/* ============================================================
   PN Group — Global / Base
   ============================================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--text-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Atmosphere: deep radial glow behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(120% 80% at 78% -10%, rgba(43, 196, 190, 0.16), transparent 55%),
    radial-gradient(90% 70% at 10% 110%, rgba(43, 196, 190, 0.07), transparent 60%),
    var(--bg);
}

/* Fine engineering grid texture */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.4;
  background-image:
    linear-gradient(var(--hairline) 1px, transparent 1px),
    linear-gradient(90deg, var(--hairline) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 80%);
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 80%);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text);
  line-height: 1.04;
  font-weight: 600;
  letter-spacing: -0.02em;
}

p { max-width: 68ch; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

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

ul { list-style: none; }

::selection {
  background: var(--teal);
  color: #04201f;
}

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

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

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-size: var(--text-eyebrow);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--teal), transparent);
}

.section-head {
  max-width: var(--maxw-narrow);
  margin-bottom: var(--space-block);
}
.section-head h2 {
  font-size: var(--text-h2);
  margin-block: 0.8rem 0;
}
.section-head .lead {
  margin-top: 1.2rem;
  font-size: var(--text-lead);
  color: var(--text-muted);
  font-weight: 400;
}

.text-teal { color: var(--teal); }

/* ---- Scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* utility */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}