* {
  box-sizing: border-box;
}

:root {
  --bg: #f8fafc;
  --ink: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --card: #ffffff;
  --dark: #0f172a;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --blue: #2563eb;
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
  --radius: 24px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 64px);
  background: rgba(248, 250, 252, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: inline-grid;
  place-items: center;
  background: var(--dark);
  color: white;
  font-weight: 900;
  letter-spacing: -0.05em;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.18);
}

.brand-text {
  display: grid;
  line-height: 1.05;
}

.brand-text strong {
  font-size: 1.05rem;
}

.brand-text small {
  color: var(--muted);
  font-weight: 700;
}

.nav {
  display: flex;
  gap: 20px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--muted);
}

.nav a,
.header-cta,
.btn {
  text-decoration: none;
}

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

.header-cta {
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--dark);
  color: white;
  font-weight: 800;
  font-size: 0.92rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
  padding: clamp(64px, 10vw, 120px) clamp(18px, 4vw, 64px);
  overflow: hidden;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 920px;
  font-size: clamp(2.7rem, 7vw, 6.4rem);
  line-height: 0.9;
  letter-spacing: -0.08em;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1;
  letter-spacing: -0.055em;
  margin-bottom: 16px;
}

h3 {
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.hero-copy {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
  min-height: 52px;
  border-radius: 999px;
  font-weight: 900;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

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

.btn.primary {
  background: var(--accent);
  color: #111827;
  box-shadow: 0 16px 34px rgba(245, 158, 11, 0.28);
}

.btn.secondary {
  background: white;
  border: 1px solid var(--line);
}

.trust-row {
  margin-top: 34px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.trust-row span {
  padding: 8px 12px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.hero-card {
  position: relative;
  min-height: 540px;
  padding: 28px;
  border-radius: var(--radius);
  color: white;
  background:
    linear-gradient(145deg, #111827 0%, #172554 55%, #1e3a8a 100%);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.real-window {
  position: absolute;
  top: 42px;
  left: 34px;
  right: 34px;
  height: 292px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 82% 22%, rgba(245, 158, 11, 0.92) 0 46px, rgba(245, 158, 11, 0.28) 47px 96px, transparent 97px),
    linear-gradient(180deg, rgba(219, 234, 254, 0.22), rgba(30, 64, 175, 0.18));
  box-shadow: inset 0 0 60px rgba(255, 255, 255, 0.08);
}

.window-frame {
  position: absolute;
  inset: 22px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  padding: 14px;
  border: 10px solid rgba(241, 245, 249, 0.96);
  border-radius: 26px;
  background: rgba(226, 232, 240, 0.16);
  box-shadow:
    0 20px 45px rgba(0, 0, 0, 0.28),
    inset 0 0 0 2px rgba(15, 23, 42, 0.18);
}

.pane {
  min-height: 86px;
  border-radius: 14px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.30), rgba(255, 255, 255, 0.05) 42%, rgba(30, 58, 138, 0.28)),
    linear-gradient(180deg, rgba(148, 163, 184, 0.34), rgba(15, 23, 42, 0.08));
  border: 2px solid rgba(255, 255, 255, 0.45);
}

.window-shine {
  position: absolute;
  top: 24px;
  left: 34px;
  right: 64px;
  height: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.70);
  transform: rotate(-3deg);
}

.window-sill {
  position: absolute;
  left: 38px;
  right: 38px;
  bottom: 12px;
  height: 22px;
  border-radius: 999px;
  background: rgba(241, 245, 249, 0.92);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.25);
}

.hero-card-copy {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 28px;
  border-radius: 22px;
  background: rgba(15, 23, 42, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
}

.hero-card-copy h2 {
  margin-bottom: 12px;
  max-width: 520px;
  font-size: clamp(2rem, 4vw, 3.15rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.hero-card-copy p {
  margin-bottom: 0;
  max-width: 520px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1rem;
}

.section,
.split-section,
.cta-section {
  padding: clamp(54px, 8vw, 96px) clamp(18px, 4vw, 64px);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

.section-heading p {
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.card,
.feature-list div,
.contact-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
}

.solar-card {
  border: 2px solid #f59e0b;
}

.card p,
.feature-list p,
.about p,
.cta-section p {
  color: var(--muted);
}

.split-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 32px;
  align-items: start;
  background: var(--dark);
  color: white;
}

.split-section .eyebrow {
  color: var(--accent);
}

.feature-list {
  display: grid;
  gap: 16px;
}

.feature-list div {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.feature-list p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.74);
}

.muted {
  background: #eef2ff;
}

.area-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.area-grid span {
  padding: 18px;
  border-radius: 18px;
  background: white;
  border: 1px solid #dbeafe;
  font-weight: 900;
}

.about {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 32px;
  align-items: center;
}

.about-image {
  min-height: 390px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.88), rgba(15, 23, 42, 0.94)),
    repeating-linear-gradient(45deg, transparent, transparent 18px, rgba(255, 255, 255, 0.08) 18px, rgba(255, 255, 255, 0.08) 36px);
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 1000;
  font-size: clamp(2.5rem, 7vw, 5rem);
  letter-spacing: -0.08em;
  box-shadow: var(--shadow);
}

.note {
  padding: 18px;
  border-radius: 18px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e !important;
  font-weight: 800;
}

.cta-section {
  text-align: center;
  background: white;
}

.cta-section h2,
.cta-section p {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.contact-box {
  max-width: 720px;
  margin: 28px auto 0;
}

.contact-box .btn {
  margin: 8px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 26px clamp(18px, 4vw, 64px);
  background: var(--dark);
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .nav {
    display: none;
  }

  .hero,
  .split-section,
  .about {
    grid-template-columns: 1fr;
  }

  .hero-card {
    min-height: 430px;
  }

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

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
  }

  .header-cta {
    display: none;
  }

  .hero {
    padding-top: 48px;
  }

  .hero-card {
    min-height: 360px;
    padding: 24px;
  }

  .real-window {
    top: 28px;
    left: 22px;
    right: 22px;
    height: 210px;
  }

  .window-frame {
    inset: 14px;
    gap: 8px;
    padding: 8px;
    border-width: 7px;
    border-radius: 20px;
  }

  .pane {
    min-height: 58px;
  }

  .window-sill {
    left: 28px;
    right: 28px;
  }

  .hero-card-copy {
    padding: 22px;
  }

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

  .site-footer {
    display: block;
  }

  .site-footer p + p {
    margin-top: 8px;
  }
}