/*
Theme Name: ComicDesigner Tips
Theme URI: https://comicdesigner.net/
Author: Appqualia Studio
Author URI: https://appqualia.net/
Description: ComicDesigner.net 用のTIPS・使い方紹介サイト向けカスタムテーマ。投稿ベースでTIPS、ガイド、更新情報を蓄積するための軽量ボイラープレート。
Version: 0.1.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 8.0
License: GPL-2.0-or-later
Text Domain: comicdesigner-tips
*/

:root {
  --cd-bg: #f7f8fb;
  --cd-surface: #ffffff;
  --cd-text: #111827;
  --cd-muted: #6b7280;
  --cd-line: #e5e7eb;
  --cd-primary: #2563eb;
  --cd-primary-dark: #1e40af;
  --cd-accent: #7c3aed;
  --cd-radius: 18px;
  --cd-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
  --cd-max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.10), transparent 35%), var(--cd-bg);
  color: var(--cd-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
  line-height: 1.75;
}
a { color: var(--cd-primary); text-decoration: none; }
a:hover { color: var(--cd-primary-dark); text-decoration: underline; }
img { max-width: 100%; height: auto; }

.cd-container {
  width: min(var(--cd-max), calc(100% - 32px));
  margin: 0 auto;
}

.cd-site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229, 231, 235, 0.75);
}
.cd-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
}
.cd-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--cd-text);
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.15rem;
}
.cd-logo-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--cd-primary), var(--cd-accent));
  color: #fff;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.25);
}
.cd-nav ul {
  display: flex;
  list-style: none;
  gap: 18px;
  margin: 0;
  padding: 0;
  align-items: center;
}
.cd-nav a { color: var(--cd-text); font-weight: 700; font-size: 0.94rem; }
.cd-nav a:hover { color: var(--cd-primary); text-decoration: none; }

.cd-hero {
  padding: 72px 0 46px;
}
.cd-hero-card {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 28px;
  align-items: center;
  padding: 44px;
  border-radius: 28px;
  background: linear-gradient(135deg, #ffffff, #eef4ff);
  box-shadow: var(--cd-shadow);
  border: 1px solid rgba(229, 231, 235, 0.8);
}
.cd-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cd-primary);
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
}
.cd-hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -0.07em;
}
.cd-hero p {
  margin: 0 0 24px;
  color: var(--cd-muted);
  font-size: 1.08rem;
}
.cd-hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cd-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 11px 18px;
  font-weight: 800;
  border: 1px solid var(--cd-line);
  background: #fff;
  color: var(--cd-text);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}
.cd-button-primary {
  background: linear-gradient(135deg, var(--cd-primary), var(--cd-accent));
  color: #fff;
  border: none;
}
.cd-hero-visual {
  min-height: 260px;
  border-radius: 24px;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.35) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,0.35) 1px, transparent 1px),
    linear-gradient(135deg, #111827, #1e3a8a 55%, #7c3aed);
  background-size: 24px 24px, 24px 24px, auto;
  position: relative;
  overflow: hidden;
}
.cd-hero-visual::after {
  content: "TIPS";
  position: absolute;
  right: 24px;
  bottom: 14px;
  color: rgba(255,255,255,0.18);
  font-size: 4.8rem;
  font-weight: 900;
  letter-spacing: -0.08em;
}

.cd-main { padding: 24px 0 72px; }
.cd-section-title {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin: 28px 0 18px;
}
.cd-section-title h2, .cd-archive-title, .cd-single-title, .cd-page-title {
  margin: 0;
  letter-spacing: -0.05em;
  line-height: 1.2;
}
.cd-section-title p { margin: 4px 0 0; color: var(--cd-muted); }

.cd-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.cd-card {
  background: var(--cd-surface);
  border: 1px solid var(--cd-line);
  border-radius: var(--cd-radius);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.05);
  overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease;
}
.cd-card:hover { transform: translateY(-3px); box-shadow: var(--cd-shadow); }
.cd-card-thumb {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #dbeafe, #ede9fe);
  display: block;
}
.cd-card-body { padding: 18px; }
.cd-card h2, .cd-card h3 {
  margin: 8px 0 8px;
  font-size: 1.08rem;
  line-height: 1.45;
  letter-spacing: -0.03em;
}
.cd-meta {
  color: var(--cd-muted);
  font-size: 0.84rem;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.cd-badge {
  display: inline-flex;
  border-radius: 999px;
  background: #eff6ff;
  color: var(--cd-primary-dark);
  padding: 3px 9px;
  font-size: 0.78rem;
  font-weight: 800;
}
.cd-excerpt { color: var(--cd-muted); font-size: 0.94rem; margin: 0; }

.cd-content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 28px;
  align-items: start;
}
.cd-article, .cd-sidebar-card {
  background: var(--cd-surface);
  border: 1px solid var(--cd-line);
  border-radius: 24px;
  box-shadow: var(--cd-shadow);
}
.cd-article { padding: clamp(22px, 4vw, 44px); }
.cd-article-content h2 { margin-top: 2.2em; border-left: 5px solid var(--cd-primary); padding-left: 12px; }
.cd-article-content h3 { margin-top: 1.8em; }
.cd-article-content code {
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: 7px;
  padding: 2px 6px;
}
.cd-article-content pre {
  overflow: auto;
  background: #111827;
  color: #e5e7eb;
  padding: 18px;
  border-radius: 16px;
}
.cd-sidebar-card { padding: 20px; margin-bottom: 18px; }
.cd-sidebar-card h3 { margin: 0 0 10px; }
.cd-sidebar-card ul { margin: 0; padding-left: 1.2em; }

.cd-pagination {
  margin-top: 30px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.cd-pagination .page-numbers {
  padding: 8px 12px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--cd-line);
  color: var(--cd-text);
}
.cd-pagination .current { background: var(--cd-primary); color: #fff; border-color: var(--cd-primary); }

.cd-site-footer {
  border-top: 1px solid var(--cd-line);
  padding: 32px 0;
  background: #fff;
  color: var(--cd-muted);
}
.cd-footer-inner { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 900px) {
  .cd-hero-card, .cd-content-layout { grid-template-columns: 1fr; }
  .cd-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .cd-header-inner { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  .cd-nav ul { flex-wrap: wrap; gap: 12px; }
  .cd-hero { padding-top: 34px; }
  .cd-hero-card { padding: 24px; }
  .cd-grid { grid-template-columns: 1fr; }
}