/* =============================================================
   水翠 作品一覧
   PC（900px以上）：左に縦書きの作者名、右にバナー一覧
   スマホ（900px未満）：上に横書きの作者名、画面幅いっぱいのバナー
   ============================================================= */

:root {
  --yoai: #1b1d45;        /* 夜藍：表紙の空と縁取りの色 */
  --yoai-deep: #13153a;
  --suisui: #5fb3a3;      /* 水翠：川面の青緑 */
  --yuzuki: #ecc57c;      /* 夕月：夕焼けの金 */
  --washi: #f6f2ea;       /* 本文 */
  --kasumi: #aeadca;      /* 補足の文字 */

  --mincho: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", "Noto Serif CJK JP", serif;
  --gothic: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Meiryo", "Noto Sans JP", "Noto Sans CJK JP", sans-serif;
}

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

html {
  background: var(--yoai-deep);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, var(--yoai) 0%, var(--yoai-deep) 100%);
  color: var(--washi);
  font-family: var(--gothic);
  line-height: 1.7;
}

h1, h2, p, ul { margin: 0; padding: 0; }
ul { list-style: none; }
img { max-width: 100%; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- 作者名 ---------- */

.masthead-name {
  font-family: var(--mincho);
  font-weight: 800;
  color: var(--washi);
  line-height: 1;
  animation: ink-down 1.1s cubic-bezier(.3, .6, .2, 1) both;
}

.masthead-sub {
  font-family: var(--mincho);
  font-weight: 600;
  color: var(--yuzuki);
}

@keyframes ink-down {
  from { clip-path: inset(0 0 100% 0); }
  to   { clip-path: inset(0 0 0 0); }
}
@keyframes ink-right {
  from { clip-path: inset(0 100% 0 0); }
  to   { clip-path: inset(0 0 0 0); }
}

/* ---------- 区分（小説／マンガ） ---------- */

.catnav {
  display: flex;
  flex-wrap: wrap;
}

.catnav-link {
  display: inline-flex;
  align-items: baseline;
  gap: .5em;
  color: var(--washi);
  text-decoration: none;
  font-family: var(--mincho);
  font-weight: 600;
  border: 1px solid rgba(174, 173, 202, .5);
  border-radius: 999px;
  transition: border-color .2s ease, color .2s ease;
}

.catnav-link:hover,
.catnav-link:focus-visible {
  border-color: var(--yuzuki);
  color: var(--yuzuki);
}

.catnav-count { color: var(--kasumi); }
.catnav-link:hover .catnav-count { color: inherit; }

.group-head {
  display: flex;
  align-items: center;
  gap: 1em;
}

.group-head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(95, 179, 163, .6), rgba(95, 179, 163, 0));
}

.group-name {
  font-family: var(--mincho);
  font-weight: 800;
  color: var(--yuzuki);
  line-height: 1.3;
}

/* ---------- 作品カード（共通） ---------- */


.work-link {
  display: block;
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.work-banner {
  position: relative;
  line-height: 0;
}

.work-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2048 / 768;
  background: var(--yoai);
}

.work-badge {
  position: absolute;
  top: -.8em;
  left: 20px;
  padding: .2em .9em;
  border-radius: 3px;
  box-shadow: 0 4px 12px -4px rgba(4, 5, 24, .8);
  background: var(--yuzuki);
  color: var(--yoai);
  font-weight: 700;
  line-height: 1.4;
}

.work-series {
  font-family: var(--mincho);
  font-weight: 800;
  line-height: 1.35;
}

.work-detail {
  font-family: var(--mincho);
  font-weight: 600;
  color: var(--yuzuki);
  line-height: 1.5;
}

.work-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4em .8em;
  color: var(--kasumi);
}

.work-type {
  border: 1px solid var(--suisui);
  color: var(--suisui);
  padding: 0 .6em;
  border-radius: 3px;
  line-height: 1.6;
}

.work-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  background: var(--yuzuki);
  color: var(--yoai);
  font-weight: 700;
  border-radius: 999px;
  white-space: nowrap;
  transition: background-color .2s ease;
}

.work-cta-icon { width: 1em; height: 1em; }

.work-link:hover .work-cta,
.work-link:focus-visible .work-cta { background: var(--washi); }

.work-link:focus-visible {
  outline: 3px solid var(--yuzuki);
  outline-offset: 6px;
}

.notice {
  color: var(--kasumi);
  padding: 1em 0;
}

.footer {
  color: var(--kasumi);
}

/* =============================================================
   PC
   ============================================================= */
@media (min-width: 900px) {

  .site {
    display: grid;
    grid-template-columns: 200px 1fr;
    min-height: 100vh;
  }

  .masthead {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    padding-top: 72px;
    border-right: 1px solid rgba(95, 179, 163, .45);
  }

  /* 縦書き：ブロックが右から左へ並ぶ */
  .masthead-title {
    writing-mode: vertical-rl;
    align-self: flex-start;
  }

  .masthead-name {
    font-size: 96px;
    letter-spacing: .14em;
    margin-left: 18px;
  }

  .masthead-sub {
    padding-top: 118px;
    font-size: 19px;
    letter-spacing: .45em;
  }

  .content {
    padding: 72px clamp(40px, 5vw, 96px) 48px;
    max-width: 1280px;
  }

  .catnav {
    gap: 12px;
    margin-bottom: 56px;
  }

  .catnav-link {
    font-size: 16px;
    padding: 9px 22px;
  }
  .catnav-count { font-size: 13px; }

  .group + .group { margin-top: 88px; }
  .group-head { margin-bottom: 32px; }
  .group-name { font-size: 22px; letter-spacing: .18em; }

  .works {
    display: grid;
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .work { position: relative; }

  .work-banner img {
    border-radius: 4px;
    box-shadow: 0 24px 48px -24px rgba(4, 5, 24, .9);
    transition: filter .25s ease;
  }
  .work-link:hover .work-banner img { filter: brightness(1.07); }

  .work-badge { font-size: 15px; }

  /* PCではバナーの文字が十分読めるので、作品情報は読み上げ用にのみ残す */
  .work-info {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .footer {
    margin-top: 96px;
    font-size: 13px;
  }
}

/* 横幅の広い画面で、作品が2つ以上あるときは2列 */
@media (min-width: 1680px) {
  .has-many .content { max-width: none; }
  .has-many .works {
    grid-template-columns: repeat(2, 1fr);
    gap: 56px;
  }
}

/* =============================================================
   スマホ
   ============================================================= */
@media (max-width: 899.98px) {

  .masthead {
    padding: 28px 0 18px;
    margin: 0 20px;
    border-bottom: 1px solid rgba(95, 179, 163, .45);
  }

  .masthead-title {
    display: flex;
    align-items: baseline;
    gap: 14px;
  }

  .masthead-name {
    font-size: 44px;
    letter-spacing: .08em;
    animation-name: ink-right;
  }

  .masthead-sub {
    font-size: 15px;
    letter-spacing: .3em;
  }

  .content {
    padding: 28px 0 40px;
  }

  .catnav {
    gap: 10px;
    margin: 0 20px 32px;
  }

  .catnav-link {
    font-size: 15px;
    padding: 8px 18px;
  }
  .catnav-count { font-size: 12px; }

  .group + .group { margin-top: 56px; }

  .group-head {
    margin: 0 20px 20px;
  }
  .group-name { font-size: 19px; letter-spacing: .16em; }

  .works {
    display: flex;
    flex-direction: column;
    gap: 44px;
  }

  /* バナーは画面幅いっぱい */
  .work-badge { font-size: 13px; }

  .work-info {
    padding: 16px 20px 0;
  }

  .work-series { font-size: 21px; }
  .work-detail { font-size: 16px; }
  .work-meta   { font-size: 13px; margin-top: 8px; }
  .work-type   { font-size: 12px; }

  .work-cta {
    display: flex;
    width: 100%;
    min-height: 52px;
    margin-top: 16px;
    font-size: 16px;
  }

  .work-link:active .work-cta { background: var(--washi); }

  .work-link:focus-visible { outline-offset: -3px; }

  .footer {
    margin: 64px 20px 0;
    padding-top: 16px;
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .masthead-name { animation: none; }
  .work-cta,
  .work-banner img { transition: none; }
}