/*
 * VITO TEXTILE 全站视觉样式。
 * 当前文件只包含浏览器可直接解析的标准 CSS，不再依赖 Tailwind CSS 或构建工具。
 * 根目录 styles.css 会引入本文件，原项目目录继续保留它以方便对照迁移结果。
 */

:root {
  --ink: #15211c;
  --ink-soft: #304039;
  --muted: #68756f;
  --line: #d8ded9;
  --paper: #f2f3ee;
  --paper-deep: #e6e9e3;
  --white: #ffffff;
  --acid: #d8f23a;
  --green: #275b4c;
  --green-light: #6f9488;
  --radius: 1.5rem;
  --shadow: 0 28px 80px rgba(17, 30, 24, 0.14);
}

/* 统一盒模型并保留键盘、触屏和无障碍浏览所需的基础行为。 */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 7rem; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
a, summary { touch-action: manipulation; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
address { font-style: normal; }
.shell { width: min(1240px, calc(100% - 64px)); margin-inline: auto; }
.skip-link {
  position: fixed;
  z-index: 200;
  top: 0.75rem;
  left: 0.75rem;
  transform: translateY(-160%);
  padding: 0.7rem 1rem;
  border-radius: 0.5rem;
  color: #fff;
  background: var(--ink);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--acid); outline-offset: 3px; }

.topline {
  padding: 0.65rem 0;
  color: #e8f0ec;
  background: var(--ink);
  font-size: 0.69rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.topline-inner { display: flex; justify-content: space-between; gap: 1rem; }
.topline a { color: var(--acid); }

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid rgba(216, 222, 217, 0.9);
  background: rgba(242, 243, 238, 0.92);
  backdrop-filter: blur(18px);
}
.nav-wrap {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.6rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.75rem; flex: none; }
.brand-mark {
  width: 2.6rem;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 0.72rem;
  color: var(--ink);
  background: var(--acid);
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: -0.09em;
}
.brand-name { font-size: 0.96rem; font-weight: 900; letter-spacing: 0.12em; }
.brand-name b { font-weight: 500; }
.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 1.6vw, 1.7rem);
  margin-left: auto;
  color: var(--ink-soft);
  font-size: 0.76rem;
  font-weight: 750;
}
.desktop-nav a, .footer a { transition: color 160ms ease; }
.desktop-nav a:hover, .footer a:hover { color: var(--green); }

.button {
  min-height: 3.05rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.82rem 1.3rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(21, 33, 28, 0.15); }
.button-dark { color: #fff; background: var(--ink); }
.button-light { border-color: #cad3cd; background: rgba(255, 255, 255, 0.76); }
.button-outline { color: #fff; border-color: rgba(255, 255, 255, 0.32); }
.button-white { color: var(--ink); background: #fff; }
.button-ghost { color: #fff; border-color: rgba(255, 255, 255, 0.32); }

.mobile-menu { display: none; position: relative; }
.mobile-menu summary {
  cursor: pointer;
  list-style: none;
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu nav {
  width: 240px;
  display: grid;
  gap: 0.85rem;
  position: absolute;
  right: 0;
  top: 2.5rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: #fff;
  box-shadow: var(--shadow);
}
.mobile-menu nav a:last-child { padding-top: 0.8rem; border-top: 1px solid var(--line); font-weight: 800; }

.eyebrow {
  margin: 0 0 1rem;
  color: var(--green);
  font-size: 0.69rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.hero {
  min-height: 735px;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  align-items: center;
  gap: 4.5rem;
  padding-top: 4.6rem;
  padding-bottom: 4.8rem;
}
.hero-copy { position: relative; z-index: 2; }
.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(3.7rem, 6.4vw, 6.35rem);
  font-weight: 710;
  line-height: 0.9;
  letter-spacing: -0.073em;
}
.hero h1 em {
  display: block;
  margin-top: 0.12em;
  color: var(--green);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}
.hero-lead {
  max-width: 650px;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: 1.04rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 2.2rem; }
.hero-meta span {
  padding: 0.48rem 0.68rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.58);
  font-size: 0.68rem;
  font-weight: 700;
}

.hero-media {
  min-height: 610px;
  position: relative;
  overflow: hidden;
  border-radius: 2rem;
  background: var(--ink);
  box-shadow: var(--shadow);
}
.hero-overview { width: 100%; height: 100%; position: absolute; inset: 0; object-fit: cover; object-position: center; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(115deg, rgba(11, 24, 18, 0.8), rgba(11, 24, 18, 0.17) 58%, rgba(11, 24, 18, 0.4)); }
.hero-thesis {
  max-width: 340px;
  position: absolute;
  z-index: 2;
  top: 2rem;
  left: 2rem;
  color: #fff;
}
.hero-thesis span { color: var(--acid); font-size: 0.63rem; font-weight: 900; letter-spacing: 0.16em; }
.hero-thesis strong { display: block; margin-top: 0.55rem; font-family: Georgia, serif; font-size: clamp(2rem, 3vw, 3rem); font-weight: 400; line-height: 1.02; }
.hero-thesis p { margin: 0.8rem 0 0; color: #c2d0ca; font-size: 0.72rem; }
.hero-detail {
  width: 38%;
  height: 49%;
  position: absolute;
  z-index: 3;
  right: 1.5rem;
  bottom: 1.5rem;
  margin: 0;
  padding: 0.6rem;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 1.2rem;
  background: rgba(246, 248, 244, 0.9);
  box-shadow: 0 20px 55px rgba(0, 0, 0, 0.25);
}
.hero-detail img { width: 100%; height: calc(100% - 42px); border-radius: 0.8rem; object-fit: cover; }
.hero-detail figcaption { padding: 0.55rem 0.25rem 0; color: var(--ink-soft); font-size: 0.64rem; font-weight: 700; }

.proof-strip { color: #fff; background: var(--ink); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.proof-grid > div {
  min-height: 136px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.6rem 2rem;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}
.proof-grid > div:last-child { border-right: 1px solid rgba(255, 255, 255, 0.12); }
.proof-grid strong { color: var(--acid); font-family: Georgia, serif; font-size: 2.05rem; font-weight: 400; }
.proof-grid span { margin-top: 0.2rem; color: #aebbb5; font-size: 0.74rem; }

.section { padding-top: 7rem; padding-bottom: 7rem; }
.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.58fr);
  align-items: end;
  gap: 4rem;
  margin-bottom: 3rem;
}
.section-heading h2, .manufacturing-intro h2, .validation-intro h2, .about-statement h2, .contact-section h2 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(2.6rem, 5vw, 5rem);
  font-weight: 660;
  line-height: 0.98;
  letter-spacing: -0.057em;
}
.section-heading > p, .manufacturing-intro > div:last-child > p, .validation-intro > p, .contact-section p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.wearer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.wearer-grid article {
  min-height: 280px;
  display: flex;
  flex-direction: column;
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.68);
}
.wearer-card-top { display: flex; justify-content: space-between; align-items: center; }
.wearer-card-top span { color: #a7b1ac; font-family: Georgia, serif; font-size: 1.65rem; }
.wearer-card-top p { margin: 0; color: var(--green); font-size: 0.66rem; font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase; }
.wearer-grid h3 { max-width: 280px; margin: auto 0 0.65rem; font-family: Georgia, serif; font-size: 1.65rem; font-weight: 400; line-height: 1.1; }
.wearer-grid article > p { margin: 0; color: var(--muted); font-size: 0.8rem; }

.systems-section { border-top: 1px solid var(--line); background: var(--paper-deep); }
.system-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.system-card { overflow: hidden; border: 1px solid rgba(21, 33, 28, 0.08); border-radius: var(--radius); background: #fff; }
.system-art { height: 225px; position: relative; overflow: hidden; }
.system-art::before, .system-art::after, .system-art i { content: ""; position: absolute; display: block; }
.system-art::before {
  width: 78%;
  height: 63%;
  left: -8%;
  top: 16%;
  transform: rotate(-11deg);
  border-radius: 47% 53% 41% 59% / 54% 42% 58% 46%;
  background: rgba(255, 255, 255, 0.52);
  box-shadow: 0 22px 42px rgba(21, 33, 28, 0.17);
}
.system-art::after {
  width: 72%;
  height: 58%;
  right: -6%;
  bottom: 4%;
  transform: rotate(13deg);
  border-radius: 49% 51% 47% 53% / 58% 40% 60% 42%;
  background: rgba(21, 33, 28, 0.16);
}
.system-art i { inset: 0; opacity: 0.25; background-image: repeating-linear-gradient(90deg, #fff 0 1px, transparent 1px 7px), repeating-linear-gradient(0deg, #fff 0 1px, transparent 1px 6px); }
.system-art span { position: absolute; z-index: 3; top: 0.65rem; right: 1.1rem; color: rgba(255, 255, 255, 0.82); font-family: Georgia, serif; font-size: 4.5rem; }
.urban .system-art { background: linear-gradient(140deg, #244d42, #8bad9f); }
.outdoor .system-art { background: linear-gradient(140deg, #263945, #9cabb0); }
.stretch .system-art { background: linear-gradient(140deg, #775e49, #c6a88d); }
.system-body { padding: 1.6rem; }
.card-kicker, .fabric-code { margin: 0; color: var(--green); font-size: 0.65rem; font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase; }
.system-body h3 { margin: 0.45rem 0 0; font-size: 1.65rem; letter-spacing: -0.03em; }
.system-body h4 { margin: 1.3rem 0 0.55rem; font-family: Georgia, serif; font-size: 1rem; font-weight: 400; }
.system-body > p:last-of-type { min-height: 74px; margin: 0; color: var(--muted); font-size: 0.82rem; }
.system-body ul { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 1.35rem 0 0; padding: 0; list-style: none; }
.system-body li { padding: 0.37rem 0.55rem; border: 1px solid var(--line); border-radius: 999px; background: var(--paper); font-size: 0.63rem; font-weight: 700; }

.material-section { color: #fff; background: #192620; }
.material-heading .eyebrow { color: var(--acid); }
.material-heading > p { color: #a7b6af; }
.fabric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.13);
}
.fabric-card { background: #192620; }
.swatch { height: 195px; position: relative; overflow: hidden; }
.swatch::before, .swatch::after { content: ""; position: absolute; inset: -14%; }
.swatch::before { transform: rotate(8deg) scale(1.1); background-image: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.15) 0 1px, transparent 1px 5px), repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.13) 0 1px, transparent 1px 4px); }
.swatch::after { width: 72%; height: 70%; inset: 18% auto auto 14%; transform: rotate(-9deg); border-radius: 44% 56% 48% 52% / 61% 45% 55% 39%; background: rgba(255, 255, 255, 0.12); box-shadow: 20px 20px 50px rgba(0, 0, 0, 0.22); }
.swatch-forest { background: linear-gradient(140deg, #132d25, #3e7a67); }
.swatch-stone { background: linear-gradient(140deg, #d9d5ca, #6c706b); }
.swatch-navy { background: linear-gradient(140deg, #162631, #476777); }
.swatch-mist { background: linear-gradient(140deg, #d5e3e4, #7c9596); }
.swatch-olive { background: linear-gradient(140deg, #c9ceb1, #687052); }
.swatch-clay { background: linear-gradient(140deg, #c5a68c, #5b4033); }
.fabric-card-body { padding: 1.45rem; }
.fabric-card .fabric-code { color: var(--acid); }
.fabric-card h3 { margin: 0.4rem 0 1.2rem; font-size: 1.22rem; }
.fabric-card dl, .fabric-card dl div { margin: 0; }
.fabric-card dl div { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: 1rem; padding: 0.6rem 0; border-top: 1px solid rgba(255, 255, 255, 0.1); font-size: 0.7rem; }
.fabric-card dt { color: #8e9e96; }
.fabric-card dd { margin: 0; text-align: right; }
.fabric-card a { display: flex; justify-content: space-between; margin-top: 1.3rem; padding-top: 0.95rem; border-top: 1px solid rgba(255, 255, 255, 0.1); color: var(--acid); font-size: 0.72rem; font-weight: 800; }

.development-loop { overflow: hidden; border-top: 1px solid var(--line); }
.development-loop article {
  display: grid;
  grid-template-columns: 120px 1fr;
  align-items: center;
  gap: 1.5rem;
  padding: 1.7rem 0;
  border-bottom: 1px solid var(--line);
}
.development-loop > article > span { color: #a6b1ab; font-family: Georgia, serif; font-size: 2.1rem; }
.development-loop article > div { display: grid; grid-template-columns: 0.72fr 1.28fr; align-items: center; gap: 2rem; }
.development-loop h3 { margin: 0; font-size: 1.05rem; }
.development-loop p { max-width: 560px; margin: 0; color: var(--muted); font-size: 0.82rem; }

.manufacturing-section { padding: 7rem 0; color: #fff; background: #111b16; }
.manufacturing-intro { display: grid; grid-template-columns: 1.08fr 0.62fr; align-items: end; gap: 5rem; margin-bottom: 3.2rem; }
.manufacturing-intro .eyebrow { color: var(--acid); }
.manufacturing-intro > div:last-child > p { color: #b0bdb7; }
.manufacturing-intro small { display: block; margin-top: 1rem; color: #7f9088; font-size: 0.65rem; line-height: 1.5; }
.manufacturing-gallery { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1rem; }
.manufacturing-gallery figure { grid-column: span 4; margin: 0; }
.manufacturing-gallery figure:nth-child(2), .manufacturing-gallery figure:nth-child(7) { grid-column: span 8; }
.manufacturing-image { aspect-ratio: 4 / 5; position: relative; overflow: hidden; border-radius: 1.1rem; background: #28342f; }
.manufacturing-gallery figure:nth-child(2) .manufacturing-image, .manufacturing-gallery figure:nth-child(7) .manufacturing-image { aspect-ratio: 16 / 9; }
.manufacturing-image img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.86) contrast(1.02); transition: transform 420ms ease; }
.manufacturing-gallery figure:hover img { transform: scale(1.025); }
.manufacturing-image span { position: absolute; top: 0.8rem; left: 0.8rem; min-width: 2rem; padding: 0.35rem 0.5rem; border-radius: 999px; color: var(--ink); background: var(--acid); text-align: center; font-size: 0.62rem; font-weight: 900; }
.manufacturing-gallery figcaption { padding: 1rem 0.15rem 1.1rem; }
.manufacturing-gallery h3 { margin: 0; font-size: 0.98rem; }
.manufacturing-gallery figcaption p { margin: 0.35rem 0 0; color: #8fa098; font-size: 0.72rem; }

.validation-section { color: #fff; background: var(--green); }
.validation-layout { display: grid; grid-template-columns: 0.67fr 1.33fr; align-items: center; gap: 5rem; }
.validation-intro .eyebrow { color: var(--acid); }
.validation-intro > p { max-width: 470px; margin: 1.5rem 0 1.8rem; color: #c7d6d0; }
.validation-panels { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.validation-panels article { padding: 1.5rem; border: 1px solid rgba(255, 255, 255, 0.16); border-radius: var(--radius); background: rgba(18, 61, 50, 0.46); }
.validation-title { display: flex; gap: 1rem; align-items: flex-start; padding-bottom: 1.2rem; border-bottom: 1px solid rgba(255, 255, 255, 0.15); }
.validation-title > span { color: var(--acid); font-family: Georgia, serif; font-size: 1rem; }
.validation-title p { margin: 0; color: #b9cac3; font-size: 0.62rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }
.validation-title h3 { margin: 0.35rem 0 0; font-size: 1.03rem; line-height: 1.25; }
.validation-panels ul { margin: 1.2rem 0 0; padding: 0; list-style: none; }
.validation-panels li { position: relative; padding: 0.56rem 0 0.56rem 1.2rem; color: #d9e3df; border-bottom: 1px solid rgba(255, 255, 255, 0.1); font-size: 0.76rem; }
.validation-panels li::before { content: ""; width: 0.4rem; height: 0.4rem; position: absolute; top: 0.9rem; left: 0; border-radius: 50%; background: var(--acid); }
.validation-panels li:last-child { border-bottom: 0; }

.about-section { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 6rem; }
.about-statement blockquote { margin: 2.2rem 0 0; padding: 1.6rem; border-left: 4px solid var(--acid); color: #fff; background: var(--ink); font-family: Georgia, serif; font-size: 1.25rem; }
.about-statement blockquote span { display: block; margin-bottom: 0.55rem; color: var(--acid); font-family: Arial, sans-serif; font-size: 0.62rem; font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase; }
.timeline { border-top: 1px solid var(--line); }
.timeline article { display: grid; grid-template-columns: 115px 1fr; gap: 2rem; padding: 1.7rem 0; border-bottom: 1px solid var(--line); }
.timeline time { color: var(--green); font-family: Georgia, serif; font-size: 2rem; }
.timeline h3 { margin: 0; font-size: 1rem; }
.timeline p { margin: 0.45rem 0 0; color: var(--muted); font-size: 0.8rem; }

.location-section { border-top: 1px solid var(--line); background: var(--paper-deep); }
.location-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.location-card { min-height: 405px; display: flex; flex-direction: column; position: relative; overflow: hidden; padding: 2.2rem; border: 1px solid rgba(21, 33, 28, 0.08); border-radius: var(--radius); }
.location-card::after { content: ""; width: 280px; height: 280px; position: absolute; top: -100px; right: -90px; border: 1px solid rgba(255, 255, 255, 0.34); border-radius: 50%; box-shadow: 0 0 0 38px rgba(255, 255, 255, 0.07), 0 0 0 76px rgba(255, 255, 255, 0.05); }
.location-suzhou { color: #fff; background: linear-gradient(145deg, #1b3029, #356655); }
.location-australia { background: linear-gradient(145deg, #f2eee4, #cddfd6); }
.location-kicker { margin: 0; color: var(--acid); font-size: 0.65rem; font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase; }
.location-australia .location-kicker { color: var(--green); }
.location-card h3 { margin: 1.15rem 0 0.75rem; font-size: clamp(2.2rem, 4vw, 3.55rem); line-height: 1; letter-spacing: -0.045em; }
.location-card > p:not(.location-kicker) { max-width: 480px; margin: 0; color: rgba(255, 255, 255, 0.72); font-size: 0.85rem; }
.location-australia > p:not(.location-kicker) { color: var(--muted); }
.location-details { display: grid; gap: 0.42rem; margin-top: auto; padding-top: 2rem; font-size: 0.75rem; font-weight: 700; }
.location-details a { text-decoration: underline; text-underline-offset: 4px; }
.location-card small { margin-top: 1rem; color: var(--muted); font-size: 0.64rem; }

.contact-section { padding: 5.8rem 0; color: #fff; background: var(--ink); }
.contact-layout { display: grid; grid-template-columns: 1.15fr 0.85fr; align-items: center; gap: 4rem; }
.contact-section .eyebrow { color: var(--acid); }
.contact-section p { max-width: 650px; margin-top: 1.4rem; color: #aebbb5; }
.contact-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
.contact-actions p { grid-column: 1 / -1; margin: 0.2rem 0 0; text-align: center; font-size: 0.69rem; }

.footer { padding: 4.5rem 0 2rem; background: #ecefe9; }
.footer-grid { display: grid; grid-template-columns: 1.35fr 0.65fr 0.9fr 1fr; gap: 3rem; }
.footer-brand { margin-bottom: 1rem; }
.footer-grid h3 { margin: 0 0 1rem; font-size: 0.69rem; letter-spacing: 0.1em; text-transform: uppercase; }
.footer-grid a:not(.brand), .footer-grid p { display: block; margin: 0.5rem 0; color: var(--muted); font-size: 0.74rem; }
.footer-grid small { display: block; margin-top: 0.7rem; color: #87938d; font-size: 0.63rem; line-height: 1.5; }
.footer-fine { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); color: #87938d; font-size: 0.65rem; }

@media (max-width: 1120px) {
  .desktop-nav { display: none; }
  .mobile-menu { display: block; margin-left: auto; }
  .nav-cta { display: none; }
  .hero { gap: 2.5rem; }
  .hero-media { min-height: 560px; }
  .system-grid, .fabric-grid { grid-template-columns: repeat(2, 1fr); }
  .system-card:last-child { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 880px) {
  .shell { width: min(100% - 36px, 1240px); }
  .topline-inner { justify-content: center; }
  .topline-inner span { display: none; }
  .hero, .section-heading, .manufacturing-intro, .validation-layout, .about-section, .contact-layout { grid-template-columns: 1fr; }
  .hero { min-height: auto; gap: 3rem; padding-top: 3.7rem; }
  .hero-media { min-height: 570px; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-grid > div:nth-child(odd) { border-left: 0; }
  .proof-grid > div:last-child { border-right: 0; }
  .section-heading, .manufacturing-intro { align-items: start; gap: 1.4rem; }
  .section-heading > p, .manufacturing-intro > div:last-child { max-width: 640px; }
  .wearer-grid { grid-template-columns: 1fr; }
  .wearer-grid article { min-height: 220px; }
  .development-loop article > div { grid-template-columns: 0.85fr 1.15fr; }
  .validation-layout, .about-section, .contact-layout { gap: 3rem; }
  .location-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .shell { width: min(100% - 24px, 1240px); }
  .nav-wrap { min-height: 72px; }
  .brand-name { font-size: 0.82rem; }
  .hero h1 { font-size: clamp(3.2rem, 16vw, 4.8rem); }
  .hero-media { min-height: 485px; border-radius: 1.4rem; }
  .hero-thesis { top: 1.35rem; left: 1.35rem; }
  .hero-thesis strong { max-width: 250px; font-size: 2.1rem; }
  .hero-detail { width: 45%; height: 46%; right: 1rem; bottom: 1rem; }
  .hero-meta span { width: 100%; text-align: center; }
  .proof-grid, .system-grid, .fabric-grid, .validation-panels, .contact-actions, .footer-grid { grid-template-columns: 1fr; }
  .proof-grid > div { min-height: 105px; border: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.12); }
  .section { padding-top: 5rem; padding-bottom: 5rem; }
  .section-heading h2, .manufacturing-intro h2, .validation-intro h2, .about-statement h2, .contact-section h2 { font-size: 2.8rem; }
  .system-card:last-child { grid-column: auto; }
  .development-loop article { grid-template-columns: 60px 1fr; gap: 0.8rem; }
  .development-loop article > div { grid-template-columns: 1fr; gap: 0.45rem; }
  .manufacturing-gallery { grid-template-columns: 1fr; }
  .manufacturing-gallery figure, .manufacturing-gallery figure:nth-child(2), .manufacturing-gallery figure:nth-child(7) { grid-column: auto; }
  .manufacturing-image, .manufacturing-gallery figure:nth-child(2) .manufacturing-image, .manufacturing-gallery figure:nth-child(7) .manufacturing-image { aspect-ratio: 4 / 3; }
  .timeline article { grid-template-columns: 85px 1fr; gap: 1rem; }
  .contact-actions p { grid-column: auto; }
  .footer-grid { gap: 2rem; }
  .footer-fine { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}