.case5 {
  margin-top: 26px;
  padding: 42px;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background:
    radial-gradient(circle at top left, rgba(219, 235, 224, 0.7), transparent 28%),
    radial-gradient(circle at top right, rgba(219, 229, 243, 0.75), transparent 26%),
    rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-card);
}

.case5-header {
  margin-bottom: 28px;
}

.case5-kicker {
  margin-bottom: 8px;
  color: var(--green);
  font-family: var(--font-tech);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.case5 h2 {
  margin: 0 0 14px;
  color: var(--green);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.case5-subtitle {
  max-width: 900px;
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.85;
}

.case5-problem-solution {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.case5-info-card {
  padding: 22px;
  border-radius: 18px;
}

.case5-info-card h3 {
  margin: 10px 0 9px;
  font-size: 18px;
  line-height: 1.3;
}

.case5-info-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
}

.case5-problem {
  border: 1px solid #efc7c7;
  background: linear-gradient(135deg, #fff1f1, #fff9f7);
}

.case5-problem h3 {
  color: #8e3434;
}

.case5-solution {
  border: 1px solid #cfe2d4;
  background: linear-gradient(135deg, #eef8f0, #f8fcf9);
}

.case5-solution h3 {
  color: var(--green);
}

.case5-info-label {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  font-family: var(--font-tech);
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
}

.case5-problem .case5-info-label {
  background: #f4cccc;
  color: #8e3434;
}

.case5-solution .case5-info-label {
  background: #d8eadc;
  color: var(--green);
}

.case5-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.case5-summary-card {
  padding: 18px;
  border: 1px solid #e4ddd5;
  border-radius: 17px;
  background: rgba(255, 255, 255, 0.92);
}

.case5-summary-card:nth-child(1) {
  background: #f2f7fb;
  border-color: #d7e5f0;
}

.case5-summary-card:nth-child(2) {
  background: #f6f2fb;
  border-color: #e0d8ef;
}

.case5-summary-card:nth-child(3) {
  background: #fff7e8;
  border-color: #efdfb5;
}

.case5-summary-card:nth-child(4) {
  background: #eef8f0;
  border-color: #d0e4d5;
}

.case5-summary-card span,
.case5-summary-card small {
  display: block;
  color: var(--text-muted);
  font-size: 10px;
}

.case5-summary-card strong {
  display: block;
  margin: 8px 0 6px;
  color: #2e2b28;
  font-family: var(--font-tech);
  font-size: 26px;
  line-height: 1;
}

.case5-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.4fr);
  gap: 16px;
}

.case5-orders-panel,
.case5-parts-panel {
  min-width: 0;
  overflow: hidden;
  border: 1px solid #e5ddd4;
  border-radius: 18px;
  background: #fff;
}

.case5-panel-head {
  padding: 16px 18px;
  border-bottom: 1px solid #e5ddd4;
  background: #f7f4ef;
}

.case5-panel-head strong {
  display: block;
  color: #3e3a36;
  font-size: 14px;
}

.case5-panel-head span {
  display: block;
  margin-top: 3px;
  color: var(--text-muted);
  font-size: 10px;
}

.case5-machines {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.case5-machine-card {
  display: grid;
  grid-template-columns: auto 1fr 86px;
  grid-template-areas:
    "code title input"
    "code note input";
  gap: 3px 12px;
  align-items: center;
  padding: 15px;
  border: 1px solid #e7e0d8;
  border-radius: 15px;
  background: #fcfbf9;
  transition:
    border-color 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.case5-machine-card:hover {
  border-color: #bdd0c2;
  box-shadow: 0 10px 26px rgba(53, 89, 75, 0.08);
  transform: translateY(-1px);
}

.case5-machine-code {
  grid-area: code;
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--green), #668c79);
  color: #fff;
  font-family: var(--font-tech);
  font-size: 10px;
  font-weight: 700;
}

.case5-machine-card strong {
  grid-area: title;
  color: #403c38;
  font-size: 13px;
}

.case5-machine-card small {
  grid-area: note;
  color: var(--text-muted);
  font-size: 9px;
  line-height: 1.45;
}

.case5-machine-card input {
  grid-area: input;
  width: 86px;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid #d8d0c7;
  border-radius: 11px;
  background: #fff;
  color: #2f2c29;
  font-family: var(--font-tech);
  font-size: 15px;
  font-weight: 700;
  text-align: center;
}

.case5-formula {
  margin: 0 16px 16px;
  padding: 15px;
  border: 1px solid #d7e4da;
  border-radius: 14px;
  background: #f1f7f2;
}

.case5-formula strong,
.case5-formula span {
  display: block;
}

.case5-formula strong {
  color: var(--green);
  font-size: 12px;
}

.case5-formula span {
  margin-top: 4px;
  color: #5c675f;
  font-size: 10px;
  line-height: 1.55;
}

.case5-parts-list {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.case5-part-row {
  display: grid;
  grid-template-columns: minmax(150px, 1.5fr) 90px 95px 95px;
  gap: 10px;
  align-items: center;
  padding: 13px;
  border: 1px solid #e7e0d8;
  border-radius: 14px;
  background: #fcfbf9;
}

.case5-part-name strong,
.case5-part-name span {
  display: block;
}

.case5-part-name strong {
  color: #403c38;
  font-size: 12px;
}

.case5-part-name span {
  margin-top: 3px;
  color: var(--text-muted);
  font-family: var(--font-tech);
  font-size: 8px;
}

.case5-part-cell {
  text-align: center;
}

.case5-part-cell span {
  display: block;
  margin-bottom: 5px;
  color: var(--text-muted);
  font-size: 8px;
}

.case5-part-cell strong {
  display: inline-flex;
  min-width: 52px;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #edf3f7;
  color: #3b5364;
  font-family: var(--font-tech);
  font-size: 12px;
}

.case5-stock-input {
  width: 100%;
  min-height: 38px;
  padding: 0 8px;
  border: 1px solid #d8d0c7;
  border-radius: 10px;
  background: #fff;
  color: #2f2c29;
  font-family: var(--font-tech);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

.case5-buy-value {
  display: inline-flex;
  min-width: 56px;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-family: var(--font-tech);
  font-size: 12px;
  font-weight: 700;
}

.case5-buy-value.deficit {
  border: 1px solid #efb8b8;
  background: #ffeaea;
  color: #9d3030;
}

.case5-buy-value.covered {
  border: 1px solid #cfe2d4;
  background: #edf7ef;
  color: #297047;
}

.case5-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.case5-flow article {
  position: relative;
  padding: 18px 14px;
  border: 1px solid #e4ddd5;
  border-radius: 15px;
  background: #fcfbf9;
  text-align: center;
}

.case5-flow article:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -11px;
  z-index: 2;
  color: var(--green);
  font-family: var(--font-tech);
  font-weight: 700;
  transform: translateY(-50%);
}

.case5-flow span {
  display: grid;
  width: 30px;
  height: 30px;
  margin: 0 auto 9px;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-family: var(--font-tech);
  font-size: 10px;
  font-weight: 700;
}

.case5-flow strong,
.case5-flow small {
  display: block;
}

.case5-flow strong {
  color: #403c38;
  font-size: 12px;
}

.case5-flow small {
  margin-top: 4px;
  color: var(--text-muted);
  font-size: 9px;
}

.case5-cta {
  display: flex;
  justify-content: center;
  margin-top: 18px;
}

.case5-cta a {
  display: inline-flex;
  min-height: 48px;
  padding: 0 22px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(47, 111, 159, 0.18);
  transition:
    background 0.2s ease,
    transform 0.2s ease;
}

.case5-cta a:hover {
  background: var(--blue-hover);
  transform: translateY(-1px);
}

@media (max-width: 900px) {
  .case5 {
    padding: 32px;
  }

  .case5-grid {
    grid-template-columns: 1fr;
  }

  .case5-summary {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .case5 {
    margin-top: 18px;
    padding: 26px 16px;
    border-radius: 18px;
  }

  .case5-problem-solution,
  .case5-summary,
  .case5-flow {
    grid-template-columns: 1fr;
  }

  .case5-machine-card {
    grid-template-columns: 54px 1fr;
    grid-template-areas:
      "code title"
      "code note"
      "input input";
  }

  .case5-machine-card input {
    width: 100%;
    margin-top: 10px;
  }

  .case5-part-row {
    grid-template-columns: 1fr 1fr;
  }

  .case5-part-name {
    grid-column: 1 / -1;
  }

  .case5-flow article:not(:last-child)::after {
    content: "↓";
    top: auto;
    right: 50%;
    bottom: -12px;
    transform: translateX(50%);
  }

  .case5-cta a {
    width: 100%;
  }
}
.case5-calculate-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin: 22px 0;
  padding: 22px;
  border: 1px solid #d7e4da;
  border-radius: 18px;
  background:
    linear-gradient(
      135deg,
      #eef8f0 0%,
      #f4f7fb 100%
    );
}

.case5-calculate-button {
  min-height: 52px;
  padding: 0 26px;
  border: 0;
  border-radius: 13px;
  background: var(--green);
  color: #ffffff;
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(53, 89, 75, 0.22);
  transition:
    background 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.case5-calculate-button:hover {
  background: var(--green-hover);
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(53, 89, 75, 0.28);
}

.case5-calculate-button:disabled {
  opacity: 0.65;
  cursor: wait;
  transform: none;
  box-shadow: none;
}

.case5-loader {
  display: none;
  align-items: center;
  gap: 10px;
  color: #50675a;
  font-size: 11px;
  font-weight: 600;
}

.case5-loader.active {
  display: flex;
}

.case5-spinner {
  width: 19px;
  height: 19px;
  border: 2px solid #cfe0d3;
  border-top-color: var(--green);
  border-radius: 50%;
  animation: case5Spin 0.75s linear infinite;
}

@keyframes case5Spin {
  to {
    transform: rotate(360deg);
  }
}

.case5-results {
  opacity: 1;
}

.case5-summary,
.case5-flow {
  max-height: 0;
  margin-top: 0;
  margin-bottom: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition:
    max-height 0.8s ease,
    margin 0.4s ease,
    opacity 0.4s ease,
    transform 0.4s ease;
}

.case5-results.visible .case5-summary {
  max-height: 300px;
  margin-bottom: 18px;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.case5-results.visible .case5-flow {
  max-height: 300px;
  margin-top: 18px;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}