:root {
  --c-bg:       #0a0a0f;
  --c-bg-alt:   #111118;
  --c-bg-light: #f4f4f8;
  --c-fg:       #f0f0f5;
  --c-muted:    #8888a0;
  --c-accent:   #00f5c4;
  --c-accent-dim: #00c49a;
  --c-border:   #1e1e2e;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 2rem;
  --space-5: 4rem;
  --space-6: 8rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --font-display: 'Inter', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; background: var(--c-bg); }
body {
  font-family: var(--font-body);
  background: var(--c-bg);
  color: var(--c-fg);
  line-height: 1.6;
  font-size: clamp(0.9rem, 1.5vw, 1rem);
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

h1 { font-family: var(--font-display); font-weight: 900; font-size: clamp(2.4rem, 6vw, 5rem); line-height: 1.05; letter-spacing: -0.03em; }
h2 { font-family: var(--font-display); font-weight: 800; font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1.1; letter-spacing: -0.02em; }
h3 { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.1rem, 2vw, 1.5rem); line-height: 1.2; }
h4 { font-family: var(--font-display); font-weight: 700; font-size: clamp(1rem, 1.5vw, 1.2rem); }
p  { font-weight: 400; color: var(--c-muted); line-height: 1.7; }
strong { font-weight: 700; color: var(--c-fg); }

.container { width: 100%; max-width: 1200px; margin-inline: auto; padding-inline: var(--space-4); }
.accent    { color: var(--c-accent); }
.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  border: 1px solid var(--c-accent);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}
.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--space-3);
  display: block;
}
.img-placeholder {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.img-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--c-accent);
  color: var(--c-bg);
  border-color: var(--c-accent);
}
.btn-primary:hover { background: var(--c-accent-dim); border-color: var(--c-accent-dim); }
.btn-outline {
  background: transparent;
  color: var(--c-fg);
  border-color: var(--c-border);
}
.btn-outline:hover { border-color: var(--c-accent); color: var(--c-accent); }

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  padding-block: var(--space-3);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.brand-logo { width: 40px; height: 40px; flex-shrink: 0; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  color: var(--c-fg);
}
.brand-name span { color: var(--c-accent); }

.hero {
  min-height: 100svh;
  display: flex;
  align-items: stretch;
  padding-top: 72px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 100%;
}
.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-6) var(--space-5) var(--space-6) calc(50vw - 600px + var(--space-4));
  background: var(--c-bg);
}
.hero-visual {
  position: relative;
  overflow: hidden;
}
.hero-visual .img-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 0;
  border: none;
  border-left: 1px solid var(--c-border);
}
.hero-kicker {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--space-3);
}
.hero-title { margin-bottom: var(--space-4); }
.hero-title em { font-style: normal; color: var(--c-accent); }
.hero-desc {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--c-muted);
  max-width: 46ch;
  margin-bottom: var(--space-4);
}
.hero-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: var(--space-5);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--c-border);
}
.stat-num { font-size: 2rem; font-weight: 900; color: var(--c-fg); line-height: 1; }
.stat-label { font-size: 0.8rem; color: var(--c-muted); margin-top: var(--space-1); }

.intro { padding: var(--space-6) 0; background: var(--c-bg-light); }
.intro .container { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); align-items: center; }
.intro-content h2 { color: #0a0a0f; }
.intro-content p { color: #55556a; margin-top: var(--space-3); }
.intro-visual .img-placeholder { height: 380px; }
.intro-visual .img-placeholder img { height: 380px; object-fit: cover; }

.features { padding: var(--space-6) 0; background: var(--c-bg); }
.features-header { text-align: center; margin-bottom: var(--space-5); }
.features-header p { margin-top: var(--space-3); max-width: 55ch; margin-inline: auto; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.feature-card {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
.feature-icon {
  width: 48px; height: 48px;
  background: rgba(0,245,196,0.1);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-3);
}
.feature-icon svg { width: 24px; height: 24px; }
.feature-card h3 { color: var(--c-fg); margin-bottom: var(--space-2); }
.feature-card p  { font-size: 0.9rem; }

.how { padding: var(--space-6) 0; background: var(--c-bg-light); }
.how .container { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); align-items: center; }
.how-steps { display: flex; flex-direction: column; gap: var(--space-4); }
.step { display: flex; gap: var(--space-3); align-items: flex-start; }
.step-num {
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--c-accent);
  border: 1px solid var(--c-accent);
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.step-body h4 { color: #0a0a0f; }
.step-body p  { color: #55556a; font-size: 0.9rem; margin-top: var(--space-1); }
.how-visual .img-placeholder { height: 420px; border-radius: var(--radius-lg); overflow: hidden; }
.how-visual .img-placeholder img { height: 420px; object-fit: cover; }

.capabilities { padding: var(--space-6) 0; background: var(--c-bg); }
.capabilities-header { margin-bottom: var(--space-5); }
.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.cap-item {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-3) var(--space-4);
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
.cap-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--c-accent);
  flex-shrink: 0;
}
.cap-item span { font-size: 0.95rem; font-weight: 600; color: var(--c-fg); }

.products { padding: var(--space-6) 0; background: var(--c-bg-light); }
.products-header { text-align: center; margin-bottom: var(--space-5); }
.products-header h2, .products-header .section-label { color: #0a0a0f; }
.products-header p { color: #55556a; margin-top: var(--space-3); }
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.product-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 32px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
}
.product-card.featured {
  border: 2px solid var(--c-accent);
}
.product-img { height: 200px; overflow: hidden; position: relative; }
.product-img .img-placeholder { height: 200px; border-radius: 0; }
.product-img img { width: 100%; height: 200px; object-fit: cover; }
.product-badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  background: var(--c-accent);
  color: var(--c-bg);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  z-index: 10;
}
.product-body { padding: var(--space-4); flex: 1; display: flex; flex-direction: column; gap: var(--space-2); }
.product-body h3 { color: #0a0a0f; }
.product-body p  { color: #55556a; font-size: 0.88rem; flex: 1; }
.product-price {
  font-size: 1.5rem;
  font-weight: 900;
  color: #0a0a0f;
  margin-top: var(--space-2);
}
.product-price small { font-size: 0.8rem; font-weight: 400; color: #999; }
.product-body .btn { margin-top: var(--space-3); width: 100%; justify-content: center; }

.metrics { padding: var(--space-6) 0; background: var(--c-bg); }
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.metric-card {
  text-align: center;
  padding: var(--space-4);
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
.metric-num  { font-size: clamp(2.2rem, 4vw, 3.5rem); font-weight: 900; color: var(--c-accent); line-height: 1; }
.metric-label { font-size: 0.85rem; color: var(--c-muted); margin-top: var(--space-2); }

.benefits { padding: var(--space-6) 0; background: var(--c-bg-light); }
.benefits-inner { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); align-items: center; }
.benefits-visual .img-placeholder { height: 460px; border-radius: var(--radius-lg); overflow: hidden; }
.benefits-visual .img-placeholder img { height: 460px; object-fit: cover; }
.benefits-content h2 { color: #0a0a0f; }
.benefits-list { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }
.benefit-row {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-3);
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.benefit-icon {
  width: 40px; height: 40px; flex-shrink: 0;
  background: rgba(0,245,196,0.12);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
}
.benefit-icon svg { width: 20px; height: 20px; }
.benefit-row h4 { color: #0a0a0f; margin-bottom: 2px; }
.benefit-row p  { font-size: 0.85rem; color: #55556a; }

.case-study {
  padding: var(--space-6) 0;
  background: var(--c-bg);
}
.case-study-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.case-visual .img-placeholder {
  height: 100%;
  min-height: 420px;
  border-radius: 0;
  border: none;
  border-right: 1px solid var(--c-border);
}
.case-visual .img-placeholder img { min-height: 420px; height: 100%; object-fit: cover; }
.case-content {
  padding: var(--space-5);
  background: var(--c-bg-alt);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-3);
}
.case-content h2 { color: var(--c-fg); }
.case-content p  { color: var(--c-muted); }
.case-result {
  display: flex;
  gap: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--c-border);
}
.case-result-num { font-size: 2rem; font-weight: 900; color: var(--c-accent); line-height: 1; }
.case-result-text { font-size: 0.8rem; color: var(--c-muted); margin-top: 2px; }

.testimonials { padding: var(--space-6) 0; background: var(--c-bg-light); }
.testimonials .section-label { color: var(--c-accent); }
.testimonials-header { text-align: center; margin-bottom: var(--space-5); }
.testimonials-header h2 { color: #0a0a0f; }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.testi-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.testi-quote {
  font-size: 0.95rem;
  color: #2a2a3a;
  line-height: 1.7;
  flex: 1;
}
.testi-quote::before { content: '\201C'; font-size: 1.5rem; color: var(--c-accent); line-height: 0; vertical-align: -0.4em; margin-right: 4px; }
.testi-author { display: flex; align-items: center; gap: var(--space-2); border-top: 1px solid #eee; padding-top: var(--space-3); }
.testi-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(0,245,196,0.15);
  border: 1px solid rgba(0,245,196,0.3);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.9rem; color: var(--c-accent);
  flex-shrink: 0;
}
.testi-name  { font-weight: 700; font-size: 0.9rem; color: #0a0a0f; }
.testi-role  { font-size: 0.78rem; color: #888; }
.stars { color: var(--c-accent); font-size: 0.85rem; letter-spacing: 2px; }

.faq { padding: var(--space-6) 0; background: var(--c-bg); }
.faq-inner { display: grid; grid-template-columns: 1fr 2fr; gap: var(--space-6); align-items: start; }
.faq-list { display: flex; flex-direction: column; gap: var(--space-3); }
.faq-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  background: var(--c-bg-alt);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--c-fg);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  text-align: left;
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}
.faq-arrow { color: var(--c-accent); font-size: 1.2rem; flex-shrink: 0; }
.faq-answer {
  display: none;
  padding: 0 var(--space-4) var(--space-3);
  font-size: 0.9rem;
  color: var(--c-muted);
  line-height: 1.7;
}
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-arrow { transform: rotate(45deg); }

.contacts { padding: var(--space-6) 0; background: var(--c-bg-light); }
.contacts-inner { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); align-items: start; }
.contacts-info h2 { color: #0a0a0f; }
.contacts-info p  { color: #55556a; margin-top: var(--space-3); }
.contact-details { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }
.contact-row { display: flex; gap: var(--space-3); align-items: flex-start; }
.contact-icon {
  width: 40px; height: 40px; flex-shrink: 0;
  background: rgba(0,245,196,0.12);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
}
.contact-icon svg { width: 20px; height: 20px; }
.contact-row h4 { color: #0a0a0f; font-size: 0.85rem; font-weight: 600; }
.contact-row p  { color: #55556a; font-size: 0.9rem; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: #fff;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 32px rgba(0,0,0,0.08);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.form-group { display: flex; flex-direction: column; gap: var(--space-1); }
.form-group label { font-size: 0.82rem; font-weight: 600; color: #2a2a3a; }
.form-group input,
.form-group textarea,
.form-group select {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: #0a0a0f;
  background: #f8f8fc;
  border: 1.5px solid #e0e0ee;
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--c-accent); }
.form-group textarea { resize: vertical; min-height: 100px; }
.contact-form .btn { justify-content: center; }

.site-footer {
  background: var(--c-bg);
  border-top: 1px solid var(--c-border);
  padding: var(--space-5) 0 var(--space-4);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--c-border);
}
.footer-brand p { color: var(--c-muted); font-size: 0.9rem; margin-top: var(--space-2); max-width: 32ch; }
.footer-col h4 { color: var(--c-fg); font-size: 0.85rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: var(--space-3); }
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-col ul li a { color: var(--c-muted); font-size: 0.88rem; }
.footer-col ul li a:hover { color: var(--c-accent); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-4);
  gap: var(--space-3);
  flex-wrap: wrap;
}
.footer-copy { color: var(--c-muted); font-size: 0.82rem; }
.footer-legal { display: flex; gap: var(--space-3); }
.footer-legal a { color: var(--c-muted); font-size: 0.82rem; }
.footer-legal a:hover { color: var(--c-accent); }

.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--c-bg-alt);
  border-top: 1px solid var(--c-border);
  padding: var(--space-3) 0;
  display: none;
}
.cookie-banner.visible { display: block; }
.cookie-banner .container {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.cookie-banner p { color: var(--c-muted); font-size: 0.85rem; flex: 1; min-width: 200px; }
.cookie-banner p a { color: var(--c-accent); text-decoration: underline; }
.cookie-actions { display: flex; gap: var(--space-2); flex-shrink: 0; }
.cookie-actions .btn { padding: var(--space-2) var(--space-3); font-size: 0.82rem; }

@media (min-width: 641px) and (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-content { padding: var(--space-5) var(--space-4); }
  .hero-visual { min-height: 400px; }
  .intro .container { grid-template-columns: 1fr; }
  .intro-visual .img-placeholder { height: 280px; }
  .intro-visual .img-placeholder img { height: 280px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .how .container { grid-template-columns: 1fr; }
  .how-visual { display: none; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits-inner { grid-template-columns: 1fr; }
  .benefits-visual { display: none; }
  .case-study-inner { grid-template-columns: 1fr; }
  .case-visual { display: none; }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-inner { grid-template-columns: 1fr; }
  .contacts-inner { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-4); }
  .cap-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  :root {
    --space-5: 3rem;
    --space-6: 4rem;
  }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-content { padding: var(--space-5) var(--space-3); }
  .hero-visual { min-height: 280px; }
  .hero-visual .img-placeholder { min-height: 280px; }
  .hero-stats { flex-direction: column; gap: var(--space-3); }
  .intro .container { grid-template-columns: 1fr; }
  .intro-visual .img-placeholder { height: 220px; }
  .intro-visual .img-placeholder img { height: 220px; }
  .features-grid { grid-template-columns: 1fr; }
  .how .container { grid-template-columns: 1fr; }
  .how-visual { display: none; }
  .products-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits-inner { grid-template-columns: 1fr; }
  .benefits-visual { display: none; }
  .case-study-inner { grid-template-columns: 1fr; }
  .case-visual { display: none; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .faq-inner { grid-template-columns: 1fr; }
  .contacts-inner { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: var(--space-4); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .cap-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .case-result { flex-direction: column; gap: var(--space-2); }
}

@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; }
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, [tabindex]:focus-visible { outline: 2px solid currentColor; outline-offset: 2px; }

.hero-visual img,
.how-visual img,
.product-img img,
.benefits-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}