/* =========================================================
   Y-Scrapper — Elegant Beige & Navy Theme
   Based on game_dev_handover.md Design System
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=Noto+Serif+JP:wght@400;500;600;700&display=swap');

:root {
  /* Color Palette from game_dev_handover.md */
  --color-bg:         #F8F7F4;  /* ページ背景 */
  --color-surface:    #FFFFFF;  /* カード・コンポーネント背景 */
  --color-primary:    #1A2744;  /* ダークネイビー / ボタン背景 / 見出し */
  --color-accent:     #C9A84C;  /* ゴールド / 選択中 / ハイライト */
  --color-correct:    #2D6A4F;  /* 正解・成功 */
  --color-wrong:      #C1440E;  /* 不正解・エラー */
  --color-text-main:  #1A2744;  /* 本文テキスト */
  --color-text-sub:   #6B7280;  /* サブテキスト・説明 */
  --color-border:     #E5E2DB;  /* ボーダー全般 */

  /* Mapping to existing variables for compatibility */
  --primary-color: var(--color-primary);
  --primary-hover: #2d3f6b;
  --primary-grad: linear-gradient(135deg, var(--color-primary) 0%, #2d3f6b 100%);
  --primary-grad-hover: linear-gradient(135deg, #2d3f6b 0%, #3e568f 100%);
  
  --accent-color: var(--color-accent);
  --accent-grad: linear-gradient(135deg, var(--color-accent) 0%, #a88a3b 100%);
  
  --success-color: var(--color-correct);
  --danger-color: var(--color-wrong);
  --warning-color: var(--color-accent);
  --info-color: #3b82f6;

  /* Typography */
  --font-serif: 'Noto Serif JP', Georgia, serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  
  /* Radii (Elegant & Gentle) */
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-input: 12px;
  
  /* Soft & Elegant Shadows */
  --shadow-premium: 0 4px 20px -5px rgba(26, 39, 68, 0.05), 0 2px 4px rgba(26, 39, 68, 0.02);
  --shadow-hover: 0 12px 24px -8px rgba(26, 39, 68, 0.12), 0 2px 8px rgba(26, 39, 68, 0.04);
  
  --ease: cubic-bezier(0.25, 1, 0.5, 1);

  /* Fonts & Line height (Adjustable by data-font-size) */
  --fs-body: 15px;
  --fs-question: 18px;
  --fs-heading: 22px;
  --fs-small: 12px;
  --lh: 1.7;
}

[data-font-size="medium"] {
  --fs-body: 17px;
  --fs-question: 21px;
  --fs-heading: 25px;
  --fs-small: 14px;
  --lh: 1.8;
}
[data-font-size="large"] {
  --fs-body: 20px;
  --fs-question: 24px;
  --fs-heading: 28px;
  --fs-small: 16px;
  --lh: 1.9;
}
[data-font-size="xlarge"] {
  --fs-body: 24px;
  --fs-question: 28px;
  --fs-heading: 32px;
  --fs-small: 18px;
  --lh: 2.0;
}

/* Theme definitions */
[data-bs-theme="light"], :root:not([data-bs-theme="dark"]) {
  --app-bg: var(--color-bg);
  --app-text: var(--color-text-main);
  --app-card: var(--color-surface);
  --app-border: var(--color-border);
  --app-muted: var(--color-text-sub);
  --app-subtle: #f0ede6;
  --section-title: var(--color-primary);
  --primary-tint: rgba(26, 39, 68, 0.06);

  --bs-body-bg: var(--color-bg);
  --bs-body-color: var(--color-text-main);
  --bs-border-color: var(--color-border);
  --bs-link-color: var(--color-primary);
  --bs-link-hover-color: var(--primary-hover);
}

[data-bs-theme="dark"] {
  --app-bg: #0f1624;
  --app-text: #e2e8f0;
  --app-card: #182235;
  --app-border: #2a374e;
  --app-muted: #94a3b8;
  --app-subtle: #1e293b;
  --section-title: #f1f5f9;
  --primary-tint: rgba(201, 168, 76, 0.1);

  --bs-body-bg: #0f1624;
  --bs-body-color: #e2e8f0;
  --bs-border-color: #2a374e;
  --bs-link-color: var(--color-accent);
  --bs-link-hover-color: #dfc16c;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  background: var(--app-bg) !important;
  color: var(--app-text) !important;
  font-family: var(--font-sans);
  font-size: var(--fs-body) !important;
  line-height: var(--lh) !important;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  transition: background-color 0.4s, color 0.4s;
}

body.container {
  max-width: 950px;
  padding: 3rem 1.5rem !important;
}

a {
  color: var(--bs-link-color);
  text-decoration: none;
  transition: all 0.25s var(--ease);
}
a:hover {
  color: var(--bs-link-hover-color);
  opacity: 0.9;
}

/* ---------- Headings ---------- */
h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--app-text);
}

h1, .h1 {
  font-size: var(--fs-heading) !important;
  color: var(--color-primary) !important;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

h1 i, h2 i, h3 i {
  color: var(--color-accent) !important;
  filter: drop-shadow(0 2px 4px rgba(201, 168, 76, 0.2));
}

.section-title {
  font-weight: 700;
  color: var(--section-title);
  margin-bottom: 0.75rem;
}

hr {
  border: 0;
  height: 1px;
  background: var(--app-border);
  opacity: 1;
  margin: 2rem 0;
}

.text-muted {
  color: var(--app-muted) !important;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  font-family: var(--font-sans);
  font-weight: 600;
  border-radius: var(--radius-btn);
  padding: 0.65rem 1.5rem;
  transition: all 0.3s var(--ease);
  box-shadow: 0 4px 10px rgba(26, 39, 68, 0.05);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-primary) !important;
  border: none !important;
  color: #fff !important;
}
.btn-primary:hover, .btn-primary:focus, .btn-primary:active {
  background: var(--primary-hover) !important;
  box-shadow: 0 8px 20px rgba(26, 39, 68, 0.25) !important;
}

.btn-success {
  background: var(--color-accent) !important;
  border: none !important;
  color: #fff !important;
}
.btn-success:hover, .btn-success:focus, .btn-success:active {
  opacity: 0.95;
  box-shadow: 0 8px 20px rgba(201, 168, 76, 0.25) !important;
}

.btn-danger {
  background: var(--danger-color) !important;
  border: none !important;
  color: #fff !important;
}
.btn-danger:hover, .btn-danger:focus, .btn-danger:active {
  background: #a83607 !important;
  box-shadow: 0 8px 20px rgba(193, 68, 14, 0.25) !important;
}

.btn-warning {
  background: var(--warning-color) !important;
  border: none !important;
  color: #fff !important;
}
.btn-warning:hover, .btn-warning:focus, .btn-warning:active {
  background: #b0913c !important;
  box-shadow: 0 8px 20px rgba(201, 168, 76, 0.25) !important;
}

.btn-secondary {
  background: var(--app-subtle) !important;
  border: 1px solid var(--app-border) !important;
  color: var(--app-text) !important;
}
.btn-secondary:hover, .btn-secondary:focus, .btn-secondary:active {
  background: var(--app-border) !important;
  border-color: var(--app-border) !important;
}

/* Outline Buttons */
.btn-outline-primary, .btn-outline-secondary, .btn-outline-info, .btn-outline-dark {
  background: transparent;
  border: 1.5px solid var(--primary-color);
  color: var(--primary-color);
}
.btn-outline-primary:hover, .btn-outline-secondary:hover, .btn-outline-info:hover, .btn-outline-dark:hover {
  background: var(--color-primary);
  border-color: transparent;
  color: #fff !important;
  box-shadow: 0 6px 15px rgba(26, 39, 68, 0.2);
}

.btn-outline-secondary {
  border-color: var(--app-muted);
  color: var(--app-muted);
}
.btn-outline-secondary:hover {
  background: var(--app-subtle);
  border-color: var(--app-muted);
  color: var(--app-text) !important;
  box-shadow: none;
}

.btn-outline-success {
  background: transparent;
  border: 1.5px solid var(--accent-color);
  color: var(--accent-color);
}
.btn-outline-success:hover {
  background: var(--color-accent);
  border-color: transparent;
  color: #fff !important;
  box-shadow: 0 6px 15px rgba(201, 168, 76, 0.2);
}

.btn-outline-danger {
  background: transparent !important;
  border: 1.5px solid rgba(193, 68, 14, 0.4) !important;
  color: var(--danger-color) !important;
  transition: all 0.25s var(--ease) !important;
}
.btn-outline-danger:hover {
  background: var(--danger-color) !important;
  border-color: transparent !important;
  color: #fff !important;
  box-shadow: 0 6px 15px rgba(193, 68, 14, 0.2) !important;
}

.btn-outline-info {
  border-color: #3b82f6;
  color: #3b82f6;
}
.btn-outline-info:hover {
  background: #3b82f6;
  color: #fff !important;
}

.btn:focus, .btn:focus-visible {
  box-shadow: 0 0 0 4px rgba(26, 39, 68, 0.15);
}

/* =========================================================
   Cards & Elegant List Groups
   ========================================================= */
.card {
  background: var(--app-card) !important;
  border: 1px solid var(--app-border) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--shadow-premium) !important;
  overflow: hidden;
  transition: all 0.3s var(--ease) !important;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover) !important;
  border-color: rgba(201, 168, 76, 0.3) !important;
}

.list-group {
  background: transparent !important;
  border: none !important;
  gap: 16px;
  border-radius: 0;
}

.list-group-item {
  background: var(--app-card) !important;
  border: 1px solid var(--app-border) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--shadow-premium) !important;
  margin-bottom: 0 !important;
  padding: 1.5rem !important;
  transition: all 0.3s var(--ease) !important;
}

.list-group-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover) !important;
  border-color: rgba(201, 168, 76, 0.3) !important;
  background: var(--app-card) !important;
}

.list-group-item .fw-semibold, .list-group-item a.fw-semibold {
  color: var(--app-text) !important;
  font-family: var(--font-sans);
  font-weight: 700 !important;
  font-size: 1.15rem;
}
.list-group-item a.fw-semibold:hover {
  color: var(--color-accent) !important;
}

/* =========================================================
   Badges
   ========================================================= */
.badge {
  font-weight: 600;
  font-size: 0.75rem;
  padding: 0.4em 0.8em;
  border-radius: 8px;
  letter-spacing: 0.02em;
}
.badge.bg-primary {
  background: var(--primary-tint) !important;
  color: var(--color-primary) !important;
  border: 1px solid rgba(26, 39, 68, 0.2);
}
.badge.bg-secondary {
  background: var(--app-subtle) !important;
  color: var(--app-muted) !important;
  border: 1px solid var(--app-border);
}
.badge.bg-success {
  background: var(--success-color) !important;
  color: #fff !important;
}
.badge.bg-danger {
  background: var(--danger-color) !important;
  color: #fff !important;
}
.badge.bg-warning {
  background: var(--warning-color) !important;
  color: #fff !important;
}

/* =========================================================
   Navigation Tabs
   ========================================================= */
.nav-tabs {
  border-bottom: none;
  background: var(--app-subtle);
  padding: 6px;
  border-radius: 18px;
  display: inline-flex;
  gap: 4px;
  margin-bottom: 2rem !important;
}

.nav-tabs .nav-link {
  color: var(--app-muted);
  border: none !important;
  border-radius: 12px !important;
  padding: 0.65rem 1.6rem;
  font-weight: 600;
  background: transparent;
  transition: all 0.2s var(--ease);
}

.nav-tabs .nav-link:hover {
  color: var(--color-primary);
}

.nav-tabs .nav-link.active {
  color: var(--color-primary) !important;
  background: var(--app-card) !important;
  box-shadow: 0 4px 15px rgba(26, 39, 68, 0.05) !important;
}

/* =========================================================
   Pagination
   ========================================================= */
.pagination {
  gap: 8px;
}
.page-link {
  background: var(--app-card);
  border: 1.5px solid var(--app-border);
  color: var(--app-text);
  border-radius: 12px !important;
  padding: 0.65rem 1.1rem;
  font-weight: 600;
  transition: all 0.25s var(--ease);
}
.page-link:hover {
  background: var(--primary-tint);
  border-color: var(--primary-color);
  color: var(--primary-color);
}
.page-item.active .page-link {
  background: var(--color-primary) !important;
  border: none !important;
  color: #fff;
  box-shadow: 0 4px 15px rgba(26, 39, 68, 0.2);
}
.page-item.disabled .page-link {
  background: transparent;
  border-color: var(--app-border);
  color: var(--app-muted);
  opacity: 0.5;
}

.yahoo-pagination {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 20px 0;
  justify-content: center;
  align-items: center;
  gap: 4px;
}
.yahoo-pagination li {
  margin: 0;
}
.yahoo-pagination .page-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  text-decoration: none;
  color: var(--app-text);
  border: 1.5px solid var(--app-border);
  border-radius: 12px;
  background-color: var(--app-card);
  font-size: 14px;
  min-width: 40px;
  justify-content: center;
  transition: all 0.25s var(--ease);
}
.yahoo-pagination .page-link:hover:not(.disabled) {
  background-color: var(--primary-tint);
  border-color: var(--primary-color);
  color: var(--primary-color);
}
.yahoo-pagination .current {
  background: var(--color-primary) !important;
  color: #fff !important;
  border: 1.5px solid var(--color-primary) !important;
  box-shadow: 0 4px 15px rgba(26, 39, 68, 0.2);
}
.yahoo-pagination .disabled {
  color: var(--app-muted);
  background-color: transparent;
  border-color: var(--app-border);
  cursor: not-allowed;
  opacity: .5;
}
.yahoo-pagination .arrow-icon {
  width: 14px;
  height: 14px;
  margin: 0 4px;
}

/* =========================================================
   Forms & Suggestions
   ========================================================= */
.form-label {
  color: var(--app-text);
  font-weight: 600;
  font-size: 0.95rem;
}
.form-control, .form-select, textarea.form-control {
  background: var(--app-card) !important;
  border: 1.5px solid var(--app-border) !important;
  color: var(--app-text) !important;
  border-radius: var(--radius-input) !important;
  padding: 0.75rem 1.25rem;
  transition: all 0.25s var(--ease);
}
.form-control::placeholder {
  color: var(--app-muted);
  opacity: 0.6;
}
.form-control:focus, .form-select:focus, textarea.form-control:focus {
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 4px rgba(26, 39, 68, 0.1) !important;
}

#search-suggestions.dropdown-menu {
  background: var(--app-card) !important;
  border: 1px solid var(--app-border) !important;
  border-radius: var(--radius-card);
  box-shadow: 0 15px 40px rgba(26, 39, 68, 0.08);
  padding: 10px;
  margin-top: 8px;
}
#search-suggestions .dropdown-item {
  border-radius: 12px;
  padding: 0.75rem 1.25rem;
  transition: all 0.2s var(--ease);
}
#search-suggestions .dropdown-item:hover {
  background-color: var(--primary-tint);
}

/* =========================================================
   Alerts, Toast & Modals
   ========================================================= */
.alert {
  border-radius: 16px;
  border: 1.5px solid var(--app-border);
  border-left: 6px solid var(--color-primary);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-premium);
}
.alert-success { border-left-color: var(--success-color); }
.alert-danger { border-left-color: var(--danger-color); }
.alert-warning { border-left-color: var(--warning-color); }
.alert-info { border-left-color: var(--info-color); }

.toast {
  background: var(--app-card);
  border: 1px solid var(--app-border);
  color: var(--app-text);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}
.toast-header {
  background: var(--app-subtle);
  color: var(--app-text);
  border-bottom: 1px solid var(--app-border);
  font-weight: 600;
}

.modal-content {
  background: var(--app-card);
  border: 1px solid var(--app-border);
  color: var(--app-text);
  border-radius: var(--radius-card);
  box-shadow: 0 25px 60px rgba(26, 39, 68, 0.15);
}
.modal-header, .modal-footer {
  border-color: var(--app-border);
}
.modal-title {
  font-weight: 700;
}
[data-bs-theme="dark"] .btn-close {
  filter: invert(1) grayscale(100%) brightness(200%);
}

/* =========================================================
   Images & Thumbnails
   ========================================================= */
img.rounded, .img-fluid {
  border-radius: 16px;
}
.article-thumbnail {
  border: 1px solid var(--app-border);
  border-radius: 12px;
  transition: transform 0.4s var(--ease);
  box-shadow: 0 5px 15px rgba(26, 39, 68, 0.03);
}
.list-group-item:hover .article-thumbnail {
  transform: scale(1.04);
}

/* =========================================================
   Detail page components styling
   ========================================================= */
.copy-section {
  border: 1.5px solid var(--app-border) !important;
  border-radius: var(--radius-card) !important;
  background: var(--app-card) !important;
  box-shadow: var(--shadow-premium) !important;
}
.copy-section-header {
  background: var(--app-subtle) !important;
  border-bottom: 1.5px solid var(--app-border) !important;
  border-radius: 15px 15px 0 0 !important;
  font-weight: 600;
}
.copy-section-content {
  color: var(--app-text);
  line-height: 1.7;
}

/* Hashtags design */
.hashtag-badge {
  display: inline-flex;
  align-items: center;
  background: #FAEEDA !important;
  border: 1.5px solid rgba(201, 168, 76, 0.25) !important;
  border-radius: 10px !important;
  padding: 4px 12px !important;
  transition: all 0.2s var(--ease);
}
.hashtag-badge a {
  color: #854F0B !important;
  font-weight: 600;
}
.hashtag-badge a:hover {
  color: var(--color-accent) !important;
}
.hashtag-close {
  color: var(--app-muted) !important;
  margin-left: 6px;
  font-size: 0.8rem;
  transition: color 0.2s;
}
.hashtag-close:hover {
  color: var(--danger-color) !important;
}
.btn-hashtag-add {
  background: transparent !important;
  border: 1.5px solid var(--color-accent) !important;
  color: var(--color-accent) !important;
  border-radius: 10px !important;
}
.btn-hashtag-add:hover {
  background: var(--color-accent) !important;
  color: #fff !important;
}

/* Tag chips */
.tag-chip {
  display: inline-block;
  background: #FAEEDA !important;
  border: 1.5px solid rgba(201, 168, 76, 0.25) !important;
  color: #854F0B !important;
  border-radius: 10px !important;
  transition: all 0.25s var(--ease);
}
.tag-chip:hover {
  color: #fff !important;
  background: var(--color-accent) !important;
  border-color: transparent !important;
  box-shadow: 0 4px 15px rgba(201, 168, 76, 0.15);
}

/* =========================================================
   Brand Bar (Elegant Navy & Gold)
   ========================================================= */
.brand-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 2.5rem;
}
.brand-bar .mark {
  width: 42px;
  height: 42px;
  flex: none;
  border-radius: 50%;
  background: var(--color-primary);
  display: grid;
  place-items: center;
  box-shadow: 0 6px 15px rgba(26, 39, 68, 0.2);
}
.brand-bar .mark span {
  color: #fff;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.3rem;
}
.brand-bar .brand-name {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 1.05rem;
  color: var(--color-primary);
  text-transform: uppercase;
}

/* 右上固定ボタン群 (フォントサイズ切り替え) */
#font-size-ctrl {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 1000;
  display: flex;
  gap: 4px;
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: 10px;
  padding: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}
.fs-btn {
  padding: 4px 8px;
  font-size: 12px;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--color-text-sub);
  cursor: pointer;
}
.fs-btn.active {
  background: var(--color-accent);
  color: #fff;
  font-weight: 500;
}

/* =========================================================
   Comment Markdown Styling
   ========================================================= */
.comment-content p:last-child {
  margin-bottom: 0;
}

.comment-content p {
  margin-bottom: 0.5rem;
}

.comment-content ul,
.comment-content ol {
  margin-bottom: 0.5rem;
  padding-left: 1.25rem;
}

.comment-content code {
  background-color: rgba(125, 125, 125, 0.15);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  font-size: 0.875em;
  font-family: monospace;
}

.comment-content pre {
  background-color: rgba(0, 0, 0, 0.2);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  overflow-x: auto;
  margin-bottom: 0.5rem;
}

.comment-content pre code {
  background-color: transparent;
  padding: 0;
}

.comment-content blockquote {
  border-left: 3px solid var(--color-accent, #C9A84C);
  margin: 0.5rem 0;
  padding-left: 0.75rem;
  opacity: 0.85;
}

.comment-content table {
  width: 100%;
  margin-bottom: 0.5rem;
  border-collapse: collapse;
}

.comment-content th,
.comment-content td {
  border: 1px solid var(--color-border, #E5E2DB);
  padding: 0.25rem 0.5rem;
}