/* ============================================
   Cloud Security Documentation - Professional Styles
   ============================================ */

/* ============================================
   CSS Variables & Design Tokens
   ============================================ */
:root {
    /* Primary Colors */
    --primary-color: #159957;
    --primary-dark: #0d7042;
    --primary-light: #1eb260;
    --secondary-color: #155799;
    --secondary-dark: #0d3d6b;
    --secondary-light: #1e6bb8;

    /* Neutral Colors */
    --text-color: #24292e;
    --text-light: #586069;
    --text-lighter: #6a737d;
    --bg-white: #ffffff;
    --bg-light: #f6f8fa;
    --bg-lighter: #fafbfc;
    --border-color: #e1e4e8;
    --border-light: #eaecef;

    /* Semantic Colors */
    --success-color: #28a745;
    --warning-color: #ffc107;
    --error-color: #dc3545;
    --info-color: #17a2b8;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Navigation
   ============================================ */
.navigation {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--text-color);
}

.nav-title {
    font-weight: 600;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-xs);
    align-items: center;
}

.nav-menu > li {
    position: relative;
}

.nav-menu a {
    display: block;
    padding: var(--space-xs) var(--space-md);
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--bg-light);
    color: var(--primary-color);
}

/* Dropdown Styles */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    list-style: none;
    padding: var(--space-xs);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: 100;
}

.dropdown.active .dropdown-menu,
.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    padding: var(--space-sm);
    font-size: 0.875rem;
    white-space: nowrap;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    padding: var(--space-3xl) var(--space-lg);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
    max-width: 1280px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-md);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    opacity: 0.95;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.7;
    opacity: 0.9;
    margin-bottom: var(--space-lg);
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-diagram {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.2));
    border-radius: var(--radius-lg);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    transition: all var(--transition-base);
    cursor: pointer;
    text-align: center;
    line-height: 1.5;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

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

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

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

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1.125rem;
}

/* ============================================
   Badges
   ============================================ */
.badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
}

.badge-primary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    backdrop-filter: blur(10px);
}

/* ============================================
   Container & Grid Systems
   ============================================ */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-lg);
}

/* ============================================
   Section Styles
   ============================================ */
section {
    padding: var(--space-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    font-weight: 400;
}

/* ============================================
   Executive Summary
   ============================================ */
.executive-summary {
    background: var(--bg-lighter);
}

.summary-card {
    background: var(--bg-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.summary-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.summary-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.summary-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-color);
}

.summary-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   KPI Section
   ============================================ */
.kpi-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.kpi-section .section-title,
.kpi-section .section-subtitle {
    color: white;
}

.kpi-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-base);
}

.kpi-card:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-4px);
}

.kpi-value {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.kpi-label {
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: var(--space-sm);
}

.kpi-trend {
    font-size: 0.875rem;
    font-weight: 600;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    display: inline-block;
}

.trend-up {
    background: rgba(40, 167, 69, 0.3);
}

.trend-stable {
    background: rgba(255, 193, 7, 0.3);
}

/* ============================================
   Framework Cards
   ============================================ */
.framework-card {
    background: var(--bg-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
    transition: all var(--transition-base);
}

.framework-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.framework-card h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-color);
}

.framework-card p {
    color: var(--text-light);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.framework-features {
    list-style: none;
    margin-bottom: var(--space-lg);
}

.framework-features li {
    padding: var(--space-xs) 0;
    color: var(--text-color);
}

.card-security {
    border-left-color: var(--primary-color);
}

.card-compliance {
    border-left-color: var(--secondary-color);
}

.card-risk {
    border-left-color: var(--info-color);
}

/* ============================================
   Pillar Cards
   ============================================ */
.pillars-section {
    background: var(--bg-light);
}

.pillar-card {
    background: var(--bg-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: all var(--transition-base);
}

.pillar-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.pillar-number {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    font-size: 4rem;
    font-weight: 700;
    color: var(--bg-light);
    line-height: 1;
}

.pillar-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-color);
}

.pillar-card p {
    color: var(--text-light);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.link-arrow {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
}

.link-arrow:hover {
    color: var(--primary-dark);
    transform: translateX(4px);
    display: inline-block;
}

/* ============================================
   Innovation Section
   ============================================ */
.innovation-card {
    background: var(--bg-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: all var(--transition-base);
}

.innovation-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.innovation-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: var(--primary-color);
    color: white;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.innovation-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-color);
}

.innovation-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   Platform Cards
   ============================================ */
.platforms-section {
    background: var(--bg-lighter);
}

.platform-card {
    background: var(--bg-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all var(--transition-base);
}

.platform-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.platform-logo {
    margin-bottom: var(--space-lg);
}

.platform-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-color);
}

.platform-card p {
    color: var(--text-light);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.platform-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    justify-content: center;
}

.feature-tag {
    background: var(--bg-light);
    color: var(--text-color);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

/* ============================================
   Documentation Grid
   ============================================ */
.doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-md);
}

.doc-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: var(--bg-white);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    color: var(--text-color);
    transition: all var(--transition-base);
    border: 1px solid var(--border-light);
}

.doc-link:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.doc-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.doc-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-color);
}

.doc-content p {
    font-size: 0.875rem;
    color: var(--text-light);
    margin: 0;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.cta-content p {
    font-size: 1.25rem;
    opacity: 0.95;
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--text-color);
    color: white;
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--space-sm);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom p {
    margin-bottom: var(--space-xs);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
    text-align: center;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .hero-visual {
        order: -1;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .nav-menu {
        display: none; /* Simplified for mobile - can add hamburger menu if needed */
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .hero {
        padding: var(--space-xl) var(--space-md);
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .nav-container {
        padding: 0 var(--space-md);
    }
}

/* ============================================
   Default Layout Compatibility
   ============================================ */
.header {
    background: linear-gradient(120deg, var(--secondary-color), var(--primary-color));
    color: white;
    text-align: center;
    padding: 2rem 1rem;
}

.header h1 {
    color: white;
    margin: 0;
}

/* Code blocks */
pre {
    background: var(--bg-light);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

code {
    font-family: var(--font-mono);
    background: var(--bg-light);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
}

pre code {
    background: none;
    padding: 0;
}

/* Tables */
table {
    border-collapse: collapse;
    width: 100%;
    margin: var(--space-lg) 0;
}

th, td {
    border: 1px solid var(--border-color);
    padding: var(--space-sm);
    text-align: left;
}

th {
    background: var(--bg-light);
    font-weight: 600;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

/* Blockquotes */
blockquote {
    border-left: 4px solid var(--primary-color);
    margin: var(--space-lg) 0;
    padding-left: var(--space-lg);
    color: var(--text-light);
    font-style: italic;
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

/* Headings */
h1, h2, h3, h4, h5, h6 {
    margin-top: var(--space-lg);
    margin-bottom: var(--space-md);
    font-weight: 700;
    line-height: 1.3;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

/* Mermaid diagrams */
.mermaid {
    margin: var(--space-xl) 0;
    background: var(--bg-lighter);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
}

/* Print styles */
@media print {
    .navigation,
    .hero,
    .footer,
    .cta-section {
        display: none;
    }

    body {
        font-size: 12pt;
    }

    a {
        text-decoration: underline;
    }
}