:root {
  color-scheme: light;
  --color-blue: #004f7d;
  --color-deep-blue: #002778;
  --color-cyan: #0078AD;
  --color-lime: #cde821;
  --color-yellow: #fff100;
  --color-orange: #f28b25;
  --color-white: #fff;
  --color-text: #102033;
  --color-muted: #4d5d68;
  --content-width: 960px;
  --header-height: 74px;
  --header-color: #EBEAE7;
  --margin: 5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text);
  font-family: "LINE Seed JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-feature-settings: "palt";
  line-height: 1.7;
}

:root:has(dialog[open]) {
  overflow: hidden;
  overflow-x: clip;
  scrollbar-gutter: stable;
}

:root.is-lightbox-open {
  overflow: hidden;
  scrollbar-gutter: stable;
}

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

picture {
  display: block;
}

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

button {
  font: inherit;
}

[hidden] {
  display: none !important;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  min-height: var(--header-height);
  padding: 10px max(20px, calc((100vw - var(--content-width)) / 2));
  background: var(--header-color);
  box-shadow: 0 2px 18px rgba(0, 0, 0, 0.08);
}

.site-header__logo img {
  width: 136px;
  height: auto;
}

.site-header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.site-header__link {
  display: block;
  transition: transform 180ms ease, filter 180ms ease;
}

.site-header__link:hover,
.site-header__link:focus-visible {
  transform: translateY(-2px);
  filter: drop-shadow(0 4px 5px rgba(0, 0, 0, 0.46));
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(0, 79, 125, 0.22);
}

.site-header__link img {
  width: 178px;
  height: auto;
}

.site-header__tel img {
  width: 178px;
  height: auto;
}

.hero {
  position: relative;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  width: min(var(--content-width), 100%);
  margin-inline: auto;
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.button {
  display: inline-grid;
  min-height: 48px;
  place-items: center;
  padding: 10px 28px;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1.3;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.button--accent {
  background: var(--color-yellow);
  color: var(--color-blue);
  border: 2px solid var(--color-orange);
}

.intro,
.works,
.content-image {
  width: min(var(--content-width), 100%);
  margin-inline: auto;
}

.intro {
  position: relative;
  z-index: 2;
  margin-top: calc(var(--margin)/ 4);
}

.intro__inner {
  overflow: hidden;
  position: relative;
  bottom: -70px;
}

.intro__inner>img,
.intro__inner picture>img {
  width: 100%;
  height: auto;
}

.intro__inner .intro__cta {
  position: absolute;
  bottom: 15%;
  right: 4%;
  width: 37.5%;
}

.intro__cta,
.cta-image {
  display: block;
  transition: transform 180ms ease, filter 180ms ease;
}

.intro__cta:hover,
.intro__cta:focus-visible,
.cta-image:hover,
.cta-image:focus-visible {
  transform: translateY(-2px);
  filter: drop-shadow(0 4px 5px rgba(0, 0, 0, 0.46));
}

.cta-image img {
  width: 100%;
  height: auto;
}

.works {
  padding-bottom: 45px;
  color: #fff;
  background: var(--color-cyan);
}

.works__inner {
  background: var(--color-cyan);
}

.works__inner+.works__inner {
  margin-top: calc(var(--margin) / 3);
}

.works__content {
  margin: 0 45px;
  padding: 10px;
  background: var(--color-white);
}

.works__youtube_image_content {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  width: 100%;
  max-width: 80%;
  margin-inline: auto;
  margin-top: calc(var(--margin) / 3.5);
}

.works__youtube_image_content iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.works__image_grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 5px;
  width: 100%;
  max-width: 80%;
  margin: 6px auto 0;
}

.works__image_grid button {
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.works__image_grid button:hover,
.works__image_grid button:focus-visible {
  outline: 3px solid var(--color-yellow);
  outline-offset: -3px;
}

.works__image_grid img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.works__image_grid_main {
  grid-row: span 2;
}

.works__image_grid_tags {
  display: none;
}

.works__content_cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(150px, 28%);
  align-items: center;
  gap: 14px;
  width: 100%;
  margin-top: 6px;
  padding-left: 10%;
}

.works__content_tags {
  width: 100%;
  height: auto;
}

.works__content_tags--compact {
  width: 49.5%;
}

.works__detail_link {
  display: block;
  justify-self: end;
  width: 100%;
  max-width: 210px;
  transition: transform 180ms ease, filter 180ms ease;
}

.works__detail_link:hover,
.works__detail_link:focus-visible {
  filter: brightness(1.05) drop-shadow(0 4px 5px rgba(0, 0, 0, 0.46));
  transform: translateY(-2px);
}

.works__detail_link img {
  width: 100%;
  height: auto;
}

.contact-bar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  width: min(var(--content-width), 100%);
  margin-inline: auto;
  padding: 30px 45px;
  background: var(--color-lime);
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.22);
  position: relative;
  z-index: 1;
}

.contact-bar__tel {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 8px;
  color: #102033;
  font-size: 14px;
  font-weight: 800;
}

.contact-bar__tel img {
  width: 100%;
  height: auto;
}

.content-image {
  background: #f3f1ed;
}

.content-image img {
  width: 100%;
  height: auto;
}

.contact-bar--bottom {
  margin-top: 0;
}

.site-footer {
  display: grid;
  justify-items: center;
  gap: 8px;
  width: min(var(--content-width), 100%);
  margin-inline: auto;
  padding: 60px 20px 25px;
  background: #f3f1ed;
  text-align: center;
}

.site-footer img {
  width: 320px;
  height: auto;
}

.site-footer p,
.site-footer small {
  margin: 0;
}

.site-footer p {
  font-weight: 700;
}

.site-footer small {
  color: var(--color-muted);
}

.lightbox {
  position: fixed;
  z-index: 100;
  inset: 50% auto auto 50%;
  width: min(86vw, 960px);
  max-height: 86svh;
  overflow: visible;
  padding: 0;
  border: 0;
  background: transparent;
  opacity: 0;
  transform: translate(-50%, -48%) scale(0.96);
  transition:
    opacity 180ms ease,
    transform 180ms ease,
    overlay 180ms ease allow-discrete,
    display 180ms ease allow-discrete;
}

.lightbox__overlay {
  position: fixed;
  z-index: 90;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(12px);
}

.lightbox[open] {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

@starting-style {
  .lightbox[open] {
    opacity: 0;
    transform: translate(-50%, -48%) scale(0.96);
  }
}

.lightbox__image {
  width: 100%;
  max-height: 86svh;
  object-fit: contain;
  background: #fff;
}

.lightbox__close {
  position: fixed;
  z-index: 110;
  top: 2%;
  right: 2%;
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  padding: 0;
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: 999px;
  background: rgba(0, 79, 125, 0.92);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.28);
  cursor: pointer;
  transition: transform 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.lightbox__nav {
  position: fixed;
  z-index: 110;
  top: 50%;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  padding: 0;
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: 999px;
  background: rgba(0, 79, 125, 0.92);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.28);
  cursor: pointer;
  transform: translateY(-50%);
  transition: transform 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.lightbox__nav--prev {
  left: 2%;
}

.lightbox__nav--next {
  right: 2%;
}

.lightbox__nav::before {
  content: "";
  width: 14px;
  height: 14px;
  border-top: 4px solid #fff;
  border-right: 4px solid #fff;
}

.lightbox__nav--prev::before {
  margin-left: 5px;
  transform: rotate(-135deg);
}

.lightbox__nav--next::before {
  margin-right: 5px;
  transform: rotate(45deg);
}

.lightbox__close::before,
.lightbox__close::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 3px;
  border-radius: 999px;
  background: #fff;
}

.lightbox__close::before {
  transform: rotate(45deg);
}

.lightbox__close::after {
  transform: rotate(-45deg);
}

.lightbox__close:hover {
  background: var(--color-orange);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.36);
}

.lightbox__nav:hover {
  background: var(--color-orange);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.36);
  transform: translateY(-50%) scale(1.06);
}

.lightbox__close:focus-visible,
.lightbox__nav:focus-visible {
  outline: 3px solid var(--color-yellow);
  outline-offset: -5px;
}

@media (max-width: 760px) {
  :root {
    --header-height: 64px;
    --margin: 3rem;
  }

  .site-header {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 20px;
    min-height: auto;
    padding: 8px 12px 10px;
  }

  .site-header__logo img {
    width: 122px;
  }

  .site-header__nav {
    display: block;
    justify-self: start;
  }

  .site-header__link img {
    width: 100%;
  }

  .site-header__tel {
    position: relative;
    grid-column: 1 / -1;
    width: 100%;
  }

  .site-header__tel img {
    width: 100%;
  }

  .hero {
    width: 100%;
  }

  .intro {
    margin-top: 0;
  }

  .intro__inner {
    bottom: -25px;
  }

  .intro__inner .intro__cta {
    right: 4.5%;
    bottom: 18.7%;
    width: 91%;
  }

  .works {
    padding-bottom: 20px;
  }

  .works__content {
    margin: 0 12px;
    padding: 15px 20px;
  }

  .works__content picture {
    margin: 0 -20px 0 -10px;
  }

  .works__inner+.works__inner {
    margin-top: calc(var(--margin) / 2);
  }

  .works__youtube_image_content,
  .works__image_grid,
  .works__content_cta {
    width: 100%;
    max-width: 100%;
  }

  .works__youtube_image_content {
    margin-top: 18px;
  }

  .works__image_grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .works__image_grid_main {
    grid-column: auto;
    grid-row: auto;
  }

  .works__image_grid_tags {
    display: grid;
    background: var(--color-white);
  }

  .works__image_grid_tags img {
    width: 100%;
    height: auto;
    aspect-ratio: auto;
    object-fit: contain;
  }

  .works__content_cta {
    grid-template-columns: 1fr;
    gap: 8px;
    padding-left: 0;
    margin-top: 12px;
  }

  .works__content_cta>picture {
    display: none;
  }

  .works__detail_link {
    justify-self: end;
    width: 100%;
    max-width: none;
    transform: none;
  }

  .works__detail_link:hover,
  .works__detail_link:focus-visible {
    transform: translateY(-2px);
  }

  .lightbox {
    width: min(90vw, calc((78svh - 86px) * 16 / 9));
    max-height: calc(78svh - 86px);
  }

  .lightbox__image {
    max-height: calc(78svh - 86px);
  }

  .lightbox__close {
    top: auto;
    right: auto;
    bottom: max(18px, env(safe-area-inset-bottom));
    left: 50%;
    transform: translateX(-50%);
  }

  .lightbox__close:hover,
  .lightbox__close:focus-visible {
    transform: translateX(-50%);
  }

  .lightbox__nav {
    top: auto;
    bottom: max(18px, env(safe-area-inset-bottom));
    width: 46px;
    height: 46px;
    transform: none;
  }

  .lightbox__nav--prev {
    left: calc(50% - 72px);
  }

  .lightbox__nav--next {
    right: calc(50% - 72px);
  }

  .lightbox__nav:hover,
  .lightbox__nav:focus-visible {
    transform: none;
  }

  .contact-bar__tel {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .contact-bar {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px;
  }

  .site-footer {
    padding: 10px 20px 18px;
  }

  .site-footer img {
    max-width: 280px;
  }
}