/* =========================================================================
   Margareto Software — monochromatic, editorial, minimalist
   ========================================================================= */

:root {
  --color-bg: #ffffff;
  --color-ink: #000000;
  --color-muted: #6b6b6b;
  --color-hairline: #e5e5e5;
  --color-surface-alt: #fafafa;

  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, sans-serif;

  --measure: 60ch;
  --container: 1200px;
  --gutter: clamp(20px, 4vw, 40px);

  --step-0: clamp(15px, 0.9vw + 13px, 17px);
  --step-1: clamp(18px, 1vw + 15px, 20px);
  --step-2: clamp(22px, 1.5vw + 17px, 28px);
  --step-3: clamp(32px, 3vw + 20px, 48px);
  --step-4: clamp(44px, 6vw + 20px, 88px);

  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --dur-fast: 150ms;
  --dur-base: 200ms;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-bg);
}

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

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

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

h1,
h2,
h3,
p,
dl,
dd {
  margin: 0;
}

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

/* =========================================================================
   Skip link
   ========================================================================= */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  padding: 10px 14px;
  background: var(--color-ink);
  color: var(--color-bg);
  font-weight: 700;
  z-index: 100;
  transition: top var(--dur-base) var(--ease);
}
.skip-link:focus {
  top: 16px;
}

/* =========================================================================
   Layout
   ========================================================================= */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section {
  padding: clamp(72px, 10vw, 140px) 0;
  border-top: 1px solid var(--color-hairline);
}

.section--alt {
  background: var(--color-surface-alt);
}

.grid-two {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 64px);
}

@media (min-width: 820px) {
  .grid-two {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

/* =========================================================================
   Header
   ========================================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(6px);
  border-bottom: 1px solid var(--color-hairline);
}

.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
}

.wordmark {
  display: inline-flex;
  gap: 6px;
  letter-spacing: -0.01em;
  font-size: 18px;
}

.wordmark__name {
  font-weight: 900;
}

.wordmark__name--light {
  font-weight: 300;
}

.site-nav {
  display: flex;
  gap: clamp(14px, 3vw, 32px);
  font-size: 14px;
  font-weight: 400;
  white-space: nowrap;
}

@media (min-width: 480px) {
  .site-nav {
    font-size: 15px;
  }
}

.site-nav a {
  position: relative;
  padding: 4px 0;
  transition: color var(--dur-fast) var(--ease);
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--color-ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

/* =========================================================================
   Eyebrow / typography primitives
   ========================================================================= */
.eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 20px;
}

.section__title {
  font-size: var(--step-3);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 18ch;
}

.section__body {
  max-width: var(--measure);
  font-size: var(--step-1);
  line-height: 1.7;
  color: var(--color-ink);
  display: grid;
  gap: 1.1em;
}

/* =========================================================================
   Hero
   ========================================================================= */
.hero {
  padding: clamp(56px, 8vw, 120px) 0 clamp(72px, 10vw, 140px);
}

.hero__title {
  font-size: var(--step-4);
  line-height: 1;
  letter-spacing: -0.035em;
  display: grid;
  gap: 0.08em;
  margin-bottom: clamp(28px, 4vw, 44px);
  max-width: 16ch;
}

.hero__line {
  display: block;
}

.hero__line--black {
  font-weight: 900;
}

.hero__line--light {
  font-weight: 300;
  color: var(--color-muted);
}

.hero__lede {
  max-width: 52ch;
  font-size: var(--step-2);
  font-weight: 300;
  line-height: 1.45;
  margin-bottom: clamp(32px, 4vw, 48px);
  color: var(--color-ink);
}

/* =========================================================================
   Buttons / links
   ========================================================================= */
.button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.01em;
  border: 1px solid var(--color-ink);
  background: transparent;
  color: var(--color-ink);
  transition: background var(--dur-base) var(--ease),
    color var(--dur-base) var(--ease);
}

.button:hover,
.button:focus-visible {
  background: var(--color-ink);
  color: var(--color-bg);
}

.button .icon {
  width: 18px;
  height: 18px;
  transition: transform var(--dur-base) var(--ease);
}

.button:hover .icon,
.button:focus-visible .icon {
  transform: translateX(4px);
}

/* =========================================================================
   Products
   ========================================================================= */
.products {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(40px, 5vw, 64px);
  background: var(--color-hairline);
  border: 1px solid var(--color-hairline);
}

@media (min-width: 640px) {
  .products {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .products {
    grid-template-columns: repeat(4, 1fr);
  }
}

.product {
  background: var(--color-bg);
  padding: clamp(28px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: background var(--dur-base) var(--ease);
}

.product:hover {
  background: var(--color-surface-alt);
}

.product__name {
  display: flex;
  align-items: center;
  min-height: 52px;
  margin: 0 0 4px;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
}

.product__name--logo img {
  height: 52px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  object-position: left center;
}

.product__desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-muted);
  flex: 1;
}

.product__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-ink);
  align-self: flex-start;
  transition: gap var(--dur-base) var(--ease);
}

.product__link:hover,
.product__link:focus-visible {
  gap: 14px;
}

.icon-sm {
  width: 14px;
  height: 14px;
}

/* =========================================================================
   Contact
   ========================================================================= */
.contact__list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px 28px;
  font-size: var(--step-1);
}

.contact__list dt {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  padding-top: 6px;
}

.contact__list dd a {
  border-bottom: 1px solid var(--color-ink);
  transition: opacity var(--dur-fast) var(--ease);
}

.contact__list dd a:hover {
  opacity: 0.6;
}

/* =========================================================================
   Footer
   ========================================================================= */
.site-footer {
  border-top: 1px solid var(--color-hairline);
  padding: 40px 0 48px;
  font-size: 14px;
}

.site-footer__row {
  display: flex;
  flex-direction: column;
  gap: 20px;
  justify-content: space-between;
}

@media (min-width: 720px) {
  .site-footer__row {
    flex-direction: row;
    align-items: flex-end;
  }
}

.site-footer__name {
  font-weight: 700;
}

.site-footer__meta {
  color: var(--color-muted);
}

.site-footer__right {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.site-footer a {
  border-bottom: 1px solid currentColor;
}

/* =========================================================================
   Reveal-on-scroll
   ========================================================================= */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
}