:root {
            --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --bg-body: #f0f4f8;
            --bg-sidebar: #ffffff;
            --bg-card: #ffffff;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --border-color: #e2e8f0;
            --primary: #3b82f6;
            --primary-hover: #2563eb;
            --primary-light: #eff6ff;
            --success: #10b981;
            --success-light: #ecfdf5;
            --warning: #f59e0b;
            --warning-light: #fffbeb;
            --danger: #ef4444;
            --danger-light: #fef2f2;
            --purple: #8b5cf6;
            --purple-light: #f5f3ff;
            --pink: #ec4899;
            --pink-light: #fdf2f8;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: var(--font-sans); background: var(--bg-body); color: var(--text-primary); display: flex; height: 100vh; overflow: hidden; font-size: 13px; }

        /* ── SIDEBAR ── */
        .sidebar {
            width: 240px;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            padding: 1.25rem 0;
            flex-shrink: 0;
        }
        .logo-area {
            padding: 0 1.25rem 1.25rem;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
        }
        .nav-menu { list-style: none; padding: 0; overflow-y: auto; flex: 1; }
        .nav-item { margin-bottom: 2px; padding: 0 0.75rem; }
        .nav-section-label {
            padding: 0.75rem 1.25rem 0.375rem;
            font-size: 10px;
            font-weight: 700;
            color: var(--text-secondary);
            letter-spacing: 0.8px;
            text-transform: uppercase;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 9px 0.75rem;
            text-decoration: none;
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            border-radius: 8px;
            transition: all 0.15s;
            cursor: pointer;
        }
        .nav-link ion-icon { font-size: 16px; }
        .nav-link:hover, .nav-link.active {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* ── MAIN CONTENT ── */
        .main-content { flex: 1; overflow-y: auto; padding: 1.5rem 2rem; }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border-color);
        }
        .header-title { font-size: 20px; font-weight: 700; }
        .date-badge {
            background: var(--primary-light);
            color: var(--primary);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }

        /* ── VIEWS ── */
        .view-section { display: none; }
        .view-section.active { display: block; animation: fadeIn 0.25s ease; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

        /* ── STATS ROW ── */
        .stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
        .stat-card {
            background: var(--bg-card);
            padding: 1.25rem 1rem;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            text-align: center;
            box-shadow: 0 1px 3px rgba(0,0,0,0.04);
        }
        .stat-value { font-size: 26px; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; font-family: 'JetBrains Mono', monospace; }
        .stat-label { font-size: 11px; color: var(--text-secondary); font-weight: 500; }
        .stat-value.blue { color: var(--primary); }
        .stat-value.green { color: var(--success); }
        .stat-value.orange { color: var(--warning); }
        .stat-value.pink { color: var(--pink); }

        /* ── DASHBOARD GRID ── */
        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
            margin-bottom: 1.5rem;
        }

        /* ── PROJECT CARD ── */
        .proj-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 1px 4px rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            transition: box-shadow 0.2s, transform 0.2s;
        }
        .proj-card:hover {
            box-shadow: 0 6px 20px rgba(0,0,0,0.09);
            transform: translateY(-2px);
        }

        /* Card accent top bar */
        .proj-card-bar { height: 4px; width: 100%; }

        /* Card header */
        .proj-card-header {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px 10px;
            border-bottom: 1px solid var(--border-color);
        }
        .proj-icon {
            width: 34px; height: 34px;
            border-radius: 9px;
            display: flex; align-items: center; justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }
        .proj-card-title { font-size: 13px; font-weight: 700; color: var(--text-primary); line-height: 1.3; }
        .proj-card-sub { font-size: 11px; color: var(--text-secondary); margin-top: 1px; }

        /* Status badge (select) */
        .status-badge {
            margin-left: auto;
            font-size: 10px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 12px;
            border: none;
            cursor: pointer;
            appearance: none;
            outline: none;
            flex-shrink: 0;
        }
        .status-active { background: rgba(16,185,129,.12); color: var(--success); }
        .status-hold { background: rgba(245,158,11,.12); color: var(--warning); }
        .status-done { background: rgba(100,116,139,.12); color: var(--text-secondary); }
        .status-review { background: rgba(139,92,246,.12); color: var(--purple); }

        /* ── PREVIEW SECTION ── */
        .proj-preview-wrap {
            height: 130px;
            background: #f1f5f9;
            position: relative;
            overflow: hidden;
            flex-shrink: 0;
            cursor: pointer;
        }
        .proj-preview-wrap iframe {
            width: 200%;
            height: 200%;
            transform: scale(0.5);
            transform-origin: 0 0;
            border: none;
            pointer-events: none;
        }
        .proj-preview-overlay {
            position: absolute;
            inset: 0;
            background: rgba(15,23,42,0.38);
            color: #fff;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            opacity: 0;
            transition: 0.2s;
            font-size: 12px;
            font-weight: 600;
        }
        .proj-preview-overlay ion-icon { font-size: 20px; }
        .proj-card:hover .proj-preview-overlay { opacity: 1; }
        .proj-no-preview {
            height: 130px;
            background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 6px;
            color: var(--text-secondary);
            font-size: 11px;
        }
        .proj-no-preview ion-icon { font-size: 28px; opacity: 0.4; }

        /* ── CARD BODY ── */
        .proj-card-body { padding: 12px 14px; display: flex; flex-direction: column; gap: 10px; flex: 1; }

        /* Progress bar */
        .prog-bar-wrap { display: flex; flex-direction: column; gap: 4px; }
        .prog-label { display: flex; justify-content: space-between; align-items: center; }
        .prog-label span:first-child { font-size: 11px; color: var(--text-secondary); }
        .prog-label span:last-child { font-size: 11px; font-weight: 700; }
        .prog-bar { height: 6px; background: #e2e8f0; border-radius: 10px; overflow: hidden; }
        .prog-fill { height: 100%; border-radius: 10px; transition: width 0.5s; }

        /* Info rows (견적, 뉴스, 이슈) */
        .info-section { display: flex; flex-direction: column; gap: 5px; }
        .info-row {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            padding: 7px 9px;
            border-radius: 8px;
            background: var(--bg-body);
            font-size: 11px;
            line-height: 1.5;
        }
        .info-row ion-icon { font-size: 14px; flex-shrink: 0; margin-top: 1px; }
        .info-row-label { font-weight: 700; color: var(--text-primary); white-space: nowrap; }
        .info-row-val { color: var(--text-secondary); }

        /* Links footer */
        .proj-card-links {
            padding: 9px 14px;
            background: #f8fafc;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        .link-row {
            display: flex;
            align-items: center;
            gap: 7px;
            font-size: 10px;
        }
        .link-row ion-icon { font-size: 12px; color: var(--text-secondary); flex-shrink: 0; }
        .link-row .link-purpose { font-weight: 700; color: var(--text-primary); white-space: nowrap; }
        .link-row a {
            color: var(--primary);
            text-decoration: none;
            font-family: 'JetBrains Mono', monospace;
            word-break: break-all;
            white-space: normal;
        }
        .link-row a:hover { text-decoration: underline; }

        /* ── FULL-WIDTH CARDS ── */
        .full-width-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
            margin-bottom: 1.5rem;
        }
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 1.25rem;
            box-shadow: 0 1px 3px rgba(0,0,0,0.04);
        }
        .card-header {
            display: flex; align-items: center; gap: 10px;
            margin-bottom: 1rem; padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border-color);
        }
        .card-icon { width: 36px; height: 36px; border-radius: 9px; display: flex; align-items: center; justify-content: center; font-size: 18px; }
        .icon-blue { background: var(--primary-light); color: var(--primary); }
        .icon-green { background: var(--success-light); color: var(--success); }
        .icon-orange { background: var(--warning-light); color: var(--warning); }
        .card-title { font-size: 14px; font-weight: 700; }
        .card-subtitle { font-size: 11px; color: var(--text-secondary); margin-top: 2px; }

        /* Todo items */
        .todo-list { display: flex; flex-direction: column; gap: 8px; }
        .todo-item { display: flex; gap: 9px; align-items: flex-start; cursor: pointer; }
        .todo-item input[type="checkbox"] { margin-top: 3px; width: 14px; height: 14px; flex-shrink: 0; cursor: pointer; }
        .todo-item label { font-size: 12px; line-height: 1.5; cursor: pointer; }
        .todo-item label strong { color: var(--text-primary); }

        /* ── MARKDOWN VIEWER ── */
        .btn-action { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 6px; font-size: 12px; font-weight: 600; cursor: pointer; border: none; transition: all 0.2s; }
        .btn-edit { background: var(--bg-body); color: var(--text-primary); border: 1px solid var(--border-color); }
        .btn-edit:hover { background: #e2e8f0; }
        .btn-save { background: var(--primary); color: white; }
        .btn-save:hover { background: var(--primary-hover); }
        .btn-cancel { background: var(--danger-light); color: var(--danger); border: 1px solid var(--danger-light); }
        .btn-cancel:hover { background: #fee2e2; }
        .markdown-body { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 2rem; line-height: 1.7; font-size: 14px; color: var(--text-primary); }
        .markdown-body h1 { font-size: 22px; font-weight: 700; margin-bottom: 1.25rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--border-color); color: var(--primary); }
        .markdown-body h2 { font-size: 17px; font-weight: 600; margin: 1.75rem 0 0.75rem; color: #334155; }
        .markdown-body h3 { font-size: 14px; font-weight: 600; margin: 1.25rem 0 0.5rem; }
        .markdown-body p { margin-bottom: 0.875rem; }
        .markdown-body ul, .markdown-body ol { margin-bottom: 0.875rem; padding-left: 1.5rem; }
        .markdown-body li { margin-bottom: 0.375rem; line-height: 1.6; }
        .markdown-body strong { font-weight: 600; }
        .markdown-body table { width: 100%; border-collapse: collapse; margin: 1.25rem 0; font-size: 13px; }
        .markdown-body th, .markdown-body td { border: 1px solid var(--border-color); padding: 10px 14px; text-align: left; }
        .markdown-body th { background: #f1f5f9; font-weight: 600; color: #475569; }
        .markdown-body tbody tr:hover { background: #f8fafc; }
        .markdown-body blockquote { border-left: 4px solid var(--primary); padding: 0.875rem 1rem; margin-left: 0; color: var(--text-secondary); background: var(--primary-light); border-radius: 0 8px 8px 0; }
        .loading-text { text-align: center; color: var(--text-secondary); padding: 3rem; font-size: 14px; }
        .error-text { text-align: center; color: var(--danger); background: var(--danger-light); padding: 1.5rem; border-radius: 8px; border: 1px dashed var(--danger); margin: 1.5rem 0; line-height: 1.6; font-size: 13px; }
        select.status-badge { appearance: none; -webkit-appearance: none; border: 1px solid transparent; cursor: pointer; outline: none; }
        select.status-badge:hover { filter: brightness(0.95); }
        @keyframes spin { 100% { transform: rotate(360deg); } }

@keyframes spin { 100% { transform: rotate(360deg); } }
        /* Markdown enhancements for dashboard */
        #todos-view.markdown-body p, #estimates-view.markdown-body p { margin-bottom: 0; }
        #todos-view.markdown-body ul { padding-left: 0; list-style: none; margin-bottom:0; }
        #todos-view.markdown-body li { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 6px; font-size: 13px; }
        #estimates-view.markdown-body table { margin: 0; width: 100%; border: none; }
        #estimates-view.markdown-body th, #estimates-view.markdown-body td { border: none; border-bottom: 1px solid var(--border-color); padding: 8px 10px; text-align: left; }
        #estimates-view.markdown-body tr:last-child td { border-bottom: none; }