/* ========================================
   東海古城研究会 - 共通スタイル v2
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho+B1:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@300;400;500;700&family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400&display=swap');

/* ---- カラーパレット & 変数 ---- */
:root {
  --color-primary:      #5c3d1e;
  --color-primary-dark: #3d2812;
  --color-accent:       #a8884d;
  --color-accent-light: #c4a574;
  --color-shu:          #9b3838;

  --color-text:         #2c2418;
  --color-text-light:   #6d6253;
  --color-text-muted:   #948876;

  --color-bg:           #faf7f0;
  --color-bg-dark:      #f0ebe0;
  --color-white:        #ffffff;

  --color-border:       #d5cdb8;
  --color-border-light: #e8e0cc;

  --font-serif: 'Shippori Mincho B1', 'Yu Mincho', '游明朝', 'YuMincho', serif;
  --font-sans:  'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --font-en:    'Cormorant Garamond', 'Times New Roman', serif;

  --radius:     4px;
  --shadow:     0 2px 12px rgba(60, 40, 18, 0.06);
  --shadow-lg:  0 8px 32px rgba(60, 40, 18, 0.12);

  --max-width: 1180px;
  --header-h:  72px;
}

/* ---- リセット & 基本 ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: radial-gradient(rgba(168, 136, 77, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0.02em;
  min-height: 100vh;
}

img { max-width: 100%; display: block; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--color-accent); }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 80px 0; }
@media (max-width: 768px) { .section { padding: 56px 0; } }

/* ========================================
   ヘッダー
   ======================================== */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 240, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text .name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--color-primary-dark);
  letter-spacing: 0.12em;
}

.logo-text .sub {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 0.72rem;
  color: var(--color-accent);
  letter-spacing: 0.2em;
  margin-top: 2px;
}

#main-nav ul {
  display: flex;
  gap: 32px;
  align-items: center;
}

#main-nav a {
  font-family: var(--font-serif);
  font-size: 0.94rem;
  color: var(--color-text);
  position: relative;
  padding: 6px 0;
  letter-spacing: 0.1em;
}

#main-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

#main-nav a:hover::after,
#main-nav a.active::after { width: 100%; }

#main-nav a.active {
  color: var(--color-primary-dark);
  font-weight: 700;
}

.hamburger {
  display: none;
  width: 36px;
  height: 36px;
  position: relative;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-primary-dark);
  margin: 5px auto;
  transition: 0.3s;
}

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 90;
}
.nav-overlay.show { display: block; }

@media (max-width: 820px) {
  .hamburger { display: block; }
  #main-nav {
    position: fixed;
    top: var(--header-h);
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: calc(100vh - var(--header-h));
    background: var(--color-bg);
    border-left: 1px solid var(--color-border);
    transition: right 0.3s ease;
    z-index: 95;
    overflow-y: auto;
  }
  #main-nav.open { right: 0; }
  #main-nav ul { flex-direction: column; gap: 0; padding: 20px 0; }
  #main-nav li { border-bottom: 1px dashed var(--color-border); width: 100%; }
  #main-nav a { display: block; padding: 18px 24px; }
}

/* ========================================
   ボタン
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

.btn-danger {
  background: transparent;
  color: var(--color-shu);
  border-color: var(--color-shu);
}
.btn-danger:hover {
  background: var(--color-shu);
  color: var(--color-white);
}

/* ========================================
   セクションタイトル
   ======================================== */
.wa-line {
  display: flex;
  align-items: center;
  margin-bottom: 40px;
}

.wa-line::before,
.wa-line::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-border), transparent);
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  color: var(--color-primary-dark);
  letter-spacing: 0.15em;
  text-align: center;
  margin: 0 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.section-title .en {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  font-weight: 500;
}

/* ========================================
   カード
   ======================================== */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ========================================
   ニュースリスト
   ======================================== */
.news-date {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.85rem;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  min-width: 140px;
  font-weight: 500;
}

.news-title {
  font-family: var(--font-serif);
  font-size: 0.96rem;
  color: var(--color-text);
}

.news-list li {
  padding: 14px 0;
  border-bottom: 1px dashed var(--color-border);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.news-list li:last-child { border-bottom: none; }

/* ========================================
   ヒーロー背景
   ======================================== */
#hero-bg {
  background:
    linear-gradient(to bottom, rgba(30, 18, 8, 0.45) 0%, rgba(30, 18, 8, 0.25) 50%, rgba(30, 18, 8, 0.7) 100%),
    url('../images/hero.svg') center/cover no-repeat,
    linear-gradient(135deg, #5c3d1e 0%, #3d2812 100%);
}

/* ========================================
   フッター
   ======================================== */
#site-footer {
  background: var(--color-primary-dark);
  color: rgba(250, 247, 240, 0.85);
  padding: 56px 24px 24px;
  margin-top: 80px;
  border-top: 4px solid var(--color-accent);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; gap: 30px; }
}

.footer-section h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 0.1em;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(168, 136, 77, 0.4);
}

.footer-section p,
.footer-section li {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  line-height: 1.95;
  color: rgba(250, 247, 240, 0.78);
}

.footer-section li { padding: 4px 0; }
.footer-section a { color: rgba(250, 247, 240, 0.85); }
.footer-section a:hover { color: var(--color-accent-light); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(250, 247, 240, 0.1);
  text-align: center;
  font-family: var(--font-en);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: rgba(250, 247, 240, 0.55);
}

/* ========================================
   ユーティリティ
   ======================================== */
.loading { color: var(--color-text-light); font-style: italic; }
.hidden { display: none !important; }

.fade-in { animation: fadeIn 0.7s ease-out both; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   ページヘッド & 報告ページ
   ======================================== */
.page-head {
  padding: 56px 24px 40px;
  background: linear-gradient(180deg, rgba(92, 61, 30, 0.05) 0%, transparent 100%);
  border-bottom: 1px solid var(--color-border);
}

.page-head-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.breadcrumb {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 14px;
  letter-spacing: 0.06em;
}

.breadcrumb a { color: var(--color-primary); }
.breadcrumb .sep { margin: 0 8px; color: var(--color-border); }

.page-title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--color-primary-dark);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.page-subtitle {
  font-family: var(--font-en);
  font-style: italic;
  color: var(--color-accent);
  letter-spacing: 0.18em;
  font-size: 0.92rem;
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
  padding: 0 24px;
  font-family: var(--font-serif);
}

.filter-bar .label {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-right: 6px;
}

.filter-btn {
  padding: 7px 18px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  font-family: var(--font-serif);
  font-size: 0.88rem;
  color: var(--color-text);
  letter-spacing: 0.06em;
  transition: all 0.2s ease;
  border-radius: var(--radius);
  cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.report-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 0 24px;
}

.report-list-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: all 0.3s ease;
  display: block;
  text-decoration: none;
  color: inherit;
}

.report-list-card:hover {
  box-shadow: var(--shadow);
  border-left-color: var(--color-shu);
  color: inherit;
  transform: translateX(4px);
}

.report-list-card .meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  font-size: 0.82rem;
}

.report-list-card .meta .date {
  font-family: var(--font-en);
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

.report-list-card .meta .loc {
  padding: 2px 10px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-text-light);
  font-size: 0.78rem;
}

.report-list-card h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary-dark);
  margin-bottom: 10px;
  line-height: 1.5;
}

.report-list-card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.85;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.report-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.report-detail-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  font-size: 0.88rem;
}

.report-detail-meta .date {
  font-family: var(--font-en);
  color: var(--color-accent);
  letter-spacing: 0.08em;
  font-weight: 500;
}

.report-detail-meta .loc {
  padding: 3px 12px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-text-light);
  font-size: 0.82rem;
  background: var(--color-white);
}

.report-detail-title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  color: var(--color-primary-dark);
  margin-bottom: 28px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--color-accent);
}

.report-detail-body {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 2.05;
  color: var(--color-text);
  white-space: pre-wrap;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.report-back {
  margin-top: 40px;
  text-align: center;
}

.empty-state {
  padding: 40px 20px;
  text-align: center;
  color: var(--color-text-light);
  font-family: var(--font-serif);
}

/* ========================================
   管理画面
   ======================================== */
.admin-body {
  background: var(--color-bg);
  min-height: 100vh;
}

.admin-login {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  background: var(--color-white);
  padding: 50px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius);
  border-top: 4px solid var(--color-accent);
}

.login-card h1 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-primary-dark);
  text-align: center;
  margin-bottom: 6px;
  letter-spacing: 0.1em;
}

.login-card .subtitle {
  text-align: center;
  font-family: var(--font-en);
  font-size: 0.82rem;
  color: var(--color-accent);
  letter-spacing: 0.22em;
  margin-bottom: 26px;
  font-style: italic;
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--color-primary-dark);
  margin-bottom: 6px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.form-group .required {
  color: var(--color-shu);
  font-size: 0.78rem;
  margin-left: 4px;
}

.form-group small {
  display: block;
  font-size: 0.78rem;
  color: var(--color-text-light);
  margin-top: 4px;
}

input[type="text"],
input[type="password"],
input[type="date"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 11px 14px;
  font-family: var(--font-sans);
  font-size: 0.96rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  transition: border-color 0.2s;
  border-radius: var(--radius);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
}

textarea {
  min-height: 140px;
  resize: vertical;
  font-family: var(--font-serif);
  line-height: 1.85;
}

.admin-error {
  background: rgba(155, 56, 56, 0.1);
  color: var(--color-shu);
  padding: 10px 14px;
  font-family: var(--font-serif);
  font-size: 0.88rem;
  border-radius: var(--radius);
  margin-bottom: 16px;
  text-align: center;
}

.admin-success {
  background: rgba(34, 100, 60, 0.1);
  color: #226040;
  padding: 10px 14px;
  font-family: var(--font-serif);
  font-size: 0.88rem;
  border-radius: var(--radius);
  margin-bottom: 16px;
  text-align: center;
}

.admin-header {
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.admin-header h1 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  color: var(--color-white);
}

.admin-header-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-header-actions a,
.admin-header-actions button {
  font-family: var(--font-serif);
  font-size: 0.84rem;
  padding: 7px 14px;
  border: 1px solid rgba(250, 247, 240, 0.4);
  color: var(--color-white);
  background: transparent;
  letter-spacing: 0.06em;
  transition: all 0.2s;
  cursor: pointer;
  border-radius: var(--radius);
  text-decoration: none;
}

.admin-header-actions a:hover,
.admin-header-actions button:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary-dark);
}

.admin-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 24px 56px;
}

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.tab {
  padding: 13px 22px;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-text-light);
  letter-spacing: 0.06em;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s;
}

.tab:hover { color: var(--color-primary-dark); }

.tab.active {
  color: var(--color-primary-dark);
  border-bottom-color: var(--color-accent);
  font-weight: 700;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.panel-section {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.panel-section h2 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-primary-dark);
  margin-bottom: 20px;
  letter-spacing: 0.06em;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
}

.toggle {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 26px;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--color-text-light);
  border-radius: 26px;
  transition: 0.3s;
}

.slider::before {
  content: '';
  position: absolute;
  height: 20px; width: 20px;
  left: 3px; bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: 0.3s;
}

input:checked + .slider { background: #226040; }
input:checked + .slider::before { transform: translateX(24px); }

.toggle-label {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--color-text);
}

.item-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.item-row {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 18px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
}

@media (max-width: 640px) {
  .item-row { grid-template-columns: 1fr; }
}

.item-row-info h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--color-primary-dark);
  margin-bottom: 3px;
}

.item-row-meta {
  font-family: var(--font-en);
  font-size: 0.8rem;
  color: var(--color-text-light);
  letter-spacing: 0.06em;
}

.item-row-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-family: var(--font-serif);
  border-radius: 2px;
  margin-left: 6px;
  letter-spacing: 0.04em;
}

.badge.public { background: #d4ecd9; color: #226040; }
.badge.private { background: #ebebeb; color: var(--color-text-light); }

.help-block {
  background: rgba(168, 136, 77, 0.06);
  border-left: 3px solid var(--color-accent);
  padding: 18px 24px;
  font-family: var(--font-serif);
  font-size: 0.92rem;
  line-height: 2;
  color: var(--color-text);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.help-block strong { color: var(--color-primary-dark); font-weight: 700; }
.help-block ol { padding-left: 22px; margin: 8px 0; }
.help-block li { margin-bottom: 6px; }
.help-block code {
  background: var(--color-bg-dark);
  padding: 2px 6px;
  border-radius: 2px;
  font-size: 0.86em;
  font-family: monospace;
}