/* ---------- Reset & base ---------- */
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial; background:#f3f7fb;color:#0f172a; font-size: 18px;}

/* ---------- Page layout ---------- */
.wrap{max-width:1200px;margin:32px auto;padding:20px;display:grid;grid-template-columns:340px 1fr;gap:20px}
.main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 100vh;
  width: 100vw;
  box-sizing: border-box;
  padding: 24px 8px;
  font-size: 18px;
}

/* ---------- Card ---------- */
.card{background:linear-gradient(180deg, rgba(255,255,255,0.9), #ffffff);border-radius:14px;box-shadow:0 8px 30px rgba(16,24,40,0.06);padding:20px}
.card h3{font-size:22px;margin-bottom:12px}
label{display:block;font-size:1.08rem;color:#6b7280;margin-top:12px}
input[type=text], input[type=number], select, textarea{width:100%;padding:10px;border-radius:10px;border:1px solid #e6eef6;background:#fbfdff;font-size:14px}
input, button, select {
  font-size: 1.08rem;
  padding: 8px;
  margin: 4px;
  border-radius: 4px;
  border: 1px solid #94a3b8;
  box-sizing: border-box;
}
input[type="number"] {
  width: 80px;
}
label {
  font-size: 1.08rem;
  margin-right: 8px;
}
.small{font-size:1rem;color:#6b7280}

/* ---------- Left column controls ---------- */
.controls{height:calc(100vh - 96px);display:flex;flex-direction:column}
.controls .spacer{flex:1}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;background:#2563eb;color:#fff;border:none;cursor:pointer;font-weight:600}
.muted{color:#94a3b8;font-size:13px}

/* ---------- Right column output ---------- */
.header-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.util-pill{background:#ecfeff;color:#065f46;padding:8px 10px;border-radius:10px;font-weight:700;font-size: 1.08rem;}

/* gantt */
.gantt-wrap{background:#fff;border-radius:12px;padding:16px;margin-bottom:14px;border:1px solid #eef4fb}
.gantt{height:70px;border-radius:10px;background:linear-gradient(180deg,#f8fafc,#fff);display:flex;align-items:center;overflow:hidden;padding:8px;position:relative}
.seg{height:44px;display:flex;align-items:center;justify-content:center;border-radius:8px;margin-right:6px;color:#fff;font-weight:700;padding:0 8px;min-width:40px}
.seg.idle{background:#e6eef6;color:#334155;font-weight:600}
.legend{display:flex;gap:8px;align-items:center;margin-top:10px}
.legend .item{display:flex;gap:8px;align-items:center}
.legend .dot{width:14px;height:14px;border-radius:4px}

/* table */
table{width:100%;border-collapse:collapse;background:#ffffff;border-radius:8px;overflow:hidden}
th,td{padding:10px;border-bottom:1px solid #eef2f6;text-align:left;font-size:1.08rem}
thead th{background:#fbfdff}
.table-wrap {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  overflow-x: auto;
}

/* responsive */
@media (max-width:980px){
  .wrap{grid-template-columns:1fr;max-width:860px}
  .controls{height:auto}
}
@media (max-width: 600px) {
  .main {
    padding: 8px 2px;
    font-size: 16px;
  }
  .table-wrap {
    max-width: 98vw;
  }
  #gantt {
    min-width: 220px;
  }
  th, td {
    padding: 6px 4px;
    font-size: 1rem;
  }
}