:root {
  --bg-main: #ffffff;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-soft: #475569;
  --accent: #ee6c00;
  --accent-2: #ff8a1f;
  --border: rgba(15, 23, 42, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  color: var(--text-main);
  background: #ffffff;
}

.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(30, 41, 59, 0.1);
}

.nav-link {
  color: #334155;
  transition: color 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
}

.text-accent {
  color: var(--accent);
  font-weight: 600;
}

.text-light-soft {
  color: var(--text-soft);
}

.py-lg-6 {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.section-dark {
  background: #fffaf4;
}

.btn-primary {
  border: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.btn-glow {
  box-shadow: 0 0 0 rgba(255, 138, 0, 0.4);
  transition: transform 0.2s ease, box-shadow 0.25s ease;
}

.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(238, 108, 0, 0.35);
}

.card {
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--bg-card);
  color: var(--text-main);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.glass-card,
.feature-card,
.glow-card,
.case-card,
.form-card {
  padding: 1.2rem;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.glass-card:hover,
.feature-card:hover,
.glow-card:hover,
.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(238, 108, 0, 0.7);
  box-shadow: 0 16px 30px rgba(238, 108, 0, 0.22);
}

.hero-diagram {
  position: relative;
  min-height: 360px;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: #ffffff;
  overflow: hidden;
}

.diagram-center,
.node {
  position: absolute;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid rgba(245, 130, 32, 0.5);
  background: #ffffff;
}

.diagram-center {
  width: 120px;
  height: 120px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 24px rgba(255, 138, 0, 0.2);
}

.node {
  width: 110px;
  height: 52px;
  animation: pulse 2.8s infinite ease-in-out;
}

.node-1 { top: 12%; left: 10%; }
.node-2 { top: 15%; right: 9%; }
.node-3 { top: 52%; right: 3%; }
.node-4 { bottom: 11%; right: 18%; }
.node-5 { bottom: 14%; left: 11%; }

.price-card {
  padding: 1.4rem;
}

.price-card.featured {
  border-color: rgba(238, 108, 0, 0.85);
  box-shadow: 0 18px 36px rgba(238, 108, 0, 0.28);
}

.price {
  font-size: 1.6rem;
  font-weight: 700;
}

.price span {
  font-size: 0.95rem;
  color: var(--text-soft);
  font-weight: 400;
}

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.equipment-grid span {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.18);
  border-radius: 0.8rem;
  padding: 0.85rem 1rem;
  transition: border-color 0.2s ease;
}

.equipment-grid span:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 18px rgba(238, 108, 0, 0.16);
}

.timeline {
  display: grid;
  gap: 0.8rem;
}

.timeline-item {
  padding: 0.9rem 1rem;
  border-radius: 0.8rem;
  border: 1px solid rgba(15, 23, 42, 0.18);
  background: #ffffff;
}

.seo-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.seo-links a {
  color: #374151;
  text-decoration: none;
  border: 1px solid rgba(15, 23, 42, 0.2);
  background: #ffffff;
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  transition: all 0.2s ease;
}

.seo-links a:hover {
  color: #ffffff;
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 10px 20px rgba(238, 108, 0, 0.22);
}

.form-control {
  border: 1px solid rgba(15, 23, 42, 0.22);
  color: var(--text-main);
  background: #ffffff;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 0.2rem rgba(238, 108, 0, 0.2);
  background: #ffffff;
  color: var(--text-main);
}

.site-footer {
  background: #ffffff;
  border-top: 1px solid rgba(30, 41, 59, 0.12);
}

.site-footer a {
  color: #b45309;
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 138, 0, 0.1); }
  50% { box-shadow: 0 0 0 10px rgba(255, 138, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 138, 0, 0); }
}

@media (max-width: 991.98px) {
  .hero-diagram {
    min-height: 300px;
  }

  .node {
    width: 95px;
    height: 48px;
    font-size: 0.86rem;
  }
}