:root{--bg: #f5f6f8;--card: #ffffff;--line: #e6e8eb;--text: #1d2129;--muted: #6b7280;--coupang: #d63a2e;--naver: #03c75a;--accent: #2f6df6}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Malgun Gothic,sans-serif;background:var(--bg);color:var(--text)}.layout{display:flex;min-height:100vh}.sidebar{width:200px;flex-shrink:0;background:#1d2129;color:#fff;padding:18px 0}.sidebar__logo{font-size:20px;font-weight:700;padding:0 20px 18px}.sidebar nav{display:flex;flex-direction:column}.sidebar .nav{background:none;border:none;color:#cbd2da;text-align:left;padding:12px 20px;cursor:pointer;font-size:14px}.sidebar .nav:hover{background:#ffffff0f;color:#fff}.sidebar .nav.active{background:var(--accent);color:#fff}.sidebar .nav__icon{margin-right:8px}.main{flex:1;min-width:0}.app{max-width:1100px;margin:0 auto;padding:24px 20px 60px}.header{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:12px}.header h1{font-size:22px;margin:0}.header .period{color:var(--muted);font-size:13px}.channel-tabs{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}.channel-tabs .tab{border:none;border-right:1px solid var(--line);background:var(--card);padding:6px 16px;cursor:pointer;font-size:13px;color:var(--muted)}.channel-tabs .tab:last-child{border-right:none}.channel-tabs .tab.active{background:var(--accent);color:#fff}.panel .channel-tabs .tab{padding:5px 12px;font-size:12px}.filter{display:flex;align-items:center;gap:8px;margin:18px 0;flex-wrap:wrap}.filter input[type=date]{padding:6px 8px;border:1px solid var(--line);border-radius:8px}.filter .presets button{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:6px 10px;cursor:pointer;font-size:13px}.filter .presets button:hover{border-color:var(--accent);color:var(--accent)}.filter .presets button.active{background:var(--accent);border-color:var(--accent);color:#fff}.filter .presets button.active:hover{color:#fff}.coverage{margin:0 0 18px;font-size:12px;color:var(--muted)}.coverage__text b{color:var(--text)}.coverage__bar{position:relative;height:6px;background:var(--line);border-radius:4px;margin-top:6px;overflow:hidden}.coverage__fill{position:absolute;top:0;bottom:0;background:var(--accent);border-radius:4px}.coverage--empty{color:var(--coupang);margin:0 0 18px;font-size:13px}.coverage__muted{color:var(--muted)}.slack-history{list-style:none;padding:0;margin:8px 0 0;font-size:12px;color:var(--muted)}.slack-history li{padding:2px 0}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}.card .label{color:var(--muted);font-size:13px}.card .value{font-size:22px;font-weight:700;margin-top:6px}.card .sub{color:var(--muted);font-size:12px;margin-top:4px}.section{margin-top:26px}.section h2{font-size:16px;margin:0 0 10px}.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:right;padding:8px 6px;border-bottom:1px solid var(--line)}th:first-child,td:first-child{text-align:left}th{color:var(--muted);font-weight:600;font-size:12px}.total-row td{font-weight:700;border-top:2px solid var(--line);border-bottom:none}.badge{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}.badge.coupang{background:var(--coupang)}.badge.naver{background:var(--naver)}.upload{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:13px}.upload select,.upload input[type=file]{font-size:13px}.upload .msg{color:var(--muted)}.loading,.error{padding:40px;text-align:center;color:var(--muted)}.error{color:var(--coupang)}@media (max-width: 800px){.cards{grid-template-columns:repeat(2,1fr)}}