/*
Theme Name: Portal News (Original)
Theme URI: https://example.com/
Author: Your Name
Author URI: https://example.com/
Description: ニュースポータル風のオリジナルデザインテーマです。特定企業のロゴ・商標・配色（トレードドレス）は一切使用せず、独自のカラーパレット・書体・レイアウトで構成しています。トップページはカード型見出し一覧＋ランキング、単記事ページはニュース記事レイアウトです。
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: portal-news
*/

/* =========================================================
   Design Tokens（オリジナル配色・書体。Yahoo!等の商標色は不使用）
   ========================================================= */
:root{
  --c-ink:        #12233F;   /* header / dark base */
  --c-ink-2:      #1B3358;   /* header hover */
  --c-coral:      #FF6B4A;   /* accent (Yahoo!赤 #FF0033 とは異なる暖色コーラル) */
  --c-coral-deep: #E0512F;
  --c-gold:       #D4A017;   /* ranking numerals */
  --c-paper:      #FAF7F2;   /* background */
  --c-card:       #FFFFFF;
  --c-line:       #E7E1D6;
  --c-text:       #26241F;
  --c-text-mute:  #6B675D;
  --c-tag-bg:     #F1ECE1;

  --font-display: "Shippori Mincho", "Noto Serif JP", serif;
  --font-body:    "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-meta:    "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;

  --radius: 3px;
  --header-h: 64px;
  --ticker-h: 34px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-text);
  font-family:var(--font-body);
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; }
a:hover{ color:var(--c-coral-deep); }
:focus-visible{ outline:2px solid var(--c-coral); outline-offset:2px; }
ul{ list-style:none; margin:0; padding:0; }

.container{
  max-width:1120px;
  margin:0 auto;
  padding:0 20px;
}

/* =========================================================
   Header
   ========================================================= */
.site-header{
  background:var(--c-ink);
  color:#fff;
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:var(--header-h);
  gap:24px;
}
.site-branding{
  display:flex;
  align-items:baseline;
  gap:10px;
}
.site-branding .site-title{
  font-family:var(--font-display);
  font-size:26px;
  font-weight:700;
  letter-spacing:.04em;
  color:#fff;
  margin:0;
}
.site-branding .site-title a{ color:#fff; }
.site-branding .site-tagline{
  font-family:var(--font-meta);
  font-size:11px;
  color:#B9C2D4;
  letter-spacing:.08em;
}

.primary-nav ul{ display:flex; gap:2px; }
.primary-nav a{
  display:block;
  padding:10px 14px;
  font-size:13px;
  font-weight:600;
  color:#DCE3F0;
  border-radius:var(--radius);
  white-space:nowrap;
}
.primary-nav a:hover,
.primary-nav .current-menu-item a{
  background:var(--c-ink-2);
  color:#fff;
}

.header-search form{
  display:flex;
  border:1px solid #33456B;
  border-radius:20px;
  overflow:hidden;
  background:#0E1C33;
}
.header-search input[type="search"]{
  border:0;
  background:transparent;
  padding:7px 14px;
  color:#fff;
  font-size:13px;
  width:150px;
}
.header-search input[type="search"]::placeholder{ color:#7C87A0; }
.header-search button{
  border:0;
  background:var(--c-coral);
  color:#fff;
  padding:0 16px;
  font-size:12px;
  font-weight:700;
  cursor:pointer;
}

/* Ticker：更新中を演出するライブ風の見出し帯（本テーマのシグネチャ要素） */
.news-ticker{
  height:var(--ticker-h);
  background:var(--c-ink-2);
  border-top:1px solid #2A3E64;
  overflow:hidden;
}
.news-ticker .container{
  height:100%;
  display:flex;
  align-items:center;
  gap:14px;
}
.news-ticker .ticker-label{
  flex:0 0 auto;
  background:var(--c-coral);
  color:#fff;
  font-size:11px;
  font-weight:700;
  padding:3px 10px;
  border-radius:2px;
  letter-spacing:.05em;
}
.news-ticker .ticker-clock{
  flex:0 0 auto;
  font-family:var(--font-meta);
  font-size:12px;
  color:#9FB0CC;
  font-variant-numeric:tabular-nums;
}
.ticker-track-wrap{
  flex:1 1 auto;
  overflow:hidden;
  white-space:nowrap;
  position:relative;
  height:100%;
}
.ticker-track{
  display:inline-flex;
  align-items:center;
  gap:40px;
  position:absolute;
  white-space:nowrap;
  animation:ticker-scroll 28s linear infinite;
  will-change:transform;
}
.ticker-track a{ font-size:12.5px; color:#EAEEF6; }
.ticker-track a:hover{ color:var(--c-coral); }
@keyframes ticker-scroll{
  0%{ transform:translateX(0); }
  100%{ transform:translateX(-50%); }
}
@media (prefers-reduced-motion: reduce){
  .ticker-track{ animation:none; }
}

/* =========================================================
   Layout
   ========================================================= */
.site-main-wrap{
  padding:28px 0 48px;
}
.layout-grid{
  display:grid;
  grid-template-columns:1fr 300px;
  gap:32px;
  align-items:start;
}
.section-heading{
  font-family:var(--font-display);
  font-size:18px;
  font-weight:700;
  border-left:5px solid var(--c-coral);
  padding-left:10px;
  margin:0 0 16px;
}

/* Hero（トップ最上段の主要記事） */
.hero-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:18px;
  margin-bottom:32px;
}
.hero-main{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  overflow:hidden;
}
.hero-main .thumb{ aspect-ratio:16/9; overflow:hidden; background:#eee; }
.hero-main .thumb img{ width:100%; height:100%; object-fit:cover; }
.hero-main .hero-body{ padding:18px 20px 22px; }
.hero-main .hero-title{
  font-family:var(--font-display);
  font-size:24px;
  line-height:1.5;
  margin:8px 0 10px;
}
.hero-sub-list{ display:flex; flex-direction:column; gap:14px; }
.hero-sub-item{
  display:flex;
  gap:12px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  padding:10px;
}
.hero-sub-item .thumb{
  flex:0 0 96px;
  width:96px; height:64px;
  border-radius:2px;
  overflow:hidden;
  background:#eee;
}
.hero-sub-item .thumb img{ width:100%; height:100%; object-fit:cover; }
.hero-sub-item .hero-sub-title{
  font-size:13.5px;
  line-height:1.5;
  font-weight:600;
}

/* カテゴリバッジ */
.badge{
  display:inline-block;
  font-family:var(--font-meta);
  font-size:11px;
  font-weight:700;
  color:#fff;
  background:var(--c-ink);
  padding:2px 8px;
  border-radius:2px;
  letter-spacing:.03em;
}
.badge--coral{ background:var(--c-coral); }
.meta-line{
  font-family:var(--font-meta);
  font-size:11.5px;
  color:var(--c-text-mute);
  display:flex;
  gap:8px;
  align-items:center;
  margin-top:6px;
}

/* 記事カードグリッド */
.article-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
  margin-bottom:36px;
}
.article-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.article-card .thumb{ aspect-ratio:16/9; overflow:hidden; background:#eee; }
.article-card .thumb img{ width:100%; height:100%; object-fit:cover; transition:transform .3s; }
.article-card:hover .thumb img{ transform:scale(1.04); }
.article-card .card-body{ padding:12px 14px 16px; }
.article-card .card-title{
  font-size:14.5px;
  font-weight:700;
  line-height:1.55;
  margin:8px 0 0;
}
.article-card .card-excerpt{
  font-size:12.5px;
  color:var(--c-text-mute);
  margin-top:6px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

/* =========================================================
   Sidebar（ランキング等）
   ========================================================= */
.widget{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  margin-bottom:24px;
  padding:16px;
}
.widget-title{
  font-family:var(--font-display);
  font-size:15px;
  font-weight:700;
  margin:0 0 12px;
  padding-bottom:10px;
  border-bottom:2px solid var(--c-ink);
}
.rank-list{ display:flex; flex-direction:column; }
.rank-item{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:10px 0;
  border-bottom:1px dashed var(--c-line);
}
.rank-item:last-child{ border-bottom:0; }
.rank-num{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:700;
  color:var(--c-gold);
  width:24px;
  flex:0 0 24px;
  line-height:1.2;
}
.rank-item:nth-child(1) .rank-num{ color:var(--c-coral); font-size:24px; }
.rank-title{ font-size:13px; line-height:1.5; font-weight:600; }

.tag-cloud-widget{ display:flex; flex-wrap:wrap; gap:6px; }
.tag-cloud-widget a{
  background:var(--c-tag-bg);
  padding:4px 10px;
  border-radius:12px;
  font-size:11.5px;
  color:var(--c-text-mute);
}
.tag-cloud-widget a:hover{ background:var(--c-coral); color:#fff; }

/* =========================================================
   Single Article Page
   ========================================================= */
.article-header{
  padding:26px 0 18px;
  border-bottom:1px solid var(--c-line);
  margin-bottom:24px;
}
.article-header .article-title{
  font-family:var(--font-display);
  font-size:30px;
  line-height:1.5;
  margin:12px 0 10px;
}
.article-lead-image{
  margin:0 0 22px;
  border-radius:var(--radius);
  overflow:hidden;
}
.article-lead-image figcaption{
  font-size:11.5px;
  color:var(--c-text-mute);
  padding:8px 2px 0;
}
.article-body{
  font-size:16px;
  line-height:1.95;
  max-width:760px;
}
.article-body p{ margin:0 0 1.4em; }
.article-body h2{
  font-family:var(--font-display);
  font-size:21px;
  margin:2em 0 .8em;
  padding-left:10px;
  border-left:4px solid var(--c-coral);
}
.article-body blockquote{
  margin:1.6em 0;
  padding:14px 18px;
  background:var(--c-tag-bg);
  border-left:4px solid var(--c-ink);
  font-size:14.5px;
}
.article-footer-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:28px 0;
}
.article-source-note{
  font-size:12px;
  color:var(--c-text-mute);
  background:var(--c-tag-bg);
  padding:12px 14px;
  border-radius:var(--radius);
  margin:24px 0;
}

.related-articles{ margin-top:40px; }
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer{
  background:var(--c-ink);
  color:#C7CFDE;
  margin-top:40px;
}
.footer-nav{
  display:flex;
  flex-wrap:wrap;
  gap:4px 0;
  padding:28px 0 16px;
  border-bottom:1px solid #2A3E64;
}
.footer-nav a{
  font-size:12.5px;
  padding:0 14px;
  border-right:1px solid #3A4E74;
}
.footer-nav li:last-child a{ border-right:0; }
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:16px 0 26px;
  font-size:11px;
  color:#7C87A0;
}
.back-to-top{
  color:#DCE3F0;
  font-size:11px;
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 900px){
  .layout-grid{ grid-template-columns:1fr; }
  .hero-grid{ grid-template-columns:1fr; }
  .article-grid{ grid-template-columns:repeat(2,1fr); }
  .related-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width: 640px){
  .site-header .container{ flex-wrap:wrap; height:auto; padding:10px 16px; gap:10px; }
  .primary-nav{ order:3; width:100%; overflow-x:auto; }
  .primary-nav ul{ width:max-content; }
  .header-search{ order:2; }
  .article-grid{ grid-template-columns:1fr; }
  .related-grid{ grid-template-columns:1fr; }
  .article-header .article-title{ font-size:22px; }
}