/*
Theme Name: 投資ブログ Draft
Theme URI: https://example.com/
Author: Site Owner
Description: 数字と読みものを主役にした、個人投資ブログ向けのWordPressテーマです。
Version: 0.1.0
Requires at least: 6.4
Tested up to: 6.8
Requires PHP: 7.4
Text Domain: investment-blog-draft
*/

:root {
  --ink: #0a204c;
  --ink-2: #19345f;
  --blue: #1654b8;
  --blue-soft: #eaf1fb;
  --orange: #dc4a25;
  --text: #25324a;
  --muted: #69758a;
  --line: #dce3ec;
  --surface: #ffffff;
  --wash: #f6f8fb;
  --serif: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  --max-width: 1240px;
  --radius: 8px;
  --shadow: 0 14px 40px rgba(9, 32, 76, 0.06);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--surface);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img, svg, canvas { display: block; max-width: 100%; height: auto; }
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--blue); }
button, input { font: inherit; }
.screen-reader-text {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.screen-reader-text:focus { width: auto; height: auto; margin: 0; overflow: visible; clip: auto; white-space: normal; }
.site-shell { min-height: 100vh; display: flex; flex-direction: column; }
.site-main { flex: 1; }
.container { width: min(calc(100% - 48px), var(--max-width)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 999; background: var(--ink); color: #fff; padding: 8px 14px; }
.skip-link:focus { top: 12px; }
.eyebrow, .card-kicker { margin: 0; color: var(--blue); font-size: 0.75rem; font-weight: 700; letter-spacing: .08em; }
.demo-label { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: .72rem; }
.demo-label::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #95a4b8; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.section-title { margin: 0; color: var(--ink); font: 500 clamp(1.6rem, 2.4vw, 2.15rem)/1.3 var(--serif); letter-spacing: .02em; }
.section-note { margin: 0; color: var(--muted); font-size: .82rem; }
.text-link { display: inline-flex; gap: 8px; align-items: center; font-size: .86rem; font-weight: 700; text-decoration: none; }
.text-link::after { content: "→"; }

/* Header */
.site-header { position: relative; z-index: 20; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 78px; display: grid; grid-template-columns: minmax(190px, 1fr) auto minmax(230px, .9fr); align-items: center; gap: 28px; }
.site-branding { min-width: 0; }
.custom-logo-link img { max-width: 180px; max-height: 46px; width: auto; }
.site-title { display: block; width: max-content; max-width: 100%; color: var(--ink); font: 600 1.22rem/1.25 var(--serif); letter-spacing: .08em; text-decoration: none; }
.site-description { margin: 3px 0 0; color: var(--muted); font-size: .66rem; letter-spacing: .1em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(16px, 2.2vw, 32px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { color: var(--ink); font-size: .84rem; font-weight: 700; text-decoration: none; white-space: nowrap; }
.header-search .search-form { position: relative; }
.search-field { width: 100%; min-height: 42px; padding: 9px 44px 9px 14px; border: 1px solid var(--line); border-radius: 5px; color: var(--text); background: #fff; }
.search-field:focus { outline: 3px solid rgba(22,84,184,.18); border-color: var(--blue); }
.search-submit { position: absolute; inset: 3px 3px 3px auto; width: 38px; padding: 0; border: 0; border-radius: 4px; color: var(--ink); background: transparent; cursor: pointer; }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 9px; border: 1px solid var(--line); border-radius: 4px; background: #fff; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--ink); }

/* Hero and yield chart */
.hero { background: linear-gradient(135deg, #fff 35%, #f7f9fc); border-bottom: 1px solid #eef1f5; }
.hero-inner { min-height: 390px; display: grid; grid-template-columns: minmax(360px, 1fr) minmax(480px, .9fr); gap: clamp(30px, 3.5vw, 48px); align-items: center; padding-block: 36px; }
.hero-copy { padding-left: 8px; }
.hero-profile { display: grid; grid-template-columns: 116px minmax(0, 1fr); gap: 22px; align-items: center; }
.hero-avatar { width: 116px; height: 116px; margin: 0; overflow: hidden; border: 1px solid #d8b22b; border-radius: 50%; background: #edbe26; box-shadow: 0 8px 24px rgba(9,32,76,.08); }
.hero-avatar img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.28); transform-origin: 38% 54%; }
.hero-title { max-width: 560px; margin: 0 0 2px; color: var(--text); font: 500 clamp(.92rem, 1.2vw, 1.02rem)/1.8 var(--sans); letter-spacing: 0; }
.hero-lead { max-width: 470px; margin: 0; color: #3e4a5f; font-size: clamp(.92rem, 1.2vw, 1.02rem); }
.yield-panel { width: 100%; max-width: 560px; justify-self: end; padding: 12px 16px 8px; border: 1px solid #cfd8e5; border-radius: var(--radius); background: rgba(255,255,255,.92); box-shadow: var(--shadow); }
.yield-metrics { display: grid; grid-template-columns: 1fr 1fr auto; align-items: end; gap: 16px; margin-bottom: 3px; }
.yield-metric { display: flex; gap: 10px; align-items: baseline; color: var(--ink); font-family: var(--serif); white-space: nowrap; }
.yield-metric--jp { color: var(--orange); }
.yield-name { font-size: .96rem; }
.yield-value { font-size: clamp(1.55rem, 2.4vw, 2.15rem); line-height: 1; }
.yield-unit { font-size: .88rem; }
.chart-range { color: var(--muted); font-size: .72rem; }
.yield-chart { position: relative; }
.yield-chart svg { width: 100%; aspect-ratio: 2.55 / 1; overflow: visible; }
.chart-grid { stroke: #dbe2eb; stroke-width: 1; stroke-dasharray: 4 4; }
.chart-axis { stroke: #9caabc; stroke-width: 1; }
.chart-us { fill: none; stroke: var(--blue); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.chart-jp { fill: none; stroke: var(--orange); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.chart-dot-us { fill: var(--blue); }
.chart-dot-jp { fill: var(--orange); }
.chart-text { fill: #536177; font: 12px var(--sans); }
.chart-axis-title { fill: var(--ink); font: 600 12px var(--sans); }
.chart-legend { display: flex; justify-content: center; gap: 24px; margin: -2px 0 0; color: var(--text); font-size: .74rem; }
.legend-line { display: inline-block; width: 18px; height: 2px; margin-right: 7px; vertical-align: middle; background: var(--blue); }
.legend-line--jp { background: var(--orange); }
.chart-update { margin: 2px 0 0; color: var(--muted); font-size: .69rem; text-align: right; }

/* Home sections */
.home-section { padding-block: 48px; }
.home-section + .home-section { border-top: 1px solid #edf0f4; }
.featured-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.article-card { min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: border-color .2s, transform .2s, box-shadow .2s; }
.article-card:hover { transform: translateY(-2px); border-color: #b7c5d8; box-shadow: var(--shadow); }
.article-card__visual { min-height: 150px; padding: 16px 16px 8px; background: #fbfcfe; border-bottom: 1px solid #edf1f6; }
.article-card__visual svg { width: 100%; height: 128px; }
.mini-grid { stroke: #e4e9f0; stroke-width: 1; }
.mini-line { fill: none; stroke: var(--blue); stroke-width: 2.5; }
.mini-line--light { stroke: #7598d0; }
.mini-bar { fill: var(--ink); }
.mini-bar--soft { fill: #91a8c8; }
.mini-donut { fill: none; stroke: #dce4ef; stroke-width: 15; }
.mini-donut-value { fill: none; stroke: var(--blue); stroke-width: 15; stroke-dasharray: 52 100; transform: rotate(-90deg); transform-origin: center; }
.article-card__body { padding: 18px 18px 16px; }
.article-card__title { margin: 6px 0 9px; color: var(--ink); font: 600 1.12rem/1.62 var(--serif); }
.article-card__title a { text-decoration: none; }
.article-card__excerpt { margin: 0; color: #536077; font-size: .82rem; line-height: 1.75; }
.article-card__meta { display: flex; justify-content: space-between; gap: 12px; margin-top: 14px; color: #8690a1; font-size: .72rem; }
.article-card__tags { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.latest-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.latest-grid .article-card { display: grid; grid-template-columns: 42% 58%; min-height: 182px; }
.latest-grid .article-card__visual { min-height: 0; padding: 12px; border: 0; border-right: 1px solid #edf1f6; }
.latest-grid .article-card__visual svg { height: 100%; min-height: 100px; }
.latest-grid .article-card__body { padding: 15px 16px 13px; }
.latest-grid .article-card__title { font-size: .96rem; line-height: 1.55; }
.latest-grid .article-card__excerpt { display: -webkit-box; overflow: hidden; -webkit-line-clamp: 2; -webkit-box-orient: vertical; font-size: .74rem; }
.latest-grid .article-card__meta { margin-top: 8px; }
.more-row { display: flex; justify-content: center; margin-top: 24px; }
.outline-button { min-width: 330px; padding: 9px 18px; border: 1px solid var(--ink); border-radius: 4px; color: var(--ink); font-size: .86rem; font-weight: 700; text-align: center; text-decoration: none; }
.outline-button:hover { color: #fff; background: var(--ink); }
.category-stack { display: grid; gap: 0; }
.category-row { display: grid; grid-template-columns: 135px 1fr; gap: 24px; padding: 18px 0; border-top: 1px solid var(--line); }
.category-row:last-child { border-bottom: 1px solid var(--line); }
.category-row__title { margin: 4px 0 0; color: var(--ink); font: 500 1.6rem/1.35 var(--serif); }
.category-row__posts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.compact-post { min-width: 0; display: grid; grid-template-columns: 155px 1fr; gap: 18px; align-items: center; padding: 12px; border: 1px solid #e3e8ef; border-radius: 6px; }
.compact-post__visual { min-height: 94px; background: var(--wash); }
.compact-post__visual svg { width: 100%; height: 94px; }
.compact-post__title { margin: 5px 0 7px; color: var(--ink); font: 600 .96rem/1.55 var(--serif); }
.compact-post__title a { text-decoration: none; }
.compact-post__meta { color: #8c95a4; font-size: .7rem; }
.social-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.social-card { padding: 18px; border: 1px solid var(--line); border-radius: 6px; }
.social-card__top { display: flex; align-items: center; gap: 10px; }
.social-card__icon { display: grid; place-items: center; width: 31px; height: 31px; border-radius: 50%; color: #fff; background: #050505; font-size: .82rem; }
.social-card__name { color: var(--blue); font-size: .76rem; font-weight: 700; }
.social-card time { margin-left: auto; color: #8b94a3; font-size: .68rem; }
.social-card p { margin: 13px 0 10px; font-size: .78rem; line-height: 1.75; }
.profile-strip { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; align-items: center; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--wash); }
.profile-strip h2 { margin: 0 0 8px; color: var(--ink); font: 500 1.45rem var(--serif); }
.profile-strip p { margin: 0; color: #5c687b; font-size: .86rem; }
.profile-links { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 10px 18px; }

/* Archive, single, pages */
.page-header { padding: 52px 0 30px; border-bottom: 1px solid var(--line); background: var(--wash); }
.page-title { margin: 0; color: var(--ink); font: 500 clamp(2rem, 4vw, 3rem)/1.3 var(--serif); }
.page-description { max-width: 720px; margin: 10px 0 0; color: var(--muted); }
.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 58px; padding-block: 48px 72px; }
.archive-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.sidebar { padding-left: 24px; border-left: 1px solid var(--line); }
.widget-title { margin: 0 0 14px; color: var(--ink); font: 600 1.05rem var(--serif); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a, .post-tags a { padding: 3px 8px; border: 1px solid var(--line); border-radius: 3px; font-size: .72rem; text-decoration: none; }
.single-wrap { max-width: 820px; padding-block: 55px 80px; }
.post-header { margin-bottom: 34px; }
.post-title { margin: 8px 0 14px; color: var(--ink); font: 600 clamp(2rem, 4vw, 3.15rem)/1.5 var(--serif); }
.post-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; color: var(--muted); font-size: .8rem; }
.post-content { font-size: 1.02rem; line-height: 2; }
.post-content > * { max-width: 100%; }
.post-content h2 { margin: 2.5em 0 .8em; padding-bottom: .45em; border-bottom: 1px solid var(--line); color: var(--ink); font: 600 1.75rem/1.5 var(--serif); }
.post-content h3 { margin: 2em 0 .6em; color: var(--ink); font: 600 1.3rem/1.5 var(--serif); }
.post-content a { color: var(--blue); }
.post-content blockquote { margin: 2em 0; padding: 18px 24px; border-left: 3px solid var(--blue); background: var(--wash); }
.post-content table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
.post-content th, .post-content td { padding: 10px; border: 1px solid var(--line); }
.post-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 34px; }
.pagination { margin-top: 30px; }
.nav-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 6px; }
.page-numbers { min-width: 38px; padding: 5px 9px; border: 1px solid var(--line); text-align: center; text-decoration: none; }
.page-numbers.current { color: #fff; background: var(--ink); border-color: var(--ink); }
.empty-state { padding: 40px; border: 1px solid var(--line); background: var(--wash); text-align: center; }
.error-404 { max-width: 680px; margin: 0 auto; padding-block: 90px; text-align: center; }
.error-code { margin: 0; color: #dfe5ee; font: 700 7rem/1 var(--serif); }

/* Footer */
.site-footer { margin-top: auto; color: #d8e3f3; background: var(--ink); }
.footer-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; padding-block: 34px; }
.footer-brand { color: #fff; font: 500 1.05rem var(--serif); }
.footer-note { max-width: 530px; margin: 8px 0 0; color: #b8c6da; font-size: .72rem; line-height: 1.8; }
.footer-nav ul { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 10px 24px; margin: 0; padding: 0; list-style: none; }
.footer-nav a { color: #fff; font-size: .75rem; text-decoration: none; }
.footer-bottom { padding: 10px 0; border-top: 1px solid rgba(255,255,255,.14); color: #9fb0c9; font-size: .68rem; text-align: center; }

@media (max-width: 1050px) {
  .header-inner { grid-template-columns: 1fr auto; gap: 12px; }
  .menu-toggle { display: block; }
  .primary-nav { display: none; grid-column: 1 / -1; border-top: 1px solid var(--line); }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { align-items: stretch; flex-direction: column; gap: 0; padding: 10px 0; }
  .primary-nav a { display: block; padding: 9px 0; }
  .header-search { display: none; grid-column: 1 / -1; padding-bottom: 14px; }
  .header-search.is-open { display: block; }
  .hero-inner { grid-template-columns: .85fr 1.15fr; gap: 30px; }
  .featured-grid, .latest-grid { grid-template-columns: repeat(2, 1fr); }
  .featured-grid .article-card:last-child { grid-column: 1 / -1; display: grid; grid-template-columns: 38% 62%; }
  .category-row { grid-template-columns: 105px 1fr; }
  .category-row__posts { grid-template-columns: 1fr; }
  .compact-post { grid-template-columns: 180px 1fr; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 32px), var(--max-width)); }
  .header-inner { min-height: 68px; }
  .site-description { display: none; }
  .hero-inner { min-height: 0; grid-template-columns: 1fr; gap: 26px; padding-block: 34px; }
  .yield-panel { max-width: none; padding: 12px 10px 9px; }
  .yield-metrics { grid-template-columns: 1fr 1fr; gap: 8px; }
  .yield-metric { display: block; }
  .yield-name { display: block; font-size: .73rem; }
  .yield-value { font-size: clamp(1.45rem, 6vw, 1.75rem); }
  .chart-range { display: none; }
  .yield-chart svg { aspect-ratio: 2.45 / 1; }
  .chart-text, .chart-axis-title { font-size: 15px; }
  .chart-legend { gap: 14px; font-size: .67rem; }
  .home-section { padding-block: 38px; }
  .section-head { align-items: start; flex-direction: column; gap: 7px; margin-bottom: 17px; }
  .featured-grid, .latest-grid, .social-grid { grid-template-columns: 1fr; }
  .featured-grid .article-card:last-child, .latest-grid .article-card { display: block; grid-column: auto; }
  .latest-grid .article-card__visual { min-height: 130px; border-right: 0; border-bottom: 1px solid #edf1f6; }
  .latest-grid .article-card__visual svg { height: 118px; }
  .category-row { grid-template-columns: 1fr; gap: 12px; }
  .category-row__posts { grid-template-columns: 1fr; }
  .compact-post { grid-template-columns: 38% 1fr; gap: 11px; padding: 9px; }
  .compact-post__title { font-size: .86rem; }
  .outline-button { width: 100%; min-width: 0; }
  .profile-strip { grid-template-columns: 1fr; padding: 22px; }
  .profile-links { justify-content: flex-start; }
  .content-layout { grid-template-columns: 1fr; gap: 38px; padding-block: 36px 60px; }
  .archive-grid { grid-template-columns: 1fr; }
  .sidebar { padding: 28px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .footer-nav ul { justify-content: flex-start; }
}

@media (max-width: 390px) {
  .container { width: calc(100% - 26px); }
  .site-title { font-size: 1.05rem; }
  .hero-copy { padding-left: 0; }
  .hero-profile { grid-template-columns: 88px minmax(0, 1fr); gap: 14px; }
  .hero-avatar { width: 88px; height: 88px; }
  .yield-panel { margin-inline: -3px; }
  .compact-post { grid-template-columns: 1fr; }
  .compact-post__visual { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}