/* ==========================================================================
   Tokens
   ========================================================================== */

:root {
  --font-sans: "Barlow", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 2.5rem;
  --space-6: 3rem;
  --space-8: 4rem;
  --space-10: 5rem;
  --space-12: 6rem;
  --space-16: 8rem;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: clamp(1.125rem, 1.05rem + 0.35vw, 1.3125rem);
  --fs-xl: clamp(1.375rem, 1.2rem + 0.8vw, 1.75rem);
  --fs-2xl: clamp(2rem, 1.45rem + 2.4vw, 3.25rem);
  --fs-hero: clamp(2.5rem, 1.55rem + 4.3vw, 5rem);

  --tracking-caps: 0.12em;
  --container: 80rem;
  --gutter: clamp(1rem, 4vw, 3rem);
  --header-h: 4.5rem;
  --tap-target: 2.75rem;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur-fast: 150ms;
  --dur: 300ms;
  --dur-slow: 700ms;
}

:root {
  --color-bg: #000;
  --color-text: #f2f2f2;
  --color-muted: #a3a3a3;
  --color-line: rgb(255 255 255 / 0.16);
  --color-line-strong: rgb(255 255 255 / 0.42);
  --color-accent: #fff;
  --color-on-accent: #000;
  --color-focus: #7cb6ff;
  --color-error: #ff8f85;
  --color-success: #7ee2a8;
  color-scheme: dark;
}

/* ==========================================================================
   Base
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

html.has-open-menu {
  overflow: hidden;
}

body {
  margin: 0;
  min-width: 20rem;
  overflow-x: hidden;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

ul[role="list"],
ol[role="list"] {
  list-style: none;
  padding: 0;
}

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

a {
  color: inherit;
}

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

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  top: var(--space-1);
  left: var(--space-1);
  z-index: 100;
  padding: var(--space-1) var(--space-2);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: 600;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: none;
}

/* ==========================================================================
   Primitives
   ========================================================================== */

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

.icon {
  width: 1.25rem;
  height: 1.25rem;
  flex: none;
  fill: currentColor;
}

.eyebrow {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-muted);
}

.lead {
  font-size: var(--fs-lg);
  line-height: 1.5;
}

.section {
  padding-block: clamp(var(--space-10), 12vw, var(--space-16));
}

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

.section-header {
  display: grid;
  gap: var(--space-2);
  margin-bottom: clamp(var(--space-6), 6vw, var(--space-10));
}

.section-title {
  max-width: 22ch;
  font-size: var(--fs-2xl);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.button {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  min-height: 3rem;
  padding: var(--space-1) var(--space-5);
  overflow: hidden;
  border: 2px solid currentColor;
  background: transparent;
  color: var(--color-text);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

.button::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--color-accent);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--dur) var(--ease);
}

@media (hover: hover) {
  .button:hover {
    color: var(--color-on-accent);
  }

  .button:hover::before {
    transform: scaleY(1);
  }
}

.button[aria-busy="true"] {
  cursor: progress;
}

.button__spinner {
  display: none;
  width: 1rem;
  height: 1rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.button[aria-busy="true"] .button__spinner {
  display: block;
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: var(--tap-target);
  height: var(--tap-target);
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.meta-list {
  display: flex;
  flex-wrap: wrap;
  font-size: var(--fs-sm);
}

.meta-list li + li::before {
  content: "/";
  margin-inline: var(--space-1);
  color: var(--color-muted);
}

/* ==========================================================================
   Header & navigation
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  border-bottom: 1px solid transparent;
  color: var(--color-text);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.site-header.is-scrolled,
.site-header.is-menu-open {
  background-color: var(--color-bg);
  border-bottom-color: var(--color-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  min-height: var(--tap-target);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  text-decoration: none;
}

.brand__mark {
  width: 1.75rem;
  height: 1.75rem;
  object-fit: contain;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.menu-toggle {
  position: relative;
  z-index: 2;
}

.menu-toggle__bars {
  position: relative;
  width: 1.5rem;
  height: 0.875rem;
}

.menu-toggle__bars::before,
.menu-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), top var(--dur) var(--ease);
}

.menu-toggle__bars::before {
  top: 0;
}

.menu-toggle__bars::after {
  top: calc(100% - 2px);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bars::before {
  top: calc(50% - 1px);
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bars::after {
  top: calc(50% - 1px);
  transform: rotate(-45deg);
}

.site-nav__list {
  display: flex;
  flex-direction: column;
}

.site-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  min-height: var(--tap-target);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  text-decoration: none;
}

@media (max-width: 63.99rem) {
  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    width: min(100%, 24rem);
    padding: calc(var(--header-h) + var(--space-4)) var(--gutter) var(--space-6);
    overflow-y: auto;
    overscroll-behavior: contain;
    background-color: var(--color-bg);
    border-left: 1px solid var(--color-line);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--dur) var(--ease), visibility 0s linear var(--dur);
  }

  .site-header.is-menu-open .site-nav {
    transform: none;
    visibility: visible;
    transition: transform var(--dur) var(--ease);
  }

  .site-header.is-menu-open::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgb(0 0 0 / 0.6);
  }

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

  .site-nav__link {
    min-height: 3.5rem;
    border-bottom: 1px solid var(--color-line);
    font-size: var(--fs-base);
  }
}

@media (min-width: 64rem) {
  .menu-toggle {
    display: none;
  }

  .site-header__inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
  }

  .site-header__actions {
    justify-self: end;
  }

  .site-nav__list {
    flex-direction: row;
    gap: var(--space-4);
  }

  .site-nav__link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0.625rem;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--dur) var(--ease);
  }

  .site-nav__link:hover::after,
  .site-nav__link:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  background: radial-gradient(ellipse 70% 55% at 70% 65%, #08111f 0%, #000 70%);
  color: var(--color-text);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.2s var(--ease);
}

.hero__canvas.is-ready {
  opacity: 1;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 60%;
  background: linear-gradient(to top, rgb(0 0 0 / 0.88), rgb(0 0 0 / 0));
  pointer-events: none;
}

.hero__content {
  padding-block: calc(var(--header-h) + var(--space-8)) clamp(var(--space-10), 14vh, var(--space-16));
}

.hero__title {
  max-width: 16ch;
  margin-block: var(--space-2) var(--space-3);
  font-size: var(--fs-hero);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.005em;
  text-transform: uppercase;
  text-wrap: balance;
}

.hero__lead {
  max-width: 44ch;
  margin-bottom: var(--space-5);
  font-size: var(--fs-lg);
  line-height: 1.5;
  color: var(--color-muted);
}

.hero__scroll {
  display: none;
}

@media (min-width: 64rem) {
  .hero__scroll {
    position: absolute;
    left: 50%;
    bottom: var(--space-3);
    display: inline-grid;
    place-items: center;
    width: var(--tap-target);
    height: var(--tap-target);
    color: var(--color-muted);
    transform: translateX(-50%);
    transition: color var(--dur-fast) var(--ease);
  }

  .hero__scroll:hover {
    color: var(--color-text);
  }
}

@media (min-width: 64rem) and (prefers-reduced-motion: no-preference) {
  .hero__scroll .icon {
    animation: nudge 2.4s var(--ease) infinite;
  }
}

/* ==========================================================================
   Split layout
   ========================================================================== */

.split {
  display: grid;
  gap: var(--space-6);
}

.split__header {
  margin-bottom: 0;
}

@media (min-width: 64rem) {
  .split {
    grid-template-columns: 5fr 7fr;
    gap: var(--space-12);
  }

  .split__header {
    position: sticky;
    top: calc(var(--header-h) + var(--space-4));
    align-self: start;
  }
}

/* ==========================================================================
   About
   ========================================================================== */

.about__body {
  display: grid;
  gap: var(--space-3);
  color: var(--color-muted);
}

.about__body .lead {
  color: var(--color-text);
}

.principles {
  margin-top: var(--space-3);
  border-top: 1px solid var(--color-line);
}

.principle {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--color-line);
}

.principle dt {
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-text);
}

@media (min-width: 48rem) {
  .principle {
    grid-template-columns: 13rem 1fr;
    gap: var(--space-4);
  }
}

/* ==========================================================================
   Services
   ========================================================================== */

.service-list {
  display: grid;
  grid-template-columns: 1fr;
  column-gap: var(--space-5);
}

.service {
  position: relative;
  display: grid;
  align-content: start;
  gap: var(--space-2);
  padding-block: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-line);
}

.service::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-text);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-slow) var(--ease);
}

@media (hover: hover) {
  .service:hover::before {
    transform: scaleX(1);
  }
}

.service__index {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-caps);
  font-variant-numeric: tabular-nums;
  color: var(--color-muted);
}

.service__title {
  font-size: var(--fs-xl);
  font-weight: 600;
  line-height: 1.2;
}

.service__summary {
  max-width: 42ch;
  color: var(--color-muted);
}

.service .meta-list {
  margin-top: var(--space-1);
  font-weight: 500;
}

@media (min-width: 48rem) {
  .service-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 80rem) {
  .service-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact__grid {
  display: grid;
  gap: var(--space-6);
}

.contact__intro {
  display: grid;
  align-content: start;
  gap: var(--space-3);
  color: var(--color-muted);
}

.contact__header {
  margin-bottom: 0;
}

.contact__email {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  min-height: var(--tap-target);
  font-size: var(--fs-lg);
  color: var(--color-text);
  text-underline-offset: 0.3em;
  text-decoration-thickness: 1px;
}

.contact-form {
  display: grid;
  gap: var(--space-2) var(--space-3);
}

.field {
  display: grid;
  gap: var(--space-1);
}

.field__label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
}

.field__control {
  width: 100%;
  min-height: 3rem;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--color-line-strong);
  border-radius: 0;
  background: transparent;
  font-size: 1rem;
  appearance: none;
  transition: border-color var(--dur-fast) var(--ease);
}

.field__control:hover {
  border-color: var(--color-text);
}

.field__control:focus-visible {
  border-color: var(--color-text);
  outline-offset: 0;
}

.field__control[aria-invalid="true"] {
  border-color: var(--color-error);
}

textarea.field__control {
  min-height: 10rem;
  padding-block: var(--space-2);
  resize: vertical;
}

.field__select {
  position: relative;
}

.field__select .field__control {
  padding-right: var(--space-6);
  cursor: pointer;
}

.field__select::after {
  content: "";
  position: absolute;
  top: 50%;
  right: var(--space-2);
  width: 0.5rem;
  height: 0.5rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}

.field__error {
  min-height: 1.25rem;
  font-size: var(--fs-sm);
  line-height: 1.25rem;
  color: var(--color-error);
}

.contact-form__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
}

.form-status {
  font-size: var(--fs-sm);
}

.form-status[data-state="success"] {
  color: var(--color-success);
}

.form-status[data-state="error"] {
  color: var(--color-error);
}

@media (min-width: 48rem) {
  .contact-form {
    grid-template-columns: 1fr 1fr;
  }

  .field--full,
  .contact-form__footer {
    grid-column: 1 / -1;
  }
}

@media (min-width: 64rem) {
  .contact__grid {
    grid-template-columns: 5fr 7fr;
    gap: var(--space-12);
  }
}

/* ==========================================================================
   Inner pages
   ========================================================================== */

.page-header {
  padding-block: calc(var(--header-h) + clamp(var(--space-8), 10vw, var(--space-12))) clamp(var(--space-6), 6vw, var(--space-10));
  border-bottom: 1px solid var(--color-line);
}

.page-title {
  max-width: 16ch;
  margin-top: var(--space-2);
  font-size: var(--fs-hero);
  font-weight: 600;
  line-height: 1.02;
  text-transform: uppercase;
  text-wrap: balance;
}

.page-header__lead {
  max-width: 48ch;
  margin-top: var(--space-3);
  font-size: var(--fs-lg);
  line-height: 1.5;
  color: var(--color-muted);
}

.page-header__meta {
  margin-top: var(--space-3);
  font-size: var(--fs-sm);
  color: var(--color-muted);
}

/* ==========================================================================
   Legal pages
   ========================================================================== */

.legal {
  display: grid;
  gap: var(--space-6);
}

.toc {
  display: none;
}

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

.toc__link {
  display: flex;
  align-items: center;
  min-height: var(--tap-target);
  border-bottom: 1px solid var(--color-line);
  font-size: var(--fs-sm);
  color: var(--color-muted);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}

.toc__link:hover {
  color: var(--color-text);
}

.prose {
  max-width: 68ch;
  color: var(--color-muted);
}

.prose h2 {
  margin-block: var(--space-8) var(--space-2);
  font-size: var(--fs-xl);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
  scroll-margin-top: calc(var(--header-h) + var(--space-2));
}

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

.prose p + p,
.prose p + ul,
.prose ul + p {
  margin-top: var(--space-2);
}

.prose ul {
  display: grid;
  gap: var(--space-1);
  padding-left: var(--space-3);
}

.prose strong,
.prose a {
  color: var(--color-text);
}

.prose strong {
  font-weight: 600;
}

.prose a {
  text-underline-offset: 0.2em;
}

@media (min-width: 64rem) {
  .legal {
    grid-template-columns: 16rem minmax(0, 1fr);
    gap: var(--space-12);
  }

  .toc {
    position: sticky;
    top: calc(var(--header-h) + var(--space-4));
    display: grid;
    gap: var(--space-2);
    align-self: start;
  }
}

/* ==========================================================================
   Careers
   ========================================================================== */

html:not(.js) .job-list,
.job-list:empty {
  display: none;
}

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

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

.job__link {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-1) var(--space-3);
  padding-block: var(--space-3);
  text-decoration: none;
}

.job__title {
  font-size: var(--fs-xl);
  font-weight: 600;
  line-height: 1.2;
}

.job__link .meta-list {
  grid-column: 1;
  color: var(--color-muted);
}

.job__arrow {
  grid-column: 2;
  grid-row: 1 / span 2;
  transition: transform var(--dur) var(--ease);
}

@media (hover: hover) {
  .job__link:hover .job__arrow {
    transform: translateX(var(--space-1));
  }
}

.job--skeleton {
  height: 6.5rem;
  background: linear-gradient(90deg, transparent 0%, rgb(255 255 255 / 0.05) 50%, transparent 100%) 0 0 / 200% 100%;
  animation: shimmer 1.6s linear infinite;
}

.job-board__status {
  padding-block: var(--space-4);
  border-block: 1px solid var(--color-line);
  font-size: var(--fs-lg);
  color: var(--color-muted);
}

.job-board[data-state="error"] .job-board__status {
  color: var(--color-error);
}

.cta {
  display: grid;
  gap: var(--space-4);
  justify-items: start;
}

.cta .section-header {
  margin-bottom: 0;
}

.cta__text {
  max-width: 52ch;
  color: var(--color-muted);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  padding-block: var(--space-4);
  border-top: 1px solid var(--color-line);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  text-align: center;
}

.site-footer__copyright,
.footer-links a {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  column-gap: var(--space-3);
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap-target);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}

.social-link {
  color: var(--color-muted);
  transition: color var(--dur-fast) var(--ease);
}

.footer-links a:hover,
.footer-links a[aria-current="page"],
.social-link:hover {
  color: var(--color-text);
}

@media (min-width: 64rem) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: center;
    gap: var(--space-4);
  }
}

/* ==========================================================================
   Motion
   ========================================================================== */

@media (prefers-reduced-motion: no-preference) {
  .js [data-reveal] {
    transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
  }

  .js [data-reveal]:not(.is-visible) {
    opacity: 0;
    transform: translateY(var(--space-3));
  }

  .service:nth-child(3n + 2) {
    transition-delay: 80ms;
  }

  .service:nth-child(3n + 3) {
    transition-delay: 160ms;
  }
}

@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;
  }
}

@keyframes shimmer {
  to {
    background-position: -200% 0;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes nudge {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(0.375rem);
  }
}