:root {
  --space-4: 4px;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-24: 24px;
  --space-40: 40px;
  --space-64: 64px;
  
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #334155;
  --color-text-light: #64748b;
  --color-heading: #0f172a;
  
  --color-accent: #4f46e5;
  --color-accent-hover: #4338ca;
  --color-accent-light: #e0e7ff;
  
  --color-border: #e2e8f0;
  --color-error: #ef4444;
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.08);
  
  --font-main: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

html {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-heading);
  line-height: 1.2;
  font-weight: 700;
  overflow-wrap: anywhere;
  min-width: 0;
}

h1 { font-size: 2.5rem; margin-bottom: var(--space-24); }
h2 { font-size: 2rem; margin-bottom: var(--space-24); }
h3 { font-size: 1.5rem; margin-bottom: var(--space-16); }
h4 { font-size: 1.25rem; margin-bottom: var(--space-16); }

p, ul, ol, figure, table {
  margin-bottom: var(--space-24);
  min-width: 0;
}

ul, ol {
  padding-left: var(--space-24);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

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

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-24);
}

.section {
  padding: var(--space-64) 0;
}

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

/* Header */
.site-header {
  height: 64px;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  position: relative;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-heading);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.brand-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  gap: var(--space-24);
  align-items: center;
}

.nav-link {
  color: var(--color-text);
  font-weight: 500;
  overflow-wrap: anywhere;
}

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

.header-cta {
  display: none;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-8);
  color: var(--color-heading);
}

.mobile-toggle-icon {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

@media (min-width: 768px) {
  .header-cta {
    display: inline-flex;
  }
}

@media (max-width: 767px) {
  .site-header {
    height: 52px;
  }
  .mobile-toggle {
    display: block;
  }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    flex-direction: column;
    padding: var(--space-24);
    gap: var(--space-24);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .main-nav.is-visible {
    display: flex;
  }
  .main-nav .header-cta {
    display: inline-flex;
    align-self: flex-start;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-surface);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-surface);
}

.btn-secondary {
  background-color: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

.btn-text {
  background: transparent;
  color: var(--color-text-light);
  padding: 10px 0;
}

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

/* Hero Section */
.hero {
  padding: var(--space-64) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-bg) 100%);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--space-24);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  max-width: 800px;
  margin: 0 auto var(--space-40);
}

/* Glass Overlay Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-40);
}

.grid-child {
  min-width: 0;
}

.card {
  position: relative;
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 360px;
  text-decoration: none;
  background-color: var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

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

.card-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-img {
  transform: scale(1.05);
}

.card-panel {
  position: absolute;
  bottom: var(--space-16);
  left: var(--space-16);
  right: var(--space-16);
  background-color: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--space-24);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.8);
  color: var(--color-heading);
}

.card-tag {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-8);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-8);
  color: var(--color-heading);
}

.card-desc {
  font-size: 0.95rem;
  color: var(--color-text);
  margin: 0;
}

/* Split Layout */
.split-layout {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-64);
  align-items: center;
}

.split-text, .split-media {
  flex: 1;
  min-width: 280px;
}

.split-media img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* Content Pages */
.page-header {
  background-color: var(--color-surface);
  padding: var(--space-64) 0 var(--space-40);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-40);
}

.content-area {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--color-surface);
  padding: var(--space-40);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-64);
}

.stat-block {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-24);
  background: var(--color-bg);
  padding: var(--space-24);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-24);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

/* Tables */
.table-wrapper {
  overflow-x: auto;
  margin-bottom: var(--space-24);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-border);
}

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

tr:last-child td {
  border-bottom: none;
}

/* Forms */
.form-group {
  margin-bottom: var(--space-24);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-8);
  color: var(--color-heading);
}

.form-control {
  width: 100%;
  padding: 12px var(--space-16);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  background-color: var(--color-surface);
  color: var(--color-text);
  transition: border-color 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.form-control.is-invalid {
  border-color: var(--color-error);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.static-map {
  width: 100%;
  height: 300px;
  background: linear-gradient(45deg, #e2e8f0 25%, #cbd5e1 25%, #cbd5e1 50%, #e2e8f0 50%, #e2e8f0 75%, #cbd5e1 75%, #cbd5e1 100%);
  background-size: 20px 20px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.static-map::after {
  content: "Map Location: 12 Tech Park Way, London";
  background-color: var(--color-surface);
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-sm);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* Footer */
.site-footer {
  margin-top: auto;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-64) 0 var(--space-24);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-40);
  margin-bottom: var(--space-40);
}

.footer-heading {
  font-size: 1.125rem;
  margin-bottom: var(--space-16);
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: var(--space-8);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-24);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-light);
  font-size: 0.875rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  box-shadow: 0 -4px 24px rgba(0,0,0,0.1);
  padding: var(--space-24);
  z-index: 1000;
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-24);
  align-items: center;
  justify-content: space-between;
}

.cookie-text {
  flex: 1;
  min-width: 280px;
  margin: 0;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-16);
}

/* Breakpoints */
@media (max-width: 400px) {
  .hero-title { font-size: 1.75rem; }
  .card { height: auto; min-height: 320px; }
  .content-area { padding: var(--space-24) var(--space-16); }
  .split-layout { gap: var(--space-24); }
}

/* Accessibility */
@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;
  }
}