:root {
  color-scheme: light;
  --ink: #16201d;
  --muted: #5f6d68;
  --line: #dfe8e3;
  --paper: #fbfdfb;
  --panel: #ffffff;
  --brand: #1f7a4d;
  --brand-dark: #155b3a;
  --solar: #d9961f;
  --ac: #256d85;
  --soft: #eef6f1;
  --shadow: 0 18px 44px rgba(21, 49, 39, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

body[dir="rtl"] {
  font-family: Tahoma, Arial, sans-serif;
}

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

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(251, 253, 251, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: grid;
  gap: 0;
  font-weight: 800;
  letter-spacing: 0;
}

.brand span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

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

.language-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.header-contact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.header-contact a {
  color: var(--brand-dark);
}

.language-switcher a {
  border: 1px solid var(--line);
  padding: 5px 8px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 12px;
  background: var(--panel);
}

.language-switcher a.active {
  border-color: var(--brand);
  color: var(--brand-dark);
  background: var(--soft);
}

.mobile-actions {
  display: none;
}

.button,
button {
  border: 0;
  border-radius: 7px;
  padding: 12px 17px;
  background: var(--brand);
  color: white;
  font-weight: 760;
  font-size: 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.button.secondary {
  color: var(--brand-dark);
  background: var(--soft);
  border: 1px solid #c8e0d1;
}

.button.dark {
  color: white;
  background: var(--ink);
}

.hero {
  min-height: 620px;
  display: grid;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(11, 31, 25, 0.82), rgba(11, 31, 25, 0.42), rgba(251, 253, 251, 0.06)),
    url("https://images.unsplash.com/photo-1509391366360-2e959784a276?auto=format&fit=crop&w=1800&q=80") center / cover;
  color: white;
}

.hero-inner {
  max-width: 1180px;
  margin: 0 auto;
  width: 100%;
  padding: 76px 22px 56px;
}

.eyebrow {
  color: #dfeee5;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  max-width: 820px;
  margin-top: 16px;
  font-size: clamp(42px, 6vw, 78px);
}

.hero p {
  max-width: 650px;
  margin: 22px 0 0;
  color: #edf5ef;
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-proof {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(4, minmax(130px, 1fr));
  gap: 1px;
  max-width: 780px;
  background: rgba(255, 255, 255, 0.2);
}

.hero-proof div {
  background: rgba(10, 28, 23, 0.52);
  padding: 16px;
}

.hero-proof strong {
  display: block;
  font-size: 19px;
}

.hero-proof span {
  color: #dce8df;
  font-size: 12px;
}

.section {
  padding: 72px 22px;
}

.section-inner {
  max-width: 1180px;
  margin: 0 auto;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-head p {
  max-width: 620px;
  margin: 12px 0 0;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 1px 0 rgba(20, 50, 39, 0.04);
}

.card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.card p {
  color: var(--muted);
  margin: 0;
}

.product-card {
  overflow: hidden;
  padding: 0;
}

.product-visual {
  min-height: 185px;
  padding: 18px;
  display: flex;
  align-items: end;
  color: white;
  background:
    linear-gradient(145deg, rgba(20, 59, 48, 0.88), rgba(31, 122, 77, 0.32)),
    url("https://images.unsplash.com/photo-1508514177221-188b1cf16e9d?auto=format&fit=crop&w=900&q=80") center / cover;
}

.product-visual.ac {
  background:
    linear-gradient(145deg, rgba(16, 55, 72, 0.9), rgba(37, 109, 133, 0.38)),
    url("https://images.unsplash.com/photo-1497440001374-f26997328c1b?auto=format&fit=crop&w=900&q=80") center / cover;
}

.product-visual.solar {
  background:
    linear-gradient(145deg, rgba(96, 68, 11, 0.85), rgba(217, 150, 31, 0.35)),
    url("https://images.unsplash.com/photo-1509391366360-2e959784a276?auto=format&fit=crop&w=900&q=80") center / cover;
}

.product-photo {
  width: 100%;
  height: 245px;
  object-fit: contain;
  background: #f4f8f5;
  border-bottom: 1px solid var(--line);
  display: block;
}

.product-body {
  padding: 22px;
}

.spec-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

.spec-list li {
  padding-inline-start: 12px;
  border-inline-start: 2px solid #c8e0d1;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 18px;
}

.tag {
  border-radius: 999px;
  padding: 6px 9px;
  background: #f0f5f2;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.compare {
  overflow-x: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

th,
td {
  padding: 15px 16px;
  border-bottom: 1px solid var(--line);
  text-align: start;
}

th {
  background: #f1f7f3;
  font-size: 13px;
}

.band {
  background: #edf5ef;
}

.lead-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 410px;
  gap: 30px;
  align-items: start;
}

.lead-box {
  background: var(--ink);
  color: white;
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.lead-box p {
  color: #dae8df;
}

.direct-contact {
  display: grid;
  gap: 10px;
  margin: 18px 0 22px;
}

.direct-contact a {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 7px;
  padding: 12px;
  color: white;
  background: rgba(255, 255, 255, 0.08);
  overflow-wrap: anywhere;
}

.form-grid {
  display: grid;
  gap: 12px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #cfdad4;
  border-radius: 6px;
  padding: 12px 13px;
  color: var(--ink);
  background: white;
  font: inherit;
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.contact-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.contact-strip a {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 7px;
  padding: 13px;
  color: white;
  background: rgba(255, 255, 255, 0.08);
}

.footer {
  background: #101a17;
  color: white;
  padding: 42px 22px;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 28px;
}

.footer a,
.footer p {
  color: #c8d7d0;
}

.footer a {
  display: block;
  margin: 8px 0;
}

.breadcrumb {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 20px;
}

.page-hero {
  padding: 68px 22px;
  background: #edf5ef;
}

.page-hero-inner {
  max-width: 1180px;
  margin: 0 auto;
}

.page-hero p {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 17px 19px;
}

summary {
  cursor: pointer;
  font-weight: 800;
}

details p {
  margin-bottom: 0;
  color: var(--muted);
}

@media (max-width: 920px) {
  .nav {
    align-items: start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .header-contact {
    width: 100%;
  }

  .hero {
    min-height: 560px;
  }

  .hero-proof,
  .grid,
  .grid.two,
  .lead-panel,
  .footer-inner,
  .contact-strip {
    grid-template-columns: 1fr;
  }

  .section-head {
    display: block;
  }
}

@media (max-width: 620px) {
  .section {
    padding: 50px 18px;
  }

  .hero-inner {
    padding: 58px 18px 42px;
  }

  h1 {
    font-size: 40px;
  }

  .hero p {
    font-size: 17px;
  }

  .button {
    width: 100%;
  }
}