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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 3rem 1rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.tagline {
    font-size: 1.3rem;
    margin-bottom: 0.3rem;
    font-weight: 500;
}

.subtitle {
    font-size: 1rem;
    opacity: 0.9;
}

/* Main Content */
main {
    padding: 3rem 0;
}

.intro {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 3rem;
    text-align: center;
}

.intro h2 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.intro p {
    font-size: 1.1rem;
    color: #555;
    max-width: 800px;
    margin: 0 auto;
}

/* Sections */
section.tools {
    margin-bottom: 4rem;
}

section.tools h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #2c3e50;
    text-align: center;
}

/* Tool Grid */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-decoration: none;
    color: #2c3e50;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border: 2px solid transparent;
    text-align: center;
}

.tool-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(102, 126, 234, 0.2);
    border-color: #667eea;
}

.tool-card.interactive {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.tool-card.interactive:hover {
    box-shadow: 0 12px 24px rgba(245, 87, 108, 0.3);
    border-color: #f5576c;
}

.tool-card.interactive h3,
.tool-card.interactive p {
    color: white;
}

.icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.tool-card h3 {
    color: #667eea;
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.tool-card p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 8px 16px rgba(102, 126, 234, 0.3);
}

.cta h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    background: white;
    color: #667eea;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 4rem;
}

footer p {
    margin: 0.5rem 0;
}

footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

footer a:hover {
    text-decoration: underline;
}

/* Content Pages Styles */
.content-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 1rem;
    text-align: center;
    margin-bottom: 2rem;
}

.content-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.content-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.content-wrapper {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 2rem;
}

.back-link {
    display: inline-block;
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    margin-top: 2rem;
    padding: 0.8rem 1.5rem;
    border: 2px solid #667eea;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.back-link:hover {
    background: #667eea;
    color: white;
}

/* Vulnerability Items */
.vuln-item {
    background: #f8f9fa;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.vuln-item h2 {
    color: #e74c3c;
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.vuln-item h3 {
    color: #667eea;
    font-size: 1.2rem;
    margin: 1rem 0 0.5rem 0;
}

.vuln-item p {
    margin: 0.5rem 0;
    line-height: 1.6;
}

.vuln-item strong {
    color: #2c3e50;
    font-weight: 600;
}

.vuln-item code {
    background: #2c3e50;
    color: #fff;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.vuln-item pre {
    background: #2c3e50;
    color: #fff;
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1rem 0;
}

.vuln-item pre code {
    background: none;
    padding: 0;
}

.detailed-link {
    display: inline-block;
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    margin-top: 0.5rem;
    transition: color 0.3s ease;
}

.detailed-link:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

th {
    background: #667eea;
    color: white;
    font-weight: 600;
}

tr:hover {
    background: #f8f9fa;
}

/* Code Blocks */
.code-block {
    background: #2c3e50;
    color: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
    overflow-x: auto;
}

.code-block code {
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Warning/Info Boxes */
.warning-box {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 4px;
}

.info-box {
    background: #d1ecf1;
    border-left: 4px solid #17a2b8;
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 4px;
}

.success-box {
    background: #d4edda;
    border-left: 4px solid #28a745;
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 4px;
}

/* Interactive Tools Styling */
.tool-form {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 8px;
    margin: 2rem 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.btn {
    background: #667eea;
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background: #764ba2;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.result-box {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1.5rem;
    border: 2px solid #667eea;
}

.result-box h3 {
    color: #667eea;
    margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1.1rem;
    }
    
    .tool-grid {
        grid-template-columns: 1fr;
    }
    
    .content-wrapper {
        padding: 1.5rem;
    }
    
    table {
        font-size: 0.9rem;
    }
    
    th, td {
        padding: 0.6rem;
    }
}