:root {
  --bg: #060b16;
  --bg-soft: #0d1527;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.1);
  --text: #f5f7ff;
  --muted: #a8b4c9;
  --accent: #4cc9f0;
  --accent-2: #7b61ff;
  --accent-3: #2ec4b6;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
  --glow-a: rgba(76, 201, 240, 0.22);
  --glow-b: rgba(123, 97, 255, 0.2);
  --glow-c: rgba(46, 196, 182, 0.16);
  --glow-spot-1: rgba(76, 201, 240, 0.35);
  --glow-spot-2: rgba(123, 97, 255, 0.28);
}

body[data-theme="light"] {
  --bg: #f4f7ff;
  --bg-soft: #eef3ff;
  --panel: rgba(15, 23, 42, 0.04);
  --panel-strong: rgba(15, 23, 42, 0.08);
  --text: #0f172a;
  --muted: #475569;
  --accent: #2563eb;
  --accent-2: #7c3aed;
  --accent-3: #0f766e;
  --border: rgba(15, 23, 42, 0.12);
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
  --glow-a: rgba(37, 99, 235, 0.16);
  --glow-b: rgba(124, 58, 237, 0.14);
  --glow-c: rgba(15, 118, 110, 0.12);
  --glow-spot-1: rgba(37, 99, 235, 0.18);
  --glow-spot-2: rgba(124, 58, 237, 0.16);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  background:
    radial-gradient(circle at 15% 20%, var(--glow-a), transparent 24%),
    radial-gradient(circle at 85% 15%, var(--glow-b), transparent 28%),
    radial-gradient(circle at 50% 100%, var(--glow-c), transparent 24%),
    linear-gradient(135deg, var(--bg) 0%, var(--bg-soft) 45%, var(--bg) 100%);
  background-size: 200% 200%;
  animation: backgroundShift 18s ease infinite;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  pointer-events: none;
  z-index: -1;
  animation: floatGlow 10s ease-in-out infinite alternate;
}

.card:hover,
.contact-box:hover,
.logo-slot:hover,
.banner-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.24);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

body::before {
  top: -80px;
  left: -80px;
  background: var(--glow-spot-1);
}

body::after {
  right: -90px;
  bottom: 40px;
  background: var(--glow-spot-2);
  animation-duration: 12s;
}

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

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

.container {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(6, 11, 22, 0.84);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.7rem 0 0.3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

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

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.2rem 0 1rem;
}

.brand {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.2rem;
  color: var(--muted);
}

.nav-links a {
  transition: color 0.2s ease, transform 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
  transform: translateY(-1px);
}

.nav-link {
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
}

.nav-link:hover,
.nav-link.active {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-right: 0.3rem;
}

.lang-link {
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.lang-link.active,
.lang-link:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.05);
  color: var(--text);
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  transition: transform 0.2s ease, background 0.2s ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,0.08);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  background: transparent;
  border: 0;
  padding: 0.3rem;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 999px;
}

.brand-banner {
  padding: 1rem 0 0;
}

.brand-panel {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 1rem;
  align-items: stretch;
}

.logo-slot,
.banner-card {
  padding: 1.2rem 1.25rem;
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(255,255,255,0.1), rgba(255,255,255,0.04));
  border: 1px solid var(--border);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

.logo-slot {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-weight: 800;
  font-size: 1.4rem;
  color: white;
}

.logo-slot strong {
  display: block;
  font-size: 1.05rem;
}

.logo-slot p {
  color: var(--muted);
  font-size: 0.95rem;
}

.banner-card h2 {
  font-size: 1.28rem;
  margin-bottom: 0.45rem;
}

.banner-card p {
  color: var(--muted);
}

.hero {
  padding: 5.2rem 0 4rem;
  display: grid;
  gap: 2rem;
  align-items: center;
  grid-template-columns: 1.05fr 0.95fr;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.48rem 0.85rem;
  border-radius: 999px;
  background: rgba(76, 201, 240, 0.12);
  color: var(--accent);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  border: 1px solid rgba(76, 201, 240, 0.2);
}

.hero h1 {
  font-size: clamp(2.3rem, 4.6vw, 3.7rem);
  line-height: 1.1;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

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

.hero p {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 660px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.95rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: 0 12px 30px rgba(76, 201, 240, 0.2);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
}

.hero-card {
  position: relative;
  padding: 1.4rem;
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(255,255,255,0.1), rgba(255,255,255,0.04));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(76, 201, 240, 0.18), transparent 48%, rgba(123, 97, 255, 0.16));
  pointer-events: none;
}

.hero-card-content {
  position: relative;
  z-index: 1;
}

.hero-card h3 {
  margin-bottom: 0.9rem;
  font-size: 1.15rem;
}

.hero-card ul {
  list-style: none;
  display: grid;
  gap: 0.8rem;
}

.hero-card li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--muted);
}

.hero-card li::before {
  content: "✦";
  color: var(--accent);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.2rem 0 3.5rem;
}

.stat {
  padding: 1.1rem 1rem;
  border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}

.stat strong {
  display: block;
  font-size: 1.25rem;
  color: var(--accent);
}

section {
  padding: 2rem 0 3rem;
}

.section-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.section-title h2 {
  font-size: 1.5rem;
}

.section-title p {
  color: var(--muted);
}

.seo-block {
  margin-bottom: 1rem;
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.services {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.card {
  padding: 1.25rem;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--muted);
}

.about {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 1.2rem;
  align-items: center;
}

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

.contact-box {
  padding: 1.4rem;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(76, 201, 240, 0.16), rgba(123, 97, 255, 0.16));
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
}

.contact-box h2 {
  margin-bottom: 0.6rem;
}

.logo-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.2rem;
  margin: 1rem 0 0.5rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
}

.logo-pill {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(76, 201, 240, 0.12);
  color: var(--text);
  font-size: 0.95rem;
}

.contact-shell {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1rem;
  align-items: start;
}

.contact-panel {
  padding: 0.2rem 0.2rem 0.2rem 0;
}

.contact-list {
  list-style: none;
  display: grid;
  gap: 0.6rem;
  margin: 0.7rem 0 1rem;
  color: var(--muted);
}

.contact-list li::before {
  content: "•";
  color: var(--accent);
  margin-right: 0.5rem;
}

.contact-form {
  display: grid;
  gap: 0.7rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.8rem 0.95rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font: inherit;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--muted);
}

.contact-form button {
  border: 0;
  cursor: pointer;
}

.testimonial {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.testimonial p {
  font-style: italic;
}

.testimonial strong {
  color: var(--accent);
}

footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.blog-hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1rem;
  align-items: start;
}

.blog-hero h1 {
  font-size: clamp(2rem, 3.4vw, 2.8rem);
  margin: 0.5rem 0 1rem;
  line-height: 1.15;
}

.blog-intro {
  color: var(--muted);
  max-width: 760px;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.blog-card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.blog-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  background: rgba(76, 201, 240, 0.12);
  color: var(--accent);
  font-weight: 600;
}

.blog-side {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.blog-list {
  list-style: none;
  display: grid;
  gap: 0.55rem;
  color: var(--muted);
}

.blog-list li::before {
  content: "•";
  color: var(--accent);
  margin-right: 0.5rem;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@keyframes backgroundShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes floatGlow {
  from {
    transform: translateY(0px) scale(1);
  }
  to {
    transform: translateY(20px) scale(1.05);
  }
}

@media (max-width: 860px) {
  .hero,
  .about,
  .services,
  .seo-grid {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .contact-shell {
    grid-template-columns: 1fr;
  }

  .logo-strip {
    border-radius: 20px;
  }

  .blog-hero,
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    flex-wrap: wrap;
    gap: 0.7rem;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    gap: 0.7rem;
    width: 100%;
    padding: 0.4rem 0 0.2rem;
  }

  .nav-links.is-open {
    display: flex;
  }

  .hero {
    padding-top: 3.2rem;
  }

  .section-title {
    flex-direction: column;
    align-items: flex-start;
  }
}