*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #eef2f6;
  --bg-alt: #e4e9f0;
  --surface: #ffffff;
  --ink: #121820;
  --ink-soft: #3d4a5a;
  --steel: #6a7788;
  --mist: #8a96a5;
  --brand: #0c2d6b;
  --brand-bright: #1a4a9e;
  --copper: #a65f28;
  --copper-soft: #c48a4a;
  --line: rgba(18, 24, 32, 0.09);
  --line-strong: rgba(18, 24, 32, 0.14);
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --nav-h: 4.5rem;
  --shadow: 0 12px 40px rgba(18, 24, 32, 0.08);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn,
.lang-switch button,
.nav__toggle,
.nav__links a {
  -webkit-tap-highlight-color: transparent;
}

body.rtl {
  /* Kept for compatibility; layout stays LTR for all languages */
  direction: ltr;
}

img {
  max-width: 100%;
  display: block;
}

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

button,
input,
textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

ul {
  list-style: none;
}

.container {
  width: min(1180px, calc(100% - 3rem));
  margin-inline: auto;
}

/* ——— Nav ——— */
.nav {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), backdrop-filter 0.4s var(--ease),
    border-color 0.4s, color 0.3s;
  border-bottom: 1px solid transparent;
  color: #fff;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
  color: var(--ink);
  box-shadow: 0 4px 24px rgba(18, 24, 32, 0.06);
}

.nav__inner {
  width: min(1180px, calc(100% - 3rem));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.nav__logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  background: transparent;
}

.nav__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  line-height: 1.3;
  text-transform: uppercase;
  max-width: 11.5rem;
}

.nav__name span {
  display: block;
  opacity: 0.72;
  font-weight: 500;
  font-size: 0.58rem;
  letter-spacing: 0.04em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav__links a {
  font-size: 0.82rem;
  font-weight: 500;
  opacity: 0.78;
  letter-spacing: 0.02em;
  transition: opacity 0.25s, color 0.25s;
}

.nav__links a:hover {
  opacity: 1;
}

.nav.scrolled .nav__links a {
  color: var(--ink-soft);
  opacity: 1;
}

.nav.scrolled .nav__links a:hover {
  color: var(--brand);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-switch {
  display: flex;
  gap: 0.15rem;
  padding: 0.2rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 2px;
}

.nav.scrolled .lang-switch {
  border-color: var(--line-strong);
}

.lang-switch button {
  padding: 0.35rem 0.55rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  opacity: 0.7;
  cursor: pointer;
  border-radius: 1px;
  transition: color 0.2s, background 0.2s, opacity 0.2s;
}

.lang-switch button.active {
  background: var(--brand);
  color: #fff;
  opacity: 1;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.35s var(--ease), background 0.3s, color 0.3s,
    border-color 0.3s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--copper);
  color: #fff;
}

.btn--primary:hover {
  background: var(--copper-soft);
  color: var(--ink);
}

.btn--ghost {
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff;
}

.btn--ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.section--alt .btn--ghost,
.section .btn--ghost:not(.hero *) {
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn--nav {
  padding: 0.55rem 1.1rem;
  font-size: 0.72rem;
}

.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.3s, opacity 0.3s;
}

/* ——— Hero ——— */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--nav-h) + 2rem) 0 5rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img,
.hero__bg picture,
.about__visual picture,
.product__img picture {
  width: 100%;
  height: 100%;
  display: block;
}

.hero__bg picture img,
.about__visual picture img,
.product__img picture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__bg picture img {
  object-position: center 40%;
  transform: scale(1.02);
  animation: heroZoom 22s var(--ease) infinite alternate;
  filter: contrast(1.05) saturate(1.05);
}

@keyframes heroZoom {
  from {
    transform: scale(1.02);
  }
  to {
    transform: scale(1.06);
  }
}

.hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      105deg,
      rgba(12, 45, 107, 0.72) 0%,
      rgba(18, 24, 32, 0.55) 48%,
      rgba(18, 24, 32, 0.35) 100%
    ),
    linear-gradient(to top, rgba(238, 242, 246, 0.95) 0%, transparent 38%);
  z-index: 1;
}

.hero__grain {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0.1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.hero__content {
  position: relative;
  z-index: 3;
  width: min(1180px, calc(100% - 3rem));
  margin-inline: auto;
}

.hero__est {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--copper-soft);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: riseIn 0.9s var(--ease) 0.15s forwards;
}

.hero__brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 7vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: #fff;
  opacity: 0;
  animation: riseIn 1s var(--ease) 0.3s forwards;
}

.hero__brand-sub {
  display: block;
  margin-top: 0.45rem;
  font-size: clamp(0.95rem, 2.2vw, 1.4rem);
  font-weight: 600;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.82);
}

.hero__line {
  max-width: 34rem;
  margin-top: 1.75rem;
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.7;
  opacity: 0;
  animation: riseIn 1s var(--ease) 0.5s forwards;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.5rem;
  opacity: 0;
  animation: riseIn 1s var(--ease) 0.7s forwards;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  inset-inline-end: max(1.5rem, calc((100% - 1180px) / 2));
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  opacity: 0;
  animation: riseIn 1s var(--ease) 1s forwards;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--copper-soft), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%,
  100% {
    opacity: 0.4;
    transform: scaleY(0.7);
    transform-origin: top;
  }
  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ——— Sections ——— */
.section {
  padding: 7rem 0;
  position: relative;
}

.section--alt {
  background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
}

.eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 4vw, 3rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 22ch;
  overflow: visible;
}

.section-sub {
  margin-top: 1rem;
  max-width: 36rem;
  color: var(--steel);
  font-size: 1.02rem;
}

.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ——— About ——— */
.about__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: start;
}

.about__body {
  margin-top: 1.75rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.8;
}

.about__values {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-strong);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--copper);
}

.about__visual {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.about__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: contrast(1.04) saturate(1.03);
  transition: transform 1.2s var(--ease);
}

.about__visual:hover img {
  transform: scale(1.04);
}

.about__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(18, 24, 32, 0.25),
    transparent 50%
  );
  pointer-events: none;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 5rem;
}

.stat {
  position: relative;
  padding: 1.75rem 1.35rem 1.5rem;
  text-align: start;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: visible;
  transition: transform 0.45s var(--ease), border-color 0.35s,
    box-shadow 0.45s;
}

.stat::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--copper-soft), var(--copper));
}

.stat::after {
  content: "";
  position: absolute;
  inset-inline-end: -20%;
  top: -30%;
  width: 55%;
  height: 80%;
  background: radial-gradient(
    circle,
    rgba(12, 45, 107, 0.08),
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

.stat:hover {
  transform: translateY(-4px);
  border-color: rgba(166, 95, 40, 0.35);
  box-shadow: 0 18px 40px rgba(18, 24, 32, 0.12);
}

.stat__index {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--brand-bright);
  margin-bottom: 0.85rem;
}

.stat__row {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.15rem 0.3rem;
  line-height: 1.2;
  direction: ltr;
  unicode-bidi: isolate;
}

.stat__prefix {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: var(--copper);
  letter-spacing: 0;
}

.stat__num {
  font-family: var(--font-body);
  font-weight: 800;
  font-size: clamp(1.65rem, 3.2vw, 2.35rem);
  letter-spacing: -0.02em;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
  line-height: 1.25;
  padding-block: 0.1em;
  overflow: visible;
}

.stat__unit {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(0.85rem, 1.4vw, 1.05rem);
  color: var(--copper);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.stat__label {
  position: relative;
  z-index: 1;
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--steel);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ltr-text {
  direction: ltr;
  unicode-bidi: isolate;
  text-align: start;
}

/* ——— Products ——— */
.products__head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.product {
  position: relative;
  display: block;
  overflow: hidden;
  isolation: isolate;
  min-height: 380px;
  cursor: default;
  background: var(--ink);
  box-shadow: var(--shadow);
}

.product__img {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.product__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05) saturate(1.04);
  transition: transform 1.1s var(--ease);
  background: #1a222c;
}

.product:hover .product__img img {
  transform: scale(1.08);
}

.product__shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to top,
    rgba(18, 24, 32, 0.92) 0%,
    rgba(18, 24, 32, 0.4) 45%,
    rgba(18, 24, 32, 0.15) 100%
  );
  transition: background 0.5s;
}

.product:hover .product__shade {
  background: linear-gradient(
    to top,
    rgba(12, 45, 107, 0.9) 0%,
    rgba(18, 24, 32, 0.45) 50%,
    rgba(18, 24, 32, 0.2) 100%
  );
}

.product__body {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  z-index: 2;
  padding: 1.75rem;
}

.product__spec {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper-soft);
  margin-bottom: 0.6rem;
}

.product__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: #fff;
  letter-spacing: -0.01em;
}

.product__desc {
  margin-top: 0.65rem;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.55;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--ease), opacity 0.4s, margin 0.4s;
}

.product:hover .product__desc {
  max-height: 8rem;
  opacity: 1;
  margin-top: 0.65rem;
}

/* ——— Advantages ——— */
.adv__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
  margin-top: 3.5rem;
}

.adv-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 2.25rem 1.75rem;
  box-shadow: var(--shadow);
  transition: transform 0.4s, border-color 0.3s;
}

.adv-card:hover {
  transform: translateY(-3px);
  border-color: rgba(12, 45, 107, 0.25);
}

.adv-card__num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--brand-bright);
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
}

.adv-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.adv-card__desc {
  font-size: 0.9rem;
  color: var(--steel);
  line-height: 1.65;
}

/* ——— Sustainability ——— */
.sustain {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0c2d6b 0%, #163a6e 45%, #1a4a5c 100%);
  color: #fff;
}

.sustain .eyebrow {
  color: var(--copper-soft);
}

.sustain .section-title {
  color: #fff;
}

.sustain__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      ellipse 70% 50% at 85% 30%,
      rgba(196, 138, 74, 0.2),
      transparent 55%
    ),
    radial-gradient(
      ellipse 50% 50% at 10% 80%,
      rgba(255, 255, 255, 0.06),
      transparent 50%
    );
  pointer-events: none;
}

.sustain__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.sustain__body {
  margin-top: 1.5rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
  line-height: 1.8;
}

.sustain__metrics {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.sustain__metric {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 1.75rem 2rem;
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  backdrop-filter: blur(8px);
}

.sustain__metric-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 2vw, 1.65rem);
  color: #fff;
  min-width: 0;
  max-width: 16rem;
  line-height: 1.2;
}

.sustain__metric-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ——— Contact ——— */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact__item dt {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 0.4rem;
}

.contact__item dd {
  color: var(--ink);
  font-size: 1.05rem;
}

.contact__item a:hover {
  color: var(--brand);
}

.contact__map-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--steel);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 0.15rem;
  width: fit-content;
  transition: color 0.25s, border-color 0.25s;
}

.contact__map-link:hover {
  color: var(--brand);
  border-color: var(--copper);
}

.contact__form {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 2.25rem;
}

.contact__form h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--ink);
}

.form-row {
  margin-bottom: 1.15rem;
}

.form-row label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 0.45rem;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  transition: border-color 0.25s, box-shadow 0.25s;
  border-radius: 0;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--brand-bright);
  box-shadow: 0 0 0 3px rgba(12, 45, 107, 0.1);
}

.form-row textarea {
  min-height: 120px;
  resize: vertical;
}

.form-note {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--steel);
}

.form-success {
  display: none;
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(166, 95, 40, 0.35);
  background: rgba(166, 95, 40, 0.08);
  color: var(--copper);
  font-size: 0.9rem;
}

.form-success.show {
  display: block;
}

.form-success.error {
  border-color: rgba(180, 50, 50, 0.4);
  background: rgba(180, 50, 50, 0.08);
  color: #a03030;
}

/* ——— Footer ——— */
.footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
  background: var(--surface);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer__brand img {
  width: 36px;
  height: 36px;
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--steel);
}

.footer__group {
  font-size: 0.8rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

/* ——— Tablet ——— */
@media (max-width: 960px) {
  :root {
    --nav-h: 4rem;
  }

  .nav__inner {
    gap: 0.75rem;
  }

  .nav__links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: calc(100dvh - var(--nav-h));
    overflow-y: auto;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    padding: 0.5rem 1.25rem 1.25rem;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s var(--ease), opacity 0.4s;
    z-index: 99;
  }

  .nav__links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__links a {
    padding: 1rem 0;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    opacity: 1;
    font-size: 1rem;
  }

  .nav.menu-open {
    background: rgba(255, 255, 255, 0.98);
    color: var(--ink);
    border-bottom-color: var(--line);
  }

  .nav.menu-open .lang-switch {
    border-color: var(--line-strong);
  }

  .nav__toggle {
    display: flex;
  }

  .nav__toggle.open span:first-child {
    transform: translateY(3.75px) rotate(45deg);
  }

  .nav__toggle.open span:last-child {
    transform: translateY(-3.75px) rotate(-45deg);
  }

  .btn--nav {
    display: none;
  }

  .lang-switch button {
    padding: 0.4rem 0.5rem;
    min-width: 2.4rem;
  }

  .about__grid,
  .sustain__inner,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about__visual {
    aspect-ratio: 16 / 10;
    max-height: 320px;
  }

  .products__grid {
    grid-template-columns: 1fr 1fr;
  }

  .adv__grid {
    grid-template-columns: 1fr 1fr;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
  }

  .stat {
    padding: 1.35rem 1.1rem 1.2rem;
  }

  .stat__num {
    font-size: clamp(1.45rem, 6vw, 1.9rem);
  }

  .products__head {
    flex-direction: column;
    align-items: start;
  }

  .section-title {
    max-width: none;
  }

  .hero {
    min-height: 100svh;
    padding: calc(var(--nav-h) + 1.5rem) 0 3.5rem;
    align-items: flex-end;
  }

  .hero__brand {
    font-size: clamp(2rem, 9vw, 3.4rem);
  }

  .hero__brand-sub {
    letter-spacing: 0.08em;
    font-size: clamp(0.85rem, 3.5vw, 1.1rem);
  }

  .hero__line {
    font-size: 0.95rem;
    max-width: none;
  }

  .hero__ctas {
    width: 100%;
  }

  .hero__ctas .btn {
    flex: 1 1 auto;
    min-height: 48px;
    padding: 0.9rem 1.1rem;
  }

  .hero__scroll {
    display: none;
  }

  .sustain__metric {
    padding: 1.25rem 1.35rem;
    gap: 1rem;
  }

  .sustain__metric-value {
    font-size: 1.55rem;
    min-width: 4rem;
  }
}

/* ——— Phone ——— */
@media (max-width: 600px) {
  .container,
  .nav__inner,
  .hero__content {
    width: calc(100% - 1.5rem);
  }

  .section {
    padding: 3.5rem 0;
  }

  .nav__name {
    max-width: 7.5rem;
    font-size: 0.55rem;
    line-height: 1.25;
  }

  .nav__logo {
    width: 38px;
    height: 38px;
  }

  .nav__actions {
    gap: 0.45rem;
  }

  .lang-switch {
    padding: 0.12rem;
  }

  .lang-switch button {
    padding: 0.35rem 0.4rem;
    font-size: 0.65rem;
    min-width: 0;
  }

  .products__grid,
  .adv__grid,
  .stats {
    grid-template-columns: 1fr;
  }

  .product {
    min-height: 280px;
  }

  .product__desc {
    max-height: 8rem;
    opacity: 1;
  }

  .product__body {
    padding: 1.35rem;
  }

  .adv-card {
    padding: 1.5rem 1.25rem;
  }

  .hero__est {
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    margin-bottom: 1rem;
  }

  .hero__ctas {
    flex-direction: column;
  }

  .hero__ctas .btn {
    width: 100%;
  }

  .btn--ghost {
    border-color: rgba(255, 255, 255, 0.55);
  }

  .contact__form {
    padding: 1.25rem;
  }

  .form-row input,
  .form-row textarea {
    font-size: 16px; /* prevent iOS zoom on focus */
    min-height: 48px;
  }

  .form-row textarea {
    min-height: 120px;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer__brand {
    align-items: flex-start;
  }
}

/* ——— Small phone ——— */
@media (max-width: 380px) {
  .nav__name {
    display: none;
  }

  .stat__num {
    font-size: 1.5rem;
  }
}

body.menu-lock {
  overflow: hidden;
  touch-action: none;
}