/* Professional Modern Website CSS */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #475569;
    --accent-color: #3b82f6;
    --background: #ffffff;
    --surface: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
}

/* Header Styles */
header {
    background-color: var(--background);
    padding: 1rem 2rem;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

/* Navigation Styles */
nav {
    background-color: var(--background);
    border-bottom: 1px solid var(--border-color);
}

nav ul {
    max-width: 1200px;
    margin: 0 auto;
    list-style: none;
    display: flex;
    gap: 2rem;
    padding: 1rem 2rem;
}

nav ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
}

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

/* Container and Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    color: white;
    text-align: center;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
}

/* Buttons */
.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.button-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
}

.button-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.button-secondary {
    background-color: var(--surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.button-secondary:hover {
    background-color: var(--background);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Footer */
footer {
    background-color: var(--surface);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    color: var(--text-secondary);
}

/* Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product {
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.product:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.product p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Contact Form Styles */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    background-color: var(--surface);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.contact-info {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background-color: var(--surface);
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.contact-info i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Attack Cards Styles */
.attack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.attack-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

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

.attack-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.attack-title {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.attack-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.defense-list {
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 1rem;
    margin-top: 1rem;
}

.defense-list h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.defense-list ul {
    list-style: none;
    padding: 0;
}

.defense-list li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.defense-list li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0.5rem;
}

.severity {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.severity.high {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.severity.medium {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.severity.low {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

/* Tool Cards Styles */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.tool-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

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

.tool-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.tool-title {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tool-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.setup-instructions {
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 1rem;
    margin-top: 1rem;
}

.setup-instructions h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.setup-instructions ul {
    list-style: none;
    padding: 0;
}

.setup-instructions li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.setup-instructions code {
    background: var(--surface);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    color: var(--primary-color);
    font-family: monospace;
}

.os-icon {
    width: 16px;
    height: 16px;
    margin-right: 0.5rem;
}

/* Learning Section Styles */
.learning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.course-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

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

.course-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.course-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.course-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: auto;
}

.course-meta i {
    color: var(--primary-color);
}

.difficulty {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.difficulty.beginner {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.difficulty.intermediate {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.difficulty.advanced {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

/* Progress Indicator */
.progress-bar {
    width: 100%;
    height: 0.5rem;
    background-color: var(--surface);
    border-radius: 0.25rem;
    margin-top: 1rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 0.25rem;
    transition: width 0.3s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        padding: 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .container {
        padding: 1rem;
    }

    .consent-content {
        flex-direction: column;
        text-align: center;
    }
    
    .consent-buttons {
        flex-direction: column;
        width: 100%;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }