/* ==========================================================================
   Net-Vendor - reset, base type, layout primitives, shared utilities
   ========================================================================== */

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* Lenis runs the scroll itself; the native smooth behaviour would fight it. */
html.has-lenis { scroll-behavior: auto; }
html.has-lenis body { overscroll-behavior: none; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: var(--lh-copy);
  font-feature-settings: "ss01", "cv01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

h1, h2, h3, h4, h5, h6, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

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

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

.skip-link {
  position: absolute;
  left: var(--s-4);
  top: -100px;
  z-index: var(--z-overlay);
  padding: var(--s-3) var(--s-5);
  background: var(--nv-black);
  color: #fff;
  border-radius: var(--r-sm);
  transition: top var(--dur-2) var(--ease-out);
}
.skip-link:focus { top: var(--s-4); }

/* --------------------------------------------------------------------------
   Layout primitives
   -------------------------------------------------------------------------- */

.shell {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.shell--wide { max-width: 96rem; }
.shell--text { max-width: var(--maxw-text); }

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

.section--tight { padding-block: clamp(3rem, 6vw, 5.5rem); }
.section--stats { padding-block: clamp(2.25rem, 4vw, 3.5rem); }

/* Collapse the seam where two padded sections meet and the join reads as
   dead space rather than a deliberate break. */
.section--flush-b { padding-bottom: 0; }
.section--flush-t { padding-top: 0; }

.section--dark {
  background: var(--bg-dark);
  color: var(--fg-on-dark);
}
.section--alt { background: var(--bg-alt); }

.section--dark .sec-head__title,
.section--dark h2,
.section--dark h3 { color: var(--fg-on-dark); }

/* --------------------------------------------------------------------------
   Corner meta labels - the mono small-caps rail used across both references
   -------------------------------------------------------------------------- */

.meta {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--fg-faint);
  font-weight: 500;
}

.section--dark .meta { color: var(--fg-on-dark-fnt); }

.meta-rail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--rule);
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.section--dark .meta-rail { border-color: var(--rule-on-dark); }

.meta-rail__left {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}

.meta-rail__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--nv-blue);
  flex: none;
}

/* --------------------------------------------------------------------------
   Type helpers
   -------------------------------------------------------------------------- */

.display {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-disp);
  text-wrap: balance;
}

.display--1 { font-size: var(--t-d1); line-height: 1.04; }
.display--2 { font-size: var(--t-d2); }
.display--3 { font-size: var(--t-d3); }

.serif-accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.lead {
  font-size: var(--t-lead);
  line-height: 1.5;
  color: var(--fg-muted);
  text-wrap: pretty;
}

.section--dark .lead { color: var(--fg-on-dark-mut); }

.muted { color: var(--fg-muted); }
.section--dark .muted { color: var(--fg-on-dark-mut); }

.small { font-size: var(--t-sm); }

.sec-head {
  display: grid;
  gap: var(--s-5);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

@media (min-width: 62rem) {
  .sec-head--split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: end;
    gap: var(--s-8);
  }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  --btn-bg: var(--nv-black);
  --btn-fg: #fff;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: 0.875rem 1.5rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: -0.005em;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--dur-2) var(--ease-out),
              box-shadow var(--dur-2) var(--ease-out),
              background-color var(--dur-2) var(--ease-out),
              border-color var(--dur-2) var(--ease-out),
              color var(--dur-2) var(--ease-out);
}

.btn::after {
  /* sheen wipe on hover */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(110deg,
              transparent 20%,
              rgba(255, 255, 255, 0.16) 45%,
              transparent 70%);
  transform: translateX(-120%);
  transition: transform var(--dur-4) var(--ease-out);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn:hover::after { transform: translateX(120%); }
.btn:active { transform: translateY(0); }

.btn__arrow {
  display: inline-block;
  transition: transform var(--dur-2) var(--ease-out);
}
.btn:hover .btn__arrow { transform: translateX(4px); }

.btn--accent { --btn-bg: var(--nv-blue); }
.btn--accent:hover { --btn-bg: var(--nv-blue-deep); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--fg);
  border-color: var(--rule-strong);
}
.btn--ghost:hover {
  --btn-bg: var(--nv-black);
  --btn-fg: #fff;
  border-color: var(--nv-black);
}

.btn--on-dark {
  --btn-bg: #fff;
  --btn-fg: var(--nv-black);
}
.btn--on-dark::after {
  background: linear-gradient(110deg,
              transparent 20%,
              rgba(7, 11, 17, 0.08) 45%,
              transparent 70%);
}

.btn--ghost-on-dark {
  --btn-bg: transparent;
  --btn-fg: #fff;
  border-color: var(--rule-on-dark);
}
.btn--ghost-on-dark:hover {
  --btn-bg: #fff;
  --btn-fg: var(--nv-black);
  border-color: #fff;
}

.btn--sm { padding: 0.625rem 1.125rem; font-size: var(--t-xs); }

/* Text link with a wiping underline */
.link-u {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-weight: 600;
  color: var(--nv-blue);
}
.link-u::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-2) var(--ease-out);
}
.link-u:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}
.section--dark .link-u { color: var(--nv-blue-bright); }

/* --------------------------------------------------------------------------
   Chips / tags
   -------------------------------------------------------------------------- */

/* A soft pill: hairline outline, faint fill, and a small blue dot carrying the
   accent. Quiet enough to repeat four to a row without shouting. */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem 0.4rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  background: var(--nv-paper-2);
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  white-space: nowrap;
  transition:
    border-color 220ms var(--ease-out),
    background-color 220ms var(--ease-out),
    color 220ms var(--ease-out);
}

.chip::before {
  content: "";
  flex: none;
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: var(--nv-blue);
}

.chip:hover {
  border-color: var(--rule-strong);
  background: var(--nv-blue-tint);
  color: var(--fg);
}

.section--dark .chip {
  border-color: var(--rule-on-dark);
  background: var(--nv-black-3);
  color: var(--fg-on-dark-mut);
}

.section--dark .chip::before { background: var(--nv-blue-bright); }

.section--dark .chip:hover {
  border-color: rgba(255, 255, 255, 0.28);
  background: #22262E;
  color: var(--fg-on-dark);
}

@media (prefers-reduced-motion: reduce) {
  .chip { transition: none; }
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-2);
}

/* Phones: the pill is a label, not a button, so it steps down a size rather
   than eating three lines of a card. */
@media (max-width: 47.99rem) {
  .chip {
    gap: 0.375rem;
    padding: 0.25rem 0.5rem 0.25rem 0.4375rem;
    font-size: 0.625rem;
    letter-spacing: 0.08em;
  }
  .chip::before { width: 0.3125rem; height: 0.3125rem; }
  .chip-row { gap: 0.375rem; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--nv-blue);
  font-weight: 500;
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
  flex: none;
}

/* --------------------------------------------------------------------------
   Media placeholder - stands in for client photography.
   Keeps the exact final aspect ratio so swapping in real files never
   reflows the layout. See docs/IMAGE-PLACEHOLDERS.md
   -------------------------------------------------------------------------- */

.ph {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-md);
  background:
    radial-gradient(120% 90% at 18% 12%, rgba(26, 109, 255, 0.62), transparent 62%),
    radial-gradient(100% 80% at 82% 78%, rgba(74, 144, 255, 0.40), transparent 58%),
    linear-gradient(145deg, var(--nv-blue-deep), var(--nv-black));
  color: var(--fg-on-dark-fnt);
  isolation: isolate;
}

.ph::after {
  /* fine grain so the flat fill does not read as a broken image */
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.35;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

.ph__label {
  position: absolute;
  left: var(--s-4);
  bottom: var(--s-4);
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}
.ph__label span:last-child { color: rgba(255, 255, 255, 0.42); }

.ph--1x1  { aspect-ratio: 1 / 1; }
.ph--4x3  { aspect-ratio: 4 / 3; }
.ph--3x2  { aspect-ratio: 3 / 2; }
.ph--16x9 { aspect-ratio: 16 / 9; }
.ph--3x4  { aspect-ratio: 3 / 4; }
.ph--21x9 { aspect-ratio: 21 / 9; }

/* --------------------------------------------------------------------------
   Scroll reveal - single owner of opacity+translate on revealed elements.
   Elements opt in with [data-reveal]; JS adds .is-in.
   -------------------------------------------------------------------------- */

[data-reveal] {
  opacity: 0;
  transform: translate3d(0, var(--rise-md), 0);
  transition: opacity var(--dur-4) var(--ease-out),
              transform var(--dur-4) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

[data-reveal].is-in {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  will-change: auto;
}

[data-reveal="lg"] { transform: translate3d(0, var(--rise-lg), 0); }
[data-reveal="sm"] { transform: translate3d(0, var(--rise-sm), 0); }

[data-reveal="fade"] { transform: none; }

/* Clip-reveal for headline lines.
   The clip mask must not crop descenders or tight letterforms, so the inner
   span carries a little vertical padding that the mask compensates for. */
.line-clip {
  display: block;
  overflow: hidden;
  /* The mask has to be bigger than the line box: at a 0.92 line height the
     descenders of g, y and p hang ~0.2em below it, and an italic serif final
     letter (the t in Walmart) overhangs on the right. Pad the mask out on both
     sides and pull the layout back with matching negative margins, so the
     glyphs are never cut and nothing else moves. */
  padding: 0 0.14em 0.24em 0;
  margin: 0 -0.14em -0.24em 0;
}
.line-clip > span {
  display: block;
  transform: translate3d(0, 110%, 0);
  transition: transform var(--dur-5) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.is-in .line-clip > span,
.line-clip.is-in > span { transform: translate3d(0, 0, 0); }

/* No-JS safety: everything visible */
.no-js [data-reveal] { opacity: 1; transform: none; }
.no-js .line-clip > span { transform: none; }