:root{
  --bg:#f8f6f0;
  --card-bg-1: linear-gradient(145deg,#ffffff,#e7f2e7);
  --primary:#1e4620;
  --accent:#b89b3f;
  --muted:#6b6b6b;
  --text:#1e4620;
  --btn-text:#ffffff;
}
*{box-sizing:border-box}
body{font-family:Poppins,system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial;background:var(--bg);margin:0;color:var(--text);-webkit-font-smoothing:antialiased}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;max-width:1100px;margin:14px auto 0}
.topbar h1{margin:0;font-size:1.25rem;color:var(--primary)}

/* hotbar */
.theme-hotbar{position:relative;display:flex;gap:8px;align-items:center}
.theme-hotbar .theme-btn{background:transparent;border:1px solid rgba(0,0,0,0.06);padding:8px;border-radius:8px;cursor:pointer;font-size:1.05rem;transition:transform .15s;display:inline-flex;align-items:center;justify-content:center}
.theme-hotbar .theme-btn:hover{transform:translateY(-3px)}
.custom-panel{position:absolute;right:0;top:44px;background:var(--card-bg-1);padding:10px;border-radius:10px;border:1px solid rgba(0,0,0,0.06);box-shadow:0 6px 18px rgba(0,0,0,0.08);min-width:220px;display:none;flex-direction:column;gap:8px;z-index:40}
.custom-panel label{display:flex;align-items:center;justify-content:space-between;font-size:0.85rem;color:var(--muted)}
.custom-actions{display:flex;gap:8px;justify-content:flex-end}
.custom-panel input[type=color]{height:36px;width:48px;border-radius:6px;border:none;padding:0;margin-left:8px}

/* loading overlay */
.loading-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.06);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:80}
.loader{width:48px;height:48px;border-radius:50%;border:5px solid rgba(0,0,0,0.08);border-top-color:var(--accent);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-overlay p{margin-top:12px;color:var(--primary);font-weight:600}

/* layout */
.container{max-width:1100px;margin:18px auto;padding:20px}
.top-section{display:flex;gap:20px;flex-wrap:wrap;margin-bottom:20px}
.card{background:var(--card-bg-1);border-radius:14px;padding:18px;margin-bottom:18px;border:1px solid rgba(184,155,63,0.15);box-shadow:0 8px 22px rgba(30,70,32,0.06)}
.card h2{margin:0 0 12px 0;color:var(--primary);font-size:1rem;border-bottom:3px solid var(--accent);padding-bottom:8px}

/* target */
.target-form{display:flex;gap:10px;justify-content:center;align-items:center}
.target-form input{padding:8px 10px;border-radius:8px;border:1px solid #d9d9d9;width:180px}
.target-form button{background:var(--accent);color:var(--btn-text);border:none;padding:8px 12px;border-radius:8px;cursor:pointer}

/* progress */
.progress-bar-bg{background:#e9efe9;border-radius:10px;height:18px;overflow:hidden;margin-top:8px}
.progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width .8s}

/* form */
.form-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.form-grid input,.form-grid button{padding:10px;border-radius:8px;border:1px solid #ddd}
.form-grid button{background:var(--primary);color:var(--btn-text);border:none;cursor:pointer}
@media (max-width:880px){.form-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.form-grid{grid-template-columns:1fr} .target-form input{width:100%} .topbar{padding:12px}}

/* table */
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;font-size:0.95rem}
th,td{text-align:center;padding:10px;border-bottom:1px solid rgba(0,0,0,0.05)}
th{background:var(--accent);color:var(--btn-text);position:sticky;top:0}
.editBtn{background:rgba(30,70,32,0.08);border:none;padding:6px 8px;border-radius:6px;cursor:pointer}
.deleteBtn{background:#e45757;border:none;color:#fff;padding:6px 8px;border-radius:6px;cursor:pointer}
tfoot td{font-weight:700;background:rgba(0,0,0,0.03)}

/* chart */
.chart-card canvas{width:100% !important;max-height:380px}

/* export */
.export-controls{display:flex;gap:10px;justify-content:center;margin:18px 0}
.export-controls button{background:var(--accent);color:var(--btn-text);border:none;padding:10px 14px;border-radius:10px;cursor:pointer}

/* utilities */
.muted{background:#f0f0f0;color:#666}
.right-align{text-align:right}

/* themes */
.theme-pink{--bg:#fff8fb;--card-bg-1:linear-gradient(145deg,#ffffff,#ffedf4);--primary:#c72567;--accent:#ff9ccf;--text:#6b1132}
.theme-green{--bg:#f8f6f0;--card-bg-1:linear-gradient(145deg,#ffffff,#e7f2e7);--primary:#1e4620;--accent:#b89b3f;--text:#1e4620}
.theme-blue{--bg:#f4f7ff;--card-bg-1:linear-gradient(145deg,#ffffff,#e7f0ff);--primary:#1e3a8a;--accent:#7c3aed;--text:#122244}
.theme-sun{--bg:#fffaf0;--card-bg-1:linear-gradient(145deg,#ffffff,#fff7e6);--primary:#6b4a00;--accent:#eab308;--text:#3b2e00}

/* apply root bg */
body{background:var(--bg);color:var(--text)}