@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');

/* 심전도 국시 완전정복: 완전 미니멀 스타일 (Pure Minimalist) */
.ECGStudy { --primary: #2C3E50; --accent: #3498DB; --danger: #E74C3C; --star: #F39C12; --bg-page: #FFFFFF; --text-main: #2F3640; --text-sub: #7F8C8D; --border-light: #F1F2F6; background-color: var(--bg-page); color: var(--text-main); font-family: 'Pretendard', -apple-system, sans-serif; line-height: 1.8; word-break: keep-all; }
.ECGStudy .page-container { max-width: 700px; margin: 0 auto; padding: 60px 24px; }
.ECGStudy h1 { font-size: 32px; font-weight: 800; color: var(--primary); margin-bottom: 50px; }
.ECGStudy h2 { font-size: 22px; font-weight: 700; color: var(--primary); margin: 50px 0 20px; padding-bottom: 8px; border-bottom: 2px solid var(--border-light); }
.ECGStudy h3 { font-size: 19px; font-weight: 700; color: var(--accent); margin: 35px 0 15px; }
.ECGStudy .text-body { font-size: 18px; margin-bottom: 12px; }

/* --- [3] No More Boxes/Blocks --- */
/* 모든 '칸'(border, background)을 완전 제거 */
.ECGStudy .study-note, .ECGStudy .note-warning, .ECGStudy .note-star { padding: 0; margin: 16px 0; border: none; background: none; font-size: 17px; }
.ECGStudy .study-note strong { color: var(--accent); }
.ECGStudy .note-warning strong { color: var(--danger); }
.ECGStudy .note-star strong { color: var(--star); }

/* --- [4] Table: Professional Medical Style --- */
.ECGStudy .table-wrapper { margin: 40px 0; border-radius: 12px; overflow-x: auto; border: 1px solid var(--border-light); box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03); -webkit-overflow-scrolling: touch; }

/* 스크롤바 디자인 */
.ECGStudy .table-wrapper::-webkit-scrollbar { height: 6px; }
.ECGStudy .table-wrapper::-webkit-scrollbar-track { background: #F1F1F1; border-radius: 10px; }
.ECGStudy .table-wrapper::-webkit-scrollbar-thumb { background: #D1D1D1; border-radius: 10px; }
.ECGStudy table { width: 100%; max-width: 100%; border-collapse: collapse; background-color: white; display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.ECGStudy thead, .ECGStudy tbody { display: table; width: 100%; min-width: 500px; }
.ECGStudy th { background-color: #F8F9FA; text-align: left; padding: 16px 20px; font-size: 13px; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 2px solid var(--border-light); white-space: nowrap; }
.ECGStudy td { padding: 18px 20px; border-bottom: 1px solid var(--border-light); font-size: 16px; color: var(--text-main); line-height: 1.5; }
.ECGStudy tr:last-child td { border-bottom: none; }
.ECGStudy tr:hover td { background-color: #FAFBFC; }

/* --- [5] Modern Emphasis --- */
.ECGStudy .highlight-text { color: var(--danger); font-weight: 700; }
.ECGStudy blockquote { margin: 40px 0; padding: 0; text-align: center; font-size: 20px; color: var(--text-sub); }
.ECGStudy .ornament { text-align: center; margin: 60px 0; }
.ECGStudy .ornament::after { content: '•••'; color: var(--border-light); letter-spacing: 15px; }

/* --- [6] Badges (Modern Icon Tag) --- */
.ECGStudy .killer-badge { display: inline-flex; align-items: center; gap: 6px; background-color: white; color: #E03131; font-size: 12px; font-weight: 800; padding: 3px 12px; border: 1.5px solid #E03131; border-radius: 4px; margin-right: 10px; vertical-align: middle; }
.ECGStudy .killer-badge::before { content: '★'; font-size: 11px; }
.ECGStudy .badge-blue { color: #1971C2; border-color: #1971C2; }
.ECGStudy .badge-blue::before { content: ':별:'; }

/* ?€?€ Images ?€?€ */
.ECGstudy img { max-width: 100%; height: auto; border-radius: 6px; margin: 10px 0; }
.ECGstudy img.full-width { width: 100%; border-radius: 8px; }
.ECGstudy .image-caption { text-align: center; font-size: 0.85em; color: #888; margin-top: 4px; }

/* ?€?€ Table Container (scroll wrapper) ?€?€ */
.ECGstudy .table-container { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 20px 0; }
.ECGstudy .table-container table { width: 100%; min-width: 500px; }