/* ScreenMan materials calculator — roof / wall shop layout */
.sm-calc {
  --smc-ink: #ebebf0;
  --smc-muted: #9a9aa3;
  --smc-orange: #ff6600;
  --smc-line: rgba(255, 255, 255, 0.12);
  --smc-panel: #141416;
  --smc-soft: #1c1c1f;
  display: grid;
  grid-template-columns: minmax(280px, 1.05fr) minmax(300px, 0.95fr);
  gap: 24px;
  align-items: start;
  color: var(--smc-ink);
}
.sm-calc__viz {
  position: sticky;
  top: 88px;
  border: 2px solid var(--smc-orange);
  background: linear-gradient(165deg, #1a1a1e 0%, #0c0c0e 70%);
  padding: 20px 16px 16px;
  min-height: 360px;
}
.sm-calc__viz-label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--smc-muted);
}
.sm-calc__svg {
  width: 100%;
  height: auto;
  display: block;
  max-height: 420px;
}
.sm-calc__face {
  cursor: pointer;
  transition: fill 0.15s ease, stroke 0.15s ease;
}
.sm-calc__face--roof {
  fill: rgba(255, 102, 0, 0.18);
  stroke: var(--smc-orange);
  stroke-width: 2.5;
}
.sm-calc__face--wall {
  fill: rgba(235, 235, 245, 0.08);
  stroke: rgba(235, 235, 245, 0.45);
  stroke-width: 2.5;
}
.sm-calc__face.is-on {
  fill: rgba(255, 102, 0, 0.42);
  stroke: #ff8a33;
  stroke-width: 3.5;
}
.sm-calc__face:hover,
.sm-calc__face:focus-visible {
  fill: rgba(255, 102, 0, 0.32);
  outline: none;
}
.sm-calc__face-caption {
  fill: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  pointer-events: none;
}
.sm-calc__shop {
  border: 1px solid var(--smc-line);
  background: var(--smc-panel);
  padding: 18px 16px 20px;
}
.sm-calc__tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 14px;
}
.sm-calc__tab {
  border: 2px solid var(--smc-line);
  background: transparent;
  color: var(--smc-ink);
  padding: 12px 10px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 13px;
}
.sm-calc__tab.is-on {
  border-color: var(--smc-orange);
  background: rgba(255, 102, 0, 0.16);
  color: #fff;
}
.sm-calc__hint {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--smc-muted);
}
.sm-calc__hint strong { color: var(--smc-ink); }
.sm-calc__catalog[hidden] { display: none !important; }
.sm-sku {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--smc-line);
}
.sm-sku:last-of-type { border-bottom: 0; }
.sm-sku__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}
.sm-sku__sub {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--smc-muted);
  line-height: 1.35;
}
.sm-sku__price {
  font-weight: 700;
  font-size: 15px;
  white-space: nowrap;
  color: #fff;
}
.sm-sku__price.is-quote {
  font-size: 12px;
  font-weight: 600;
  color: var(--smc-orange);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.sm-sku__add {
  width: 44px;
  height: 44px;
  border: 2px solid var(--smc-orange);
  background: var(--smc-orange);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}
.sm-sku__add:hover,
.sm-sku__add:focus-visible {
  background: #ff7a1a;
  outline: none;
}
.sm-calc__mesh {
  margin: 16px 0 8px;
  padding: 12px;
  background: var(--smc-soft);
  border: 1px solid var(--smc-line);
}
.sm-calc__mesh-title {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--smc-muted);
}
.sm-calc__mesh-list {
  display: grid;
  gap: 6px;
}
.sm-calc__mesh-list label {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  font-size: 13px;
  line-height: 1.35;
  cursor: pointer;
  color: var(--smc-ink);
}
.sm-calc__mesh-list input {
  margin-top: 3px;
  accent-color: var(--smc-orange);
}
.sm-calc__mesh-list small {
  display: block;
  color: var(--smc-muted);
  font-size: 11px;
}
.sm-calc__cart {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--smc-line);
}
.sm-calc__cart h3 {
  margin: 0 0 10px;
  font-size: 16px;
}
.sm-calc__empty {
  margin: 0;
  font-size: 13px;
  color: var(--smc-muted);
}
.sm-cart-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: start;
  padding: 10px 0;
  border-bottom: 1px solid var(--smc-line);
  font-size: 13px;
}
.sm-cart-row__meta {
  color: var(--smc-muted);
  font-size: 12px;
  margin-top: 2px;
}
.sm-cart-row__right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}
.sm-cart-qty {
  display: inline-flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--smc-line);
}
.sm-cart-qty button {
  width: 32px;
  height: 32px;
  border: 0;
  background: transparent;
  color: var(--smc-ink);
  cursor: pointer;
  font-size: 18px;
}
.sm-cart-qty span {
  min-width: 24px;
  text-align: center;
  font-weight: 700;
}
.sm-cart-row__price { font-weight: 700; white-space: nowrap; }
.sm-cart-row__x {
  border: 0;
  background: transparent;
  color: var(--smc-muted);
  cursor: pointer;
  font-size: 12px;
  text-decoration: underline;
}
.sm-calc__total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: 14px 0 6px;
  font-size: 15px;
}
.sm-calc__total strong {
  font-size: 22px;
  color: #fff;
}
.sm-calc__est {
  margin: 0 0 14px;
  font-size: 12px;
  color: var(--smc-muted);
  line-height: 1.4;
}
.sm-calc .form--short label { color: var(--smc-muted); font-size: 12px; }
.sm-calc .form--short input {
  width: 100%;
  margin: 4px 0 10px;
  padding: 10px 12px;
  border: 1px solid var(--smc-line);
  background: #0e0e10;
  color: var(--smc-ink);
  font: inherit;
}
.sm-calc .form--short .btn-primary,
.sm-calc .form--short button[type="submit"] {
  width: 100%;
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 16px;
  border: 0;
  background: var(--smc-orange);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.sm-calc .form--short .btn-primary:disabled,
.sm-calc .form--short button[type="submit"]:disabled {
  opacity: 0.55;
  cursor: wait;
}
.sm-calc .form-msg {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--smc-muted);
}
.sm-calc .form-msg.is-ok { color: #7ddea0; }
.sm-calc .hp {
  position: absolute;
  left: -9999px;
  height: 1px;
  width: 1px;
  overflow: hidden;
}
.sm-calc .quiet {
  font-size: 12px;
  color: var(--smc-muted);
}
@media (max-width: 900px) {
  .sm-calc {
    grid-template-columns: 1fr;
  }
  .sm-calc__viz {
    position: static;
    min-height: 0;
  }
}
@media (max-width: 560px) {
  .sm-sku {
    grid-template-columns: 1fr auto;
  }
  .sm-sku__price {
    grid-column: 1;
  }
  .sm-sku__add {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
  }
}