:root {
  --color-bg: #faf8f3;
  --color-surface: #ffffff;
  --color-surface-tint: hsl(82, 22%, 93%);
  --color-surface-deep: #f3f0e7;

  --color-ink: #1b1f1c;
  --color-ink-soft: #565c54;
  --color-muted: #8b9085;

  --color-accent: #2f5d4f;
  --color-accent-strong: #244a3f;
  --color-accent-soft: #dce6df;
  --color-on-accent: #f6f8f4;

  --color-line: rgba(27, 31, 28, 0.1);
  --color-line-strong: rgba(27, 31, 28, 0.16);

  /* Typography */
  --font-sans: "Hanken Grotesk", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --fs-eyebrow: 0.8125rem;
  --fs-meta: 0.875rem;
  --fs-body: 1.0625rem;
  --fs-lead: clamp(1.125rem, 0.9rem + 1vw, 1.375rem);
  --fs-h3: clamp(1.2rem, 1rem + 0.8vw, 1.5rem);
  --fs-h2: clamp(1.7rem, 1.2rem + 2.4vw, 2.6rem);
  --fs-display: clamp(2.3rem, 1.3rem + 4.6vw, 4.1rem);

  --lh-tight: 1.1;
  --lh-snug: 1.28;
  --lh-body: 1.65;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semi: 600;
  --fw-bold: 700;

  /* Spacing */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.25rem;
  --space-2xl: 3.5rem;
  --space-section: clamp(4rem, 2.5rem + 7vw, 7.5rem);

  /* Shape */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --shadow-soft:
    0 1px 2px rgba(27, 31, 28, 0.05), 0 16px 36px -26px rgba(27, 31, 28, 0.3);
  --shadow-raise:
    0 2px 4px rgba(27, 31, 28, 0.06), 0 28px 60px -32px rgba(27, 31, 28, 0.38);

  /* Layout */
  --container: 1140px;
  --container-text: 720px;
  --gutter: clamp(1.25rem, 0.5rem + 3vw, 2.5rem);

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 0.22s;
}

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

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px; /* offset for sticky header on anchor scroll */
  overflow-x: clip; /* clip (not hidden) preserves position:sticky */
}

body {
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: var(--fw-regular);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  overflow-x: clip; /* prevent horizontal scroll without breaking sticky nav */
}

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

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

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

ul,
ol {
  list-style: none;
  padding: 0;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

/* ---------- Typography ------------------------------------------- */
h1,
h2,
h3 {
  font-weight: var(--fw-semi);
  line-height: var(--lh-snug);
  letter-spacing: -0.012em;
  color: var(--color-ink);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

.c-eyebrow {
  display: inline-block;
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-semi);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.c-section-head__title {
  font-size: var(--fs-h2);
  letter-spacing: -0.02em;
}

.c-section-head__intro {
  max-width: 46ch;
  margin-top: var(--space-md);
  color: var(--color-ink-soft);
  font-size: var(--fs-lead);
  line-height: 1.5;
}

.c-lead {
  font-size: var(--fs-lead);
  line-height: 1.55;
  color: var(--color-ink-soft);
}

/* ---------- Layout-helpers (flexbox) ----------------------------- */
.o-container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.o-section {
  padding-block: var(--space-section);
}

.c-section-head {
  max-width: var(--container-text);
  margin-bottom: var(--space-2xl);
}

/* ---------- Buttons ---------------------------------------------- */
.c-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.85rem 1.4rem;
  font-size: var(--fs-meta);
  font-weight: var(--fw-semi);
  letter-spacing: 0.005em;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
  will-change: transform;
}
.c-btn:active {
  transform: translateY(1px);
}

.c-btn--primary {
  background: var(--color-accent);
  color: var(--color-on-accent);
}
.c-btn--primary:hover {
  background: var(--color-accent-strong);
}

.c-btn.c-btn--secondary {
  background: transparent;
  color: var(--color-ink);
  border-style: solid;
  border-width: 1px;
  border-color: var(--color-line-strong);
}
.c-btn.c-btn--secondary:hover {
  border: 1px solid var(--color-accent);
  color: var(--color-accent-strong);
  background: color-mix(in srgb, var(--color-accent) 12%, transparent);
}

.c-btn--text {
  padding: 0.4rem 0;
  border-radius: 0;
  color: var(--color-accent);
  background: transparent;
}
.c-btn--text .c-btn__arrow {
  transition: transform var(--dur) var(--ease);
}
.c-btn--text:hover .c-btn__arrow {
  transform: translateX(3px);
}

.c-btn__arrow {
  font-size: 1.05em;
  line-height: 1;
}

/* ---------- Reduced motion --------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}