/* =====================================================================
   Arete Technologies — Midnight Bauhaus
   Deep indigo surface, Instrument Serif display, JetBrains Mono body,
   choreographed reveals, hairline dividers, no decorative shadows.
   ===================================================================== */

:root {
  color-scheme: dark;

  /* Color: tinted neutrals around hue 270 (blue-violet). No #000, no #fff. */
  --indigo-deep: oklch(13% 0.045 270);
  --indigo: oklch(17% 0.05 270);
  --indigo-raised: oklch(21% 0.05 270);
  --indigo-smoke: oklch(34% 0.035 270);
  --indigo-ash: oklch(64% 0.025 272);
  --indigo-bone: oklch(94% 0.008 270);
  --indigo-bone-dim: oklch(86% 0.012 270);
  --accent: oklch(72% 0.18 295);
  --accent-soft: oklch(72% 0.18 295 / 0.18);
  --accent-deep: oklch(58% 0.2 295);

  /* Type */
  --font-display: "Instrument Serif", "Times New Roman", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* Scale */
  --step-1: clamp(0.6875rem, 0.66rem + 0.13vw, 0.75rem);
  --step-2: clamp(0.8125rem, 0.78rem + 0.15vw, 0.875rem);
  --step-3: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem);
  --step-4: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --step-5: clamp(1.5rem, 1.2rem + 1.4vw, 2.25rem);
  --step-6: clamp(2.25rem, 1.5rem + 3vw, 3.5rem);
  --step-display: clamp(3.25rem, 1.6rem + 8vw, 7.5rem);

  /* Layout */
  --gutter: clamp(1.5rem, 1rem + 3vw, 4rem);
  --shell: 1280px;
  --hairline: 1px solid color-mix(in oklab, var(--indigo-bone) 14%, transparent);
  --hairline-strong: 1px solid color-mix(in oklab, var(--indigo-bone) 26%, transparent);

  /* Motion */
  --ease-out-quart: cubic-bezier(0.165, 0.84, 0.44, 1);
  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--indigo-deep);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--indigo-deep);
  color: var(--indigo-bone);
  font-family: var(--font-mono);
  font-size: var(--step-3);
  line-height: 1.6;
  font-feature-settings: "ss01", "calt";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection {
  background: var(--accent);
  color: var(--indigo-deep);
}

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

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

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

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--indigo-deep);
  font-family: var(--font-mono);
  font-size: var(--step-2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  z-index: 100;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* ---------- Header / nav ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--gutter);
  background: color-mix(in oklab, var(--indigo-deep) 86%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 320ms var(--ease-out-quart),
    background-color 320ms var(--ease-out-quart);
}
.site-header.is-scrolled {
  border-bottom-color: color-mix(in oklab, var(--indigo-bone) 10%, transparent);
  background: color-mix(in oklab, var(--indigo-deep) 92%, transparent);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--indigo-bone);
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border: 1px solid color-mix(in oklab, var(--indigo-bone) 32%, transparent);
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-style: italic;
  letter-spacing: 0;
  color: var(--indigo-bone);
  text-transform: none;
  transition: border-color 240ms var(--ease-out-quart), color 240ms var(--ease-out-quart);
}
.brand:hover .brand-mark {
  border-color: var(--accent);
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 0.6rem + 1.5vw, 2rem);
  font-family: var(--font-mono);
  font-size: var(--step-2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--indigo-bone-dim);
}
.site-nav a {
  position: relative;
  padding: 0.25rem 0;
  transition: color 240ms var(--ease-out-quart);
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -2px;
  height: 1px;
  background: var(--accent);
  transition: right 320ms var(--ease-out-quart);
}
.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--indigo-bone);
}
.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  right: 0;
}
.nav-cta {
  color: var(--accent) !important;
}
.nav-cta::after {
  background: var(--accent);
}

@media (max-width: 720px) {
  .brand-name {
    display: none;
  }
  .site-nav {
    gap: 1rem;
  }
  .site-nav a:not(.nav-cta) {
    display: none;
  }
}

/* ---------- Sections ---------- */
section {
  position: relative;
  padding: clamp(5rem, 4rem + 6vw, 9rem) var(--gutter);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  margin: 0 0 1.75rem;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--indigo-ash);
}
.kicker-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 14%, transparent);
}
.kicker-meta {
  color: var(--indigo-smoke);
  margin-left: 0.25rem;
}

.section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--step-6);
  line-height: 1;
  letter-spacing: -0.015em;
  color: var(--indigo-bone);
}
.section-title em {
  font-style: italic;
  color: var(--accent);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  padding-top: clamp(7rem, 5rem + 6vw, 11rem);
  padding-bottom: clamp(3rem, 2rem + 3vw, 5rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.hero-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 25% 28%, color-mix(in oklab, var(--accent) 9%, transparent), transparent 55%),
    radial-gradient(ellipse at 80% 80%, color-mix(in oklab, var(--indigo-raised) 60%, transparent), transparent 55%),
    linear-gradient(180deg, transparent 70%, color-mix(in oklab, var(--indigo-deep) 60%, transparent));
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1180px;
}

.hero-kicker {
  margin-bottom: clamp(2rem, 1rem + 3vw, 3.5rem);
}

.hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--step-display);
  line-height: 0.92;
  letter-spacing: -0.02em;
  color: var(--indigo-bone);
}
.hero-title em {
  font-style: italic;
  color: var(--accent);
}
.hero-line {
  display: block;
  overflow: hidden;
}
.hero-word {
  display: inline-block;
  margin-right: 0.25em;
  transform: translateY(110%);
  opacity: 0;
  transition: transform 900ms var(--ease-out-expo), opacity 600ms var(--ease-out-quart);
}
.hero-word:last-child {
  margin-right: 0;
}
.hero.is-ready .hero-word {
  transform: translateY(0);
  opacity: 1;
}

.hero-lede {
  max-width: 56ch;
  margin: clamp(2rem, 1.2rem + 2vw, 3rem) 0 0;
  font-family: var(--font-mono);
  font-size: var(--step-3);
  line-height: 1.7;
  color: var(--indigo-bone-dim);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 700ms var(--ease-out-quart), transform 700ms var(--ease-out-quart);
}
.hero.is-ready .hero-lede {
  opacity: 1;
  transform: translateY(0);
}

.hero-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-top: clamp(2rem, 1.2rem + 2vw, 3rem);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 700ms var(--ease-out-quart), transform 700ms var(--ease-out-quart);
}
.hero.is-ready .hero-actions {
  opacity: 1;
  transform: translateY(0);
}

.hero-meta {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, auto) 1fr auto;
  gap: clamp(1.25rem, 0.5rem + 2vw, 3rem);
  align-items: end;
  padding-top: clamp(3rem, 2rem + 3vw, 5rem);
  border-top: var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--indigo-ash);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 700ms var(--ease-out-quart) 200ms,
    transform 700ms var(--ease-out-quart) 200ms;
}
.hero.is-ready .hero-meta {
  opacity: 1;
  transform: translateY(0);
}
.hero-meta > div {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.meta-label {
  color: var(--indigo-smoke);
  font-size: 0.6875rem;
}
.meta-value {
  color: var(--indigo-bone-dim);
  font-weight: 500;
}
.hero-meta-spacer {
  display: block;
}
.hero-meta-scroll {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--indigo-bone-dim);
}
.scroll-line {
  display: block;
  width: 56px;
  height: 1px;
  background: linear-gradient(90deg, var(--indigo-smoke), var(--accent));
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--indigo-bone);
  transform: translateX(-100%);
  animation: scroll-pulse 2.4s var(--ease-out-quart) infinite;
}
@keyframes scroll-pulse {
  0% { transform: translateX(-100%); }
  60% { transform: translateX(100%); }
  100% { transform: translateX(100%); }
}

@media (max-width: 720px) {
  .hero-meta {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem 1.5rem;
  }
  .hero-meta-spacer,
  .hero-meta-scroll {
    display: none;
  }
}

/* ---------- Buttons ---------- */
.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 1rem 1.625rem;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color 280ms var(--ease-out-quart),
    border-color 280ms var(--ease-out-quart),
    color 280ms var(--ease-out-quart);
}
.button-arrow {
  display: inline-block;
  font-family: var(--font-mono);
  transition: transform 320ms var(--ease-out-quart);
}
.button.primary {
  background: var(--accent);
  color: var(--indigo-deep);
  border-color: var(--accent);
}
.button.primary:hover,
.button.primary:focus-visible {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  color: var(--indigo-bone);
}
.button.primary:hover .button-arrow,
.button.primary:focus-visible .button-arrow {
  transform: translate(2px, -2px);
}
.button.ghost {
  background: transparent;
  color: var(--indigo-bone);
  border-color: color-mix(in oklab, var(--indigo-bone) 28%, transparent);
}
.button.ghost:hover,
.button.ghost:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}
.button.ghost:hover .button-arrow,
.button.ghost:focus-visible .button-arrow {
  transform: translateY(2px);
}

/* ---------- Linkout ---------- */
.linkout {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--indigo-bone);
  padding-bottom: 2px;
  border-bottom: 1px solid color-mix(in oklab, var(--indigo-bone) 22%, transparent);
  transition: color 240ms var(--ease-out-quart), border-color 240ms var(--ease-out-quart);
}
.linkout-arrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1em;
  transition: transform 320ms var(--ease-out-quart);
}
.linkout:hover,
.linkout:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.linkout:hover .linkout-arrow,
.linkout:focus-visible .linkout-arrow {
  transform: translate(2px, -2px) rotate(8deg);
}
.linkout-strong {
  font-size: var(--step-3);
}

/* ---------- Reveal ---------- */
.reveal,
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms var(--ease-out-quart),
    transform 700ms var(--ease-out-quart);
}
.reveal.is-visible,
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Studio statement (inverted band) ---------- */
.statement {
  background: var(--indigo-bone);
  color: var(--indigo-deep);
  padding-block: clamp(6rem, 4rem + 8vw, 11rem);
  border-top: 1px solid color-mix(in oklab, var(--indigo-deep) 8%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--indigo-deep) 8%, transparent);
}
.statement .kicker {
  color: color-mix(in oklab, var(--indigo-deep) 56%, transparent);
}
.statement .kicker-dot {
  background: var(--accent-deep);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent-deep) 14%, transparent);
}
.statement-inner {
  max-width: 64rem;
  margin: 0 auto;
}
.statement-body {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--step-6);
  line-height: 1.12;
  letter-spacing: -0.012em;
  color: var(--indigo-deep);
  max-width: 28ch;
}
@media (min-width: 900px) {
  .statement-body {
    max-width: 30ch;
  }
}

/* ---------- Products ---------- */
.products {
  padding-block: clamp(6rem, 4rem + 8vw, 11rem);
}
.products-header {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: clamp(3.5rem, 2rem + 5vw, 6rem);
  max-width: 56rem;
}

/* Featured row (Fresco) */
.product-feature {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 1rem + 2vw, 3rem);
  padding: clamp(1.75rem, 1rem + 2vw, 3rem) 0 clamp(2.5rem, 1.5rem + 3vw, 4.5rem);
  border-top: var(--hairline-strong);
  border-bottom: var(--hairline);
  margin-bottom: 0;
}
@media (min-width: 960px) {
  .product-feature {
    grid-template-columns: 1fr 1.05fr;
    align-items: stretch;
    gap: clamp(2rem, 1rem + 4vw, 5rem);
  }
}
.product-feature-meta {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--indigo-ash);
  grid-column: 1 / -1;
}
.product-index {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 500;
}
.product-tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--indigo-ash);
}
.product-feature-body {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.product-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.5rem, 1.5rem + 4vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--indigo-bone);
}
.product-description {
  margin: 0;
  max-width: 56ch;
  font-family: var(--font-mono);
  font-size: var(--step-3);
  line-height: 1.65;
  color: var(--indigo-bone-dim);
}
.product-feature-links {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
}

/* Featured visual */
.product-feature-visual {
  align-self: center;
  width: 100%;
}
.visual-frame {
  position: relative;
  aspect-ratio: 4 / 3;
  border: 1px solid color-mix(in oklab, var(--indigo-bone) 12%, transparent);
  background:
    linear-gradient(180deg, var(--indigo-raised), var(--indigo));
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow: hidden;
}
.visual-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 23px,
      color-mix(in oklab, var(--indigo-bone) 4%, transparent) 23px,
      color-mix(in oklab, var(--indigo-bone) 4%, transparent) 24px
    );
  pointer-events: none;
}
.visual-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 1fr;
  gap: 6px;
  flex: 1;
}
.visual-cell {
  background: color-mix(in oklab, var(--indigo-bone) 6%, transparent);
  border: 1px solid color-mix(in oklab, var(--indigo-bone) 8%, transparent);
}
.visual-cell.wide {
  grid-column: span 2;
}
.visual-cell.tall {
  grid-row: span 2;
}
.visual-cell.accent {
  background: color-mix(in oklab, var(--accent) 36%, transparent);
  border-color: var(--accent);
}
.visual-caption {
  position: relative;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--indigo-ash);
  padding-top: 0.625rem;
  border-top: 1px dashed color-mix(in oklab, var(--indigo-bone) 12%, transparent);
}
.visual-caption-value {
  color: var(--indigo-bone-dim);
}

/* Product list (rows) */
.product-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.product-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: clamp(1rem, 0.5rem + 2vw, 3rem);
  padding: clamp(2rem, 1rem + 3vw, 3.5rem) 0;
  border-bottom: var(--hairline);
  transition: background-color 300ms var(--ease-out-quart);
}
.product-row:hover {
  background: color-mix(in oklab, var(--indigo-raised) 30%, transparent);
}
.product-row .product-index {
  padding-top: 0.6rem;
  align-self: start;
  min-width: 3.25rem;
  transition: color 280ms var(--ease-out-quart);
}
.product-row:hover .product-index {
  color: var(--accent);
}
.product-row-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.product-row-body .product-tag {
  margin: 0 0 0.25rem;
  color: var(--indigo-ash);
}
.product-row-body .product-name {
  font-size: clamp(1.75rem, 1rem + 2.4vw, 2.875rem);
  line-height: 1;
  transition: transform 360ms var(--ease-out-quart),
    color 280ms var(--ease-out-quart);
}
.product-row:hover .product-name {
  transform: translateX(6px);
}
.product-row-body .product-description {
  font-size: var(--step-2);
}
.product-row-link {
  align-self: start;
  margin-top: 0.6rem;
  white-space: nowrap;
}
@media (max-width: 760px) {
  .product-row {
    grid-template-columns: auto 1fr;
    gap: 1rem 1.25rem;
  }
  .product-row-link {
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: 0.25rem;
  }
}

/* ---------- Contact ---------- */
.contact {
  padding-block: clamp(6rem, 4rem + 8vw, 11rem);
  border-top: var(--hairline);
}
.contact-inner {
  max-width: 60rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.contact-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.75rem, 1.5rem + 5vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--indigo-bone);
}
.contact-title em {
  font-style: italic;
  color: var(--accent);
}
.contact-body {
  margin: 0;
  max-width: 60ch;
  font-family: var(--font-mono);
  font-size: var(--step-3);
  line-height: 1.65;
  color: var(--indigo-bone-dim);
}
.contact-cta {
  align-self: flex-start;
  margin-top: 1rem;
}

/* ---------- Footer ---------- */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 2rem var(--gutter) 2.5rem;
  border-top: var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--step-1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--indigo-ash);
}
.footer-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--indigo-bone-dim);
}
.footer-meta {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
  .hero-word {
    transform: none;
    opacity: 1;
  }
  .hero-lede,
  .hero-actions,
  .hero-meta,
  .reveal,
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
  .scroll-line::after {
    display: none;
  }
}