.pitc-calculator {
  --pitc-border: #dce4e2;
  --pitc-text: #17252b;
  --pitc-muted: #50616a;
  --pitc-accent: #82bdb2;
  --pitc-accent-dark: #08745f;
  max-width: 900px;
  margin: 30px auto;
  color: var(--pitc-text);
  font-family: Arial, Helvetica, sans-serif;
}
.pitc-card {
  background: #fff;
  border: 1px solid var(--pitc-border);
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 2px 6px rgba(20,40,40,.05);
  margin-bottom: 24px;
}
.pitc-title-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 24px;
}
.pitc-calculator-icon {
  font-size: 22px;
  line-height: 1;
  margin-top: 3px;
}
.pitc-title-row h2,
.pitc-result h3,
.pitc-slabs h3 {
  margin: 0 0 6px;
  font-size: 24px;
  line-height: 1.25;
}
.pitc-title-row p,
.pitc-slabs > p {
  margin: 0;
  color: var(--pitc-muted);
  font-size: 15px;
}
.pitc-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 16px;
}
.pitc-field {
  display: block;
}
.pitc-field > span {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
  min-height: 18px;
}
.pitc-field select,
.pitc-field input {
  width: 100%;
  height: 42px;
  box-sizing: border-box;
  border: 1px solid var(--pitc-border);
  border-radius: 10px;
  padding: 0 12px;
  background: #fff;
  color: var(--pitc-text);
  font-size: 14px;
  outline: none;
}
.pitc-field select:focus,
.pitc-field input:focus {
  border-color: var(--pitc-accent-dark);
  box-shadow: 0 0 0 2px rgba(8,116,95,.08);
}
.pitc-button {
  margin-top: 22px;
  border: 0;
  border-radius: 10px;
  padding: 12px 18px;
  background: var(--pitc-accent);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}
.pitc-button:hover {
  background: var(--pitc-accent-dark);
}
.pitc-error {
  margin-top: 12px;
  color: #a42323;
  font-size: 14px;
}
.pitc-result { padding: 24px; border: 1px solid var(--pitc-border); border-radius: 14px; }
.pitc-section-heading { display:flex; align-items:center; gap:10px; margin-bottom:18px; }
.pitc-section-heading h3 { margin:0; font-size:20px; line-height:1.3; }
.pitc-heading-icon { color:#08745f; font-size:22px; font-weight:700; }
.pitc-result-grid { display:grid; grid-template-columns:repeat(6,minmax(0,1fr)); gap:12px; }
.pitc-stat-card { grid-column:span 2; min-height:86px; box-sizing:border-box; border:1px solid #dce7e4; border-radius:13px; background:#fff; padding:16px; display:flex; align-items:center; gap:13px; }
.pitc-stat-wide { grid-column:span 3; }
.pitc-stat-icon { width:42px; height:42px; min-width:42px; border-radius:50%; background:#e8f7ed; color:#08745f; display:flex; align-items:center; justify-content:center; font-size:17px; font-weight:700; }
.pitc-stat-content { min-width:0; }
.pitc-stat-content span { display:block; color:#50616a; font-size:13px; line-height:1.35; margin-bottom:3px; }
.pitc-stat-content strong { display:block; color:#08745f; font-size:20px; line-height:1.2; font-weight:700; white-space:nowrap; }
.pitc-note {
  margin: 16px 0 0;
  color: var(--pitc-muted);
  font-size: 12px;
  line-height: 1.55;
}
.pitc-table-wrap {
  overflow-x: auto;
  margin-top: 16px;
}
.pitc-slabs table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid #dce7e4;
  border-radius: 10px;
  font-size: 14px;
}
.pitc-slabs th,
.pitc-slabs td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--pitc-border);
  text-align: left;
}
.pitc-slabs th {
  font-weight: 700;
  background: #f5faf8;
}
.pitc-slabs tr:last-child td { border-bottom: 0; }
@media (max-width: 760px) {
  .pitc-grid { grid-template-columns: 1fr 1fr; }
  .pitc-result-grid { grid-template-columns: 1fr 1fr; }
  .pitc-stat-card, .pitc-stat-wide { grid-column: span 1; }
}
@media (max-width: 520px) {
  .pitc-card {
    padding: 18px;
    border-radius: 12px;
  }
  .pitc-grid, .pitc-result-grid { grid-template-columns: 1fr; }
  .pitc-stat-card, .pitc-stat-wide { grid-column: span 1; }
  .pitc-title-row h2 {
    font-size: 20px;
  }
}