/* =========================================================
   base.css â€” design tokens, reset, typography, buttons
   ========================================================= */
:root {
  /* Brand */
  --teal-50: #ecf5f2;
  --teal-100: #e1eeea;
  --teal-300: #3ba4a0;
  --teal-500: #007874;
  --teal-600: #006a66;
  --teal-700: #005b58;
  --teal-900: #007878;

  /* Neutrals */
  --ink-900: #1f2526;
  --ink-800: #202B2C;
  --ink-600: #4f5859;
  --ink-500: #586364;
  --ink-400: #8b9394;
  --line: #e3e8e6;
  --line-strong: #cfd8d5;
  --soft: #f4f6f3;
  --white: #ffffff;
  --footer: #1a1a1c;

  /* Type */
  --font: "Open Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --fs-h1: clamp(3rem, 1.5rem + 2vw, 2.75rem);         /* 32 â†’ 44 */
  --fs-h2: clamp(2rem, 1.25rem + 1vw, 2rem);          /* 24 â†’ 32 */
  --fs-h4: clamp(1.125rem, 1.05rem + .3vw, 1.3125rem);  /* 18 â†’ 21 */
  --fs-h5: clamp(1.0625rem, 1rem + .25vw, 1.25rem);     /* 17 â†’ 20 */
  --fs-stat: clamp(2rem, 1.6rem + 1.6vw, 3rem);
  --fs-body: 1rem;
  --fs-sm: 1rem;
  --fs-xs: .75rem;
  --fs-eyebrow: 1rem;

  /* Layout */
  --container: 1200px;
  --gutter: clamp(1.25rem, 4vw, 2rem);
  --section-y: clamp(3.5rem, 2.4rem + 4.5vw, 5.5rem);
  --header-h: 72px;

  /* Surfaces */
  --radius-sm: 4px;
  --radius: 6px;
  --radius-lg: 10px;
  --shadow-card: 0 1px 2px rgba(16, 40, 38, .04), 0 4px 16px rgba(16, 40, 38, .04);
  --shadow-form: 0 12px 40px rgba(0, 32, 30, .28);
  --ring: 0 0 0 3px rgba(0, 120, 116, .28);
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 8px);
}
body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: 1.4;
  color: var(--ink-600);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
sup { font-size: .5em; vertical-align: super; line-height: 0; }

:focus-visible { outline: 2px solid var(--teal-500); outline-offset: 2px; }

.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -100px; z-index: 200;
  background: var(--teal-500); color: var(--white); padding: .75rem 1rem; border-radius: var(--radius);
}
.skip-link:focus { top: 1rem; }

/* ---------- Typography ---------- */
.eyebrow {
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--teal-500);
  line-height: 1.4;
  margin-bottom: .75rem;
}
.eyebrow--light { color: rgba(255, 255, 255, .9); }

.h2 {
  font-size: var(--fs-h2);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--ink-800);
  margin-bottom: 1.25rem;
}
.h2--light { color: var(--white); }
.h4 {
  font-size: var(--fs-h4);
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink-800);
  margin-bottom: .625rem;
}
.h5 {
  font-size: var(--fs-h5);
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink-800);
  margin-bottom: .625rem;
}
.body { font-size: var(--fs-body); line-height: 1.7; color: var(--ink-600); }
.body--light { color: rgba(255, 255, 255, .88); }
.body-sm { font-size: var(--fs-sm); line-height: 1.65; color: var(--ink-500); }

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--teal-500);
  --btn-fg: var(--white);
  --btn-bd: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 44px;
  padding: .75rem 1.5rem;
  border: 1px solid var(--btn-bd);
  border-radius: var(--radius-sm);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
  transition: background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease), transform .1s var(--ease);
  text-transform: uppercase !important;
}
.btn:hover {--btn-bg: var(--teal-600);color: #fff;}
.btn:active { transform: translateY(1px); --btn-bg: var(--teal-700); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }

.btn--sm { min-height: 40px; padding: .625rem 1.125rem; font-size: .75rem; }
.btn--block { width: 100%; }

.btn--teal-soft { --btn-bg: #087D79; }
.btn--teal-soft:hover { --btn-bg: #33948f; }
.btn--teal-soft:active { --btn-bg: #2b827e; }
.btn--teal-soft:focus-visible { box-shadow: 0 0 0 3px rgba(255, 255, 255, .5); }

.btn--white { --btn-bg: var(--white); --btn-fg: var(--teal-900); }
.btn--white:hover { --btn-bg: var(--teal-50); --btn-fg: var(--teal-700); }
.btn--white:active { --btn-bg: var(--teal-100); }
.btn--white:focus-visible { box-shadow: 0 0 0 3px rgba(255, 255, 255, .55); }

.center { display: flex; justify-content: center; }

sup {
    font-size:12px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}
