/* Versantus Demo Site - Main Styles */

:root {
  /* Versantus Brand Colors - from brand guidelines */
  --versantus-raspberry: #F0146E;
  --versantus-gunmetal: #20212C;
  --versantus-eggplant: #310B37;
  --versantus-amethyst: #A445B2;
  --versantus-cool-grey: #F4F4F4;

  /* Semantic aliases */
  --versantus-primary: #20212C;
  --versantus-secondary: #310B37;
  --versantus-accent: #F0146E;
  --versantus-light: #F4F4F4;
  --versantus-dark: #20212C;

  /* Gradient */
  --versantus-gradient: linear-gradient(45deg, #A445B2 0%, #F0146E 100%);

  /* Oxford Colors (for showcase) */
  --oxford-blue: #002147;
  --heritage-gold: #C4A647;
  --stone: #D5D2CA;

  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

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

  /* Container */
  --container-max: 1200px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

/* Scroll offset for fixed nav */
[id] {
  scroll-margin-top: 90px;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--versantus-dark);
  background: white;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

a {
  color: var(--versantus-accent);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--versantus-secondary);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: var(--versantus-gradient, var(--versantus-accent));
  color: white;
}

.btn-primary:hover {
  background: var(--versantus-raspberry);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(240, 20, 110, 0.4);
}

/* Ensure focus states for WCAG compliance */
.btn:focus,
.btn:focus-visible {
  outline: 3px solid var(--versantus-amethyst);
  outline-offset: 2px;
}

.btn-secondary {
  background: transparent;
  color: var(--versantus-primary);
  border: 2px solid var(--versantus-primary);
}

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

.btn-ghost {
  background: transparent;
  color: white;
  border: 2px solid white;
}

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

/* Section Styles */
.section {
  padding: var(--spacing-2xl) 0;
}

.section-dark {
  background: var(--versantus-primary);
  color: white;
}

.section-light {
  background: var(--versantus-light);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-title h2 {
  margin-bottom: var(--spacing-sm);
  color: var(--versantus-primary);
}

.section-dark .section-title h2 {
  color: white;
}


/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: white;
  border-bottom: 1px solid #e2e8f0;
  z-index: 1000;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--versantus-primary);
}

.nav-logo img {
  height: 40px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-links a {
  color: var(--versantus-dark);
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--versantus-accent);
}

.nav-cta {
  display: flex;
  gap: var(--spacing-sm);
}

/* Hero Section */
.hero {
  padding-top: 150px;
  padding-bottom: var(--spacing-2xl);
  background: linear-gradient(135deg, var(--versantus-primary) 0%, var(--versantus-secondary) 100%);
  color: white;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.hero-text {
  position: sticky;
  top: 100px;
}

.hero-text h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
}

.hero-text .subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.hero-stats {
  display: flex;
  gap: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255,255,255,0.2);
}

.hero-stat {
  text-align: center;
}

.hero-stat .number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--versantus-accent);
  font-family: var(--font-heading);
}

.hero-stat .label {
  font-size: 0.875rem;
  opacity: 0.8;
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 25px 50px rgba(0,0,0,0.3);
}

/* Cards */
.card {
  background: white;
  border-radius: 12px;
  padding: var(--spacing-lg);
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.1);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--versantus-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: var(--versantus-accent);
  font-size: 1.5rem;
}

.card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--versantus-primary);
}

.card p {
  color: #64748b;
  font-size: 0.95rem;
}

/* Feature List */
.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.feature-list li::before {
  content: "✓";
  color: var(--versantus-accent);
  font-weight: bold;
  flex-shrink: 0;
}

/* Testimonials */
.testimonial {
  background: white;
  border-radius: 12px;
  padding: var(--spacing-lg);
  border-left: 4px solid var(--versantus-accent);
}

.testimonial-quote {
  font-size: 1.125rem;
  font-style: italic;
  margin-bottom: var(--spacing-md);
  color: var(--versantus-dark);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.testimonial-author img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}

.testimonial-author-info strong {
  display: block;
  color: var(--versantus-primary);
}

.testimonial-author-info span {
  font-size: 0.875rem;
  color: #64748b;
}

/* Capabilities Grid */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.capability-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: var(--spacing-lg);
  text-align: center;
  transition: transform 0.3s ease, background 0.3s ease;
}

.capability-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.1);
}

.capability-icon {
  width: 64px;
  height: 64px;
  background: var(--versantus-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 1.5rem;
  color: var(--versantus-dark);
}

.capability-card h3 {
  color: white;
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
}

.capability-card p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Hosting Grid */
.hosting-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-xl);
}

.hosting-card {
  background: white;
  border-radius: 16px;
  padding: var(--spacing-xl);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
}

.hosting-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--versantus-primary), var(--versantus-accent));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 2rem;
  color: white;
}

.hosting-card h3 {
  color: var(--versantus-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.hosting-card > p {
  color: #64748b;
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.hosting-features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.hosting-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
  color: var(--versantus-dark);
}

.hosting-features li i {
  color: var(--versantus-accent);
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  .hosting-grid {
    grid-template-columns: 1fr;
  }

  .capabilities-grid {
    grid-template-columns: 1fr;
  }
}

/* ICP Experience Selector */
.icp-selector-section {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.icp-selector {
  max-width: 1000px;
  margin: 0 auto;
}

.icp-selector h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--versantus-primary);
  margin-bottom: var(--spacing-lg);
}

.icp-tabs {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.icp-tab {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 2px solid var(--versantus-primary);
  background: white;
  color: var(--versantus-primary);
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.icp-tab:hover {
  background: var(--versantus-primary);
  color: white;
}

.icp-tab.active {
  background: var(--versantus-primary);
  color: white;
}

.icp-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.icp-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.icp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.icp-text h3 {
  font-size: 1.75rem;
  color: var(--versantus-primary);
  margin-bottom: var(--spacing-md);
}

.icp-text > p {
  color: #64748b;
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.icp-benefits {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-lg) 0;
}

.icp-benefits li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
  color: var(--versantus-dark);
}

.icp-benefits li i {
  color: var(--versantus-accent);
  margin-top: 4px;
}

.icp-visual img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
  .icp-grid {
    grid-template-columns: 1fr;
  }

  .icp-visual {
    order: -1;
  }

  .icp-tabs {
    flex-direction: column;
    align-items: center;
  }

  .icp-tab {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }
}

/* Footer */
.footer {
  background: var(--versantus-dark);
  color: white;
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand p {
  opacity: 0.7;
  margin-top: var(--spacing-sm);
}

.footer h4 {
  color: var(--versantus-accent);
  margin-bottom: var(--spacing-md);
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: var(--spacing-xs);
}

.footer ul a {
  color: rgba(255,255,255,0.7);
}

.footer ul a:hover {
  color: var(--versantus-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  opacity: 0.6;
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
  }
  .hero-text h1 {
    font-size: 2.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
}


.section-title p {
  font-size: 1.125rem;
  color: #64748b;
  max-width: 600px;
  margin: 0 auto;
}

.section-dark .section-title p {
  color: rgba(255,255,255,0.8);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

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

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
}

/* ===== WCAG 2.1 AA Compliance ===== */

/* Focus states for all interactive elements */
a:focus,
a:focus-visible,
button:focus,
button:focus-visible,
input:focus,
input:focus-visible,
select:focus,
select:focus-visible,
textarea:focus,
textarea:focus-visible {
  outline: 3px solid var(--versantus-amethyst, #A445B2);
  outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--versantus-gunmetal);
  color: white;
  padding: 0.75rem 1.5rem;
  z-index: 10000;
  transition: top 0.3s ease;
}

.skip-link:focus {
  top: 0;
}

/* Ensure minimum touch target size (44x44px) */
.btn,
.nav-links a,
.demo-page-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn-primary {
    border: 2px solid currentColor;
  }

  .card {
    border: 2px solid var(--versantus-gunmetal);
  }
}

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

/* Tablet breakpoint */
@media (max-width: 992px) {
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .hero-stat {
    flex: 1 1 calc(33% - 1rem);
    min-width: 100px;
  }
}

/* Mobile breakpoint */
@media (max-width: 768px) {
  .section {
    padding: 3rem 0;
  }

  .hero {
    padding-top: 5rem;
    padding-bottom: 3rem;
  }

  .hero-cta {
    flex-direction: column;
    gap: 0.75rem;
  }

  .hero-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-stat {
    text-align: center;
  }

  .nav-inner {
    padding: 0 1rem;
  }

  .card {
    padding: 1.5rem;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

  .hero-stat .number {
    font-size: 2rem;
  }

  .btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.9375rem;
  }
}