:root{--bg: #f8fafc;--card: #ffffff;--ink: #0f172a;--brand: #0ea5a4;--danger: #b91c1c}*{box-sizing:border-box}body{margin:0;font-family:Poppins,Segoe UI,sans-serif;background:linear-gradient(160deg,#ecfeff,#f8fafc 45%,#fff7ed);color:var(--ink)}.layout{display:grid;grid-template-columns:280px 1fr;min-height:100vh}.sidebar{background:#042f2e;color:#e2e8f0;padding:20px;display:flex;flex-direction:column;gap:10px}.sidebar h1{margin:0 0 10px}.authBox{display:grid;gap:8px;margin-bottom:10px}.authBox input,.authBox button,.tabBtn,button,select,input{border-radius:10px;border:1px solid #cbd5e1;padding:10px;font-size:14px}.tabBtn{text-align:left;border:none;background:#134e4a;color:#ecfeff}.tabBtn.active{background:var(--brand);color:#042f2e;font-weight:600}.content{padding:18px}.topBar{display:flex;gap:12px;align-items:center;margin-bottom:14px}.grid4{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.card{background:var(--card);padding:12px;border-radius:12px;box-shadow:0 4px 12px #0206170f}.card.row{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.card.red{border-left:5px solid var(--danger)}.table{width:100%;background:var(--card);border-radius:12px;border-collapse:collapse;overflow:hidden}.table th,.table td{padding:10px;border-bottom:1px solid #e2e8f0;text-align:left}.table td button{margin-right:6px;margin-bottom:4px}.form{max-width:400px;display:grid;gap:8px;background:var(--card);padding:14px;border-radius:12px}.chartWrap{background:var(--card);border-radius:12px;margin-bottom:16px;padding:12px}.hint{font-size:18px;font-weight:600}@media(max-width:900px){.layout{grid-template-columns:1fr}.sidebar{position:sticky;top:0;z-index:3}}