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

:root {
    /* Primary Colors */
    --primary: #4361ee;
    --primary-dark: #3a0ca3;
    --primary-light: #4895ef;
    
    /* Secondary Colors */
    --secondary: #f72585;
    --success: #4cc9f0;
    --warning: #f8961e;
    --danger: #e63946;
    --info: #7209b7;
    
    /* Neutral Colors */
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --gray-light: #e9ecef;
    
    /* Additional Colors */
    --purple: #7209b7;
    --cyan: #00b4d8;
    
    /* Theme */
    --body-bg: #ffffff;
    --text-color: #333333;
    --border-color: #dee2e6;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ====== Base Styles ====== */
body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--body-bg);
    padding-top: 76px; /* For fixed navbar */
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--primary-dark);
}

p {
    margin-bottom: 1rem;
}

.container {
    max-width: 1200px;
}

.section-title {
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 2rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    border-radius: 2px;
}

/* ====== Navigation ====== */
.navbar {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: var(--shadow-md);
    padding: 1rem 0;
    transition: all var(--transition-normal);
    z-index: 1000;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: white !important;
}

.navbar-brand i {
    font-size: 1.8rem;
}

.nav-link {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 5px;
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: white !important;
    background: rgba(255,255,255,0.1);
}

/* ====== Hero Section ====== */
.hero-section {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 100px 0;
    margin-top: -76px;
    padding-top: 176px;
    position: relative;
    overflow: hidden;
}

.hero-section::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 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,213.3C672,192,768,128,864,128C960,128,1056,192,1152,208C1248,224,1344,192,1392,176L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
}

.hero-section .display-4 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-section .lead {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.hero-illustration {
    position: relative;
    height: 300px;
}

.main-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.05); }
}

.floating-icon {
    position: absolute;
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.15);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    animation: float 6s ease-in-out infinite;
}

.floating-icon span {
    font-size: 0.7rem;
    margin-top: 5px;
    opacity: 0.8;
}

.floating-icon:nth-child(1) { top: 20px; left: 20px; animation-delay: 0s; }
.floating-icon:nth-child(2) { top: 20px; right: 20px; animation-delay: 1s; }
.floating-icon:nth-child(3) { bottom: 20px; left: 20px; animation-delay: 2s; }
.floating-icon:nth-child(4) { bottom: 20px; right: 20px; animation-delay: 3s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ====== Stats Section ====== */
.stats-section {
    background: var(--light);
}

.stat-card {
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.stat-card h2 {
    margin-bottom: 0.5rem;
}

/* ====== Categories Section ====== */
.category-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.category-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    height: 100%;
    box-shadow: var(--shadow-sm);
    border: 2px solid transparent;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
}

.category-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.category-card h3 {
    margin-bottom: 1rem;
    color: var(--dark);
}

.category-card p {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.tool-count {
    display: inline-block;
    padding: 0.25rem 1rem;
    background: var(--gray-light);
    color: var(--gray);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Category Icon Backgrounds */
.bg-primary { background: linear-gradient(135deg, var(--primary), var(--primary-light)); }
.bg-success { background: linear-gradient(135deg, var(--success), #00b4d8); }
.bg-warning { background: linear-gradient(135deg, var(--warning), #ff9e00); }
.bg-danger { background: linear-gradient(135deg, var(--danger), #ff6b6b); }
.bg-info { background: linear-gradient(135deg, var(--info), #9d4edd); }
.bg-purple { background: linear-gradient(135deg, var(--purple), #c77dff); }

/* ====== Tools Section ====== */
.tool-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    height: 100%;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.tool-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.tool-card h4 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--dark);
}

.tool-card p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* ====== CTA Section ====== */
.cta-section {
    background: linear-gradient(135deg, var(--dark), #343a40);
    position: relative;
    overflow: hidden;
}

.cta-section::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 1440 320"><path fill="%234361ee" fill-opacity="0.1" d="M0,224L48,213.3C96,203,192,181,288,181.3C384,181,480,203,576,197.3C672,192,768,160,864,154.7C960,149,1056,171,1152,165.3C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
}

/* ====== Footer ====== */
.footer {
    background: var(--dark);
    color: white;
}

.footer a {
    color: #ddd;
    transition: color var(--transition-fast);
}

.footer a:hover {
    color: white;
}

.footer h5 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer ul li {
    margin-bottom: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

/* ====== Responsive Design ====== */
@media (max-width: 992px) {
    .hero-section .display-4 {
        font-size: 2.5rem;
    }
    
    .hero-illustration {
        height: 250px;
    }
    
    .main-icon {
        width: 120px;
        height: 120px;
        font-size: 3rem;
    }
    
    .floating-icon {
        width: 60px;
        height: 60px;
        font-size: 1.2rem;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 66px;
    }
    
    .hero-section {
        padding: 80px 0;
        padding-top: 146px;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .hero-section .display-4 {
        font-size: 2rem;
    }
    
    .hero-section .lead {
        font-size: 1.1rem;
    }
    
    .category-card,
    .tool-card {
        margin-bottom: 1rem;
    }
    
    #searchForm {
        margin-top: 1rem;
    }
}

@media (max-width: 576px) {
    .hero-section {
        padding: 60px 0;
        padding-top: 126px;
    }
    
    .hero-section .display-4 {
        font-size: 1.75rem;
    }
    
    .stat-card h2 {
        font-size: 2.5rem;
    }
    
    .category-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

/* ====== Utility Classes ====== */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

.btn-outline-primary {
    border-color: var(--primary);
    color: var(--primary);
}

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

.btn-outline-light:hover {
    color: var(--primary);
}

/* Loading Animation */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-light);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Tool Container (for individual tool pages) */
.tool-container {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    margin: 2rem auto;
}

.tool-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--gray-light);
}

.tool-header h1 {
    color: var(--primary);
}

/* Form Styles */
.form-control {
    border-radius: 8px;
    border: 2px solid var(--border-color);
    padding: 0.75rem 1rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.25rem rgba(67, 97, 238, 0.25);
}

/* Results Box */
.result-box {
    background: var(--light);
    border-left: 4px solid var(--primary);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1.5rem;
}

/* Alert Messages */
.alert {
    border-radius: 8px;
    border: none;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
}
EOF

echo "Professional style.css created!"