.kb-tool-page{
  max-width:100%;
  margin:0;
  padding:0;
  color:var(--text,#f4f7fc);
}

.kb-tool-calculator,
.kb-tool-calculator *{
  box-sizing:border-box;
}

.kb-tool-calculator{
  --kb-bg-1:#101a2c;
  --kb-bg-2:#0b1322;
  --kb-surface:rgba(255,255,255,.045);
  --kb-surface-2:rgba(255,255,255,.032);
  --kb-surface-3:rgba(255,255,255,.06);
  --kb-text:var(--text,#f4f7fc);
  --kb-muted:var(--muted,#93a3bf);
  --kb-soft:#c8d4e7;
  --kb-line:rgba(255,255,255,.08);
  --kb-line-strong:rgba(255,255,255,.14);
  --kb-blue:#51b8ff;
  --kb-blue-2:#8fd6ff;
  --kb-green:#6ff1c5;
  --kb-yellow:#ffcb6b;
  --kb-red:#ff667c;
  --kb-shadow:0 24px 60px rgba(0,0,0,.28);
  position:relative;
  overflow:hidden;
  margin:20px 0 26px;
  border:1px solid var(--kb-line);
  border-radius:24px;
  padding:24px;
  background:
    radial-gradient(circle at 8% 0%, rgba(81,184,255,.14), transparent 28%),
    radial-gradient(circle at 100% 0%, rgba(154,134,255,.12), transparent 22%),
    linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.018)),
    linear-gradient(180deg, var(--kb-bg-1) 0%, var(--kb-bg-2) 100%);
  color:var(--kb-text);
  box-shadow:var(--kb-shadow);
  isolation:isolate;
}

.kb-tool-calculator::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,0) 18%),
    radial-gradient(circle at 80% 12%, rgba(81,184,255,.10), transparent 18%);
  z-index:0;
}

.kb-tool-calculator > *{
  position:relative;
  z-index:1;
}

.kb-tool-header{
  margin-bottom:18px;
  padding-bottom:16px;
  border-bottom:1px solid var(--kb-line);
}

.kb-tool-title{
  margin:0 0 10px;
  color:var(--kb-text);
  font-size:clamp(1.35rem,2vw,1.8rem);
  line-height:1.2;
  font-weight:900;
  letter-spacing:-.02em;
}

.kb-tool-description{
  margin:0;
  color:var(--kb-soft);
  font-size:15px;
  line-height:1.65;
}

.kb-tool-help-note{
  margin-top:12px;
  padding:12px 14px;
  border:1px solid rgba(81,184,255,.18);
  border-radius:14px;
  background:rgba(81,184,255,.08);
  color:#dff4ff;
  font-size:13px;
  line-height:1.5;
}

.kb-tool-shell{display:block}
.kb-tool-shell__form{display:block}

.kb-mode-switch{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom:16px;
}

.kb-mode-switch button,
.kb-tool-actions button,
.kb-remove-row,
.kb-repeater > button{
  appearance:none;
  font:inherit;
  cursor:pointer;
  transition:transform .16s ease, box-shadow .16s ease, border-color .16s ease, background-color .16s ease, color .16s ease;
}

.kb-mode-switch button{
  min-height:42px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--kb-line);
  background:rgba(255,255,255,.035);
  color:var(--kb-soft);
  font-size:13px;
  font-weight:800;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
}

.kb-mode-switch button:hover{
  transform:translateY(-1px);
  background:rgba(255,255,255,.055);
  color:var(--kb-text);
  border-color:rgba(81,184,255,.22);
}

.kb-mode-switch button.is-active{
  color:#061120;
  background:linear-gradient(180deg, #8fd6ff 0%, #51b8ff 100%);
  border-color:transparent;
  box-shadow:0 10px 24px rgba(81,184,255,.25);
}

.kb-tool-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}

.kb-tool-grid .kb-field--full{grid-column:1/-1}

.kb-field{
  display:flex;
  flex-direction:column;
  gap:8px;
}

.kb-field label{
  color:var(--kb-text);
  font-size:13px;
  font-weight:800;
  letter-spacing:.01em;
}

.kb-field .kb-tool-grid{
  grid-template-columns:minmax(0,180px) minmax(0,1fr);
  gap:10px;
}

.kb-field input,
.kb-field select,
.kb-field textarea{
  appearance:none;
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border:1px solid var(--kb-line);
  border-radius:14px;
  background:rgba(255,255,255,.045);
  color:var(--kb-text);
  font:inherit;
  line-height:1.45;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
}

.kb-field input::placeholder,
.kb-field textarea::placeholder{
  color:var(--kb-muted);
}

.kb-field input:hover,
.kb-field select:hover,
.kb-field textarea:hover{
  border-color:var(--kb-line-strong);
  background:rgba(255,255,255,.055);
}

.kb-field input:focus,
.kb-field select:focus,
.kb-field textarea:focus{
  outline:none;
  border-color:rgba(81,184,255,.45);
  background:rgba(255,255,255,.06);
  box-shadow:0 0 0 4px rgba(81,184,255,.14);
}

.kb-field select{
  color-scheme:dark;
  padding-right:40px;
}

.kb-tool-calculator select,
.kb-tool-calculator select option,
.kb-tool-calculator select optgroup{
  background:#101a2c !important;
  color:#f4f7fc !important;
}

.kb-tool-calculator select option:checked,
.kb-tool-calculator select option:hover{
  background:#17304f !important;
  color:#ffffff !important;
}

.kb-tool-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:18px;
}

.kb-tool-actions button{
  min-height:44px;
  padding:0 16px;
  border-radius:14px;
  border:1px solid var(--kb-line);
  background:rgba(255,255,255,.04);
  color:var(--kb-text);
  font-size:14px;
  font-weight:800;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
}

.kb-tool-actions button:hover,
.kb-remove-row:hover,
.kb-repeater > button:hover{
  transform:translateY(-1px);
  box-shadow:0 12px 24px rgba(0,0,0,.16);
}

.kb-tool-actions button[data-kb-calculate="1"]{
  border-color:transparent;
  background:linear-gradient(180deg, #8fd6ff 0%, #51b8ff 100%);
  color:#061120;
  box-shadow:0 14px 30px rgba(81,184,255,.22);
}

.kb-tool-actions button[data-kb-calculate="1"]:hover{
  box-shadow:0 18px 34px rgba(81,184,255,.28);
}

.kb-tool-actions button[data-kb-reset="1"]{
  background:rgba(255,255,255,.03);
}

.kb-tool-actions button[disabled]{
  opacity:.7;
  cursor:default;
  transform:none;
  box-shadow:none;
}

.kb-tool-status,
.kb-warnings,
.kb-errors{
  margin-top:14px;
  padding:12px 14px;
  border-radius:14px;
  font-size:14px;
  line-height:1.55;
}

.kb-tool-status:empty,
.kb-warnings:empty,
.kb-errors:empty{
  display:none;
}

.kb-tool-status{
  border:1px solid var(--kb-line);
  background:rgba(255,255,255,.03);
  color:var(--kb-soft);
}

.kb-tool-status.is-success{
  border-color:rgba(111,241,197,.22);
  background:rgba(111,241,197,.10);
  color:#dffbf1;
}

.kb-tool-status.is-loading{
  border-color:rgba(81,184,255,.22);
  background:rgba(81,184,255,.10);
  color:#def3ff;
}

.kb-tool-status.is-error,
.kb-errors{
  border:1px solid rgba(255,102,124,.18);
  background:rgba(255,102,124,.10);
  color:#ffe2e7;
}

.kb-warnings{
  border:1px solid rgba(255,203,107,.18);
  background:rgba(255,203,107,.10);
  color:#fff1ce;
}

.kb-tool-result{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--kb-line);
}

.kb-tool-primary{
  display:flex;
  align-items:flex-end;
  gap:14px;
  flex-wrap:wrap;
  padding:18px 18px 16px;
  border:1px solid rgba(81,184,255,.16);
  border-radius:18px;
  background:
    radial-gradient(circle at 100% 0%, rgba(81,184,255,.12), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.028));
}

.kb-tool-primary__label{
  color:var(--kb-muted);
  font-size:13px;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.08em;
}

.kb-tool-primary__value{
  color:var(--kb-text);
  font-size:clamp(1.9rem,4vw,2.7rem);
  line-height:1;
  font-weight:900;
  letter-spacing:-.04em;
}

.kb-badges{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-top:14px;
}

.kb-badge{
  display:inline-flex;
  align-items:center;
  min-height:30px;
  padding:0 10px;
  border-radius:999px;
  border:1px solid var(--kb-line);
  background:rgba(255,255,255,.04);
  color:var(--kb-soft);
  font-size:12px;
  font-weight:800;
}

.kb-badge--positive{background:rgba(111,241,197,.12);border-color:rgba(111,241,197,.2);color:#e1fff5}
.kb-badge--warning{background:rgba(255,203,107,.12);border-color:rgba(255,203,107,.2);color:#fff3d0}
.kb-badge--danger{background:rgba(255,102,124,.12);border-color:rgba(255,102,124,.2);color:#ffe1e6}

.kb-cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:12px;
  margin-top:16px;
}

.kb-card{
  min-width:0;
  padding:16px;
  border-radius:18px;
  border:1px solid var(--kb-line);
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
}

.kb-card--neutral{background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025))}
.kb-card--positive{background:linear-gradient(180deg, rgba(111,241,197,.12), rgba(111,241,197,.06));border-color:rgba(111,241,197,.18)}
.kb-card--warning{background:linear-gradient(180deg, rgba(255,203,107,.12), rgba(255,203,107,.06));border-color:rgba(255,203,107,.18)}
.kb-card--danger{background:linear-gradient(180deg, rgba(255,102,124,.12), rgba(255,102,124,.06));border-color:rgba(255,102,124,.18)}

.kb-card__label{
  color:var(--kb-muted);
  font-size:12px;
  font-weight:800;
  line-height:1.45;
  text-transform:uppercase;
  letter-spacing:.04em;
}

.kb-card__value{
  margin-top:8px;
  color:var(--kb-text);
  font-size:1.4rem;
  line-height:1.15;
  font-weight:900;
}

.kb-card__hint{
  margin-top:10px;
  color:var(--kb-soft);
  font-size:13px;
  line-height:1.55;
}

.kb-table-wrap{
  margin-top:16px;
  overflow:auto;
  border:1px solid var(--kb-line);
  border-radius:18px;
  background:rgba(255,255,255,.03);
}

.kb-table-wrap h3{
  margin:0;
  padding:14px 16px;
  border-bottom:1px solid var(--kb-line);
  color:var(--kb-text);
  font-size:15px;
  font-weight:900;
}

.kb-table{
  width:100%;
  min-width:560px;
  border-collapse:collapse;
}

.kb-table th,
.kb-table td{
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--kb-line);
}

.kb-table th{
  color:var(--kb-muted);
  font-size:12px;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.04em;
  background:rgba(255,255,255,.03);
}

.kb-table td{
  color:var(--kb-text);
  font-size:14px;
  line-height:1.5;
}

.kb-table tbody tr:hover td{
  background:rgba(255,255,255,.03);
}

.kb-table tbody tr:last-child td{
  border-bottom:none;
}

.kb-repeater{
  display:flex;
  flex-direction:column;
  gap:12px;
}

.kb-repeater-row{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr)) auto;
  gap:10px;
  align-items:end;
  padding:14px;
  border:1px solid var(--kb-line);
  border-radius:16px;
  background:rgba(255,255,255,.03);
}

.kb-remove-row,
.kb-repeater > button{
  min-height:42px;
  padding:0 14px;
  border-radius:12px;
  border:1px solid var(--kb-line);
  background:rgba(255,255,255,.04);
  color:var(--kb-text);
  font-size:13px;
  font-weight:800;
}

.kb-remove-row{
  background:rgba(255,102,124,.08);
  border-color:rgba(255,102,124,.14);
  color:#ffe0e6;
}

.kb-repeater > button{
  align-self:flex-start;
  margin-top:4px;
  background:rgba(81,184,255,.10);
  border-color:rgba(81,184,255,.16);
  color:#def3ff;
}

@media (max-width: 960px){
  .kb-tool-calculator{padding:20px;border-radius:22px}
  .kb-tool-grid{grid-template-columns:1fr}
  .kb-field .kb-tool-grid{grid-template-columns:1fr}
  .kb-repeater-row{grid-template-columns:1fr}
}

@media (max-width: 640px){
  .kb-tool-calculator{padding:16px;border-radius:18px;margin:18px 0 22px}
  .kb-tool-actions{display:grid;grid-template-columns:1fr}
  .kb-tool-actions button,.kb-mode-switch button,.kb-remove-row,.kb-repeater > button{width:100%}
  .kb-table{min-width:480px}
}

.lb-calc-example-table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0 22px;
  font-size: 15px;
  line-height: 1.45;
}

.lb-calc-example-table th,
.lb-calc-example-table td {
  padding: 11px 12px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  vertical-align: top;
  text-align: left;
}

.lb-calc-example-table th {
  font-weight: 700;
  background: rgba(15, 23, 42, 0.04);
}

.lb-calc-example-table tbody tr:nth-child(even) {
  background: rgba(15, 23, 42, 0.025);
}

@media (max-width: 720px) {
  .lb-calc-example-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .lb-calc-example-table th,
  .lb-calc-example-table td {
    padding: 10px;
  }
}