/*
Theme Name: 未明録
Theme URI: https://example.com/mimeiroku
Author: 未明録編集部
Description: 深夜に一人で読む小さな文芸誌のための、ビルド不要のオリジナルテーマ。
Version: 1.1.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: mimeiroku
*/

:root {
  --color-background: #f2efe8;
  --color-surface: #e8e4db;
  --color-paper: #faf8f3;
  --color-text: #252b31;
  --color-muted: #70767a;
  --color-night: #101a24;
  --color-night-soft: #1d2b37;
  --color-blue: #718899;
  --color-light: #c6a46b;
  --color-border: rgba(37, 43, 49, .16);
  --font-serif: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  --font-sans: "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  --content-width: 1180px;
  --reading-width: 720px;
  --shadow: 0 18px 50px rgba(12, 22, 31, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--color-background); color: var(--color-text); font-family: var(--font-serif); font-size: 16px; line-height: 1.9; text-rendering: optimizeLegibility; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a:hover { color: #435f73; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--color-light); outline-offset: 4px; }
img { display: block; max-width: 100%; height: auto; }
button, input { font: inherit; }
.screen-reader-text { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.site-shell { width: min(calc(100% - 48px), var(--content-width)); margin-inline: auto; }
.eyebrow { margin: 0 0 8px; color: var(--color-muted); font-family: var(--font-sans); font-size: 11px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; }

.site-header { position: relative; z-index: 20; height: 82px; background: rgba(250, 248, 243, .96); border-bottom: 1px solid rgba(37,43,49,.08); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 30px; }
.site-branding { display: flex; align-items: baseline; gap: 22px; margin-right: auto; white-space: nowrap; }
.site-title { font-size: 30px; letter-spacing: .18em; line-height: 1; }
.site-tagline { color: #49515a; font-size: 13px; letter-spacing: .12em; }
.primary-nav ul { display: flex; align-items: center; gap: 30px; margin: 0; padding: 0; list-style: none; }
.primary-nav a { font-size: 13px; letter-spacing: .08em; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.icon-button { width: 42px; height: 42px; display: grid; place-items: center; padding: 0; border: 0; background: transparent; color: var(--color-text); cursor: pointer; }
.icon-button svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.menu-toggle { display: none; }
.search-panel { position: absolute; inset: 82px 0 auto; padding: 25px 0; background: var(--color-paper); border-top: 1px solid var(--color-border); box-shadow: var(--shadow); }
.search-panel[hidden] { display: none; }
.search-form { width: min(calc(100% - 48px), 680px); display: flex; margin: 0 auto; border-bottom: 1px solid var(--color-text); }
.search-field { flex: 1; min-width: 0; padding: 12px 0; border: 0; background: transparent; color: var(--color-text); }
.search-submit { padding: 12px; border: 0; background: transparent; cursor: pointer; }

.hero { min-height: 560px; position: relative; display: grid; align-items: center; overflow: hidden; background: var(--color-night); color: #f4f0e7; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,18,25,.96) 0%, rgba(13,23,32,.8) 36%, rgba(13,23,32,.15) 67%, rgba(13,23,32,.34) 100%), var(--hero-image, linear-gradient(135deg, #101a24, #2b3945)); background-size: cover; background-position: center; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 72%, rgba(9,17,24,.46)); pointer-events: none; }
.hero-content { position: relative; z-index: 1; width: min(48%, 520px); padding: 74px 0 80px; }
.hero-kicker { display: block; margin-bottom: 20px; color: #bfc9ce; font-family: var(--font-sans); font-size: 11px; letter-spacing: .24em; }
.hero-title { margin: 0 0 18px; font-size: clamp(34px, 4.2vw, 59px); font-weight: 400; letter-spacing: .22em; line-height: 1.35; }
.hero-copy { margin: 0 0 32px; color: #f0eadf; font-size: clamp(18px, 2vw, 25px); letter-spacing: .11em; }
.hero-rule { width: 38px; height: 1px; margin: 0 0 28px; background: var(--color-light); }
.hero-description { max-width: 460px; margin: 0; color: #d3d8d8; font-size: 14px; line-height: 2.15; }

.section { padding: 76px 0; }
.post-card-image { display: block; aspect-ratio: 4 / 3; overflow: hidden; margin-bottom: 18px; background: #d9d6cf; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 32px; }
.section-title { margin: 0; font-size: 22px; font-weight: 400; letter-spacing: .12em; }
.text-link { color: var(--color-muted); font-family: var(--font-sans); font-size: 12px; letter-spacing: .1em; }
.text-link::after { content: " →"; }
.post-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 28px; }
.post-card { min-width: 0; }
.post-card-image { aspect-ratio: 4 / 3; overflow: hidden; margin-bottom: 18px; background: #d9d6cf; }
.post-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.post-card-image > span { width: 100%; height: 100%; display: grid; place-items: center; background: linear-gradient(145deg, var(--color-night-soft), #43525d); color: rgba(255,255,255,.68); font-size: 22px; letter-spacing: .2em; }
.post-card:hover .post-card-image img { transform: scale(1.025); }
.post-card-category { display: block; margin-bottom: 8px; color: #5f7180; font-family: var(--font-sans); font-size: 11px; letter-spacing: .08em; }
.post-card-title { margin: 0 0 10px; font-size: 17px; font-weight: 400; line-height: 1.65; }
.post-card-excerpt { margin: 0 0 14px; color: var(--color-muted); font-size: 12px; line-height: 1.8; }
.post-date { color: var(--color-muted); font-family: var(--font-sans); font-size: 10px; letter-spacing: .06em; }
.post-card--placeholder .post-card-image { display: grid; place-items: center; background: linear-gradient(145deg, var(--color-night-soft), #43525d); color: rgba(255,255,255,.7); font-size: 28px; letter-spacing: .2em; }

.editorial-row { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; }
.popular-list { margin: 0; padding: 0; list-style: none; counter-reset: popular; }
.popular-list li { counter-increment: popular; display: grid; grid-template-columns: 32px 1fr; gap: 12px; padding: 16px 0; border-top: 1px solid var(--color-border); }
.popular-list li::before { content: counter(popular, decimal-leading-zero); color: var(--color-blue); font-family: Georgia, serif; font-size: 12px; }
.popular-list a { font-size: 14px; line-height: 1.65; }
.feature-card { position: relative; min-height: 390px; display: flex; align-items: end; overflow: hidden; background: var(--color-night-soft); color: #f5f1e8; }
.feature-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.feature-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(8,15,21,.9)); }
.feature-card-content { position: relative; z-index: 1; padding: 34px; }
.feature-card .eyebrow { color: #c9d0d3; }
.feature-card h3 { max-width: 560px; margin: 0 0 10px; font-size: 24px; font-weight: 400; line-height: 1.65; }
.feature-card p { max-width: 560px; margin: 0; color: #d2d5d5; font-size: 13px; }

.category-strip { background: var(--color-paper); }
.category-grid { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.category-item { min-height: 145px; padding: 26px; border-right: 1px solid var(--color-border); }
.category-item:last-child { border-right: 0; }
.category-index { color: var(--color-light); font-family: Georgia, serif; font-size: 12px; }
.category-item h3 { margin: 12px 0 6px; font-size: 16px; font-weight: 400; }
.category-item p { margin: 0; color: var(--color-muted); font-size: 11px; line-height: 1.7; }

.archive-header { padding: 78px 0 48px; border-bottom: 1px solid var(--color-border); }
.archive-title { margin: 0 0 10px; font-size: clamp(30px, 5vw, 52px); font-weight: 400; letter-spacing: .1em; }
.archive-description { max-width: 680px; color: var(--color-muted); }
.archive-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.pagination { margin-top: 54px; font-family: var(--font-sans); }
.pagination .nav-links { display: flex; flex-wrap: wrap; gap: 8px; }
.pagination a, .pagination span { min-width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--color-border); }
.pagination .current { background: var(--color-night); color: #fff; }

.single-header { padding: 76px 0 48px; text-align: center; }
.single-header-inner { max-width: 850px; margin: auto; }
.single-category { color: #587184; font-family: var(--font-sans); font-size: 12px; letter-spacing: .12em; }
.single-title { margin: 16px 0 24px; font-size: clamp(30px, 5vw, 50px); font-weight: 400; line-height: 1.55; letter-spacing: .04em; }
.single-meta { color: var(--color-muted); font-family: var(--font-sans); font-size: 11px; }
.single-visual { width: min(calc(100% - 48px), 1080px); max-height: 620px; margin: 0 auto 68px; object-fit: cover; }
.article-layout { width: min(calc(100% - 48px), 980px); display: grid; grid-template-columns: 1fr var(--reading-width) 1fr; margin-inline: auto; }
.article-content { grid-column: 2; font-size: 17px; line-height: 2.15; }
.article-content > *:first-child { margin-top: 0; }
.article-content h2 { margin: 2.8em 0 1em; font-size: 27px; font-weight: 400; line-height: 1.6; }
.article-content h3 { margin: 2.4em 0 .8em; font-size: 21px; font-weight: 400; }
.article-content a { color: #42677f; border-bottom: 1px solid currentColor; }
.article-content blockquote { margin: 2.4em 0; padding: 10px 0 10px 28px; border-left: 2px solid var(--color-light); color: #525960; }
.article-content img { margin: 2.6em auto; }
.article-tags { grid-column: 2; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--color-border); }
.article-tags a { padding: 5px 11px; border: 1px solid var(--color-border); color: var(--color-muted); font-family: var(--font-sans); font-size: 11px; }
.contact-form { position: relative; margin-top: 48px; padding-top: 40px; border-top: 1px solid var(--color-border); }
.form-field { margin: 0 0 28px; }
.form-field label { display: block; margin-bottom: 7px; font-size: 14px; }
.form-field label span { margin-left: 8px; color: #7c6545; font-family: var(--font-sans); font-size: 10px; }
.form-field input, .form-field textarea { width: 100%; padding: 13px 14px; border: 1px solid var(--color-border); border-radius: 0; background: var(--color-paper); color: var(--color-text); font-family: var(--font-sans); font-size: 16px; }
.form-field textarea { resize: vertical; line-height: 1.75; }
.form-agreement { display: flex; align-items: flex-start; gap: 8px; margin: 6px 0 26px; color: var(--color-muted); font-size: 13px; }
.form-agreement input { margin-top: 8px; }
.form-submit { min-width: 180px; padding: 14px 28px; border: 1px solid var(--color-night); background: var(--color-night); color: #f5f1e8; cursor: pointer; letter-spacing: .1em; transition: background .2s, color .2s; }
.form-submit:hover { background: transparent; color: var(--color-night); }
.form-notice { margin: 30px 0; padding: 15px 18px; border-left: 3px solid var(--color-blue); background: var(--color-paper); font-size: 14px; }
.form-notice--success { border-left-color: #657d6a; }
.form-notice--error { border-left-color: #9b7859; }
.contact-honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.post-navigation { width: min(calc(100% - 48px), 980px); margin: 72px auto; padding-top: 30px; border-top: 1px solid var(--color-border); }
.post-navigation .nav-links { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.post-navigation .nav-next { text-align: right; }
.post-navigation a { font-size: 13px; }

.empty-state { padding: 70px 0; text-align: center; }
.empty-state p { color: var(--color-muted); }
.site-footer { position: relative; padding: 56px 0 30px; overflow: hidden; background: var(--color-night); color: #dddcd7; }
.footer-inner { display: grid; grid-template-columns: 1fr 2fr; gap: 60px; }
.footer-logo { margin: 0 0 12px; font-size: 27px; font-weight: 400; letter-spacing: .2em; }
.footer-copy { max-width: 360px; margin: 0; color: #9fa8ad; font-size: 12px; }
.footer-menu ul { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 15px 30px; margin: 8px 0 0; padding: 0; list-style: none; }
.footer-menu a { color: #c7cbcb; font-size: 12px; }
.copyright { margin: 40px 0 0; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.1); color: #78848a; font-family: var(--font-sans); font-size: 10px; text-align: right; }

@media (max-width: 980px) {
  .site-header { height: 70px; }
  .site-tagline, .primary-nav { display: none; }
  .menu-toggle { display: grid; }
  .primary-nav.is-open { position: fixed; inset: 70px 0 0; display: block; padding: 42px 24px; background: rgba(16,26,36,.98); color: #f3efe7; }
  .primary-nav.is-open ul { align-items: stretch; flex-direction: column; gap: 0; }
  .primary-nav.is-open li { border-bottom: 1px solid rgba(255,255,255,.12); }
  .primary-nav.is-open a { display: block; padding: 18px 8px; }
  .search-panel { inset: 70px 0 auto; }
  .hero-content { width: min(66%, 520px); }
  .post-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .category-item { border-bottom: 1px solid var(--color-border); }
  .category-item:nth-child(2n) { border-right: 0; }
  .category-item:last-child { grid-column: 1 / -1; }
  .article-layout { grid-template-columns: 1fr minmax(0, var(--reading-width)) 1fr; }
}

@media (max-width: 680px) {
  .site-shell { width: min(calc(100% - 36px), var(--content-width)); }
  .site-title { font-size: 24px; }
  .hero { min-height: 590px; align-items: end; }
  .hero::before { background: linear-gradient(90deg, rgba(9,17,24,.88), rgba(9,17,24,.28)), linear-gradient(0deg, rgba(9,17,24,.9) 0%, transparent 65%), var(--hero-image, linear-gradient(135deg, #101a24, #2b3945)); background-size: cover; background-position: 62% center; }
  .hero-content { width: 100%; padding: 160px 0 48px; }
  .hero-title { font-size: 37px; }
  .hero-copy { font-size: 18px; }
  .hero-description { font-size: 13px; }
  .section { padding: 54px 0; }
  .post-grid, .archive-grid { grid-template-columns: 1fr; gap: 42px; }
  .editorial-row { grid-template-columns: 1fr; gap: 50px; }
  .feature-card { min-height: 340px; }
  .feature-card-content { padding: 25px; }
  .feature-card h3 { font-size: 20px; }
  .category-grid { grid-template-columns: 1fr; }
  .category-item, .category-item:nth-child(2n) { border-right: 0; }
  .category-item:last-child { grid-column: auto; }
  .single-header { padding-top: 54px; }
  .single-title { font-size: 30px; }
  .single-visual { width: 100%; margin-bottom: 48px; }
  .article-layout { width: min(calc(100% - 36px), 980px); display: block; }
  .article-content { font-size: 16px; }
  .article-tags { margin-top: 38px; }
  .post-navigation .nav-links { grid-template-columns: 1fr; }
  .post-navigation .nav-next { text-align: left; }
  .footer-inner { grid-template-columns: 1fr; gap: 25px; }
  .footer-menu ul { justify-content: flex-start; }
  .copyright { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}