/* ==========================================================================
   Satoshi — self-hosted (assets/fonts)
   ========================================================================== */
@font-face {
  font-family: "Satoshi";
  src: url("assets/fonts/Satoshi-Light.otf") format("opentype");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Satoshi";
  src: url("assets/fonts/Satoshi-Regular.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Satoshi";
  src: url("assets/fonts/Satoshi-Medium.otf") format("opentype");
  font-weight: 500 650;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Satoshi";
  src: url("assets/fonts/Satoshi-Bold.otf") format("opentype");
  font-weight: 651 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Satoshi";
  src: url("assets/fonts/Satoshi-Black.otf") format("opentype");
  font-weight: 801 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --color-ink: #1d1d1f;
  --color-page: #fbfbfd;
  --color-muted: #6e6e73;
  --color-accent: #007AFF;
  --color-accent-hover: #0066d6;
  --color-button: #2a2a2c;
  --color-button-hover: #1a1a1a;
  --color-line: rgba(29, 29, 31, 0.12);
  --color-panel: #f5f5f7;
  --color-panel-soft: #ffffff;
  --color-focus: #0055c8;
  --font-satoshi: "Satoshi", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --container: min(100% - 2rem, 1120px);
  --container-narrow: min(100% - 2rem, 980px);
  --container-reading: min(100% - 2rem, 860px);
  --apple-green: #34c759;
  --apple-green-soft: #e8f8ec;
  --section-space: clamp(5rem, 12vh, 9rem);
  --section-space-compact: clamp(4rem, 9vh, 7rem);
  --space-2xs: clamp(0.375rem, 0.34rem + 0.18vw, 0.5rem);
  --space-xs: clamp(0.625rem, 0.55rem + 0.38vw, 0.875rem);
  --space-sm: clamp(0.875rem, 0.78rem + 0.48vw, 1.25rem);
  --space-md: clamp(1.25rem, 1.06rem + 0.96vw, 2rem);
  --space-lg: clamp(2rem, 1.62rem + 1.92vw, 3.5rem);
  --space-xl: clamp(3rem, 2.24rem + 3.84vw, 6rem);
  --text-xs: clamp(0.78rem, 0.76rem + 0.1vw, 0.84rem);
  --text-sm: clamp(0.9rem, 0.86rem + 0.2vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.24vw, 1.125rem);
  --text-md: clamp(1.2rem, 1.1rem + 0.5vw, 1.5rem);
  --text-lg: clamp(1.65rem, 1.32rem + 1.65vw, 2.75rem);
  --text-xl: clamp(2.15rem, 1.55rem + 3vw, 4rem);
  --text-hero: clamp(2.5rem, 6vw, 5rem);
  --tracking-tight: -0.045em;
  --radius-lg: 2rem;
  --radius-md: 1.25rem;
  --header-height: 2.75rem;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  background: var(--color-page);
  color: var(--color-ink);
  font-family: var(--font-satoshi);
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.92) 0%, rgba(251, 251, 253, 0) 36rem),
    var(--color-page);
  color: var(--color-ink);
  font-size: var(--text-base);
  line-height: 1.55;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

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

a:not(.button):hover {
  color: var(--color-accent);
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 4px;
}

::selection {
  background: rgba(0, 122, 255, 0.18);
}

p,
h1,
h2,
h3,
blockquote {
  margin: 0;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  transform: translateY(-150%);
  border-radius: 999px;
  background: var(--color-ink);
  color: var(--color-page);
  padding: 0.7rem 1rem;
  font-size: var(--text-sm);
  font-weight: 700;
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.container--narrow {
  width: var(--container-narrow);
}

.container--reading {
  width: var(--container-reading);
}

.section {
  padding-block: var(--section-space);
  scroll-margin-top: calc(var(--header-height) + 1.5rem);
}

.section--compact {
  padding-block: var(--section-space-compact);
}

.section--tint {
  background: var(--color-panel);
}

.section--closing {
  background: linear-gradient(180deg, var(--color-page) 0%, #f3f3f5 100%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(29, 29, 31, 0.08);
  background: rgba(251, 251, 253, 0.92);
  isolation: isolate;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(251, 251, 253, 0.78);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}

.nav-shell {
  display: flex;
  min-height: var(--header-height);
  width: var(--container);
  margin-inline: auto;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

/* ==========================================================================
   Gradient text — matte-black → satin-black → deep-grey (display use only)
   ========================================================================== */
.gradient-text {
  background: linear-gradient(
    155deg,
    #1a1a1a  0%,
    #3c3c3e 35%,
    #2a2a2c 60%,
    #4e4e52 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  /* Solid fallback for browsers / print that don't support background-clip: text */
  color: #1a1a1a;
  /*
   * Essential: with background-clip:text the gradient can only paint inside
   * the element's own box. Tight line-height values (< 1.2) push glyph ink
   * outside that box, turning the clipped area transparent. Extra padding
   * extends the box so the gradient covers every pixel of every glyph —
   * including deep descenders and the tops of tall caps.
   */
  padding-block: 0.08em 0.2em;
}

/* Keep text visible when selected */
.gradient-text::selection,
.gradient-text *::selection {
  -webkit-text-fill-color: var(--color-page);
}




.nav-shell .wordmark {
  position: relative;
  z-index: 22;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

/* Thin separator between VK logo and name — mirrors Apple's logo | product pattern */
.wordmark__sep {
  display: block;
  width: 1px;
  height: 1rem;
  background: rgba(29, 29, 31, 0.22);
  flex-shrink: 0;
}

@media (prefers-color-scheme: dark) {
  .wordmark__sep { background: rgba(255, 255, 255, 0.22); }
}

/* Official V lettermark (inline SVG) */
.wordmark__logo {
  display: block;
  flex-shrink: 0;
  width: auto;
  height: 14px;
  aspect-ratio: 605 / 245;
  object-fit: contain;
  object-position: left center;
}

@media (min-width: 768px) {
  .wordmark__logo {
    height: 16px;
  }
}

/* X / Twitter nav icon */
.nav__x-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-muted);
  transition: color 180ms ease;
}

.nav__x-link svg {
  width: 14px;
  height: 14px;
}

.nav__x-link:hover {
  color: var(--color-ink);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 1.5vw, 1.25rem);
  color: var(--color-muted);
  font-size: 0.8125rem;
  font-weight: 500;
}

.site-nav a:not(.button) {
  transition: color 180ms ease;
}

.nav-toggle {
  display: none;
}

.button {
  display: inline-flex;
  min-height: 2.85rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-button);
  border-radius: 999px;
  background: var(--color-button);
  color: #ffffff;
  cursor: pointer;
  font: inherit;
  font-size: var(--text-base);
  font-weight: 700;
  line-height: 1;
  padding: 0.9rem 1.35rem;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.button:hover {
  border-color: var(--color-button-hover);
  background: var(--color-button-hover);
  color: #ffffff;
  transform: translateY(-1px);
}

.button--small {
  gap: 0.35rem;
  min-height: 1.875rem;
  padding: 0.35rem 0.9rem;
  font-size: 0.8125rem;
  font-weight: 600;
}

.button__external-icon {
  width: 0.75rem;
  height: 0.75rem;
  flex-shrink: 0;
}

/* ==========================================================================
   Hero — neutral grayscale gradient, name lockup
   ========================================================================== */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100svh - var(--header-height));
  padding-block: clamp(4rem, 12vh, 9rem);
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
  text-align: center;
  background: linear-gradient(
    180deg,
    #fbfbfd 0%,
    #f4f4f5 38%,
    #e8e8ea 72%,
    #dcdcdf 100%
  );
}

.hero .button {
  background: var(--color-ink);
  border-color: var(--color-ink);
}

.hero .button:hover {
  background: #3a3a3c;
  border-color: #3a3a3c;
}

.hero__content {
  width: min(100%, 980px);
  margin-inline: auto;
}

.hero__roles {
  margin: 0;
  color: var(--color-muted);
  font-size: clamp(0.72rem, 1.1vw, 0.875rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.5;
  text-transform: uppercase;
}

.hero__lockup {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(0.65rem, 2vw, 1.35rem);
  margin-top: clamp(1.25rem, 3vh, 2rem);
}

.hero__logo {
  width: clamp(2.75rem, 7.5vw, 5.25rem);
  height: auto;
  flex-shrink: 0;
}

.hero__logo-mark {
  fill: var(--color-ink);
}

.hero__logo-accent {
  fill: var(--apple-green);
}

.hero__title {
  margin: 0;
  color: var(--color-ink);
  font-size: clamp(2.75rem, 9vw, 6.25rem);
  font-weight: 760;
  letter-spacing: -0.048em;
  line-height: 0.95;
  padding-block: 0.04em 0.12em;
}

.hero__statement {
  max-width: 22ch;
  margin: clamp(1.35rem, 3.5vh, 2.25rem) auto 0;
  color: var(--color-ink);
  font-size: clamp(1.35rem, 2.9vw, 2.35rem);
  font-weight: 720;
  letter-spacing: -0.038em;
  line-height: 1.18;
  padding-block: 0.04em 0.1em;
}

.hero__actions,
.contact__actions {
  margin-top: var(--space-lg);
}

.eyebrow {
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-transform: uppercase;
}

.intro {
  background: #1d1d1f;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.intro__copy {
  color: #ffffff;
  font-size: clamp(1.35rem, 2.7vw, 2.35rem);
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.45;
  text-align: center;
}

.intro__copy.gradient-text {
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  -webkit-text-fill-color: unset;
  color: #ffffff;
}

.section-heading {
  max-width: 760px;
  margin-bottom: var(--space-xl);
}

.section-heading--center {
  margin-inline: auto;
  text-align: center;
}

.section-heading h2 {
  margin-top: var(--space-xs);
  font-size: var(--text-xl);
  font-weight: 750;
  letter-spacing: var(--tracking-tight);
  line-height: 1.2;
}

/* ==========================================================================
   Mission cards — full-width stacked, Apple AirPods product-card style
   ========================================================================== */
.mission-stack {
  display: grid;
  gap: 0.75rem;
}

.mission {
  display: flex;
  flex-direction: column;
  border-radius: 1.375rem;
  overflow: hidden;
  position: relative;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.06), 0 4px 24px rgba(0,0,0,0.05);
}

/* Card backgrounds — neutral grayscale */
.mission--ucdops      { background: #ffffff; }
.mission--sprintpilot { background: #f6f6f7; }
.mission--ucdagent    { background: #efeff1; }

/* ── Stage (upper zone) ────────────────────────────────────────────
   Houses the enormous brand name + abstract art (the "product photo").  */
.mission__stage {
  flex: 0 0 auto;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: clamp(0.875rem, 2vw, 1.5rem) clamp(1.5rem, 3vw, 2.5rem) 0.375rem;
}

/* Brand name */
.mission h3 {
  position: relative;
  z-index: 1;
  font-size: clamp(1.125rem, 2.2vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
  padding-block: 0;
}

.mission h3.gradient-text {
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  -webkit-text-fill-color: unset;
  color: var(--color-ink);
}

/* ── Bottom strip ────────────────────────────────────────────────── */
.mission__bottom {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-sm);
  flex: 0 0 auto;
  padding: clamp(0.75rem, 1.5vw, 1.125rem) clamp(1.5rem, 3vw, 2.5rem) calc(clamp(0.75rem, 1.5vw, 1.125rem) + 10px);
  border-top: 1px solid rgba(0, 0, 0, 0.07);
}

.mission__meta {
  flex: 1;
  min-width: 0;
}

.mission__tagline {
  color: var(--color-ink);
  font-size: clamp(0.85rem, 1.3vw, 1rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.35;
}

@media (min-width: 768px) {
  .mission__tagline {
    font-size: 21px;
  }
}

.mission p:last-child {
  margin-top: 0.2rem;
  color: var(--color-muted);
  font-size: clamp(0.78rem, 1vw, 0.875rem);
  line-height: 1.5;
}

@media (min-width: 768px) {
  .mission p:last-child {
    font-size: 19px;
  }
}

.mission__actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
  align-items: center;
}

.capability-grid {
  display: grid;
  gap: var(--space-sm);
}

.capability {
  min-height: 14rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.78);
  padding: clamp(1.25rem, 3vw, 2rem);
  transition:
    border-color 200ms ease,
    transform 200ms ease;
}

.capability:hover {
  border-color: rgba(0, 122, 255, 0.34);
  transform: translateY(-3px);
}

.capability h3 {
  font-size: var(--text-md);
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.capability p {
  margin-top: var(--space-sm);
  color: var(--color-muted);
}

/* ==========================================================================
   Work — dark contrast band (matches intro / philosophy)
   ========================================================================== */
.work {
  background: #1d1d1f;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.work .section-heading h2 {
  color: #ffffff;
  margin-top: 0;
}

.work .section-heading h2.gradient-text {
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  -webkit-text-fill-color: unset;
  color: #ffffff;
}

.work .capability {
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
}

.work .capability:hover {
  border-color: rgba(0, 122, 255, 0.45);
}

.work .capability h3 {
  color: #ffffff;
}

.work .capability p {
  color: #a1a1a6;
}

.wordmark-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.wordmark-grid span {
  display: grid;
  min-height: 6.5rem;
  place-items: center;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 750;
  letter-spacing: -0.01em;
  padding: 1rem;
  text-align: center;
}

.programmes {
  max-width: 920px;
  margin: var(--space-lg) auto 0;
  color: var(--color-muted);
  font-size: var(--text-md);
  line-height: 1.45;
  text-align: center;
}

/* ==========================================================================
   Philosophy — dark contrast band
   ========================================================================== */
.philosophy {
  background: #1d1d1f;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.philosophy .section-heading h2 {
  color: #ffffff;
  margin-top: 0;
}

.philosophy__body {
  display: grid;
  gap: var(--space-md);
}

.philosophy__body > p {
  margin: 0;
  color: #a1a1a6;
  font-size: var(--text-md);
  line-height: 1.55;
}

.philosophy__body > p:first-child {
  color: #ffffff;
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 650;
  line-height: 1.4;
}

.philosophy__body > p:last-child {
  color: #d2d2d7;
  font-weight: 600;
}

@media (min-width: 768px) {
  .philosophy__body > p:last-child {
    font-size: 21px;
  }
}

.philosophy__quote {
  margin: 0;
  padding: 0 0 0 var(--space-sm);
  border: none;
  border-left: 2px solid rgba(255, 255, 255, 0.22);
}

.philosophy__quote p {
  margin: 0;
  color: #ffffff;
  font-size: var(--text-md);
  line-height: 1.55;
}

.contact {
  text-align: center;
}

.contact .section-heading h2 {
  margin-top: 0;
}

.contact__copy {
  max-width: 780px;
  margin-inline: auto;
  color: var(--color-muted);
  font-size: var(--text-md);
  line-height: 1.45;
}

.strapline {
  max-width: 760px;
  margin: var(--space-lg) auto 0;
  color: var(--color-ink);
  font-size: var(--text-lg);
  font-weight: 760;
  letter-spacing: -0.045em;
  line-height: 1.3;
}

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

.footer__inner {
  display: grid;
  gap: var(--space-md);
}

.footer__name {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--color-ink);
  font-weight: 750;
}

.footer__logo {
  display: block;
  flex-shrink: 0;
  width: auto;
  height: 16px;
  aspect-ratio: 605 / 245;
  object-fit: contain;
}

.footer__brands,
.footer__links {
  margin-top: var(--space-2xs);
  font-size: var(--text-sm);
}

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

.footer__links a {
  color: var(--color-accent);
  font-weight: 700;
}

.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 700ms var(--ease-out),
    transform 700ms var(--ease-out);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 768px) {
  :root {
    --container: min(100% - 4rem, 1120px);
    --container-narrow: min(100% - 4rem, 980px);
    --container-reading: min(100% - 4rem, 860px);
  }

  /* Mission cards are already full-width stacked; no column override needed */

  .capability-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .capability--wide {
    grid-column: span 2;
  }

  .wordmark-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .footer__inner {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .footer__links {
    justify-items: end;
    text-align: right;
  }
}

@media (max-width: 767px) {
  .nav-toggle {
    position: relative;
    z-index: 22;
    display: inline-grid;
    width: 2.5rem;
    height: 2.5rem;
    place-items: center;
    border: 1px solid rgba(29, 29, 31, 0.16);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    color: var(--color-ink);
    cursor: pointer;
  }

  .nav-toggle__line,
  .nav-toggle__line::before,
  .nav-toggle__line::after {
    display: block;
    width: 1rem;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition:
      transform 180ms ease,
      opacity 180ms ease;
  }

  .nav-toggle__line {
    position: relative;
  }

  .nav-toggle__line::before,
  .nav-toggle__line::after {
    position: absolute;
    left: 0;
    content: "";
  }

  .nav-toggle__line::before {
    transform: translateY(-0.35rem);
  }

  .nav-toggle__line::after {
    transform: translateY(0.35rem);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line {
    background: transparent;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line::before {
    background: var(--color-ink);
    transform: rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line::after {
    background: var(--color-ink);
    transform: rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 21;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    background: rgba(251, 251, 253, 0.96);
    color: var(--color-ink);
    font-size: var(--text-lg);
    opacity: 1;
    padding:
      calc(var(--header-height) + 2rem)
      2rem
      3rem;
  }

  .js .site-nav {
    pointer-events: none;
    visibility: hidden;
    opacity: 0;
    transition:
      opacity 200ms ease,
      visibility 200ms ease;
  }

  .js .site-nav.is-open {
    pointer-events: auto;
    visibility: visible;
    opacity: 1;
  }

  .site-nav .button {
    margin-top: var(--space-xs);
  }

  .hero {
    min-height: calc(92svh - var(--header-height));
  }

  .wordmark-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}