:root {
  --bg: #070a12;
  --text: #eaf0ff;
  --muted: rgba(234, 240, 255, 0.7);
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.09);
  --stroke: rgba(255, 255, 255, 0.12);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: radial-gradient(
      1000px 700px at 20% 10%,
      rgba(98, 0, 255, 0.22),
      transparent 60%
    ),
    radial-gradient(
      900px 700px at 80% 20%,
      rgba(0, 255, 200, 0.18),
      transparent 55%
    ),
    radial-gradient(
      900px 700px at 50% 90%,
      rgba(255, 160, 0, 0.14),
      transparent 55%
    ),
    var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

/* Spotlight effect */
.spotlight {
  position: fixed;
  inset: 0;
  pointer-events: none;

  /* performance helpers */
  will-change: background;
  transform: translateZ(0);
  contain: paint;

  /* keep your existing values */
  background: radial-gradient(
    600px 400px at var(--x, 50%) var(--y, 50%),
    rgba(255, 255, 255, 0.12),
    rgba(255, 255, 255, 0.04) 35%,
    transparent 60%
  );

  /* this is expensive; if still laggy, see option below */
  mix-blend-mode: screen;

  opacity: 0.9;
  transition: opacity 200ms ease;
}

.hero {
  min-height: 100vh;
  display: grid;
  align-content: start;
  padding: 24px;
  position: relative;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1080px;
  margin: 0 auto;
  width: 100%;
}

.nav__left {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--card);
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
  font-weight: 700;
}

.nav__right {
  display: flex;
  gap: 16px;
}
.nav__link {
  color: var(--muted);
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
}
.nav__link:hover {
  border-color: var(--stroke);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.hero__content {
  max-width: 1080px;
  margin: 80px auto 0;
  width: 100%;
}

.hero__kicker {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--stroke);
  color: var(--muted);
}

.hero__title {
  font-size: clamp(44px, 6vw, 72px);
  margin: 14px 0 10px;
  letter-spacing: -0.03em;
}

.hero__subtitle {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.btn {
  border: 1px solid var(--stroke);
  border-radius: 14px;
  padding: 12px 16px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.btn_primary {
  background: linear-gradient(
    135deg,
    rgba(98, 0, 255, 0.65),
    rgba(0, 255, 200, 0.3)
  );
  border-color: rgba(255, 255, 255, 0.18);
}

.btn_ghost:hover,
.btn_primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.hero__hint {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin-top: 18px;
  padding: 8px 12px;
  border-radius: 999px;

  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(6px);

  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
}

.hero__dot {
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: rgba(0, 255, 200, 1);
  box-shadow: 0 0 26px rgba(0, 255, 200, 0.75);
}

.hero__scroll {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  width: auto;
  margin: 0;
  opacity: 0.65;
  z-index: 2;
}

.scrollLink {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;

  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;

  color: rgba(234, 240, 255, 0.65);
  text-decoration: none;

  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(6px);
}

.scrollLink:hover {
  color: rgba(234, 240, 255, 0.95);
  border-color: rgba(255, 255, 255, 0.22);
}

.section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 80px 24px;
}

.section__header {
  margin-bottom: 22px;
}
.section__title {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.02em;
}
.section__desc {
  margin: 8px 0 0;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.card {
  grid-column: span 6;
  background: linear-gradient(180deg, var(--card), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.card_muted {
  opacity: 0.75;
}

.card__top {
  display: grid;
  gap: 6px;
}

.card__title {
  margin: 0;
  font-size: 20px;
}

.card__tag {
  margin: 0;
  color: rgba(234, 240, 255, 0.6);
  font-size: 14px;
}

.card__body {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.card__links {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.link {
  color: var(--text);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.04);
}
.link:hover {
  background: rgba(255, 255, 255, 0.08);
}

.link_disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.contact {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 26px 24px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: rgba(234, 240, 255, 0.55);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__top {
  color: rgba(234, 240, 255, 0.55);
  text-decoration: none;
}
.footer__top:hover {
  color: var(--text);
}

@media (max-width: 900px) {
  .card {
    grid-column: span 12;
  }
}

/* --- Hero entrance animation --- */
.hero__content {
  animation: enter 700ms ease-out both;
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Stagger children slightly */
.hero__kicker {
  animation: enter 650ms ease-out both;
}
.hero__title {
  animation: enter 750ms ease-out both;
}
.hero__subtitle {
  animation: enter 850ms ease-out both;
}
.hero__actions {
  animation: enter 950ms ease-out both;
}
.hero__hint {
  animation: hintPulse 2.5s ease-in-out 3;
}

.hero__kicker,
.hero__title,
.hero__subtitle,
.hero__actions,
.hero__hint {
  will-change: transform, opacity;
}

/* --- Parallax glow --- */
.hero::before {
  content: "";
  position: absolute;
  inset: -20%;
  background: radial-gradient(
    500px 360px at var(--hx, 50%) var(--hy, 50%),
    rgba(98, 0, 255, 0.18),
    rgba(0, 255, 200, 0.1) 40%,
    transparent 70%
  );
  filter: blur(18px);
  opacity: 0.9;
  transform: translate3d(var(--px, 0px), var(--py, 0px), 0);
  pointer-events: none;
}

.hero {
  position: relative;
}

/* --- Button micro-interactions --- */
.btn {
  transition: transform 150ms ease, filter 150ms ease, background 150ms ease,
    opacity 150ms ease;
}

.btn:active {
  transform: translateY(1px) scale(0.99);
}

.btn_primary {
  position: relative;
  overflow: hidden;
}

/* soft shimmer on hover */
.btn_primary::after {
  content: "";
  position: absolute;
  top: -40%;
  left: -60%;
  width: 60%;
  height: 200%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.18),
    transparent
  );
  transform: rotate(20deg);
  opacity: 0;
  transition: opacity 200ms ease;
}

.btn_primary:hover::after {
  opacity: 1;
  animation: shimmer 900ms ease forwards;
}

@keyframes shimmer {
  from {
    transform: translateX(0) rotate(20deg);
  }
  to {
    transform: translateX(240%) rotate(20deg);
  }
}

@keyframes hintPulse {
  0%,
  100% {
    opacity: 0.85;
  }
  50% {
    opacity: 1;
  }
}