/* ==========================================================================
   Aphelion Publications — main.css
   1. Design tokens
   2. Reset & base
   3. Typography primitives
   4. Layout primitives
   5. Components (buttons, rules, marks)
   6. Header & navigation
   7. Hero
   8. About & metrics
   9. Services
   10. Products (sticky showcase)
   11. Contact
   12. Footer
   13. Motion & reveal utilities
   14. Legal / prose pages
   15. Responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* Colour ------------------------------------------------------------- */
  --color-paper: #f6f3ee;
  --color-paper-raised: #efeae1;
  --color-paper-deep: #e6e0d5;
  --color-ink: #131110;
  --color-ink-muted: #5c554d;
  --color-ink-faint: #8c8377;
  --color-accent: #a85b2e;
  --color-accent-deep: #8a4623;
  --color-accent-wash: rgba(168, 91, 46, 0.1);
  --color-line: rgba(19, 17, 16, 0.14);
  --color-line-soft: rgba(19, 17, 16, 0.08);

  /* Inverted surface (footer, dark blocks) ----------------------------- */
  --color-inverse-surface: #131110;
  --color-inverse-ink: #f6f3ee;
  --color-inverse-muted: rgba(246, 243, 238, 0.62);
  --color-inverse-line: rgba(246, 243, 238, 0.16);

  /* Typography --------------------------------------------------------- */
  --font-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino,
    "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;

  --step--2: clamp(0.69rem, 0.67rem + 0.1vw, 0.75rem);
  --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.9rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  --step-1: clamp(1.2rem, 1.13rem + 0.35vw, 1.4rem);
  --step-2: clamp(1.45rem, 1.32rem + 0.65vw, 1.85rem);
  --step-3: clamp(1.8rem, 1.55rem + 1.2vw, 2.6rem);
  --step-4: clamp(2.2rem, 1.7rem + 2.4vw, 3.8rem);
  --step-5: clamp(2.7rem, 1.7rem + 4.6vw, 6rem);

  --leading-tight: 1.06;
  --leading-snug: 1.18;
  --leading-normal: 1.62;
  --tracking-tight: -0.022em;
  --tracking-wide: 0.14em;

  /* Space -------------------------------------------------------------- */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-s: 1rem;
  --space-m: 1.5rem;
  --space-l: 2.25rem;
  --space-xl: 3.5rem;
  --space-2xl: 5rem;
  --space-3xl: 7.5rem;
  --section-padding: clamp(4.5rem, 9vw, 9.5rem);

  /* Layout ------------------------------------------------------------- */
  --container-max: 1280px;
  --container-narrow: 780px;
  --gutter: clamp(1.25rem, 5vw, 4.5rem);
  --header-height: 76px;
  --radius-s: 3px;
  --radius-m: 6px;
  --radius-pill: 999px;

  /* Motion ------------------------------------------------------------- */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 180ms;
  --duration-base: 320ms;
  --duration-slow: 640ms;
  --duration-reveal: 900ms;

  /* Elevation ---------------------------------------------------------- */
  --shadow-soft: 0 1px 2px rgba(19, 17, 16, 0.04),
    0 12px 32px -12px rgba(19, 17, 16, 0.14);
  --shadow-lifted: 0 2px 4px rgba(19, 17, 16, 0.05),
    0 28px 60px -24px rgba(19, 17, 16, 0.24);

  --z-header: 100;
  --z-menu: 200;
}

/* --------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  background-color: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: var(--leading-normal);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.is-locked {
  overflow: hidden;
}

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

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

::selection {
  background: var(--color-ink);
  color: var(--color-paper);
}

.skip-link {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -140%);
  z-index: calc(var(--z-menu) + 1);
  padding: 0.75rem 1.25rem;
  background: var(--color-ink);
  color: var(--color-paper);
  font-size: var(--step--1);
  transition: transform var(--duration-base) var(--ease-out);
}

.skip-link:focus-visible {
  transform: translate(-50%, 0);
}

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

/* --------------------------------------------------------------------------
   3. Typography primitives
   -------------------------------------------------------------------------- */
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}

.display {
  font-size: var(--step-5);
  line-height: var(--leading-tight);
  font-weight: 300;
}

.headline {
  font-size: var(--step-4);
  line-height: var(--leading-tight);
}

.title {
  font-size: var(--step-3);
}

.subtitle {
  font-size: var(--step-2);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  font-family: var(--font-body);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
}

.eyebrow::before {
  content: "";
  width: 2.25rem;
  height: 1px;
  background: currentColor;
  flex: none;
}

.lede {
  font-size: var(--step-1);
  line-height: 1.5;
  color: var(--color-ink-muted);
  text-wrap: pretty;
}

.body-text {
  color: var(--color-ink-muted);
  text-wrap: pretty;
}

.body-text + .body-text {
  margin-top: var(--space-s);
}

em.accent {
  font-style: italic;
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   4. Layout primitives
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.section--tight {
  padding-block: clamp(3rem, 6vw, 6rem);
}

.section-head {
  display: grid;
  gap: var(--space-m);
  max-width: 62ch;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.grid-2 {
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
}

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

/* --------------------------------------------------------------------------
   5. Components
   -------------------------------------------------------------------------- */
.button {
  --button-bg: var(--color-ink);
  --button-fg: var(--color-paper);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.65em;
  padding: 0.85em 1.6em;
  background: var(--button-bg);
  color: var(--button-fg);
  border-radius: var(--radius-pill);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.01em;
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out);
}

.button::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--color-accent);
  transform: translateY(101%);
  transition: transform var(--duration-base) var(--ease-out);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.button:hover::after,
.button:focus-visible::after {
  transform: translateY(0);
}

.button__arrow {
  transition: transform var(--duration-base) var(--ease-out);
}

.button:hover .button__arrow {
  transform: translateX(4px);
}

.button--ghost {
  --button-bg: transparent;
  --button-fg: var(--color-ink);
  box-shadow: inset 0 0 0 1px var(--color-line);
}

.button--ghost:hover,
.button--ghost:focus-visible {
  --button-fg: var(--color-paper);
}

.button--inverse {
  --button-bg: var(--color-inverse-ink);
  --button-fg: var(--color-ink);
}

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

.link-underline {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--color-ink);
  padding-bottom: 2px;
}

.link-underline::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transform-origin: right;
  transform: scaleX(1);
  transition: transform var(--duration-base) var(--ease-out);
}

.link-underline:hover::after,
.link-underline:focus-visible::after {
  transform: scaleX(0);
}

.logo {
  display: inline-flex;
  align-items: center;
  color: var(--color-ink);
  transition: color var(--duration-base) var(--ease-out);
}

/* The wordmark is a single-colour vector, applied as a mask so it can
   inherit the surrounding text colour on both paper and inverse surfaces. */
.logo__mark {
  display: block;
  width: var(--logo-width, clamp(150px, 16vw, 190px));
  aspect-ratio: 4800 / 888;
  background-color: currentColor;
  -webkit-mask: url("../img/logo.svg") no-repeat center / contain;
  mask: url("../img/logo.svg") no-repeat center / contain;
}

.logo--inverse {
  color: var(--color-inverse-ink);
}

.logo--footer {
  --logo-width: clamp(180px, 22vw, 240px);
}

/* Decorative orbit system used behind the hero ------------------------- */
.orbits {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.orbits__svg {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(150vw, 1500px);
  height: auto;
  /* --parallax-y is written by the parallax module; keeping it in a custom
     property means the JS never clobbers the centring transform. */
  transform: translate(-50%, -50%) translate3d(0, var(--parallax-y, 0px), 0);
  color: var(--color-ink);
  opacity: 0.16;
}

.orbits__body {
  fill: var(--color-accent);
  opacity: 0.9;
}

/* Paper grain ---------------------------------------------------------- */
.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* --------------------------------------------------------------------------
   6. Header & navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background-color var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

.header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(246, 243, 238, 0.86); /* fallback */
  background: color-mix(in srgb, var(--color-paper) 82%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--color-line-soft);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.header.is-stuck::before {
  opacity: 1;
}

.header.is-hidden {
  transform: translateY(-100%);
}

.header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-m);
  width: 100%;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.6vw, 2.5rem);
}

.nav__link {
  position: relative;
  font-size: var(--step--1);
  font-weight: 450;
  color: var(--color-ink-muted);
  padding-block: 0.35rem;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out);
}

.nav__link:hover,
.nav__link:focus-visible,
.nav__link.is-active {
  color: var(--color-ink);
}

.nav__link.is-active::after,
.nav__link:hover::after {
  transform: scaleX(1);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-s);
}

.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  align-items: center;
  justify-content: center;
}

.nav-toggle__bar {
  position: absolute;
  left: 12px;
  width: 20px;
  height: 1.5px;
  background: var(--color-ink);
  transition: transform var(--duration-base) var(--ease-out),
    opacity var(--duration-fast) var(--ease-out);
}

.nav-toggle__bar:nth-child(1) {
  transform: translateY(-4px);
}

.nav-toggle__bar:nth-child(2) {
  transform: translateY(4px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  transform: rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
  display: grid;
  align-content: center;
  padding: var(--gutter);
  background: var(--color-paper);
  clip-path: inset(0 0 100% 0);
  visibility: hidden;
  transition: clip-path var(--duration-slow) var(--ease-in-out),
    visibility 0s linear var(--duration-slow);
}

.mobile-menu.is-open {
  clip-path: inset(0 0 0 0);
  visibility: visible;
  transition: clip-path var(--duration-slow) var(--ease-in-out),
    visibility 0s;
}

.mobile-menu__list {
  display: grid;
  gap: var(--space-xs);
  border-top: 1px solid var(--color-line);
}

.mobile-menu__item {
  border-bottom: 1px solid var(--color-line);
}

.mobile-menu__link {
  display: flex;
  align-items: baseline;
  gap: var(--space-s);
  padding-block: var(--space-s);
  font-family: var(--font-display);
  font-size: var(--step-3);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

.mobile-menu.is-open .mobile-menu__link {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 160ms;
}

.mobile-menu.is-open .mobile-menu__item:nth-child(2) .mobile-menu__link {
  transition-delay: 220ms;
}

.mobile-menu.is-open .mobile-menu__item:nth-child(3) .mobile-menu__link {
  transition-delay: 280ms;
}

.mobile-menu.is-open .mobile-menu__item:nth-child(4) .mobile-menu__link {
  transition-delay: 340ms;
}

.mobile-menu__index {
  font-family: var(--font-body);
  font-size: var(--step--2);
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent);
}

.mobile-menu__footer {
  margin-top: var(--space-xl);
  display: grid;
  gap: var(--space-xs);
  font-size: var(--step--1);
  color: var(--color-ink-muted);
}

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: min(100svh, 900px);
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-2xl);
  overflow: hidden;
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--space-xl);
}

.hero__title {
  max-width: 15ch;
}

.hero__title .line {
  display: block;
  overflow: hidden;
}

.js .hero__title .line > span {
  display: block;
  transform: translateY(105%);
  transition: transform var(--duration-reveal) var(--ease-out);
  transition-delay: 120ms;
}

.js .hero__title .line:nth-child(2) > span {
  transition-delay: 210ms;
}

.js .hero__title .line:nth-child(3) > span {
  transition-delay: 300ms;
}

.js .hero__title .line:nth-child(4) > span {
  transition-delay: 390ms;
}

.js.is-ready .hero__title .line > span {
  transform: translateY(0);
}

.hero__meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: var(--space-l);
  padding-top: var(--space-l);
  border-top: 1px solid var(--color-line);
}

.hero__lede {
  max-width: 46ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s);
}

.hero__scroll {
  position: absolute;
  left: var(--gutter);
  bottom: var(--space-m);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--step--2);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ink-faint);
}

.hero__scroll-line {
  display: block;
  width: 52px;
  height: 1px;
  background: var(--color-line);
  overflow: hidden;
  position: relative;
}

.hero__scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-accent);
  transform-origin: left;
  animation: scroll-hint 2.4s var(--ease-in-out) infinite;
}

@keyframes scroll-hint {
  0% {
    transform: scaleX(0);
    transform-origin: left;
  }
  45% {
    transform: scaleX(1);
    transform-origin: left;
  }
  55% {
    transform: scaleX(1);
    transform-origin: right;
  }
  100% {
    transform: scaleX(0);
    transform-origin: right;
  }
}

/* Marquee strip -------------------------------------------------------- */
.strip {
  position: relative;
  z-index: 2;
  padding-block: var(--space-m);
  border-block: 1px solid var(--color-line);
  background: var(--color-paper-raised);
  overflow: hidden;
}

.strip__track {
  display: flex;
  width: max-content;
  gap: var(--space-xl);
  animation: marquee 46s linear infinite;
}

.strip:hover .strip__track {
  animation-play-state: paused;
}

.strip__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xl);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.strip__item::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  flex: none;
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* --------------------------------------------------------------------------
   8. About & metrics
   -------------------------------------------------------------------------- */
.about__layout {
  display: grid;
  gap: clamp(2.5rem, 6vw, 6rem);
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  align-items: start;
}

.about__aside {
  position: sticky;
  top: calc(var(--header-height) + var(--space-l));
  display: grid;
  gap: var(--space-m);
}

.about__statement {
  font-family: var(--font-display);
  font-size: var(--step-2);
  line-height: 1.32;
  letter-spacing: var(--tracking-tight);
  text-wrap: pretty;
}

.about__statement + .body-text {
  margin-top: var(--space-l);
}

.values {
  display: grid;
  gap: 0;
  margin-top: var(--space-xl);
  border-top: 1px solid var(--color-line);
}

.values__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-m);
  padding-block: var(--space-m);
  border-bottom: 1px solid var(--color-line);
}

.values__index {
  font-size: var(--step--2);
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent);
  padding-top: 0.45em;
}

.values__title {
  font-size: var(--step-1);
  margin-bottom: var(--space-3xs);
}

.values__body {
  font-size: var(--step--1);
  color: var(--color-ink-muted);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: var(--space-l);
  margin-top: clamp(3rem, 6vw, 5rem);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-line);
}

.metric__value {
  display: flex;
  align-items: baseline;
  font-family: var(--font-display);
  font-size: var(--step-4);
  line-height: 1;
  letter-spacing: var(--tracking-tight);
  font-variant-numeric: tabular-nums;
}

.metric__suffix {
  color: var(--color-accent);
}

.metric__label {
  margin-top: var(--space-xs);
  font-size: var(--step--1);
  color: var(--color-ink-muted);
  max-width: 24ch;
}

/* --------------------------------------------------------------------------
   9. Services
   -------------------------------------------------------------------------- */
.services {
  background: var(--color-paper-raised);
  border-block: 1px solid var(--color-line-soft);
}

.services__list {
  border-top: 1px solid var(--color-line);
}

.service {
  position: relative;
  display: grid;
  grid-template-columns: 5rem minmax(0, 0.9fr) minmax(0, 1.3fr) 3rem;
  align-items: start;
  gap: var(--space-m);
  padding-block: clamp(1.5rem, 3vw, 2.35rem);
  border-bottom: 1px solid var(--color-line);
  transition: padding-inline var(--duration-base) var(--ease-out);
}

.service::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-paper);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  z-index: 0;
}

.service:hover::before {
  opacity: 1;
}

.service:hover {
  padding-inline: clamp(0.75rem, 2vw, 1.75rem);
}

.service > * {
  position: relative;
  z-index: 1;
}

.service__index {
  font-size: var(--step--2);
  letter-spacing: var(--tracking-wide);
  color: var(--color-ink-faint);
  padding-top: 0.6em;
}

.service__name {
  font-size: var(--step-2);
}

.service__body {
  font-size: var(--step--1);
  color: var(--color-ink-muted);
  max-width: 52ch;
  padding-top: 0.35em;
}

.service__mark {
  justify-self: end;
  align-self: center;
  width: 1.6rem;
  height: 1.6rem;
  color: var(--color-ink-faint);
  transition: transform var(--duration-base) var(--ease-out),
    color var(--duration-base) var(--ease-out);
}

.service:hover .service__mark {
  color: var(--color-accent);
  transform: rotate(45deg);
}

/* --------------------------------------------------------------------------
   10. Products (sticky showcase)
   -------------------------------------------------------------------------- */
.products__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}

.products__stage {
  position: sticky;
  top: calc(var(--header-height) + clamp(1rem, 6vh, 4rem));
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-m);
  background: var(--color-ink);
  box-shadow: var(--shadow-lifted);
  overflow: hidden;
}

.products__frame {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.products__frame.is-active {
  opacity: 1;
  transform: scale(1);
}

.products__frame svg {
  width: 100%;
  height: 100%;
}

.products__progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 100%;
  background: var(--color-inverse-line);
}

.products__progress-bar {
  height: 100%;
  width: 0%;
  background: var(--color-accent);
  transition: width var(--duration-slow) var(--ease-out);
}

.products__track {
  display: grid;
}

.product {
  display: grid;
  gap: var(--space-m);
  align-content: center;
  min-height: 78vh;
  padding-block: var(--space-l);
}

.product:not(:last-child) {
  border-bottom: 1px solid var(--color-line);
}

.product__index {
  font-size: var(--step--2);
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent);
}

.product__name {
  font-size: var(--step-3);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4em;
}

.product__name small {
  font-family: var(--font-body);
  font-size: var(--step--1);
  letter-spacing: 0.02em;
  color: var(--color-ink-faint);
  align-self: center;
}

.product__body {
  color: var(--color-ink-muted);
  max-width: 46ch;
}

.product__features {
  display: grid;
  gap: var(--space-2xs);
  margin-top: var(--space-2xs);
}

.product__feature {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-xs);
  font-size: var(--step--1);
  color: var(--color-ink-muted);
}

.product__feature::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 0.62em;
  border-radius: 50%;
  border: 1px solid var(--color-accent);
}

.product__visual-inline svg {
  width: 100%;
  height: 100%;
}

.product__visual-inline {
  display: none;
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--color-ink);
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-soft);
}

/* --------------------------------------------------------------------------
   11. Contact
   -------------------------------------------------------------------------- */
.contact {
  position: relative;
  background: var(--color-inverse-surface);
  color: var(--color-inverse-ink);
  overflow: hidden;
}

.contact .eyebrow {
  color: var(--color-accent);
}

.contact__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: clamp(2.5rem, 6vw, 4.5rem);
}

.contact__title {
  font-size: var(--step-4);
  max-width: 18ch;
}

.contact__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-inverse-line);
}

.contact__label {
  font-size: var(--step--2);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-inverse-muted);
  margin-bottom: var(--space-xs);
}

.contact__value {
  font-size: var(--step-1);
  font-family: var(--font-display);
  line-height: 1.4;
}

.contact__email {
  position: relative;
  display: inline-block;
  padding-bottom: 4px;
}

.contact__email::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out);
}

.contact__email:hover::after {
  transform: scaleX(0);
}

.contact__orbit {
  position: absolute;
  right: -12vw;
  top: 50%;
  transform: translate(0, -50%) translate3d(0, var(--parallax-y, 0px), 0);
  width: min(70vw, 720px);
  color: var(--color-inverse-ink);
  opacity: 0.1;
  z-index: 1;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--color-inverse-surface);
  color: var(--color-inverse-ink);
  padding-block: var(--space-2xl) var(--space-l);
  border-top: 1px solid var(--color-inverse-line);
}

.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  padding-bottom: var(--space-xl);
}

.footer__brand {
  display: grid;
  gap: var(--space-m);
  align-content: start;
}

.footer__tagline {
  font-size: var(--step--1);
  color: var(--color-inverse-muted);
  max-width: 34ch;
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr));
  gap: var(--space-l);
}

.footer__heading {
  font-family: var(--font-body);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-inverse-muted);
  margin-bottom: var(--space-s);
}

.footer__list {
  display: grid;
  gap: var(--space-2xs);
}

.footer__link {
  font-size: var(--step--1);
  color: var(--color-inverse-ink);
  opacity: 0.82;
  transition: opacity var(--duration-fast) var(--ease-out),
    padding-left var(--duration-base) var(--ease-out);
}

.footer__link:hover,
.footer__link:focus-visible {
  opacity: 1;
  padding-left: 6px;
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-s);
  padding-top: var(--space-m);
  border-top: 1px solid var(--color-inverse-line);
  font-size: var(--step--2);
  color: var(--color-inverse-muted);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-m);
}

.footer__legal a:hover {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   13. Motion & reveal utilities
   -------------------------------------------------------------------------- */
/* The hidden starting state is scoped to `.js`, which is set by a tiny inline
   snippet in the document head. If scripting is unavailable or the script fails
   to load, nothing is ever hidden and the page reads as plain content. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--duration-reveal) var(--ease-out),
    transform var(--duration-reveal) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

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

.js [data-reveal="scale"] {
  transform: scale(0.97);
}

.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* Stagger utility — keeps delays out of the markup so the CSP can forbid
   inline styles entirely. */
[data-delay="1"] {
  --reveal-delay: 80ms;
}
[data-delay="2"] {
  --reveal-delay: 160ms;
}
[data-delay="3"] {
  --reveal-delay: 240ms;
}
[data-delay="4"] {
  --reveal-delay: 320ms;
}
[data-delay="5"] {
  --reveal-delay: 420ms;
}
[data-delay="6"] {
  --reveal-delay: 520ms;
}

[data-parallax] {
  will-change: transform;
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }

  [data-reveal],
  .hero__title .line > span {
    opacity: 1 !important;
    transform: none !important;
  }

  .strip__track {
    animation: none;
  }
}

/* --------------------------------------------------------------------------
   14. Legal / prose pages
   -------------------------------------------------------------------------- */
.page-header {
  padding-top: calc(var(--header-height) + clamp(3rem, 8vw, 6rem));
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--color-line);
}

.prose {
  max-width: var(--container-narrow);
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.prose h2 {
  font-size: var(--step-2);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-s);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  font-size: var(--step-1);
  margin-top: var(--space-l);
  margin-bottom: var(--space-2xs);
}

.prose p,
.prose li {
  color: var(--color-ink-muted);
}

.prose p + p {
  margin-top: var(--space-s);
}

.prose ul {
  display: grid;
  gap: var(--space-2xs);
  margin-top: var(--space-s);
  padding-left: var(--space-m);
}

.prose li {
  list-style: disc;
}

.prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose__meta {
  font-size: var(--step--1);
  color: var(--color-ink-faint);
}

.prose__divider {
  margin-block: var(--space-l);
}

.page-header__meta {
  margin-top: var(--space-s);
  font-size: var(--step--1);
  color: var(--color-ink-faint);
}

.address {
  font-style: normal;
}

.footer--minimal {
  padding-block: var(--space-l);
}

.footer__bottom--bare {
  border-top: 0;
  padding-top: 0;
}

/* Error page ----------------------------------------------------------- */
.error-page {
  min-height: 80svh;
  display: grid;
  align-content: center;
  gap: var(--space-m);
  padding-top: var(--header-height);
}

.error-page__lede {
  max-width: 52ch;
}

.error-page__action {
  margin-top: var(--space-s);
}

/* --------------------------------------------------------------------------
   15. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .service {
    grid-template-columns: 3.5rem minmax(0, 1fr);
    grid-template-areas:
      "index name"
      ". body";
  }

  .service__index {
    grid-area: index;
  }

  .service__name {
    grid-area: name;
  }

  .service__body {
    grid-area: body;
  }

  .service__mark {
    display: none;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 66px;
  }

  .nav,
  .header__actions .button {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .about__layout,
  .footer__top {
    grid-template-columns: minmax(0, 1fr);
  }

  .about__aside {
    position: static;
  }

  .hero__meta {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }

  .hero__scroll {
    display: none;
  }

  .products__layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .products__stage {
    display: none;
  }

  .product {
    min-height: 0;
    padding-block: var(--space-xl);
  }

  .product__visual-inline {
    display: block;
  }
}

@media (max-width: 560px) {
  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-m);
  }

  .values__item {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-2xs);
  }

  .hero__actions .button {
    flex: 1 1 auto;
    justify-content: center;
  }
}

@media print {
  .header,
  .grain,
  .orbits,
  .hero__scroll,
  .strip {
    display: none !important;
  }

  body {
    background: #fff;
  }
}