:root {
  --c-bg: #f2f6ff;
  --c-surface: #ffffff;
  --c-border: #d5deef;
  --c-text: #111827;
  --c-muted: #51607a;
  --c-primary: #3a7cec;
  --c-primary-dark: #2e6ad9;
  --c-teal: #20bdae;
  --c-shadow: 0 18px 50px rgba(20, 37, 71, 0.11);
}

[data-theme='dark'] {
  --c-bg: #0b1220;
  --c-surface: #0f172a;
  --c-border: #263042;
  --c-text: #e5e7eb;
  --c-muted: #9faecc;
  --c-primary: #62a1ff;
  --c-primary-dark: #4a8dea;
  --c-teal: #3adbcf;
  --c-shadow: 0 20px 52px rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--c-text);
  background:
    radial-gradient(circle at top right, rgba(58, 124, 236, 0.23), transparent 35%),
    radial-gradient(circle at bottom left, rgba(32, 189, 174, 0.22), transparent 34%),
    var(--c-bg);
  font-family: 'Manrope', sans-serif;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 4vw;
  border-bottom: 1px solid var(--c-border);
  backdrop-filter: blur(12px);
  background: color-mix(in oklab, var(--c-bg), transparent 35%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--c-text);
  text-decoration: none;
}

.brand-logo {
  display: block;
  height: 2rem;
  width: auto;
  object-fit: contain;
}

.brand-logo-dark {
  display: none;
}

[data-theme='dark'] .brand-logo-light {
  display: none;
}

[data-theme='dark'] .brand-logo-dark {
  display: block;
}

.brand-text {
  line-height: 1;
}

.nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav a,
footer a {
  color: var(--c-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav a:hover,
footer a:hover {
  color: var(--c-primary);
}

.controls {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.lang-switch,
.theme-toggle {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 999px;
}

.lang-switch button,
.theme-toggle {
  color: var(--c-text);
  cursor: pointer;
}

.lang-switch {
  display: inline-flex;
  overflow: hidden;
}

.lang-switch button {
  border: none;
  background: transparent;
  padding: 0.45rem 0.65rem;
  font: inherit;
}

.lang-switch button.active {
  background: var(--c-primary);
  color: #fff;
}

.theme-toggle {
  width: 2.1rem;
  height: 2.1rem;
}

main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 1.5rem 4vw 4rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 1.6rem;
  align-items: center;
  min-height: 74vh;
  animation: slide-up 0.8s ease;
}

.hero-copy h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  margin: 0.2rem 0 0.9rem;
}

.kicker {
  color: var(--c-teal);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.82rem;
  margin: 0;
}

.hero-copy p {
  color: var(--c-muted);
  line-height: 1.55;
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  gap: 0.7rem;
  margin-top: 1.3rem;
}

.btn {
  border-radius: 0.8rem;
  border: 1px solid transparent;
  padding: 0.7rem 1rem;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}

.btn.primary {
  background: linear-gradient(135deg, var(--c-primary), var(--c-teal));
  color: #fff;
}

.btn.primary:hover {
  filter: brightness(1.05);
}

.btn.ghost {
  border-color: var(--c-border);
  color: var(--c-text);
}

.hero-media img {
  width: 100%;
  border-radius: 1.3rem;
  border: 1px solid var(--c-border);
  box-shadow: var(--c-shadow);
}

.section {
  margin-top: 3.4rem;
  animation: slide-up 0.75s ease;
}

.section-heading h2 {
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  margin-bottom: 0.4rem;
}

.section-heading p {
  margin-top: 0;
  color: var(--c-muted);
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.app-card,
.service-cards article,
.stat-boxes div,
.contact-form,
.logo-wall img {
  background: linear-gradient(180deg, color-mix(in oklab, var(--c-surface), #fff 10%), var(--c-surface));
  border: 1px solid var(--c-border);
  box-shadow: var(--c-shadow);
}

.app-card {
  border-radius: 1rem;
  overflow: hidden;
}

.app-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

.app-card .content {
  padding: 0.8rem 1rem 1rem;
}

.app-card h3 {
  margin: 0;
  font-size: 1rem;
}

.app-card p {
  margin: 0.45rem 0 0;
  color: var(--c-muted);
  font-size: 0.93rem;
}

.app-link {
  margin-top: 0.7rem;
  display: inline-block;
  border-radius: 0.65rem;
  border: 1px solid var(--c-border);
  padding: 0.45rem 0.7rem;
  text-decoration: none;
  color: var(--c-text);
  font-weight: 700;
  font-size: 0.86rem;
}

.app-link:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.logo-wall {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.7rem;
  margin-top: 1rem;
}

.logo-wall img {
  width: 100%;
  border-radius: 0.8rem;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.service-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.service-cards article {
  border-radius: 1rem;
  padding: 1rem;
}

.service-cards h3 {
  margin: 0.2rem 0;
  font-size: 1.02rem;
}

.service-cards p {
  margin: 0;
  color: var(--c-muted);
}

.split {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 1rem;
}

.stat-boxes {
  display: grid;
  gap: 0.8rem;
}

.stat-boxes div {
  border-radius: 1rem;
  padding: 1rem;
}

.stat-boxes strong {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 0.3rem;
}

.contact-form {
  border-radius: 1rem;
  padding: 1rem;
  display: grid;
  gap: 0.8rem;
  max-width: 690px;
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
}

.contact-form span {
  font-size: 0.92rem;
  color: var(--c-muted);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--c-border);
  border-radius: 0.75rem;
  padding: 0.65rem;
  background: var(--c-surface);
  color: var(--c-text);
  font: inherit;
}

footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--c-border);
  color: var(--c-muted);
  padding: 1rem 4vw;
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .apps-grid,
  .service-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .logo-wall {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .topbar {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav {
    justify-content: center;
  }

  .apps-grid,
  .service-cards,
  .logo-wall {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  footer {
    flex-direction: column;
    gap: 0.5rem;
  }
}