/* ==========================================================================
   Online Property UK — Aurora Systems Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Color tokens */
  --surface: #f8f9ff;
  --surface-dim: #c4dcff;
  --surface-bright: #f8f9ff;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #eff4ff;
  --surface-container: #e5eeff;
  --surface-container-high: #dce9ff;
  --surface-container-highest: #d2e4ff;
  --on-surface: #0a2540;
  --on-surface-variant: #464555;
  --inverse-surface: #19324d;
  --inverse-on-surface: #eaf1ff;
  --outline: #777587;
  --outline-variant: #c7c4d8;
  --surface-tint: #4c42e9;
  --primary: #493ee5;
  --on-primary: #ffffff;
  --primary-container: #635bff;
  --on-primary-container: #fefaff;
  --inverse-primary: #c3c0ff;
  --secondary: #00677e;
  --on-secondary: #ffffff;
  --secondary-container: #00d2fd;
  --on-secondary-container: #005669;
  --tertiary: #8318da;
  --on-tertiary: #ffffff;
  --tertiary-container: #9d40f4;
  --on-tertiary-container: #fffafa;
  --error: #ba1a1a;
  --on-error: #ffffff;
  --error-container: #ffdad6;
  --on-error-container: #93000a;
  --background: #f8f9ff;
  --on-background: #0a2540;
  --surface-variant: #d2e4ff;
  --border-subtle: #e6ebf1;
  --success-bg: #e3f6e9;
  --success-text: #146c2e;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Spacing */
  --space-base: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --container-margin: 24px;
  --gutter: 16px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(10, 37, 64, 0.04), 0 1px 2px rgba(10, 37, 64, 0.03);
  --shadow-float: 0 20px 40px rgba(10, 37, 64, 0.06);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--background);
  color: var(--on-background);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

button { font-family: inherit; cursor: pointer; }

ul { list-style: none; }

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

@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;
  }
}

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--container-margin);
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }
}

section { padding: 80px 0; }

@media (max-width: 768px) {
  section { padding: 48px 0; }
}

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

.display-lg {
  font-size: 48px;
  font-weight: 700;
  line-height: 56px;
  letter-spacing: -0.03em;
  color: var(--on-surface);
}

.headline-lg {
  font-size: 32px;
  font-weight: 600;
  line-height: 40px;
  letter-spacing: -0.02em;
  color: var(--on-surface);
}

.headline-md {
  font-size: 20px;
  font-weight: 600;
  line-height: 28px;
  letter-spacing: -0.01em;
  color: var(--on-surface);
}

.body-lg {
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  letter-spacing: -0.01em;
  color: var(--on-surface-variant);
}

.body-sm {
  font-size: 14px;
  font-weight: 400;
  line-height: 20px;
  color: var(--on-surface-variant);
}

.label-md {
  font-size: 12px;
  font-weight: 600;
  line-height: 16px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.mono-sm {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  line-height: 18px;
  overflow-wrap: anywhere;
}

@media (max-width: 768px) {
  .display-lg { font-size: 32px; line-height: 38px; }
  .headline-lg { font-size: 24px; line-height: 32px; }
}

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

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 249, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px var(--container-margin);
  max-width: 1280px;
  margin: 0 auto;
}

.nav-logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--on-surface);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--on-surface-variant);
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: background 0.15s ease, color 0.15s ease;
}

.nav-links a:hover { background: var(--surface-container-low); color: var(--on-surface); }

.nav-links a.active {
  background: var(--surface-container-low);
  color: var(--primary);
}

.nav-actions { display: flex; align-items: center; gap: 12px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
}

.nav-toggle svg { width: 22px; height: 22px; color: var(--on-surface); }

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-inner { position: relative; }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface-container-lowest);
    border-bottom: 1px solid var(--border-subtle);
    padding: 8px;
    gap: 0;
  }
  .nav-links.mobile-open a { padding: 12px 14px; width: 100%; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--primary-container);
  color: var(--on-primary);
}

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

.btn-secondary {
  background: var(--surface-container-lowest);
  border-color: var(--border-subtle);
  color: var(--on-surface);
}

.btn-secondary:hover { border-color: var(--outline); background: var(--surface-container-low); }

.btn-inverse {
  background: var(--surface-container-lowest);
  color: var(--primary);
}

.btn-inverse:hover { background: var(--inverse-on-surface); }

.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-full { width: 100%; }

/* ==========================================================================
   Cards / Bento
   ========================================================================== */

.card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
}

@media (max-width: 768px) {
  .card { padding: var(--space-md); }
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.card-icon svg { width: 22px; height: 22px; }

.icon-tint-primary { background: var(--surface-container-high); color: var(--primary); }
.icon-tint-secondary { background: var(--surface-container-high); color: var(--secondary); }
.icon-tint-tertiary { background: var(--surface-container-high); color: var(--tertiary); }

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-md);
}

.span-6 { grid-column: span 6; }
.span-4 { grid-column: span 4; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }

@media (max-width: 900px) {
  .span-6, .span-4, .span-8, .span-12 { grid-column: span 12; }
}

/* Grid items shrink below their content's intrinsic width instead of
   forcing the track (and the page) wider than the viewport. */
.bento-grid > *,
.footer-grid > *,
.stats-grid > *,
.grid-3 > *,
.grid-4 > * {
  min-width: 0;
}

/* Fixed-count grids used outside the 12-col bento system, with their
   own mobile breakpoints (stats bar, compliance steps, security cards) */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 700px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-lg) var(--space-md); }
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .grid-4 { grid-template-columns: 1fr; }
}

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

@media (max-width: 760px) {
  .grid-3 { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Chips / badges
   ========================================================================== */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
}

.chip-primary { background: var(--surface-container-high); color: var(--primary); }
.chip-success { background: var(--success-bg); color: var(--success-text); }
.chip-cyan { background: rgba(0, 210, 253, 0.12); color: var(--secondary); }
.chip-outline { background: var(--surface-container-lowest); border: 1px solid var(--border-subtle); color: var(--on-surface-variant); }

/* ==========================================================================
   Forms
   ========================================================================== */

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--space-md); }

.field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--on-surface);
}

.field input,
.field textarea,
.field select {
  font-family: inherit;
  font-size: 14px;
  color: var(--on-surface);
  padding: 12px 14px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  background: var(--surface-container-lowest);
  box-shadow: inset 0 1px 2px rgba(10, 37, 64, 0.03);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  width: 100%;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(73, 62, 229, 0.15);
}

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

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

@media (max-width: 600px) {
  .field-row { grid-template-columns: 1fr; }
}

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

.site-footer {
  background: var(--surface-container-low);
  border-top: 1px solid var(--border-subtle);
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  padding-bottom: 32px;
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

.footer-brand { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }

.footer-col h4 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--on-surface-variant);
  padding: 6px 0;
  transition: color 0.15s ease;
  overflow-wrap: anywhere;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--on-surface-variant);
}

.footer-newsletter {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.footer-newsletter input {
  flex: 1;
  padding: 10px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border-subtle);
  font-size: 13px;
  min-width: 0;
}

.footer-newsletter button {
  background: var(--primary-container);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.text-center { text-align: center; }
.mt-xs { margin-top: 8px; }
.mt-sm { margin-top: 12px; }
.mt-md { margin-top: 16px; }
.mt-lg { margin-top: 24px; }
.mt-xl { margin-top: 40px; }
.mb-md { margin-bottom: 16px; }
.mb-lg { margin-bottom: 24px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.gap-sm { gap: 12px; }
.gap-md { gap: 16px; }
.gradient-text {
  background: linear-gradient(90deg, var(--primary) 0%, var(--tertiary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Aurora mesh gradient backgrounds (used sparingly, per brand: signifies movement/live data) */
.aurora-bg {
  position: relative;
  background: var(--surface);
}

.aurora-mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.5;
  background:
    radial-gradient(ellipse 600px 400px at 15% 0%, rgba(0, 210, 253, 0.35), transparent 60%),
    radial-gradient(ellipse 700px 450px at 85% 10%, rgba(157, 64, 244, 0.28), transparent 60%),
    radial-gradient(ellipse 500px 400px at 50% 30%, rgba(73, 62, 229, 0.2), transparent 60%);
  filter: blur(40px);
  pointer-events: none;
}

.dark-section {
  background: var(--inverse-surface);
  color: var(--inverse-on-surface);
  border-radius: var(--radius-xl);
}

.dark-section .body-lg,
.dark-section .body-sm { color: rgba(234, 241, 255, 0.72); }

/* Photo containers — real photography via <img>, with a brand-toned
   background visible briefly while the image loads */
.illustration {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  min-height: 200px;
  background: var(--surface-container-high);
}

.illustration img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.illustration-map::before,
.illustration-interior::before,
.illustration-building::before,
.illustration-device::before { content: none; }

.illustration-device {
  background: linear-gradient(150deg, #e5eeff, #d2e4ff);
}

.illustration-content {
  position: relative;
  z-index: 1;
  padding: var(--space-md);
  width: 100%;
}