/*
Theme Name: SakuraNavi
Theme URI: https://livechatnavi.com
Author: LiveChatNavi
Description: 日本語のライブチャット比較・ランキング向けクリーンテーマ（和紙ホワイト × 桜ピンク × 藍）。livechatnavi.com 専用。
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 8.0
License: GNU General Public License v2 or later
Text Domain: sakuranavi
*/

/* ── Tokens (light washi aesthetic — radically different from the dark cam blogs) ── */
:root {
  --ink-900: #1b1b24;
  --ink-700: #3a3a47;
  --ink-500: #6a6a78;
  --ink-300: #9a9aa6;
  --paper: #fbf7f4;          /* washi off-white */
  --paper-2: #ffffff;
  --paper-3: #f2ece8;
  --sakura: #e8638b;         /* sakura pink (primary) */
  --sakura-soft: #f4a8c0;
  --sakura-bg: #fdeef3;
  --ai: #3a4a7a;             /* indigo (藍) accent */
  --ai-soft: #6678a8;
  --gold: #c8a86a;
  --line: #ece3dd;
  --radius: 14px;
  --radius-pill: 999px;
  --jp-serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", "MS PMincho", serif;
  --jp-sans: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", "Meiryo", system-ui, sans-serif;
  --shadow: 0 10px 30px -16px rgba(40, 20, 30, .25);
  --shadow-hi: 0 18px 44px -18px rgba(232, 99, 139, .35);
  --maxw: 1080px;
}

/* ── Base ── */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--jp-sans);
  font-size: 16px;
  line-height: 1.85;            /* roomy for kana/kanji */
  letter-spacing: .01em;
  color: var(--ink-900);
  background: var(--paper);
  background-image:
    radial-gradient(820px 360px at 88% -120px, rgba(232, 99, 139, .07), transparent 62%),
    radial-gradient(680px 480px at -160px 30%, rgba(58, 74, 122, .045), transparent 60%);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--sakura); text-decoration: none; transition: color .16s ease; }
a:hover { color: var(--ai); }
img { max-width: 100%; height: auto; display: block; }
::selection { background: var(--sakura-soft); color: #fff; }

h1, h2, h3, h4 { font-family: var(--jp-sans); font-weight: 700; line-height: 1.4; color: var(--ink-900); letter-spacing: .01em; }
h2 { font-size: 1.5rem; margin: 2.2rem 0 .9rem; }
h3 { font-size: 1.2rem; margin: 1.8rem 0 .7rem; }

.sn-wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.1rem; }

/* ── Header ── */
.sn-top {
  padding: .9rem 0;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 40;
}
.sn-top__inner { display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap; }
.sn-brand { font-size: 1.5rem; margin: 0; font-weight: 800; letter-spacing: .02em; }
.sn-brand a { color: var(--ink-900); display: inline-flex; align-items: center; gap: .4rem; }
.sn-brand a:hover { color: var(--sakura); }
.sn-brand .sn-mark { color: var(--sakura); }
.sn-tag { font-size: .78rem; color: var(--ink-500); }
.sn-nav { display: flex; gap: 1rem; font-size: .9rem; font-weight: 600; flex-wrap: wrap; }
.sn-nav a { color: var(--ink-700); }
.sn-nav a:hover { color: var(--sakura); }
.sn-search { margin-left: auto; display: flex; }
.sn-search input[type="search"] {
  background: var(--paper-2); border: 1px solid var(--line);
  border-radius: var(--radius-pill) 0 0 var(--radius-pill);
  color: var(--ink-900); padding: .42rem .7rem .42rem 1rem; width: 10rem; font-size: .86rem;
  font-family: var(--jp-sans);
}
.sn-search input[type="search"]:focus { outline: 2px solid var(--sakura-soft); }
.sn-search button {
  background: var(--sakura); color: #fff; border: 0; cursor: pointer;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0; padding: .42rem 1rem; font-weight: 700;
}
.sn-search button:hover { background: var(--ai); }

main.sn-wrap { padding-top: .5rem; padding-bottom: 2.5rem; }

/* ── Hero (editorial hub) ── */
.sn-hero { padding: 3rem 0 1.6rem; position: relative; }
.sn-hero h1 { font-size: clamp(1.8rem, 4.6vw, 2.8rem); margin: 0 0 .7rem; max-width: 22ch; }
.sn-hero h1 em { font-style: normal; color: var(--sakura); }
.sn-hero p { color: var(--ink-500); max-width: 56ch; margin: 0; font-size: 1.02rem; }
.sn-hero__petal { position: absolute; right: 6%; top: 18%; font-size: 3.4rem; opacity: .35; pointer-events: none; }
.sn-archive-head { padding: 2.2rem 0 1.2rem; border-bottom: 1px solid var(--line); margin-bottom: 1.2rem; }
.sn-archive-head h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); margin: 0; }
.sn-archive-head h1 em { font-style: normal; color: var(--sakura); }
.sn-desc { color: var(--ink-500); margin-top: .7rem; max-width: 60ch; }

/* ── Post grid ── */
.sn-grid {
  display: grid; gap: 1.3rem;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  padding: 1.4rem 0 2.2rem; list-style: none; margin: 0;
}
.sn-card {
  position: relative; overflow: hidden; border-radius: var(--radius);
  background: var(--paper-2); border: 1px solid var(--line);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  display: flex; flex-direction: column;
}
.sn-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--sakura-soft); }
.sn-card__media { aspect-ratio: 4 / 5; overflow: hidden; background: var(--paper-3); }
.sn-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.sn-card:hover .sn-card__media img { transform: scale(1.05); }
.sn-card__body { padding: .85rem 1rem 1.1rem; display: flex; flex-direction: column; gap: .4rem; flex: 1; }
.sn-chip {
  align-self: flex-start; font-size: .72rem; letter-spacing: .04em;
  background: var(--sakura-bg); color: var(--sakura); border: 1px solid var(--sakura-soft);
  border-radius: var(--radius-pill); padding: .14rem .65rem; font-weight: 600;
}
.sn-card__title { font-size: 1rem; margin: 0; line-height: 1.5; }
.sn-card__title a { color: var(--ink-900); }
.sn-card__title a:hover { color: var(--sakura); }
.sn-card__date { font-size: .76rem; color: var(--ink-300); }

/* promo card (monetisation, in-feed) */
.sn-card--promo {
  background: linear-gradient(160deg, #fff, var(--sakura-bg));
  border-color: var(--sakura-soft);
  align-items: stretch; justify-content: center; text-align: center;
}
.sn-card--promo a { display: flex; flex-direction: column; gap: .4rem; padding: 1.4rem 1.1rem; height: 100%; justify-content: center; color: var(--ink-900); }
.sn-card--promo strong { font-size: 1.05rem; line-height: 1.5; }
.sn-card--promo span { font-size: .82rem; color: var(--ink-500); }
.sn-card--promo .sn-btn { margin-top: .5rem; }
.sn-live-dot { font-size: 1.4rem; }
.sn-tint-ai { background: linear-gradient(160deg, #fff, #eef1f8); border-color: var(--ai-soft); }
.sn-tint-gold { background: linear-gradient(160deg, #fff, #f8f1e2); border-color: var(--gold); }

/* ── Pagination ── */
.sn-pagination { display: flex; gap: .4rem; flex-wrap: wrap; padding: .5rem 0 1.5rem; }
.sn-pagination .page-numbers {
  padding: .4rem .8rem; border-radius: var(--radius-pill); border: 1px solid var(--line);
  background: var(--paper-2); color: var(--ink-700); font-size: .9rem;
}
.sn-pagination .page-numbers.current { background: var(--sakura); color: #fff; border-color: var(--sakura); }
.sn-pagination a.page-numbers:hover { border-color: var(--sakura); color: var(--sakura); }

/* ── Article ── */
.sn-article { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.2rem, 4vw, 2.4rem); margin: 1.4rem 0; box-shadow: var(--shadow); }
.sn-article__head { margin-bottom: 1.2rem; }
.sn-article__head h1 { font-size: clamp(1.5rem, 4.2vw, 2.2rem); margin: .6rem 0 .4rem; line-height: 1.45; }
.sn-article__meta { color: var(--ink-300); font-size: .82rem; margin: 0; }
.sn-article__content { font-size: 1.04rem; }
.sn-article__content p { margin: 1rem 0; }
.sn-article__content img { border-radius: 10px; margin: .8rem auto; }
.sn-article__content figure { margin: 1rem 0; }
.sn-article__content h2 { border-left: 4px solid var(--sakura); padding-left: .7rem; }
.sn-article__content ul, .sn-article__content ol { padding-left: 1.4rem; }
.sn-article__content a { text-decoration: underline; text-decoration-color: var(--sakura-soft); text-underline-offset: 3px; }
.sn-article__content table { width: 100%; border-collapse: collapse; margin: 1.2rem 0; font-size: .94rem; }
.sn-article__content th, .sn-article__content td { border: 1px solid var(--line); padding: .55rem .7rem; text-align: left; }
.sn-article__content thead th { background: var(--sakura-bg); color: var(--ink-900); }
.sn-article__content tbody tr:nth-child(even) { background: var(--paper); }

.sn-tags { margin: 1.4rem 0 .4rem; display: flex; gap: .4rem; flex-wrap: wrap; }
.sn-tags a { font-size: .76rem; color: var(--ink-500); background: var(--paper-3); border-radius: var(--radius-pill); padding: .16rem .65rem; }
.sn-tags a:hover { color: var(--sakura); }

.sn-more-models { margin: 2rem 0 1rem; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.sn-chips { display: flex; gap: .45rem; flex-wrap: wrap; margin: 0; padding: 0; }
.sn-nav-posts { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.6rem; font-size: .9rem; flex-wrap: wrap; }
.sn-nav-posts a { color: var(--ai); }

/* ── CTA (monetisation, in-article) ── */
.sn-cta {
  margin: 2rem 0 .5rem; padding: 1.4rem 1.5rem; border-radius: var(--radius);
  background: linear-gradient(150deg, var(--sakura-bg), #fff);
  border: 1px solid var(--sakura-soft); text-align: center;
}
.sn-cta strong { font-size: 1.15rem; display: block; margin-bottom: .3rem; color: var(--ink-900); }
.sn-cta p { color: var(--ink-500); margin: 0 0 .9rem; font-size: .95rem; }
.sn-btn {
  display: inline-block; background: var(--sakura); color: #fff !important; font-weight: 700;
  padding: .7rem 1.6rem; border-radius: var(--radius-pill); font-size: 1rem;
  box-shadow: var(--shadow-hi); transition: transform .15s ease, background .15s ease;
  text-decoration: none !important;
}
.sn-btn:hover { background: var(--ai); transform: translateY(-2px); color: #fff !important; }

/* ── Sticky bar (monetisation) ── */
.sn-sticky {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  display: flex; align-items: center; gap: .8rem; justify-content: center; flex-wrap: wrap;
  background: rgba(27, 27, 36, .94); color: #fff; padding: .6rem 1rem;
  backdrop-filter: blur(6px); box-shadow: 0 -8px 24px -12px rgba(0,0,0,.4);
}
.sn-sticky__txt { font-size: .92rem; font-weight: 600; }
.sn-sticky .sn-btn { padding: .42rem 1.1rem; font-size: .9rem; box-shadow: none; }
.sn-sticky__close { background: transparent; border: 0; color: #fff; font-size: 1.4rem; cursor: pointer; line-height: 1; padding: 0 .3rem; }

/* ── Editorial hub block (home) ── */
.sn-editorial { margin: 1.5rem 0 1rem; padding: 1.8rem 0 0; border-top: 1px solid var(--line); }
.sn-editorial h2 { font-size: 1.4rem; }
.sn-editorial p { color: var(--ink-700); }
.sn-editorial ul { color: var(--ink-700); }
.sn-editorial__chips { display: flex; gap: .5rem; flex-wrap: wrap; margin: .6rem 0 0; padding: 0; }

/* hub link cards (ranking / guides) */
.sn-hubgrid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin: 1.4rem 0; padding: 0; list-style: none; }
.sn-hubgrid li { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.3rem; transition: border-color .18s, box-shadow .18s, transform .18s; }
.sn-hubgrid li:hover { border-color: var(--sakura-soft); box-shadow: var(--shadow); transform: translateY(-3px); }
.sn-hubgrid h3 { margin: 0 0 .4rem; font-size: 1.08rem; }
.sn-hubgrid h3 a { color: var(--ink-900); }
.sn-hubgrid h3 a:hover { color: var(--sakura); }
.sn-hubgrid p { margin: 0; font-size: .9rem; color: var(--ink-500); }

/* ── Footer ── */
.sn-footer { border-top: 1px solid var(--line); background: var(--paper-3); padding: 2rem 0; margin-top: 2rem; }
.sn-footer .sn-wrap { display: flex; flex-direction: column; gap: .6rem; }
.sn-18 { display: inline-block; background: var(--ink-900); color: #fff; font-weight: 700; font-size: .72rem; padding: .12rem .5rem; border-radius: 5px; }
.sn-footer p { margin: 0; font-size: .82rem; color: var(--ink-500); }
.sn-footer a { color: var(--ai); }

.sn-empty { text-align: center; padding: 4rem 1rem; }
.sn-empty h1 { font-size: 1.6rem; }
.sn-empty p { color: var(--ink-500); }

/* ── Responsive ── */
@media (max-width: 640px) {
  .sn-search { width: 100%; margin-left: 0; }
  .sn-search input[type="search"] { flex: 1; width: auto; }
  .sn-nav { width: 100%; }
  body { font-size: 15.5px; }
}