/* ============================================
   DevOps Defender - Landing Page Styles
   ============================================ */

/* ---- CSS Custom Properties ---- */
:root {
  --color-primary: #4f46e5;
  --color-primary-dark: #4338ca;
  --color-primary-light: #818cf8;
  --color-primary-50: #eef2ff;
  --color-primary-100: #e0e7ff;
  --color-accent: #0d9488;
  --color-accent-dark: #0f766e;
  --color-accent-light: #2dd4bf;
  --color-accent-50: #f0fdfa;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-light: #94a3b8;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-dark: #0f172a;
  --color-bg-dark-alt: #1e293b;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', Consolas, 'Courier New', monospace;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --transition: 200ms ease;
  --max-width: 1200px;
}

/* ---- Reset & Base ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

ul {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-text);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.125rem; }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-primary-50);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--color-primary-dark);
}

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  gap: 8px;
  line-height: 1.5;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.05rem;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
  background-color: var(--color-primary);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-outline-light {
  background-color: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.8);
  color: #ffffff;
  transform: translateY(-1px);
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
  padding: 16px 0;
}

.navbar.scrolled {
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  padding: 10px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  display: flex;
  align-items: center;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links li a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.925rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-links li a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-cta {
  background: var(--color-primary) !important;
  color: #ffffff !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-md) !important;
}

.nav-cta:hover {
  background: var(--color-primary-dark) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
  padding: 160px 0 100px;
  overflow: hidden;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(79, 70, 229, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(13, 148, 136, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 50%, rgba(79, 70, 229, 0.05) 0%, transparent 80%);
  pointer-events: none;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: rgba(79, 70, 229, 0.15);
  border: 1px solid rgba(79, 70, 229, 0.3);
  color: var(--color-primary-light);
  padding: 6px 18px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}

.hero h1 {
  color: #ffffff;
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-highlight {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 720px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero-stat-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.15);
}

/* ============================================
   Value Propositions
   ============================================ */
.value-props {
  padding: 80px 0;
  background: var(--color-bg);
  margin-top: -40px;
  position: relative;
  z-index: 2;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.value-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-light);
}

.value-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  background: var(--color-primary-50);
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
}

.value-card h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.value-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ============================================
   How It Works - Flow Diagram
   ============================================ */
.how-it-works {
  padding: 100px 0;
  background: var(--color-bg-alt);
}

.flow-diagram {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.flow-step {
  flex: 0 1 220px;
  text-align: center;
  position: relative;
  padding: 0 12px;
}

.flow-step-number {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.flow-step-icon {
  width: 96px;
  height: 96px;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: all var(--transition);
}

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

.flow-step h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.flow-step p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.flow-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 44px;
  flex: 0 0 40px;
}

/* ============================================
   Architecture Section
   ============================================ */
.architecture {
  padding: 100px 0;
  background: var(--color-bg);
}

.arch-diagram {
  max-width: 800px;
  margin: 0 auto 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.arch-layer {
  width: 100%;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  background: var(--color-bg);
}

.arch-label {
  position: absolute;
  top: -12px;
  left: 24px;
  background: var(--color-bg);
  padding: 0 12px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
}

.arch-nodes {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.arch-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 24px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-width: 160px;
  text-align: center;
}

.arch-node-icon {
  color: var(--color-primary);
  margin-bottom: 4px;
}

.arch-node span:first-of-type {
  font-weight: 600;
  font-size: 0.9rem;
}

.arch-node-detail {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

.arch-node-highlight {
  border-color: var(--color-accent);
  background: var(--color-accent-50);
}

.arch-node-highlight .arch-node-icon {
  color: var(--color-accent);
}

.arch-node-tdx {
  border-color: var(--color-primary);
  position: relative;
}

.arch-tdx-badge {
  position: absolute;
  top: -10px;
  right: 12px;
  background: var(--color-primary);
  color: #ffffff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.arch-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 4px 0;
}

.arch-arrow-label {
  font-size: 0.7rem;
  color: var(--color-text-light);
  font-weight: 500;
}

.arch-layer-client {
  border-color: var(--color-border);
}

.arch-layer-edge {
  border-color: var(--color-accent);
  background: var(--color-accent-50);
}

.arch-layer-cp {
  border-color: var(--color-primary);
  background: var(--color-primary-50);
}

.arch-layer-agents {
  border-color: var(--color-primary);
  background: var(--color-primary-50);
}

/* Trust Model Table */
.trust-model {
  max-width: 800px;
  margin: 0 auto;
}

.trust-model h3 {
  text-align: center;
  margin-bottom: 12px;
}

.trust-model > p {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.trust-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.trust-table thead {
  background: var(--color-bg-dark);
}

.trust-table thead th {
  color: #ffffff;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 14px 20px;
  text-align: left;
}

.trust-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}

.trust-table tbody tr:last-child {
  border-bottom: none;
}

.trust-table tbody tr:hover {
  background: var(--color-bg-alt);
}

.trust-table td {
  padding: 14px 20px;
  font-size: 0.9rem;
  color: var(--color-text);
}

.trust-table td:first-child {
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}

/* ============================================
   TEE Section
   ============================================ */
.tee-section {
  padding: 100px 0;
  background: var(--color-bg-alt);
}

.tee-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.tee-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}

.tee-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.tee-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.tee-card-header h3 {
  font-size: 1.15rem;
}

.tee-card > p {
  color: var(--color-text-secondary);
  font-size: 0.925rem;
  margin-bottom: 20px;
  line-height: 1.7;
}

.tee-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tee-features li {
  position: relative;
  padding-left: 24px;
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.5;
}

.tee-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ============================================
   Security Section
   ============================================ */
.security-section {
  padding: 100px 0;
  background: var(--color-bg);
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.security-item {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.security-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.security-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--color-primary-50);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.security-content h4 {
  margin-bottom: 6px;
  font-size: 1rem;
}

.security-content p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ============================================
   GitHub OIDC Section
   ============================================ */
.oidc-section {
  padding: 100px 0;
  background: var(--color-bg-dark);
  color: #ffffff;
}

.oidc-section .section-header h2 {
  color: #ffffff;
}

.oidc-section .section-header p {
  color: rgba(255, 255, 255, 0.6);
}

.oidc-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.oidc-step {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.oidc-step:last-child {
  margin-bottom: 0;
}

.oidc-step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.oidc-step-content h4 {
  color: #ffffff;
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.oidc-step-content p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  line-height: 1.65;
}

.oidc-step-content code {
  background: rgba(79, 70, 229, 0.2);
  color: var(--color-primary-light);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
}

.oidc-code {
  position: sticky;
  top: 100px;
}

/* ============================================
   Code Blocks
   ============================================ */
.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #1a1b2e;
  padding: 10px 16px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: none;
}

.code-filename {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--font-mono);
}

.code-lang {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.35);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

pre {
  background: #0d0e1a;
  padding: 20px;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-top: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  display: block;
  white-space: pre;
}

.code-key {
  color: var(--color-primary-light);
}

.code-comment {
  color: rgba(255, 255, 255, 0.35);
  font-style: italic;
}

.code-block {
  margin-top: 16px;
}

/* ============================================
   Quick Start Section
   ============================================ */
.quickstart {
  padding: 100px 0;
  background: var(--color-bg-alt);
}

.quickstart-steps {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.qs-step {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.qs-step:hover {
  box-shadow: var(--shadow-lg);
}

.qs-step-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--color-border-light);
}

.qs-step-num {
  flex-shrink: 0;
  background: var(--color-primary);
  color: #ffffff;
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 700;
}

.qs-step-header h3 {
  font-size: 1.15rem;
}

.qs-step-body {
  padding: 24px 28px;
}

.qs-step-body > p {
  color: var(--color-text-secondary);
  font-size: 0.925rem;
  margin-bottom: 4px;
  line-height: 1.7;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, #3730a3 100%);
  text-align: center;
}

.cta-content h2 {
  color: #ffffff;
  font-size: 2rem;
  margin-bottom: 16px;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 32px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-actions .btn-primary {
  background: #ffffff;
  color: var(--color-primary);
  border-color: #ffffff;
}

.cta-actions .btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.9);
  color: var(--color-primary-dark);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-bg-dark);
  padding: 64px 0 0;
  color: rgba(255, 255, 255, 0.6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-bottom: 16px;
}

.footer-logo .logo-text {
  font-size: 1.15rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-links-group h4 {
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}

.footer-links-group ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-group a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.875rem;
  transition: color var(--transition);
}

.footer-links-group a:hover {
  color: #ffffff;
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
}

/* ============================================
   Responsive Styles
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 1.85rem; }

  .hero h1 {
    font-size: 2.75rem;
  }

  .value-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .tee-grid {
    gap: 20px;
  }

  .oidc-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .oidc-code {
    position: static;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* Mobile */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.2rem; }

  .container {
    padding: 0 20px;
  }

  /* Nav */
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 999;
  }

  .nav-links.nav-open {
    transform: translateX(0);
  }

  .nav-links li a {
    font-size: 1.2rem;
    padding: 12px 24px;
  }

  .nav-toggle {
    z-index: 1001;
  }

  /* Hero */
  .hero {
    padding: 120px 0 60px;
    min-height: auto;
  }

  .hero h1 {
    font-size: 2rem;
    line-height: 1.2;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 28px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
    margin-bottom: 40px;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 280px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .hero-stat-divider {
    width: 40px;
    height: 1px;
  }

  /* Value Props */
  .value-props {
    padding: 48px 0;
    margin-top: -20px;
  }

  .value-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .value-card {
    padding: 28px 24px;
  }

  /* How It Works */
  .how-it-works {
    padding: 64px 0;
  }

  .flow-diagram {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .flow-step {
    flex: 0 0 auto;
    width: 100%;
    max-width: 300px;
  }

  .flow-connector {
    transform: rotate(90deg);
    padding: 0;
    margin: 8px 0;
  }

  /* Architecture */
  .architecture {
    padding: 64px 0;
  }

  .arch-nodes {
    flex-direction: column;
    align-items: center;
  }

  .arch-node {
    width: 100%;
    max-width: 280px;
  }

  .trust-table {
    font-size: 0.8rem;
  }

  .trust-table thead th {
    padding: 10px 12px;
    font-size: 0.75rem;
  }

  .trust-table td {
    padding: 10px 12px;
    font-size: 0.8rem;
  }

  /* TEE */
  .tee-section {
    padding: 64px 0;
  }

  .tee-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tee-card {
    padding: 24px;
  }

  /* Security */
  .security-section {
    padding: 64px 0;
  }

  .security-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .security-item {
    padding: 20px;
  }

  /* OIDC */
  .oidc-section {
    padding: 64px 0;
  }

  .oidc-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  pre {
    padding: 16px;
    font-size: 0.8rem;
  }

  pre code {
    font-size: 0.78rem;
  }

  /* Quick Start */
  .quickstart {
    padding: 64px 0;
  }

  .qs-step-header {
    padding: 16px 20px;
  }

  .qs-step-body {
    padding: 20px;
  }

  /* CTA */
  .cta-section {
    padding: 56px 0;
  }

  .cta-content h2 {
    font-size: 1.5rem;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .cta-actions .btn {
    width: 100%;
    max-width: 280px;
  }

  /* Footer */
  .footer {
    padding: 48px 0 0;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-brand p {
    max-width: 100%;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.35rem; }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-badge {
    font-size: 0.75rem;
    padding: 5px 14px;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .section-header p {
    font-size: 1rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .trust-table td:last-child {
    display: none;
  }

  .trust-table thead th:last-child {
    display: none;
  }
}

/* ============================================
   Utility & Animation
   ============================================ */

/* Smooth reveal animation for sections */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Subtle pulse for TDX badges */
@keyframes subtlePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

.arch-tdx-badge {
  animation: subtlePulse 3s ease-in-out infinite;
}

/* Focus styles for accessibility */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .navbar,
  .hero-bg,
  .nav-toggle,
  .cta-section {
    display: none;
  }

  .hero {
    background: none;
    color: var(--color-text);
    padding: 24px 0;
    min-height: auto;
  }

  .hero h1,
  .hero-subtitle {
    color: var(--color-text);
  }

  body {
    font-size: 12pt;
  }

  .container {
    max-width: 100%;
  }
}

/* ============================================
   Selection Colors
   ============================================ */
::selection {
  background: var(--color-primary);
  color: #ffffff;
}

::-moz-selection {
  background: var(--color-primary);
  color: #ffffff;
}

/* ============================================
   Scrollbar Styling
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-alt);
}

::-webkit-scrollbar-thumb {
  background: var(--color-text-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-secondary);
}

/* Code block scrollbar */
pre::-webkit-scrollbar {
  height: 6px;
}

pre::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

pre::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}

pre::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}