/*
Theme Name: Web Course
Theme URI: https://progcube.jp/
Description: Web講師向けテーマ。毎週の課題と授業目次を生徒に知らせます。
Version: 1.0.0
Author: Progcube
Author URI: https://progcube.jp/
License: GPL v2 or later
Text Domain: web-course
*/

/* ==========================================================================
   変数・ベース
   ========================================================================== */
:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-accent: #f59e0b;
  --color-deadline: #dc2626;
  --color-bg: #f8fafc;
  --color-card: #ffffff;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --font-sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  --font-mono: "Consolas", "Monaco", "Andale Mono", "Ubuntu Mono", monospace;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.08);
  --shadow-lg: 0 4px 12px rgba(0,0,0,.1);
  --code-bg: #1e293b;
  --code-inline-bg: #e2e8f0;
  --code-text: #e2e8f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   レイアウト
   ========================================================================== */
.site-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* ==========================================================================
   ヘッダー
   ========================================================================== */
.site-header {
  background: var(--color-card);
  border-bottom: 1px solid #e2e8f0;
  padding: 1rem 1.5rem;
}

.site-header-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
}

.site-title a {
  color: var(--color-text);
}

.site-title a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.site-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.site-nav a {
  color: var(--color-text-muted);
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   カード（週次ブロック）
   ========================================================================== */
.weekly-card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--color-primary);
}

.weekly-card.current-week {
  border-left-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.weekly-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.weekly-card-title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
}

.weekly-card-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.deadline {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--color-deadline);
  font-weight: 600;
}

.weekly-card .content-section {
  margin-top: 1rem;
}

.weekly-card .content-section + .content-section {
  margin-top: 1.25rem;
}

.content-section-title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 0.5rem 0;
}

.weekly-card .entry-content,
.content-section-body {
  margin: 0;
  font-size: 0.9375rem;
}

.weekly-card .entry-content ul,
.content-section-body ul {
  margin: 0.5em 0 0 0;
  padding-left: 1.25em;
}

.weekly-card .entry-content ol,
.content-section-body ol {
  margin: 0.5em 0 0 0;
  padding-left: 1.5em;
}

/* ==========================================================================
   ページタイトル
   ========================================================================== */
.page-header {
  margin-bottom: 1.5rem;
}

.page-title {
  margin: 0 0 0.25rem 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.page-description {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   単一週ページ
   ========================================================================== */
.single-weekly .entry-header {
  margin-bottom: 1.5rem;
}

.single-weekly .entry-title {
  margin: 0 0 0.5rem 0;
  font-size: 1.375rem;
}

.single-weekly .entry-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.single-weekly .entry-content {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.single-weekly .content-block {
  margin-bottom: 1.5rem;
}

.single-weekly .content-block:last-child {
  margin-bottom: 0;
}

.single-weekly .content-block-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 0.5rem 0;
}

/* ==========================================================================
   アーカイブ（週一覧）
   ========================================================================== */
.weekly-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.weekly-list-item {
  margin-bottom: 0.75rem;
}

.weekly-list-item a {
  display: block;
  padding: 0.75rem 1rem;
  background: var(--color-card);
  border-radius: var(--radius);
  color: var(--color-text);
  box-shadow: var(--shadow);
  transition: box-shadow .2s, transform .2s;
}

.weekly-list-item a:hover {
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  transform: translateY(-1px);
}

.weekly-list-item .date {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* ==========================================================================
   フッター
   ========================================================================== */
.site-footer {
  margin-top: 2rem;
  padding: 1.5rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  border-top: 1px solid #e2e8f0;
  background: var(--color-card);
}

.site-footer p {
  margin: 0;
}

/* ==========================================================================
   ユーティリティ
   ========================================================================== */
.read-more {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}

.read-more:hover {
  text-decoration: none;
  color: var(--color-primary-dark);
}

.no-content {
  text-align: center;
  padding: 2rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   コード表示（code / pre）
   ========================================================================== */
/* インライン code */
.entry-content code,
.content-section-body code,
.weekly-card .entry-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--code-inline-bg);
  color: var(--color-text);
  padding: 0.2em 0.45em;
  border-radius: 4px;
  border: 1px solid #cbd5e1;
  word-break: break-all;
}

/* コードブロック（pre + code）*/
.entry-content pre,
.content-section-body pre,
.weekly-card .entry-content pre {
  margin: 1rem 0;
  padding: 1rem 1.25rem;
  background: var(--code-bg);
  color: var(--code-text);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  border-radius: var(--radius);
  overflow-x: auto;
  border: 1px solid #334155;
}

.entry-content pre code,
.content-section-body pre code,
.weekly-card .entry-content pre code {
  background: none;
  color: inherit;
  padding: 0;
  border: none;
  font-size: inherit;
  word-break: normal;
}

/* コピーボタン付きラッパー */
.code-block-wrap {
  position: relative;
  margin: 1rem 0;
}

.code-block-wrap pre {
  margin: 0;
  padding-top: 2.5rem;
}

.code-block-copy {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--code-bg);
  background: var(--code-text);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.2s, background 0.2s;
}

.code-block-copy:hover {
  background: #fff;
  opacity: 0.95;
}

.code-block-copy.copied {
  background: #22c55e;
  color: #fff;
}