/* =========  Basic Setting  ========= */
:root {

  /* Content width */
  --wid-min: 393px;
  --wid-max: 1440px;
  --wid-laptop: 1280px;
  --wid-mobile: 480px;

  /* Margin & Padding */
  --gap-xl: 128px;
  --gap-l: 64px;
  --gap-m2: 48px;
  --gap-m1: 32px;
  --gap-s2: 24px;
  --gap-s1: 16px;
  --gap-ss: 8px;

  /* Color */
  --col-darkgray: #333;
  --col-gray: #999;
  --col-lightgray: #f7f7f7;
  --col-white: #fff;

}

html,
body {
  background: var(--col-lightgray);
  color: var(--col-darkgray);
}


/* ========= Container & Section ========= */

/* Container */
.container {
  min-width: var(--wid-min);
  max-width: var(--wid-max);
  margin-inline: auto;
  padding-inline: var(--gap-l);
}

@media (min-width:768px) {
  .container {
    padding-inline: var(--gap-l);
  }
}

@media (max-width: 767px) {
  .container {
    padding-inline: var(--gap-s2);
  }
}

/* Section */
section {
  min-width: var(--wid-min);
  background-color: var(--col-lightgray);
}

.section-title {
  font: 40px/1.0 "Domaine Text-Light", Helvetica;
  margin: 0 0 64px;
}

@media (max-width:767px) {
  .section-title {
    font: 24px/1.0 "Domaine Text-Light", Helvetica;
    margin: 0 0 32px;
  }
}

/* =========  Common  ========= */

/* Gneral setting */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

a:hover {
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

/* Split */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin: 64px 0;
  align-items: start;
}

.split__left,
.split__right {
  min-width: 0;
}

.split__wide {
  grid-column: 1 / -1; 
  justify-self: end;
  width: clamp(640px, 75vw, 960px);
}

.split__wide > img {
  display: block;
  width: 100%;
  height: auto;
}


@media (min-width:768px) {
  .split {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width:767px) {
  .split {
    margin: 24px 0;
  }
  .split__wide {
    justify-self: stretch; 
    width: 100%;
  }
}

/* ========= Header ========= */

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  background: transparent;
  z-index: 1000;
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 48px 0 0;
  flex-wrap: wrap;
}

.site-title {
  font-family: "Domaine Text-Regular", Helvetica;
  letter-spacing: 0.2em;
  font-size: 16px;
  color: var(--col-darkgray);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  font: 12px/1 "Helvetica-Regular", Helvetica;
  color: var(--col-darkgray);
  text-decoration: none;
  white-space: nowrap;
}

.dot {
  width: 4px;
  height: 4px;
  border-radius: 2px;
  background: var(--col-darkgray);
  display: inline-block;
}
[id] {
  scroll-margin-top: 128px;
}

@media (max-width:767px) {
  .site-header__bar {
    flex-direction: column;
    justify-content: center;
    text-align: center;
    padding: 24px 0 0;
    gap: 24px;
  }

  .site-nav {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font: 11px/1 "Helvetica-Regular", Helvetica;
  }
}

/* =========  Hero  ========= */

.hero {
  height: 100svh;
  display: flex;
  align-items: flex-end;
  background-color: var(--col-white);
}

.hero__title {
  font: 56px/1.2 "Domaine Text-Light", Helvetica;
}

.hero__lead {
  font: 16px/1.5 "Helvetica-Regular", Helvetica;
}

@media (max-width:767px) {

  .hero .container {
    margin: 0 0 64px;
  }

  .hero__title {
    font: 32px/1.2 "Domaine Text-Light", Helvetica;
  }
}

@media (min-width:768px) {
  .hero .split {
    display: flex;
    align-items: flex-end;
  }

  .hero .split__left,
  .hero .split__right {
    flex: 1;
  }
}

/* =========  Projects  ========= */

.projects {
  background-color: var(--col-lightgray);
  margin: 128px 0;
}

.project__title {
  font: 16px/1.0 "Domaine Text-Regular", Helvetica;
  margin: 0 0 12px;
}

.project__meta {
  font: 16px/1.5 "Helvetica-Regular", Helvetica;
  margin: 0 0 24px;
}

.thumb {
  width: 100%;
  background-size: cover;
  background-position: 50% 50%;
  background-color: #ddd;
}

@media (max-width:767px) {
  .projects {
    margin: 128px 0;
  }
}


/* =========  About  ========= */

.about {
  background-color: var(--col-lightgray);
  margin: 128px 0;
}

.about__subtitle {
  font: 16px/1.5 "Helvetica-Regular", Helvetica;
  margin: 0;
}

.about__text {
  font: 16px/1.5 "Helvetica-Regular", Helvetica;
  margin: 0 0 32px;
}

.about a {
  font-style: italic;
  text-decoration: underline;
}

.list-about {
  font: 16px/1.5 "Helvetica-Regular", Helvetica;
  margin: 0 0 24px;
}

.img-prof {
  aspect-ratio: 1.02;
  background-image: url(../img/top/profile.jpg);
  position: relative;
  align-self: stretch;
  width: 100%;
  background-size: cover;
  background-position: 50% 50%;
}

@media (max-width:767px) {
  .about {
    margin: 128px 0 64px;
  }
}


/* =========  Footer  ========= */

.site-footer {
  background: #fff;
  padding: 64px 0;
  min-width: var(--wid-min);
  border-radius: 64px 64px 0 0;
}

.site-footer h3 {
  font: 16px/1.5 "Helvetica-Regular", Helvetica;
  margin: 0 0 64px;
}

.footer__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.footer__links li {
  font: 16px/2 "Helvetica-Regular", Helvetica;
}

.cta {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  text-decoration: none;
  color: inherit;
}

.cta__label {
  font: 54px/1.5 "Domaine Text-Light", Helvetica;
  margin: 0 0 4px;
}

.copyright {
  font: 16px/1.0 "Helvetica-Regular", Helvetica;
  margin: 256px 0 0;
}

@media (min-width:768px) {

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

@media (max-width:767px) {

  .site-footer {
    padding: 64px 0;
    border-radius: 32px 32px 0 0;
  }

  .site-footer h3 {
    margin: 0 0 16px;
  }
  .cta__label {
    font: 36px/1 "Domaine Text-Light", Helvetica;
    margin: 12px 0 0;
  }
  .cta__arrow img{
    height: 28px;
    margin: 4px 0 8px;
  }

  .footer__links {
    gap: 48px;
  }

  .copyright {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 64px 0 0;
  }
}


/* =========  以下はプロジェクト個別ページ  ========= */

.project-detail{
margin: 144px 0 128px;
}

.project-title {
  font: 40px/1.2 "Domaine Text-Light", Helvetica;
}

.project-meta {
  font: 16px/1.5 "Helvetica-Regular", Helvetica;
}

.project-summary {
  font: 16px/1.5 "Helvetica-Regular", Helvetica;
}

.project-summary i {
  font-style: italic;
}
.project-detail__split {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 32px;
  align-items: start;
}

.project-detail__information {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.project-detail__information a {
  font-style: italic;
  text-decoration: underline;
}

.project-detail__images {
  display: flex;
  flex-direction: column;
  gap: 24px; /* spacing between stacked images */
}

.project-detail__images img {
  display: block;
  width: 100%;
  height: auto;
}

.project-detail__back {
  font: 32px/1.0 "Domaine Text-Light", Helvetica;
  border-bottom: 1px solid var(--col-darkgray);
  padding: 0 0 64px;
  margin: 128px 0;
}

.project-detail__back a {
  display: inline-flex;
  align-items: center;
  gap: 32px;
  text-decoration: none;
  color: inherit;
}

.project-detail__back img {
  width: 28px;
  height: auto;
}

@media (max-width: 767px) {
  .project-detail{
    margin: 128px 0 64px;
  }
  .project-detail__information {
    gap: 32px;
  }

  .project-title {
    font: 32px/1.2 "Domaine Text-Light", Helvetica;
  }

  .project-detail__split {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .project-detail__images {
    gap: 16px; 
  }

  .project-detail__back a {
    gap: 24px;
  }

  .project-detail__back {
    font: 24px/1.0 "Domaine Text-Light", Helvetica;
    border-bottom: 1px solid var(--col-darkgray);
    padding: 0 0 24px;
    margin: 64px 0 128px;
  }
  .project-detail__back img {
    width: 24px;
    height: auto;
  }

}