/*
Theme Name: Affiliate SEO Theme
Theme URI: https://example.com/
Author: ChatGPT
Author URI: https://openai.com/
Description: SEO/AEO and affiliate monetization focused WordPress theme with responsive header categories, CTA buttons, ad slots, and blog archive support.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: affiliate-seo-theme
Tags: blog, affiliate, seo, responsive, custom-menu
*/

:root {
  --main: #1F2A44;
  --sub: #C9A96E;
  --blue-gray: #A3B1C1;
  --green: #1F5D50;
  --sage: #A3B18A;
  --light-gray: #E5E7EB;
  --cream: #F7F5F2;
  --warm-gray: #C9C5C1;
  --rose: #D8A7B1;
  --deep-rose: #B76E79;
  --text: #1F2937;
  --white: #FFFFFF;
  --cta: #1F2A44;
  --cta-hover: #E5E7EB;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--cream);
  font-family: 'Noto Sans JP', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.8;
}
a { color: var(--main); text-decoration: none; }
a:hover { opacity: .82; }
img { max-width: 100%; height: auto; }

.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--light-gray);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; }
.site-branding { display: flex; flex-direction: column; gap: 2px; }
.site-title { margin: 0; font-size: 22px; font-weight: 800; letter-spacing: .02em; }
.site-title a { color: var(--main); }
.site-description { margin: 0; font-size: 12px; color: #6B7280; }
.main-nav ul { display: flex; align-items: center; gap: 6px; list-style: none; margin: 0; padding: 0; }
.main-nav a { display: block; padding: 10px 13px; border-radius: 999px; font-weight: 700; font-size: 14px; color: var(--main); }
.main-nav a:hover, .main-nav .current-menu-item > a { background: var(--light-gray); opacity: 1; }

.hero { padding: 64px 0 44px; background: linear-gradient(135deg, #fff 0%, var(--cream) 48%, #EEF1F5 100%); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 36px; align-items: center; }
.hero-label { display: inline-flex; color: var(--green); background: #E9F0ED; border: 1px solid #D8E2DC; border-radius: 999px; padding: 6px 12px; font-size: 13px; font-weight: 800; }
.hero h1 { color: var(--main); font-size: clamp(30px, 4vw, 48px); line-height: 1.35; margin: 18px 0 16px; letter-spacing: .01em; }
.hero p { font-size: 17px; color: #4B5563; margin: 0 0 24px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn, .wp-block-button__link, input[type='submit'], button {
  display: inline-flex; align-items: center; justify-content: center;
  border: none; border-radius: 999px;
  padding: 12px 20px;
  background: var(--cta);
  color: var(--white) !important;
  font-weight: 800;
  cursor: pointer;
  transition: .2s ease;
}
.btn:hover, .wp-block-button__link:hover, input[type='submit']:hover, button:hover {
  background: var(--cta-hover);
  color: var(--main) !important;
  opacity: 1;
}
.btn-sub { background: var(--sub); color: var(--main) !important; }
.btn-outline {
  background: var(--white);
  color: var(--main) !important;
  border: 1px solid var(--light-gray);
}

.btn-outline:hover {
  background: var(--light-gray);
  color: var(--main) !important;
  opacity: 1;
}
.hero-card { background: var(--white); border: 1px solid var(--light-gray); border-radius: 28px; padding: 26px; box-shadow: 0 18px 40px rgba(31,42,68,.08); }
.hero-card h2 { margin: 0 0 10px; color: var(--main); font-size: 22px; }
.hero-card ul { margin: 0; padding-left: 1.1em; }
.hero-card li { margin: 8px 0; }

.section { padding: 48px 0; }
.section-title { color: var(--main); font-size: 28px; margin: 0 0 20px; }
.category-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.category-card { background: var(--white); border: 1px solid var(--light-gray); border-radius: 24px; padding: 24px; min-height: 180px; box-shadow: 0 10px 28px rgba(31,42,68,.05); }
.category-card:nth-child(1) { border-top: 5px solid var(--sub); }
.category-card:nth-child(2) { border-top: 5px solid var(--green); }
.category-card:nth-child(3) { border-top: 5px solid var(--deep-rose); }
.category-card h3 { margin: 0 0 8px; color: var(--main); font-size: 22px; }
.category-card p { margin: 0 0 16px; color: #4B5563; }

.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 32px; padding: 42px 0; }
.post-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.post-card { background: var(--white); border: 1px solid var(--light-gray); border-radius: 22px; overflow: hidden; box-shadow: 0 8px 22px rgba(31,42,68,.05); }
.post-card-content { padding: 20px; }
.post-card h2, .post-card h3 { margin: 0 0 8px; color: var(--main); font-size: 20px; line-height: 1.5; }
.post-meta { color: #6B7280; font-size: 13px; margin-bottom: 10px; }
.excerpt { color: #4B5563; margin: 0 0 16px; }
.badge { display: inline-flex; background: var(--light-gray); color: var(--main); border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 800; }

.article { background: var(--white); border: 1px solid var(--light-gray); border-radius: 24px; padding: clamp(22px, 4vw, 42px); }
.article h1 { color: var(--main); line-height: 1.4; }
.article h2 { color: var(--main); border-left: 5px solid var(--sub); padding-left: 12px; margin-top: 36px; }
.article h3 { color: var(--green); margin-top: 28px; }
.article table { width: 100%; border-collapse: collapse; background: #fff; }
.article th, .article td { border: 1px solid var(--light-gray); padding: 10px; }
.article th { background: var(--cream); }

.sidebar { display: flex; flex-direction: column; gap: 18px; }
.widget { background: var(--white); border: 1px solid var(--light-gray); border-radius: 22px; padding: 20px; }
.widget h2, .widget-title { color: var(--main); font-size: 18px; margin-top: 0; }
.ad-box { background: linear-gradient(135deg, var(--main), #34415F); color: #fff; border-radius: 20px; padding: 22px; text-align: center; }
.ad-box small { color: #D1D5DB; }

.site-footer { background: var(--main); color: #fff; padding: 36px 0; margin-top: auto; }
.site-footer a { color: #fff; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

.pagination { margin-top: 28px; }
.pagination .page-numbers { display: inline-flex; align-items: center; justify-content: center; min-width: 38px; height: 38px; margin-right: 6px; border-radius: 999px; background: #fff; border: 1px solid var(--light-gray); }
.pagination .current { background: var(--main); color: #fff; }

@media (max-width: 860px) {
  .header-inner, .footer-inner { align-items: flex-start; flex-direction: column; }
  .main-nav ul { flex-wrap: wrap; }
  .hero-grid, .content-layout, .category-cards { grid-template-columns: 1fr; }
  .post-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 36px; }
}
.main-navigation ul {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-navigation a {
  display: block;
  padding: 10px 13px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  color: var(--main);
  opacity: 1;
}

.main-navigation a:hover,
.main-navigation .current-menu-item > a {
  background: #E5E7EB;
  color: var(--main);
  opacity: 1;
}
html,
body {
  min-height: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}
/* PCではハンバーガー非表示 */
.menu-toggle {
  display: none;
}

/* スマホ用 */
@media (max-width: 768px) {
  .site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
  }

  .header-inner {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    flex-direction: row !important;
    position: relative;
    width: 100%;
  }

  .site-branding {
    flex: 1;
  }

  .menu-toggle {
    display: flex !important;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    margin-left: auto;
    background: transparent !important;
    border: none;
    padding: 0;
    cursor: pointer;
  }

  .menu-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: #1F2A44;
    border-radius: 999px;
  }

  .main-navigation {
    display: none !important;
    position: fixed;
    top: 76px;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-top: 1px solid #E5E7EB;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    z-index: 9998;
  }

  .main-navigation.is-open {
    display: block !important;
  }

  .main-navigation ul {
    display: flex !important;
    flex-direction: column;
    align-items: stretch;
    margin: 0;
    padding: 16px 20px;
    list-style: none;
  }

  .main-navigation li {
    border-bottom: 1px solid #E5E7EB;
  }

  .main-navigation a {
    display: block;
    padding: 14px 0;
    color: #1F2A44;
  }
}
/* スマホメニューが開かない場合の上書き */
@media (max-width: 768px) {
  .site-header .main-navigation {
    display: none !important;
  }

  .site-header .main-navigation.is-open {
    display: block !important;
    position: fixed !important;
    top: 76px;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-top: 1px solid #E5E7EB;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    z-index: 99999;
  }

  .site-header .main-navigation.is-open ul {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 0 !important;
    margin: 0;
    padding: 16px 20px;
    list-style: none;
  }

  .site-header .main-navigation.is-open li {
    display: block !important;
    border-bottom: 1px solid #E5E7EB;
  }

  .site-header .main-navigation.is-open a {
    display: block !important;
    padding: 14px 0;
    color: #1F2A44 !important;
    border-radius: 0;
  }
}