:root{--bg: #f5f7f9;--surface: #ffffff;--border: #e2e8ef;--text: #1a2332;--muted: #5b6b7c;--brand: #0f4c5c;--brand-soft: #e7f1f3;--accent: #c45c26;--accent-soft: #f8ebe4;--success: #1f7a4d;--warning: #9a6b12;--danger: #a33b3b;--sidebar-w: 240px;--header-h: 60px;--shadow: 0 1px 2px rgba(16, 24, 40, .04);--radius: 10px;font-family:IBM Plex Sans KR,"Source Sans 3",sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{display:grid;grid-template-columns:var(--sidebar-w) 1fr;min-height:100vh}.sidebar{background:linear-gradient(180deg,#0f4c5c,#163a45);color:#f4f8f9;padding:20px 14px;position:sticky;top:0;height:100vh}.sidebar .brand{padding:8px 10px 20px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:16px}.sidebar .brand h1{margin:0;font-size:1.15rem;letter-spacing:-.02em}.sidebar .brand p{margin:4px 0 0;font-size:.8rem;opacity:.8}.nav-link{display:block;padding:10px 12px;border-radius:8px;margin-bottom:4px;color:#ffffffdb;font-size:.92rem}.nav-link:hover{background:#ffffff14}.nav-link.active{background:#ffffff24;color:#fff;font-weight:600}.nav-link.disabled{opacity:.45;cursor:not-allowed}.nav-section-label{margin:16px 12px 8px;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;opacity:.55}.main{display:flex;flex-direction:column;min-width:0}.topbar{height:var(--header-h);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:10}.topbar-title{display:flex;align-items:center;gap:10px;font-weight:600}.badge-dev{background:var(--accent-soft);color:var(--accent);border:1px solid #efd2c2;border-radius:999px;font-size:.72rem;padding:2px 8px;font-weight:700}.content{padding:24px}.page-title{margin:0 0 4px;font-size:1.45rem}.page-sub{margin:0 0 20px;color:var(--muted);font-size:.92rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:20px}.kpi{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}.kpi .label{color:var(--muted);font-size:.82rem;margin-bottom:8px}.kpi .value{font-size:1.5rem;font-weight:700;letter-spacing:-.02em}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:8px;padding:8px 14px;cursor:pointer;font-weight:600}.btn:hover{background:#f8fafc}.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn-primary:hover{background:#0c3d4a}.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed}.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}table.data{width:100%;border-collapse:collapse;font-size:.88rem}table.data th,table.data td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap}table.data th{background:#f8fafc;color:var(--muted);font-weight:600}.form-grid{display:grid;gap:12px}.form-row{display:grid;gap:6px}.form-row label{font-size:.85rem;font-weight:600}.form-row input,.form-row select,.form-row textarea{border:1px solid var(--border);border-radius:8px;padding:9px 11px;background:#fff}.form-row textarea{min-height:96px;resize:vertical}.alert{border-radius:8px;padding:12px 14px;margin-bottom:16px;font-size:.9rem;line-height:1.45}.alert-warning{background:#fff8e8;border:1px solid #f0d59a;color:#7a5a10}.alert-info{background:var(--brand-soft);border:1px solid #c5dde3;color:#234853}.alert-danger{background:#fdeeee;border:1px solid #efc0c0;color:#8a2f2f}.status-pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:3px 10px;font-size:.78rem;font-weight:600;background:#eef2f6}.status-pill.ok{background:#e7f6ee;color:var(--success)}.status-pill.warn{background:#fff4df;color:var(--warning)}.status-pill.muted{background:#eef2f6;color:var(--muted)}.toolbar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;align-items:center}.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 20% 20%,rgba(15,76,92,.12),transparent 40%),radial-gradient(circle at 80% 0%,rgba(196,92,38,.1),transparent 35%),var(--bg)}.login-card{width:min(420px,calc(100% - 32px));background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:28px;box-shadow:0 10px 30px #1018280f}.login-card h1{margin:0;font-size:1.4rem}.login-card .sub{color:var(--muted);margin:6px 0 20px}.muted{color:var(--muted)}.stack{display:grid;gap:12px}.email-preview-frame{border:1px solid var(--border);border-radius:10px;background:#fff;overflow:hidden}.email-preview-frame.desktop{max-width:720px}.email-preview-frame.mobile{max-width:390px}.email-preview-meta{padding:12px 14px;border-bottom:1px solid var(--border);background:#f8fafc;font-size:.88rem}.email-preview-body{padding:0;min-height:280px}.email-preview-body iframe{width:100%;min-height:360px;border:0}.coming-soon{opacity:.55;pointer-events:none}.dist-chart{display:flex;flex-direction:column;gap:8px}.dist-row{display:grid;grid-template-columns:minmax(90px,140px) 1fr auto;gap:10px;align-items:center}.dist-label{font-size:.82rem;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dist-bar-wrap{height:10px;background:#eef2f6;border-radius:999px;overflow:hidden}.dist-bar{height:100%;border-radius:999px;min-width:4px}.dist-count{font-size:.82rem;font-variant-numeric:tabular-nums;color:var(--text);white-space:nowrap}.alert-success{background:#e8f6ef;color:var(--success);border:1px solid #b7e0c8;padding:10px 12px;border-radius:var(--radius);margin-bottom:12px}@media (max-width: 1100px){.kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-2{grid-template-columns:1fr}}@media (max-width: 860px){.app-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto}}