/* ==========================================================================
   Unbound Automotive - Global Styles
   Engineering-first design system
   Version 3.0 - Complete Overhaul
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Colors - Refined palette */
  --bg-primary: #06080c;
  --bg-secondary: #0a0d12;
  --bg-elevated: #0d1117;
  --bg-card: rgba(10, 14, 22, 0.8);
  --text-primary: #f0f4ff;
  --text-secondary: #a8b2c8;
  --text-muted: #5c6578;
  --line: rgba(255, 255, 255, 0.06);
  --line-hover: rgba(255, 255, 255, 0.12);
  --surface: rgba(255, 255, 255, 0.025);
  --surface-hover: rgba(255, 255, 255, 0.05);
  --glow-primary: rgba(140, 180, 255, 0.08);
  --glow-secondary: rgba(255, 255, 255, 0.04);
  --accent: #d4e0ff;

  /* Layout */
  --max-width: 1140px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 20px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 80px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 999px;

  /* Typography Scale */
  --font-size-xs: 12px;
  --font-size-sm: 13px;
  --font-size-base: 15px;
  --font-size-lg: 17px;
  --font-size-xl: 20px;
  --font-size-2xl: 26px;
  --font-size-3xl: 36px;
  --font-size-4xl: 48px;

  /* Transitions */
  --transition-fast: 120ms ease;
  --transition-base: 200ms ease;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* --------------------------------------------------------------------------
   Accessibility - Skip Link
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: var(--bg-primary);
  padding: 8px 16px;
  text-decoration: none;
  font-weight: 600;
  z-index: 1000;
  border-radius: 0 0 4px 0;
}

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

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

html {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100%;
  margin: 0 auto;
  color: var(--text-primary);
  background: var(--bg-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: var(--font-size-base);
  line-height: 1.6;
  letter-spacing: 0.2px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------------------------------------
   Seamless Background System - Fixed blending
   -------------------------------------------------------------------------- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(ellipse 1200px 800px at 70% 10%, var(--glow-primary), transparent 60%),
    radial-gradient(ellipse 900px 600px at 25% 80%, var(--glow-secondary), transparent 50%),
    radial-gradient(ellipse 600px 400px at 90% 60%, rgba(100, 140, 200, 0.03), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* Technical Grid - Subtle, seamless */
.grid {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 120% 100% at 50% 20%, rgba(0, 0, 0, 0.6), transparent 70%);
  pointer-events: none;
  opacity: 0.4;
  z-index: 0;
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
header {
  position: relative;
  z-index: 100;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.brand:hover {
  opacity: 0.85;
}

.logo {
  height: 36px;
  width: 36px;
  object-fit: cover;
  object-position: 50% 18%;
  border-radius: 8px;
}

nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link,
.nav-link-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-decoration: none;
  transition:
    transform 180ms var(--ease),
    background 180ms var(--ease),
    color 180ms var(--ease),
    border-color 180ms var(--ease);
}

.nav-link:hover,
.nav-link-pill:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.14);
  transform: translateY(-1px);
}

.nav-link[aria-current="page"],
.nav-link-pill[aria-current="page"] {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
}

.nav-link:focus-visible,
.nav-link-pill:focus-visible {
  outline: 2px solid rgba(242, 245, 255, 0.35);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   Container & Layout
   -------------------------------------------------------------------------- */
.container {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-2xl);
}

/* --------------------------------------------------------------------------
   Hero Section (Home Page)
   -------------------------------------------------------------------------- */
.hero-section {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--spacing-xl);
  align-items: start;
  margin-bottom: var(--spacing-2xl);
}

.hero-content h1 {
  font-size: clamp(var(--font-size-3xl), 4.5vw, var(--font-size-4xl));
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  line-height: 1.7;
  max-width: 56ch;
  margin-bottom: var(--spacing-lg);
}

.principles {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
}

.principle-tag {
  padding: var(--spacing-xs) 14px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: rgba(240, 244, 255, 0.8);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  box-shadow: 
    0 20px 50px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.03) inset;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  opacity: 0.9;
}

.image-credit {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 10px 14px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
}

.image-credit a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}

.image-credit a:hover {
  border-bottom-color: rgba(255, 255, 255, 0.5);
}

/* --------------------------------------------------------------------------
   Page Hero Section (About/Building/Blog/Contact)
   -------------------------------------------------------------------------- */
.page-hero {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: var(--spacing-xl);
  align-items: center;
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--line);
}

.page-hero-content h1 {
  font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-4xl));
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
}

.page-hero-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  line-height: 1.7;
}

.page-hero-logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-logo-large {
  width: 100%;
  max-width: 220px;
  height: auto;
  opacity: 0.92;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn-primary,
.btn-secondary,
.btn-tertiary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 20px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  transition: 
    transform var(--transition-fast), 
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  cursor: pointer;
  border: none;
}

.btn-primary {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line-hover);
}

.btn-tertiary {
  color: var(--text-secondary);
  background: transparent;
  padding: 0;
  border: none;
  font-weight: 500;
}

.btn-tertiary:hover {
  color: var(--text-primary);
}

.btn-large {
  padding: 16px 28px;
  font-size: var(--font-size-base);
}

.link-arrow {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   Preview Section (Home Page)
   -------------------------------------------------------------------------- */
.preview-section {
  margin-bottom: var(--spacing-2xl);
  margin-top: var(--spacing-xl);
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.preview-section h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.preview-intro {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.7;
  max-width: 90ch;
  margin-bottom: var(--spacing-lg);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.preview-card {
  padding: var(--spacing-lg) var(--spacing-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  transition: 
    border-color var(--transition-base), 
    transform var(--transition-fast),
    box-shadow var(--transition-base);
}

.preview-card:hover {
  border-color: var(--line-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card-number {
  display: inline-block;
  padding: 4px 10px;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.preview-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.preview-card p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   About Preview (Home Page) & Section Cards
   -------------------------------------------------------------------------- */
.about-preview {
  padding: var(--spacing-lg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
}

.about-preview h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
}

.about-lead {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.75;
  max-width: 90ch;
  margin-bottom: var(--spacing-md);
}

/* --------------------------------------------------------------------------
   Content Body - Single Column (Improved Readability)
   -------------------------------------------------------------------------- */
.content-body-single {
  max-width: 100%;
}

.content-body-single p {
  color: var(--text-secondary);
  margin-bottom: 1.5em;
  line-height: 1.75;
  max-width: 72ch;
}

.content-body-single h2 {
  font-size: var(--font-size-xl);
  margin: var(--spacing-2xl) 0 var(--spacing-md);
  font-weight: 600;
  color: var(--text-primary);
}

.content-body-single h2:first-of-type {
  margin-top: 0;
}

.content-body-single h3 {
  font-size: var(--font-size-lg);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
  font-weight: 600;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   Content Body - Wide Layout (for principle cards)
   -------------------------------------------------------------------------- */
.content-body-wide {
  max-width: 100%;
}

.content-body-wide > p {
  color: var(--text-secondary);
  margin-bottom: 1.5em;
  line-height: 1.75;
  max-width: 80ch;
}

.content-body-wide h2 {
  font-size: var(--font-size-xl);
  margin: var(--spacing-2xl) 0 var(--spacing-md);
  font-weight: 600;
  color: var(--text-primary);
}

.content-body-wide h2:first-of-type {
  margin-top: 0;
}

/* --------------------------------------------------------------------------
   Principle Cards - Grid Layout
   -------------------------------------------------------------------------- */
.principle-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0 var(--spacing-xl);
}

.principle-card {
  padding: var(--spacing-lg) var(--spacing-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  transition: border-color var(--transition-base);
}

.principle-card:hover {
  border-color: var(--line-hover);
}

.principle-card h3 {
  font-size: var(--font-size-base);
  margin: 0 0 var(--spacing-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.principle-card p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.65;
  margin: 0;
}

.principle-card p + p {
  margin-top: var(--spacing-sm);
}

/* Single full-width principle card */
.principle-card-full {
  grid-column: 1 / -1;
}

/* --------------------------------------------------------------------------
   Phase Cards (Building page)
   -------------------------------------------------------------------------- */
.phase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.phase-card {
  padding: var(--spacing-lg) var(--spacing-md);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
}

.phase-card h3 {
  font-size: var(--font-size-base);
  margin: 0 0 var(--spacing-xs);
  font-weight: 600;
  color: var(--text-primary);
}

.phase-card p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.65;
  margin: 0;
}

/* --------------------------------------------------------------------------
   Contact Form Styles
   -------------------------------------------------------------------------- */
.contact-form {
  max-width: 560px;
  margin: var(--spacing-xl) 0;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group label .required {
  color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: var(--font-size-base);
  font-family: inherit;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: 
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%235c6578' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-group select option {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
  line-height: 1.6;
}

.form-submit {
  margin-top: var(--spacing-md);
}

.form-submit button {
  width: 100%;
}

.form-privacy {
  margin-top: var(--spacing-md);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Contact Page Specifics
   -------------------------------------------------------------------------- */
.contact-cta {
  margin: var(--spacing-xl) 0;
}

.contact-disclaimer {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  max-width: 68ch;
}

/* --------------------------------------------------------------------------
   Blog Grid
   -------------------------------------------------------------------------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.blog-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: 
    border-color var(--transition-base), 
    transform var(--transition-fast),
    box-shadow var(--transition-base);
}

.blog-card:hover {
  border-color: var(--line-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.blog-card-content {
  padding: var(--spacing-lg) var(--spacing-md);
}

.blog-meta {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.blog-card p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   Blog Article Page
   -------------------------------------------------------------------------- */
.content-header {
  max-width: 72ch;
  margin: 0 auto var(--spacing-xl);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.content-header .blog-meta {
  margin: 0;
}

.content-header h1 {
  margin: 0;
  font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-3xl));
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.content-header .subtitle {
  max-width: 60ch;
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  line-height: 1.65;
}

.content-body {
  max-width: 72ch;
  margin: 0 auto;
}

.content-body p {
  color: var(--text-secondary);
  margin-bottom: 1.5em;
  line-height: 1.75;
}

.content-body h2 {
  font-size: var(--font-size-xl);
  margin: 3rem 0 var(--spacing-md);
  font-weight: 600;
}

.content-body h3 {
  font-size: var(--font-size-lg);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
  font-weight: 600;
}

.content-body ul,
.content-body ol {
  color: var(--text-secondary);
  margin: 0 0 1.5em 20px;
  line-height: 1.75;
}

.content-body li {
  margin-bottom: 0.5em;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
footer {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: var(--spacing-2xl) auto 0;
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--line);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  height: 48px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  border-radius: 0;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  max-width: 40ch;
  margin-top: var(--spacing-xs);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.footer-column h4 {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.footer-column a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--text-primary);
}

.footer-legal {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--line);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.footer-legal p {
  margin-bottom: 6px;
}

.image-credits {
  font-size: 11px;
  color: rgba(168, 178, 200, 0.5);
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .preview-grid {
    grid-template-columns: 1fr;
  }

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

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

  .page-hero {
    grid-template-columns: 1fr 200px;
    gap: var(--spacing-lg);
  }

  .page-logo-large {
    max-width: 180px;
  }
}

@media (max-width: 900px) {
  .hero-section {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .hero-image {
    order: -1;
    max-width: 400px;
  }

  .page-hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .page-hero-logo {
    order: -1;
    margin-bottom: var(--spacing-md);
  }

  .page-logo-large {
    max-width: 160px;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  nav {
    flex-wrap: wrap;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  nav {
    width: 100%;
    justify-content: flex-start;
  }

  .hero-content h1 {
    font-size: var(--font-size-3xl);
  }

  .page-hero-content h1 {
    font-size: var(--font-size-2xl);
  }

  .page-logo-large {
    max-width: 140px;
  }

  .principles {
    gap: 6px;
  }

  .principle-tag {
    font-size: 11px;
    padding: 6px 10px;
  }

  .page-hero {
    padding-bottom: var(--spacing-lg);
  }

  .contact-form {
    max-width: 100%;
  }
}

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

:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.4);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}