/* ==========================================================================
   SANDLINE — LP-ELEC-003
   Smart entry security for Gulf villas. Sand ground, charcoal structure,
   oxidised copper accent. Products are drawn in SVG, never photographed.
   --------------------------------------------------------------------------
   01. Fonts            09. Products
   02. Tokens           10. Figures
   03. Reset            11. Install
   04. Utilities        12. Contact
   05. Header           13. Footer
   06. Hero             14. Responsive
   07. Ticker
   08. Capability / Feature
   ========================================================================== */

/* 01. Fonts --------------------------------------------------------------- */
@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/space-grotesk-latin.woff2") format("woff2");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "DM Sans";
  src: url("../fonts/dm-sans-latin.woff2") format("woff2");
  font-weight: 100 1000;
  font-style: normal;
  font-display: swap;
}

/* 02. Tokens -------------------------------------------------------------- */
:root {
  --sand: #F4EEE3;
  --sand-2: #EDE4D5;
  --sand-3: #E2D6C1;
  --ivory: #FBF7EF;
  --char: #191715;
  --char-2: #2E2925;
  --char-3: #4A423A;
  --copper: #B0703C;
  --copper-2: #8C5225;
  --copper-3: #D9A876;
  --muted: #6E655A;
  --muted-2: #8C8375;
  --line: #DCD1BD;
  --line-strong: #C9BCA3;

  --display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --sans: "DM Sans", "Helvetica Neue", Arial, sans-serif;

  --shell: 1300px;
  --gutter: 44px;
  --pad: 118px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* 03. Reset --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--sand);
  color: var(--char);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.66;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.is-locked { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 400; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--copper); color: var(--ivory); }

/* 04. Utilities ----------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 200;
  padding: 12px 20px;
  background: var(--char);
  color: var(--ivory);
  font-size: 13px;
}
.skip-link:focus { left: 12px; top: 12px; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--display);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 24px;
}
.eyebrow__rule {
  display: block;
  width: 28px;
  height: 1px;
  background: currentColor;
  flex: 0 0 auto;
}

.section-head { margin-bottom: 62px; max-width: 820px; }
.section-head--split {
  max-width: none;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 56px;
}
.section-title {
  font-family: var(--display);
  font-size: clamp(2rem, 3.6vw, 3.15rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.028em;
  color: var(--char);
}
.section-title em {
  font-style: normal;
  color: var(--copper);
}
.section-note {
  max-width: 296px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  padding-bottom: 6px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 15px 28px;
  font-family: var(--display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: background-color .28s var(--ease), color .28s var(--ease),
              border-color .28s var(--ease), transform .28s var(--ease);
}
.btn--copper { background: var(--copper); color: var(--ivory); }
.btn--copper:hover { background: var(--copper-2); transform: translateY(-1px); }
.btn--line { border-color: var(--line-strong); color: var(--char); }
.btn--line:hover { border-color: var(--char); }
.btn--sm { padding: 10px 20px; font-size: 11px; }
.btn--block { width: 100%; }

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .75s var(--ease), transform .75s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

/* 05. Header -------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(244, 238, 227, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .35s var(--ease), background-color .35s var(--ease);
}
.site-header.is-stuck {
  background: rgba(251, 247, 239, 0.97);
  border-bottom-color: var(--line);
}
.site-header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 30px;
  height: 78px;
}
.site-header__inner > .brand { justify-self: start; }

.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand__mark { width: 25px; height: 25px; color: var(--copper); flex: 0 0 auto; }
.brand__word {
  display: block;
  font-family: var(--display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--char);
}

.nav { justify-self: center; display: flex; align-items: center; }
.nav__list { display: flex; align-items: center; gap: 32px; }
.nav__link {
  font-family: var(--display);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--char-3);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}
.nav__link:hover,
.nav__link.is-active { color: var(--copper); border-bottom-color: var(--copper); }
.nav__foot { display: none; }

.site-header__aside {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 12px;
}

.burger {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line-strong);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
}
.burger span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--char);
  transition: transform .3s var(--ease);
}
.burger[aria-expanded="true"] span:first-child { transform: translateY(3.7px) rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { transform: translateY(-3.7px) rotate(-45deg); }

/* 06. Hero ---------------------------------------------------------------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 0;
  padding-top: 78px;
  background: var(--sand);
  border-bottom: 1px solid var(--line);
}
.hero__media {
  position: relative;
  order: 1;
  min-height: 560px;
  overflow: hidden;
}
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 46%;
  filter: saturate(0.82) contrast(1.04) sepia(0.12);
}
.hero__badge {
  position: absolute;
  left: 26px;
  bottom: 26px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  background: rgba(25, 23, 21, 0.82);
  backdrop-filter: blur(6px);
  color: var(--ivory);
  font-family: var(--display);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
}
.hero__badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--copper-3);
  box-shadow: 0 0 0 3px rgba(217, 168, 118, 0.28);
}

.hero__copy {
  order: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: 88px var(--gutter) 84px 62px;
  padding-right: max(var(--gutter), calc((100vw - var(--shell)) / 2 + var(--gutter)));
}
.hero__title {
  font-family: var(--display);
  font-size: clamp(2.6rem, 4.6vw, 4.15rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin-bottom: 28px;
}
.hero__title-em {
  display: block;
  color: var(--copper);
}
.hero__lede {
  max-width: 430px;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--char-3);
  margin-bottom: 34px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 56px;
}
.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 470px;
  border-top: 1px solid var(--line-strong);
  padding-top: 22px;
}
.hero__stats > div + div {
  padding-left: 20px;
  border-left: 1px solid var(--line);
}
.hero__stats dt {
  font-family: var(--display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 7px;
}
.hero__stats dd {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--char);
}
.hero__stats dd i {
  font-family: var(--sans);
  font-size: 11px;
  font-style: normal;
  font-weight: 400;
  color: var(--muted);
  margin-left: 3px;
}

/* 07. Ticker -------------------------------------------------------------- */
.ticker {
  overflow: hidden;
  background: var(--char);
  color: var(--sand);
  padding: 15px 0;
}
.ticker__track {
  display: flex;
  align-items: center;
  gap: 26px;
  width: max-content;
  animation: ticker 38s linear infinite;
  font-family: var(--display);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  white-space: nowrap;
}
.ticker__track span:nth-child(even) { color: var(--copper-3); }
@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* 08. Capability ---------------------------------------------------------- */
.capability { padding: var(--pad) 0; background: var(--sand); }
.capability__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line-strong);
}
.capcard {
  padding: 42px 40px 10px 0;
  border-right: 1px solid var(--line);
}
.capcard:last-child { border-right: 0; padding-right: 0; }
.capcard + .capcard { padding-left: 40px; }
.capcard__num {
  display: block;
  font-family: var(--display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--copper);
  margin-bottom: 24px;
}
.capcard__icon {
  width: 52px;
  height: 52px;
  color: var(--char-2);
  margin-bottom: 26px;
}
.capcard h3 {
  font-family: var(--display);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.capcard p {
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--muted);
}

/* Feature ----------------------------------------------------------------- */
.feature {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  background: var(--char);
  color: var(--ivory);
}
.feature__media { position: relative; overflow: hidden; min-height: 520px; }
.feature__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.06) brightness(0.92);
}
.feature__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 86px 62px;
  padding-right: max(62px, calc((100vw - var(--shell)) / 2 + var(--gutter)));
}
.feature__copy .eyebrow { color: var(--copper-3); }
.feature__copy .section-title { color: var(--ivory); margin-bottom: 26px; }
.feature__copy .section-title em { color: var(--copper-3); }
.feature__copy > p {
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(251, 247, 239, 0.72);
  margin-bottom: 16px;
  max-width: 430px;
}
.feature__list {
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid rgba(251, 247, 239, 0.16);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 24px;
}
.feature__list li {
  font-size: 13.5px;
  color: rgba(251, 247, 239, 0.7);
}
.feature__list b {
  font-family: var(--display);
  color: var(--copper-3);
  font-weight: 600;
  margin-right: 6px;
}

/* 09. Products ------------------------------------------------------------ */
.products { padding: var(--pad) 0; background: var(--sand-2); }
.products__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}
.pcard {
  display: flex;
  flex-direction: column;
  padding: 0 0 26px;
  background: var(--ivory);
  border: 1px solid var(--line);
  transition: border-color .3s var(--ease), transform .3s var(--ease),
              box-shadow .3s var(--ease);
}
.pcard:hover {
  border-color: var(--copper-3);
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(25, 23, 21, 0.07);
}
.pcard__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 0.92;
  background:
    linear-gradient(140deg, rgba(224, 212, 194, 0.55), rgba(251, 247, 239, 0)),
    var(--sand-2);
  border-bottom: 1px solid var(--line);
}
.dev { width: 52%; max-width: 132px; color: var(--char-2); }
.pcard h3 {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 24px 24px 6px;
}
.pcard__meta {
  font-family: var(--display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
  margin: 0 24px 14px;
}
.pcard__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0 24px;
}

/* 10. Figures ------------------------------------------------------------- */
.figures {
  padding: 76px 0;
  background: var(--sand);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.figures__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
}
.figures__item b {
  display: flex;
  align-items: baseline;
  gap: 5px;
  font-family: var(--display);
  font-size: clamp(2.6rem, 4.6vw, 3.9rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--char);
  margin-bottom: 14px;
}
.figures__item b i {
  font-family: var(--sans);
  font-size: 0.85rem;
  font-style: normal;
  font-weight: 500;
  color: var(--copper);
  letter-spacing: 0;
}
.figures__item p {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 300px;
}

/* 11. Install ------------------------------------------------------------- */
.install { padding: var(--pad) 0; background: var(--sand-2); }
.install__steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line-strong);
}
.install__step {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 38px 28px 0 0;
  border-right: 1px solid var(--line);
}
.install__step:last-child { border-right: 0; padding-right: 0; }
.install__step + .install__step { padding-left: 28px; }
.install__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--copper);
  color: var(--copper);
  font-family: var(--display);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: 50%;
  margin-bottom: 22px;
}
.install__step h3 {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.install__step p {
  font-size: 14px;
  line-height: 1.74;
  color: var(--muted);
}
.install__time {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--display);
  font-size: 10.5px !important;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper) !important;
}

/* 12. Contact ------------------------------------------------------------- */
.contact { padding: var(--pad) 0; background: var(--char); color: var(--ivory); }
.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: 76px;
  align-items: start;
}
.contact .eyebrow { color: var(--copper-3); }
.contact .section-title { color: var(--ivory); margin-bottom: 24px; }
.contact .section-title em { color: var(--copper-3); }
.contact__copy > p {
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(251, 247, 239, 0.66);
  max-width: 380px;
  margin-bottom: 40px;
}
.contact__meta {
  border-top: 1px solid rgba(251, 247, 239, 0.16);
  padding-top: 24px;
}
.contact__meta li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 14px;
  font-size: 14px;
  color: var(--ivory);
  padding: 9px 0;
}
.contact__meta span {
  font-family: var(--display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(251, 247, 239, 0.42);
  padding-top: 4px;
}
.contact__meta a:hover { color: var(--copper-3); }

.form { display: flex; flex-direction: column; gap: 20px; }
.form__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.field { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.field label {
  font-family: var(--display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(251, 247, 239, 0.48);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 13px 15px;
  background: rgba(251, 247, 239, 0.05);
  border: 1px solid rgba(251, 247, 239, 0.16);
  border-radius: 2px;
  color: var(--ivory);
  font-size: 14.5px;
  transition: border-color .25s var(--ease), background-color .25s var(--ease);
}
.field textarea { resize: vertical; min-height: 92px; line-height: 1.7; }
.field input::placeholder,
.field textarea::placeholder { color: rgba(251, 247, 239, 0.34); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--copper-3);
  background: rgba(251, 247, 239, 0.08);
}
.field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--copper-3) 50%),
                    linear-gradient(135deg, var(--copper-3) 50%, transparent 50%);
  background-position: calc(100% - 19px) 20px, calc(100% - 13px) 20px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
.field select option { background: var(--char); color: var(--ivory); }
.field__error { font-size: 11.5px; color: #E0A080; }
.field.has-error input,
.field.has-error select,
.field.has-error textarea { border-color: #C4795A; }

.form__note {
  font-size: 11.5px;
  line-height: 1.7;
  color: rgba(251, 247, 239, 0.38);
}
.form__success {
  font-size: 13px;
  line-height: 1.7;
  color: var(--copper-3);
  padding: 13px 15px;
  border: 1px solid rgba(217, 168, 118, 0.4);
}

/* 13. Footer -------------------------------------------------------------- */
.site-footer {
  background: var(--sand);
  border-top: 1px solid var(--line);
  padding: 70px 0 32px;
}
.site-footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 0.8fr)) minmax(0, 1fr);
  gap: 48px;
  padding-bottom: 52px;
  border-bottom: 1px solid var(--line);
}
.brand__word--footer { font-size: 19px; }
.site-footer__note {
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.74;
  color: var(--muted);
  max-width: 290px;
}
.site-footer__nav h4,
.site-footer__contact h4 {
  font-family: var(--display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 18px;
}
.site-footer__nav li { margin-bottom: 10px; }
.site-footer__nav a,
.site-footer__contact p {
  font-size: 13.5px;
  color: var(--char-3);
  line-height: 1.6;
  transition: color .25s var(--ease);
}
.site-footer__nav a:hover { color: var(--copper); }
.site-footer__contact p + p { margin-top: 8px; }
.site-footer__small { color: var(--muted-2) !important; font-size: 12px !important; }

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 26px;
  padding-top: 26px;
  font-size: 11.5px;
  color: var(--muted-2);
}
.site-footer__bottom ul { display: flex; gap: 24px; }
.site-footer__bottom a:hover { color: var(--copper); }

/* 14. Responsive ---------------------------------------------------------- */
@media (max-width: 1180px) {
  :root { --gutter: 32px; --pad: 100px; }
  .hero__copy { padding-left: 44px; }
  .products__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact__grid { gap: 52px; }
  .site-footer__top { grid-template-columns: minmax(0, 1.3fr) repeat(2, minmax(0, 1fr)); row-gap: 40px; }
  .site-footer__contact { grid-column: 1 / -1; }
}

@media (max-width: 1024px) {
  .hero { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); }
  .hero__copy { padding: 72px 32px 68px 38px; }
  .hero__stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .feature { grid-template-columns: minmax(0, 1fr); }
  .feature__media { min-height: 340px; aspect-ratio: 16 / 9; }
  .feature__copy { padding: 64px var(--gutter); }
  .install__steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .install__step { padding: 34px 26px 34px 0; border-bottom: 1px solid var(--line); }
  .install__step:nth-child(2n) { border-right: 0; }
  .install__step:nth-child(2n+1) { padding-left: 0; }
  .install__step:nth-child(2n) { padding-left: 26px; }
  .install__step:nth-last-child(-n+2) { border-bottom: 0; }
}

@media (max-width: 860px) {
  :root { --gutter: 24px; --pad: 80px; }

  .site-header__inner { grid-template-columns: 1fr auto; height: 68px; }
  .nav {
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--ivory);
    border-bottom: 1px solid var(--line);
    padding: 10px var(--gutter) 26px;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__link { padding: 15px 0; border-bottom: 1px solid var(--line); border-bottom-color: var(--line); }
  .nav__foot { display: block; margin-top: 20px; }
  .nav__foot .btn { width: 100%; }
  .site-header__aside .btn { display: none; }
  .burger { display: flex; }

  .hero { grid-template-columns: minmax(0, 1fr); padding-top: 68px; }
  .hero__media { order: 2; min-height: 0; aspect-ratio: 4 / 3.1; }
  .hero__copy { order: 1; padding: 44px var(--gutter) 44px; }
  .hero__title { font-size: clamp(2.3rem, 8.6vw, 3rem); margin-bottom: 22px; }
  .hero__lede { max-width: none; font-size: 15px; }
  .hero__actions { margin-bottom: 38px; }
  .hero__actions .btn { flex: 1 1 auto; }
  .hero__stats { max-width: none; }

  .capability__grid { grid-template-columns: minmax(0, 1fr); border-top: 1px solid var(--line-strong); }
  .capcard {
    padding: 30px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .capcard + .capcard { padding-left: 0; }
  .capcard:last-child { border-bottom: 0; padding-bottom: 0; }

  .section-head { margin-bottom: 40px; }
  .section-head--split { flex-direction: column; align-items: flex-start; gap: 22px; }
  .section-note { max-width: none; }

  .products__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }

  .figures { padding: 54px 0; }
  .figures__grid { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .figures__item p { max-width: none; }

  .install__steps { grid-template-columns: minmax(0, 1fr); }
  .install__step {
    padding: 28px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .install__step + .install__step { padding-left: 0; }
  .install__step:last-child { border-bottom: 0; padding-bottom: 0; }

  .contact__grid { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .form__row { grid-template-columns: minmax(0, 1fr); }

  .site-footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
  .site-footer__brand { grid-column: 1 / -1; }
  .site-footer__contact { grid-column: 1 / -1; }
  .site-footer__bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  :root { --gutter: 20px; --pad: 64px; }
  .hero__title { font-size: clamp(2.15rem, 9.4vw, 2.7rem); }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .hero__stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero__stats > div + div { padding-left: 12px; }
  .hero__stats dd { font-size: 17px; }

  .products__grid { grid-template-columns: minmax(0, 1fr); }
  .pcard__visual { aspect-ratio: 1 / 0.72; }
  .dev { width: 40%; }

  .site-footer__top { grid-template-columns: minmax(0, 1fr); }
  .contact__meta li { grid-template-columns: 70px minmax(0, 1fr); }
  .section-title { font-size: clamp(1.75rem, 7vw, 2.2rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .ticker__track { animation: none; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}