:root {
  /* BMW M Color System - adapted for NEXT Real Estate */
  --color-primary: #ffffff;
  --color-ink: #ffffff;
  --color-body: #bbbbbb;
  --color-body-strong: #e6e6e6;
  --color-muted: #7e7e7e;
  --color-hairline: #3c3c3c;
  --color-hairline-strong: #262626;
  --color-canvas: #000000;
  --color-surface-card: #1a1a1a;
  --color-surface-elevated: #262626;
  --color-surface-soft: #0d0d0d;
  --color-on-primary: #000000;
  --color-on-dark: #ffffff;

  /* Brand accent - M tricolor adapted as accent stripe */
  --color-m-blue-light: #0066b1;
  --color-m-blue-dark: #1c69d4;
  --color-m-red: #e22718;

  /* Semantic */
  --color-success: #0fa336;
  --color-warning: #f4b400;

  /* Typography - Inter as BMW Type Next Latin substitute */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Type Scale */
  --text-display-xl: 700 80px/1.0 var(--font-display);
  --text-display-lg: 700 56px/1.05 var(--font-display);
  --text-display-md: 700 40px/1.1 var(--font-display);
  --text-display-sm: 700 32px/1.15 var(--font-display);
  --text-title-lg: 700 24px/1.3 var(--font-display);
  --text-title-md: 400 20px/1.4 var(--font-display);
  --text-title-sm: 400 18px/1.4 var(--font-display);
  --text-label-upper: 700 14px/1.3 var(--font-display);
  --text-body-md: 300 16px/1.5 var(--font-body);
  --text-body-sm: 300 14px/1.5 var(--font-body);
  --text-caption: 400 12px/1.4 var(--font-display);
  --text-button: 700 14px/1.0 var(--font-display);
  --text-nav: 400 14px/1.4 var(--font-display);

  /* Spacing */
  --space-xxs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-xxl: 64px;
  --space-section: 96px;

  /* Radius - BMW M: almost always 0, sometimes circular */
  --radius-none: 0px;
  --radius-full: 9999px;

  /* Component heights */
  --height-nav: 64px;
  --height-button: 48px;
  --height-input: 48px;

  /* Max width */
  --max-content: 1440px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--color-canvas);
  color: var(--color-body);
  font: var(--text-body-md);
  letter-spacing: 0;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-on-dark);
}

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

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

.container {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Button system */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: var(--text-button);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  height: var(--height-button);
  padding: 16px 32px;
  border-radius: var(--radius-none);
  cursor: pointer;
  transition: opacity 0.2s ease-out;
  border: 1px solid var(--color-on-dark);
}

.btn:hover {
  opacity: 0.85;
}

.btn-primary {
  background-color: var(--color-on-dark);
  color: var(--color-canvas);
  border-color: var(--color-on-dark);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-on-dark);
  border-color: var(--color-on-dark);
}

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

/* M stripe divider */
.m-stripe {
  height: 4px;
  background: linear-gradient(90deg, var(--color-m-blue-light) 33%, var(--color-m-blue-dark) 33% 66%, var(--color-m-red) 66%);
}

/* Label uppercase style */
.label-upper {
  font: var(--text-label-upper);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-muted);
}

@media (max-width: 768px) {
  :root {
    --space-section: 64px;
  }
}