/*
Theme Name: 買取ホムラコラム
Theme URI: https://kaitori-homura.com/
Author: Kaitori Homura
Description: 買取ホムラのトレカ買取コラム用テーマ。王道信頼型UI、白黒ベース、赤アクセント、四角基調。
Version: 1.0.1
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
Text Domain: kaitori-homura-column
*/

:root {
  --khc-ink: #252322;
  --khc-muted: #6b6662;
  --khc-line: #d8d5d1;
  --khc-soft: #f6f5f3;
  --khc-accent: #b61413;
  --khc-green: #22a451;
  --khc-max: 1180px;
  --khc-read: 760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--khc-ink);
  background: #fff;
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", Arial, sans-serif;
  line-height: 1.75;
  letter-spacing: 0;
}

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

img,
svg {
  max-width: 100%;
  height: auto;
}

button,
input,
textarea,
select {
  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;
}

.khc-topbar {
  border-bottom: 1px solid var(--khc-line);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 20;
}

.admin-bar .khc-topbar {
  top: 32px;
}

.khc-topbar-inner {
  max-width: var(--khc-max);
  margin: 0 auto;
  min-height: 72px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.khc-brand {
  font-weight: 900;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: 0;
}

.khc-brand small {
  display: block;
  font-size: 11px;
  color: var(--khc-muted);
  font-weight: 700;
}

.khc-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 18px;
  font-size: 14px;
  font-weight: 700;
  color: #3b3835;
}

.khc-nav li {
  margin: 0;
}

.khc-nav a {
  display: block;
  padding: 8px 0;
}

.khc-cta-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.khc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--khc-ink);
  background: var(--khc-ink);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
  cursor: pointer;
}

.khc-btn:hover,
.khc-btn:focus {
  opacity: .88;
}

.khc-btn-red {
  background: var(--khc-accent);
  border-color: var(--khc-accent);
}

.khc-btn-line {
  background: var(--khc-green);
  border-color: var(--khc-green);
}

.khc-section {
  max-width: var(--khc-max);
  margin: 0 auto;
  padding: 56px 24px;
}

.khc-section + .khc-section {
  border-top: 1px solid var(--khc-line);
}

.khc-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.khc-kicker {
  color: var(--khc-accent);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  border-left: 4px solid var(--khc-accent);
  padding-left: 8px;
  margin: 0 0 8px;
}

.khc-h1,
.khc-h2,
.khc-h3,
.entry-content h1,
.entry-content h2,
.entry-content h3 {
  line-height: 1.35;
  letter-spacing: 0;
  margin-top: 0;
}

.khc-h1 {
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 900;
  margin-bottom: 0;
}

.khc-h2 {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 900;
  margin-bottom: 0;
}

.khc-h3 {
  font-size: 19px;
  font-weight: 900;
  margin-bottom: 0;
}

.khc-lead {
  color: var(--khc-muted);
  font-weight: 700;
  margin: 0;
}

.khc-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
  gap: 28px;
  align-items: stretch;
}

.khc-feature-card,
.khc-article-card,
.khc-latest-item,
.khc-author-box,
.khc-toc,
.khc-cta-box,
.khc-empty {
  border: 1px solid var(--khc-line);
  background: #fff;
}

.khc-feature-card {
  display: grid;
  grid-template-rows: minmax(270px, 1fr) auto;
}

.khc-feature-body,
.khc-article-body {
  padding: 20px;
}

.khc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-bottom: 12px;
  color: var(--khc-muted);
  font-size: 12px;
  font-weight: 800;
}

.khc-label {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  background: var(--khc-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 900;
}

.khc-photo {
  min-height: 220px;
  border-bottom: 1px solid var(--khc-line);
  background:
    linear-gradient(115deg, rgba(37, 35, 34, .08), rgba(37, 35, 34, .55)),
    repeating-linear-gradient(90deg, #e8e5df 0 18px, #d2cec8 18px 36px);
  position: relative;
  overflow: hidden;
}

.khc-photo img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
  display: block;
}

.khc-photo-placeholder::before,
.khc-photo-placeholder::after {
  content: "";
  position: absolute;
  background: #fff;
  border: 1px solid rgba(37, 35, 34, .35);
  box-shadow: 0 14px 30px rgba(0, 0, 0, .18);
}

.khc-photo-placeholder::before {
  width: 118px;
  height: 164px;
  left: 12%;
  top: 20%;
  transform: rotate(-8deg);
}

.khc-photo-placeholder::after {
  width: 126px;
  height: 178px;
  right: 12%;
  top: 14%;
  transform: rotate(7deg);
}

.khc-photo span {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 1;
  background: rgba(255, 255, 255, .92);
  padding: 6px 8px;
  font-size: 12px;
  font-weight: 900;
}

.khc-side-stack {
  display: grid;
  gap: 14px;
}

.khc-mini-card {
  border: 1px solid var(--khc-line);
  display: grid;
  grid-template-columns: 130px 1fr;
  background: #fff;
}

.khc-mini-card .khc-photo {
  min-height: 134px;
  border-bottom: 0;
  border-right: 1px solid var(--khc-line);
}

.khc-mini-card .khc-photo-placeholder::before {
  width: 52px;
  height: 74px;
  left: 18%;
  top: 24%;
}

.khc-mini-card .khc-photo-placeholder::after {
  width: 54px;
  height: 78px;
  right: 14%;
  top: 18%;
}

.khc-mini-body {
  padding: 14px;
}

.khc-latest-list {
  display: grid;
  gap: 0;
  border: 1px solid var(--khc-line);
}

.khc-latest-item {
  border: 0;
  border-bottom: 1px solid var(--khc-line);
  padding: 16px;
  display: grid;
  grid-template-columns: 94px 1fr;
  gap: 14px;
  align-items: center;
}

.khc-latest-item:last-child {
  border-bottom: 0;
}

.khc-thumb {
  aspect-ratio: 4 / 3;
  background: #e7e3dd;
  border: 1px solid var(--khc-line);
  position: relative;
  overflow: hidden;
}

.khc-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.khc-thumb-placeholder::after {
  content: "";
  position: absolute;
  width: 42px;
  height: 58px;
  border: 1px solid rgba(37, 35, 34, .35);
  background: #fff;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(6deg);
}

.khc-latest-item .khc-h3 {
  font-size: 15px;
}

.khc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.khc-tabs a {
  border: 1px solid var(--khc-line);
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 900;
  background: #fff;
}

.khc-tabs a.is-active {
  border-color: var(--khc-accent);
  color: var(--khc-accent);
}

.khc-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.khc-article-card .khc-photo {
  min-height: 170px;
}

.khc-pager,
.navigation.pagination {
  margin-top: 28px;
  display: flex;
  justify-content: center;
  gap: 8px;
}

.khc-pager .page-numbers,
.navigation.pagination .page-numbers {
  border: 1px solid var(--khc-line);
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 13px;
}

.khc-pager .current,
.navigation.pagination .current {
  background: var(--khc-ink);
  color: #fff;
  border-color: var(--khc-ink);
}

.khc-article-shell {
  display: grid;
  grid-template-columns: minmax(0, var(--khc-read)) 300px;
  gap: 38px;
  align-items: start;
  justify-content: center;
}

.khc-article-main .khc-h1 {
  margin: 10px 0 16px;
}

.khc-article-main > .khc-photo {
  min-height: 360px;
  margin: 24px 0;
  border: 1px solid var(--khc-line);
}

.entry-content {
  font-size: 17px;
  line-height: 2;
}

.entry-content h2 {
  font-size: 27px;
  margin: 42px 0 14px;
  padding-top: 18px;
  border-top: 2px solid var(--khc-ink);
}

.entry-content h3 {
  font-size: 21px;
  margin: 28px 0 10px;
  border-left: 4px solid var(--khc-accent);
  padding-left: 10px;
}

.entry-content p,
.entry-content ul,
.entry-content ol,
.entry-content table,
.entry-content figure {
  margin-top: 0;
  margin-bottom: 20px;
}

.entry-content a {
  color: var(--khc-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.entry-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.entry-content th,
.entry-content td {
  border: 1px solid var(--khc-line);
  padding: 11px;
  text-align: left;
}

.entry-content th {
  background: var(--khc-soft);
}

.entry-content .wp-block-image img {
  border: 1px solid var(--khc-line);
}

.entry-content .wp-block-quote {
  border-left: 4px solid var(--khc-accent);
  margin-left: 0;
  padding-left: 16px;
  color: var(--khc-muted);
  font-weight: 700;
}

.khc-toc {
  padding: 18px;
  position: sticky;
  top: 96px;
}

.admin-bar .khc-toc {
  top: 128px;
}

.khc-toc strong {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
}

.khc-toc ol {
  margin: 0;
  padding-left: 20px;
  color: var(--khc-muted);
  font-size: 14px;
  font-weight: 700;
}

.khc-toc li + li {
  margin-top: 6px;
}

.khc-like {
  border: 1px solid var(--khc-line);
  background: #fff;
  min-height: 48px;
  padding: 0 18px;
  font-weight: 900;
  font-size: 15px;
}

.khc-author-box,
.khc-cta-box {
  padding: 20px;
  margin-top: 28px;
}

.khc-author-box {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 16px;
  align-items: center;
}

.khc-avatar {
  width: 72px;
  height: 72px;
  border: 1px solid var(--khc-line);
  background: var(--khc-soft);
}

.khc-related {
  margin-top: 36px;
}

.khc-related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.khc-cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-left: 4px solid var(--khc-accent);
}

.khc-empty {
  padding: 28px;
}

.khc-footer {
  border-top: 1px solid var(--khc-line);
  background: var(--khc-ink);
  color: #fff;
  padding: 36px 24px;
}

.khc-footer-inner {
  max-width: var(--khc-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
}

.khc-footer-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

@media (max-width: 980px) {
  .khc-topbar-inner {
    flex-wrap: wrap;
    padding: 14px 18px;
  }

  .khc-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
  }

  .khc-hero,
  .khc-article-shell {
    grid-template-columns: 1fr;
  }

  .khc-grid,
  .khc-related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .khc-toc {
    position: static;
  }
}

@media (max-width: 782px) {
  .admin-bar .khc-topbar {
    top: 46px;
  }
}

@media (max-width: 640px) {
  .khc-section {
    padding: 40px 18px;
  }

  .khc-section-head {
    display: block;
  }

  .khc-section-head .khc-lead {
    margin-top: 12px;
  }

  .khc-cta-row {
    width: 100%;
  }

  .khc-btn {
    flex: 1;
    padding: 0 10px;
    font-size: 12px;
  }

  .khc-mini-card,
  .khc-latest-item {
    grid-template-columns: 96px 1fr;
  }

  .khc-grid,
  .khc-related-grid {
    grid-template-columns: 1fr;
  }

  .khc-article-main > .khc-photo {
    min-height: 260px;
  }

  .entry-content {
    font-size: 16px;
  }

  .khc-cta-box {
    display: block;
  }

  .khc-cta-box .khc-cta-row {
    margin-top: 16px;
  }
}