/* ============================================================
   010 Frame — モノクロ高コントラスト / sans-serif グリッドギャラリー
   配色とフォントはこの :root で差し替え可能
   ============================================================ */
:root {
  --accent: #e2402a;
  --color-bg: #ffffff;
  --color-surface: #f4f4f4;
  --color-text: #111111;
  --color-muted: #6b6b6b;
  --color-line: #e4e4e4;
  --content-width: 1120px;
  --header-height: 56px;
  --font-en: "Space Grotesk", system-ui, sans-serif;
  --font-ja: "Zen Kaku Gothic New", system-ui, sans-serif;
  --font-body: var(--font-ja);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #ff5a40;
    --color-bg: #0e0e0e;
    --color-surface: #1a1a1a;
    --color-text: #f2f2f2;
    --color-muted: #9a9a9a;
    --color-line: #2a2a2a;
  }
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  font-weight: 400;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

::selection {
  background: var(--accent);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* --- ヘッダー（上部固定） --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}
.site-header-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-height);
  padding: 0 1.25rem;
}
.site-name {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--color-text);
}
.site-name:hover {
  color: var(--accent);
  text-decoration: none;
}

/* --- drawer: SP は右からスライド、PC は display:contents でフラット化 --- */
.drawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(20rem, 80dvw);
  height: 100dvh;
  margin: 0;
  padding: 4rem 1.75rem 2rem;
  background: var(--color-bg);
  border: 0;
  border-left: 1px solid var(--color-line);
  transform: translateX(105%);
  transition: transform 220ms ease;
  overflow-y: auto;
}
.drawer:popover-open {
  transform: translateX(0);
}
@starting-style {
  .drawer:popover-open {
    transform: translateX(105%);
  }
}
.drawer::backdrop {
  background: rgba(0, 0, 0, 0.5);
}

.site-nav ul {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.site-nav a {
  font-family: var(--font-en);
  font-size: 1rem;
  color: var(--color-text);
}
.site-nav a:hover {
  color: var(--accent);
  text-decoration: none;
}
.site-nav a[aria-current="page"] {
  color: var(--accent);
}

.drawer-close {
  position: absolute;
  top: 0.85rem;
  right: 1.1rem;
  font-size: 1.25rem;
  background: transparent;
  border: 0;
  color: var(--color-text);
  cursor: pointer;
}
.nav-toggle {
  background: transparent;
  border: 0;
  color: var(--color-text);
  cursor: pointer;
  padding: 0.25rem;
}

@media (min-width: 768px) {
  .drawer {
    display: contents;
  }
  .site-nav ul {
    flex-direction: row;
    gap: 1.5rem;
  }
  .site-nav a {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-muted);
  }
  .site-nav a:hover,
  .site-nav a[aria-current="page"] {
    color: var(--color-text);
  }
  .drawer-close,
  .nav-toggle {
    display: none;
  }
}

/* --- メイン --- */
.site-main {
  flex: 1 0 auto;
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 3rem 1.25rem 5rem;
}

/* --- 見出し h1-h6 視覚差別化 --- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.35;
}
h1 {
  font-size: 2rem;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--color-text);
}
h2 {
  font-size: 1.5rem;
  margin: 2.2rem 0 0.9rem;
}
h3 {
  font-size: 1.2rem;
  margin: 1.8rem 0 0.7rem;
  padding-left: 0.6rem;
  border-left: 3px solid var(--accent);
}
h4 {
  font-size: 1.05rem;
  margin: 1.5rem 0 0.6rem;
  color: var(--color-muted);
}
h5 {
  font-size: 0.95rem;
  margin: 1.3rem 0 0.5rem;
  font-family: var(--font-en);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
h6 {
  font-size: 0.85rem;
  margin: 1.2rem 0 0.4rem;
  font-family: var(--font-en);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

/* --- hero / セクションタイトル / ページタイトル --- */
.hero {
  padding: 2.5rem 0 3rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--color-line);
}
.hero-title {
  margin: 0;
  padding: 0;
  border: 0;
  display: block;
  font-family: var(--font-en), var(--font-ja);
  font-weight: 700;
  font-size: clamp(2.8rem, 12vw, 5.5rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.section-title {
  font-family: var(--font-en), var(--font-ja);
  font-size: 1.1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 1.2rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-line);
}
.page-title {
  font-size: 1.9rem;
  margin: 0 0 2rem;
  padding: 0;
  border: 0;
}
.top-section {
  margin-top: 3.5rem;
}
.top-section-more {
  margin-top: 1.25rem;
  font-family: var(--font-en);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* --- 段落・強調（em/strong/mark をそれぞれ別装飾） --- */
p {
  margin: 0 0 1.2rem;
}
em {
  font-style: italic;
  color: var(--accent);
}
strong {
  font-weight: 700;
  border-bottom: 2px solid var(--accent);
}
mark {
  background: color-mix(in oklab, var(--accent) 20%, transparent);
  color: inherit;
  padding: 0 0.15em;
}

/* --- リスト・引用・表・コード（ベース装飾は素タグに） --- */
ul,
ol {
  padding-left: 1.4rem;
  margin: 0 0 1.2rem;
}
ul {
  list-style: disc;
}
ol {
  list-style: decimal;
}
li {
  margin: 0.3rem 0;
}
dl {
  margin: 0 0 1.2rem;
}
dt {
  font-weight: 700;
}
dd {
  margin: 0 0 0.6rem 1rem;
  color: var(--color-muted);
}
blockquote {
  margin: 0 0 1.2rem;
  padding: 0.5rem 1.2rem;
  border-left: 3px solid var(--accent);
  color: var(--color-muted);
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.2rem;
}
th,
td {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-line);
  text-align: left;
}
th {
  background: var(--color-surface);
  font-weight: 600;
}
hr {
  border: 0;
  border-top: 1px solid var(--color-line);
  margin: 2.5rem 0;
}
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background: var(--color-surface);
  padding: 0.1em 0.35em;
  border-radius: 2px;
}
pre {
  margin: 0 0 1.2rem;
  padding: 0.9rem 1.1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 2px;
  overflow: auto;
}
pre code {
  background: transparent;
  padding: 0;
}
img {
  max-width: 100%;
  height: auto;
}

/* ===== フォーム要素 ===== */
label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 0.3em;
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="email"],
input[type="search"],
input[type="url"],
input[type="tel"],
textarea,
select {
  -webkit-appearance: none;
  border: 1px solid var(--color-line);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.5rem;
  border-radius: 0;
}

textarea {
  width: 100%;
  min-height: 4rem;
  margin: 0.5rem 0;
  resize: vertical;
}

select {
  padding-right: 1.75rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b6b6b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
}

button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  -webkit-appearance: none;
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-line);
  padding: 0.5rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
  touch-action: manipulation;
  letter-spacing: 0.05em;
}

button:hover,
input[type="button"]:hover,
input[type="submit"]:hover,
input[type="reset"]:hover {
  border-color: var(--accent);
}

.form-actions {
  display: block;
  text-align: center;
}

/* --- ギャラリー一覧（010 専用ホバー版グリッド） --- */
.gallery-grid {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.gallery-grid.is-top {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.gallery-item {
  margin: 0;
}
.gallery-item a {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  color: inherit;
}
.gallery-item a:hover {
  text-decoration: none;
}
.gallery-thumb {
  display: block;
  aspect-ratio: 1 / 1;
}
.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.gallery-caption {
  position: absolute;
  inset: auto 0 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 1.5rem 0.85rem 0.7rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.78), transparent);
  color: #fff;
}
.gallery-caption-title {
  font-weight: 700;
  font-size: 0.95rem;
}
.gallery-caption-meta {
  font-family: var(--font-en);
  font-size: 0.75rem;
  opacity: 0.85;
}

/* hover 可能環境ではホバーで浮上、touch（hover 不可）では常時表示にフォールバック */
@media (hover: hover) {
  .gallery-caption {
    opacity: 0;
    transform: translateY(0.5rem);
    transition:
      opacity 200ms ease,
      transform 200ms ease;
  }
  .gallery-item a:hover .gallery-caption,
  .gallery-item a:focus-visible .gallery-caption {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- 作品詳細 --- */
.artwork-back {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
}
.artwork-back:hover {
  color: var(--color-text);
  text-decoration: none;
}
.artwork-figure {
  margin: 0 0 1.5rem;
  padding: 0.75rem;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  text-align: center;
}
.artwork-figure img {
  max-width: 100%;
  height: auto;
}
.artwork-title {
  font-size: 1.8rem;
  margin: 0 0 0.7rem;
  padding: 0;
  border: 0;
}
.artwork-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-en);
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
}
.media {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.6rem;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  color: var(--color-text);
}
.artwork-desc {
  max-width: 40rem;
  color: var(--color-muted);
}

/* 前後ナビ（差し色を使用） */
.artwork-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-line);
  font-family: var(--font-en);
  font-size: 0.9rem;
}
.artwork-nav-prev,
.artwork-nav-next {
  color: var(--accent);
}
.artwork-nav-next {
  margin-left: auto;
  text-align: right;
}
.artwork-nav .is-disabled {
  color: var(--color-muted);
  pointer-events: none;
}

/* --- about --- */
.about-section {
  margin-top: 2.5rem;
}
.about-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1.5rem;
  margin: 0;
}
.about-list dt {
  font-family: var(--font-en);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
}
.about-list dd {
  margin: 0;
  color: var(--color-text);
}

/* --- つぶやきタイムライン --- */
.timeline {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}
.timeline-item {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--color-line);
}
.timeline-item:first-child {
  padding-top: 0.5rem;
}
.timeline-item:last-child {
  border-bottom: 0;
}
.timeline-item.is-pinned {
  border-left: 2px solid var(--accent);
  padding: 1.75rem 1.25rem;
  background: var(--color-surface);
}
.timeline-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-en);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
}
.timeline-pin {
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  padding: 0.12rem 0.5rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
}
.timeline-time {
  color: var(--color-muted);
}
.timeline-body {
  line-height: 1.8;
}
.timeline-body p {
  margin: 0 0 0.75em;
  text-wrap: pretty;
}
.timeline-body p:last-child {
  margin-bottom: 0;
}
.timeline-media {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.5rem;
}
/* 画像が 1 枚のときは横いっぱいに引き伸ばさない */
.timeline-media:has(a:only-child) {
  grid-template-columns: minmax(0, 320px);
}
.timeline-media a {
  display: block;
}
.timeline-media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--color-line);
}

/* --- 一覧が空のとき --- */
.empty {
  padding: 2rem;
  border: 1px dashed var(--color-line);
  color: var(--color-muted);
  text-align: center;
}