/* Калькулятор сборок — CYBER SPACE */

.calc-hero {
  position: relative;
  z-index: 1;
  padding: calc(var(--nav-total) + 2.5rem) clamp(1rem, 4vw, 3rem) 2rem;
  padding-left: max(clamp(1rem, 4vw, 3rem), var(--safe-left));
  padding-right: max(clamp(1rem, 4vw, 3rem), var(--safe-right));
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

.calc-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5vw, 2.85rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
  background: linear-gradient(120deg, var(--white) 20%, var(--purple-bright));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.calc-lead {
  margin: 0;
  color: var(--muted-light);
  font-size: 1.02rem;
  line-height: 1.65;
}

.calc-main {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 max(clamp(1rem, 4vw, 3rem), var(--safe-left)) max(3rem, var(--safe-bottom)) max(clamp(1rem, 4vw, 3rem), var(--safe-right));
}

.calc-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.calc-toolbar-label {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.calc-market-toggle {
  display: inline-flex;
  padding: 0.25rem;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  gap: 0.25rem;
}

.calc-market-btn {
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.65rem 1.1rem;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--muted-light);
  cursor: pointer;
  transition: background 0.25s, color 0.25s, box-shadow 0.25s;
}

.calc-market-btn.is-active {
  background: linear-gradient(135deg, var(--purple-bright), var(--purple));
  color: var(--text-on-accent);
  box-shadow: 0 4px 18px var(--purple-glow);
}

.calc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 300px) minmax(260px, 0.82fr);
  gap: 1.25rem;
  align-items: start;
}

/* ——— PC visual ——— */
.calc-pc-stage {
  position: sticky;
  top: calc(var(--nav-total) + 1rem);
  padding: 1rem;
  background: linear-gradient(165deg, #1c3454 0%, var(--surface) 45%, #0f1f38 100%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-glow);
}

.calc-pc-stage-title {
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple-bright);
  text-align: center;
  margin: 0 0 0.85rem;
}

.calc-pc-case {
  position: relative;
  min-height: 420px;
  padding: 0.75rem;
  border: 2px solid rgba(96, 165, 250, 0.35);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(10, 22, 40, 0.5) 0%, rgba(15, 31, 56, 0.85) 100%);
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.35);
}

.calc-pc-case::before {
  content: "";
  position: absolute;
  top: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 42%;
  height: 6px;
  border-radius: 999px;
  background: rgba(96, 165, 250, 0.25);
}

.pc-motherboard {
  position: absolute;
  top: 18%;
  left: 8%;
  right: 8%;
  height: 38%;
  border: 1px dashed rgba(96, 165, 250, 0.28);
  border-radius: 0.45rem;
  background: rgba(19, 34, 56, 0.65);
}

.pc-slot {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  padding: 0.35rem 0.4rem;
  border-radius: 0.45rem;
  border: 1px dashed rgba(148, 163, 184, 0.45);
  background: rgba(10, 22, 40, 0.55);
  text-align: center;
  cursor: default;
  transition:
    border-color 0.25s,
    background 0.25s,
    box-shadow 0.25s,
    transform 0.25s;
}

.pc-slot-icon {
  font-family: var(--font-display);
  font-size: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--muted);
  line-height: 1;
}

.pc-slot-label {
  font-family: var(--font-display);
  font-size: 0.48rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.1;
}

.pc-slot-name {
  font-size: 0.58rem;
  font-weight: 600;
  color: var(--muted-light);
  line-height: 1.2;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.pc-slot.is-filled {
  border-style: solid;
  border-color: rgba(96, 165, 250, 0.65);
  background: rgba(37, 99, 235, 0.18);
  box-shadow: 0 0 16px rgba(37, 99, 235, 0.2);
}

.pc-slot.is-filled .pc-slot-icon,
.pc-slot.is-filled .pc-slot-label {
  color: var(--purple-bright);
}

.pc-slot.is-filled .pc-slot-name {
  color: var(--white);
}

.pc-slot.is-empty:hover,
.pc-slot.is-empty.is-highlight-missing,
.pc-slot.is-targeted {
  border-color: rgba(248, 113, 113, 0.95);
  background: rgba(127, 29, 29, 0.35);
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.35);
}

.pc-slot.is-empty:hover .pc-slot-icon,
.pc-slot.is-empty:hover .pc-slot-label,
.pc-slot.is-empty.is-highlight-missing .pc-slot-icon,
.pc-slot.is-empty.is-highlight-missing .pc-slot-label {
  color: #fca5a5;
}

.pc-slot.is-empty:hover .pc-slot-name,
.pc-slot.is-empty.is-highlight-missing .pc-slot-name {
  color: #fecaca;
}

.pc-slot--cooler {
  top: 4%;
  left: 50%;
  transform: translateX(-50%);
  width: 34%;
  min-height: 52px;
}

.pc-slot--cooler.is-aio {
  border-color: rgba(56, 189, 248, 0.7);
  background: rgba(14, 116, 144, 0.25);
}

.pc-slot--cpu {
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 38%;
  min-height: 46px;
}

.pc-slot--ram {
  top: 52%;
  left: 6%;
  width: 28%;
  min-height: 42px;
}

.pc-slot--mb {
  top: 52%;
  right: 6%;
  width: 28%;
  min-height: 42px;
}

.pc-slot--storage {
  bottom: 8%;
  left: 50%;
  transform: translateX(-50%);
  width: 44%;
  min-height: 38px;
}

.pc-slot--gpu {
  bottom: 22%;
  left: 6%;
  right: 6%;
  min-height: 56px;
}

.pc-slot--psu {
  bottom: 4%;
  left: 50%;
  transform: translateX(-50%);
  width: 48%;
  min-height: 44px;
}

.calc-field.is-highlighting-empty select {
  border-color: rgba(248, 113, 113, 0.85);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.calc-field.is-highlighting-empty {
  position: relative;
}

.calc-field.is-highlighting-empty::after {
  content: "Не выбрано";
  position: absolute;
  right: 0;
  top: 0;
  font-family: var(--font-display);
  font-size: 0.52rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #f87171;
}

.calc-pc-hint {
  margin: 0.75rem 0 0;
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.45;
}

.calc-panel {
  background: linear-gradient(165deg, #1c3454 0%, var(--surface) 45%, #0f1f38 100%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  box-shadow: var(--card-glow);
}

.calc-panel + .calc-panel {
  margin-top: 1rem;
}

.calc-panel-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple-bright);
  margin: 0 0 1rem;
}

.calc-brand-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.calc-brand-tab {
  flex: 1;
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.65rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--muted-light);
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s, background 0.25s;
}

.calc-brand-tab.is-active {
  border-color: var(--purple-bright);
  color: var(--white);
  background: rgba(37, 99, 235, 0.12);
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 0.85rem;
}

.calc-field:last-child {
  margin-bottom: 0;
}

.calc-field label {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.calc-field select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--white);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 2.5rem 0.85rem 0.9rem;
  min-height: var(--touch-min);
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--purple-bright) 50%),
    linear-gradient(135deg, var(--purple-bright) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) calc(50% + 2px),
    calc(100% - 12px) calc(50% + 2px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  cursor: pointer;
}

.calc-field select:focus-visible {
  outline: none;
  border-color: var(--purple-bright);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.calc-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.calc-check {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 0.5rem;
  font-size: 0.88rem;
  color: var(--muted-light);
  cursor: pointer;
}

.calc-check input {
  width: 18px;
  height: 18px;
  accent-color: var(--purple-bright);
}

.calc-hint {
  margin: 0.65rem 0 0;
  font-size: 0.78rem;
  color: var(--purple-bright);
  min-height: 1.2em;
}

.calc-summary-wrap {
  position: sticky;
  top: calc(var(--nav-total) + 1rem);
}

.calc-summary {
  background: linear-gradient(165deg, #1c3454 0%, var(--surface) 42%, #0f1f38 100%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--card-glow);
}

.calc-summary::before {
  content: "";
  display: block;
  height: 3px;
  margin: -1.5rem -1.5rem 1.25rem;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, transparent, var(--purple-bright) 40%, #93c5fd 50%, var(--purple-bright) 60%, transparent);
}

.calc-summary-kicker {
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.calc-summary-market {
  font-size: 0.82rem;
  color: var(--purple-bright);
  margin-bottom: 0.75rem;
}

.calc-summary-total {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.65rem, 4vw, 2.2rem);
  line-height: 1.1;
  background: var(--price-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.35rem;
}

.calc-summary-range {
  font-size: 0.82rem;
  color: var(--muted-light);
  margin-bottom: 1.25rem;
}

.calc-summary-list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  max-height: 320px;
  overflow: auto;
}

.calc-summary-row {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
}

.calc-summary-row:last-child {
  border-bottom: none;
}

.calc-summary-row-top {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: baseline;
}

.calc-summary-label {
  font-family: var(--font-display);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.calc-summary-price {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
}

.calc-summary-name {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.78rem;
  color: var(--muted-light);
  line-height: 1.4;
}

.calc-missing {
  color: var(--muted);
}

.calc-wa-btn {
  width: 100%;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 1rem 1.25rem;
  min-height: var(--touch-min);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  color: var(--text-on-accent);
  background: linear-gradient(135deg, #25d366, #128c7e);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.25);
  transition: transform 0.25s, box-shadow 0.25s, opacity 0.25s;
}

.calc-wa-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(37, 211, 102, 0.32);
}

.calc-wa-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.calc-note {
  margin: 0.85rem 0 0;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.5;
}

.calc-actions-bottom {
  text-align: center;
  margin-top: 2rem;
}

.calc-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--surface);
  color: var(--purple-bright) !important;
  padding: 0.85rem 1.35rem;
  min-height: var(--touch-min);
  border-radius: 999px;
  box-sizing: border-box;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: background 0.25s, border-color 0.25s;
}

.calc-back:hover {
  background: rgba(30, 64, 175, 0.08);
  border-color: var(--purple-bright);
}

@media (max-width: 1100px) {
  .calc-layout {
    grid-template-columns: 1fr 1fr;
  }

  .calc-pc-stage {
    grid-column: 1 / -1;
    order: -1;
    position: static;
  }

  .calc-pc-case {
    min-height: 360px;
    max-width: 420px;
    margin: 0 auto;
  }
}

@media (max-width: 960px) {
  .calc-layout {
    grid-template-columns: 1fr;
  }

  .calc-pc-stage {
    order: 0;
  }

  .calc-summary-wrap {
    position: static;
  }
}

@media (max-width: 640px) {
  .calc-grid-2 {
    grid-template-columns: 1fr;
  }

  .calc-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .calc-market-toggle {
    width: 100%;
  }

  .calc-market-btn {
    flex: 1;
  }
}