/* ============================================================
   Arcolab Health — Clinical Calm
   Light, airy, soft blue→teal. Mono labels = quiet techy signal.
   ============================================================ */

:root {
  /* Brand DNA carried from curaemr / form-filler */
  --blue:        hsl(215 65% 42%);
  --blue-deep:   hsl(215 70% 30%);
  --blue-soft:   hsl(215 70% 96%);
  --teal:        hsl(175 55% 40%);
  --teal-soft:   hsl(175 50% 95%);

  --bg:          hsl(210 30% 99%);
  --bg-alt:      hsl(210 28% 97%);
  --fg:          hsl(215 28% 13%);
  --muted:       hsl(215 14% 46%);
  --line:        hsl(214 24% 90%);
  --line-strong: hsl(214 22% 84%);
  --card:        hsl(0 0% 100%);

  --shadow-sm: 0 1px 2px hsl(215 30% 20% / .05),
               0 1px 1px hsl(215 30% 20% / .04);
  --shadow-md: 0 10px 30px -12px hsl(215 40% 30% / .18),
               0 4px 10px -6px hsl(215 40% 30% / .10);
  --shadow-lg: 0 30px 60px -24px hsl(215 45% 28% / .28);

  --radius: 14px;
  --maxw: 1120px;

  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;

  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ----------------------------- reset ----------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
:focus-visible {
  outline: 2.5px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ----------------------------- layout ---------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
section { position: relative; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--teal);
  opacity: .6;
}

/* ----------------------------- header ---------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(12px);
  background: hsl(210 30% 99% / .72);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.site-header.scrolled {
  border-bottom-color: var(--line);
  background: hsl(210 30% 99% / .9);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 650;
  font-size: 18px;
  letter-spacing: -.01em;
}
.brand .mark { width: 30px; height: 30px; flex: none; }
.brand b { font-weight: 650; }
.brand span { color: var(--muted); font-weight: 500; }

/* ----------------------------- buttons --------------------------- */
.btn {
  --btn-bg: var(--blue);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 560;
  padding: 11px 20px;
  border-radius: 10px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s var(--ease), box-shadow .25s, background .2s;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }
.btn .arrow { transition: transform .25s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

.btn.ghost {
  --btn-bg: transparent;
  --btn-fg: var(--blue);
  border-color: var(--line-strong);
  box-shadow: none;
}
.btn.ghost:hover { background: var(--blue-soft); border-color: var(--blue); box-shadow: var(--shadow-sm); }

.btn.lg { padding: 14px 26px; font-size: 16px; }

/* ----------------------------- hero ------------------------------ */
.hero { padding: clamp(72px, 13vh, 150px) 0 clamp(64px, 10vh, 120px); overflow: hidden; }
.hero::before {  /* gradient orb */
  content: "";
  position: absolute;
  top: -160px; right: -120px;
  width: 620px; height: 620px;
  background: radial-gradient(circle at 30% 30%,
              hsl(175 60% 55% / .28), transparent 60%),
              radial-gradient(circle at 70% 70%,
              hsl(215 75% 60% / .26), transparent 62%);
  filter: blur(8px);
  z-index: 0;
  pointer-events: none;
}
.hero::after {  /* faint grid */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 70% 0%, #000, transparent 75%);
          mask-image: radial-gradient(ellipse 80% 60% at 70% 0%, #000, transparent 75%);
  opacity: .5;
  z-index: 0;
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; max-width: 920px; }
.hero h1 {
  font-size: clamp(40px, 6.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -.035em;
  font-weight: 680;
  margin: 22px 0 0;
}
.hero h1 .grad {
  background: linear-gradient(105deg, var(--blue) 10%, var(--teal) 95%);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}
.hero .sub {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--muted);
  max-width: 560px;
  margin: 26px 0 36px;
  line-height: 1.55;
}
.hero .cta-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero .cta-note { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }

/* ----------------------------- "what we do" ---------------------- */
.section-pad { padding: clamp(64px, 9vh, 110px) 0; }
.section-head { max-width: 640px; margin-bottom: 52px; }
.section-head h2 {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.08;
  letter-spacing: -.025em;
  font-weight: 660;
  margin-top: 16px;
}
.section-head p { color: var(--muted); margin-top: 16px; font-size: 18px; }

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 760px) { .cards { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px 32px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
  position: relative;
  overflow: hidden;
}
.card::before {  /* top accent line revealed on hover */
  content: "";
  position: absolute;
  left: 0; top: 0; height: 3px; width: 100%;
  background: linear-gradient(90deg, var(--blue), var(--teal));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease);
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--line-strong); }
.card:hover::before { transform: scaleX(1); }
.card .idx {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--teal);
  letter-spacing: .1em;
}
.card .ico {
  width: 44px; height: 44px;
  margin: 18px 0 18px;
  border-radius: 11px;
  display: grid; place-items: center;
  background: var(--blue-soft);
  color: var(--blue);
  border: 1px solid hsl(215 65% 42% / .14);
}
.card h3 { font-size: 20px; font-weight: 620; letter-spacing: -.01em; }
.card p { color: var(--muted); margin-top: 10px; font-size: 15.5px; line-height: 1.6; }

/* ----------------------------- "who it's for" band -------------- */
.band { background: var(--bg-alt); border-block: 1px solid var(--line); }
.band .inner {
  display: grid;
  gap: 28px;
  align-items: center;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) { .band .inner { grid-template-columns: 1fr 1fr; gap: 56px; } }
.band h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.12;
  letter-spacing: -.025em;
  font-weight: 650;
  margin-top: 14px;
}
.band p { color: var(--muted); margin-top: 18px; font-size: 17.5px; }
.audience { display: flex; flex-direction: column; gap: 14px; }
.audience .item {
  display: flex; align-items: center; gap: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}
.audience .item svg { color: var(--teal); flex: none; }
.audience .item b { font-weight: 580; }
.audience .item span { display: block; color: var(--muted); font-size: 14px; }

/* ----------------------------- approach / values ---------------- */
.values { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (min-width: 760px) { .values { grid-template-columns: repeat(3, 1fr); } }
.value {
  background: var(--card);
  padding: 30px 28px;
  transition: background .3s;
}
.value:hover { background: var(--bg-alt); }
.value .vnum { font-family: var(--mono); font-size: 12px; color: var(--muted); letter-spacing: .1em; }
.value h3 { font-size: 18.5px; font-weight: 600; margin-top: 14px; display: flex; align-items: center; gap: 9px; }
.value h3 .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); flex: none; }
.value p { color: var(--muted); margin-top: 10px; font-size: 15px; line-height: 1.6; }

/* ----------------------------- contact CTA ---------------------- */
.cta {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--blue-deep), var(--blue) 55%, var(--teal) 130%);
  color: #fff;
  border-radius: 24px;
  padding: clamp(48px, 7vw, 84px) clamp(28px, 5vw, 72px);
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.cta::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(hsl(0 0% 100% / .07) 1px, transparent 1px),
    linear-gradient(90deg, hsl(0 0% 100% / .07) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 70% 90% at 50% 0%, #000, transparent 70%);
          mask-image: radial-gradient(ellipse 70% 90% at 50% 0%, #000, transparent 70%);
}
.cta > * { position: relative; z-index: 1; }
.cta .eyebrow { color: hsl(175 60% 80%); }
.cta .eyebrow::before { background: hsl(175 60% 80%); }
.cta h2 {
  font-size: clamp(28px, 4.4vw, 46px);
  line-height: 1.08;
  letter-spacing: -.03em;
  font-weight: 660;
  margin: 16px auto 0;
  max-width: 640px;
}
.cta p { color: hsl(210 40% 92%); margin: 18px auto 34px; max-width: 480px; font-size: 17.5px; }
.cta .btn { --btn-bg: #fff; --btn-fg: var(--blue-deep); }
.cta .btn:hover { --btn-bg: hsl(210 40% 97%); }
.cta .mailto {
  display: block; margin-top: 22px;
  font-family: var(--mono); font-size: 13px;
  color: hsl(210 40% 88%);
}
.cta .mailto a { text-decoration: underline; text-underline-offset: 3px; color: #fff; }

/* ----------------------------- footer --------------------------- */
.site-footer { padding: 48px 0; border-top: 1px solid var(--line); margin-top: clamp(64px, 9vh, 110px); }
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 20px;
  align-items: center; justify-content: space-between;
}
.footer-inner .brand { font-size: 16px; }
.footer-meta { display: flex; flex-wrap: wrap; gap: 22px; align-items: center; font-size: 14px; color: var(--muted); }
.footer-meta a:hover { color: var(--blue); }
.footer-meta .mono { font-family: var(--mono); font-size: 12.5px; }

/* ----------------------------- load animation ------------------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] { opacity: 0; transform: translateY(18px); }
  .revealed [data-reveal],
  [data-reveal].in {
    opacity: 1; transform: none;
    transition: opacity .7s var(--ease), transform .7s var(--ease);
  }
  .hero [data-reveal] { transition-delay: var(--d, 0ms); }
}