@import "./tokens.css";
@import "./reset.css";

/* --- Base ---------------------------------------------------------- */
body {
  background-color: var(--color-bg);
  background-image:
    radial-gradient(
      ellipse 90% 55% at 50% -5%,
      color-mix(in srgb, var(--color-accent) 22%, transparent),
      transparent 60%
    ),
    radial-gradient(
      ellipse 55% 45% at 95% 95%,
      color-mix(in srgb, var(--color-primary) 10%, transparent),
      transparent 55%
    );
  background-attachment: fixed;
  background-repeat: no-repeat;
  min-height: 100dvh;
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  font-weight: var(--weight-regular);
  letter-spacing: var(--tracking-snug);
  overflow-x: hidden;
}

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

* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-line-strong) transparent;
}

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

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

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

.stack > * + * {
  margin-top: var(--flow, var(--space-s));
}

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

/* --- Typography helpers ------------------------------------------- */
.eyebrow {
  font-size: var(--step--1);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ink-dim);
  font-weight: var(--weight-medium);
}

.display {
  font-size: var(--step-5);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: var(--weight-regular);
}

.lead {
  font-size: var(--step-2);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
}

.prose {
  max-width: var(--measure);
  color: var(--color-ink-dim);
}

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

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

.dim {
  color: var(--color-ink-dim);
}

.serif {
  font-family: var(--font-serif);
  font-style: italic;
}

/* --- Links --------------------------------------------------------- */
.link {
  position: relative;
  display: inline-block;
  color: var(--color-ink);
  transition: color var(--dur-fast) var(--ease-out);
}

.link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.1em;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-mid) var(--ease-out);
}

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

/* --- Buttons ------------------------------------------------------- */
.button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.9em 1.6em;
  border: 1px solid var(--color-line-strong);
  border-radius: 100px;
  font-size: var(--step-0);
  letter-spacing: var(--tracking-snug);
  color: var(--color-ink);
  transition: background-color var(--dur-mid) var(--ease-out),
    color var(--dur-mid) var(--ease-out),
    border-color var(--dur-mid) var(--ease-out);
}

.button:hover,
.button:focus-visible {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.button .arrow {
  transition: transform var(--dur-mid) var(--ease-out);
}

.button:hover .arrow {
  transform: translateX(3px);
}

/* --- Accessibility ------------------------------------------------- */
.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;
  top: -100%;
  left: var(--gutter);
  z-index: var(--z-overlay);
  padding: 0.6em 1em;
  background: var(--color-ink);
  color: var(--color-bg);
  border-radius: var(--radius);
}

.skip-link:focus {
  top: var(--space-xs);
}

/* --- Scroll reveal ------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  will-change: opacity, transform;
}

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

.no-js [data-reveal] {
  opacity: 1;
  transform: none;
}

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

/* --- Intro curtain ------------------------------------------------- */
.curtain {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  height: 100%;
  z-index: var(--z-curtain);
  display: grid;
  place-items: center;
  background: var(--curtain-bg);
  color: var(--curtain-ink);
  transform: translateY(100%);
  pointer-events: none;
  visibility: hidden;
}

.curtain::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 100%;
  height: 9vh;
  background: var(--curtain-bg);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}

.curtain__intro {
  display: none;
  align-items: center;
  gap: var(--space-s);
  font-size: var(--step-3);
  line-height: 1.08;
  letter-spacing: var(--tracking-tight);
}

.curtain__wordmark {
  font-weight: var(--weight-medium);
  white-space: nowrap;
}

.curtain__sep {
  align-self: stretch;
  width: 2px;
  background: currentColor;
  opacity: 0;
  transform: scaleY(0.55);
  transform-origin: center;
  transition: opacity var(--dur-fast) var(--ease-out),
    transform var(--dur-mid) var(--ease-out);
}

.curtain__sep.is-in {
  opacity: 0.9;
  transform: scaleY(1);
}

.curtain__roles {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: left;
}

.curtain__role {
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--dur-mid) var(--ease-out),
    transform var(--dur-mid) var(--ease-out);
}

.curtain__role.is-in {
  opacity: 1;
  transform: none;
}

html.intro-active .curtain__intro {
  display: flex;
}

html.intro-active .curtain {
  visibility: visible;
  animation: curtain-intro 3.2s var(--ease-in-out) forwards;
}

@keyframes curtain-intro {
  0%,
  80% { transform: translateY(0); }
  100% { transform: translateY(-110%); }
}

@media (prefers-reduced-motion: reduce) {
  .curtain { display: none; }
}

/* --- Header -------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: color-mix(in srgb, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.5rem;
}

.wordmark {
  font-size: var(--step-1);
  letter-spacing: var(--tracking-tight);
  font-weight: var(--weight-medium);
}

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

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

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

.nav__link {
  font-size: var(--step-0);
  color: var(--color-ink-dim);
  transition: color var(--dur-fast) var(--ease-out);
}

.nav__link:hover,
.nav__link[aria-current="page"] {
  color: var(--color-ink);
}

.nav__link[aria-current="page"] {
  text-decoration: underline;
  text-underline-offset: 0.35em;
  text-decoration-color: var(--color-accent);
}

.nav__toggle {
  display: none;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--step--1);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ink);
}

.nav__toggle-bars {
  display: inline-grid;
  gap: 4px;
}

.nav__toggle-bars span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--color-ink);
  transition: transform var(--dur-fast) var(--ease-out),
    opacity var(--dur-fast) var(--ease-out);
}

@media (max-width: 59.99rem) {
  .nav__toggle {
    display: inline-flex;
  }

  .nav__menu {
    position: fixed;
    inset: 4.5rem 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-s);
    padding: var(--space-l) var(--gutter) var(--space-xl);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur-mid) var(--ease-out),
      transform var(--dur-mid) var(--ease-out),
      visibility var(--dur-mid);
  }

  .nav__menu[data-open] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav__link {
    font-size: var(--step-3);
    color: var(--color-ink);
  }

  [aria-expanded="true"] .nav__toggle-bars span:first-child {
    transform: translateY(2.5px) rotate(45deg);
  }
  [aria-expanded="true"] .nav__toggle-bars span:last-child {
    transform: translateY(-2.5px) rotate(-45deg);
  }
}

body.nav-open {
  overflow: hidden;
}

/* --- Footer -------------------------------------------------------- */
.site-footer {
  padding-bottom: var(--space-l);
  margin-top: var(--space-m);
}

.site-footer__top {
  display: grid;
  gap: var(--space-xl);
  padding-block: var(--space-xl);
}

@media (min-width: 40rem) {
  .site-footer__top {
    grid-template-columns: 1fr auto;
    align-items: start;
  }
}

.site-footer__headline {
  display: block;
  margin-top: var(--space-s);
  font-size: var(--step-4);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  max-width: 14ch;
  transition: color var(--dur-fast) var(--ease-out);
}

.site-footer__headline:hover {
  color: var(--color-primary);
}

.site-footer__links {
  display: flex;
  gap: var(--space-xl);
}

.site-footer__col ul {
  margin-top: var(--space-s);
  display: grid;
  gap: var(--space-2xs);
}

.site-footer__col a {
  color: var(--color-ink-dim);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-m);
  justify-content: space-between;
  padding-top: var(--space-m);
  border-top: 1px solid var(--color-line);
  font-size: var(--step--1);
  color: var(--color-ink-dim);
}

/* --- Project card -------------------------------------------------- */
.card {
  display: block;
  color: inherit;
}

.card__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--color-line);
  aspect-ratio: 4 / 3;
}

.card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.card:hover .card__img {
  transform: scale(1.03);
}

.card__placeholder {
  width: 100%;
  height: 100%;
  background: radial-gradient(
    120% 120% at 70% 20%,
    color-mix(in srgb, var(--color-accent) 28%, var(--color-bg-raised)),
    var(--color-bg-raised) 55%,
    var(--color-bg) 100%
  );
  transition: transform var(--dur-slow) var(--ease-out);
  position: relative;
}

.card__placeholder::after {
  content: attr(data-client);
  position: absolute;
  inset: auto auto 1.2rem 1.4rem;
  font-size: var(--step--1);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ink-faint);
}

.card:hover .card__placeholder {
  transform: scale(1.03);
}

.card__index {
  position: absolute;
  top: 1rem;
  right: 1.4rem;
  font-size: var(--step-1);
  color: var(--color-ink-dim);
  font-variant-numeric: tabular-nums;
}

.card__body {
  padding-top: var(--space-s);
}

.card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  font-size: var(--step--1);
  color: var(--color-ink-dim);
}

.card__title {
  margin-top: var(--space-2xs);
  font-size: var(--step-2);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
  transition: color var(--dur-fast) var(--ease-out);
}

.card:hover .card__title {
  color: var(--color-primary);
}

.card__summary {
  margin-top: var(--space-2xs);
  max-width: 46ch;
  color: var(--color-ink-dim);
  font-size: var(--step-0);
}

.card__footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-m);
  align-items: baseline;
  justify-content: space-between;
  margin-top: var(--space-s);
  padding-top: var(--space-s);
  border-top: 1px solid var(--color-line);
  font-size: var(--step--1);
}

.card__metric strong {
  font-weight: var(--weight-medium);
  color: var(--color-ink);
}

.card__metric {
  color: var(--color-ink-dim);
}

.card__cue {
  display: inline-flex;
  gap: 0.5em;
  color: var(--color-ink);
}

.card__cue .arrow {
  transition: transform var(--dur-mid) var(--ease-out);
}

.card:hover .card__cue .arrow {
  transform: translateX(4px);
}

/* --- Work filter --------------------------------------------------- */
.work-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-l);
}

.work-filter__btn {
  padding: 0.5em 1.2em;
  border: 1px solid var(--color-line-strong);
  border-radius: 100px;
  font-size: var(--step--1);
  letter-spacing: var(--tracking-snug);
  color: var(--color-ink-dim);
  transition: all var(--dur-fast) var(--ease-out);
}

.work-filter__btn:hover {
  color: var(--color-ink);
  border-color: var(--color-ink);
}

.work-filter__btn[aria-pressed="true"] {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* --- Section header shared ----------------------------------------- */
.section-head {
  margin-bottom: var(--space-l);
}

.section-head__title {
  margin-top: var(--space-xs);
  font-size: var(--step-3);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
}