:root {
  --paper: #f4efe6;
  --paper-deep: #e9dfd1;
  --ink: #171512;
  --ink-soft: #3d3832;
  --muted: #776f65;
  --line: rgba(23, 21, 18, 0.14);
  --line-light: rgba(244, 239, 230, 0.22);
  --bronze: #9a6b45;
  --bronze-soft: #c39a76;
  --sand: #d8c6b0;
  --olive: #5d6654;
  --serif: Georgia, "Times New Roman", "Noto Serif", serif;
  --sans: "Segoe UI", "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --max: 1480px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  margin: 0;
  overflow-x: hidden;
  background: radial-gradient(circle at 12% 8%, rgba(255, 255, 255, 0.55), transparent 28rem), var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  z-index: 99;
  background-image: repeating-linear-gradient(0deg, rgba(23, 21, 18, 0.028) 0 1px, transparent 1px 3px);
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
img, svg { display: block; max-width: 100%; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.site-shell { width: min(calc(100% - 64px), var(--max)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: 82px;
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
}
.site-header.is-scrolled { background: rgba(244, 239, 230, 0.82); border-bottom-color: var(--line); backdrop-filter: blur(16px); }
.brand { display: inline-flex; align-items: center; gap: 0.7rem; font-family: var(--serif); font-size: 1.22rem; letter-spacing: -0.035em; }
.brand-mark { width: 30px; height: 30px; color: var(--ink); }
.nav { display: flex; align-items: center; gap: clamp(1.2rem, 2.5vw, 2.8rem); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; }
.nav a, .header-link { position: relative; }
.nav a::after, .header-link::after { content: ""; position: absolute; left: 0; bottom: -0.35rem; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform 0.35s ease; }
.nav a:hover::after, .header-link:hover::after { transform: scaleX(1); transform-origin: left; }
.header-actions { display: flex; align-items: center; gap: 1.3rem; }
.header-link { font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; }
.menu-toggle { display: none; width: 40px; height: 40px; padding: 0; background: transparent; border: 1px solid var(--line); border-radius: 50%; cursor: pointer; align-items: center; justify-content: center; flex-direction: column; gap: 4px; }
.menu-toggle span:not(.sr-only) { display: block; width: 15px; height: 1px; background: var(--ink); transition: transform 0.3s ease; }

.hero { display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr); align-items: center; gap: clamp(2rem, 5vw, 6rem); min-height: calc(100vh - 82px); padding: clamp(2rem, 5vw, 5rem) 0 clamp(4rem, 7vw, 7rem); }
.hero-copy { position: relative; z-index: 2; min-width: 0; }
.eyebrow { display: flex; align-items: center; gap: 0.6rem; margin: 0 0 1.5rem; color: var(--muted); font-size: 0.66rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; }
.eyebrow.light { color: rgba(244, 239, 230, 0.62); }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--bronze); box-shadow: 0 0 0 4px rgba(154, 107, 69, 0.12); }
h1, h2, h3, blockquote { margin: 0; font-weight: 400; }
h1 { max-width: 820px; font-family: var(--serif); font-size: clamp(3.8rem, 7.6vw, 8.5rem); line-height: 0.86; letter-spacing: -0.065em; }
h1 em, h2 em, blockquote em { color: var(--bronze); font-style: italic; }
.hero-lede { max-width: 33rem; margin: 2rem 0 0; color: var(--ink-soft); font-size: clamp(1rem, 1.2vw, 1.17rem); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 2.2rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.8rem; min-height: 52px; padding: 0.9rem 1.4rem; border: 1px solid var(--ink); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--bronze); border-color: var(--bronze); }
.btn-ghost { border-color: var(--line); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); background: rgba(255, 255, 255, 0.3); }
.hero-meta { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.2rem; max-width: 31rem; margin-top: 3.2rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.hero-meta div { display: flex; flex-direction: column; gap: 0.35rem; }
.meta-label { color: var(--muted); font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase; }
.hero-meta strong { font-family: var(--serif); font-size: 1.05rem; font-weight: 400; }
.arabic-line { margin: 2.4rem 0 0; color: var(--bronze); font-family: "Segoe UI", Tahoma, "Noto Sans Arabic", sans-serif; font-size: 0.86rem; letter-spacing: 0.04em; }

.hero-visual { position: relative; min-width: 0; min-height: clamp(480px, 60vw, 690px); overflow: hidden; isolation: isolate; }
.arch { position: absolute; left: 50%; bottom: 0; transform: translateX(-50%); border-radius: 999px 999px 6px 6px; }
.arch-back { width: 86%; height: 94%; background: radial-gradient(circle at 66% 22%, rgba(255, 255, 255, 0.45), transparent 35%), linear-gradient(155deg, #d9c7b0 0%, #b79777 46%, #7c5a42 100%); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15); }
.arch-back::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(115deg, transparent 0 42%, rgba(255, 255, 255, 0.18) 42.2% 42.5%, transparent 42.7%), repeating-linear-gradient(90deg, transparent 0 11%, rgba(23, 21, 18, 0.08) 11.1% 11.4%); mix-blend-mode: soft-light; }
.arch-front { width: 66%; height: 72%; border: 1px solid rgba(244, 239, 230, 0.42); background: linear-gradient(180deg, rgba(244, 239, 230, 0.04), rgba(23, 21, 18, 0.12)); }
.arch-lines { position: absolute; left: 50%; bottom: 0; width: 56%; height: 64%; transform: translateX(-50%); display: flex; align-items: flex-end; justify-content: space-between; gap: 8%; opacity: 0.55; }
.arch-lines span { display: block; width: 1px; height: 100%; background: linear-gradient(to top, rgba(244, 239, 230, 0.05), rgba(244, 239, 230, 0.7)); transform-origin: bottom; }
.arch-lines span:nth-child(1) { height: 58%; }
.arch-lines span:nth-child(2) { height: 74%; }
.arch-lines span:nth-child(3) { height: 84%; }
.arch-lines span:nth-child(4) { height: 74%; }
.arch-lines span:nth-child(5) { height: 58%; }
.visual-label { position: absolute; z-index: 3; color: rgba(244, 239, 230, 0.72); font-size: 0.57rem; letter-spacing: 0.17em; text-transform: uppercase; writing-mode: vertical-rl; }
.visual-label-top { top: 14%; right: 9%; }
.visual-label-bottom { bottom: 8%; left: 9%; writing-mode: horizontal-tb; }
.visual-stamp { position: absolute; top: 9%; left: 7%; z-index: 3; display: grid; place-items: center; width: 62px; height: 62px; border: 1px solid rgba(244, 239, 230, 0.55); border-radius: 50%; color: rgba(244, 239, 230, 0.9); font-family: var(--serif); font-size: 1.1rem; font-style: italic; }
.visual-caption { position: absolute; right: 10%; bottom: 11%; z-index: 3; max-width: 14rem; color: rgba(244, 239, 230, 0.92); font-family: var(--serif); font-size: clamp(0.95rem, 1.3vw, 1.25rem); font-style: italic; line-height: 1.35; text-align: right; }

.marquee { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.marquee-track { display: flex; width: max-content; gap: 3.5rem; padding: 1.1rem 0; animation: marquee 32s linear infinite; }
.marquee-track span { display: inline-flex; align-items: center; gap: 3.5rem; color: var(--muted); font-size: 0.65rem; letter-spacing: 0.16em; text-transform: uppercase; white-space: nowrap; }
.marquee-track span::after { content: "✦"; color: var(--bronze); font-size: 0.6rem; }
@keyframes marquee { to { transform: translateX(-50%); } }

.section { padding: clamp(4.5rem, 9vw, 8.5rem) 0; border-top: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(18rem, 0.55fr); align-items: end; gap: 3rem; margin-bottom: clamp(2.5rem, 5vw, 5rem); }
.section-head h2, .quality-copy h2, .contact-copy h2 { font-family: var(--serif); font-size: clamp(3rem, 5.2vw, 5.8rem); line-height: 0.92; letter-spacing: -0.055em; }
.section-lede { max-width: 33rem; margin: 0 0 0.4rem; color: var(--muted); font-size: 0.98rem; line-height: 1.7; }

.category-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1rem, 2.2vw, 2rem); }
.category-card { border-top: 1px solid var(--ink); padding-top: 0.7rem; transition: transform 0.4s ease; }
.category-card:hover { transform: translateY(-6px); }
.category-media { position: relative; min-height: clamp(260px, 30vw, 390px); overflow: hidden; margin-bottom: 1.2rem; }
.category-media::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, transparent 0 46%, rgba(255, 255, 255, 0.18) 46.2% 46.5%, transparent 46.7%), repeating-linear-gradient(90deg, transparent 0 13%, rgba(23, 21, 18, 0.08) 13.1% 13.4%); mix-blend-mode: soft-light; transition: transform 0.7s ease; }
.category-card:hover .category-media::before { transform: scale(1.04); }
.media-women { background: linear-gradient(145deg, #d7b7a7, #a86f62 52%, #513d39); }
.media-men { background: linear-gradient(145deg, #9da395, #5d6654 48%, #222a24); }
.media-kids { background: linear-gradient(145deg, #d8d3c4, #b6c1c0 50%, #687b7d); }
.media-lounge { background: linear-gradient(145deg, #e5d8c7, #c39a76 50%, #6e4e37); }
.category-media::after { content: ""; position: absolute; left: 50%; bottom: -18%; width: 64%; height: 82%; transform: translateX(-50%); border-radius: 999px 999px 0 0; border: 1px solid rgba(244, 239, 230, 0.38); background: linear-gradient(180deg, rgba(244, 239, 230, 0.04), rgba(23, 21, 18, 0.18)); }
.card-index, .media-note { position: absolute; z-index: 2; color: rgba(244, 239, 230, 0.82); font-size: 0.58rem; letter-spacing: 0.16em; text-transform: uppercase; }
.card-index { top: 1rem; left: 1rem; }
.media-note { right: 1rem; bottom: 1rem; }
.category-copy h3 { font-family: var(--serif); font-size: 1.9rem; letter-spacing: -0.04em; }
.category-copy p { max-width: 36rem; margin: 0.5rem 0 0; color: var(--muted); font-size: 0.92rem; }

.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.step { min-height: 220px; padding: 1.2rem 1.2rem 1rem 0; border-right: 1px solid var(--line); }
.step:last-child { border-right: 0; }
.step + .step { padding-left: 1.2rem; }
.step-no { color: var(--bronze); font-size: 0.62rem; letter-spacing: 0.16em; }
.step h3 { margin-top: 4rem; font-family: var(--serif); font-size: 1.42rem; letter-spacing: -0.035em; }
.step p { max-width: 17rem; margin: 0.65rem 0 0; color: var(--muted); font-size: 0.9rem; }

.quality-panel { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(18rem, 0.75fr); gap: 4rem; padding: clamp(2.2rem, 5vw, 5.5rem); background: var(--ink); color: var(--paper); }
.quality-copy h2 { margin-top: 0.4rem; font-size: clamp(2.8rem, 4.8vw, 5.2rem); }
.quality-copy h2 em { color: var(--bronze-soft); }
.quality-copy > p:not(.eyebrow) { max-width: 36rem; margin: 1.4rem 0 0; color: rgba(244, 239, 230, 0.66); font-size: 0.98rem; line-height: 1.7; }
.check-list { display: grid; gap: 0.8rem; margin: 2.4rem 0 0; padding: 0; list-style: none; }
.check-list li { display: flex; align-items: center; gap: 0.8rem; color: rgba(244, 239, 230, 0.82); font-size: 0.86rem; }
.check-list span { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid var(--line-light); border-radius: 50%; color: var(--bronze-soft); font-family: var(--serif); font-size: 0.9rem; }
.grade-visual { min-height: 360px; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 1rem; }
.grade-ring { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; flex: 0 0 auto; border: 1px solid var(--line-light); border-radius: 50%; color: var(--paper); }
.grade-ring strong { font-family: var(--serif); font-weight: 400; line-height: 1; }
.grade-ring small { margin-top: 0.35rem; color: rgba(244, 239, 230, 0.48); font-size: 0.53rem; letter-spacing: 0.12em; text-transform: uppercase; }
.grade-a { width: 170px; height: 170px; background: rgba(195, 154, 118, 0.12); border-color: rgba(195, 154, 118, 0.55); }
.grade-a strong { font-size: 4rem; color: var(--bronze-soft); }
.grade-b { width: 145px; height: 145px; }
.grade-b strong { font-size: 3rem; color: rgba(244, 239, 230, 0.62); }
.grade-c { width: 120px; height: 120px; border-color: rgba(244, 239, 230, 0.12); }
.grade-c strong { font-size: 2.2rem; color: rgba(244, 239, 230, 0.32); }

.gulf { border-top-color: var(--line); }
.gulf-quote { max-width: 1120px; }
.gulf-quote blockquote { margin: 0; font-family: var(--serif); font-size: clamp(2.3rem, 5vw, 5.2rem); line-height: 1.06; letter-spacing: -0.055em; }
.gulf-quote blockquote em { color: var(--bronze); }
.quote-note { max-width: 38rem; margin: 2rem 0 0 auto; color: var(--muted); font-size: 0.92rem; line-height: 1.7; }

.lot-card { border: 1px solid var(--line); padding: clamp(1.3rem, 3vw, 2.5rem); }
.lot-top, .lot-footer { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.lot-top { padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.lot-tag { color: var(--bronze); font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase; }
.lot-body { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 3rem; align-items: end; padding: clamp(2rem, 4vw, 4rem) 0; }
.lot-title h2 { font-family: var(--serif); font-size: clamp(2.4rem, 4vw, 4.6rem); line-height: 0.94; letter-spacing: -0.055em; }
.lot-title p { margin: 1rem 0 0; color: var(--muted); font-size: 0.86rem; }
.lot-specs { display: grid; grid-template-columns: repeat(2, minmax(7rem, 1fr)); gap: 1.2rem 2rem; }
.lot-specs div { display: flex; flex-direction: column; gap: 0.35rem; padding-top: 0.7rem; border-top: 1px solid var(--line); }
.lot-specs span { color: var(--muted); font-size: 0.57rem; letter-spacing: 0.14em; text-transform: uppercase; }
.lot-specs strong { font-family: var(--serif); font-size: 1.15rem; font-weight: 400; }
.lot-footer { padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.78rem; }
.lot-footer a { color: var(--ink); border-bottom: 1px solid var(--ink); padding-bottom: 0.15rem; white-space: nowrap; }

.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 1.35rem 2.5rem 1.35rem 0; cursor: pointer; list-style: none; font-family: var(--serif); font-size: clamp(1.15rem, 1.6vw, 1.5rem); letter-spacing: -0.025em; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); color: var(--bronze); font-family: var(--sans); font-size: 1.2rem; font-weight: 300; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 52rem; margin: 0; padding: 0 2rem 1.6rem 0; color: var(--muted); font-size: 0.93rem; line-height: 1.7; }

.contact { display: grid; grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.72fr); gap: clamp(2rem, 6vw, 7rem); margin-top: 0; padding: clamp(4rem, 8vw, 7.5rem) clamp(1.5rem, 5vw, 5rem); background: var(--ink); color: var(--paper); }
.contact-copy h2 { margin-top: 0.4rem; font-size: clamp(2.8rem, 5vw, 5.4rem); }
.contact-copy > p:not(.eyebrow) { max-width: 34rem; margin: 1.4rem 0 0; color: rgba(244, 239, 230, 0.64); font-size: 0.98rem; line-height: 1.7; }
.contact-direct { display: flex; flex-wrap: wrap; gap: 1.8rem; margin-top: 2.5rem; color: var(--bronze-soft); font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase; }
.contact-direct a { border-bottom: 1px solid rgba(195, 154, 118, 0.4); padding-bottom: 0.2rem; }
.inquiry-form { display: grid; align-content: start; gap: 1.2rem; }
.inquiry-form label { display: grid; gap: 0.45rem; color: rgba(244, 239, 230, 0.5); font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase; }
.inquiry-form input, .inquiry-form select { width: 100%; min-height: 44px; padding: 0.55rem 0; border: 0; border-bottom: 1px solid rgba(244, 239, 230, 0.28); border-radius: 0; outline: none; background: transparent; color: var(--paper); font-size: 0.96rem; }
.inquiry-form select option { color: var(--ink); }
.inquiry-form input::placeholder { color: rgba(244, 239, 230, 0.3); }
.inquiry-form input:focus, .inquiry-form select:focus { border-bottom-color: var(--bronze-soft); }
.btn-light { margin-top: 0.7rem; border-color: var(--paper); background: var(--paper); color: var(--ink); }
.btn-light:hover { border-color: var(--bronze-soft); background: var(--bronze-soft); }
.form-note { margin: 0; color: rgba(244, 239, 230, 0.36); font-size: 0.68rem; }

.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 2rem 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.68rem; letter-spacing: 0.04em; }
.footer-brand { display: flex; align-items: center; gap: 0.65rem; color: var(--ink); font-family: var(--serif); font-size: 1rem; }
.footer-brand .brand-mark { width: 24px; height: 24px; }
.footer-meta { text-align: right; }

.wa-float { position: fixed; right: 24px; bottom: 24px; z-index: 60; display: flex; align-items: center; gap: 0.6rem; min-height: 50px; padding: 0.7rem 1rem; border: 1px solid rgba(244, 239, 230, 0.24); border-radius: 999px; background: var(--ink); color: var(--paper); box-shadow: 0 12px 40px rgba(23, 21, 18, 0.2); transition: background 0.3s ease, transform 0.3s ease; }
.wa-float:hover { background: var(--bronze); transform: translateY(-2px); }
.wa-float svg { width: 19px; height: 19px; fill: currentColor; }
.wa-float span { font-size: 0.65rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; }
.reveal { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 3rem; }
  .hero-copy { max-width: 760px; }
  .hero-visual { min-height: 560px; max-width: 620px; width: 100%; margin: 0 auto; }
  .section-head { grid-template-columns: 1fr; gap: 1.5rem; }
  .section-lede { max-width: 40rem; }
  .quality-panel { grid-template-columns: 1fr; gap: 2rem; }
  .grade-visual { min-height: 300px; }
  .contact { grid-template-columns: 1fr; }
  .contact-copy, .inquiry-form { max-width: 42rem; }
}

@media (max-width: 760px) {
  .site-shell { width: min(calc(100% - 36px), var(--max)); }
  .site-header { height: 68px; }
  .nav { position: absolute; top: 68px; left: 0; right: 0; display: none; flex-direction: column; align-items: flex-start; gap: 1.3rem; padding: 1.5rem 18px 2rem; border-bottom: 1px solid var(--line); background: rgba(244, 239, 230, 0.97); backdrop-filter: blur(16px); }
  .nav.is-open { display: flex; }
  .nav a { font-size: 0.78rem; }
  .menu-toggle { display: flex; }
  .header-link { display: none; }
  h1 { font-size: clamp(2.7rem, 11.5vw, 4.8rem); }
  .hero { padding-top: 2rem; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-meta { grid-template-columns: 1fr 1fr; gap: 0.7rem; }
  .hero-meta div:last-child { grid-column: span 2; }
  .hero-visual { min-height: 440px; }
  .visual-caption { right: 6%; bottom: 12%; font-size: 1rem; }
  .visual-stamp { width: 50px; height: 50px; font-size: 0.95rem; }
  .category-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .step:nth-child(2) { border-right: 0; }
  .step:nth-child(n+3) { border-top: 1px solid var(--line); }
  .step { min-height: 190px; }
  .step h3 { margin-top: 2.6rem; }
  .grade-c { width: 100px; height: 100px; }
  .grade-b { width: 120px; height: 120px; }
  .grade-a { width: 140px; height: 140px; }
  .lot-body { grid-template-columns: 1fr; gap: 2rem; }
  .lot-footer { align-items: flex-start; flex-direction: column; }
  .site-footer { align-items: flex-start; flex-direction: column; gap: 0.72rem; }
  .footer-meta { text-align: left; }
  .wa-float { right: 16px; bottom: 16px; width: 50px; justify-content: center; padding: 0; }
  .wa-float span { display: none; }
}

@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  .step, .step + .step { padding: 1.2rem 0; border-right: 0; border-top: 1px solid var(--line); }
  .step:first-child { border-top: 0; }
  .step h3 { margin-top: 1.4rem; }
  .quality-panel { padding: 1.4rem; }
  .grade-visual { min-height: 260px; }
  .grade-c { width: 100px; height: 100px; }
  .grade-b { width: 120px; height: 120px; }
  .grade-a { width: 140px; height: 140px; }
  .grade-a strong { font-size: 3.3rem; }
  .lot-specs { gap: 0.8rem 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}