*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: #f0f2f4;
  color: #1a1a1a;
}

.navbar {
  display: flex;
  align-items: center;
  height: 56px;
  padding: 0 1.5rem;
  background: #fff;
  border-bottom: 1px solid #e2e6ea;
}

.navbar-brand {
  font-size: 1rem;
  font-weight: 600;
  color: #1a1a1a;
  text-decoration: none;
}

.calculator-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1.5rem 3rem;
}

.page-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #2d6a3e;
  text-align: center;
  background: #e8eaed;
  padding: 0.85rem 1.5rem;
  border-radius: 8px;
  margin-bottom: 1.75rem;
  max-width: 100%;
}

.calculator-layout,
.assumptions-section {
  width: 100%;
  max-width: 1100px;
}

.calculator-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 1.25rem;
  align-items: start;
}

.right-column {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
}

.input-row {
  margin-bottom: 1.35rem;
}

.input-row:last-child {
  margin-bottom: 0;
}

.input-row > label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: #333;
  margin-bottom: 0.5rem;
}

.input-row select {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-size: 0.95rem;
  border: 1px solid #d5d9de;
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
}

.input-with-unit {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.input-with-unit input[type="number"] {
  width: 72px;
  padding: 0.45rem 0.5rem;
  font-size: 0.95rem;
  border: 1px solid #d5d9de;
  border-radius: 6px;
  text-align: center;
}

.unit {
  font-size: 0.85rem;
  color: #555;
}

.slider-full {
  width: 100%;
  height: 6px;
  accent-color: #4a9e5c;
  cursor: pointer;
}

.outputs-header,
.revenue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.btn-report {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: #4a9e5c;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
}

.btn-report:hover {
  background: #3d8b4f;
}

.output-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.output-tile {
  background: #f5f6f8;
  border: 1px solid #e8eaed;
  border-radius: 8px;
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-height: 72px;
}

.output-label {
  font-size: 0.78rem;
  color: #555;
  line-height: 1.3;
}

.output-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: #2d7a4f;
}

.revenue-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.revenue-controls select {
  padding: 0.35rem 0.5rem;
  font-size: 0.8rem;
  border: 1px solid #d5d9de;
  border-radius: 6px;
}

.toggle-short {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: #444;
  cursor: pointer;
  white-space: nowrap;
}

.revenue-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.25rem;
}

.revenue-daily {
  font-size: 2.25rem;
  font-weight: 700;
  color: #2d7a4f;
  margin-bottom: 1.25rem;
}

.revenue-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.revenue-tile {
  background: #f5f6f8;
  border: 1px solid #e8eaed;
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.revenue-tile-label {
  font-size: 0.78rem;
  color: #555;
}

.revenue-tile-value {
  font-size: 1rem;
  font-weight: 700;
  color: #2d7a4f;
}

.assumptions-section {
  margin-top: 1.25rem;
}

.assumptions-heading {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.assumptions-panel {
  background: #f0f7f2;
  border: 1px solid #c5dcc9;
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.assumptions-panel:last-child {
  margin-bottom: 0;
}

.panel-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #2d5c3a;
  margin-bottom: 1rem;
}

.composition-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.65rem;
}

.composition-card {
  background: #fff;
  border: 1px solid #d4e5d8;
  border-radius: 8px;
  padding: 0.85rem 0.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.composition-name {
  font-size: 0.72rem;
  font-weight: 700;
  color: #2d5c3a;
  text-transform: uppercase;
  line-height: 1.25;
}

.composition-row {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.composition-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: #2d7a4f;
}

.composition-unit {
  font-size: 0.65rem;
  color: #5a7a62;
  line-height: 1.2;
}

.constants-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.65rem;
}

.constant-card {
  background: #fff;
  border: 1px solid #d4e5d8;
  border-radius: 8px;
  padding: 1rem 0.75rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.constant-name {
  font-size: 0.72rem;
  font-weight: 700;
  color: #2d5c3a;
  text-transform: uppercase;
  line-height: 1.25;
}

.constant-value {
  font-size: 1.35rem;
  font-weight: 700;
  color: #2d7a4f;
}

.constant-unit {
  font-size: 0.7rem;
  color: #5a7a62;
}

@media (max-width: 1000px) {
  .composition-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .calculator-layout {
    grid-template-columns: 1fr;
  }

  .revenue-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .output-grid {
    grid-template-columns: 1fr;
  }

  .composition-grid {
    grid-template-columns: 1fr 1fr;
  }

  .constants-grid {
    grid-template-columns: 1fr 1fr;
  }
}