:root {
  --bg: #0a0e14;
  --text: #e6edf3;
  --muted: #8b98a5;
  --blue: #00a8ff;
  --green: #00e676;
  --surface: #0f1722;
  --border: rgba(139, 152, 165, 0.2);
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

.container {
  width: 100%;
  max-width: 72rem;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

main {
  flex: 1;
}

a {
  color: var(--blue);
}

a:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 6px;
}

.accent {
  background: linear-gradient(90deg, var(--blue), var(--green));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.text-blue {
  color: var(--blue);
}

.text-green {
  color: var(--green);
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
}

.skip-link:focus {
  top: 1rem;
}

/* ---- Buttons ------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.5rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.btn--primary {
  background: linear-gradient(90deg, var(--blue), var(--green));
  color: var(--bg);
}

.btn--primary:hover {
  box-shadow: 0 0 24px rgba(0, 168, 255, 0.35);
  transform: translateY(-1px);
}

.btn--outline {
  border-color: var(--blue);
  color: var(--text);
}

.btn--outline:hover {
  background: rgba(0, 168, 255, 0.12);
}

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

.btn--ghost:hover {
  border-color: var(--green);
}

/* ---- Header -------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 14, 20, 0.85);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav__links {
  display: none;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__links a {
  color: var(--muted);
  font-weight: 500;
  text-decoration: none;
}

.site-nav__links a:hover {
  color: var(--text);
}

@media (min-width: 640px) {
  .site-nav__links {
    display: flex;
  }
}

/* ---- Hero ---------------------------------------------------------------- */

.hero {
  position: relative;
  padding-block: clamp(3rem, 10vw, 7rem) clamp(2.5rem, 8vw, 5rem);
  background:
    radial-gradient(40rem 24rem at 15% 0%, rgba(0, 168, 255, 0.16), transparent 70%),
    radial-gradient(36rem 22rem at 90% 30%, rgba(0, 230, 118, 0.1), transparent 70%);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--green);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero__title {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.25rem, 7vw, 4.5rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.hero__lead {
  max-width: 40rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
}

.hero__pillars {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.hero__pillars a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
}

.hero__pillars a:hover {
  border-color: var(--blue);
}

.dot {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  flex: none;
}

.dot--blue {
  background: var(--blue);
}

.dot--green {
  background: var(--green);
}

.dot--mix {
  background: linear-gradient(135deg, var(--blue), var(--green));
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* ---- Services ------------------------------------------------------------ */

.section-title {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  letter-spacing: -0.02em;
}

.services {
  padding-block: clamp(3rem, 8vw, 6rem);
}

.services__grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  --card-accent: var(--blue);
  --card-bar: var(--blue);
  position: relative;
  overflow: hidden;
  scroll-margin-top: 5rem;
  padding: 1.75rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: var(--card-bar);
}

.card--green {
  --card-accent: var(--green);
  --card-bar: var(--green);
}

.card--mix {
  --card-accent: #00c7b7;
  --card-bar: linear-gradient(90deg, var(--blue), var(--green));
}

.card__icon {
  width: 2.5rem;
  height: 2.5rem;
  fill: none;
  stroke: var(--card-accent);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card h3 {
  margin: 1rem 0 0.5rem;
  font-size: 1.5rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.card__list {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.card__list li {
  position: relative;
  padding: 0.4rem 0 0.4rem 1.25rem;
}

.card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.95rem;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--card-accent);
}

/* ---- Call to action ------------------------------------------------------ */

.cta {
  padding-block: 0 clamp(3rem, 8vw, 6rem);
  text-align: center;
}

.cta p {
  margin: 0 0 1.5rem;
}

/* ---- Footer -------------------------------------------------------------- */

.site-footer {
  padding-block: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.site-footer p {
  margin: 0;
}

/* ---- Brand ---------------------------------------------------------------- */

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand--small {
  font-size: 1rem;
}

.brand__mark {
  width: 1.6em;
  height: 1.6em;
  flex: none;
}

/* ---- Infinite marquee ------------------------------------------------------
 * The track holds two identical groups. Each item carries its own trailing
 * spacing (no flex gap between groups), so translating the track by exactly
 * -50% lands the second group where the first started: a seamless loop.
 */

.marquee {
  --marquee-duration: 30s;
  --marquee-spacing: 2.5rem;
  overflow: hidden;
  padding: 1rem 0;
  border-block: 1px solid rgba(0, 168, 255, 0.15);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee-scroll var(--marquee-duration) linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee__group {
  display: flex;
  flex: none;
  /* Each copy covers at least the viewport, so no gap shows on wide screens. */
  min-width: 100vw;
  justify-content: space-around;
  margin: 0;
  padding: 0;
  list-style: none;
}

.marquee__group li {
  display: flex;
  align-items: center;
  gap: var(--marquee-spacing);
  padding-right: var(--marquee-spacing);
  font-size: clamp(1rem, 2.5vw, 1.375rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--text);
}

.marquee__group li::after {
  content: "";
  width: 0.5em;
  height: 0.5em;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--green));
}

@keyframes marquee-scroll {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-50%, 0, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .marquee__track {
    animation: none;
    transform: none;
  }

  .btn {
    transition: none;
  }

  .btn--primary:hover {
    transform: none;
  }
}