/* ==========================================================================
   토연 TOYEON — site.css
   Shared chrome (header, footer, page hero) + per-page blocks + all motion.
   Animation touches transform/opacity only and is fully neutralized under
   prefers-reduced-motion (bottom of file).
   ========================================================================== */

/* ---- Scroll reveal ------------------------------------------------------ */

[data-reveal] {
  opacity: 0;
  transform: translate3d(0, 22px, 0);
  transition:
    opacity 0.85s var(--ease-out),
    transform 0.85s var(--ease-out);
  transition-delay: var(--d, 0ms);
}

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

/* A reveal target inside a grid must not be nudged out of its own track: the
   22px offset is not part of the grid's height, so a following element can end
   up drawn over a card that is still animating in. Fade these in place. */
.pieces > [data-reveal] {
  transform: none;
}

/* Photo settles out of a slow push-in. Matches a direct <img> child and the
   .frame > img wrapper. The observed element itself is never clipped: a node
   whose painted area is zero is never reported as intersecting. */
[data-reveal="zoom"] img {
  transform: scale(1.1);
  transition: transform 1.5s var(--ease-out);
  transition-delay: var(--d, 0ms);
}

[data-reveal="zoom"].in img {
  transform: scale(1);
}

/* ---- Header ------------------------------------------------------------- */

.head {
  position: sticky;
  top: 0;
  z-index: 60;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease), padding 0.4s var(--ease);
  padding-block: 1.15rem;
}

.head[data-stuck] {
  border-bottom-color: var(--line);
  padding-block: 0.75rem;
}

.head__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.mark {
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.38em;
  text-transform: uppercase;
  color: var(--ink);
  padding-left: 0.1em;
}

.mark i {
  font-style: normal;
  color: var(--clay);
}

.nav {
  display: none;
  align-items: center;
  gap: clamp(1.1rem, 2.2vw, 2.25rem);
}

.nav a {
  position: relative;
  font-size: var(--fs-sm);
  color: var(--ink-3);
  transition: color 0.3s var(--ease);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 100%;
  height: 1px;
  background: var(--clay);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.nav a:hover {
  color: var(--ink);
}

.nav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
}

.nav a:hover::after,
.nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.head__cta {
  display: none;
}

@media (min-width: 900px) {
  .nav,
  .head__cta {
    display: flex;
  }
}

.burger {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-right: -8px;
}

.burger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--ink);
  transition: transform 0.4s var(--ease-out), opacity 0.3s var(--ease);
}

.burger span + span {
  margin-top: 6px;
}

.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(3.5px) rotate(45deg);
}

.burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-3.5px) rotate(-45deg);
}

@media (min-width: 900px) {
  .burger {
    display: none;
  }
}

.sheet {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: grid;
  align-content: center;
  gap: 0.35rem;
  padding: var(--gut);
  background: var(--paper);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
}

.sheet[data-open] {
  opacity: 1;
  visibility: visible;
}

.sheet a {
  font-size: clamp(1.75rem, 8vw, 2.75rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink);
  padding-block: 0.3rem;
  opacity: 0;
  transform: translate3d(0, 16px, 0);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}

.sheet[data-open] a {
  opacity: 1;
  transform: none;
  transition-delay: calc(110ms + var(--i, 0) * 50ms);
}

.sheet__close {
  position: absolute;
  top: 1rem;
  right: var(--gut);
  width: 44px;
  height: 44px;
  font-size: 1.5rem;
  color: var(--ink-3);
}

/* ---- Page hero (every page except home) -------------------------------- */

.phero {
  padding-block: clamp(2.5rem, 5vw, 4.5rem) clamp(1.75rem, 3vw, 2.75rem);
}

.phero h1 {
  font-size: var(--fs-hero);
  font-weight: 500;
  margin-top: 1rem;
  max-width: 22ch;
}

.phero .lead {
  margin-top: 1.35rem;
  max-width: 48ch;
}

.phero__media {
  margin-top: clamp(2rem, 3.5vw, 3rem);
}

/* Breadcrumb */
.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-xs);
  color: var(--ink-4);
}

.crumb a:hover {
  color: var(--ink);
}

.crumb span[aria-hidden] {
  color: var(--line);
}

/* ---- Home hero --------------------------------------------------------- */

.hero {
  padding-block: clamp(2.25rem, 4vw, 4rem) 0;
}

.hero h1 {
  font-size: var(--fs-hero);
  font-weight: 500;
  max-width: 24ch;
  margin-top: 1.25rem;
}

.hero__row {
  display: grid;
  gap: clamp(1.75rem, 3vw, 3rem);
  align-items: end;
}

@media (min-width: 900px) {
  .hero__row {
    grid-template-columns: 1.35fr 1fr;
  }
}

.hero__aside .lead {
  max-width: 40ch;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.hero__media {
  margin-top: clamp(2rem, 4vw, 3.5rem);
}

/* ---- Marquee ----------------------------------------------------------- */

.marquee {
  border-block: 1px solid var(--line);
  padding-block: 1.15rem;
  overflow: hidden;
}

.marquee__track {
  display: flex;
  width: max-content;
  gap: 3rem;
  animation: marquee 40s linear infinite;
  will-change: transform;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee__track > span {
  display: flex;
  align-items: center;
  gap: 3rem;
  font-size: var(--fs-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-4);
  white-space: nowrap;
}

.marquee__track b {
  color: var(--clay);
  font-weight: 500;
}

@keyframes marquee {
  to {
    transform: translate3d(calc(-50% - 1.5rem), 0, 0);
  }
}

/* ---- Section heading --------------------------------------------------- */

.shead {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1.25rem;
  padding-bottom: clamp(1.75rem, 3vw, 2.75rem);
}

.shead h2 {
  font-size: var(--fs-h2);
  margin-top: 0.9rem;
  max-width: 24ch;
}

.shead .lead {
  max-width: 34ch;
}

/* ---- Editorial two-column split --------------------------------------- */

.split {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: center;
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: 1fr 1fr;
  }

  .split--wide-left {
    grid-template-columns: 1.25fr 0.75fr;
  }

  .split--wide-right {
    grid-template-columns: 0.75fr 1.25fr;
  }
}

.split h2 {
  font-size: var(--fs-h2);
  margin-top: 0.9rem;
  max-width: 20ch;
}

.split p {
  margin-top: 1.25rem;
  max-width: 44ch;
  color: var(--ink-3);
}

/* ---- Piece grid (work) ------------------------------------------------- */

.pieces {
  display: grid;
  gap: clamp(2rem, 3.2vw, 3rem) clamp(1rem, 1.8vw, 1.5rem);
  grid-template-columns: repeat(2, 1fr);
  align-items: start;
}

@media (min-width: 760px) {
  .pieces {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1100px) {
  .pieces--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.piece {
  /* The card's children are <span>s (a <button> may not contain block elements),
     so the card itself must lay them out. As plain inline children they left the
     caption outside the card's own height and the next grid row rode up over it. */
  display: flex;
  flex-direction: column;
  text-align: left;
  padding: 0;
  border: 0;
  width: 100%;
}

.piece[hidden] {
  display: none;
}

.piece .frame img {
  transition: transform 0.85s var(--ease-out);
}

/* .frame is a <span> here; it needs to be a block to honour its aspect-ratio. */
.piece .frame {
  display: block;
  width: 100%;
}

.piece:hover .frame img {
  transform: scale(1.045);
}

.piece__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.85rem;
}

.piece__name {
  font-size: var(--fs-h3);
  color: var(--ink);
  font-weight: 500;
}

.piece__price {
  font-size: var(--fs-sm);
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.piece__sub {
  display: block;
  margin-top: 0.2rem;
  font-size: var(--fs-sm);
  color: var(--ink-4);
}

/* ---- Filters ----------------------------------------------------------- */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-bottom: clamp(1.5rem, 2.5vw, 2.25rem);
}

.filters button {
  padding: 0.55rem 1.1rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition:
    color 0.3s var(--ease),
    border-color 0.3s var(--ease),
    background-color 0.3s var(--ease);
}

.filters button:hover {
  color: var(--ink);
  border-color: var(--ink-4);
}

.filters button[aria-pressed="true"] {
  color: var(--paper);
  background: var(--ink);
  border-color: var(--ink);
}

/* ---- Lightbox ---------------------------------------------------------- */

.lb {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: color-mix(in srgb, var(--paper) 96%, transparent);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.32s var(--ease), visibility 0.32s;
}

.lb[data-open] {
  opacity: 1;
  visibility: visible;
}

.lb figure {
  max-width: min(1000px, 100%);
}

.lb img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 76svh;
  object-fit: contain;
  transform: scale(0.98);
  transition: transform 0.4s var(--ease-out);
}

.lb[data-open] img {
  transform: none;
}

.lb figcaption {
  margin-top: 0.9rem;
  font-size: var(--fs-sm);
  color: var(--ink-3);
  text-align: center;
}

.lb__x,
.lb__nav {
  position: absolute;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  color: var(--ink-3);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.lb__x:hover,
.lb__nav:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.lb__x {
  top: clamp(1rem, 3vw, 2rem);
  right: clamp(1rem, 3vw, 2rem);
  font-size: 1.3rem;
}

.lb__nav--prev {
  left: clamp(0.5rem, 3vw, 2rem);
  top: 50%;
  transform: translateY(-50%);
}

.lb__nav--next {
  right: clamp(0.5rem, 3vw, 2rem);
  top: 50%;
  transform: translateY(-50%);
}

/* ---- Process steps (studio) ------------------------------------------- */

.steps {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  counter-reset: step;
}

@media (min-width: 860px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

.step {
  display: grid;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.step__no {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--clay);
}

.step h3 {
  font-size: var(--fs-h3);
}

.step p {
  color: var(--ink-3);
  font-size: var(--fs-sm);
  max-width: 44ch;
}

/* ---- Class cards ------------------------------------------------------- */

.cards {
  display: grid;
  gap: clamp(1.5rem, 2.6vw, 2.25rem);
}

@media (min-width: 820px) {
  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
}

.card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.75rem;
  padding: clamp(1.25rem, 2vw, 1.75rem);
}

.card h3 {
  font-size: var(--fs-h3);
}

.card__price {
  font-size: var(--fs-h3);
  color: var(--ink);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.card ul {
  display: grid;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
  font-size: var(--fs-sm);
  color: var(--ink-3);
}

.card li {
  display: flex;
  gap: 0.5rem;
}

.card li::before {
  content: "—";
  color: var(--clay);
  flex: 0 0 auto;
}

/* ---- Info table -------------------------------------------------------- */

.info {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.info div {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 1rem;
  padding-block: 1.1rem;
  border-bottom: 1px solid var(--line);
  font-size: var(--fs-sm);
}

.info dt {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-4);
  padding-top: 0.15rem;
}

.info dd {
  margin: 0;
  color: var(--ink-2);
}

/* ---- FAQ --------------------------------------------------------------- */

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

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.2rem;
  font-size: var(--fs-h3);
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary i {
  flex: 0 0 auto;
  position: relative;
  width: 13px;
  height: 13px;
}

.faq summary i::before,
.faq summary i::after {
  content: "";
  position: absolute;
  inset: 50% 0 auto;
  height: 1px;
  background: var(--clay);
  transition: transform 0.4s var(--ease-out);
}

.faq summary i::after {
  transform: rotate(90deg);
}

.faq details[open] summary i::after {
  transform: rotate(0deg);
}

.faq__a {
  padding-bottom: 1.35rem;
  max-width: 62ch;
  font-size: var(--fs-sm);
  color: var(--ink-3);
}

/* ---- Form ------------------------------------------------------------- */

.form {
  display: grid;
  gap: 1.15rem;
}

.form__row {
  display: grid;
  gap: 1.15rem;
}

@media (min-width: 620px) {
  .form__row {
    grid-template-columns: 1fr 1fr;
  }
}

.form__status {
  min-height: 1.5em;
  font-size: var(--fs-sm);
  color: var(--celadon);
  font-weight: 600;
}

.form__note {
  font-size: var(--fs-xs);
  color: var(--ink-4);
}

/* ---- Next-page pager -------------------------------------------------- */

.pager {
  display: grid;
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}

@media (min-width: 760px) {
  .pager {
    grid-template-columns: 1fr 1fr;
  }
}

.pager a {
  display: grid;
  gap: 0.35rem;
  padding: clamp(1.75rem, 3.5vw, 3rem) var(--gut);
  background: var(--paper);
  transition: background-color 0.35s var(--ease);
}

.pager a:hover {
  background: var(--paper-2);
}

.pager__k {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clay);
}

.pager__t {
  font-size: var(--fs-h2);
  color: var(--ink);
  font-weight: 500;
  letter-spacing: -0.035em;
}

/* ---- Footer ----------------------------------------------------------- */

.foot {
  padding-block: clamp(2.5rem, 5vw, 4rem) 1.75rem;
  background: var(--paper-2);
  border-top: 1px solid var(--line);
}

.foot__top {
  display: grid;
  gap: 2rem;
  padding-bottom: 2.25rem;
}

@media (min-width: 760px) {
  .foot__top {
    grid-template-columns: 1.2fr 0.9fr 0.9fr;
  }
}

.foot__h {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin-bottom: 0.85rem;
}

.foot__list {
  display: grid;
  gap: 0.45rem;
  font-size: var(--fs-sm);
  color: var(--ink-3);
}

.foot__list a:hover {
  color: var(--ink);
}

.foot__bot {
  display: grid;
  gap: 0.7rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
  font-size: var(--fs-xs);
  color: var(--ink-4);
}

.foot__demo {
  color: var(--ink-3);
}

.foot details summary {
  cursor: pointer;
}

.foot details p {
  margin-top: 0.5rem;
  max-width: 70ch;
}

/* ==========================================================================
   Reduced motion
   ========================================================================== */

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

  [data-reveal],
  [data-reveal="zoom"] img {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .marquee__track {
    animation: none !important;
    transform: none !important;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}