/* ==========================================================================
   Fabrig — landing page styles

   The layout is matched to the 1672 × 941 design comp. At that width and
   above, every measurement below is the comp's value in CSS pixels.
   Between 1100px and 1672px the hero scales proportionally through the
   --px unit (1 design pixel). Below 1100px the layout stacks.
   ========================================================================== */

/* ---------- Fonts: Inter Display (SIL OFL 1.1, see fonts/OFL.txt) ---------- */
@font-face {
  font-family: "Inter Display";
  src: url("../fonts/InterDisplay-Regular.woff") format("woff");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter Display";
  src: url("../fonts/InterDisplay-Medium.woff") format("woff");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter Display";
  src: url("../fonts/InterDisplay-SemiBold.woff") format("woff");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter Display";
  src: url("../fonts/InterDisplay-Bold.woff") format("woff");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* ---------- Design tokens ---------- */
:root {
  color-scheme: dark;

  /* colour */
  --color-bg: #01061b;
  --color-text: #fafafa;
  --color-text-nav: #d2def6;
  --color-text-chip: #d5e1f4;
  --color-text-soft: #c3d2f2;
  --color-text-muted: #c2cce6;
  --color-accent: #fb7f2e;
  --color-accent-fill: #fd7a2a;
  --color-accent-fill-hover: #ff8a3d;
  --color-accent-ink: #0a0f22;
  --color-line: rgba(140, 170, 230, 0.17);
  --color-line-soft: rgba(140, 170, 230, 0.09);
  --color-divider: rgba(130, 150, 220, 0.16);
  --color-outline: rgba(240, 241, 245, 0.95);
  --color-chip-border: rgba(160, 178, 225, 0.42);

  /* type */
  --font-sans: "Inter Display", "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;

  /* layout */
  --page-max: 1672px;
  --gutter-start: clamp(20px, 5.742%, 96px);
  --gutter-end: clamp(20px, 4.605%, 77px);
  --header-height: 116px;

  /* one design pixel: 1px at ≥1672px wide, proportionally smaller below */
  --px: min(1px, calc(100vw / 1672));
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  /* ambient light, fitted to the comp (topmost layer first) */
  background-image:
    /* faint lift behind the feature strip */
    radial-gradient(calc(833 * var(--px)) calc(205 * var(--px)) at calc(50% - 55 * var(--px)) calc(921 * var(--px)),
      rgba(0, 16, 56, 0.295) 0%, rgba(0, 16, 56, 0.04) 48.6%, rgba(0, 16, 56, 0) 100%),
    /* low haze on the right */
    radial-gradient(calc(1113 * var(--px)) calc(236 * var(--px)) at calc(100% + 112 * var(--px)) calc(819 * var(--px)),
      rgba(3, 6, 36, 0.9) 0%, rgba(3, 6, 36, 0.697) 68.8%, rgba(3, 6, 36, 0) 100%),
    /* blue halo behind the illustration */
    radial-gradient(calc(514 * var(--px)) calc(421 * var(--px)) at calc(50% + 219 * var(--px)) calc(520 * var(--px)),
      rgba(0, 29, 99, 0.407) 0%, rgba(0, 29, 99, 0.184) 42.3%, rgba(0, 29, 99, 0) 100%),
    /* violet glow on the right edge */
    radial-gradient(calc(809 * var(--px)) calc(1154 * var(--px)) at calc(100% + 39 * var(--px)) calc(778 * var(--px)),
      rgba(33, 2, 134, 0.994) 0%, rgba(33, 2, 134, 0.257) 30.1%, rgba(33, 2, 134, 0) 100%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

h1,
h2,
p,
ul {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 10;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--color-accent-fill);
  color: var(--color-accent-ink);
  font-weight: 600;
}
.skip-link:focus {
  top: 16px;
}

.container {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter-start) var(--gutter-end);
}

/* ---------- Buttons ---------- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  white-space: nowrap;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}
.button__icon {
  flex: none;
  height: auto;
}

.button--primary {
  background: var(--color-accent-fill);
  color: var(--color-accent-ink);
  font-weight: 600;
}
.button--primary:hover {
  background: var(--color-accent-fill-hover);
  box-shadow: 0 8px 28px rgba(253, 122, 42, 0.28);
}

.button--outline {
  border: 1.5px solid var(--color-outline);
  color: var(--color-text);
  font-weight: 500;
}
.button--outline:hover {
  background: rgba(255, 255, 255, 0.06);
}

.button--small {
  height: 49px;
  padding: 0 17px 0 20px;
  gap: 6.5px;
  font-size: 16.4px;
}
.button--small .button__icon {
  width: 13px;
}

.button--large {
  height: max(48px, calc(60 * var(--px)));
  font-size: max(16px, calc(20 * var(--px)));
}
.button--primary.button--large {
  padding: 0 calc(34 * var(--px)) 0 calc(33 * var(--px));
  gap: calc(11.5 * var(--px));
  letter-spacing: 0.4px;
}
.button--primary.button--large .button__icon {
  width: max(14px, calc(17 * var(--px)));
}
.button--outline.button--large {
  padding: 0 calc(26 * var(--px)) 0 calc(28 * var(--px));
  gap: calc(8 * var(--px));
  font-size: max(15px, calc(18.6 * var(--px)));
}
.button--outline.button--large .button__icon {
  width: max(24px, calc(30 * var(--px)));
}

/* ---------- Header ---------- */
.site-header {
  position: relative;
  z-index: 2;
  border-bottom: 1px solid var(--color-line);
  box-shadow: 0 1px 0 var(--color-line-soft);
}

.site-header__inner {
  display: flex;
  align-items: center;
  height: var(--header-height);
  padding-top: 10px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14.5px;
  flex: none;
  margin-left: -0.7px;
}
.brand__mark {
  width: 86.84px;
  height: auto;
  margin-top: -15.4px;
}
.brand__name {
  font-size: 44px;
  line-height: 1;
  font-weight: 700;
}

.primary-nav {
  margin-left: calc(106 * var(--px));
  padding-top: 2px;
}
.primary-nav__list {
  display: flex;
  align-items: center;
  gap: calc(64 * var(--px));
}
.primary-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  font-size: 20px;
  line-height: 1;
  font-weight: 500;
  white-space: nowrap;
  color: var(--color-text-nav);
  transition: color 0.2s ease;
}
.primary-nav__link:hover {
  color: #ffffff;
}
.primary-nav__chevron {
  width: 16px;
  height: 10px;
  /* the chevron hangs into the gap, as in the comp */
  margin-right: -10px;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 35px;
  margin-left: auto;
}
.icon-link {
  display: block;
  border-radius: 50%;
}
.icon-link img {
  width: 34px;
  height: 34px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  min-height: calc(644 * var(--px));
}

.hero__copy {
  position: relative;
  z-index: 1;
  padding-top: calc(82 * var(--px));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: calc(14 * var(--px));
  height: max(36px, calc(47.5 * var(--px)));
  padding: 2px calc(22 * var(--px)) 0 calc(21 * var(--px));
  border: 1px solid var(--color-chip-border);
  border-radius: 999px;
  font-size: max(13px, calc(17 * var(--px)));
  font-weight: 400;
  line-height: 1;
  color: var(--color-text-chip);
}
.eyebrow__icon {
  width: max(10px, calc(12 * var(--px)));
  height: auto;
  filter: drop-shadow(0 0 6px rgba(255, 150, 70, 0.35));
}

.hero__title {
  margin-top: calc(16 * var(--px));
  font-size: calc(86 * var(--px));
  line-height: calc(86.3 * var(--px));
  font-weight: 700;
}
.hero__line {
  display: block;
  white-space: nowrap;
}
/* optical tracking per line, matched to the comp */
.hero__line:nth-child(2) { letter-spacing: calc(0.7 * var(--px)); }
.hero__line:nth-child(3) { letter-spacing: calc(0.45 * var(--px)); }
.hero__accent {
  font-style: normal;
  color: var(--color-accent);
}

.hero__lede {
  max-width: calc(700 * var(--px));
  margin-top: calc(20 * var(--px));
  font-size: calc(26.6 * var(--px));
  line-height: calc(36 * var(--px));
  font-weight: 400;
  letter-spacing: calc(0.43 * var(--px));
  color: var(--color-text-soft);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: calc(23 * var(--px));
  margin-top: calc(33 * var(--px));
  margin-left: calc(2 * var(--px));
}

/* Illustration: the mark, its floor reflection, and the stage behind both.
   --v is one design pixel of the illustration. */
.hero__visual {
  --v: var(--px);
  position: relative;
  width: calc(478 * var(--v));
  margin-top: calc(91 * var(--v));
  margin-right: calc(95 * var(--v));
}
.hero__visual::before {
  /* rings, perspective floor and pools of light */
  content: "";
  position: absolute;
  z-index: -1;
  left: calc(-562 * var(--v));
  top: calc(-91 * var(--v));
  width: calc(1700 * var(--v));
  height: calc(645 * var(--v));
  background: url("../assets/hero-stage.svg") no-repeat 0 0 / 100% 100%;
  pointer-events: none;
}
.hero__mark {
  position: relative;
  width: 100%;
  height: auto;
}
.hero__reflection {
  position: absolute;
  left: 0;
  top: calc(402 * var(--v));
  width: 100%;
  height: auto;
  transform: scaleY(-1);
  opacity: 0.55;
  filter: blur(calc(7 * var(--v)));
  -webkit-mask-image: linear-gradient(to top, #000 0%, rgba(0, 0, 0, 0.4) 12%, rgba(0, 0, 0, 0.1) 22%, transparent 32%);
  mask-image: linear-gradient(to top, #000 0%, rgba(0, 0, 0, 0.4) 12%, rgba(0, 0, 0, 0.1) 22%, transparent 32%);
}

/* ---------- Feature strip ---------- */
.features {
  position: relative;
  border-top: 1px solid var(--color-line);
}

.features__list {
  display: grid;
  grid-template-columns: minmax(0, 364fr) minmax(0, 383fr) minmax(0, 411fr) minmax(0, 341fr);
  align-items: start;
  padding-top: 31px;
  padding-bottom: 60px;
}

.feature {
  display: flex;
  align-items: flex-start;
  gap: 27px;
  min-height: 87px;
}
.feature + .feature {
  padding-left: 45px;
  border-left: 1px solid var(--color-divider);
}

.feature__icon {
  flex: none;
  height: auto;
}
.feature__icon--bolt {
  width: 29px;
  margin-top: 9px;
}
.feature__icon--box {
  width: 46px;
  margin-top: 9px;
}
.feature__icon--robot {
  width: 48.2px;
  margin-top: 9px;
}
.feature__icon--shield {
  width: 41.4px;
  margin-top: 8px;
}

.feature__body {
  padding-top: 12px;
}
.feature__title {
  font-size: 19.5px;
  line-height: 23px;
  font-weight: 600;
  white-space: nowrap;
  color: var(--color-text);
}
.feature__text {
  margin-top: 9px;
  font-size: 16.3px;
  line-height: 1.3;
  font-weight: 400;
  white-space: nowrap;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* Feature strip: let descriptions wrap, then go two by two. */
@media (max-width: 1640px) {
  .feature__text {
    white-space: normal;
  }
}
@media (max-width: 1280px) {
  .features__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 28px;
  }
  .feature:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }
}

/* Header: the nav moves to its own scrollable row. */
@media (max-width: 1180px) {
  :root {
    --header-height: auto;
  }
  .site-header__inner {
    flex-wrap: wrap;
    row-gap: 4px;
    padding-top: 16px;
    padding-bottom: 6px;
  }
  .brand__mark {
    width: 64px;
    margin-top: -8px;
  }
  .brand__name {
    font-size: 34px;
  }
  .primary-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .primary-nav__list {
    gap: 40px;
    padding: 10px 0;
  }
  .primary-nav__link {
    font-size: 17px;
  }
  .primary-nav__chevron {
    margin-right: 0;
  }
}

/* Hero: stack the copy above the illustration. */
@media (max-width: 1100px) {
  :root {
    --px: 1px;
  }
  body {
    background-image:
      radial-gradient(120% 55% at 100% 72%, rgba(33, 2, 134, 0.6) 0%, rgba(33, 2, 134, 0) 70%),
      radial-gradient(90% 40% at 55% 68%, rgba(0, 29, 99, 0.4) 0%, rgba(0, 29, 99, 0) 70%);
  }
  .hero__inner {
    display: block;
    min-height: 0;
  }
  .hero__copy {
    padding-top: 56px;
  }
  .hero__title {
    font-size: clamp(32px, 9.2vw, 80px);
    line-height: 1.02;
  }
  .hero__lede {
    max-width: 34em;
    font-size: clamp(18px, 2.6vw, 24px);
    line-height: 1.4;
  }
  .hero__visual {
    --v: calc(min(478px, 100vw - 64px) / 478);
    margin: 64px auto 0;
    padding-bottom: calc(150 * var(--v));
  }
}

@media (max-width: 760px) {
  .site-header__actions {
    gap: 16px;
  }
  .site-header__actions .button--small {
    height: 42px;
    padding: 0 14px 0 16px;
    font-size: 15px;
  }
  .brand {
    gap: 10px;
  }
  .brand__mark {
    width: 52px;
  }
  .brand__name {
    font-size: 28px;
  }
  .hero__line {
    white-space: normal;
  }
  .hero__line:nth-child(n) {
    letter-spacing: 0;
  }
  .eyebrow {
    height: auto;
    min-height: 36px;
    padding: 8px 16px;
  }
  .features__list {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 24px;
    padding-bottom: 48px;
  }
  .feature + .feature {
    padding-left: 0;
    border-left: 0;
  }
  .feature {
    min-height: 0;
    gap: 20px;
  }
  .feature__icon {
    width: 44px;
    height: 46px;
    margin-top: 4px;
    object-fit: contain;
  }
  .feature__title {
    white-space: normal;
  }
  .primary-nav__list {
    gap: 28px;
  }
  .primary-nav__link {
    font-size: 16px;
    gap: 10px;
  }
}

@media (max-width: 420px) {
  .site-header__actions .icon-link {
    display: none;
  }
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .button,
  .primary-nav__link {
    transition: none;
  }
}