:root {
  --calc-border: #d9e2ef;
  --calc-card-bg: #ffffff;
  --calc-muted: #5b6b7c;
  --calc-accent: #f29400;
  --calc-accent-dark: #c97b00;
  --calc-blue: #006ab3;
  --calc-error: #d64545;
  --calc-bg: #f5f7fb;
}

.calcv2-meta {
  font-size: 0.9rem;
  color: var(--calc-muted);
  margin-top: 1.5rem;
}

.calc-section {
  padding: 40px 0;
}

.section-lead {
  color: #4a5a6c;
  margin: 0 0 16px;
  font-size: 0.9rem;
}

#plans-compare .plans-table-wrapper {
  border: 1px solid var(--calc-border);
  border-radius: 18px;
  overflow: hidden;
  background: var(--calc-card-bg);
  box-shadow: 0 10px 24px rgba(10, 27, 43, 0.08);
}

.plans-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.plans-table thead {
  background: #f3f6fb;
}

.plans-table th,
.plans-table td {
  padding: 12px;
  border-bottom: 1px solid var(--calc-border);
  vertical-align: top;
  font-size: 0.85rem;
}

.plans-table th {
  font-weight: 600;
  color: #1e2d3f;
}

.plans-table td {
  color: #2f3d4e;
}

.plan-row-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #7a8798;
  margin-bottom: 4px;
}

.plan-row-value {
  display: block;
  font-weight: 600;
  color: #1e2d3f;
  font-size: 0.85rem;
}

.calc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 24px;
  align-items: start;
}

.calc-card {
  background: var(--calc-card-bg);
  border: 1px solid var(--calc-border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 12px 32px rgba(10, 27, 43, 0.08);
}

.calc-card h2 {
  margin-top: 0;
  margin-bottom: 16px;
  color: #0a1b2b;
  font-size: 1.2rem;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.field-group--narrow {
  max-width: 140px;
}

.field-group label {
  font-weight: 600;
  color: #253449;
  font-size: 0.85rem;
}

.field-group input,
.field-group select {
  border: 1px solid var(--calc-border);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 0.9rem;
  font-family: inherit;
  color: #102030;
  background: #fff;
}

.field-group input:focus,
.field-group select:focus {
  outline: 2px solid rgba(0, 106, 179, 0.2);
  border-color: var(--calc-blue);
}

.field-group input[aria-invalid="true"] {
  border-color: var(--calc-error);
  background: rgba(214, 69, 69, 0.06);
}

.form-error {
  font-size: 0.75rem;
  color: var(--calc-error);
  min-height: 0.85rem;
}

.product-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.product-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 6px;
  border: 2px solid var(--calc-border);
  border-radius: 10px;
  background: #fff;
  color: #253449;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 42px;
}

.product-button:hover {
  border-color: var(--calc-blue);
  background: #f7f9fc;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 106, 179, 0.15);
}

.product-button:focus {
  outline: 2px solid rgba(0, 106, 179, 0.3);
  outline-offset: 2px;
  border-color: var(--calc-blue);
}

.product-button[aria-pressed="true"],
.product-button.is-active {
  background: var(--calc-blue);
  border-color: var(--calc-blue);
  color: #fff;
  box-shadow: 0 6px 16px rgba(0, 106, 179, 0.25);
  transform: translateY(-1px);
}

.product-button[aria-pressed="true"]:hover,
.product-button.is-active:hover {
  background: #005a99;
  border-color: #005a99;
}

.product-button__name {
  display: block;
  text-align: center;
  line-height: 1.2;
}

.plan-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.plan-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 6px;
  border: 2px solid var(--calc-border);
  border-radius: 10px;
  background: #fff;
  color: #253449;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 42px;
}

.plan-button:hover {
  border-color: var(--calc-blue);
  background: #f7f9fc;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 106, 179, 0.15);
}

.plan-button:focus {
  outline: 2px solid rgba(0, 106, 179, 0.3);
  outline-offset: 2px;
  border-color: var(--calc-blue);
}

.plan-button[aria-pressed="true"],
.plan-button.is-active {
  background: var(--calc-blue);
  border-color: var(--calc-blue);
  color: #fff;
  box-shadow: 0 6px 16px rgba(0, 106, 179, 0.25);
  transform: translateY(-1px);
}

.plan-button[aria-pressed="true"]:hover,
.plan-button.is-active:hover {
  background: #005a99;
  border-color: #005a99;
}

.plan-button__name {
  display: block;
  text-transform: capitalize;
}

.sockets-buttons {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
}

.socket-button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border: 2px solid var(--calc-border);
  border-radius: 8px;
  background: #fff;
  color: #253449;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 32px;
  min-width: 40px;
}

.socket-button:hover {
  border-color: var(--calc-blue);
  background: #f7f9fc;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 106, 179, 0.15);
}

.socket-button:focus {
  outline: 2px solid rgba(0, 106, 179, 0.3);
  outline-offset: 2px;
  border-color: var(--calc-blue);
}

.socket-button[aria-pressed="true"],
.socket-button.is-active {
  background: var(--calc-blue);
  border-color: var(--calc-blue);
  color: #fff;
  box-shadow: 0 6px 16px rgba(0, 106, 179, 0.25);
  transform: translateY(-1px);
}

.socket-button[aria-pressed="true"]:hover,
.socket-button.is-active:hover {
  background: #005a99;
  border-color: #005a99;
}

.duration-buttons {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
}

.duration-button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border: 2px solid var(--calc-border);
  border-radius: 8px;
  background: #fff;
  color: #253449;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 32px;
  white-space: nowrap;
}

.duration-button:hover {
  border-color: var(--calc-blue);
  background: #f7f9fc;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 106, 179, 0.15);
}

.duration-button:focus {
  outline: 2px solid rgba(0, 106, 179, 0.3);
  outline-offset: 2px;
  border-color: var(--calc-blue);
}

.duration-button[aria-pressed="true"],
.duration-button.is-active {
  background: var(--calc-blue);
  border-color: var(--calc-blue);
  color: #fff;
  box-shadow: 0 6px 16px rgba(0, 106, 179, 0.25);
  transform: translateY(-1px);
}

.duration-button[aria-pressed="true"]:hover,
.duration-button.is-active:hover {
  background: #005a99;
  border-color: #005a99;
}

@media (max-width: 768px) {
  .product-buttons {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  .plan-buttons {
    grid-template-columns: 1fr;
  }
}

.plan-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.plan-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: #eef2f8;
  color: #39495d;
  border: 1px solid transparent;
}

.plan-badge.is-active {
  background: var(--calc-blue);
  color: #fff;
  border-color: var(--calc-blue);
}

.summary-card {
  position: sticky;
  top: 80px;
}

.summary-grid {
  display: grid;
  gap: 12px;
}

.summary-pair {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.85rem;
}

.summary-label {
  color: #5a6a7a;
  font-weight: 500;
}

.summary-value {
  color: #0a1b2b;
  font-weight: 600;
  text-align: right;
}

.summary-divider {
  height: 1px;
  background: var(--calc-border);
  margin: 3px 0;
}

.summary-note {
  margin: 16px 0 6px;
  font-size: 0.75rem;
  color: var(--calc-muted);
}

.summary-alert {
  font-size: 0.75rem;
  color: var(--calc-error);
  background: rgba(214, 69, 69, 0.08);
  border: 1px solid rgba(214, 69, 69, 0.3);
  border-radius: 10px;
  padding: 8px 12px;
  margin: 6px 0 12px;
}

.summary-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.btn-primary,
.btn-secondary,
.btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 8px 16px;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--calc-accent);
  color: #1a1a1a;
  border-color: var(--calc-accent);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(242, 148, 0, 0.25);
}

.btn-secondary {
  background: #f1f4f9;
  color: #0a1b2b;
  border-color: var(--calc-border);
}

.btn-secondary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(10, 27, 43, 0.12);
}

.btn-accent {
  background: var(--calc-blue);
  color: #fff;
  border-color: var(--calc-blue);
}

.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 106, 179, 0.25);
}

.is-disabled {
  opacity: 0.5;
  pointer-events: none;
}

@media (max-width: 1024px) {
  .calc-layout {
    grid-template-columns: 1fr;
  }

  .summary-card {
    position: static;
  }
}

@media (max-width: 640px) {
  .plans-table th,
  .plans-table td {
    padding: 12px;
  }

  .calc-card {
    padding: 22px;
  }

  .summary-pair {
    flex-direction: column;
    align-items: flex-start;
  }

  .summary-value {
    text-align: left;
  }
}