.lxk-app {
  --lxk-primary: #0f3057;
  --lxk-primary-hover: #0a223e;
  --lxk-accent: #2c7a7b;
  --lxk-accent-hover: #225a5b;
  --lxk-accent-bg: #edf5f5;
  --lxk-amort: #2c7a7b;
  --lxk-ranta: #b45309;
  --lxk-ink: #1a202c;
  --lxk-text-light: #4a5568;
  --lxk-muted: #6b7280;
  --lxk-line: #e5e7eb;
  --lxk-border-strong: #cbd5e1;
  --lxk-bg: #f7fafc;
  --lxk-card: #ffffff;
  --lxk-warn-bg: #fffbeb;
  --lxk-warn-border: #b45309;
  --lxk-warn-text: #92400e;
  --lxk-radius: 6px;
  --lxk-radius-lg: 8px;
  --lxk-shadow-sm: 0 1px 2px rgba(15, 48, 87, .04);
  --lxk-shadow: 0 2px 6px rgba(15, 48, 87, .06);
  --lxk-shadow-md: 0 4px 12px rgba(15, 48, 87, .08);

  font: inherit;
  color: var(--lxk-ink);
  background: var(--lxk-bg);
  border: 1px solid var(--lxk-line);
  border-radius: var(--lxk-radius-lg);
  padding: clamp(18px, 3.5vw, 30px);
  margin: 28px 0;
  box-sizing: border-box;
  line-height: 1.5;
}
.lxk-app *,
.lxk-app *::before,
.lxk-app *::after { box-sizing: border-box; }

.lxk-app h3.lxk-title {
  margin: 0 0 4px;
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
  font-weight: 700;
  color: var(--lxk-primary);
  line-height: 1.2;
}
.lxk-app .lxk-sub {
  margin: 0 0 24px;
  color: var(--lxk-text-light);
  font-size: .97rem;
  line-height: 1.5;
}

.lxk-app .lxk-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px 28px;
}
.lxk-app .lxk-field { min-width: 0; }
.lxk-app .lxk-field-wide { grid-column: 1 / -1; }

.lxk-app .lxk-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.lxk-app .lxk-label-name {
  font-weight: 600;
  font-size: .95rem;
  color: var(--lxk-ink);
}
.lxk-app .lxk-input-group {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.lxk-app input.lxk-num {
  box-sizing: border-box;
  width: 112px;
  flex: none;
  display: inline-block;
  border: 1px solid var(--lxk-border-strong);
  border-radius: var(--lxk-radius);
  padding: 8px 12px;
  margin: 0;
  font: inherit;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.3;
  text-align: right;
  color: var(--lxk-ink);
  background: var(--lxk-card);
}
.lxk-app input.lxk-num:focus {
  outline: none;
  border-color: var(--lxk-primary);
  box-shadow: 0 0 0 3px rgba(15, 48, 87, .12);
}
.lxk-app .lxk-suffix {
  color: var(--lxk-text-light);
  font-weight: 600;
  font-size: .92rem;
  white-space: nowrap;
}

.lxk-app input[type=range].lxk-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: var(--lxk-border-strong);
  accent-color: var(--lxk-primary);
  cursor: pointer;
  margin: 6px 0 0;
  padding: 0;
}
.lxk-app input[type=range].lxk-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--lxk-primary);
  border: 3px solid #fff;
  box-shadow: 0 1px 4px rgba(15, 48, 87, .25);
  cursor: pointer;
}
.lxk-app input[type=range].lxk-range::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--lxk-primary);
  border: 3px solid #fff;
  box-shadow: 0 1px 4px rgba(15, 48, 87, .25);
  cursor: pointer;
}
.lxk-app .lxk-small-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.lxk-app .lxk-small label {
  display: block;
  font-weight: 600;
  font-size: .9rem;
  color: var(--lxk-ink);
  margin-bottom: 8px;
}
.lxk-app .lxk-small .lxk-input-group {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 8px;
}
.lxk-app .lxk-small input.lxk-num {
  width: auto;
  flex: 1 1 auto;
  min-width: 0;
}
.lxk-app .lxk-hint {
  display: block;
  color: var(--lxk-text-light);
  font-weight: 400;
  font-size: .82rem;
  line-height: 1.4;
  margin-top: 6px;
}

.lxk-seg {
  display: inline-flex;
  background: var(--lxk-bg);
  border: 1px solid var(--lxk-line);
  border-radius: 999px;
  padding: 4px;
  gap: 4px;
  flex-wrap: wrap;
}
.lxk-seg button {
  border: 0;
  background: transparent;
  color: var(--lxk-muted);
  font: inherit;
  font-weight: 600;
  font-size: .88rem;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.lxk-seg button:hover { color: var(--lxk-ink); }
.lxk-seg .lxk-seg-active {
  background: var(--lxk-primary);
  color: #fff;
  box-shadow: 0 1px 3px rgba(15, 48, 87, .2);
}

.lxk-cap-warn {
  margin-top: 16px;
  background: var(--lxk-warn-bg);
  border-left: 3px solid var(--lxk-warn-border);
  border-radius: 0 var(--lxk-radius) var(--lxk-radius) 0;
  padding: 12px 16px;
  font-size: .88rem;
  color: var(--lxk-warn-text);
}

.lxk-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 22px;
}
.lxk-card-res {
  background: var(--lxk-card);
  border: 1px solid var(--lxk-line);
  border-top: 3px solid var(--lxk-accent);
  border-radius: var(--lxk-radius-lg);
  box-shadow: var(--lxk-shadow-sm);
  padding: 18px 20px;
}
.lxk-card-res h4 {
  margin: 0 0 2px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--lxk-primary);
}
.lxk-card-res .lxk-tag {
  display: block;
  font-size: .78rem;
  color: var(--lxk-muted);
  margin-bottom: 14px;
  font-weight: 400;
}
.lxk-big {
  font-size: clamp(1.5rem, 4vw, 1.95rem);
  font-weight: 800;
  color: var(--lxk-primary);
  line-height: 1.1;
  letter-spacing: -.01em;
}
.lxk-big-lbl {
  font-size: .8rem;
  color: var(--lxk-muted);
  margin-bottom: 14px;
  display: block;
}
.lxk-rows { border-top: 1px solid var(--lxk-line); padding-top: 10px; }
.lxk-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 0;
  font-size: .9rem;
}
.lxk-row span:first-child { color: var(--lxk-muted); }
.lxk-row span:last-child { font-weight: 700; text-align: right; }

.lxk-diff {
  grid-column: 1 / -1;
  background: var(--lxk-accent-bg);
  border: 1px solid var(--lxk-accent);
  border-radius: var(--lxk-radius-lg);
  padding: 12px 16px;
  font-size: .9rem;
  color: var(--lxk-ink);
}

.lxk-viz { margin-top: 26px; }
.lxk-viz h4 {
  margin: 0 0 4px;
  font-size: .98rem;
  font-weight: 700;
  color: var(--lxk-primary);
}
.lxk-viz p.lxk-viz-sub { margin: 0 0 12px; font-size: .85rem; color: var(--lxk-muted); }

.lxk-split svg { width: 100%; height: 26px; display: block; border-radius: 4px; overflow: hidden; }
.lxk-bar-amort { fill: var(--lxk-amort); }
.lxk-bar-ranta { fill: var(--lxk-ranta); }
.lxk-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 12px;
  font-size: .88rem;
}
.lxk-dot { display: inline-block; width: 11px; height: 11px; border-radius: 3px; margin-right: 7px; vertical-align: middle; }
.lxk-dot-amort { background: var(--lxk-amort); }
.lxk-dot-ranta { background: var(--lxk-ranta); }

.lxk-rate svg { width: 100%; height: auto; display: block; }
.lxk-rbar { fill: #c5cedb; transition: fill .15s; }
.lxk-rbar-base { fill: var(--lxk-primary); }
.lxk-rbar-val { fill: var(--lxk-ink); font-size: 10px; font-weight: 700; }
.lxk-rbar-lbl { fill: var(--lxk-muted); font-size: 10px; }

.lxk-footnote {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--lxk-line);
  font-size: .8rem;
  color: var(--lxk-muted);
  line-height: 1.5;
}

@media (max-width: 600px) {
  .lxk-app .lxk-controls { grid-template-columns: 1fr; }
  .lxk-app .lxk-results { grid-template-columns: 1fr; }
}