.breadcrumb { padding: 18px 0 0; font-size: 13px; color: var(--gray); }
.breadcrumb a { color: var(--gray); }
.breadcrumb a:hover { color: var(--teal-dark); }
.breadcrumb span { margin: 0 4px; }

.product-hero {
  display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px;
  padding: 32px 32px 64px;
}

/* MEDIA COLUMN */
.product-media { display: flex; flex-direction: column; gap: 20px; }
.cover-badge {
  align-self: flex-start; background: var(--teal-light); color: var(--teal-dark);
  font-size: 11px; font-weight: 800; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 6px 12px; border-radius: 999px;
}
.product-cover {
  width: 100%; aspect-ratio: 3 / 4.4; border-radius: 18px; background: var(--card);
  background-size: cover; background-position: center;
  box-shadow: 0 20px 40px rgba(0,0,0,0.14); border: 1px solid var(--border);
  display: flex; align-items: flex-end; justify-content: center; padding: 24px; position: relative;
}
.cover-placeholder-title {
  color: #fff; font-weight: 800; font-size: 17px; line-height: 1.35; text-align: center;
  text-shadow: 0 1px 3px rgba(0,0,0,0.25);
}
.media-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.mstat {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 14px; text-align: center;
}
.mstat .v { font-size: 17px; font-weight: 800; }
.mstat .l { font-size: 11px; color: var(--gray); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 2px; }
.why-box { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 22px; }
.why-title { font-weight: 700; font-size: 14px; margin-bottom: 16px; }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.why-item { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; }
.why-item b { font-size: 13px; }
.why-item span.check {
  width: 18px; height: 18px; border-radius: 50%; background: var(--teal-light); color: var(--teal-dark);
  display: flex; align-items: center; justify-content: center; font-size: 10px; font-weight: 800; flex-shrink: 0; margin-top: 1px;
}
.why-item span:last-child { color: var(--gray); }

/* INFO COLUMN */
.product-info { display: flex; flex-direction: column; gap: 18px; }
.cat-tag { color: var(--teal); font-weight: 800; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }
.p-title { font-size: clamp(28px, 3vw, 38px); font-weight: 700; line-height: 1.2; margin: 0; }
.p-sub { color: var(--gray); font-size: 14px; margin-top: -10px; }
.badge-pills { display: flex; gap: 10px; }
.pbadge {
  background: var(--cream); border: 1px solid var(--border); border-radius: 999px;
  padding: 6px 14px; font-size: 12px; font-weight: 700; color: var(--gray);
}
.pbadge.good { background: var(--teal-light); color: var(--teal-dark); border-color: transparent; }

.price-panel {
  background: var(--card); border: 1px solid var(--border); border-radius: 20px; padding: 26px;
}
.price-row { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.price-big { font-size: 34px; font-weight: 800; }
.per-copy { color: var(--gray); font-size: 13px; }
.save-chip { margin-left: auto; background: #e6f4ee; color: #1f7a52; font-weight: 700; font-size: 12px; padding: 6px 12px; border-radius: 999px; }
.price-note { color: var(--gray); font-size: 13px; margin-top: 8px; }
.cta-row { display: flex; gap: 14px; margin-top: 18px; }
.cta-row .btn { flex: 1; text-align: center; }
.feature-list {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; margin-top: 20px;
  padding-top: 18px; border-top: 1px solid var(--border); font-size: 13px; color: var(--gray);
}

.resale-box {
  background: var(--teal-dark); color: #fff; border-radius: 20px; padding: 24px 26px;
}
.resale-title { font-weight: 700; font-size: 14px; margin-bottom: 14px; }
.resale-row { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; font-size: 14px; color: rgba(255,255,255,0.75); }
.resale-row b { color: #fff; font-size: 16px; }
.resale-row.highlight { border-top: 1px solid rgba(255,255,255,0.15); margin-top: 4px; padding-top: 14px; }
.resale-row.highlight b { color: #6fd6a8; font-size: 20px; }
.resale-fine { font-size: 12px; color: rgba(255,255,255,0.5); margin-top: 12px; line-height: 1.5; }

.calc-box { background: var(--cream); border: 1px solid var(--border); border-radius: 20px; padding: 24px 26px; }
.calc-title { font-weight: 700; font-size: 14px; margin-bottom: 16px; }
.tier-boxes { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; margin-bottom: 18px; }
.tier-box {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 12px 8px;
  text-align: center; cursor: pointer;
  transition: transform var(--dur-2) var(--ease-out-cubic), border-color var(--dur-2) ease, box-shadow var(--dur-2) ease;
}
.tier-box:hover { transform: translateY(-2px); }
.tier-box.active { border-color: var(--teal-dark); box-shadow: 0 0 0 2px rgba(31,74,65,0.12); background: var(--teal-light); }
.tier-box .t-label { font-size: 11px; color: var(--gray); font-weight: 700; text-transform: uppercase; }
.tier-box .t-price { font-size: 16px; font-weight: 800; margin: 2px 0; }
.tier-box .t-off { font-size: 11px; color: var(--teal); font-weight: 700; }
.calc-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 15px; font-weight: 600;
  background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 12px 16px;
}
.calc-row input[type=number] {
  width: 70px; padding: 8px; border-radius: 8px; border: 1px solid var(--border); font-size: 15px;
  font-weight: 700; text-align: center; outline: none;
}
.calc-row input[type=number]:focus { border-color: var(--teal); }
.calc-unit { color: var(--gray); }
.calc-total { color: var(--teal-dark); font-weight: 800; margin-left: auto; }
.calc-save { color: #1f7a52; font-size: 13px; font-weight: 700; }

.spec-table { background: var(--card); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.spec-row { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--border); }
.spec-row:last-child { border-bottom: none; }
.spec-row > div { padding: 14px 18px; display: flex; flex-direction: column; gap: 2px; }
.spec-row > div:first-child { border-right: 1px solid var(--border); }
.s-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--gray); font-weight: 700; }
.s-val { font-size: 14px; font-weight: 600; }

/* DESCRIPTION */
.description-section { padding: 20px 32px 8px; }
.description-body {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 32px 36px;
  color: var(--ink); font-size: 15px; line-height: 1.75; max-width: 900px;
}
.description-body > p:first-child { margin-top: 0; font-size: 16px; }
.description-body h3 {
  font-size: 17px; font-weight: 700; color: var(--teal-dark); margin: 28px 0 12px;
}
.description-body h3:first-child { margin-top: 0; }
.description-body ul { margin: 0 0 20px; padding-left: 22px; }
.description-body li { margin-bottom: 8px; }
.description-body p { margin: 0 0 16px; }

/* ABOUT / TOC / FAQ — same card treatment as description */
.about-section, .toc-section, .faq-section { padding: 20px 32px 8px; }
.about-body, .toc-body, .faq-body {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 32px 36px;
  color: var(--ink); font-size: 15px; line-height: 1.75; max-width: 900px;
}
.about-body p, .toc-body p, .faq-body p { margin: 0 0 16px; }
.toc-body ul { margin: 0; padding-left: 22px; }
.toc-body li { margin-bottom: 8px; }
.faq-body p:last-child { margin-bottom: 0; }
.faq-body strong { color: var(--teal-dark); }

/* RELATED */
.related-section { padding: 20px 32px 72px; }
.related-title { font-size: 22px; font-weight: 700; margin-bottom: 20px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.related-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px;
  display: block; transition: transform var(--dur-2) var(--ease-out-cubic), box-shadow var(--dur-2) ease;
}
.related-card:hover { transform: translateY(-4px); box-shadow: 0 14px 28px rgba(0,0,0,0.1); }
.rc-title { font-weight: 700; font-size: 14px; margin-bottom: 8px; line-height: 1.35; }
.rc-price { color: var(--teal-dark); font-weight: 800; }
.rc-new { color: var(--gray); font-weight: 500; font-size: 12px; }

@media (max-width: 900px) {
  .product-hero { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .tier-boxes { grid-template-columns: repeat(3, 1fr); }
}