/* Design tokens — single source of truth for colors, typography, and spacing.
   Reference only var(--*) in components; do not add raw hex/font stacks outside this file. */

:root {
  /* Brand & neutrals (Figma-aligned, Rational Path usage) */
  --color-primary: #b9cc89;
  /* Darker mix for body text, links, rules, and focus rings on light surfaces (WCAG AA) */
  --color-primary-on-surface: color-mix(in srgb, var(--color-primary) 34%, var(--color-ink) 66%);
  --color-ink: #000000;
  /* Hero, principles panel, CTA, footer — warm “ink” with sage (not flat #000) */
  --color-brand-dark: color-mix(in srgb, var(--color-primary) 14%, var(--color-ink));
  --color-ink-muted: #54595f;
  --color-ink-subtle: #7a7a7a;
  --color-surface: #ffffff;
  /* Page + section wash — light enough to avoid a flat “wireframe” gray */
  --color-surface-soft: #fafafa;
  --color-on-dark: #f8f9fa;
  --color-on-dark-muted: #7a7a7a;
  --color-border-subtle: rgba(0, 0, 0, 0.08);
  --color-partner-grid-line: #eeeeee;
  --color-overlay-scrim: rgba(0, 0, 0, 0.4);
  --color-overlay-gradient-end: rgba(0, 0, 0, 0.5);
  --color-focus-ring: var(--color-primary-on-surface);

  /* Brand atmosphere — mix with real surfaces (not `transparent`: sRGB treats it as black, which hides tints) */
  --bg-brand-wash-soft: color-mix(in srgb, var(--color-primary) 14%, var(--color-surface-soft));
  --bg-brand-wash: color-mix(in srgb, var(--color-primary) 13%, var(--color-surface));
  --bg-brand-peak-soft: color-mix(in srgb, var(--color-primary) 46%, var(--color-surface-soft));
  --bg-brand-peak: color-mix(in srgb, var(--color-primary) 44%, var(--color-surface));
  --bg-brand-ink-glow: color-mix(in srgb, var(--color-primary) 54%, var(--color-ink));
  /* Dot grid (capabilities): faint specks on wash-soft */
  --bg-brand-dot: color-mix(in srgb, var(--color-primary) 28%, var(--bg-brand-wash-soft));

  /* Typography — load faces in index.html */
  --font-heading: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Roboto", system-ui, sans-serif;
  --font-label: "Poppins", system-ui, sans-serif;
  --font-mono: "Roboto Mono", ui-monospace, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  /* Body / default paragraph (1rem ≈ 16px at default root) */
  --text-base: 1rem;
  --text-md: 1.375rem;
  --text-lg: 1.75rem;
  --text-xl: 1.875rem;
  --text-2xl: 2.375rem;
  --text-display: clamp(2.75rem, 6vw, 5rem);

  --leading-tight: 1.1;
  --leading-snug: 1.25;
  --leading-body: 1.48;
  --tracking-label: 0.13em;
  --tracking-overline: 0.08em;

  /* Layout */
  --container-max: 90rem;
  --container-narrow: 48rem;
  --gutter-x: clamp(1rem, 5vw, 10rem);
  --section-y: clamp(4rem, 8vw, 7.5rem);
  --section-y-tight: clamp(2rem, 4vw, 3.75rem);

  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;

  --header-h: 4.25rem;
  --z-header: 50;
  --z-skip: 100;
}

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

html {
  scroll-behavior: smooth;
}

body.rp-body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
  background-color: var(--bg-brand-wash-soft);
  background-image:
    radial-gradient(
      ellipse 168% 118% at 48% -22%,
      var(--bg-brand-peak-soft) 0%,
      var(--bg-brand-wash-soft) 52%
    ),
    radial-gradient(
      ellipse 95% 85% at 102% 108%,
      color-mix(in srgb, var(--color-primary) 36%, var(--color-surface-soft)) 0%,
      var(--bg-brand-wash-soft) 62%
    );
  background-repeat: no-repeat, no-repeat;
  -webkit-font-smoothing: antialiased;
}

.rp-type-display {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: var(--leading-tight);
  color: var(--color-ink);
}

.rp-type-h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-2xl);
  line-height: var(--leading-snug);
  color: var(--color-ink);
}

.rp-type-h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  color: var(--color-ink);
}

.rp-type-h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-lg);
  line-height: var(--leading-snug);
}

.rp-type-h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-md);
  line-height: 1.45;
  letter-spacing: 0.05em;
}

.rp-type-overline {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: var(--text-sm);
  line-height: 1.2;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-primary-on-surface);
}

.rp-type-label-accent {
  font-family: var(--font-label);
  font-weight: 600;
  font-size: var(--text-xs);
  line-height: 1.4;
  letter-spacing: var(--tracking-overline);
  text-transform: uppercase;
  color: var(--color-primary-on-surface);
}

.rp-type-body {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

.rp-type-quote {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 500;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

.rp-type-mono-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-on-dark-muted);
}

.rp-link {
  color: var(--color-primary-on-surface);
  text-decoration: none;
  font-weight: 600;
}

.rp-link:hover,
.rp-link:focus-visible {
  text-decoration: underline;
}

.rp-link:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

.rp-container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter-x);
}

.rp-skip-link {
  position: absolute;
  left: -9999px;
  z-index: var(--z-skip);
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  color: var(--color-ink);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}

.rp-skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.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;
}