/* Model page: buy box beside the photo, sticky section tabs, mobile buy dock. */

.model-page {
  background: var(--surface-alt);
}

.pdp-wrap {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 20px;
}

.pdp .breadcrumbs {
  padding: 18px 0 14px;
}

/* ---------------------------------------------------------------- hero */

.pdp-hero {
  display: grid;
  gap: 20px;
  padding-bottom: 32px;
}

.pdp-photo {
  position: relative;
  margin: 0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
}

.pdp-photo img,
.pdp-photo__empty {
  position: absolute;
  inset: 28px;
  width: calc(100% - 56px);
  height: calc(100% - 56px);
  object-fit: contain;
}

.pdp-photo__empty {
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  color: var(--muted);
}

.pdp-photo__brand {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 1;
}

.pdp-buy {
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}

.pdp-buy h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.04;
  color: var(--ink);
  text-wrap: balance;
}

.pdp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.pdp-chips div {
  display: grid;
  padding: 6px 12px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.pdp-chips dt {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.pdp-chips dd {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.pdp-chips b {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--ink);
}

.pdp-lede {
  margin: 0;
  color: var(--muted-strong);
  max-width: 60ch;
}

.pdp-buybox {
  display: grid;
  gap: 12px;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 14px 34px rgba(6, 26, 43, 0.08);
}

.pdp-buybox p {
  margin: 0;
}

.pdp-buybox__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.15;
  color: var(--ink);
}

.pdp-disclosure {
  font-size: 0.8rem;
  color: var(--muted);
}

.pdp-variant {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--blue-100);
  color: var(--muted-strong);
  font-size: 0.88rem;
}

.pdp-variant svg {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  fill: none;
  stroke: var(--blue-700);
  stroke-width: 2;
}

.pdp-variant strong {
  color: var(--ink);
}

/* ------------------------------------------------------------- buttons */

.pdp .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border: 1.5px solid transparent;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.pdp .btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.pdp .btn:focus-visible {
  outline: 3px solid var(--blue-500);
  outline-offset: 2px;
}

.pdp .btn-amazon {
  background: var(--amazon);
  border-color: var(--amazon);
  color: #1a1206;
}

.pdp .btn-amazon:hover {
  background: var(--amazon-hover);
  border-color: var(--amazon-hover);
}

.pdp .btn-amazon--lg {
  min-height: 52px;
  font-size: 1rem;
}

.pdp .btn-amazon--sm {
  min-height: 38px;
  padding: 0 16px;
  font-size: 0.85rem;
}

.pdp .btn-ghost {
  background: #fff;
  border-color: var(--border);
  color: var(--blue-700);
}

.pdp .btn-ghost:hover {
  border-color: var(--blue-400);
}

.pdp .btn-blue {
  background: var(--blue-700);
  border-color: var(--blue-700);
  color: #fff;
}

.pdp .btn-blue:hover {
  background: var(--navy-950);
  border-color: var(--navy-950);
}

/* ---------------------------------------------------------------- tabs */

.pdp-tabs {
  position: sticky;
  top: var(--header-h);
  z-index: 50;
  background: rgba(245, 248, 252, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-block: 1px solid var(--border);
}

.pdp-tabs .pdp-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 52px;
}

.pdp-tabs__links {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  scrollbar-width: none;
  font-size: 0.92rem;
  font-weight: 600;
  white-space: nowrap;
}

.pdp-tabs__links a {
  padding-block: 14px;
  color: var(--muted-strong);
  text-decoration: none;
}

.pdp-tabs__links a:hover {
  color: var(--blue-700);
}

.pdp-tabs__buy {
  display: none;
  margin-left: auto;
  align-items: center;
  gap: 12px;
}

.pdp-tabs__buy strong {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ink);
}

/* ------------------------------------------------------------ sections */

.pdp-sec {
  display: grid;
  gap: 16px;
  align-content: start;
  padding-top: 40px;
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 64px);
}

.pdp-sec h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.8rem;
  line-height: 1.1;
  color: var(--ink);
}

.pdp-sec__lede {
  margin: -8px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.pdp-columns {
  display: grid;
  gap: 0 32px;
}

.pdp-features {
  display: grid;
  gap: 12px;
}

.pdp-feature,
.pdp-included {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
}

.pdp-feature h3,
.pdp-included h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.15;
  color: var(--ink);
}

.pdp-feature p,
.pdp-included p,
.pdp-feature ul,
.pdp-included ul {
  margin: 0;
  color: var(--muted-strong);
  font-size: 0.95rem;
}

.pdp-feature ul,
.pdp-included ul {
  padding-left: 20px;
}

.pdp-included__note {
  padding-top: 8px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem !important;
  color: var(--muted) !important;
}

.pdp-faq details {
  padding: 14px 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
}

.pdp-faq summary {
  font-weight: 700;
  cursor: pointer;
}

.pdp-faq p {
  margin: 10px 0 0;
  color: var(--muted-strong);
}

/* ---------------------------------------------------------- spec sheet */

.pdp-sheet {
  display: grid;
  gap: 16px;
  align-items: start;
}

.pdp .spec-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  font-size: 0.93rem;
}

.pdp .spec-table thead th {
  padding: 12px 16px;
  background: var(--surface-alt);
  border-bottom: 1px solid var(--border);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-align: left;
  color: var(--muted);
}

.pdp .spec-table tbody th,
.pdp .spec-table td {
  padding: 10px 16px;
  background: transparent;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.pdp .spec-table tbody tr:last-child th,
.pdp .spec-table tbody tr:last-child td {
  border-bottom: 0;
}

.pdp .spec-table tbody th {
  font-weight: 400;
  text-align: left;
  color: var(--muted-strong);
}

.pdp .spec-table td {
  font-weight: 700;
  text-align: right;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.pdp-strip {
  display: grid;
  gap: 14px;
  align-items: center;
  padding: 20px;
  border-radius: 18px;
  background: var(--navy-900);
  color: #c4d0e1;
}

.pdp-strip p {
  display: grid;
  gap: 2px;
  margin: 0;
  font-size: 0.92rem;
}

.pdp-strip strong {
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1.15;
  color: #fff;
}

/* ------------------------------------------------------ similar models */

.pdp-cards {
  display: grid;
  gap: 14px;
}

.pdp-card {
  display: grid;
  grid-template-rows: auto auto auto auto 1fr auto;
  gap: 10px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
}

.pdp-card__photo {
  position: relative;
  display: block;
  height: 160px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.pdp-card__photo img {
  position: absolute;
  inset: 10px;
  width: calc(100% - 20px);
  height: calc(100% - 20px);
  object-fit: contain;
}

.pdp-card__brand {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.pdp-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.15;
}

.pdp-card h3 a {
  color: var(--ink);
  text-decoration: none;
}

.pdp-card h3 a:hover {
  color: var(--blue-700);
}

.pdp-card .model-spec-line {
  margin: 0;
}

.pdp-card__diff {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-700);
  font-variant-numeric: tabular-nums;
}

.pdp-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-self: end;
}

.pdp-card__actions .btn {
  flex: 1 1 auto;
  min-height: 40px;
  padding: 0 12px;
  font-size: 0.85rem;
}

/* --------------------------------------------------- guides and sources */

.pdp-guides {
  display: grid;
  gap: 10px;
}

.pdp-guide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

.pdp-guide:hover {
  border-color: var(--blue-400);
  color: var(--blue-700);
}

.pdp-guide svg {
  flex: none;
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--blue-700);
  stroke-width: 1.8;
}

.pdp-sources {
  margin: 40px 0 0;
  padding: 16px 0 40px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.pdp-sources a {
  color: var(--blue-700);
}

/* --------------------------------------------------------- mobile dock */

.pdp-dock {
  position: sticky;
  bottom: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  box-shadow: 0 -8px 24px rgba(6, 26, 43, 0.08);
}

.pdp-dock .btn {
  flex: 1;
  min-height: 46px;
}

/* ---------------------------------------------------------- breakpoints */

@media (min-width: 640px) {
  .pdp-features,
  .pdp-guides {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pdp-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pdp-strip {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 22px 26px;
  }
}

@media (min-width: 960px) {
  .pdp-wrap {
    padding-inline: 32px;
  }

  .pdp-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
    padding-bottom: 44px;
  }

  .pdp-photo {
    position: sticky;
    top: calc(var(--header-h) + 16px);
    aspect-ratio: 5 / 4.6;
  }

  .pdp-tabs__buy {
    display: flex;
  }

  .pdp-columns {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

  .pdp-columns--single {
    grid-template-columns: minmax(0, 1fr);
  }

  .pdp-columns--single .pdp-features {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pdp-sheet {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }

  .pdp-dock {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pdp .btn {
    transition: none;
  }
}