/* AxonSystems Online Store — Gaming PC Builder.
   Reuses the storefront's existing tokens (css/style.css :root) rather than
   inventing a new palette — --navy-900, --ink-400/500, --border-soft,
   --white, --silver-100/200, --shadow-card/pop, --grad-brand, --success,
   --accent-deal, --radius-sm/md/lg, --font-display, --dur-fast,
   --ease-out-quart all come from there. */

.builder-hero {
  padding: 20px 0 4px;
  background: linear-gradient(180deg, rgba(11, 18, 36, 0.04), transparent);
}

.builder-hero__title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  margin: 6px 0 10px;
}

.builder-hero__sub {
  color: var(--ink-400);
  max-width: 640px;
  line-height: 1.6;
}

.builder-layout {
  display: flex;
  align-items: flex-start;
  gap: 28px;
}

/* ---------- Rail ---------- */
.builder-rail {
  width: 260px;
  flex-shrink: 0;
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.builder-step {
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  padding: 11px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink-500);
  cursor: pointer;
  font-family: var(--font-body);
  transition: background var(--dur-fast) ease, border-color var(--dur-fast) ease, color var(--dur-fast) ease;
}

.builder-step:hover {
  background: var(--silver-100);
}

.builder-step.is-active {
  background: var(--white);
  border-color: var(--border-soft);
  box-shadow: var(--shadow-card);
  color: var(--navy-900);
}

.builder-step__num {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--silver-200);
  color: var(--ink-500);
  display: grid;
  place-items: center;
  font-size: 0.72rem;
  font-weight: 700;
  transition: background var(--dur-fast) ease, color var(--dur-fast) ease;
}

.builder-step.is-active .builder-step__num {
  background: var(--grad-brand);
  color: #fff;
}

.builder-step.is-done .builder-step__num {
  background: var(--accent-success);
  color: #fff;
}

.builder-step__body {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.builder-step__label {
  font-size: 0.86rem;
  font-weight: 600;
}

.builder-step__picked {
  font-size: 0.74rem;
  color: var(--ink-500);
  font-weight: 400;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.builder-rail__total {
  margin-top: 10px;
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--navy-900);
  color: #fff;
}

.builder-rail__total-label {
  display: block;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #93a0c2;
  font-weight: 700;
}

.builder-rail__total-amt {
  display: block;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-top: 4px;
}

.builder-rail__total-count {
  display: block;
  font-size: 0.74rem;
  color: #93a0c2;
  margin-top: 2px;
}

/* ---------- Panel shell ---------- */
.builder-panel {
  flex: 1;
  min-width: 0;
}

.builder-panel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.builder-panel__head h2 {
  font-size: 1.3rem;
  margin: 0 0 2px;
}

.builder-panel__head p {
  margin: 0;
  color: var(--ink-500);
  font-size: 0.84rem;
}

.builder-note {
  font-size: 0.84rem;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  background: var(--grad-brand-soft);
  color: var(--blue-600);
}

.builder-note--warn {
  background: #fff3e0;
  color: #92400e;
}

/* ---------- Option grid ---------- */
.builder-opt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.builder-opt {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-soft);
  background: var(--white);
  cursor: pointer;
  font-family: var(--font-body);
  transition: transform var(--dur-fast) var(--ease-out-quart), box-shadow var(--dur-fast) ease, border-color var(--dur-fast) ease;
}

.builder-opt:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.builder-opt.is-selected {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(47, 111, 239, 0.16);
}

.builder-opt.is-pulsing {
  animation: builder-pulse 0.4s var(--ease-out-back);
}

@keyframes builder-pulse {
  0% { transform: scale(1); }
  40% { transform: scale(1.035); }
  100% { transform: scale(1); }
}

.builder-opt__check {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1.5px solid var(--border-soft);
  background: var(--white);
  color: transparent;
  display: grid;
  place-items: center;
  transition: background var(--dur-fast) ease, border-color var(--dur-fast) ease, color var(--dur-fast) ease;
}

.builder-opt.is-selected .builder-opt__check {
  background: var(--blue-500);
  border-color: var(--blue-500);
  color: #fff;
}

.builder-opt__img {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: cover;
  background: var(--silver-100);
}

.builder-opt__name {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--navy-900);
}

.builder-opt__sub {
  font-size: 0.78rem;
  color: var(--ink-500);
  line-height: 1.4;
  flex: 1;
}

.builder-opt__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 4px;
}

.builder-opt__price {
  font-weight: 700;
  font-size: 0.94rem;
  color: var(--navy-900);
}

/* Sept 2026 — wraps the price + (when on sale) the crossed-out compare
   price so both sit on one line without disturbing .builder-opt__row's own
   space-between layout. Pure layout only — the sale colors/strikethrough
   themselves come from store.css's .product-card__compare/.badge--sale,
   reused as-is. */
.builder-opt__price-group {
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}

.builder-badge {
  font-size: 0.66rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  overflow-wrap: break-word;
}

.builder-badge--good {
  background: var(--accent-success-soft);
  color: var(--accent-success);
}

.builder-badge--warn {
  background: #fff3e0;
  color: #92400e;
}

/* Sept 2026 — real fit-checking across the builder (case↔motherboard,
   case↔GPU, cooler↔case). --info is a neutral pill for purely descriptive
   specs (side panel, fan count, form factor); --rgb is a deliberately
   eye-catching accent — reuses the sitewide --grad-brand gradient (same
   one .badge--featured already uses elsewhere) rather than inventing a
   new color, shown only on genuinely RGB-capable cases. */
.builder-badge--info {
  background: var(--silver-100);
  color: var(--ink-500);
}

.builder-badge--rgb {
  background: var(--grad-brand);
  color: var(--navy-950);
}

.builder-opt__spec-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
}

.builder-skip {
  margin-top: 16px;
}

.builder-skip button {
  background: none;
  border: 1px dashed var(--border-strong);
  color: var(--ink-500);
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
}

.builder-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- Review step ---------- */
.builder-preview-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}

.builder-preview-tile {
  aspect-ratio: 1/1;
  border-radius: var(--radius-sm);
  border: 1.5px dashed var(--border-strong);
  display: grid;
  place-items: center;
  color: var(--silver-400);
  background: var(--silver-100);
  transition: color var(--dur-med) ease, border-color var(--dur-med) ease, background var(--dur-med) ease, transform var(--dur-med) var(--ease-out-back);
}

.builder-preview-tile svg {
  width: 55%;
  height: 55%;
}

.builder-preview-tile.is-filled {
  border-style: solid;
  border-color: transparent;
  background: var(--grad-brand);
  color: #fff;
  transform: scale(1.04);
}

@media (max-width: 700px) {
  .builder-preview-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.builder-review-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.builder-review-row {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 12px 16px;
}

.builder-review-row__icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  flex-shrink: 0;
  background: var(--silver-100);
  color: var(--blue-600);
  display: grid;
  place-items: center;
}

.builder-review-row__icon svg {
  width: 20px;
  height: 20px;
}

.builder-review-row__info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.builder-review-row__k {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-500);
  font-weight: 700;
}

.builder-review-row__v {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.builder-review-row__empty {
  color: var(--ink-500);
  font-weight: 400;
  font-style: italic;
}

.builder-review-row__price {
  font-weight: 700;
  font-size: 0.88rem;
  flex-shrink: 0;
}

.builder-review-row__edit {
  font-size: 0.76rem;
  color: var(--blue-600);
  font-weight: 700;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

/* ---------- Wattage gauge ---------- */
.wattage-gauge {
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin-bottom: 20px;
}

.wattage-gauge__head {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 10px;
}

.wattage-gauge__track {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: var(--silver-200);
  overflow: visible;
}

.wattage-gauge__fill {
  height: 100%;
  border-radius: 999px;
  width: 0;
  transition: width 0.7s var(--ease-out-quart);
}

.wattage-gauge__fill.is-good {
  background: var(--success);
}

.wattage-gauge__fill.is-warn {
  background: var(--accent-deal);
}

.wattage-gauge__marker {
  position: absolute;
  top: -4px;
  width: 2px;
  height: 18px;
  background: var(--navy-900);
  transition: left 0.7s var(--ease-out-quart);
}

.wattage-gauge__labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.76rem;
  color: var(--ink-500);
  margin-top: 8px;
}

.builder-summary {
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-card);
}

.builder-summary__row--total {
  display: flex;
  justify-content: space-between;
  font-size: 1.15rem;
  font-weight: 800;
  font-family: var(--font-display);
  color: var(--navy-900);
}

/* ---------- Success state ---------- */
.builder-success {
  text-align: center;
  padding: 56px 24px;
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.builder-success__badge {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--accent-success-soft);
  color: var(--accent-success);
  display: grid;
  place-items: center;
  animation: builder-success-pop 0.5s var(--ease-out-back);
}

@keyframes builder-success-pop {
  0% { transform: scale(0.4); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.builder-success h2 {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.builder-success p {
  color: var(--ink-500);
  font-size: 0.9rem;
  max-width: 440px;
  margin: 0 auto 24px;
  line-height: 1.6;
}

.builder-success__actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 18px;
}

.builder-success__restart {
  background: none;
  border: none;
  color: var(--blue-600);
  font-weight: 600;
  font-size: 0.86rem;
  cursor: pointer;
}

/* ---------- "Continue anyway" confirmation ----------
   Same overlay + centred-card language as .auth-modal-overlay/.auth-card
   in store.css, for visual consistency — this just isn't a mandatory
   blocking modal (backdrop click and Escape both dismiss it, same as the
   auth modal, unlike the cookie-consent one). Shown only when Add Build to
   Cart would otherwise go through with something missing or flagged as a
   poor fit — see gaming-builder-page.js's showBuildConfirm(). */
.builder-confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(11, 18, 36, 0.55);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-fast) ease;
}

.builder-confirm-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.builder-confirm-card {
  position: relative;
  width: 100%;
  max-width: 440px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  padding: clamp(24px, 4vw, 32px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  background: var(--white);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(8px) scale(0.98);
  transition: transform var(--dur-fast) ease;
}

.builder-confirm-overlay.is-open .builder-confirm-card {
  transform: translateY(0) scale(1);
}

.builder-confirm-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #fff3e0;
  color: #92400e;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.builder-confirm-card h2 {
  font-size: 1.15rem;
  margin: 0 0 8px;
  color: var(--navy-900);
}

.builder-confirm-card__intro {
  font-size: 0.88rem;
  color: var(--ink-500);
  margin: 0 0 12px;
  line-height: 1.5;
}

.builder-confirm-card__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.builder-confirm-card__list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--navy-900);
  background: var(--silver-100);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  line-height: 1.4;
}

.builder-confirm-card__list li::before {
  content: "";
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--accent-deal);
}

.builder-confirm-card__note {
  font-size: 0.78rem;
  color: var(--ink-500);
  line-height: 1.5;
  margin: 0 0 20px;
}

.builder-confirm-card__actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.builder-confirm-card__actions .btn {
  flex: 1 1 160px;
}

@media (max-width: 480px) {
  .builder-confirm-card__actions .btn {
    flex: 1 1 0;
    padding-left: 12px;
    padding-right: 12px;
    font-size: 0.86rem;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .builder-layout {
    flex-direction: column;
  }

  .builder-rail {
    width: 100%;
    position: static;
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .builder-step {
    flex-shrink: 0;
  }

  .builder-step__picked {
    display: none;
  }

  .builder-rail__total {
    display: none;
  }
}

@media (max-width: 520px) {
  .builder-opt-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .builder-opt {
    padding: 12px;
  }

  .builder-preview-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* The rail's horizontal-scroll strip (see the 900px breakpoint below)
     otherwise looks like it randomly stops mid-list on a narrow phone —
     a thin gradient hint on the trailing edge makes "there's more, swipe"
     obvious without adding a whole new UI element. */
  .builder-rail {
    position: relative;
  }

  .builder-rail::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 6px;
    width: 28px;
    background: linear-gradient(to right, transparent, var(--bg-body));
    pointer-events: none;
  }
}