*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { overflow-x: hidden; }
img, video { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

:root {
  
  --c-bg:        #0a0a0a;
  --c-bg-alt:    #141414;
  --c-bg-light:  #f5f5f5;
  --c-fg:        #f0f0f0;
  --c-fg-dark:   #0a0a0a;
  --c-muted:     #888888;
  --c-accent:    #00e5ff;
  --c-accent-dk: #00b8cc;
  --c-border:    #2a2a2a;
  --c-border-lt: #dcdcdc;

  --space-1: 0.5rem;   
  --space-2: 1rem;     
  --space-3: 1.5rem;   
  --space-4: 2.5rem;   
  --space-5: 4rem;     
  --space-6: 6rem;     

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

  --font-display: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Inter', 'Helvetica Neue', Arial, sans-serif;

  --shadow-card: 0 4px 24px rgba(0, 229, 255, 0.08), 0 1px 6px rgba(0,0,0,0.4);
  --shadow-btn:  0 2px 12px rgba(0, 229, 255, 0.25);

  --z-base:    0;
  --z-nav:     10;
  --z-overlay: 100;
  --z-modal:   1000;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--c-fg);
  background-color: var(--c-bg);
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: clamp(1rem, 2vw, 1.2rem); }

p  { font-size: clamp(0.95rem, 1.5vw, 1.05rem); color: var(--c-muted); line-height: 1.7; }
.lead { font-size: clamp(1.1rem, 2vw, 1.3rem); color: var(--c-fg); line-height: 1.6; }

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-4);
}
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--space-2);
}
.text-accent { color: var(--c-accent); }
.text-center { text-align: center; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.btn-primary {
  background: var(--c-accent);
  color: var(--c-fg-dark);
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover { background: var(--c-accent-dk); }
.btn-outline {
  border: 1.5px solid var(--c-accent);
  color: var(--c-accent);
  background: transparent;
}
.btn-outline:hover { background: rgba(0,229,255,0.07); }
.btn-dark {
  background: var(--c-fg);
  color: var(--c-fg-dark);
}
.btn-dark:hover { background: var(--c-accent); }

.img-placeholder {
  width: 100%;
  background: var(--c-bg-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--c-border);
  display: block;
  object-fit: cover;
}

.section-dark  { background: var(--c-bg);       padding-block: var(--space-6); }
.section-light { background: var(--c-bg-light);  padding-block: var(--space-6); color: var(--c-fg-dark); }
.section-alt   { background: var(--c-bg-alt);    padding-block: var(--space-6); }

.section-light h1,
.section-light h2,
.section-light h3,
.section-light h4 { color: var(--c-fg-dark); }
.section-light p   { color: #555; }
.section-light .section-label { color: var(--c-accent-dk); }

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  padding-block: var(--space-2);
}
.site-header .container { display: flex; align-items: center; gap: var(--space-2); }
.site-header .logo-img { width: 40px; height: 40px; flex-shrink: 0; }
.site-header .brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--c-fg);
  letter-spacing: -0.01em;
}
.site-header .brand-name span { color: var(--c-accent); }

.hero {
  background: var(--c-bg);
  padding-block: 0;
  min-height: 92vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
}
.hero-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-6) var(--space-4) var(--space-6) calc(var(--space-6) + var(--space-2));
  border-right: 1px solid var(--c-border);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,229,255,0.1);
  border: 1px solid rgba(0,229,255,0.3);
  border-radius: 100px;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--space-3);
  width: fit-content;
}
.hero-badge::before { content: '●'; font-size: 0.5rem; color: var(--c-accent); }
.hero h1 { margin-bottom: var(--space-3); }
.hero-sub { margin-bottom: var(--space-4); max-width: 480px; }
.hero-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; align-items: center; margin-bottom: var(--space-4); }
.hero-stats {
  display: flex;
  gap: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--c-border);
}
.hero-stat-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--c-accent);
  display: block;
}
.hero-stat-lbl { font-size: 0.78rem; color: var(--c-muted); }
.hero-right {
  position: relative;
  overflow: hidden; 
}
.hero-right img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-right-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10,10,10,0.35) 0%, transparent 60%);
  pointer-events: none;
}

.intro .container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-6);
  align-items: center;
}
.intro-heading { position: sticky; top: var(--space-6); }

.features-grid { }
.features-grid .section-header { margin-bottom: var(--space-5); }
.features-grid .grid-3 { gap: var(--space-3); }

.feature-card {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-card);
}
.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
}
.feature-icon svg { width: 24px; height: 24px; }
.feature-card h4 { color: var(--c-fg); margin-bottom: var(--space-1); }
.feature-card p  { font-size: 0.9rem; }

.capabilities .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
}
.capabilities-visual { border-radius: var(--radius-lg); overflow: hidden; }
.capabilities-visual img { width: 100%; 
  height: 100%; object-fit: cover; }
.capability-list { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }
.capability-item {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
}
.capability-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  color: var(--c-accent);
  letter-spacing: 0.1em;
  min-width: 28px;
  padding-top: 2px;
}
.capability-item h4 { color: var(--c-fg-dark); margin-bottom: 2px; }
.capability-item p  { color: #666; font-size: 0.9rem; }

.products .section-header { margin-bottom: var(--space-5); text-align: center; }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.product-card {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}
.product-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.product-card-body {
  padding: var(--space-3);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-tag {
  display: inline-block;
  background: rgba(0,229,255,0.1);
  border: 1px solid rgba(0,229,255,0.25);
  color: var(--c-accent);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 100px;
  padding: 2px 10px;
  margin-bottom: var(--space-1);
}
.product-card h3 { color: var(--c-fg); margin-bottom: var(--space-1); font-size: 1.1rem; }
.product-card p  { font-size: 0.88rem; flex: 1; }
.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--c-border);
}
.product-price {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--c-fg);
}
.product-price span { font-size: 0.75rem; font-weight: 400; color: var(--c-muted); }

.how-it-works .section-header { margin-bottom: var(--space-5); text-align: center; }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: var(--c-border);
  z-index: var(--z-base);
}
.step-card {
  text-align: center;
  padding: var(--space-3);
  position: relative;
  z-index: var(--z-nav);
}
.step-num {
  width: 56px;
  height: 56px;
  background: var(--c-bg);
  border: 2px solid var(--c-accent);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--c-accent);
  margin-bottom: var(--space-2);
}
.step-card h4 { color: var(--c-fg-dark); margin-bottom: var(--space-1); }
.step-card p  { font-size: 0.88rem; color: #666; }

.benefits .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
}
.benefits-image { border-radius: var(--radius-lg); overflow: hidden; }
.benefits-image img { width: 100%; 
  height: 100%; object-fit: cover; }
.benefits-list { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }
.benefit-item {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
}
.benefit-check {
  width: 24px;
  height: 24px;
  background: rgba(0,229,255,0.1);
  border: 1px solid rgba(0,229,255,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--c-accent);
  font-size: 0.75rem;
  font-weight: 700;
}
.benefit-item h4 { color: var(--c-fg); font-size: 1rem; margin-bottom: 2px; }
.benefit-item p  { font-size: 0.88rem; }

.metrics .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-1);
  text-align: center;
}
.metric-item {
  padding: var(--space-4);
  border-right: 1px solid var(--c-border);
}
.metric-item:last-child { border-right: none; }
.metric-val {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--c-fg);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-1);
}
.metric-val .accent { color: var(--c-accent); }
.metric-lbl { font-size: 0.85rem; color: var(--c-muted); }

.testimonials .section-header { margin-bottom: var(--space-5); text-align: center; }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.testimonial-card {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.testimonial-stars { color: var(--c-accent); font-size: 0.9rem; letter-spacing: 2px; }
.testimonial-text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--c-fg);
  flex: 1;
}
.testimonial-author {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  padding-top: var(--space-2);
  border-top: 1px solid var(--c-border);
}
.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--c-border);
  border: 2px solid var(--c-accent);
  flex-shrink: 0;
  object-fit: cover;
}
.testimonial-name { font-weight: 700; font-size: 0.88rem; color: var(--c-fg); }
.testimonial-role { font-size: 0.78rem; color: var(--c-muted); }

.faq .section-header { margin-bottom: var(--space-5); }
.faq .container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-6);
  align-items: start;
}
.faq-aside { position: sticky; top: var(--space-6); }
.faq-aside p { margin-top: var(--space-2); }
.faq-list { display: flex; flex-direction: column; }
.faq-item {
  border-bottom: 1px solid var(--c-border-lt);
  padding-block: var(--space-3);
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--c-fg-dark);
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  gap: var(--space-2);
}
.faq-question-text { flex: 1; }
.faq-icon {
  width: 24px;
  height: 24px;
  background: rgba(0,200,220,0.1);
  border: 1px solid rgba(0,200,220,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--c-accent-dk);
  font-size: 1.1rem;
  font-weight: 400;
}
.faq-answer {
  font-size: 0.92rem;
  color: #555;
  line-height: 1.7;
  padding-top: var(--space-2);
  display: none;
}
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-icon::after { content: '−'; }
.faq-item:not(.open) .faq-icon::after { content: '+'; }

.contacts { }
.contacts .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: start;
}
.contacts-info h2 { margin-bottom: var(--space-2); }
.contacts-info .lead { margin-bottom: var(--space-4); }
.contacts-details { display: flex; flex-direction: column; gap: var(--space-3); }
.contact-row {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
}
.contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--c-accent);
}
.contact-icon svg { width: 18px; height: 18px; }
.contact-label { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-muted); margin-bottom: 2px; }
.contact-val { font-weight: 700; font-size: 0.95rem; color: var(--c-fg); }

.contact-form {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.form-group { display: flex; flex-direction: column; gap: var(--space-1); }
.form-group label { font-size: 0.82rem; font-weight: 700; color: var(--c-muted); letter-spacing: 0.04em; text-transform: uppercase; }
.form-group input,
.form-group textarea,
.form-group select {
  background: var(--c-bg);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 0.7rem 1rem;
  color: var(--c-fg);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  width: 100%;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--c-accent);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--c-muted); }
.form-group textarea { resize: vertical; min-height: 110px; }
.form-group select option { background: var(--c-bg-alt); }

.site-footer {
  background: var(--c-bg);
  border-top: 1px solid var(--c-border);
  padding-block: var(--space-5);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--c-border);
}
.footer-brand .logo-row {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}
.footer-brand .brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--c-fg);
}
.footer-brand .brand-name span { color: var(--c-accent); }
.footer-brand p { font-size: 0.85rem; max-width: 260px; }
.footer-col h5 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-fg);
  margin-bottom: var(--space-2);
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-1); }
.footer-col ul li a {
  font-size: 0.88rem;
  color: var(--c-muted);
}
.footer-col ul li a:hover { color: var(--c-accent); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  font-size: 0.8rem;
  color: var(--c-muted);
}
.footer-legal { display: flex; gap: var(--space-3); }
.footer-legal a { color: var(--c-muted); }
.footer-legal a:hover { color: var(--c-accent); }

.cookie-banner {
  position: fixed;
  bottom: var(--space-3);
  left: var(--space-3);
  right: var(--space-3);
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  display: flex;
  gap: var(--space-3);
  align-items: center;
  justify-content: space-between;
  z-index: var(--z-modal);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
  max-width: 760px;
  margin-inline: auto;
}
.cookie-text { font-size: 0.88rem; color: var(--c-muted); flex: 1; }
.cookie-text a { color: var(--c-accent); }
.cookie-actions { display: flex; gap: var(--space-1); flex-shrink: 0; }
.cookie-hidden { display: none; }

@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-left { padding: var(--space-5) var(--space-4); border-right: none; border-bottom: 1px solid var(--c-border); }
  .hero-right { 
  height: 100%; min-height: 320px; }
  .intro .container { grid-template-columns: 1fr; gap: var(--space-4); }
  .features-grid .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .capabilities .container { grid-template-columns: 1fr; }
  .capabilities-visual { order: -1; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid::before { display: none; }
  .benefits .container { grid-template-columns: 1fr; }
  .benefits-image { order: -1; }
  .benefits-image img { 
  height: 100%; }
  .metrics .container { grid-template-columns: repeat(2, 1fr); }
  .metric-item:nth-child(2) { border-right: none; }
  .metric-item:nth-child(3) { border-right: 1px solid var(--c-border); }
  .metric-item:nth-child(4) { border-right: none; }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .faq .container { grid-template-columns: 1fr; }
  .faq-aside { position: static; margin-bottom: var(--space-3); }
  .contacts .container { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-3); }
  .footer-brand { grid-column: span 2; }
}

@media (max-width: 640px) {
  :root {
    --space-4: 1.5rem;
    --space-5: 2.5rem;
    --space-6: 3.5rem;
  }
  .container { padding-inline: var(--space-2); }
  .hero-stats { gap: var(--space-3); flex-wrap: wrap; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .features-grid .grid-3 { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .steps-grid::before { display: none; }
  .metrics .container { grid-template-columns: 1fr 1fr; }
  .metric-item { border-right: none; border-bottom: 1px solid var(--c-border); }
  .metric-item:last-child { border-bottom: none; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-legal { flex-wrap: wrap; justify-content: center; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
  .cookie-actions { flex-wrap: wrap; }
  .grid-2 { grid-template-columns: 1fr; }
}

@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-right img,
.capabilities-visual img,
.product-card img,
.benefits-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}