/* =============================================================
   ArticleStyler Design System v3.1
   ============================================================= */

:root {
  /* プライマリ — 統一刺し色 #00a8e5 */
  --as-color-primary: #00a8e5;
  --as-color-primary-light: #e6f5fc;
  --as-color-primary-dark: #0088be;
  --as-color-primary-pale: #f0f9ff;

  /* セマンティック */
  --as-color-danger: #e74c3c;
  --as-color-danger-light: #fdf0ef;
  --as-color-danger-border: #f5aca3;
  --as-color-danger-pale: #fef5f4;
  --as-color-success: #2ecc71;
  --as-color-success-light: #eefbf3;
  --as-color-warning: #f39c12;

  /* グレースケール */
  --as-color-gray-50: #fafafa;
  --as-color-gray-100: #f5f5f5;
  --as-color-gray-200: #eeeeee;
  --as-color-gray-300: #e0e0e0;
  --as-color-gray-400: #bdbdbd;
  --as-color-gray-500: #9e9e9e;
  --as-color-gray-600: #757575;
  --as-color-gray-700: #616161;
  --as-color-gray-800: #424242;
  --as-color-gray-900: #212121;

  /* マーカー */
  --as-marker-color: #fff9c4;
  --as-marker-color-strong: #ffee58;

  /* ボーダー半径 */
  --as-radius-sm: 3px;
  --as-radius: 5px;
  --as-radius-lg: 8px;
  --as-radius-xl: 12px;

  /* シャドウ */
  --as-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --as-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  --as-shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.12);
}

/* =============================================================
   HEADINGS — 刺し色すべて #00a8e5
   ============================================================= */

.as-h2 {
  position: relative;
  padding: 0.7em 1em;
  margin: 2.5em 0 1.5em;
  color: var(--as-color-gray-800);
  background: var(--as-color-primary-light);
  border: none;
  border-radius: var(--as-radius-lg);
  font-size: 1.4em;
  font-weight: 700;
  line-height: 1.5;
}

.as-h3 {
  position: relative;
  padding: 0.3em 0 0.3em 0.9em;
  margin: 2em 0 1.25em;
  border-left: solid 4px var(--as-color-primary);
  font-size: 1.25em;
  font-weight: 700;
  line-height: 1.5;
  color: var(--as-color-gray-800);
}

.as-h4 {
  padding: 0.3em 0 0.3em 0.8em;
  margin: 1.75em 0 1em;
  border-left: solid 4px var(--as-color-primary);
  font-size: 1.15em;
  font-weight: 700;
  line-height: 1.4;
  color: var(--as-color-gray-800);
}

.as-h5 {
  position: relative;
  padding-bottom: 0.4em;
  margin: 1.5em 0 0.75em;
  font-size: 1.05em;
  font-weight: 700;
  line-height: 1.4;
  color: var(--as-color-gray-700);
}

.as-h5::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  display: inline-block;
  width: 40px;
  height: 3px;
  background: var(--as-color-primary);
  border-radius: 2px;
}

/* =============================================================
   BOXES
   ============================================================= */

[class*="as-box-"] {
  position: relative;
  margin: 2em 0;
  line-height: 1.8;
  font-size: 0.95em;
}

[class*="as-box-"] p {
  margin: 0;
  padding: 0;
}

[class*="as-box-"] p + p {
  margin-top: 0.75em;
}

.as-box-title {
  display: block;
  font-weight: 700;
  font-size: 0.9em;
  letter-spacing: 0.08em;
  margin-bottom: 0.6em;
}

/* --- POINT --- */
.as-box-point {
  background: var(--as-color-primary-pale);
  border-radius: var(--as-radius-xl);
  overflow: hidden;
  padding: 0;
}

.as-box-point .as-box-title {
  display: flex;
  align-items: center;
  gap: 0.5em;
  background: transparent;
  color: var(--as-color-primary-dark);
  padding: 0.9em 1.25em 0;
  margin-bottom: 0;
  font-size: 1em;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.as-box-point .as-box-title::before {
  content: "💡";
  font-size: 1.1em;
  flex-shrink: 0;
}

.as-box-point .as-box-body,
.as-box-point > p {
  padding: 0.75em 1.25em 1em;
}

/* --- 注意 --- */
.as-box-warning {
  background: var(--as-color-danger-pale);
  border-radius: var(--as-radius-xl);
  padding: 1em 1.25em;
  display: flex;
  align-items: flex-start;
  gap: 0.6em;
}

.as-box-warning::before {
  content: "!";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5em;
  height: 1.5em;
  min-width: 1.5em;
  border-radius: 50%;
  background: var(--as-color-danger);
  color: #fff;
  font-size: 0.85em;
  font-weight: 700;
  line-height: 1;
  margin-top: 0.15em;
  flex-shrink: 0;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
}

.as-box-warning .as-box-title {
  display: none;
}

.as-box-warning .as-box-body,
.as-box-warning > p {
  flex: 1;
  padding: 0;
  margin: 0;
}

/* --- 説明 --- */
.as-box-explain {
  border-radius: var(--as-radius-lg);
  overflow: hidden;
  border: 1.5px solid var(--as-color-primary);
  padding: 0;
  background: #fff;
}

.as-box-explain .as-box-title {
  display: flex;
  align-items: center;
  gap: 0.5em;
  background: var(--as-color-primary);
  color: #fff;
  padding: 0.6em 1em;
  margin: 0;
  font-size: 0.9em;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 0;
}

.as-box-explain .as-box-title::before {
  content: "❓";
  font-size: 1em;
  flex-shrink: 0;
}

.as-box-explain .as-box-body,
.as-box-explain > p:not(.as-box-title) {
  padding: 1em 1.25em;
}

/* --- 用語解説 --- */
.as-box-term {
  background: var(--as-color-gray-50);
  border-radius: var(--as-radius);
  box-shadow: var(--as-shadow);
  overflow: hidden;
  padding: 0;
}

.as-box-term .as-box-title {
  display: block;
  background: var(--as-color-gray-700);
  color: #fff;
  padding: 0.5em 1em;
  margin-bottom: 0;
  font-size: 0.85em;
  letter-spacing: 0.1em;
  border-radius: 0;
}

.as-box-term .as-box-body,
.as-box-term > p:not(.as-box-title) {
  padding: 1em 1.25em;
}

/* --- グレー汎用 --- */
.as-box-gray {
  padding: 1.25em 1.5em;
  background: var(--as-color-gray-100);
  border-radius: var(--as-radius-lg);
  box-shadow: var(--as-shadow-sm);
}

/* =============================================================
   TABLE
   ============================================================= */

.as-table-wrap {
  overflow-x: auto;
  margin: 2em 0;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--as-radius);
  box-shadow: var(--as-shadow);
}

.as-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.925em;
  line-height: 1.6;
  background: #fff;
}

.as-table thead th {
  background: var(--as-color-primary-dark);
  color: #fff;
  font-weight: 700;
  font-size: 0.9em;
  padding: 0.85em 1.1em;
  text-align: left;
  white-space: nowrap;
  letter-spacing: 0.03em;
}

.as-table tbody td {
  padding: 0.75em 1.1em;
  border-bottom: 1px solid var(--as-color-gray-200);
  vertical-align: top;
  color: var(--as-color-gray-800);
}

.as-table tbody tr:nth-child(even) {
  background: var(--as-color-gray-50);
}

.as-table tbody tr:hover {
  background: var(--as-color-primary-light);
  transition: background 0.15s ease;
}

.as-table tbody td:first-child {
  font-weight: 600;
  color: var(--as-color-gray-900);
}

/* =============================================================
   LISTS
   ============================================================= */

.as-list-dot,
.as-list-check,
.as-list-caution {
  list-style: none;
  padding-left: 0;
  margin: 1.5em 0;
}

.as-list-dot li,
.as-list-check li,
.as-list-caution li {
  position: relative;
  padding: 0.4em 0 0.4em 1.75em;
  line-height: 1.7;
  border-bottom: 1px dashed var(--as-color-gray-200);
}

.as-list-dot li:last-child,
.as-list-check li:last-child,
.as-list-caution li:last-child {
  border-bottom: none;
}

.as-list-dot li::before {
  content: "";
  position: absolute;
  left: 0.3em;
  top: 0.95em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--as-color-primary);
}

.as-list-check li::before {
  content: "✔";
  position: absolute;
  left: 0;
  top: 0.35em;
  color: var(--as-color-success);
  font-size: 1em;
  font-weight: 700;
}

.as-list-caution li::before {
  content: "▲";
  position: absolute;
  left: 0;
  top: 0.45em;
  color: var(--as-color-warning);
  font-size: 0.75em;
  font-weight: 700;
}

.as-list-num {
  list-style: none;
  padding-left: 0;
  margin: 1.5em 0;
  counter-reset: as-counter;
}

.as-list-num li {
  position: relative;
  padding: 0.4em 0 0.4em 2.5em;
  line-height: 1.7;
  counter-increment: as-counter;
  border-bottom: 1px dashed var(--as-color-gray-200);
}

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

.as-list-num li::before {
  content: counter(as-counter);
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 1.7em;
  height: 1.7em;
  border-radius: 50%;
  background: var(--as-color-primary);
  color: #fff;
  font-size: 0.8em;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

/* =============================================================
   BLOCKQUOTE
   ============================================================= */

.as-blockquote {
  position: relative;
  margin: 2em 0;
  padding: 1.5em 1.5em 1.25em 2.5em;
  background: var(--as-color-gray-50);
  border-left: 5px solid var(--as-color-gray-400);
  border-radius: 0 var(--as-radius-lg) var(--as-radius-lg) 0;
  box-shadow: var(--as-shadow-sm);
  color: var(--as-color-gray-700);
  font-size: 0.95em;
  line-height: 1.9;
}

.as-blockquote::before {
  content: "\201C";
  position: absolute;
  top: 0.1em;
  left: 0.4em;
  font-size: 3.5em;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--as-color-gray-300);
  line-height: 1;
}

.as-blockquote p { margin: 0; }
.as-blockquote p + p { margin-top: 0.75em; }

.as-blockquote cite {
  display: block;
  margin-top: 0.8em;
  font-size: 0.85em;
  font-style: normal;
  color: var(--as-color-gray-500);
  text-align: right;
}

.as-blockquote cite::before { content: "— "; }

/* =============================================================
   MARKER
   ============================================================= */

.as-marker {
  background: linear-gradient(transparent 55%, var(--as-marker-color) 55%);
  padding: 0 0.15em;
  font-weight: inherit;
}

.as-marker-strong {
  background: linear-gradient(transparent 40%, var(--as-marker-color-strong) 40%);
  padding: 0 0.15em;
  font-weight: inherit;
}

/* =============================================================
   BUTTONS
   ============================================================= */

.as-btn-primary,
.as-btn-secondary,
.as-btn-text {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  transition: all 0.25s ease;
  cursor: pointer;
  box-sizing: border-box;
}

.as-btn-primary {
  padding: 0.8em 2.5em;
  background: var(--as-color-primary);
  color: #fff;
  border-radius: 50px;
  font-size: 1em;
  text-align: center;
  box-shadow: var(--as-shadow);
  border: none;
  letter-spacing: 0.05em;
}

.as-btn-primary:hover {
  background: var(--as-color-primary-dark);
  color: #fff;
  text-decoration: none;
  box-shadow: var(--as-shadow-lg);
  transform: translateY(-1px);
}

.as-btn-primary::after { content: " ›"; font-size: 1.1em; }

.as-btn-secondary {
  padding: 0.75em 2.25em;
  background: transparent;
  color: var(--as-color-primary);
  border: 2px solid var(--as-color-primary);
  border-radius: 50px;
  font-size: 1em;
  text-align: center;
}

.as-btn-secondary:hover {
  background: var(--as-color-primary);
  color: #fff;
  text-decoration: none;
  box-shadow: var(--as-shadow);
}

.as-btn-text {
  color: var(--as-color-primary-dark);
  font-size: 0.95em;
  padding: 0;
  border: none;
  background: none;
  border-bottom: 1px solid var(--as-color-primary);
  padding-bottom: 2px;
}

.as-btn-text:hover {
  color: var(--as-color-primary);
  border-bottom-color: transparent;
  text-decoration: none;
}

.as-btn-text::after { content: " →"; }

/* =============================================================
   HR
   ============================================================= */

.as-hr {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--as-color-gray-300), transparent);
  margin: 2.5em 0;
}

/* =============================================================
   RESPONSIVE
   ============================================================= */

@media (max-width: 768px) {
  .as-h2 { font-size: 1.25em; padding: 0.6em 0.8em; }
  .as-h3 { font-size: 1.1em; }
  .as-h4 { font-size: 1.05em; }
  [class*="as-box-"] { margin: 1.5em 0; }
  .as-table { font-size: 0.85em; }
  .as-table thead th, .as-table tbody td { padding: 0.6em 0.75em; }
  .as-blockquote { padding: 1.25em 1.25em 1em 2em; }
  .as-blockquote::before { font-size: 2.5em; }
  .as-btn-primary, .as-btn-secondary { display: block; text-align: center; padding: 0.75em 1.5em; }
}

/* =============================================================
   PRINT
   ============================================================= */

@media print {
  [class*="as-box-"] { break-inside: avoid; border: 1px solid #ccc !important; box-shadow: none !important; }
  .as-table-wrap { overflow: visible; box-shadow: none; }
  .as-btn-primary, .as-btn-secondary, .as-btn-text { color: #000 !important; border-color: #000 !important; background: transparent !important; }
}