/* ВИЭС АКБ calculator — modal + inline */

.vies-akb-modal {
  --akb-navy: #062234;
  --akb-navy-2: #0a3550;
  --akb-accent: #106ac3;
  --akb-accent-soft: #e8f2fd;
  --akb-surface: #f3f7fb;
  --akb-line: rgba(6, 34, 52, 0.09);
  --akb-text: #1e1e1e;
  --akb-muted: #5b6b77;
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(12px, 2vw, 28px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s ease, visibility 0.28s ease;
}

.vies-akb-modal.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.vies-akb-modal__backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, rgba(16, 106, 195, 0.35), transparent 55%),
    rgba(6, 34, 52, 0.66);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.vies-akb-modal__panel {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: min(1180px, 100%);
  max-height: min(92vh, 920px);
  overflow: hidden;
  background: #fff;
  color: var(--akb-text);
  box-shadow:
    0 8px 24px rgba(6, 34, 52, 0.12),
    0 32px 80px rgba(6, 34, 52, 0.28);
  transform: translateY(16px) scale(0.985);
  opacity: 0;
  transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.28s ease;
}

.vies-akb-modal.is-open .vies-akb-modal__panel {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.vies-akb-modal__header {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 28px 20px;
  background:
    linear-gradient(125deg, var(--akb-navy) 0%, var(--akb-navy-2) 48%, #0d4a72 100%);
  color: #fff;
  border-bottom: 3px solid var(--akb-accent);
}

.vies-akb-modal__eyebrow {
  display: none;
}

.vies-akb-modal__title {
  margin: 0;
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: #fff;
}

.vies-akb-modal__subtitle {
  margin: 8px 0 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  min-height: 1.2em;
}

.vies-akb-modal__close {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.vies-akb-modal__close:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.35);
}

.vies-akb-modal__scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  background:
    radial-gradient(ellipse 80% 40% at 0% 0%, rgba(16, 106, 195, 0.08), transparent 50%),
    linear-gradient(180deg, #eaf1f7 0%, #f5f8fb 140px, #fff 320px);
}

.vies-akb-modal__body {
  padding: 22px 28px 36px;
}

.vies-akb-modal__loading {
  margin: 24px 0;
  color: var(--akb-muted);
}

.vies-akb-modal__body.is-calculating .vies-akb__kpi,
.vies-akb-modal__body.is-calculating .vies-akb__results,
.vies-akb-modal__body.is-calculating .vies-akb__battery {
  opacity: 0.55;
  transition: opacity 0.15s ease;
}

body.vies-akb-modal-open {
  overflow: hidden;
}

/* —— Content —— */

.vies-akb {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.vies-akb__alerts:empty {
  display: none;
}

.vies-akb__kpi {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.vies-akb__kpi-item {
  position: relative;
  padding: 18px 18px 16px 20px;
  background: #fff;
  border: 1px solid rgba(16, 106, 195, 0.12);
  box-shadow: 0 10px 28px rgba(6, 34, 52, 0.05);
  overflow: hidden;
}

.vies-akb__kpi-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--akb-accent);
}

.vies-akb__kpi-item--warn::before {
  background: #d97706;
}

.vies-akb__kpi-item--error::before {
  background: #dc2626;
}

.vies-akb__kpi-label {
  display: block;
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--akb-muted);
}

.vies-akb__kpi-value {
  position: relative;
  z-index: 1;
  display: block;
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--akb-navy);
  font-variant-numeric: tabular-nums;
}

.vies-akb__kpi-unit {
  margin-left: 5px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--akb-navy);
  opacity: 0.72;
}

.vies-akb__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 16px;
  align-items: stretch;
}

.vies-akb__section {
  min-width: 0;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #fff;
  border: 1px solid var(--akb-line);
  padding: 0;
  box-shadow: 0 12px 32px rgba(6, 34, 52, 0.04);
  overflow: visible;
}

.vies-akb__section--wide {
  height: auto;
  box-shadow: 0 12px 32px rgba(6, 34, 52, 0.04);
}

.vies-akb__section-head {
  flex: 0 0 auto;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin: 0;
  padding: 14px 20px;
  background: rgba(16, 106, 195, 0.08);
  border-bottom: 1px solid var(--akb-line);
}

.vies-akb__section h3 {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  color: var(--akb-navy);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.vies-akb__section-note {
  margin: 0;
  font-size: 12px;
  color: var(--akb-muted);
}

.vies-akb__section h4 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 650;
  color: var(--akb-navy);
}

.vies-akb__fields {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 16px 16px;
}

.vies-akb__field {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  padding: 8px 6px;
  border-radius: 0;
  transition: background 0.15s ease;
}

.vies-akb__field:hover {
  background: rgba(16, 106, 195, 0.03);
}

.vies-akb__field > span {
  color: var(--akb-muted);
  line-height: 1.35;
}

.vies-akb__field select,
.vies-akb__field input {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 1px solid rgba(6, 34, 52, 0.14);
  background: var(--akb-surface);
  font: inherit;
  color: var(--akb-navy);
  font-weight: 600;
  box-sizing: border-box;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.vies-akb__field select:hover,
.vies-akb__field input:hover {
  border-color: rgba(16, 106, 195, 0.45);
  background: #fff;
}

.vies-akb__field select:focus,
.vies-akb__field input:focus {
  outline: none;
  border-color: var(--akb-accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(16, 106, 195, 0.15);
}

.vies-akb__hint {
  display: none;
}

.vies-akb__results {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  padding: 8px 16px 16px;
}

.vies-akb__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 10px 4px;
  border-bottom: 1px solid rgba(6, 34, 52, 0.1);
  font-size: 13px;
}

.vies-akb__results .vies-akb__row:not(.vies-akb__row--accent) {
  border-bottom: 1px solid rgba(6, 34, 52, 0.1);
}

.vies-akb__row--accent {
  margin: 8px 0 0;
  padding: 12px;
  background: var(--akb-accent-soft);
  border: 1px solid rgba(16, 106, 195, 0.14);
}

.vies-akb__row--accent + .vies-akb__row--accent {
  margin-top: 8px;
}

.vies-akb__row--accent .vies-akb__row-value {
  color: var(--akb-accent);
  font-size: 15px;
}

.vies-akb__row-label {
  color: var(--akb-muted);
}

.vies-akb__row-label em {
  font-style: normal;
  color: #3d4f5c;
  margin-left: 4px;
  font-size: 12px;
  font-weight: 500;
}

.vies-akb__row-value {
  font-weight: 700;
  color: var(--akb-navy);
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.vies-akb__battery {
  padding: 16px 18px 18px;
}

.vies-akb__bat-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.vies-akb__bat-panel {
  background: var(--akb-surface);
  border: 1px solid rgba(16, 106, 195, 0.1);
  padding: 14px 16px 10px;
}

.vies-akb__bat-panel h4 {
  margin: 0 0 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(6, 34, 52, 0.1);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--akb-navy);
}

.vies-akb__bat-panel .vies-akb__row {
  padding: 8px 0;
  font-size: 12.5px;
  border-bottom: 1px solid rgba(6, 34, 52, 0.1);
}

.vies-akb__bat-panel .vies-akb__row:last-child {
  border-bottom: 0;
}

.vies-akb__desc {
  margin: 14px 0 0;
  padding: 12px 14px;
  background: var(--akb-accent-soft);
  border-left: 3px solid var(--akb-accent);
  font-size: 13px;
  color: var(--akb-navy);
  line-height: 1.45;
}

.vies-akb__error {
  margin: 0 0 8px;
  padding: 12px 14px;
  background: #fef2f2;
  border-left: 3px solid #dc2626;
  color: #991b1b;
  font-size: 13px;
  font-weight: 600;
}

.vies-akb__warn {
  margin: 0 0 8px;
  padding: 12px 14px;
  background: #fff7ed;
  border-left: 3px solid #d97706;
  color: #9a3412;
  font-size: 13px;
}

.vies-akb-calc-open {
  cursor: pointer;
}

.product-card-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100%;
}

.product-card-wrap .product-card {
  flex: 1;
}

.product-card-wrap__actions {
  display: flex;
  gap: 8px;
  padding: 0 32px 24px;
  background: #fff;
  margin-top: -8px;
}

.product-card-wrap__actions .vies-akb-calc-open {
  flex: 1;
  font-size: 13px;
  padding: 10px 14px;
}

/* Inline page calculator */
.vies-akb-inline {
  width: 100%;
}

.vies-akb-inline .vies-akb {
  gap: 20px;
}

.vies-akb-inline .vies-akb__section {
  box-shadow: 0 14px 40px rgba(6, 34, 52, 0.06);
}

@media (max-width: 960px) {
  .vies-akb__kpi {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .vies-akb__grid,
  .vies-akb__bat-cols {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .vies-akb-modal {
    padding: 0;
    align-items: stretch;
  }

  .vies-akb-modal__panel {
    width: 100%;
    max-height: 100vh;
    max-height: 100dvh;
  }

  .vies-akb-modal__header,
  .vies-akb-modal__body {
    padding-left: 16px;
    padding-right: 16px;
  }

  .vies-akb__field {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .vies-akb__kpi {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .vies-akb__kpi-value {
    font-size: 20px;
  }
}