/* ==========================================================================
   LiderMAG — reset, typography, layout primitives
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  /* Safety net (2026-09-01): a stray nowrap/absolute piece inside the page
     flow must never mint a horizontal scrollbar or user-pannable dead space.
     On <body> this propagates to the viewport and the sticky nav keeps
     working; the same rule on <html> BREAKS position:sticky — verified in
     Chrome, don't move it. */
  overflow-x: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  letter-spacing: var(--tr-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  overflow-x: hidden;
}

/* Lenis */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 700; letter-spacing: var(--tr-head); line-height: var(--lh-snug); }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }

/* Every inline icon ships without intrinsic dimensions — give it a base size. */
.icon {
  width: 18px;
  height: 18px;
  flex: none;
  display: inline-block;
  vertical-align: middle;
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }

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

:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 3px;
  border-radius: 3px;
}
:focus:not(:focus-visible) { outline: none; }

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

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap--narrow { max-width: 940px; }
.wrap--wide { max-width: 1560px; }

.section {
  position: relative;
  padding-block: var(--section-y);
  background: var(--bg);
  color: var(--fg);
}
.section--tight { padding-block: var(--section-y-tight); }
.section--flush-top { padding-top: 0; }
.section--flush-bottom { padding-bottom: 0; }

.stack > * + * { margin-top: var(--flow, var(--s-4)); }

.grid { display: grid; gap: var(--s-6); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1000px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
}

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

/* Condensed display face: tracking sits near zero — Inter's negative
   display tracking would weld condensed letterforms together. */
.display {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  letter-spacing: -0.012em;
  font-weight: 870;
}
.h1 { font-family: var(--font-display); font-size: var(--fs-h1); line-height: 1.04; letter-spacing: -0.012em; font-weight: 850; }
.h2 { font-family: var(--font-display); font-size: var(--fs-h2); line-height: 1.08; letter-spacing: -0.008em; font-weight: 800; }
.h3 { font-family: var(--font-display); font-size: var(--fs-h3); line-height: 1.16; letter-spacing: -0.004em; font-weight: 750; }
.h4 { font-size: var(--fs-h4); line-height: 1.32; letter-spacing: -0.016em; font-weight: 600; }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.5;
  color: var(--fg-2);
  letter-spacing: -0.014em;
  max-width: var(--maxw-text);
}
.body { color: var(--fg-2); max-width: var(--maxw-text); }
.small { font-size: var(--fs-sm); color: var(--fg-3); }
.muted { color: var(--fg-3); }

.mono {
  font-family: var(--font-mono);
  font-feature-settings: 'tnum' 1;
  letter-spacing: 0;
}
.tnum { font-variant-numeric: tabular-nums; }

/* Eyebrow: a small mono label above headings (2026-09-01: the tick-marked
   dimension-line device that used to precede it was removed by request). */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: var(--tr-eyebrow);
  text-transform: uppercase;
  color: var(--accent-text);
  margin: 0;
}

/* Section heading block */
.sec-head { max-width: 780px; }
.sec-head .h2 { margin-top: var(--s-4); }
.sec-head .lead { margin-top: var(--s-5); }
.sec-head--center { margin-inline: auto; text-align: center; }
.sec-head--center .eyebrow { justify-content: center; }
.sec-head--center .lead { margin-inline: auto; }

/* --------------------------------------------------------------------------
   Rules & dimension lines (engineering motif)
   -------------------------------------------------------------------------- */

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

.dim-rule {
  --dim-color: var(--rule-strong);
  position: relative;
  height: 11px;
  background:
    linear-gradient(var(--dim-color), var(--dim-color)) left center / 100% 1px no-repeat;
}
.dim-rule::before,
.dim-rule::after {
  content: '';
  position: absolute;
  top: 0;
  width: 1px;
  height: 11px;
  background: var(--dim-color);
}
.dim-rule::before { left: 0; }
.dim-rule::after { right: 0; }

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

.btn {
  --btn-bg: var(--fg);
  --btn-fg: var(--bg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  min-height: 40px;
  padding: 0 var(--s-5);
  border-radius: var(--r-full);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition: transform var(--d-press) var(--ease-out),
              background-color var(--d-fast) var(--ease-out),
              color var(--d-fast) var(--ease-out),
              border-color var(--d-fast) var(--ease-out),
              box-shadow var(--d-fast) var(--ease-out);
}
.btn:active { transform: scale(0.97); }
.btn svg { flex: none; }

.btn--primary { --btn-bg: var(--red); --btn-fg: #fff; }
.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--fg);
  border: 1px solid var(--rule-strong);
}
.btn--light { --btn-bg: #fff; --btn-fg: var(--ink); }
.btn--lg { min-height: 46px; padding-inline: var(--s-6); font-size: 0.95rem; }
.btn--sm { min-height: 34px; padding-inline: var(--s-4); font-size: var(--fs-xs); }

@media (hover: hover) and (pointer: fine) {
  .btn--primary:hover { --btn-bg: #E32200; box-shadow: 0 6px 20px rgba(250, 38, 0, 0.28); }
  .btn--ghost:hover { --btn-bg: var(--bg-sunk); border-color: var(--fg-4); }
  .btn--light:hover { --btn-bg: #F0EFEC; }
  .btn:not(.btn--primary):not(.btn--ghost):not(.btn--light):hover { opacity: 0.86; }
}

/* Text link with an animated underline + arrow */
.link {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--accent-text);
}
.link .link__line {
  display: inline-block;
  position: relative;
}
.link .link__line::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--d-base) var(--ease-out);
}
.link svg { transition: transform var(--d-base) var(--ease-out); }
@media (hover: hover) and (pointer: fine) {
  .link:hover .link__line::after { transform: scaleX(1); }
  .link:hover svg { transform: translateX(3px); }
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */

.card {
  position: relative;
  background: var(--bg-raised);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: var(--s-8);
  transition: transform var(--d-base) var(--ease-out),
              box-shadow var(--d-base) var(--ease-out),
              border-color var(--d-base) var(--ease-out);
}
.card--flat { background: transparent; border-color: transparent; padding: 0; }
@media (hover: hover) and (pointer: fine) {
  .card--lift:hover { transform: translateY(-4px); box-shadow: var(--sh-3); border-color: var(--rule-strong); }
}

/* --------------------------------------------------------------------------
   Utility
   -------------------------------------------------------------------------- */

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--s-4);
  z-index: 200;
  padding: var(--s-3) var(--s-5);
  border-radius: var(--r-sm);
  background: var(--red);
  color: #fff;
  font-weight: 600;
  transition: top var(--d-base) var(--ease-out);
}
.skip-link:focus { top: var(--s-4); }

.center { text-align: center; }
.nowrap { white-space: nowrap; }
.full-bleed { width: 100vw; margin-left: 50%; transform: translateX(-50%); }

/* Entrance animation hooks — JS adds .is-in; CSS-only fallback keeps content visible. */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 620ms var(--ease-out), transform 620ms var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* The hidden attribute must always win, even over display-setting classes. */
[hidden] { display: none !important; }