/* ==========================================================================
   CodeFier — Reset, base typography, layout primitives, utilities
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

body.nav-open { overflow: hidden; }

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-variation-settings: "SOFT" 0, "WONK" 0;
  text-wrap: balance;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }

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

img, svg, video { display: block; max-width: 100%; height: auto; }

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

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

hr {
  border: 0;
  height: 1px;
  background: var(--border);
  margin: 0;
}

::selection { background: var(--primary); color: #fff; }

/* ---- Focus visibility (a11y) ---- */
:focus-visible {
  outline: 2px solid var(--primary-soft);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 999;
  padding: 0.75rem 1.25rem;
  background: var(--primary);
  color: #fff;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus { top: 1rem; }

.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;
}

/* ==========================================================================
   Layout primitives
   ========================================================================== */

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

.container-x--wide { max-width: var(--wide); }

.section {
  padding-block: clamp(4rem, 10vw, 9rem);
  position: relative;
}
.section--tight  { padding-block: clamp(3rem, 6vw, 5rem); }
.section--flush-top { padding-top: 0; }

.rule {
  height: 1px;
  background: var(--border);
  border: 0;
  margin: 0;
}

/* ==========================================================================
   Editorial type utilities
   ========================================================================== */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}

.eyebrow--primary { color: var(--primary-soft); }

.numeric {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.display-italic {
  font-style: italic;
  font-variation-settings: "SOFT" 40, "WONK" 1;
}

.display-italic-red {
  font-style: italic;
  color: var(--primary);
  font-variation-settings: "SOFT" 40, "WONK" 1;
}

.text-primary  { color: var(--primary); }
.text-soft     { color: var(--text-soft); }
.text-muted    { color: var(--text-muted); }
.text-subtle   { color: var(--text-subtle); }

.lead {
  font-size: clamp(1.0625rem, 1.6vw, 1.375rem);
  line-height: 1.55;
  color: var(--text-soft);
  max-width: 62ch;
  letter-spacing: -0.012em;
}

.measure    { max-width: 68ch; }
.measure-sm { max-width: 52ch; }

/* Fig. plate caption */
.fig-caption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-subtle);
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
  margin-top: 0.85rem;
}

/* Hand-drawn underline accent */
.scribble { position: relative; display: inline-block; }
.scribble::after {
  content: "";
  position: absolute;
  left: -2%;
  right: -2%;
  bottom: 0.02em;
  height: 0.34em;
  background: var(--primary);
  opacity: 0.24;
  transform: skewX(-12deg);
  z-index: -1;
}

/* ==========================================================================
   Section heading block
   ========================================================================== */

.section-head {
  display: grid;
  gap: 1.5rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}
.section-head__title { max-width: 24ch; }
.section-head--split {
  grid-template-columns: 1fr;
}
@media (min-width: 900px) {
  .section-head--split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
    gap: 3rem;
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn-cta,
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7em;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  padding: 1.05em 1.9em;
  border: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease);
  will-change: transform;
}

.btn-cta {
  background: var(--primary);
  color: #fff;
}
.btn-cta:hover,
.btn-cta:focus-visible {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-outline {
  border-color: var(--border-hairline);
  color: var(--text);
}
.btn-outline:hover,
.btn-outline:focus-visible {
  border-color: var(--text);
  background: rgba(245, 239, 230, 0.04);
  transform: translateY(-2px);
}

.btn-cta__arrow {
  display: inline-block;
  transition: transform var(--dur-fast) var(--ease);
}
.btn-cta:hover .btn-cta__arrow,
.btn-outline:hover .btn-cta__arrow { transform: translateX(4px); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

/* Text link with arrow */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text);
  padding-bottom: 0.35em;
  border-bottom: 1px solid var(--border-hairline);
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.link-arrow:hover { border-color: var(--primary); color: var(--primary-soft); }
.link-arrow span { transition: transform var(--dur-fast) var(--ease); }
.link-arrow:hover span { transform: translateX(4px); }

/* Chip line — inline capability tags */
.chip-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.5rem;
}
.chip-line li {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.4em 0.75em;
  border-radius: 999px;
}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.85s var(--ease-out), transform 0.85s var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
}
.reveal.is-visible { opacity: 1; transform: none; }

.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

.animate-fade-in-soft {
  animation: fadeInSoft 1.1s var(--ease-out) both;
}
@keyframes fadeInSoft {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}