/* ISO 27001 Framework Styles */
:root {
    /* Core colors */
    --primary: #2C7A7B;
    --primary-dark: #285E61;
    --primary-light: #4FD1C5;
    --accent: #38B2AC;
    --accent-dark: #319795;
    
    /* UI colors */
    --text-primary: #2D3748;
    --text-secondary: #4A5568;
    --text-light: #718096;
    --background: #F7FAFC;
    --card-bg: #FFFFFF;
    
    /* Status colors */
    --success: #48BB78;
    --warning: #ED8936;
    --error: #E53E3E;
    
    /* Effects */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
}

/* 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);
}

/* Hero section */
.hero {
    background: var(--gradient-primary);
    color: white;
    padding: 4rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    animation: patternShift 30s linear infinite;
}

@keyframes patternShift {
    0% { background-position: 0 0; }
    100% { background-position: 100px 100px; }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 3rem;
}

/* Statistics */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* Navigation */
.nav-container {
    background: var(--card-bg);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    gap: 2rem;
    overflow-x: auto;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

/* Main content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.content-section {
    margin-bottom: 6rem;
    animation: fadeIn 0.5s ease-out;
}

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

.section-icon {
    width: 40px;
    height: 40px;
    color: var(--primary);
    margin-bottom: 1rem;
}

.content-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--primary-dark);
    line-height: 1.2;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.info-card {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.info-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-item {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.feature-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.requirement-card {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}

.requirement-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.requirement-card ul {
    margin-left: 1.5rem;
}

.requirement-card li {
    margin-bottom: 0.5rem;
}

.requirement-card li::before {
    content: "✓";
    color: var(--primary);
    display: inline-block;
    width: 1rem;
    margin-left: -1rem;
}

.implementation-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step-card {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    padding-top: 3rem;
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.step-number {
    position: absolute;
    top: -1rem;
    left: 1.5rem;
    background-color: var(--primary);
    color: white;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

/* New CSS for added components */

/* Importance Section */
.importance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.importance-card {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 3px solid var(--primary);
}

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

.importance-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    background: rgba(44, 122, 123, 0.1);
    border-radius: 0.75rem;
    color: var(--primary);
}

.importance-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

/* When to Use Section */
.table-container {
    margin: 2rem 0;
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
    border-radius: 0.5rem;
}

.use-cases-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 0.5rem;
    overflow: hidden;
}

.use-cases-table th,
.challenges-table th {
    background: var(--primary);
    color: white;
    text-align: left;
    padding: 1rem 1.5rem;
    font-weight: 500;
}

.use-cases-table td,
.challenges-table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #e2e8f0;
}

.use-cases-table tr:last-child td,
.challenges-table tr:last-child td {
    border-bottom: none;
}

.use-cases-table tr:nth-child(even),
.challenges-table tr:nth-child(even) {
    background: #f7fafc;
}

.use-cases-table tr:hover,
.challenges-table tr:hover {
    background: rgba(44, 122, 123, 0.05);
}

.necessity-section {
    margin-top: 3rem;
    background: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border-left: 3px solid var(--primary);
}

.necessity-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.necessity-section p {
    margin-bottom: 1rem;
}

.necessity-section ul {
    margin-left: 1.5rem;
    list-style: none;
}

.necessity-section li {
    margin-bottom: 0.5rem;
    position: relative;
}

.necessity-section li::before {
    content: "•";
    color: var(--primary);
    display: inline-block;
    width: 1rem;
    margin-left: -1rem;
    font-weight: 700;
}

/* Component Subtitle */
.component-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin: 2.5rem 0 1.5rem;
}

.component-description {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

/* Controls Grid */
.controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.control-category {
    background: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

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

.category-icon {
    width: 3rem;
    height: 3rem;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-weight: 700;
}

.control-category h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

/* Certification Process */
.certification-steps {
    margin: 2rem 0;
}

.certification-step {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
    background: var(--card-bg);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.certification-icon {
    width: 3rem;
    height: 3rem;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.certification-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

.certification-content p {
    color: var(--text-secondary);
}

.cost-section {
    background: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border-left: 3px solid var(--primary);
    margin-top: 2rem;
}

.cost-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

/* Challenges Section */
.challenges-table-container {
    margin: 2rem 0;
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
    border-radius: 0.5rem;
}

.challenges-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 0.5rem;
    overflow: hidden;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.benefit-card {
    background: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

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

.benefit-icon {
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    background: rgba(44, 122, 123, 0.1);
    border-radius: 50%;
    color: var(--primary);
}

.benefit-icon svg {
    width: 1.75rem;
    height: 1.75rem;
}

/* Industry Use Cases */
.industry-use-cases {
    margin-top: 4rem;
}

.industry-use-cases h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.use-case-card {
    background: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.use-case-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    background: rgba(44, 122, 123, 0.1);
    border-radius: 0.75rem;
    color: var(--primary);
}

.use-case-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

/* Integration Section */
.integration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.integration-card {
    background: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 3px solid var(--primary);
    text-align: center;
}

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

.integration-icon {
    width: 3rem;
    height: 3rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-weight: 700;
    font-size: 0.9rem;
}

/* Final Insight Section */
.insight-card {
    background: var(--card-bg);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border-left: 3px solid var(--primary);
    margin-top: 2rem;
    position: relative;
}

.insight-card p {
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.8;
}

.insight-card::before {
    content: '"';
    position: absolute;
    top: 1rem;
    left: 1rem;
    font-size: 4rem;
    color: rgba(44, 122, 123, 0.1);
    line-height: 1;
}

/* Animation */
.importance-card,
.control-category,
.certification-step,
.benefit-card,
.use-case-card,
.integration-card {
    opacity: 0;
    animation: fadeIn 0.6s ease-out forwards;
}

.importance-card:nth-child(1),
.control-category:nth-child(1),
.certification-step:nth-child(1),
.benefit-card:nth-child(1),
.use-case-card:nth-child(1),
.integration-card:nth-child(1) {
    animation-delay: 0.1s;
}

.importance-card:nth-child(2),
.control-category:nth-child(2),
.certification-step:nth-child(2),
.benefit-card:nth-child(2),
.use-case-card:nth-child(2),
.integration-card:nth-child(2) {
    animation-delay: 0.2s;
}

.importance-card:nth-child(3),
.control-category:nth-child(3),
.certification-step:nth-child(3),
.benefit-card:nth-child(3),
.use-case-card:nth-child(3),
.integration-card:nth-child(3) {
    animation-delay: 0.3s;
}

.importance-card:nth-child(4),
.control-category:nth-child(4),
.benefit-card:nth-child(4) {
    animation-delay: 0.4s;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .nav-content {
        padding: 0.5rem 1rem;
    }
    
    .main-content {
        padding: 2rem 1rem;
    }
    
    .content-section {
        margin-bottom: 4rem;
    }
    
    .info-grid,
    .importance-grid,
    .controls-grid,
    .benefits-grid,
    .use-cases-grid,
    .integration-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-list,
    .requirements-grid,
    .implementation-steps {
        grid-template-columns: 1fr;
    }
    
    .content-section h2 {
        font-size: 2rem;
    }
    
    .component-subtitle {
        font-size: 1.35rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .content-section h2 {
        font-size: 1.75rem;
    }
    
    .info-card,
    .importance-card,
    .feature-item,
    .requirement-card,
    .step-card,
    .control-category,
    .certification-step,
    .necessity-section,
    .cost-section,
    .benefit-card,
    .use-case-card,
    .integration-card,
    .insight-card {
        padding: 1.5rem;
    }
    
    .certification-icon,
    .category-icon {
        width: 2.5rem;
        height: 2.5rem;
    }
}