: 0.9375rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

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

.footer-link {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.footer-link:hover {
    color: var(--link);
    text-decoration: none;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.footer-copyright {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--bg-primary);
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--accent);
    text-decoration: none;
}

.social-link:hover svg path {
    fill: white;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
}

/* Tools Page Specific Styles */
.tools-page {
    padding-top: 64px;
}

.tools-hero {
    padding: 4rem 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.tools-hero .hero-title {
    text-align: center;
    margin-bottom: 1.5rem;
}

.tools-hero .hero-subtitle {
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.search-box {
    display: flex;
    max-width: 600px;
    margin: 2rem auto 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(94, 114, 228, 0.3);
}

.search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    background-color: var(--bg-primary);
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.search-input:focus {
    outline: none;
}

.search-btn {
    background-color: var(--bg-secondary);
    border: none;
    padding: 0 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn:hover {
    background-color: var(--bg-primary);
}

.tools-filter {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.filter-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.filter-select {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-select:hover {
    border-color: var(--border-hover);
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(94, 114, 228, 0.3);
}

.tool-meta {
    display: flex;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 1rem;
    font-size: 0.8125rem;
}

.tool-category {
    background-color: rgba(88, 166, 255, 0.1);
    color: var(--link);
    padding: 0.25rem 0.5rem;
    border-radius: 2em;
}

.tool-stats {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--text-secondary);
}

.tool-stats svg {
    width: 14px;
    height: 14px;
}