/* ============================================
   ARK Cognitive Solutions - Design System
   ============================================ */

/* Color scheme - light by default */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: rgba(59, 130, 246, 0.1);
  --gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 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);
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;

  /* OVHcloud-inspired blues */
  --blue-navy: #000d4a;
  --blue-royal: #0050d8;
  --blue-bright: #00b4d8;
  --blue-gradient: linear-gradient(135deg, #000d4a 0%, #0050d8 100%);
}

/* Dark mode */
[data-theme="dark"] {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a24;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #60a5fa;
  --accent-hover: #93c5fd;
  --accent-light: rgba(96, 165, 250, 0.15);
  --border-color: #1e293b;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
}

/* ============================================
   Base Styles
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-feature-settings: 'cv11', 'ss01';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 16px;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.75rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 1.25rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

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

a:hover {
  color: var(--accent-hover);
}

/* ============================================
   Layout
   ============================================ */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 2.5rem 0;
  position: relative;
}

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
}

.nav-logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  position: relative;
  padding: 0.5rem 0;
}

.logo-short {
  display: none;
}

.logo-full {
  display: inline;
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-logo.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--text-primary);
  font-weight: 600;
}

.nav-link.active::after {
  width: 100%;
  height: 3px;
  background: var(--text-primary);
}

.nav-link.secondary {
  color: var(--text-muted);
  font-weight: 400;
}

.nav-link.secondary:hover {
  color: var(--text-secondary);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 8px;
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.theme-toggle:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  min-height: auto;
  display: flex;
  align-items: center;
  padding-top: 48px; /* Account for fixed nav */
  padding-bottom: 2.5rem;
  background: var(--blue-gradient);
  position: relative;
  overflow: hidden;
}

/* Decorative geometric shapes */
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 80, 216, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  max-width: 600px;
  padding: 3rem 0 1.5rem;
  position: relative;
  z-index: 1;
}

.hero-content-full {
  max-width: 720px;
  padding: 4rem 0 2rem;
}

.hero-content-full h1 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.hero-content-full .hero-tagline {
  font-size: clamp(1rem, 1.75vw, 1.125rem);
  max-width: 620px;
}

.hero h1 {
  margin-bottom: 0.75rem;
  color: #ffffff;
}

.hero-tagline {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: rgba(255, 255, 255, 0.9);
  max-width: 680px;
  margin-bottom: 1.5rem;
  line-height: 1.6;
  font-weight: 400;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  background: #ffffff;
  color: var(--blue-navy);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: 8px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.hero-cta:hover {
  color: var(--blue-navy);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.4);
}

.hero-cta svg {
  transition: transform var(--transition-fast);
}

.hero-cta:hover svg {
  transform: translateX(4px);
}

/* ============================================
   Principles Section
   ============================================ */

.principles {
  background-color: var(--bg-secondary);
  padding: 2rem 0;
}

.principles::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.section-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.section-header h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.25rem;
}

.section-header p {
  color: var(--text-muted);
  max-width: 550px;
  margin: 0 auto;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
}

.principle-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.principle-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  border-color: var(--accent);
}

.principle-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-gradient);
  border-radius: 12px;
  margin-bottom: 1rem;
  color: #ffffff;
}

.principle-icon svg {
  width: 24px;
  height: 24px;
  stroke: #ffffff;
}

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

.principle-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0;
  line-height: 1.6;
}

/* ============================================
   What We Build Section
   ============================================ */

.services {
  background-color: var(--bg-primary);
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.75rem;
}

.service-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  border-color: var(--accent);
}

.service-card .service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-gradient);
  border-radius: 12px;
  margin-bottom: 1rem;
  color: #ffffff;
}

.service-card .service-icon svg {
  width: 24px;
  height: 24px;
  stroke: #ffffff;
}

.service-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.service-card > p {
  margin-bottom: 0.625rem;
  font-size: 0.875rem;
  line-height: 1.55;
}

.service-examples {
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-color);
}

.service-examples span {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.service-examples ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.service-examples li {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 0.0625rem 0;
  padding-left: 0.875rem;
  position: relative;
  line-height: 1.4;
}

.service-examples li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--text-muted);
  font-size: 0.625rem;
}

/* Legacy service-item styles for How We Work */
.services-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.service-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.5rem;
  background-color: var(--bg-secondary);
  border-radius: 12px;
  border: 1px solid transparent;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.service-item:hover {
  border-color: var(--border-color);
  background-color: var(--bg-tertiary);
}

.service-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.service-content h3 {
  margin-bottom: 0.5rem;
}

.service-content p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* ============================================
   Who This Is For Section
   ============================================ */

.audience-grid {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  max-width: 600px;
  margin: 0 auto;
}

.audience-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.625rem 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.audience-item:hover {
  border-color: var(--accent);
  transform: translateX(3px);
}

.audience-item svg {
  flex-shrink: 0;
  color: var(--accent);
  width: 16px;
  height: 16px;
}

.audience-item span {
  font-size: 0.875rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* Red X styling for "What We Say No To" section */
.audience-item--no svg {
  color: #ef4444;
}

.audience-item--no:hover {
  border-color: #ef4444;
}

/* Audience items on blue background */
.section-blue .audience-item {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.section-blue .audience-item:hover {
  border-color: rgba(255, 255, 255, 0.4);
}

.section-blue .audience-item svg {
  color: #ffffff;
}

.section-blue .audience-item span {
  color: #ffffff;
}

.section-blue .audience-item--no svg {
  color: #ff6b6b;
}

.section-blue .audience-item--no:hover {
  border-color: #ff6b6b;
}

/* ============================================
   How We Work Section
   ============================================ */

.work-process {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.625rem;
  max-width: 900px;
  margin: 0 auto;
}

.work-item {
  display: flex;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.work-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.work-number {
  flex-shrink: 0;
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  letter-spacing: -0.02em;
}

.work-content h3 {
  font-size: 0.9375rem;
  margin-bottom: 0.125rem;
}

.work-content p {
  font-size: 0.8125rem;
  margin-bottom: 0;
  color: var(--text-secondary);
  line-height: 1.5;
}

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

/* ============================================
   Engagement Steps Section (matches work-process)
   ============================================ */

.engagement-steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.625rem;
  max-width: 900px;
  margin: 0 auto;
}

.engagement-step {
  display: flex;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.engagement-step:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.step-number {
  flex-shrink: 0;
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  letter-spacing: -0.02em;
}

.step-content h3 {
  font-size: 0.9375rem;
  margin-bottom: 0.125rem;
}

.step-content p {
  font-size: 0.8125rem;
  margin-bottom: 0;
  color: var(--text-secondary);
  line-height: 1.5;
}

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

/* ============================================
   Deliverables Grid Section (What You Get)
   Matches audience-grid style - single column, centered
   ============================================ */

.deliverables-grid {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  max-width: 600px;
  margin: 0 auto;
}

.deliverable-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.625rem 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.deliverable-item:hover {
  border-color: var(--accent);
  transform: translateX(3px);
}

.deliverable-item svg {
  flex-shrink: 0;
  color: #22c55e;
  width: 16px;
  height: 16px;
}

.deliverable-item span {
  font-size: 0.875rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* ============================================
   Blue Section (OVHcloud-style alternating)
   ============================================ */

.section-blue {
  background: var(--blue-gradient);
  color: #ffffff;
}

.section-blue h2,
.section-blue h3,
.section-blue p,
.section-blue .section-header p {
  color: #ffffff;
}

.section-blue .section-header p {
  color: rgba(255, 255, 255, 0.85);
}

.section-blue .service-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.section-blue .service-card h3 {
  color: #ffffff;
}

.section-blue .service-icon {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.section-blue .service-icon svg {
  stroke: #ffffff;
}

.section-blue .service-examples {
  color: rgba(255, 255, 255, 0.7);
  border-top-color: rgba(255, 255, 255, 0.2);
}

.section-blue .service-examples span {
  color: rgba(255, 255, 255, 0.6);
}

.section-blue .service-examples li {
  color: rgba(255, 255, 255, 0.8);
}

/* About cards on blue background */
.section-blue .about-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.section-blue .about-card h3 {
  color: #ffffff;
}

.section-blue .about-card p {
  color: rgba(255, 255, 255, 0.85);
}

/* Callouts on blue background */
.section-blue .callout {
  background: rgba(255, 255, 255, 0.1);
  border-left-color: rgba(255, 255, 255, 0.5);
}

.section-blue .callout p {
  color: rgba(255, 255, 255, 0.9);
}

.section-blue .callout-yes {
  background: rgba(34, 197, 94, 0.2);
  border-left-color: #22c55e;
}

.section-blue .callout-no {
  background: rgba(239, 68, 68, 0.2);
  border-left-color: #ef4444;
}

/* Note text on blue section */
.section-blue-note {
  color: rgba(255, 255, 255, 0.7);
}

/* Work items on blue background */
.section-blue .work-item {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.section-blue .work-item:hover {
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.section-blue .work-number {
  background: #ffffff;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-blue .work-content h3 {
  color: #ffffff;
}

.section-blue .work-content p {
  color: rgba(255, 255, 255, 0.8);
}

/* Principle cards on blue background */
.section-blue .principle-card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.section-blue .principle-card h3 {
  color: #ffffff;
}

.section-blue .principle-card p {
  color: rgba(255, 255, 255, 0.85);
}

.section-blue .principle-icon {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.section-blue .principle-icon svg {
  stroke: #ffffff;
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
  background: var(--blue-gradient);
  color: #ffffff;
  text-align: center;
  padding: 2.5rem 0;
  margin-top: 0;
}

.cta-section h2 {
  color: #ffffff;
  margin-bottom: 0.25rem;
  font-size: clamp(1.5rem, 3vw, 1.75rem);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
  max-width: 450px;
  margin: 0 auto 1rem;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background-color: #ffffff;
  color: var(--blue-navy);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: 6px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.cta-button:hover {
  color: var(--blue-navy);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
}

.cta-button svg {
  transition: transform var(--transition-fast);
}

.cta-button:hover svg {
  transform: translateX(4px);
}

/* ============================================
   Footer
   ============================================ */

footer {
  background-color: var(--blue-navy);
  border-top: none;
  padding: 1.25rem 0 1rem;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.25rem;
}

.footer-content p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.6875rem;
  margin-bottom: 0;
  letter-spacing: 0.01em;
}

.footer-content p:first-child {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.8);
}

.footer-email {
  color: var(--blue-bright);
  font-weight: 500;
  font-size: 0.8125rem;
  margin-top: 0.125rem;
}

.footer-tagline {
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0.5rem;
  padding-top: 0.625rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  white-space: nowrap;
}

/* ============================================
   About Page - Hero
   ============================================ */

.hero-sm {
  min-height: auto;
  padding: 4rem 0 2rem;
}

.hero-sm h1 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
  color: #ffffff;
}

.hero-subtitle {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.625rem;
  font-weight: 400;
}

.hero-sm .hero-tagline {
  font-size: clamp(1rem, 1.75vw, 1.125rem);
  margin-bottom: 1.5rem;
  line-height: 1.6;
  max-width: 620px;
  color: rgba(255, 255, 255, 0.9);
}

/* ============================================
   About Page - Content Sections
   ============================================ */

.content-section {
  padding: 2rem 0;
  position: relative;
}

.content-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.content-section:nth-child(even) {
  background-color: var(--bg-secondary);
}

.content-section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.75rem;
}

.content-section > .container > p {
  max-width: 640px;
  font-size: 0.9375rem;
  line-height: 1.65;
}

.content-section > .container > p + p {
  margin-top: 0.625rem;
}

.section-summary {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  padding-bottom: 0.625rem;
  border-bottom: 1px solid var(--border-color);
  max-width: 640px;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.875rem;
}

/* Approach / Process Steps */
.approach-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  max-width: 850px;
}

.approach-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: border-color var(--transition-fast);
}

.approach-item:hover {
  border-color: var(--accent);
}

.approach-number {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.75rem;
  border-radius: 6px;
}

.approach-item p {
  margin-bottom: 0;
  padding-top: 2px;
  font-size: 0.875rem;
  line-height: 1.5;
}

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

/* Approach items on blue background */
.section-blue .approach-item {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.section-blue .approach-item:hover {
  border-color: rgba(255, 255, 255, 0.4);
}

.section-blue .approach-number {
  background: #ffffff;
  color: var(--blue-navy);
}

.section-blue .approach-item p {
  color: rgba(255, 255, 255, 0.9);
}

/* Callout / Highlight Box */
.callout {
  background-color: var(--accent-light);
  border-left: 2px solid var(--accent);
  padding: 0.5rem 0.75rem;
  margin-top: 0.5rem;
  border-radius: 0 4px 4px 0;
}

.callout p {
  margin-bottom: 0;
  font-size: 0.75rem;
  color: var(--text-primary);
  font-style: normal;
  line-height: 1.45;
}

.callout-yes {
  background-color: rgba(34, 197, 94, 0.1);
  border-left-color: #22c55e;
}

.callout-no {
  background-color: rgba(239, 68, 68, 0.08);
  border-left-color: #ef4444;
}

[data-theme="dark"] .callout-yes {
  background-color: rgba(34, 197, 94, 0.15);
}

[data-theme="dark"] .callout-no {
  background-color: rgba(239, 68, 68, 0.12);
}

/* About page card enhancements */
.about-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.25rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.about-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.about-card h3 {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.about-card h3 svg {
  color: var(--accent);
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.about-card > p {
  margin-bottom: 0.5rem;
  line-height: 1.55;
  font-size: 0.875rem;
}

.about-card ul {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--border-color);
  padding-top: 0.5rem;
}

.about-card li {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  padding: 0.125rem 0;
  padding-left: 1rem;
  position: relative;
}

.about-card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ============================================
   Animations
   ============================================ */

/* Content visible by default - animations are progressive enhancement */
.reveal {
  opacity: 1;
  transform: translateY(0);
}

/* Only animate if JS has loaded and added the animate class */
.reveal.animate {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animation for cards */
.principles-grid .principle-card.animate:nth-child(1) { transition-delay: 0ms; }
.principles-grid .principle-card.animate:nth-child(2) { transition-delay: 100ms; }
.principles-grid .principle-card.animate:nth-child(3) { transition-delay: 200ms; }

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

@media (max-width: 768px) {
  section {
    padding: 2rem 0;
  }

  .hero {
    min-height: auto;
    padding: 3.5rem 0 1.5rem;
  }

  .hero-content {
    padding: 1rem 0;
    max-width: 100%;
  }

  .hero-content-full {
    padding: 2rem 0 1.5rem;
  }

  .nav .container {
    height: 44px;
  }

  .logo-short {
    display: inline;
  }

  .logo-full {
    display: none;
  }

  .nav-links {
    gap: 0.5rem;
  }

  .nav-link::after {
    display: none;
  }

  .section-header {
    text-align: left;
  }

  .section-header p {
    margin: 0;
  }

  .section-header {
    margin-bottom: 1.25rem;
  }

  .principles-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .service-item {
    flex-direction: column;
    gap: 0.5rem;
  }

  .cta-section {
    padding: 2rem 0;
  }

  footer {
    padding: 1rem 0 0.75rem;
  }

  .footer-tagline {
    white-space: normal;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

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

/* ============================================
   Reduced Motion
   ============================================ */

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}