/* =========================================================
   CHANG SHU — WORK PAGES
   Shared stylesheet
========================================================= */


/* =========================================================
   RESET
========================================================= */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #fff;
  color: #111;

  font-family:
    "Helvetica Neue",
    Helvetica,
    Arial,
    sans-serif;

  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

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

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


/* =========================================================
   GLOBAL
========================================================= */

:root {
  --black: #111;
  --gray: #777;
  --light-gray: #dedede;
  --very-light-gray: #f5f5f3;
  --red: #d71920;

  --page-x: 42px;
  --section-x: 2vw;
}

.page {
  width: 100%;
  min-height: 100vh;

  padding:
    32px
    var(--page-x)
    34px;
}


/* =========================================================
   MAIN HEADER
========================================================= */

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;

  width: 100%;

  padding-bottom: 26px;
  border-bottom: 1px solid var(--light-gray);
}


/* LEFT */

.header-left {
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-logo {
  display: block;

  width: 34px;
  height: auto;

  opacity: .7;

  transition:
    opacity .3s ease,
    transform .3s ease;
}

.site-logo:hover {
  opacity: 1;
  transform: rotate(-3deg);
}

.location {
  padding-left: 18px;

  border-left: 1px solid #bbb;

  font-size: 9px;
  line-height: 1.4;

  letter-spacing: .12em;
  text-transform: uppercase;

  color: #777;
}


/* RIGHT */

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.main-nav a {
  position: relative;

  padding-bottom: 5px;

  font-size: 10px;
  letter-spacing: .1em;

  text-transform: uppercase;

  color: #333;

  transition: color .25s ease;
}

.main-nav a:hover {
  color: #000;
}

.main-nav a.active::after {
  content: "";

  position: absolute;
  left: 0;
  bottom: 0;

  width: 100%;
  height: 1px;

  background: var(--red);
}


/* =========================================================
   WORK CATEGORY NAVIGATION
========================================================= */

.work-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;

  gap: 13px 30px;

  padding:
    30px
    var(--section-x)
    28px;

  border-bottom: 1px solid var(--light-gray);
}

.work-nav a {
  position: relative;

  padding-bottom: 8px;

  font-size: 10px;
  line-height: 1;

  letter-spacing: .1em;
  text-transform: uppercase;

  color: #888;

  transition:
    color .25s ease,
    opacity .25s ease;
}

.work-nav a:hover {
  color: #111;
}

.work-nav a.active {
  color: #111;
}

.work-nav a.active::after {
  content: "";

  position: absolute;

  left: 0;
  bottom: 0;

  width: 100%;
  height: 1px;

  background: var(--red);
}


/* =========================================================
   CATEGORY INTRO
========================================================= */

.category-intro {
  display: grid;

  grid-template-columns:
    .32fr
    1fr;

  gap: 8vw;

  padding:
    55px
    var(--section-x)
    100px;
}

.category-number {
  padding-top: 10px;

  font-size: 9px;
  line-height: 1.5;

  letter-spacing: .16em;
  text-transform: uppercase;

  color: #999;
}

.category-title {
  max-width: 1000px;

  font-size:
    clamp(58px, 9vw, 150px);

  font-weight: 300;

  line-height: .82;

  letter-spacing: -.065em;

  text-transform: uppercase;
}


/* =========================================================
   GENERAL WORK SECTION
========================================================= */

.work-section {
  position: relative;

  padding:
    30px
    var(--section-x)
    95px;

  border-bottom:
    1px solid
    var(--light-gray);
}

.work-section:last-of-type {
  border-bottom: 0;
}


/* =========================================================
   PROJECT HEADER
========================================================= */

.project-heading {
  display: grid;

  grid-template-columns:
    1fr
    .32fr;

  gap: 8vw;

  align-items: end;

  margin-bottom: 50px;
}

.project-title {
  max-width: 1100px;

  font-size:
    clamp(42px, 5vw, 82px);

  font-weight: 300;

  line-height: .92;

  letter-spacing: -.055em;

  text-transform: uppercase;
}

.project-meta {
  padding-bottom: 6px;

  font-size: 10px;
  line-height: 1.6;

  letter-spacing: .08em;
  text-transform: uppercase;

  color: #666;
}


/* =========================================================
   PROJECT MEDIA
========================================================= */

.project-media {
  width: 100%;

  overflow: hidden;
}

.project-media img {
  width: 100%;
  height: auto;

  object-fit: cover;

  transition:
    transform .6s ease,
    opacity .45s ease;
}

.project-media:hover img {
  transform: scale(1.006);
  opacity: .96;
}


/* =========================================================
   PROJECT BOTTOM
========================================================= */

.project-bottom {
  display: grid;

  grid-template-columns:
    .42fr
    1fr;

  gap: 8vw;

  margin-top: 40px;
}

.project-index {
  font-size: 9px;

  letter-spacing: .16em;

  text-transform: uppercase;

  color: #999;
}

.project-description {
  max-width: 680px;

  font-size: 14px;
  font-weight: 300;

  line-height: 1.7;

  color: #444;
}


/* =========================================================
   PROJECT GRID
   Useful for Digital Media / Illustration
========================================================= */

.project-grid {
  display: grid;

  grid-template-columns:
    repeat(2, minmax(0, 1fr));

  gap:
    90px
    clamp(30px, 5vw, 80px);
}

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

.project-card-image {
  position: relative;

  width: 100%;

  overflow: hidden;

  background: var(--very-light-gray);
}

.project-card-image img {
  width: 100%;
  height: auto;

  transition:
    transform .5s ease,
    opacity .4s ease;
}

.project-card:hover img {
  transform: scale(1.01);
  opacity: .94;
}

.project-card-info {
  display: flex;

  justify-content: space-between;
  align-items: flex-start;

  gap: 30px;

  margin-top: 18px;
}

.project-card-title {
  font-size: 16px;
  font-weight: 300;

  line-height: 1.2;

  letter-spacing: -.02em;

  text-transform: uppercase;
}

.project-card-meta {
  text-align: right;

  font-size: 9px;
  line-height: 1.5;

  letter-spacing: .1em;

  text-transform: uppercase;

  color: #888;
}


/* =========================================================
   VIDEO PROJECT
========================================================= */

.video-project {
  width: 100%;
}

.video-heading {
  display: grid;

  grid-template-columns:
    1fr
    .32fr;

  gap: 8vw;

  align-items: end;

  margin-bottom: 50px;
}

.video-title {
  font-size:
    clamp(42px, 5vw, 82px);

  font-weight: 300;

  line-height: .92;

  letter-spacing: -.055em;

  text-transform: uppercase;
}

.video-meta {
  padding-bottom: 6px;

  font-size: 10px;
  line-height: 1.6;

  letter-spacing: .08em;

  text-transform: uppercase;

  color: #666;
}

.video-frame {
  width: 100%;

  background: #000;

  overflow: hidden;
}

.project-video {
  width: 100%;
  height: auto;

  background: #000;
}

.video-bottom {
  display: grid;

  grid-template-columns:
    .42fr
    1fr;

  gap: 8vw;

  margin-top: 40px;
}

.video-index {
  font-size: 9px;

  letter-spacing: .16em;

  color: #999;
}

.video-description {
  max-width: 680px;

  font-size: 14px;
  font-weight: 300;

  line-height: 1.7;

  color: #444;
}


/* =========================================================
   OTHER WORKS — POSTER PROJECT
========================================================= */

.poster-project {
  margin-top: 130px;

  padding-top: 80px;

  border-top:
    1px solid
    var(--light-gray);
}


/* POSTER HEADER */

.poster-heading {
  display: grid;

  grid-template-columns:
    1fr
    1fr;

  gap: 8vw;

  align-items: start;

  margin-bottom: 60px;
}

.poster-title {
  font-size:
    clamp(42px, 5vw, 82px);

  font-weight: 300;

  line-height: .92;

  letter-spacing: -.055em;

  text-transform: uppercase;
}

.poster-meta {
  margin-top: 22px;

  font-size: 10px;
  line-height: 1.6;

  letter-spacing: .08em;

  text-transform: uppercase;

  color: #666;
}

.poster-description {
  max-width: 570px;

  padding-top: 6px;

  font-size: 14px;
  font-weight: 300;

  line-height: 1.7;

  color: #444;
}


/* THREE POSTERS */

.poster-grid {
  display: grid;

  grid-template-columns:
    repeat(3, minmax(0, 1fr));

  gap:
    clamp(18px, 2.5vw, 42px);

  align-items: start;
}

.poster-item {
  min-width: 0;
}

.poster-image {
  width: 100%;

  aspect-ratio: 3 / 4;

  display: flex;

  align-items: center;
  justify-content: center;

  overflow: hidden;

  background: var(--very-light-gray);
}

.poster-image img {
  width: 100%;
  height: 100%;

  object-fit: contain;

  transition:
    transform .45s ease,
    opacity .45s ease;
}

.poster-item:hover .poster-image img {
  transform: scale(.985);
  opacity: .92;
}


/* POSTER NUMBER */

.poster-caption {
  display: flex;

  align-items: center;

  gap: 16px;

  margin-top: 15px;

  font-size: 9px;

  letter-spacing: .16em;

  color: #777;
}

.poster-caption-line {
  width: 28px;
  height: 1px;

  background: #111;
}


/* =========================================================
   SIMPLE IMAGE PAIR
========================================================= */

.image-pair {
  display: grid;

  grid-template-columns:
    repeat(2, minmax(0, 1fr));

  gap:
    clamp(20px, 3vw, 50px);
}

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


/* =========================================================
   FOOTER
========================================================= */

.site-footer {
  display: flex;

  justify-content: space-between;
  align-items: flex-end;

  padding:
    90px
    var(--section-x)
    15px;

  font-size: 9px;

  line-height: 1.5;

  letter-spacing: .12em;

  text-transform: uppercase;

  color: #888;
}

.footer-year {
  display: flex;

  align-items: center;

  gap: 12px;
}

.footer-year::before {
  content: "";

  display: block;

  width: 28px;
  height: 1px;

  background: var(--red);
}


/* =========================================================
   INTERACTION
========================================================= */

::selection {
  background: #111;
  color: #fff;
}


/* =========================================================
   TABLET
========================================================= */

@media (max-width: 900px) {

  :root {
    --page-x: 28px;
  }

  .category-intro {
    grid-template-columns:
      .22fr
      1fr;

    gap: 5vw;
  }

  .project-grid {
    gap:
      70px
      30px;
  }

  .poster-heading {
    gap: 5vw;
  }

}


/* =========================================================
   MOBILE
========================================================= */

@media (max-width: 650px) {

  :root {
    --page-x: 18px;
    --section-x: 0;
  }


  /* HEADER */

  .page {
    padding:
      20px
      var(--page-x)
      25px;
  }

  .site-header {
    align-items: center;
  }

  .header-left {
    gap: 10px;
  }

  .site-logo {
    width: 28px;
  }

  .location {
    display: none;
  }

  .main-nav {
    gap: 16px;
  }

  .main-nav a {
    font-size: 8px;
  }


  /* CATEGORY NAV */

  .work-nav {
    gap:
      13px
      20px;

    padding:
      24px
      0
      22px;
  }

  .work-nav a {
    font-size: 8px;
  }


  /* CATEGORY INTRO */

  .category-intro {
    display: block;

    padding:
      40px
      0
      70px;
  }

  .category-number {
    margin-bottom: 25px;
  }

  .category-title {
    font-size:
      clamp(50px, 17vw, 90px);

    line-height: .84;
  }


  /* GENERAL SECTION */

  .work-section {
    padding:
      25px
      0
      70px;
  }


  /* PROJECT HEADER */

  .project-heading {
    display: block;

    margin-bottom: 32px;
  }

  .project-title {
    font-size:
      clamp(38px, 12vw, 58px);
  }

  .project-meta {
    margin-top: 22px;
  }


  /* PROJECT BOTTOM */

  .project-bottom {
    display: block;

    margin-top: 28px;
  }

  .project-description {
    margin-top: 24px;

    font-size: 13px;
  }


  /* PROJECT GRID */

  .project-grid {
    grid-template-columns: 1fr;

    gap: 65px;
  }

  .project-card-info {
    gap: 15px;
  }


  /* VIDEO */

  .video-heading {
    display: block;

    margin-bottom: 32px;
  }

  .video-title {
    font-size:
      clamp(38px, 12vw, 58px);
  }

  .video-meta {
    margin-top: 22px;
  }

  .video-bottom {
    display: block;

    margin-top: 28px;
  }

  .video-description {
    margin-top: 24px;

    font-size: 13px;
  }


  /* POSTERS */

  .poster-project {
    margin-top: 85px;

    padding-top: 55px;
  }

  .poster-heading {
    display: block;

    margin-bottom: 42px;
  }

  .poster-title {
    font-size:
      clamp(38px, 12vw, 58px);
  }

  .poster-description {
    margin-top: 30px;

    padding-top: 0;

    font-size: 13px;
  }

  .poster-grid {
    grid-template-columns: 1fr;

    gap: 45px;
  }

  .poster-image {
    aspect-ratio: 3 / 4;
  }


  /* IMAGE PAIR */

  .image-pair {
    grid-template-columns: 1fr;

    gap: 30px;
  }


  /* FOOTER */

  .site-footer {
    padding:
      70px
      0
      10px;
  }

}