:root {
  --archive-navy: #13245c;
  --archive-blue: #3e70dc;
  --archive-open: #2878b8;
  --archive-locked: #6a5ca8;
  --archive-background: #f7faff;
  --archive-panel: rgba(255, 255, 255, 0.78);
  --archive-line: rgba(19, 36, 92, 0.18);
  --archive-line-strong: rgba(19, 36, 92, 0.32);
  --archive-muted: rgba(19, 36, 92, 0.62);
}

* {
  box-sizing: border-box;
}

html {
  color: var(--archive-navy);
  background: var(--archive-background);
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Helvetica Neue",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    sans-serif;
}

body {
  min-height: 100vh;
  margin: 0;
  background-color: var(--archive-background);
  background-image:
    linear-gradient(
      rgba(74, 118, 220, 0.1) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      rgba(74, 118, 220, 0.1) 1px,
      transparent 1px
    );
  background-size: 32px 32px;
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 16px clamp(20px, 4vw, 64px);
  border-bottom: 1px solid var(--archive-line);
  background: rgba(247, 250, 255, 0.9);
  backdrop-filter: blur(12px);
}

.site-header__logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.site-header__navigation {
  display: flex;
  gap: 24px;
}

.site-header__navigation a {
  position: relative;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-header__navigation a[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
}

.portfolio {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 80px 0 120px;
}

.archive-status__label,
.portfolio-collection__index,
.work-card__access-state,
.work-card__category,
.work-card__level {
  font-variant-numeric: tabular-nums;
}

.archive-status {
  border-top: 1px solid var(--archive-line-strong);
  border-bottom: 1px solid var(--archive-line-strong);
  background: var(--archive-panel);
}

.archive-status__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 16px;
  border-bottom: 1px solid var(--archive-line);
}

.archive-status__label,
.archive-status__caption {
  margin: 0;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.archive-status__caption {
  color: var(--archive-muted);
}

.archive-status__list {
  margin: 0;
}

.archive-status__item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 58px;
  padding: 0 16px;
  border-bottom: 1px solid var(--archive-line);
}

.archive-status__item:last-child {
  border-bottom: 0;
}

.archive-status__item dt {
  color: var(--archive-muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.archive-status__item dd {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.portfolio-collection {
  min-width: 0;
}

.portfolio-collection__heading {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 32px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--archive-line-strong);
}

.portfolio-collection__index {
  margin: 0;
  color: var(--archive-muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.portfolio-collection__heading h2 {
  margin: 0;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 64px 24px;
}

.work-card {
  min-width: 0;
}

.work-card__system-header,
.work-card__system-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 38px;
  padding: 0 10px;
  border-right: 1px solid var(--archive-line);
  border-left: 1px solid var(--archive-line);
  background: rgba(247, 250, 255, 0.84);
}

.work-card__system-header {
  justify-content: flex-end;
  border-top: 1px solid var(--archive-line-strong);
  border-bottom: 1px solid var(--archive-line);
}

.work-card__system-footer {
  border-top: 1px solid var(--archive-line);
  border-bottom: 1px solid var(--archive-line-strong);
}

.work-card__access-state,
.work-card__category,
.work-card__level {
  margin: 0;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.work-card__access-state {
  display: flex;
  align-items: center;
  gap: 7px;
}

.work-card__access-state--open {
  color: var(--archive-open);
}

.work-card__access-state--locked {
  color: var(--archive-locked);
}

.work-card__access-state--unlocked {
  color: var(--archive-open);
}

.work-card__access-state--unlocked
  .work-card__access-indicator {
  box-shadow:
    0 0 0 3px rgba(40, 120, 184, 0.08),
    0 0 10px rgba(40, 120, 184, 0.22);
}

.work-card__access-indicator {
  width: 6px;
  height: 6px;
  border: 1px solid currentColor;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px rgba(19, 36, 92, 0.05);
}

.work-card__image-link {
  position: relative;
  display: block;
  overflow: hidden;
  border-right: 1px solid var(--archive-line);
  border-left: 1px solid var(--archive-line);
  background: #ffffff;
}

.work-card__image-link::after {
  position: absolute;
  inset: 8px;
  border: 1px solid transparent;
  pointer-events: none;
  content: "";
  transition: border-color 200ms ease;
}

.work-card__image-link:hover::after,
.work-card__image-link:focus-visible::after {
  border-color: rgba(255, 255, 255, 0.72);
}

.work-card__image {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  transition:
    transform 300ms ease,
    filter 300ms ease;
}

.work-card__image-link:hover .work-card__image {
  transform: scale(1.018);
}

.work-card__category {
  color: var(--archive-muted);
}

.work-card__level {
  color: var(--archive-navy);
}

.work-card__body {
  padding: 18px 4px 0;
}

.work-card__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.45;
}

.work-card__title a {
  text-decoration: none;
}

.work-card__title a:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.work-card__metadata {
  margin: 8px 0 0;
  color: var(--archive-muted);
  font-size: 0.76rem;
  line-height: 1.7;
}

.work-card__description {
  display: -webkit-box;
  overflow: hidden;
  margin: 12px 0 0;
  font-size: 0.86rem;
  line-height: 1.8;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.portfolio__empty-message {
  margin: 0;
  padding: 48px 16px;
  border-top: 1px solid var(--archive-line);
  border-bottom: 1px solid var(--archive-line);
  background: var(--archive-panel);
  color: var(--archive-muted);
  font-size: 0.9rem;
  text-align: center;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 32px clamp(20px, 4vw, 64px);
  border-top: 1px solid var(--archive-line);
  font-size: 0.75rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  text-decoration: none;
}

@media (max-width: 900px) {
  .archive-status {
    width: min(100%, 520px);
  }

  .work-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  body {
    background-size: 24px 24px;
  }

  .site-header {
    min-height: 60px;
    padding: 14px 20px;
  }

  .portfolio {
    width: min(100% - 32px, 1180px);
    padding: 56px 0 80px;
  }

  .archive-status__heading,
  .archive-status__item {
    padding-right: 12px;
    padding-left: 12px;
  }

  .portfolio-collection__heading {
    margin-bottom: 24px;
  }

  .work-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .work-card__system-header,
  .work-card__system-footer {
    min-height: 40px;
  }

  .site-footer {
    padding: 24px 20px;
  }
}


/* Mobile Archive Status Balance */
@media (max-width: 600px) {
  .archive-status {
    width: calc(100% - 16px);
    margin-right: auto;
    margin-left: auto;
    border-right: 1px solid var(--archive-line-strong);
    border-left: 1px solid var(--archive-line-strong);
  }

  .archive-status__heading {
    flex-direction: column;
    justify-content: center;
    min-height: 68px;
    gap: 7px;
    padding: 10px 16px;
  }

  .archive-status__item {
    padding-right: 16px;
    padding-left: 16px;
  }

}




/* ========================================================
   Portfolio Progress Status
   ======================================================== */

.portfolio .archive-status__list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.portfolio .archive-status__item {
  padding: 18px 16px;
  border-right: 1px solid var(--archive-line);
  border-bottom: 1px solid var(--archive-line);
}

.portfolio .archive-status__item:nth-child(2n) {
  border-right: 0;
}

.portfolio .archive-status__item:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.archive-status__progress {
  padding: 15px 16px 17px;
  border-top: 1px solid var(--archive-line);
}

.archive-status__progress-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.archive-status__progress-heading p {
  margin: 0;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.archive-status__progress-heading p:last-child {
  color: var(--archive-blue);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
}

.archive-status__progress-track {
  height: 4px;
  margin-top: 10px;
  overflow: hidden;
  background: var(--archive-line);
}

.archive-status__progress-track span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--archive-blue);
  transition: width 320ms ease;
}

@media (max-width: 600px) {
  .portfolio .archive-status__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .portfolio .archive-status__item {
    min-height: 88px;
    padding: 15px 16px;
  }

  .archive-status__progress {
    padding-right: 16px;
    padding-left: 16px;
  }
}

/* ========================================================
   Locked Work Visual State
   ======================================================== */

.work-card--locked .work-card__image {
  filter:
    grayscale(1)
    saturate(0)
    contrast(0.9)
    brightness(0.88);
}

.work-card--locked .work-card__image-link::before {
  position: absolute;
  z-index: 1;
  inset: 0;
  background: rgba(19, 36, 92, 0.08);
  pointer-events: none;
  content: "";
}

.work-card--locked .work-card__image-link:hover
  .work-card__image,
.work-card--locked .work-card__image-link:focus-visible
  .work-card__image {
  filter:
    grayscale(0.82)
    saturate(0.28)
    contrast(0.94)
    brightness(0.92);
}

.work-card--open .work-card__image,
.work-card--unlocked .work-card__image {
  filter: none;
}

/* ========================================================
   Work Archive Interface Shell
   ======================================================== */

.portfolio-interface {
  display: grid;
  grid-template-columns:
    minmax(130px, 0.4fr)
    minmax(0, 3fr)
    minmax(170px, 0.55fr);
  gap: clamp(20px, 2vw, 32px);
  align-items: start;
}

.portfolio-interface__navigation,
.portfolio-interface__guide {
  min-width: 0;
}

.portfolio-interface__guide {
  display: grid;
  gap: 28px;
}

.portfolio-side-panel {
  padding-top: 14px;
  border-top: 1px solid var(--archive-line-strong);
}

.portfolio-side-panel__label {
  margin: 0 0 20px;
  color: var(--archive-muted);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.portfolio-side-panel__description {
  margin: 0;
  color: var(--archive-muted);
  font-size: 0.78rem;
  line-height: 1.9;
}

.portfolio-archive-navigation {
  display: grid;
}

.portfolio-archive-navigation a {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  padding: 12px 0;
  border-bottom: 1px solid var(--archive-line);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  line-height: 1.45;
  text-decoration: none;
}

.portfolio-archive-navigation a:first-child {
  border-top: 1px solid var(--archive-line);
}

.portfolio-archive-navigation a span {
  color: var(--archive-muted);
  font-variant-numeric: tabular-nums;
}

.portfolio-archive-navigation a[aria-current="page"] {
  color: var(--archive-blue);
}

.portfolio-archive-navigation a:hover,
.portfolio-archive-navigation a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.portfolio-side-panel__home {
  display: inline-block;
  margin-top: 24px;
  color: var(--archive-muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.portfolio-side-panel__home:hover,
.portfolio-side-panel__home:focus-visible {
  color: var(--archive-navy);
}

.portfolio-status-legend {
  margin: 0;
}

.portfolio-status-legend div {
  padding: 12px 0;
  border-bottom: 1px solid var(--archive-line);
}

.portfolio-status-legend div:first-child {
  border-top: 1px solid var(--archive-line);
}

.portfolio-status-legend dt,
.portfolio-status-legend dd {
  margin: 0;
}

.portfolio-status-legend dt {
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.portfolio-status-legend dd {
  margin-top: 5px;
  color: var(--archive-muted);
  font-size: 0.7rem;
  line-height: 1.6;
}

@media (max-width: 1080px) {
  .portfolio-interface {
    grid-template-columns:
      minmax(150px, 0.48fr)
      minmax(0, 1.8fr);
  }

  .portfolio-interface__guide {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .portfolio-interface {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .portfolio-collection {
    order: 1;
  }

  .portfolio-interface__guide {
    order: 2;
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .portfolio-interface__navigation {
    order: 3;
  }
}


/* ========================================================
   Portfolio Content Priority Layout
   ======================================================== */

.portfolio {
  padding-top: 48px;
}

.portfolio-layout {
  grid-template-columns:
    minmax(130px, 0.4fr)
    minmax(0, 3fr)
    minmax(170px, 0.55fr);
  grid-template-areas:
    "hero hero status"
    "navigation collection guide";
  column-gap: clamp(20px, 2vw, 32px);
  row-gap: 48px;
  align-items: start;
  margin-bottom: 0;
}

.portfolio-hero__heading {
  grid-area: hero;
  align-self: start;
  padding-top: 0;
}

.portfolio-layout > .archive-status {
  grid-area: status;
  align-self: start;
  width: 100%;
  margin-bottom: 0;
}

.portfolio-layout > .portfolio-interface {
  display: contents;
}

.portfolio-interface__navigation {
  grid-area: navigation;
}

.portfolio-collection {
  grid-area: collection;
}

.portfolio-interface__guide {
  grid-area: guide;
}

@media (max-width: 1080px) and (min-width: 761px) {
  .portfolio-layout {
    grid-template-columns:
      minmax(150px, 0.48fr)
      minmax(0, 1.8fr);
    grid-template-areas:
      "hero status"
      "navigation collection"
      "guide guide";
  }

  .portfolio-interface__guide {
    grid-template-columns:
      repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .portfolio {
    padding-top: 40px;
  }

  .portfolio-layout {
    grid-template-columns: 1fr;
    grid-template-areas:
      "hero"
      "collection"
      "status"
      "guide"
      "navigation";
    gap: 40px;
  }

  .portfolio-hero__heading {
    grid-area: hero;
  }

  .portfolio-collection {
    grid-area: collection;
  }

  .portfolio-layout > .archive-status {
    grid-area: status;
    width: calc(100% - 16px);
    margin-right: auto;
    margin-left: auto;
  }

  .portfolio-interface__guide {
    grid-area: guide;
    grid-template-columns: 1fr;
  }

  .portfolio-interface__navigation {
    grid-area: navigation;
  }
}


/* ========================================================
   Desktop Portfolio Status Stability
   ======================================================== */

@media (min-width: 761px) {
  .portfolio-layout {
    grid-template-columns:
      minmax(130px, 0.4fr)
      minmax(0, 3fr)
      minmax(230px, 0.68fr);
  }

  .portfolio-layout > .archive-status {
    min-width: 230px;
  }

  .portfolio .archive-status__heading {
    gap: 12px;
    padding-right: 12px;
    padding-left: 12px;
  }

  .portfolio .archive-status__label,
  .portfolio .archive-status__caption {
    min-width: 0;
    font-size: 0.56rem;
    letter-spacing: 0.13em;
    white-space: nowrap;
  }

  .portfolio .archive-status__caption {
    text-align: right;
  }

  .portfolio .archive-status__item {
    grid-template-columns:
      minmax(0, 1fr)
      auto;
    gap: 8px;
    min-width: 0;
    padding-right: 12px;
    padding-left: 12px;
  }

  .portfolio .archive-status__item dt {
    min-width: 0;
    font-size: 0.58rem;
    letter-spacing: 0.12em;
    white-space: nowrap;
  }

  .portfolio .archive-status__item dd {
    min-width: 2ch;
    font-size: 1.18rem;
    line-height: 1;
    text-align: right;
    white-space: nowrap;
  }

  .portfolio .archive-status__progress {
    padding-right: 12px;
    padding-left: 12px;
  }

  .portfolio .archive-status__progress-heading {
    gap: 10px;
  }

  .portfolio .archive-status__progress-heading p {
    white-space: nowrap;
  }
}

@media (min-width: 761px) and (max-width: 1080px) {
  .portfolio-layout {
    grid-template-columns:
      minmax(150px, 0.48fr)
      minmax(0, 1.8fr);
    grid-template-areas:
      "hero status"
      "navigation collection"
      "guide guide";
  }

  .portfolio-layout > .archive-status {
    min-width: 260px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .work-card__image,
  .work-card__image-link::after {
    transition: none;
  }
}