:root {
  --color-primary: #14b8a6;
  --color-primary-dark: #0f766e;
  --color-primary-soft: rgba(20, 184, 166, 0.12);
  --color-bg: #050816;
  --color-surface: #070b1f;
  --color-surface-alt: #0b1028;
  --color-border: #1f2937;
  --color-text: #f9fafb;
  --color-text-muted: #9ca3af;
  --color-accent: #e11d48;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.65);
  --radius-lg: 18px;
  --radius-full: 999px;
  --transition-fast: 0.2s ease-out;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #0b1220 0, #020617 45%, #000 100%);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(2, 6, 23, 0.92), rgba(2, 6, 23, 0.72));
  border-bottom: 1px solid rgba(15, 23, 42, 0.9);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: conic-gradient(from 180deg, #22c55e, #22d3ee, #f97316, #22c55e);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 0 0 2px rgba(15, 23, 42, 0.9), 0 18px 45px rgba(0, 0, 0, 0.6);
}

.logo-text {
  font-weight: 500;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0;
  margin: 0;
}

.nav-links a {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  padding-bottom: 0.25rem;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.nav-links a:hover {
  color: #e5e7eb;
}

.nav-links a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid rgba(55, 65, 81, 0.8);
  background: radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.3), rgba(15, 23, 42, 0.98));
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: #e5e7eb;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(3px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-3px) rotate(-45deg);
}

main {
  padding-bottom: 4rem;
}

.hero {
  padding: 3.5rem 0 2.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 4vw, 3.1rem);
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.hero-text h1 span {
  color: var(--color-primary);
}

.hero-text p {
  color: var(--color-text-muted);
  font-size: 1rem;
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #22c55e);
  color: #020617;
  box-shadow: 0 18px 40px rgba(16, 185, 129, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 55px rgba(16, 185, 129, 0.5);
}

.btn-outline {
  border-color: rgba(148, 163, 184, 0.7);
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.9);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: rgba(15, 23, 42, 0.98);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.hero-badges span {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  padding: 0.3rem 0.75rem;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(55, 65, 81, 0.8);
  color: var(--color-text-muted);
}

.hero-media {
  position: relative;
}

.hero-media > img {
  border-radius: 26px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: var(--shadow-soft);
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.25), rgba(15, 23, 42, 0.95));
  object-fit: cover;
  max-height: 420px;
}

.hero-card {
  position: absolute;
  right: -1rem;
  bottom: 1.5rem;
  background: radial-gradient(circle at top left, rgba(34, 197, 94, 0.2), rgba(15, 23, 42, 0.97));
  border-radius: 18px;
  padding: 0.9rem 1rem;
  max-width: 260px;
  border: 1px solid rgba(34, 197, 94, 0.5);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.75);
}

.hero-card h2 {
  font-size: 1rem;
  margin: 0 0 0.25rem;
}

.hero-card p {
  font-size: 0.85rem;
  margin: 0;
  color: var(--color-text-muted);
}

.section {
  padding: 3rem 0;
}

.section-alt {
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.98), rgba(2, 6, 23, 0.98));
  border-top: 1px solid rgba(15, 23, 42, 0.8);
  border-bottom: 1px solid rgba(15, 23, 42, 0.9);
}

.section-header {
  text-align: left;
  max-width: 40rem;
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--color-text-muted);
  margin: 0;
}

.grid {
  display: grid;
  gap: 1.75rem;
}

.products-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.products-page-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.news-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.98));
  border-radius: var(--radius-lg);
  border: 1px solid rgba(31, 41, 55, 0.95);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
  overflow: hidden;
  position: relative;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.15), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.card:hover::before {
  opacity: 1;
}

.card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
}

.card-body {
  padding: 1.1rem 1.2rem 1.2rem;
}

.card-body h3 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
}

.card-body p {
  margin: 0.2rem 0 0.5rem;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.card-link {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.card-link::after {
  content: "→";
  font-size: 0.9rem;
}

.product-card ul {
  list-style: disc;
  padding-left: 1.2rem;
  margin: 0.3rem 0 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.product-specs {
  list-style: none;
  padding-left: 0;
}

.product-specs li::before {
  content: "• ";
  color: var(--color-primary);
  margin-right: 0.15rem;
}

.product-note {
  font-size: 0.86rem;
  color: var(--color-text-muted);
}

.benefits-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: start;
}

.benefits-list {
  display: grid;
  gap: 1rem;
}

.benefit-item h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.benefit-item p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.6);
}

.cta-section {
  padding: 2.5rem 0 3.5rem;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.16), rgba(15, 23, 42, 0.98));
  border-radius: 24px;
  border: 1px solid rgba(37, 99, 235, 0.55);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.9);
  padding: 1.8rem 2rem;
}

.cta-inner h2 {
  margin-top: 0;
  margin-bottom: 0.4rem;
}

.cta-inner p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.page-hero {
  padding: 3rem 0 1rem;
}

.page-hero h1 {
  font-size: 2rem;
  margin-bottom: 0.7rem;
}

.page-hero p {
  max-width: 40rem;
  color: var(--color-text-muted);
  margin: 0;
}

.filter-bar {
  margin-bottom: 1.5rem;
}

.filter-bar h2 {
  margin: 0 0 0.75rem;
  font-size: 1.2rem;
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-btn {
  border-radius: var(--radius-full);
  border: 1px solid rgba(55, 65, 81, 0.9);
  background: rgba(15, 23, 42, 0.96);
  color: var(--color-text-muted);
  padding: 0.35rem 0.9rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.filter-btn:hover {
  border-color: rgba(148, 163, 184, 0.9);
}

.filter-btn.active {
  background: var(--color-primary-soft);
  color: #e5e7eb;
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.about-media img {
  border-radius: 22px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: var(--shadow-soft);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.team-card img {
  height: 190px;
  object-fit: cover;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: flex-start;
}

.contact-form {
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.14), rgba(15, 23, 42, 0.98));
  padding: 1.5rem 1.6rem;
  border-radius: 20px;
  border: 1px solid rgba(37, 99, 235, 0.6);
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.95);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  color: var(--color-text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(51, 65, 85, 0.95);
  background: rgba(15, 23, 42, 0.96);
  color: var(--color-text);
  padding: 0.55rem 0.7rem;
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(148, 163, 184, 0.65);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.6);
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  border-radius: 4px;
}

.form-feedback {
  font-size: 0.86rem;
  margin-top: 0.5rem;
  min-height: 1.2em;
}

.form-feedback.success {
  color: #4ade80;
}

.form-feedback.error {
  color: #f97316;
}

.contact-info {
  font-size: 0.95rem;
}

.info-block {
  margin-top: 1.1rem;
}

.info-block h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.info-block p {
  margin: 0;
  color: var(--color-text-muted);
}

.info-block img {
  margin-top: 0.6rem;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: var(--shadow-soft);
}

.footer {
  border-top: 1px solid rgba(30, 64, 175, 0.7);
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.98), #020617);
  padding: 1.6rem 0 1.8rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  align-items: center;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  justify-content: center;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.footer-links a {
  color: var(--color-text-muted);
}

.footer-links a:hover {
  color: #e5e7eb;
}

.footer-copy {
  margin: 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.seo-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-media {
    order: -1;
  }

  .benefits-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .topbar-inner {
    padding: 0.75rem 0;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.4rem;
    padding: 0.7rem 1rem;
    background: rgba(15, 23, 42, 0.98);
    border-radius: 999px;
    border: 1px solid rgba(31, 41, 55, 0.95);
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.75);
    gap: 0.6rem;
    transform-origin: top right;
    transform: scale(0.85);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
  }

  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
    transform: scale(1);
  }
}

@media (max-width: 600px) {
  .hero {
    padding-top: 2.2rem;
  }

  .cta-inner {
    padding: 1.4rem 1.3rem;
  }

  .card img,
  .team-card img {
    height: 170px;
  }
}