/* ==========================================================================
   PC Configurator v3 - Frontend Styles
   ========================================================================== */

:root {
  --pc-bg: #ffffff;
  --pc-bg-soft: #f8fafc;
  --pc-text: #0f172a;
  --pc-text-soft: #475569;
  --pc-border: #e2e8f0;
  --pc-primary: #2563eb;
  --pc-primary-ink: #ffffff;
  --pc-warn: #f59e0b;
  --pc-danger: #ef4444;
  --pc-ok-bg: #f6ffed;
  --pc-ok-border: #b7eb8f;

  --pc-radius: 12px;
  --pc-radius-lg: 16px;

  --pc-shadow: 0 1px 2px rgba(0,0,0,.06), 0 4px 12px rgba(0,0,0,.05);
  --pc-shadow-lg: 0 8px 30px rgba(0,0,0,.08);

  --pc-gap: 16px;
  --pc-gap-lg: 24px;

  --pc-font: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

.pc-conf { font-family: var(--pc-font); color: var(--pc-text); }
.pc-conf * { box-sizing: border-box; }
.pc-conf img { max-width: 100%; height: auto; display: block; }
.pc-conf button { cursor: pointer; }

/* Layout */
.pc-layout {
  display: grid;
  grid-template-columns: 260px 1fr 340px;
  gap: var(--pc-gap-lg);
  align-items: start;
}
@media (max-width: 1200px) {
  .pc-layout { grid-template-columns: 220px 1fr; }
  .pc-summary { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
  .pc-layout { grid-template-columns: 1fr; }
  .pc-sidebar { order: 1; }
  .pc-main { order: 2; }
  .pc-summary { order: 3; }
}

.pc-sidebar, .pc-summary {
  background: var(--pc-bg);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  padding: 16px;
  box-shadow: var(--pc-shadow);
  position: sticky;
  top: 16px;
}
.pc-sidebar__title,
.pc-summary__title { margin: 0 0 12px; font-size: 16px; font-weight: 700; }

.pc-main { display: grid; gap: var(--pc-gap); }

/* Steps (sidebar) */
.pc-steps { display: grid; gap: 8px; }
.pc-step {
  appearance: none;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--pc-bg-soft);
  border: 1px solid var(--pc-border);
  color: var(--pc-text);
  transition: background .18s ease, border-color .18s ease, transform .05s ease;
}
.pc-step:hover { background: #eef2f7; }
.pc-step.is-active {
  background: #e8f0ff;
  border-color: #c7dbff;
}

/* Dialog (hints / issues) */
.pc-main__dialog .pc-dialog {
  background: var(--pc-bg);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  padding: 12px 14px;
  box-shadow: var(--pc-shadow);
  line-height: 1.45;
}
.pc-dialog__row { padding: 8px 0; border-top: 1px dashed var(--pc-border); }
.pc-dialog__row:first-child { border-top: 0; }
.pc-dialog__ok {
  padding: 10px 12px; background: var(--pc-ok-bg); border: 1px solid var(--pc-ok-border);
  border-radius: 10px;
}

/* Grid + Cards */
.pc-main__grid { display: grid; gap: 12px; }
.pc-main-title { margin: 0 0 6px; font-size: 18px; font-weight: 800; }

.pc-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--pc-gap);
}
@media (max-width: 1200px) { .pc-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 860px)  { .pc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px)  { .pc-grid { grid-template-columns: 1fr; } }

.pc-card {
  display: grid;
  grid-template-rows: 150px auto auto auto;
  gap: 8px;
  background: var(--pc-bg);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  padding: 10px;
  box-shadow: var(--pc-shadow);
  transition: transform .08s ease, box-shadow .18s ease, border-color .18s ease;
}
.pc-card:hover { transform: translateY(-1px); box-shadow: var(--pc-shadow-lg); }
.pc-card.is-selected { border-color: #9ec1ff; box-shadow: 0 0 0 3px rgba(37, 99, 235, .12), var(--pc-shadow-lg); }

.pc-card__image {
  background: var(--pc-bg-soft);
  border: 1px solid var(--pc-border);
  border-radius: 10px;
  overflow: hidden;
  display: grid; place-items: center;
}
.pc-card__title {
  margin: 0; font-size: 14px; font-weight: 700; color: var(--pc-text);
  line-height: 1.35;
}
.pc-card__price { color: var(--pc-text-soft); font-weight: 600; min-height: 22px; }

.pc-card__actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.pc-check { display: inline-flex; align-items: center; gap: 8px; justify-self: end; }
.pc-check__input { width: 18px; height: 18px; }
.pc-check__label { font-size: 13px; }

/* Qty */
.pc-qty { display: inline-grid; grid-template-columns: 32px 1fr 32px; gap: 4px; align-items: center; }
.pc-qty__btn {
  width: 32px; height: 32px; border-radius: 8px;
  border: 1px solid var(--pc-border);
  background: var(--pc-bg-soft);
  transition: background .18s ease, border-color .18s ease, opacity .18s ease;
}
.pc-qty__btn:hover { background: #eef2f7; }
.pc-qty__btn[disabled] { opacity: .5; cursor: not-allowed; }
.pc-qty__input {
  width: 64px; height: 32px; padding: 0 8px; text-align: center;
  border-radius: 8px; border: 1px solid var(--pc-border);
  background: var(--pc-bg);
}

/* Badges */
.pc-badge {
  display: inline-flex; align-items: center;
  font-size: 12px; line-height: 1; font-weight: 700;
  border-radius: 999px; padding: 6px 8px;
  background: #eef2f7; border: 1px solid var(--pc-border); color: #1f2937;
}
.pc-badge--warn { background: #fff7ed; border-color: #fed7aa; color: #9a3412; }
.pc-badge--danger { background: #fff1f2; border-color: #fecdd3; color: #881337; }

/* Aggregate pills (caps / usage) */
.pc-agg { margin-left: 10px; display: inline-flex; gap: 8px; flex-wrap: wrap; vertical-align: middle; }
.pc-agg__pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  line-height: 1.2;
  border: 1px solid var(--pc-border);
  background: var(--pc-bg-soft);
  white-space: nowrap;
}

/* Pagination */
.pc-main__pagination .pc-pagination-bar {
  display: grid; grid-template-columns: 1fr auto; gap: 8px;
  align-items: center;
  background: var(--pc-bg);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  padding: 10px 12px;
  box-shadow: var(--pc-shadow);
}
@media (max-width: 560px) {
  .pc-main__pagination .pc-pagination-bar { grid-template-columns: 1fr; gap: 10px; }
}

.pc-pagination-pages { display: flex; flex-wrap: wrap; gap: 6px; }
.pc-page {
  appearance: none; border: 1px solid var(--pc-border);
  background: var(--pc-bg-soft); padding: 6px 10px; border-radius: 8px;
  transition: background .18s ease, border-color .18s ease;
}
.pc-page:hover { background: #eef2f7; }
.pc-page.is-active { background: #e8f0ff; border-color: #c7dbff; }
.pc-page[disabled] { opacity: .5; cursor: not-allowed; }
.pc-pagination-meta { justify-self: end; color: var(--pc-text-soft); font-size: 13px; }
@media (max-width: 560px) { .pc-pagination-meta { justify-self: start; } }

.pc-main__pagination.is-loading { opacity: .6; pointer-events: none; }

/* Actions */
.pc-main__actions {
  display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end;
}
.pc-btn {
  appearance: none;
  border: 1px solid var(--pc-border);
  background: var(--pc-bg);
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 700;
  transition: background .18s ease, border-color .18s ease, transform .05s ease;
}
.pc-btn:hover { background: #eef2f7; }
.pc-btn:active { transform: translateY(1px); }
.pc-btn[disabled] { opacity: .6; cursor: not-allowed; }

.pc-btn--primary {
  background: var(--pc-primary);
  border-color: var(--pc-primary);
  color: var(--pc-primary-ink);
}
.pc-btn--primary:hover { filter: brightness(1.05); }

/* Summary */
.pc-summary-grid { display: grid; gap: 12px; }
.pc-summary-section {
  background: var(--pc-bg-soft);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius);
  padding: 10px;
}
.pc-summary-title { margin: 0 0 8px; font-size: 14px; font-weight: 800; }
.pc-summary-items { display: grid; gap: 8px; }
.pc-summary-item {
  display: grid; grid-template-columns: 44px 1fr; gap: 8px; align-items: center;
  background: var(--pc-bg); border: 1px solid var(--pc-border); border-radius: 10px; padding: 6px 8px;
}
.pc-summary-thumb {
  width: 44px; height: 44px; border-radius: 8px; overflow: hidden;
  display: grid; place-items: center; background: var(--pc-bg-soft); border: 1px solid var(--pc-border);
}
.pc-summary-name { font-size: 13px; font-weight: 700; color: var(--pc-text); }
.pc-summary-qty { font-size: 12px; color: var(--pc-text-soft); }
.pc-summary-empty { font-size: 12px; color: var(--pc-text-soft); }

/* Utilities */
.pc-hidden { display: none !important; }

/* Focus states */
.pc-step:focus,
.pc-btn:focus,
.pc-page:focus,
.pc-qty__btn:focus,
.pc-qty__input:focus,
.pc-check__input:focus-visible {
  outline: 2px solid #93c5fd;
  outline-offset: 1px;
}

/* Dark mode (prefers-color-scheme) – opt-in lightweight */
@media (prefers-color-scheme: dark) {
  :root {
    --pc-bg: #0b1220;
    --pc-bg-soft: #0f172a;
    --pc-text: #e5e7eb;
    --pc-text-soft: #cbd5e1;
    --pc-border: #1f2937;
    --pc-shadow: 0 1px 2px rgba(0,0,0,.35), 0 4px 12px rgba(0,0,0,.25);
    --pc-shadow-lg: 0 8px 30px rgba(0,0,0,.35);
  }
  .pc-card__image { background: #0b1324; }
  .pc-badge { background: #0b1324; color: #e5e7eb; }
  .pc-badge--warn { background: #2b1f09; color: #fde68a; border-color: #614115; }
  .pc-badge--danger { background: #2b0d13; color: #fecdd3; border-color: #7f1d1d; }
  .pc-agg__pill { background: #0b1324; }
  .pc-dialog__ok { background: #0f2012; border-color: #256a35; }
}

/* Small polish */
.pc-card__title, .pc-card__price, .pc-card__image { cursor: pointer; }
.pc-card__image img { object-fit: contain; width: 100%; height: 100%; }