:root {
  --koda-dark: #000b20;
  --koda-dark-blue: #003eb7;
  --koda-blue: #68aeff;
  --koda-light-blue: #33aaff;
  --koda-editor-bg: #000014;
  --koda-text: #ffffff;
  --koda-text-secondary: #aaaaaa;
  --koda-divider: #004488;
  --card-bg: #001533;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--koda-text);
  background: radial-gradient(circle at 15% 10%, #001b4b 0%, var(--koda-dark) 40%),
    var(--koda-editor-bg);
}

body {
  position: relative;
  line-height: 1.6;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 4vw;
  background: rgba(0, 11, 32, 0.75);
  border-bottom: 1px solid rgba(104, 174, 255, 0.2);
  backdrop-filter: blur(8px);
}

.topbar-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
}

.logo {
  display: inline-flex;
  gap: 0.55rem;
  align-items: center;
  text-decoration: none;
  color: var(--koda-text);
  font-size: 1.8rem;
  font-weight: 700;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  letter-spacing: 0.4px;
}


.logo-mark {
  font-size: 1.55rem;
  transform: translateY(-0.08em);
}

.topbar nav {
  display: flex;
  gap: 1.1rem;
}

.topbar nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--koda-text-secondary);
  font-weight: 500;
}

.topbar nav a:hover {
  color: var(--koda-light-blue);
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: center;
  padding: 3rem 0;
}

.eyebrow {
  color: var(--koda-blue);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 0.65rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.hero-koda {
  color: var(--koda-blue);
}

.hero-copy p {
  color: var(--koda-text-secondary);
  font-size: 1.08rem;
  max-width: 60ch;
}

.menu-toggle {
  display: none;
  border: 1px solid rgba(104, 174, 255, 0.35);
  background: rgba(0, 62, 183, 0.22);
  color: var(--koda-text);
  border-radius: 0.55rem;
  height: 2rem;
  min-width: 2rem;
  padding: 0.35rem 0.55rem;
  align-items: center;
  justify-content: center;;
  cursor: pointer;
}

.lang-selector {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--koda-text-secondary);
}

.lang-selector select {
  background: rgba(0, 62, 183, 0.22);
  border: 1px solid rgba(104, 174, 255, 0.35);
  color: var(--koda-text);
  border-radius: 0.45rem;
  height: 2rem;
  font: inherit;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding: 0px 35px 0px 10px;
  background-image: url('data:image/svg+xml;utf8,<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M6 9L12 15L18 9" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" stroke="white"/></svg>');
  background-repeat: no-repeat;
  background-position: right 5px center;
  cursor: pointer;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border-radius: 999px;
  padding: 0.7rem 1.15rem;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--koda-dark-blue);
  color: var(--koda-text);
  box-shadow: 0 0 0 1px rgba(104, 174, 255, 0.2) inset;
}

.btn-secondary {
  background: transparent;
  color: var(--koda-blue);
  border: 1px solid var(--koda-divider);
}

.phone {
  margin: 0;
  background: linear-gradient(180deg, rgba(104, 174, 255, 0.18), rgba(0, 11, 32, 0));
  border: 1px solid rgba(104, 174, 255, 0.3);
  border-radius: 1.5rem;
  padding: 1rem;
}

.phone img {
  width: 100%;
  border-radius: 1rem;
  display: block;
}

.phone figcaption {
  color: var(--koda-text-secondary);
  margin-top: 0.65rem;
  font-size: 0.9rem;
  text-align: center;
}

.section {
  padding: 2rem 0 2.8rem;
}

.section-title {
  font-size: 1.7rem;
  margin-bottom: 1rem;
}

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

.card {
  background: linear-gradient(160deg, rgba(0, 62, 183, 0.16), rgba(0, 21, 51, 0.85));
  border: 1px solid rgba(104, 174, 255, 0.22);
  border-radius: 1rem;
  padding: 1rem;
}

.card h3 {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0;
  color: var(--koda-blue);
}

.card p {
  margin-bottom: 0;
  color: var(--koda-text-secondary);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.chip-row span {
  border: 1px solid rgba(104, 174, 255, 0.25);
  background: rgba(0, 62, 183, 0.2);
  color: var(--koda-blue);
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  font-size: 0.9rem;
}

.split {
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.split a {
  color: var(--koda-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(104, 174, 255, 0.28);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.split a:hover {
  color: var(--koda-light-blue);
  border-color: rgba(51, 170, 255, 0.65);
}

pre {
  margin: 0;
  background: #000a1a;
  border: 1px solid rgba(104, 174, 255, 0.2);
  border-radius: 0.75rem;
  padding: 0.85rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

pre code {
  white-space: inherit;
}

.footer {
  padding: 2rem 0 2.4rem;
  color: var(--koda-text-secondary);
  border-top: 1px solid rgba(104, 174, 255, 0.17);
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.footer-links {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--koda-blue);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--koda-light-blue);
}

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

.tech-card {
  background: linear-gradient(170deg, rgba(0, 62, 183, 0.17), rgba(0, 21, 51, 0.86));
  border: 1px solid rgba(104, 174, 255, 0.2);
  border-radius: 1rem;
  padding: 1rem;
}

.tech-card i {
  color: var(--koda-light-blue);
  font-size: 1.1rem;
}

.tech-card h3 {
  margin: 0.55rem 0 0.35rem;
  color: var(--koda-blue);
}

.tech-card p {
  margin: 0;
  color: var(--koda-text-secondary);
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .topbar nav {
    gap: 0.8rem;
  }

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

  .hero {
    min-height: auto;
    padding-top: 2.2rem;
    gap: 1.3rem;
  }

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

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

@media (max-width: 640px) {
  .topbar {
    flex-wrap: nowrap;
    gap: 0.5rem;
    align-items: center;
    padding: 0.75rem 1rem;
  }

  .topbar-actions {
    flex: 1;
    justify-content: flex-end;
    align-items: center;
    gap: 0.55rem;
  }

  .menu-toggle {
    display: inline-flex;
    order: 3;
  }

  .topbar nav {
    display: none;
    width: calc(100vw - 2rem);
    margin-top: 0.65rem;
    flex-direction: column;
    gap: 0.45rem;
    background: #001533;
    border: 1px solid rgba(104, 174, 255, 0.25);
    border-radius: 0.7rem;
    padding: 0.6rem;
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% - 0.2rem);
  }

  .topbar nav.open {
    display: flex;
  }

  .lang-selector {
    order: 2;
  }

  .lang-selector i {
    display: none;
  }

  .lang-selector select {
    max-width: 8rem;
  }

  .topbar nav a {
    padding: 0.45rem 0.55rem;
    background: #00204a;
    border-radius: 0.5rem;
  }

  .hero h1 {
    font-size: clamp(1.65rem, 8.4vw, 2.15rem);
  }

  .hero-copy p {
    font-size: 1rem;
  }

  .phone {
    padding: 0.7rem;
    border-radius: 1.1rem;
  }

  .section {
    padding: 1.3rem 0 2rem;
  }

  .section-title {
    margin-bottom: 0.8rem;
  }

  .card {
    padding: 0.85rem;
  }

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

  pre {
    font-size: 0.9rem;
  }
}