/*
Theme Name: Neural Athlete
Theme URI: https://neural-athlete.com/
Author: 株式会社ニューラルアスリート
Description: 株式会社ニューラルアスリート公式ホームページ用の独自テーマ。プラグイン不要。スマホ表示を最優先に設計。
Version: 1.5.0
Requires at least: 6.0
Requires PHP: 7.4
License: Proprietary
Text Domain: neural-athlete
*/

:root {
  --c-primary: #1f4e8c;
  --c-primary-dark: #0f2a47;
  --c-accent: #e8f1fb;
  --c-text: #222a33;
  --c-muted: #667085;
  --c-line: #dfe5ec;
  --c-bg: #f5f7fa;
  --c-white: #fff;
  --c-new: #e5484d;
  --wrap: 1080px;
  --radius: 10px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--c-text);
  background: var(--c-white);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  word-break: break-word;
  overflow-wrap: anywhere;
}

img { max-width: 100%; height: auto; vertical-align: middle; }
iframe, video { max-width: 100%; }
a { color: var(--c-primary); }
a:hover { text-decoration: none; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }

.skip {
  position: absolute; left: -999px; top: 0; background: #000; color: #fff; padding: 8px 12px; z-index: 100;
}
.skip:focus { left: 0; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--c-white);
  border-bottom: 1px solid var(--c-line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 60px; gap: 12px;
}
.brand { display: block; line-height: 1; text-decoration: none; color: var(--c-primary-dark); font-weight: 700; }
.brand img { height: 40px; width: auto; max-width: 62vw; object-fit: contain; }

.nav-toggle {
  appearance: none; border: 1px solid var(--c-line); background: var(--c-white);
  color: var(--c-primary-dark); font: inherit; font-size: 14px; font-weight: 700;
  padding: 8px 14px; border-radius: 999px; cursor: pointer; min-height: 44px;
}
.nav-toggle[aria-expanded="true"] { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

.site-nav {
  display: none;
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--c-white); border-bottom: 1px solid var(--c-line);
  max-height: calc(100vh - 60px); overflow-y: auto;
  box-shadow: 0 10px 20px rgba(15, 42, 71, .08);
}
.site-nav.is-open { display: block; }
.site-nav ul { list-style: none; margin: 0; padding: 0; }
.site-nav .menu > li { border-top: 1px solid var(--c-line); }
.site-nav a, .site-nav .menu-label {
  display: block; padding: 14px 20px; color: var(--c-primary-dark);
  font-weight: 700; text-decoration: none; min-height: 48px;
}
.site-nav a:hover { background: var(--c-accent); }
.site-nav .menu-label { color: var(--c-muted); font-size: 13px; padding-bottom: 4px; }
.site-nav .sub a { font-weight: 500; padding-left: 36px; }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .site-nav {
    display: block; position: static; box-shadow: none; border: 0;
    max-height: none; overflow: visible; background: transparent;
  }
  .site-nav .menu { display: flex; align-items: center; gap: 2px; }
  .site-nav .menu > li { border: 0; position: relative; }
  .site-nav a, .site-nav .menu-label {
    padding: 10px 14px; font-size: 15px; min-height: 0; border-radius: 6px;
  }
  .site-nav .menu-label { color: var(--c-primary-dark); cursor: default; padding-bottom: 10px; font-size: 15px; }
  .site-nav .has-sub > .menu-label::after { content: " ▾"; font-size: 11px; color: var(--c-muted); }
  .site-nav .sub {
    display: none; position: absolute; left: 0; top: 100%; min-width: 240px;
    background: var(--c-white); border: 1px solid var(--c-line); border-radius: 8px;
    box-shadow: 0 10px 24px rgba(15, 42, 71, .12); padding: 6px;
  }
  .site-nav .has-sub:hover > .sub,
  .site-nav .has-sub:focus-within > .sub { display: block; }
  .site-nav .sub a { padding: 10px 14px; font-weight: 500; }
}

/* ---------- hero ---------- */
.hero {
  position: relative; color: #fff; text-align: center;
  background: var(--c-primary-dark) center / cover no-repeat;
  min-height: 220px; display: flex; align-items: center; justify-content: center;
}
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15,42,71,.45), rgba(15,42,71,.7)); }
.hero__inner {
  position: relative; width: 100%; max-width: 1080px; margin: 0 auto; box-sizing: border-box;
  padding: 24px 16px; display: flex; align-items: center; gap: 16px; text-align: left;
}
.hero__book { flex: 0 0 38%; max-width: 230px; display: block; border-radius: 10px; overflow: hidden;
  box-shadow: 0 6px 20px rgba(0,0,0,.45); transition: transform .2s; }
.hero__book:hover, .hero__book:focus-visible { transform: translateY(-3px); }
.hero__book img { display: block; width: 100%; height: auto; }
.hero__text { flex: 1 1 auto; min-width: 0; }
.hero__name { margin: 0 0 8px; font-size: 21px; font-weight: 700; letter-spacing: .03em; line-height: 1.4; }
.hero__name span { display: block; }
.hero__tag { margin: 0; font-size: 12px; opacity: .92; line-height: 1.6; word-break: auto-phrase; text-wrap: balance; }
@media (min-width: 600px) {
  .hero__name span { display: inline; }
  .hero__inner { gap: 32px; padding: 32px 24px; }
  .hero__name { font-size: 26px; }
  .hero__tag { font-size: 16px; }
}
@media (min-width: 900px) {
  .hero { min-height: 420px; }
  .hero__inner { gap: 56px; padding: 40px 24px; }
  .hero__book { flex-basis: 260px; max-width: 260px; }
  .hero__text { text-align: center; }
  .hero__name { font-size: 36px; }
  .hero__tag { font-size: 19px; }
}

/* ---------- sections ---------- */
.section { padding: 36px 0; }
.section--alt { background: var(--c-bg); }
.section__title {
  margin: 0 0 18px; font-size: 20px; line-height: 1.4; color: var(--c-primary-dark);
  padding-left: 12px; border-left: 5px solid var(--c-primary);
}
.section__more { margin: 18px 0 0; text-align: right; }

/* ---------- shop grid ---------- */
.na-items { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.na-item a {
  display: block; text-decoration: none; color: inherit; background: var(--c-white);
  border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; height: 100%;
}
.na-item a:hover { box-shadow: 0 6px 16px rgba(15, 42, 71, .12); }
.na-item img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; background: var(--c-bg); }
.na-item__name { display: block; padding: 10px 12px 0; font-size: 14px; line-height: 1.5; font-weight: 700; }
.na-item__price { display: block; padding: 2px 12px 12px; font-size: 14px; color: var(--c-muted); }
@media (min-width: 700px) { .na-items { grid-template-columns: repeat(3, 1fr); gap: 18px; } }

.btn, .na-btn {
  display: inline-block; background: var(--c-primary); color: #fff !important; text-decoration: none;
  padding: 12px 24px; border-radius: 999px; font-weight: 700; min-height: 44px; border: 0; cursor: pointer; font: inherit; font-weight: 700;
}
.btn:hover, .na-btn:hover { background: var(--c-primary-dark); }
.btn--ghost { background: transparent; color: var(--c-primary) !important; border: 2px solid var(--c-primary); }
.btn--ghost:hover { background: var(--c-accent); }

/* ---------- topics ---------- */
.topics { list-style: none; margin: 0; padding: 0; background: var(--c-white); border: 1px solid var(--c-line); border-radius: var(--radius); }
.topics li { padding: 14px 16px; border-top: 1px solid var(--c-line); }
.topics li:first-child { border-top: 0; }
.topics a { font-weight: 700; text-decoration: none; display: block; }
.topics a:hover { text-decoration: underline; }
.topics__meta { display: block; margin-top: 2px; font-size: 13px; color: var(--c-muted); }
.badge-new {
  display: inline-block; margin-right: 6px; padding: 0 7px; font-size: 11px; font-weight: 700; line-height: 18px;
  color: #fff; background: var(--c-new); border-radius: 4px; vertical-align: 2px;
}
.topics__empty { color: var(--c-muted); }

/* ---------- quick links ---------- */
.quick { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.quick a {
  display: flex; align-items: center; justify-content: center; text-align: center; min-height: 64px; padding: 10px;
  background: var(--c-white); border: 1px solid var(--c-line); border-radius: var(--radius);
  text-decoration: none; color: var(--c-primary-dark); font-weight: 700; line-height: 1.4;
}
.quick a:hover { background: var(--c-accent); }
@media (min-width: 700px) { .quick { grid-template-columns: repeat(4, 1fr); } }

/* ---------- archive list & search ---------- */
.archive-box { background: var(--c-white); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 4px 16px; }
.archive-box summary { cursor: pointer; font-weight: 700; padding: 12px 0; }
.archive-box ul { list-style: none; margin: 0; padding: 0 0 10px; columns: 2; column-gap: 24px; }
.archive-box li { padding: 3px 0; }
@media (min-width: 700px) { .archive-box ul { columns: 4; } }

.search-form { display: flex; gap: 8px; }
.search-form input[type="search"] {
  flex: 1; min-width: 0; font: inherit; padding: 10px 12px; border: 1px solid var(--c-line); border-radius: 8px; min-height: 44px;
}
.search-form button { min-height: 44px; }

/* ---------- main content ---------- */
.main { padding: 28px 0 56px; }
.crumbs { font-size: 13px; color: var(--c-muted); margin: 0 0 14px; }
.crumbs a { color: var(--c-muted); }
.page-title { margin: 0 0 22px; font-size: 24px; line-height: 1.4; color: var(--c-primary-dark); padding-bottom: 12px; border-bottom: 3px solid var(--c-primary); }
.entry-meta { color: var(--c-muted); font-size: 14px; margin: -10px 0 20px; }
.entry-meta a { color: var(--c-muted); }

.entry-content { font-size: 16px; }
.entry-content > *:first-child { margin-top: 0; }
.entry-content h2 { font-size: 21px; margin: 2em 0 .8em; padding-left: 12px; border-left: 5px solid var(--c-primary); line-height: 1.4; }
.entry-content h3 { font-size: 18px; margin: 1.8em 0 .7em; line-height: 1.4; }
.entry-content p { margin: 0 0 1.2em; }
.entry-content table { width: 100%; border-collapse: collapse; margin: 0 0 1.4em; font-size: 15px; }
.entry-content th, .entry-content td { border: 1px solid var(--c-line); padding: 10px 12px; vertical-align: top; text-align: left; }
.entry-content th, .entry-content tr > td:first-child:not(:last-child) { background: var(--c-bg); font-weight: 700; }
.entry-content .alignleft { float: left; margin: 0 16px 8px 0; }
.entry-content .alignright { float: right; margin: 0 0 8px 16px; }
.entry-content .aligncenter { display: block; margin: 0 auto 1em; }
.entry-content::after { content: ""; display: block; clear: both; }
.entry-content blockquote { margin: 0 0 1.2em; padding: 8px 16px; border-left: 4px solid var(--c-line); color: var(--c-muted); }
.entry-content pre { overflow-x: auto; background: var(--c-bg); padding: 12px; border-radius: 8px; white-space: pre-wrap; }
.wp-caption { max-width: 100%; }
.wp-caption-text, figcaption { font-size: 13px; color: var(--c-muted); }

.post-list { list-style: none; margin: 0; padding: 0; }
.post-list li { padding: 16px 0; border-top: 1px solid var(--c-line); }
.post-list li:first-child { border-top: 0; }
.post-list a.post-list__title { font-weight: 700; font-size: 17px; text-decoration: none; }
.post-list a.post-list__title:hover { text-decoration: underline; }
.post-list__date { display: block; font-size: 13px; color: var(--c-muted); }
.post-list__excerpt { margin: 4px 0 0; font-size: 15px; color: var(--c-muted); }

.pager { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 28px 0 0; }
.pager .page-numbers {
  min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
  padding: 0 12px; border: 1px solid var(--c-line); border-radius: 8px; text-decoration: none; color: var(--c-primary-dark);
}
.pager .current { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

.post-nav { display: flex; flex-direction: column; gap: 10px; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--c-line); font-size: 15px; }
@media (min-width: 700px) { .post-nav { flex-direction: row; justify-content: space-between; } .post-nav > div { max-width: 48%; } }

/* ---------- shortcode replacements ---------- */
.na-box { border: 1px solid var(--c-line); border-radius: var(--radius); margin: 0 0 1.6em; overflow: hidden; background: var(--c-white); }
.na-box__title { margin: 0 !important; padding: 10px 16px !important; background: var(--c-primary); color: #fff; font-size: 17px !important; border: 0 !important; line-height: 1.5; }
.na-box__body { padding: 16px; }
.na-box__body > *:last-child { margin-bottom: 0; }
.na-note { border-left: 5px solid var(--c-primary); background: var(--c-accent); padding: 12px 16px; margin: 0 0 1.4em; border-radius: 0 8px 8px 0; }
.na-row { display: flex; flex-wrap: wrap; gap: 16px; margin: 0 0 1.4em; }
.na-col { flex: 1 1 100%; min-width: 0; }
@media (min-width: 700px) {
  .na-col--1-2 { flex: 1 1 calc(50% - 8px); }
  .na-col--1-3 { flex: 1 1 calc(33.333% - 11px); }
  .na-col--2-3 { flex: 1 1 calc(66.666% - 5px); }
  .na-col--1-4 { flex: 1 1 calc(25% - 12px); }
}
.na-tab { margin: 0 0 1.6em; }
.na-tab > h3 { margin: 0 0 .6em; }
.na-map { margin: 0 0 1em; }
.na-map iframe { width: 100%; border: 0; border-radius: 8px; }
.na-spacer { display: block; }
.na-center { text-align: center; margin: 1.2em 0; }
.na-details { border: 1px solid var(--c-line); border-radius: 8px; margin: 0 0 1em; }
.na-details summary { cursor: pointer; padding: 10px 14px; font-weight: 700; }
.na-details > div { padding: 0 14px 12px; }
.na-embed { position: relative; padding-top: 56.25%; margin: 0 0 1.4em; }
.na-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------- contact form ---------- */
.na-form { display: grid; gap: 16px; margin: 0 0 1.4em; }
.na-form label { display: block; font-weight: 700; margin: 0 0 4px; }
.na-form .req { color: var(--c-new); font-size: 12px; margin-left: 6px; }
.na-form .opt { color: var(--c-muted); font-size: 12px; font-weight: 400; margin-left: 6px; }
.na-form input[type="text"], .na-form input[type="email"], .na-form input[type="tel"], .na-form textarea {
  width: 100%; font: inherit; font-size: 16px; padding: 12px; border: 1px solid #c7d0db; border-radius: 8px; background: #fff;
}
.na-form textarea { min-height: 180px; resize: vertical; }
.na-form input:focus, .na-form textarea:focus { outline: 2px solid var(--c-primary); outline-offset: 1px; }
.na-form .hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.na-form button { justify-self: start; min-width: 200px; }
.na-msg { padding: 14px 16px; border-radius: 8px; margin: 0 0 1.2em; font-weight: 700; }
.na-msg--ok { background: #e7f6ec; color: #17603a; }
.na-msg--ng { background: #fdecec; color: #8a1f24; }

/* ---------- footer ---------- */
.site-footer { background: var(--c-primary-dark); color: #cfd9e6; padding: 28px 0 32px; font-size: 14px; text-align: center; }
.site-footer a { color: #fff; }
.site-footer__name { font-weight: 700; color: #fff; margin: 0 0 4px; }
.site-footer p { margin: 0; }
.to-top { display: inline-block; margin-bottom: 14px; }

@media print { .site-header, .site-footer, .nav-toggle { display: none; } }
.topics__note { display: block; font-size: 13px; color: var(--c-muted, #555); margin-top: 2px; }
.na-confirm { margin: 0 0 1.4em; border-top: 1px solid var(--c-border, #ddd); }
.na-confirm dt { font-weight: 700; padding: 12px 0 2px; font-size: 14px; color: var(--c-muted); }
.na-confirm dd { margin: 0; padding: 0 0 12px; border-bottom: 1px solid var(--c-border, #ddd); word-break: break-word; }
.na-form__btns { display: flex; gap: 12px; flex-wrap: wrap; }
.na-form__btns .btn { flex: 1 1 140px; min-width: 0; }
.na-done { text-align: center; padding: 24px 0; }
.na-done__title { margin: 0 0 12px; }
.na-done__btn { margin-top: 24px; }
.na-done__btn .btn { min-width: 200px; }