:root {
  --bg-main: #05070d;
  --bg-soft: #0a1020;
  --bg-card: rgba(12, 20, 36, 0.72);
  --electric-blue: #19b8ff;
  --solar-yellow: #ffc83d;
  --text-main: #f7f9ff;
  --text-muted: #afbdd3;
  --border-glass: rgba(255, 255, 255, 0.14);
  --shadow-main: 0 18px 45px rgba(0, 0, 0, 0.42);
  --radius-lg: 22px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Outfit", sans-serif;
  background: radial-gradient(circle at 10% 20%, #0f1b34 0%, #05070d 35%, #04050a 100%);
  color: var(--text-main);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
}

.bg-tech-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 85% 8%, rgba(25, 184, 255, 0.2), transparent 28%),
    radial-gradient(circle at 18% 75%, rgba(255, 200, 61, 0.2), transparent 30%),
    radial-gradient(circle at 50% 50%, rgba(42, 77, 150, 0.12), transparent 45%);
}

.navbar {
  transition: 0.35s ease;
}

.navbar.navbar-scrolled {
  background: rgba(6, 11, 24, 0.85);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.navbar-brand {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #111;
  background: linear-gradient(135deg, #ffd95f, #ffb21d);
}

.brand-text {
  font-size: 1.08rem;
}

.nav-link {
  color: #dbe4f4;
  font-weight: 500;
  margin-left: 0.6rem;
  transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--solar-yellow);
}

.hero-section {
  min-height: 100vh;
  position: relative;
  padding-top: 7rem;
  padding-bottom: 4rem;
  background-image: url("../img/hero-lumisolar.jpg");
  background-size: cover;
  background-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(3, 6, 13, 0.95) 15%, rgba(3, 6, 13, 0.58) 55%, rgba(3, 6, 13, 0.88) 100%),
    radial-gradient(circle at 78% 22%, rgba(255, 196, 0, 0.22), transparent 24%),
    radial-gradient(circle at 25% 80%, rgba(0, 163, 255, 0.2), transparent 27%);
}

.hero-kicker {
  color: var(--solar-yellow);
  text-transform: uppercase;
  letter-spacing: 2.2px;
  font-weight: 600;
  font-size: 0.8rem;
}

.hero-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2.3rem, 6vw, 4.6rem);
  line-height: 1;
  margin: 0;
}

.hero-title span {
  color: #d9eaff;
  font-size: clamp(1.25rem, 3.4vw, 2.1rem);
  display: inline-block;
  margin-top: 0.35rem;
}

.hero-subtitle {
  color: var(--text-muted);
  max-width: 640px;
  font-size: 1.06rem;
}

.btn-solar {
  background: linear-gradient(135deg, #ffd146, #ffb92f);
  color: #151515;
  border: 0;
  font-weight: 700;
  padding-inline: 1.4rem;
  border-radius: 999px;
  box-shadow: 0 10px 24px rgba(255, 186, 48, 0.36);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.btn-solar:hover,
.btn-solar:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(255, 186, 48, 0.48);
  color: #151515;
}

.glass-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-main);
  backdrop-filter: blur(10px);
}

.hero-panel {
  padding: 1.4rem 1.2rem;
}

.hero-checks li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.65rem;
  color: #dce9fc;
}

.hero-checks i {
  color: var(--solar-yellow);
}

.section-space {
  padding: 5rem 0;
}

.section-heading h2 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.7rem, 4.8vw, 2.45rem);
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--electric-blue);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.service-card {
  background: linear-gradient(180deg, rgba(13, 21, 39, 0.92), rgba(9, 15, 27, 0.94));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(25, 184, 255, 0.45);
  box-shadow: 0 16px 35px rgba(0, 0, 0, 0.4);
}

.service-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  opacity: 0.88;
}

.service-content {
  padding: 1.2rem;
}

.service-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.8rem;
  background: linear-gradient(135deg, rgba(25, 184, 255, 0.23), rgba(255, 200, 61, 0.24));
  color: #fff;
}

.service-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.service-content p {
  color: var(--text-muted);
  margin-bottom: 0;
}

.section-dark {
  background: linear-gradient(145deg, #080d1a 0%, #101f3a 100%);
}

.feature-list {
  display: grid;
  gap: 0.75rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
}

.feature-item i {
  color: var(--solar-yellow);
}

.stats-panel {
  display: grid;
  gap: 1rem;
  padding: 1.4rem;
}

.stat-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 1rem;
}

.stat-item h3 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 2rem;
  color: var(--solar-yellow);
  margin-bottom: 0.2rem;
}

.stat-item p {
  margin-bottom: 0;
  color: #d0dbed;
}

.gallery-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.gallery-item {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-main);
}

.gallery-item img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.section-soft {
  background: linear-gradient(180deg, rgba(10, 16, 32, 0.95), rgba(8, 13, 24, 1));
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.testimonial-card p {
  color: #dbe5f7;
}

.testimonial-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.1rem;
}

.testimonial-card span {
  color: #9db0cc;
  font-size: 0.93rem;
}

.cta-section {
  background:
    radial-gradient(circle at 15% 20%, rgba(25, 184, 255, 0.25), transparent 28%),
    radial-gradient(circle at 80% 82%, rgba(255, 200, 61, 0.24), transparent 30%),
    #070c17;
}

.cta-box {
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(9, 14, 28, 0.72);
  backdrop-filter: blur(8px);
}

.cta-box h2 {
  font-family: "Space Grotesk", sans-serif;
  margin-bottom: 0.8rem;
}

.cta-box p {
  color: #cfddf3;
  margin-bottom: 1.2rem;
}

.footer {
  background: #05070c;
  padding: 3rem 0 1.3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.45rem;
  color: #fff;
}

.footer h3 {
  font-size: 1rem;
  margin-bottom: 0.7rem;
}

.footer p,
.footer a {
  color: #aebed7;
}

.footer-links li {
  margin-bottom: 0.45rem;
}

.footer-links a:hover,
.social-links a:hover {
  color: var(--solar-yellow);
}

.social-links {
  display: flex;
  gap: 0.7rem;
}

.social-links a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.footer hr {
  border-color: rgba(255, 255, 255, 0.12);
}

.footer-copy {
  color: #8fa2c0;
  text-align: center;
  font-size: 0.9rem;
}

.whatsapp-float {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  color: #fff;
  background: linear-gradient(135deg, #2ce86e, #0ea94f);
  box-shadow: 0 14px 25px rgba(16, 169, 79, 0.4);
  z-index: 1030;
}

.whatsapp-float svg,
.back-to-top svg {
  width: 1.45rem;
  height: 1.45rem;
  fill: currentColor;
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  color: #fff;
  transform: translateY(-2px);
}

.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 5.3rem;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  background: rgba(9, 16, 29, 0.8);
  color: #fff;
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  z-index: 1028;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover,
.back-to-top:focus-visible {
  border-color: var(--electric-blue);
  color: var(--electric-blue);
}

@media (min-width: 768px) {
  .hero-panel {
    padding: 1.6rem;
  }

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

  .gallery-item img {
    height: 300px;
  }

  .whatsapp-float {
    right: 1.4rem;
    bottom: 1.5rem;
  }

  .back-to-top {
    right: 1.4rem;
    bottom: 6rem;
  }
}

@media (min-width: 992px) {
  .section-space {
    padding: 6rem 0;
  }

  .hero-subtitle {
    font-size: 1.15rem;
  }

  .gallery-item img {
    height: 340px;
  }

  .cta-box {
    padding: 2.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}