:root {
  --mono-900: #111111;
  --mono-800: #1d1d1d;
  --mono-700: #2d2d2d;
  --mono-100: #f4f4f4;
  --mono-050: #fcfcfc;
  --pastel-pink: #f3bdd7;
  --pastel-green: #a7d676;
  --pastel-blue: #bfe4ff;
  --header-height: 110px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Zen Kaku Gothic New", sans-serif;
  color: var(--mono-900);
  background:
    radial-gradient(circle at 10% 0%, rgba(243, 189, 215, 0.35), transparent 40%),
    radial-gradient(circle at 90% 20%, rgba(167, 214, 118, 0.3), transparent 42%),
    radial-gradient(circle at 60% 100%, rgba(191, 228, 255, 0.3), transparent 35%),
    var(--mono-050);
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  min-height: var(--header-height);
  border-bottom: 1px solid rgba(17, 17, 17, 0.15);
  backdrop-filter: blur(8px);
  background: rgba(252, 252, 252, 0.88);
}

.header-inner {
  width: min(1200px, 92vw);
  min-height: var(--header-height);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo-link img {
  width: auto;
  height: 80px;
  display: block;
  border-radius: 12px;
}

.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 0;
}

.primary-nav a {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.95rem;
  background: rgba(17, 17, 17, 0.04);
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.primary-nav a:hover {
  transform: translateY(-2px);
  background: var(--pastel-blue);
}

.filter-button {
  border: 1px solid rgba(17, 17, 17, 0.25);
  background: #ffffff;
  color: var(--mono-800);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.85rem;
  cursor: pointer;
}

.logo-filter-panel {
  position: absolute;
  right: 0;
  left: auto;
  top: calc(100% + 10px);
  width: min(310px, 78vw);
  padding: 14px;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid #000000;
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.1);
}

.filter-label,
.filter-caption {
  margin: 0 0 6px;
  display: block;
  font-size: 0.82rem;
  color: var(--mono-700);
}

.filter-input,
.filter-select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid rgba(17, 17, 17, 0.2);
  border-radius: 9px;
  margin-bottom: 10px;
  background: #ffffff;
}

.category-filters {
  display: grid;
  gap: 8px;
  max-height: 180px;
  overflow-y: auto;
  margin-bottom: 12px;
}

.category-filter-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
}

.clear-filters-button {
  width: 100%;
  border: none;
  border-radius: 9px;
  padding: 9px 10px;
  background: var(--mono-900);
  color: #ffffff;
  cursor: pointer;
}

.kebab-wrapper {
  position: relative;
}

.kebab-button {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(17, 17, 17, 0.3);
  background: white;
  display: grid;
  place-content: center;
  gap: 4px;
  cursor: pointer;
}

.kebab-button span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--mono-800);
}

.kebab-dropdown {
  position: absolute;
  right: 0;
  margin-top: 8px;
  min-width: 170px;
  padding: 8px;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid rgba(17, 17, 17, 0.15);
  box-shadow: 0 20px 30px rgba(0, 0, 0, 0.08);
}

.kebab-dropdown a {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
}

.kebab-dropdown a:hover {
  background: var(--pastel-pink);
}

.hero {
  position: relative;
  height: 80vh;
  min-height: 460px;
  margin-top: 16px;
  overflow: hidden;
}

.hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(25%) blur(1px) brightness(0.6);
  transform: scale(1.04);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 8px;
  width: min(1200px, 92vw);
  margin: 0 auto;
  color: #fefefe;
}

.hero-kicker {
  margin: 0;
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  color: var(--pastel-green);
}

.hero-overlay h1 {
  margin: 0;
  font-family: "Outfit", sans-serif;
  font-size: clamp(2rem, 4.3vw, 4rem);
  letter-spacing: 0.01em;
}

.hero-overlay p {
  margin: 0;
  max-width: 60ch;
}

.works {
  width: min(1200px, 92vw);
  margin: 56px auto;
}

.section-head h2 {
  font-family: "Outfit", sans-serif;
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  margin-bottom: 4px;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.section-head-copy {
  min-width: 0;
}

.section-head p {
  margin-top: 0;
  color: var(--mono-700);
}

.works-tools {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.works-filter {
  position: relative;
  flex: 0 0 auto;
}

.works-status {
  margin: 0;
  font-size: 0.9rem;
  color: var(--mono-700);
  text-align: right;
}

.filter-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(17, 17, 17, 0.25);
  background: #ffffff;
  color: var(--mono-800);
  border-radius: 999px;
  padding: 9px 14px;
  font-size: 0.9rem;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(17, 17, 17, 0.08);
}

.filter-button-icon {
  display: inline-grid;
  place-items: center;
  color: var(--mono-800);
}

.filter-button-text {
  line-height: 1;
}

.works-grid {
  /* Change column count here when the number of works grows. */
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.work-card {
  /* Base card style for each registered work item. */
  background: #ffffff;
  border: 2px solid rgba(17, 17, 17, 0.1);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(17, 17, 17, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.work-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(17, 17, 17, 0.12);
}

.work-card[data-category="お知らせ"] {
  border-color: #000000;
}

.work-card[data-category="自主制作作品"] {
  border-color: #f3bdd7;
}

.work-card[data-category="Web Application"] {
  border-color: #a7d676;
}

.work-card[data-category="授業内課題制作"] {
  border-color: #bfe4ff;
}

.work-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.work-body {
  padding: 14px;
}

.work-body h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.work-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
}

.work-category {
  display: inline-block;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(191, 228, 255, 0.5);
  font-size: 0.75rem;
}

.work-date {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--mono-700);
}

.work-software {
  display: inline-block;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(243, 189, 215, 0.5);
  font-size: 0.75rem;
}

.works-empty {
  margin: 0;
  padding: 16px;
  border-radius: 12px;
  border: 1px dashed rgba(17, 17, 17, 0.3);
  background: rgba(255, 255, 255, 0.7);
}

.work-page main {
  width: min(1200px, 92vw);
  margin: 36px auto 0;
}

.work-detail {
  display: grid;
  gap: 28px;
  margin: 18px 0 56px;
}

.work-detail-empty {
  min-height: 50vh;
  align-content: center;
}

.work-breadcrumb {
  margin: 0;
  font-size: 0.92rem;
}

.work-breadcrumb a {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(17, 17, 17, 0.06);
}

.work-detail-hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: center;
}

.work-detail-copy h1 {
  margin: 10px 0 14px;
  font-family: "Outfit", sans-serif;
  font-size: clamp(2rem, 4vw, 4.2rem);
  line-height: 1.05;
}

.work-detail-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.work-detail-description {
  margin: 0;
  max-width: 60ch;
  font-size: 1rem;
  color: var(--mono-700);
}

.work-detail-visual {
  border-radius: 24px;
  overflow: hidden;
  border: 2px solid rgba(17, 17, 17, 0.1);
  box-shadow: 0 20px 40px rgba(17, 17, 17, 0.1);
  background: #fff;
}

.work-detail-visual img {
  width: 100%;
  display: block;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.work-gallery h2,
.work-overview h2 {
  font-family: "Outfit", sans-serif;
  margin: 0 0 14px;
  font-size: 1.4rem;
}

.work-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.work-gallery-item {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(17, 17, 17, 0.12);
}

.work-gallery-item.is-main {
  border-color: #000;
}

.work-gallery-item img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.work-gallery-item figcaption {
  padding: 10px 12px 12px;
  font-size: 0.82rem;
  color: var(--mono-700);
}

.work-overview-list {
  margin: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.work-overview-list div {
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(17, 17, 17, 0.08);
}

.work-overview-list dt {
  margin-bottom: 6px;
  font-size: 0.8rem;
  color: var(--mono-700);
}

.work-overview-list dd {
  margin: 0;
  font-weight: 700;
}

.work-body p {
  margin: 0 0 14px;
  font-size: 0.92rem;
  color: var(--mono-700);
}

.work-body a {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--mono-900);
  color: white;
  font-size: 0.85rem;
}

.site-footer {
  margin-top: 80px;
  padding: 46px 0 20px;
  color: var(--mono-100);
  background:
    linear-gradient(130deg, rgba(243, 189, 215, 0.15), transparent 38%),
    linear-gradient(250deg, rgba(191, 228, 255, 0.14), transparent 35%),
    var(--mono-900);
}

.footer-inner {
  width: min(1200px, 92vw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.8fr;
  gap: 26px;
}

.footer-brand img {
  border-radius: 10px;
}

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.86;
}

.footer-links h2,
.footer-social h2 {
  font-family: "Outfit", sans-serif;
  margin-top: 0;
  font-size: 1.1rem;
}

.footer-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.footer-links a {
  font-size: 0.9rem;
  opacity: 0.9;
}

.social-icons {
  display: flex;
  gap: 10px;
}

.social-icons a {
  width: 44px;
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-content: center;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.04);
}

.copyright {
  width: min(1200px, 92vw);
  margin: 22px auto 0;
  font-size: 0.78rem;
  opacity: 0.7;
}

@media (max-width: 980px) {
  .works-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .work-detail-hero,
  .work-gallery-grid,
  .work-overview-list {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 92px;
  }

  .header-inner {
    gap: 10px;
  }

  .primary-nav {
    display: none;
  }

  .filter-button {
    padding: 7px 10px;
    font-size: 0.8rem;
  }

  .logo-filter-panel {
    left: -8px;
    right: auto;
  }

  .hero {
    min-height: 430px;
  }

  .hero-overlay {
    justify-items: center;
    text-align: center;
  }

  .hero-overlay p {
    max-width: 34ch;
  }

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

  .section-head {
    flex-direction: column;
  }

  .works-tools {
    align-items: flex-start;
  }

  .works-status {
    text-align: left;
  }

  .works-filter {
    align-self: flex-start;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}