/* ---------- Reset & base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  color: var(--ink);
  background: #fff;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
  font-size: inherit;
  font-weight: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

b, strong {
  font-weight: bolder;
}

ol, ul {
  list-style: none;
}

img, svg, video, iframe {
  display: block;
  vertical-align: middle;
}

img, video {
  max-width: 100%;
  height: auto;
}

:root {
  --ink: #191b1c;
  --charcoal: #1a1c1d;
  --grey: #55575a;
  --soft: #f1f1ef;
  --orange: #df7518;
}

/* ---------- Shared type helpers ---------- */
.eyebrow, .kicker {
  text-transform: uppercase;
  letter-spacing: .2em;
  font-size: 11px;
  font-weight: 700;
  color: #777;
}

.kicker.light { color: #bbb; }
.orange { color: var(--orange); }

.eyebrow, .kicker, .kicker.light, .operation-kicker {
  color: var(--orange) !important;
}

.operation-kicker { color: #f39845; }

/* ---------- Topbar ---------- */
.topbar {
  background: var(--charcoal);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 98px;
  padding: 0 5vw;
}

.brand-logo { width: 210px; display: block; }
.brand-logo img { width: 100%; height: auto; display: block; }

.header-cta {
  border-bottom: 2px solid var(--orange);
  padding-bottom: 5px;
  font-size: 13px;
}

/* ---------- Hero ---------- */
.hero {
  color: #fff;
  height: calc(100vh - 98px);
  min-height: 730px;
  position: relative;
  overflow: hidden;
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  background: linear-gradient(90deg, #0a0a0acc, #0a0a0a4d 58%, #0a0a0a0f);
  position: absolute;
  inset: 0;
}

.hero-content {
  max-width: 900px;
  position: absolute;
  bottom: 13%;
  left: 6vw;
}

.hero h1 {
  letter-spacing: -.065em;
  margin: 26px 0;
  font-size: clamp(54px, 7.5vw, 110px);
  line-height: .91;
}

.hero h1 em, .benefits-section h2 em {
  font-family: Georgia, serif;
  font-weight: 400;
  font-style: italic;
}

.hero-copy {
  max-width: 570px;
  font-size: 18px;
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 30px;
  margin-top: 35px;
}

.button {
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px 22px;
  font-size: 13px;
  font-weight: 700;
}

.primary, .cream {
  background: var(--orange);
  color: #fff;
}

.text-button {
  border-bottom: 1px solid #ffffff80;
  padding: 16px 0;
}

.hero-proof {
  display: flex;
  align-items: center;
  gap: 12px;
  position: absolute;
  bottom: 8%;
  right: 5vw;
}

.hero-proof b { color: var(--orange); font-size: 40px; }
.hero-proof span {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: 10px;
  line-height: 1.4;
}

/* ---------- Intro ---------- */
.intro {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  padding: 130px 6vw;
}

.intro h2, .gallery-heading h2, .video-heading h2, .options h2, .quote h2 {
  letter-spacing: -.05em;
  margin: 0;
  font-size: clamp(42px, 5vw, 74px);
  line-height: .98;
}

.intro > div > p {
  max-width: 760px;
  margin: 35px 0 0;
  font-family: Georgia, serif;
  font-size: 20px;
  line-height: 1.7;
}

.intro > div > .body-copy {
  color: #666;
  margin-top: 22px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  max-width: 760px;
}

/* ---------- Video / motion section ---------- */
.video-section { background: var(--soft); padding: 130px 6vw; }
.motion-section { background: #f4f2ee; }

.video-heading, .gallery-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 50px;
  margin-bottom: 65px;
}

.gallery-heading .kicker { margin-bottom: 24px; }
.gallery-heading > p, .video-heading > p {
  color: #666;
  max-width: 430px;
  line-height: 1.7;
}

.video-heading h2 { margin-top: 18px; }

.native-video {
  background: var(--charcoal);
  width: min(100%, 520px);
  height: 610px;
  margin: 0 auto 48px;
  display: block;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 65px #00000024;
}

.native-video video {
  object-fit: cover;
  width: 100%;
  height: 100%;
  display: block;
}

.native-video::after {
  content: "";
  background: linear-gradient(#10101000, #101010eb);
  position: absolute;
  inset: 38% 0 0;
}

.native-video > div {
  z-index: 1;
  padding: 70px 34px 32px;
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
}

.native-video span {
  text-transform: uppercase;
  letter-spacing: .18em;
  color: #f39845;
  font-size: 10px;
}

.native-video h3 {
  margin: 14px 0 8px;
  font-family: Georgia, serif;
  font-size: 36px;
  font-weight: 400;
  line-height: 1.05;
}

.native-video p { color: #c7c7c7; margin: 0; font-size: 14px; line-height: 1.55; }

/* ---------- Mechanism (how it works) ---------- */
.mechanism {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  background: var(--soft);
}

.mechanism-image { min-height: 720px; position: relative; }
.mechanism-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mechanism-copy { padding: 100px 7vw; }

.mechanism-copy h2, .technical-heading h2, .fabrics h2 {
  letter-spacing: -.05em;
  margin: 18px 0 55px;
  font-size: clamp(42px, 5vw, 74px);
  line-height: .98;
}

.mechanism-copy ol { margin: 0; padding: 0; }

.mechanism-copy li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 18px;
  padding: 26px 0;
  border-top: 1px solid #ccc;
}

.mechanism-copy li > span { color: var(--orange); font-size: 11px; font-weight: 700; }
.mechanism-copy li b { font-size: 18px; }
.mechanism-copy li p { color: #666; margin: 9px 0 0; font-size: 14px; line-height: 1.65; }

/* ---------- Applications ---------- */
.applications { background: #fff; padding: 130px 6vw; }

.applications-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 50px;
  margin-bottom: 65px;
}

.applications-heading h2 {
  letter-spacing: -.05em;
  margin: 18px 0 0;
  font-size: clamp(42px, 5vw, 74px);
  line-height: .98;
}

.applications-heading > p { color: #666; max-width: 470px; line-height: 1.75; }

.applications-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.applications-grid article {
  border-top: 5px solid var(--orange);
  background: #f3f1ed;
}

.application-image { height: 300px; position: relative; overflow: hidden; }
.application-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .65s;
}

.applications-grid article:hover .application-image img { transform: scale(1.035); }

.application-copy { padding: 26px; }
.application-copy > span { color: var(--orange); font-size: 10px; font-weight: 800; }
.application-copy h3 { margin: 24px 0 12px; font-size: 21px; }
.application-copy p { color: #666; margin: 0; font-size: 13px; line-height: 1.65; }

.layout-reference {
  color: #fff;
  background: linear-gradient(125deg, #191b1c, #303234);
  display: grid;
  grid-template-columns: 1fr 310px;
  align-items: center;
  min-height: 600px;
  margin-top: 22px;
}

.layout-reference > div:first-child { padding: 75px 8vw; }

.layout-reference h3 {
  letter-spacing: -.04em;
  margin: 22px 0 28px;
  font-family: Georgia, serif;
  font-size: clamp(40px, 4.5vw, 66px);
  font-weight: 400;
  line-height: 1.02;
}

.layout-reference p:not(.kicker) { color: #c8c8c8; max-width: 650px; line-height: 1.75; }

.layout-reference small {
  color: #f09a4c;
  text-transform: uppercase;
  letter-spacing: .14em;
  margin-top: 30px;
  font-size: 9px;
  display: block;
}

.layout-diagram {
  border-left: 8px solid var(--orange);
  background: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  min-height: 600px;
  padding: 26px;
}

.layout-diagram img { object-fit: contain; width: auto; height: min(540px, 90%); }

/* ---------- States (extended / retracted) ---------- */
.states {
  background: #fff;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.states figure { height: 640px; margin: 0; position: relative; overflow: hidden; }
.states img, .gallery img, .quote > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .7s;
}

.states figure:hover img, .gallery figure:hover img { transform: scale(1.025); }

.states figcaption {
  border-top: 4px solid var(--orange);
  background: #fff;
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 5px 12px;
  padding: 22px;
  position: absolute;
  inset: auto 30px 30px;
}

.states figcaption span { color: var(--orange); grid-row: 1/3; font-size: 11px; }
.states figcaption b { font-size: 18px; }
.states figcaption small { color: #777; }

/* ---------- Benefits ---------- */
.benefits-section { background: var(--charcoal); color: #fff; padding: 130px 6vw; }
.light { color: #bbb; }

.section-heading h2 {
  letter-spacing: -.055em;
  margin: 25px 0 80px;
  font-size: clamp(42px, 5.6vw, 80px);
  line-height: 1;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #ffffff35;
}

.benefit-grid article { border-right: 1px solid #ffffff35; min-height: 260px; padding: 34px 35px 20px 0; }
.benefit-grid article + article { padding-left: 35px; }
.benefit-grid article:last-child { border-right: 0; }
.benefit-grid article > span { color: var(--orange); font-size: 11px; }
.benefit-grid h3 { margin: 55px 0 15px; font-size: 25px; }
.benefit-grid p { color: #c9c9c9; max-width: 320px; font-size: 14px; line-height: 1.65; }

/* ---------- Social feature (favourite project reels) ---------- */
.social-feature-pair {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) auto;
  gap: 5vw;
  padding: 90px 6vw;
}

.social-feature-copy { max-width: 620px; }

.social-feature-copy h2 {
  letter-spacing: -.05em;
  margin: 20px 0 28px;
  font-size: clamp(42px, 5vw, 70px);
  line-height: .98;
}

.social-feature-copy > p:not(.kicker) { color: #656565; max-width: 550px; line-height: 1.75; }

.social-feature-copy > a {
  border-bottom: 2px solid var(--orange);
  margin-top: 25px;
  padding-bottom: 6px;
  font-size: 12px;
  font-weight: 700;
  display: inline-block;
}

.social-feature-reels {
  display: grid;
  grid-template-columns: repeat(2, 360px);
  justify-content: center;
  gap: 22px;
}

.social-feature-reel {
  border-top: 6px solid var(--orange);
  background: #fff;
  overflow: hidden;
  box-shadow: 0 20px 55px #00000016;
  justify-self: center;
  width: 360px;
  max-width: 100%;
}

.social-feature-reel iframe,
.operation-reel-player iframe {
  border: 0;
  width: 100%;
  height: 720px;
  display: block;
}

.social-feature-pair-reverse { background: #f4f2ee; }
.social-feature-pair-reverse .social-feature-reels { order: -1; }

/* ---------- Gallery ---------- */
.gallery-section { padding: 130px 6vw; }

.social-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.social-project {
  color: #fff;
  background: var(--charcoal);
  height: 390px;
  position: relative;
  overflow: hidden;
  display: block;
}

.social-project > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .65s;
}

.social-project:hover > img { transform: scale(1.035); }

.project-shade {
  background: linear-gradient(#0f0f0f0a 32%, #0f0f0fe6);
  position: absolute;
  inset: 0;
}

.social-project > div {
  display: grid;
  gap: 7px;
  position: absolute;
  bottom: 22px;
  left: 24px;
  right: 24px;
}

.social-project small {
  text-transform: uppercase;
  letter-spacing: .18em;
  color: #ddd;
  font-size: 9px;
}

.social-project b { font-size: 20px; }
.social-project em { color: #f0a35c; margin-top: 3px; font-size: 11px; font-style: normal; }

/* ---------- Operation (manual / motorised) ---------- */
.options {
  color: #fff;
  display: grid;
  grid-template-columns: .8fr 1.4fr;
  gap: 80px;
  padding: 110px 6vw;
  background: linear-gradient(125deg, #17191a 0%, #2b2d2f 64%, #383a3c 100%);
  position: relative;
  overflow: hidden;
}

.options::before {
  content: "";
  filter: blur(5px);
  background: #df75181c;
  border-radius: 50%;
  width: 460px;
  height: 460px;
  position: absolute;
  bottom: -270px;
  left: -180px;
}

.options > div { position: relative; }
.options h2 span { color: #f18a2d; }

.options ul { margin: 0; padding: 0; }
.options li {
  border-bottom: 1px solid #ffffff4a;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 25px 0;
}

.options li span { text-transform: uppercase; letter-spacing: .15em; color: #f0a35c; font-size: 11px; }
.options li b { text-align: right; font-size: 17px; }

.options > div:first-child > p:last-child { color: #d2d2d2; max-width: 430px; margin-top: 30px; line-height: 1.7; }

.operation-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.operation-cards article {
  color: var(--ink);
  border-top: 6px solid var(--orange);
  background: #fff;
  display: flex;
  flex-direction: column;
  min-height: 360px;
  padding: 38px;
  box-shadow: 0 22px 55px #00000030;
}

.operation-cards article > span { text-transform: uppercase; letter-spacing: .18em; color: var(--orange); font-size: 10px; font-weight: 800; }
.operation-cards h3 { margin: 35px 0 16px; font-size: 27px; }
.operation-cards p { color: #555; font-size: 14px; line-height: 1.7; }
.operation-cards .motor-card { background: #fff; }

.card-note {
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-top: auto;
  padding-top: 25px;
  font-size: 11px;
}

.manual-card .card-note { margin-top: 0; padding-top: 20px; }

.somfy-logo {
  object-fit: cover;
  border-radius: 2px;
  align-self: flex-start;
  width: 145px;
  height: 76px;
  margin-top: auto;
}

.motor-card .somfy-logo { width: 118px; height: 62px; margin-top: 0; }

.somfy-photo { height: 185px; margin: 24px -38px 18px; position: relative; overflow: hidden; }
.somfy-photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 63% 50%; }

.manual-cord-photo {
  background: linear-gradient(90deg, #9d622c, #d99a52 48%, #9d622c);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 300px;
  margin: 24px -38px 18px;
  position: relative;
  overflow: hidden;
}

.manual-cord-photo::before {
  content: "";
  filter: blur(18px);
  opacity: .38;
  background: url(images/shaderunner-endless-cord.jpg) 50%/cover no-repeat;
  position: absolute;
  inset: -18px;
}

.manual-cord-photo img {
  z-index: 1;
  object-fit: contain;
  width: auto;
  max-width: 90%;
  height: 270px;
  display: block;
  position: relative;
}

/* ---------- Operation reel feature (see it operate) ---------- */
.operation-reel-feature {
  background: #f4f2ee;
  display: grid;
  grid-template-columns: minmax(320px, 1fr) 360px;
  align-items: center;
  gap: 9vw;
  padding: 95px 10vw;
}

.operation-reel-copy { max-width: 660px; }

.operation-reel-copy h2 {
  letter-spacing: -.05em;
  margin: 20px 0 28px;
  font-size: clamp(42px, 5vw, 70px);
  line-height: .98;
}

.operation-reel-copy > p:not(.kicker) { color: #656565; max-width: 560px; line-height: 1.75; }

.operation-reel-copy > a {
  border-bottom: 2px solid var(--orange);
  margin-top: 24px;
  padding-bottom: 6px;
  font-size: 12px;
  font-weight: 700;
  display: inline-block;
}

.operation-reel-player { width: 360px; max-width: 100%; }

.operation-reel-player::before {
  content: "PLAY ON THIS PAGE";
  background: var(--charcoal);
  color: #fff;
  letter-spacing: .16em;
  padding: 12px 16px;
  font-size: 9px;
  font-weight: 800;
  display: block;
}

/* ---------- Technical / spec list ---------- */
.technical { background: #fff; padding: 130px 6vw; }

.technical-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 50px;
  margin-bottom: 65px;
}

.technical-heading h2 { margin-bottom: 0; }
.technical-heading > p { color: #666; max-width: 480px; line-height: 1.7; }

.technical-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  min-height: 600px;
}

.spec-list { background: var(--charcoal); padding: 45px; }
.spec-list > div {
  color: #fff;
  border-bottom: 1px solid #ffffff28;
  display: flex;
  justify-content: space-between;
  gap: 25px;
  padding: 25px 0;
}

.spec-list span { text-transform: uppercase; letter-spacing: .12em; color: #aaa; font-size: 11px; }
.spec-list b { text-align: right; font-size: 16px; }

.technical-image { position: relative; }
.technical-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Fabrics ---------- */
.fabrics {
  background: var(--charcoal);
  color: #fff;
  display: grid;
  grid-template-columns: .8fr 1.4fr;
  gap: 80px;
  padding: 120px 6vw;
}

.fabric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #ffffff35;
}

.fabric-grid article { border-right: 1px solid #ffffff35; padding: 30px; }
.fabric-grid article:last-child { border-right: 0; }
.fabric-grid span { color: var(--orange); font-size: 11px; }
.fabric-grid h3 { margin: 45px 0 15px; font-size: 22px; }
.fabric-grid p { color: #c7c7c7; font-size: 14px; line-height: 1.7; }

/* ---------- Engineering layout (social-feature-final) ---------- */
.social-feature-final {
  color: #fff;
  isolation: isolate;
  background: #151718;
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(300px, .82fr) minmax(440px, 1.18fr);
  gap: 7vw;
  padding: 90px 10vw;
  align-items: center;
}

.social-feature-final::before {
  content: "";
  z-index: -2;
  filter: blur(2px);
  opacity: .76;
  background: url(images/engineering-section-background.jpg) 50% 54%/cover no-repeat;
  position: absolute;
  inset: -12px;
  transform: scale(1.02);
}

.social-feature-final::after {
  content: "";
  z-index: -1;
  background: linear-gradient(90deg, #121415d1 0%, #121415a8 46%, #12141580 100%);
  position: absolute;
  inset: 0;
}

.social-feature-final .social-feature-copy > p:not(.kicker) { color: #c7c7c7; }
.social-feature-final .social-feature-reel { box-shadow: 0 22px 60px #0005; }

.engineering-diagram {
  width: 100%;
  max-width: 720px;
  color: var(--ink);
  border-top: 5px solid var(--orange);
  background: #dedbd4;
  justify-self: end;
  overflow: hidden;
  box-shadow: 0 18px 50px #00000035;
}

.diagram-label {
  background: #d2cec6;
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  padding: 16px 20px 12px;
}

.diagram-label span { text-transform: uppercase; letter-spacing: .18em; color: #b6570e; font-size: 9px; font-weight: 800; }
.diagram-label b { text-align: right; font-size: 12px; }

.engineering-diagram > img {
  filter: grayscale() sepia(.18) contrast(1.08);
  mix-blend-mode: multiply;
  width: 100%;
  height: auto;
  display: block;
}

.diagram-metrics {
  color: #fff;
  background: #292b2c;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.diagram-metrics span {
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #bbb;
  border-right: 1px solid #ffffff20;
  padding: 14px 10px;
  font-size: 8px;
}

.diagram-metrics span:last-child { border-right: 0; }
.diagram-metrics b { color: #f39845; letter-spacing: 0; margin-bottom: 4px; font-size: 17px; display: block; }

/* ---------- FAQ ---------- */
.faq-section {
  background: #f6f4f0;
  display: grid;
  grid-template-columns: .7fr 1.3fr;
  gap: 80px;
  padding: 130px 6vw;
}

.faq-heading h2 {
  letter-spacing: -.045em;
  margin: 18px 0 0;
  font-family: Georgia, serif;
  font-size: clamp(44px, 5vw, 72px);
  font-weight: 400;
  line-height: 1.02;
}

.faq-list { border-top: 1px solid #d4d0c9; }
.faq-list details { border-bottom: 1px solid #d4d0c9; padding: 0; }

.faq-list summary {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  padding: 28px 0;
  font-size: 16px;
  font-weight: 700;
  list-style: none;
}

.faq-list summary::-webkit-details-marker { display: none; }

.faq-list summary i {
  color: var(--orange);
  font-size: 18px;
  font-style: normal;
  font-weight: 400;
  transition: transform .25s;
}

.faq-list details[open] summary i { transform: rotate(45deg); }

.faq-list details p {
  color: #5f5f5f;
  max-width: 800px;
  margin: -5px 45px 28px 0;
  font-size: 15px;
  line-height: 1.72;
}

/* ---------- Closing quote / CTA ---------- */
.quote {
  color: #fff;
  display: flex;
  align-items: center;
  min-height: 720px;
  position: relative;
}

.quote-shade {
  background: linear-gradient(90deg, #121212e6, #12121273);
  position: absolute;
  inset: 0;
}

.quote-content { max-width: 690px; margin-left: 6vw; position: relative; }
.quote-content .kicker { margin-bottom: 30px; }
.quote-content > p:not(.kicker) { max-width: 560px; font-size: 17px; line-height: 1.65; }

.phone { border-bottom: 1px solid; font-size: 13px; }

/* ---------- Thank-you page ---------- */
.thank-you {
  min-height: calc(100vh - 98px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 6vw;
  text-align: center;
}

.thank-you-content { max-width: 560px; margin: 0 auto; }

.thank-you-content h2 {
  letter-spacing: -.05em;
  margin: 18px 0 20px;
  font-size: clamp(42px, 5vw, 74px);
  line-height: .98;
}

.thank-you-content > p { color: #666; line-height: 1.7; }

.thank-you-content .actions { justify-content: center; }

/* ---------- Footer ---------- */
footer {
  background: var(--charcoal);
  color: #fff;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: end;
  gap: 30px;
  padding: 55px 6vw;
}

.footer-logo { width: 240px; }

footer p { color: #aaa; max-width: 330px; font-size: 12px; line-height: 1.6; }

footer > div {
  display: flex;
  justify-content: flex-end;
  gap: 25px;
  font-size: 12px;
}

/* =========================================================
   Responsive
   ========================================================= */
@media (width <= 1200px) {
  .social-feature-pair { grid-template-columns: 1fr; }
  .social-feature-reels { width: 100%; max-width: 742px; margin: 0 auto; }
}

@media (width <= 1100px) {
  .applications-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (width <= 1050px) {
  .layout-reference { grid-template-columns: 1fr; }
}

@media (width <= 900px) {
  .operation-reel-feature, .social-feature-final { grid-template-columns: 1fr; }
  .operation-reel-player { width: min(100%, 420px); margin: 0 auto; }
  .engineering-diagram { justify-self: center; max-width: 680px; }
}

@media (width <= 800px) {
  .topbar { height: 80px; }
  .brand-logo { width: 165px; }

  .thank-you { min-height: calc(100vh - 80px); padding: 60px 24px; }

  .hero { height: 760px; min-height: 0; }
  .hero-shade { background: linear-gradient(#0a0a0a0d 25%, #0a0a0ae6); }
  .hero-content { bottom: 90px; left: 24px; right: 24px; }
  .hero h1 { font-size: 50px; }
  .hero-copy { font-size: 16px; }
  .hero-proof { display: none; }
  .button { width: 100%; }
  .actions { gap: 15px; }
  .text-button { width: auto; }

  .intro { grid-template-columns: 1fr; padding: 85px 24px; }

  .video-section, .benefits-section, .gallery-section, .applications, .technical { padding: 85px 24px; }

  .native-video { width: min(100%, 430px); height: 540px; margin-bottom: 38px; }
  .native-video > div { padding: 60px 26px 25px; }
  .native-video h3 { font-size: 31px; }

  .mechanism { grid-template-columns: 1fr; }
  .mechanism-image { min-height: 480px; }
  .mechanism-copy { padding: 80px 24px; }

  .applications-heading { display: block; }
  .applications-heading > p { margin-top: 28px; }
  .applications-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 14px; }
  .applications-grid article { scroll-snap-align: start; min-width: 86vw; }

  .layout-reference > div:first-child { padding: 65px 28px; }
  .layout-diagram { border-left: 0; border-top: 8px solid var(--orange); min-height: 570px; }
  .layout-diagram img { height: 520px; }

  .states { grid-template-columns: 1fr; }
  .states figure { height: 480px; }

  .benefit-grid { grid-template-columns: 1fr; }
  .benefit-grid article, .benefit-grid article + article {
    border-bottom: 1px solid #ffffff35;
    border-right: 0;
    min-height: 0;
    padding: 28px 0;
  }
  .benefit-grid h3 { margin: 30px 0 10px; }

  .social-feature-pair { padding: 80px 24px; }
  .social-feature-reels { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; justify-content: flex-start; max-width: none; padding-bottom: 14px; }
  .social-feature-reel { width: min(82vw, 360px); min-width: min(82vw, 360px); }
  .social-feature-reel iframe, .operation-reel-player iframe { height: 700px; }
  .operation-reel-player { width: min(82vw, 360px); }

  .gallery-heading, .video-heading { display: block; }
  .gallery-heading > p, .video-heading > p { margin-top: 30px; }
  .social-gallery { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 16px; }
  .social-project { scroll-snap-align: start; min-width: 86vw; height: 440px; }

  .options { grid-template-columns: 1fr; gap: 40px; padding: 80px 24px; }
  .options li { display: block; }
  .options li b { text-align: left; margin-top: 10px; display: block; }
  .operation-cards { grid-template-columns: 1fr; }

  .operation-reel-feature { gap: 45px; padding: 80px 24px; }

  .technical-heading { display: block; }
  .technical-heading > p { margin-top: 30px; }
  .technical-grid { grid-template-columns: 1fr; }
  .spec-list { padding: 25px; }
  .spec-list > div { display: block; }
  .spec-list b { text-align: left; margin-top: 8px; display: block; }
  .technical-image { min-height: 460px; }

  .fabrics { grid-template-columns: 1fr; gap: 35px; padding: 80px 24px; }
  .fabric-grid { grid-template-columns: 1fr; }
  .fabric-grid article { border-bottom: 1px solid #ffffff35; border-right: 0; padding: 28px 0; }
  .fabric-grid h3 { margin: 25px 0 10px; }

  .social-feature-final { padding: 80px 24px; }
  .diagram-label { display: grid; }
  .diagram-label b { text-align: left; }
  .diagram-metrics { grid-template-columns: repeat(2, 1fr); }
  .diagram-metrics span:nth-child(2) { border-right: 0; }
  .diagram-metrics span:nth-child(-n+2) { border-bottom: 1px solid #ffffff20; }

  .faq-section { grid-template-columns: 1fr; gap: 45px; padding: 85px 24px; }
  .faq-list summary { padding: 24px 0; }
  .faq-list details p { margin: -4px 28px 24px 0; }

  .quote { min-height: 680px; }
  .quote-content { margin: 0 24px; }
  .quote > img { object-position: 65% center; }
  .phone { margin-top: 8px; }

  footer { grid-template-columns: 1fr; align-items: start; }
  footer > div { flex-wrap: wrap; justify-content: flex-start; }
}