:root {
  --bg: #05060b;
  --bg-soft: #0a0d16;
  --panel: rgba(14, 18, 30, 0.82);
  --panel-strong: rgba(18, 15, 30, 0.94);
  --border: rgba(159, 96, 255, 0.24);
  --border-bright: rgba(159, 96, 255, 0.55);
  --text: #f4f1ff;
  --muted: #bcb3d8;
  --purple: #a46cff;
  --purple-2: #7c3cff;
  --green: #61ffb1;
  --blue: #4aa3ff;
  --orange: #ff7a3d;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(124, 60, 255, 0.22), transparent 28rem),
    radial-gradient(circle at 80% 20%, rgba(74, 163, 255, 0.09), transparent 24rem),
    linear-gradient(180deg, #05060b 0%, #080713 45%, #05060b 100%);
  color: var(--text);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(164, 108, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(164, 108, 255, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

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

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 76px;
  padding: 0 42px;
  display: flex;
  align-items: center;
  gap: 32px;
  border-bottom: 1px solid rgba(159, 96, 255, 0.16);
  background: rgba(5, 6, 11, 0.82);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-right: auto;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.site-header nav {
  display: flex;
  gap: 26px;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #ded6ff;
}

.site-header nav a:hover {
  color: var(--green);
}

.nav-button {
  border: 1px solid var(--border-bright);
  padding: 10px 16px;
  border-radius: 8px;
  color: #eee7ff;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero {
  max-width: 1320px;
  margin: 0 auto;
  min-height: calc(100vh - 76px);
  padding: 82px 42px 36px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1,
.section h2,
.split-section h2,
.skills h2 {
  margin: 0;
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.hero h1 {
  font-size: clamp(3rem, 6vw, 5.8rem);
  max-width: 720px;
}

.hero h1 span {
  color: var(--purple);
  text-shadow: 0 0 28px rgba(164, 108, 255, 0.4);
}

.hero-copy p:not(.eyebrow) {
  color: #d4cdec;
  max-width: 660px;
  font-size: 1.05rem;
}

.actions {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.button {
  border-radius: 9px;
  padding: 14px 20px;
  font-weight: 900;
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.primary {
  background: linear-gradient(135deg, var(--purple), var(--purple-2));
  box-shadow: 0 0 30px rgba(164, 108, 255, 0.25);
}

.secondary {
  border: 1px solid var(--border-bright);
  background: rgba(255, 255, 255, 0.02);
}

.hero-art {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-art img {
  max-height: 620px;
  object-fit: contain;
  filter: drop-shadow(0 0 42px rgba(164, 108, 255, 0.35));
}

.hero-art::after {
  content: "";
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  background: rgba(164, 108, 255, 0.12);
  filter: blur(90px);
  z-index: -1;
}

.stats {
  max-width: 1240px;
  margin: 0 auto 18px;
  padding: 0 42px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(12, 15, 27, 0.82);
  overflow: hidden;
}

.stats div {
  padding: 24px;
  border-right: 1px solid rgba(159, 96, 255, 0.16);
}

.stats div:last-child {
  border-right: none;
}

.stats strong {
  display: block;
  font-size: 2rem;
  color: var(--text);
}

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

.split-section,
.section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 72px 42px;
}

.split-section {
  display: grid;
  grid-template-columns: 1.45fr 0.9fr;
  gap: 24px;
}

.panel,
.card,
.feature-card,
.challenge-grid div {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.005)),
    var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
}

.panel {
  padding: 28px;
}

.panel h2,
.section h2,
.skills h2 {
  font-size: clamp(2.2rem, 4vw, 4rem);
}

.panel p,
.section > p,
.card p,
.feature-card p,
.challenge-grid p,
.panel li {
  color: var(--muted);
}

.panel img {
  margin-top: 22px;
  border-radius: 14px;
  border: 1px solid rgba(159, 96, 255, 0.2);
}

.about ul {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
}

.about li {
  margin: 14px 0;
  padding-left: 30px;
  position: relative;
}

.about li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
}

.section > p {
  max-width: 820px;
  margin-bottom: 28px;
}

.card-grid {
  display: grid;
  gap: 22px;
}

.card-grid.two {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  overflow: hidden;
}

.card img {
  width: 100%;
  height: 265px;
  object-fit: cover;
  object-position: top;
  border-bottom: 1px solid rgba(159, 96, 255, 0.18);
}

.card h3 {
  color: var(--purple);
  font-size: 1.45rem;
  padding: 22px 24px 0;
  margin: 0;
}

.card p {
  padding: 8px 24px 24px;
  margin: 0;
}

.feature-card {
  overflow: hidden;
}

.feature-card img {
  width: 100%;
  display: block;
}

.feature-card div {
  padding: 28px;
}

.feature-card h3 {
  color: var(--purple);
  font-size: 1.6rem;
  margin: 0 0 8px;
}

.challenge-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 26px;
}

.challenge-grid div {
  padding: 22px;
}

.challenge-grid h3 {
  color: var(--green);
  margin-top: 0;
}

.skills {
  max-width: 1240px;
  margin: 0 auto;
  padding: 72px 42px 92px;
  text-align: center;
}

.skills-list {
  margin-top: 28px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.skills-list span {
  border: 1px solid var(--border);
  color: #ded6ff;
  background: rgba(18, 15, 30, 0.8);
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.9rem;
}

footer {
  border-top: 1px solid rgba(159, 96, 255, 0.16);
  padding: 34px 42px;
  text-align: center;
  color: var(--muted);
}

footer span {
  color: var(--purple);
  font-weight: 900;
}

footer p {
  margin: 6px 0 0;
}

@media (max-width: 1050px) {
  .site-header {
    position: static;
    height: auto;
    padding: 22px;
    flex-wrap: wrap;
  }

  .site-header nav {
    order: 3;
    width: 100%;
    flex-wrap: wrap;
  }

  .hero,
  .split-section,
  .card-grid.two,
  .challenge-grid {
    grid-template-columns: 1fr;
  }

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

  .stats div {
    border-bottom: 1px solid rgba(159, 96, 255, 0.16);
  }
}

@media (max-width: 650px) {
  .hero,
  .split-section,
  .section,
  .skills {
    padding-left: 20px;
    padding-right: 20px;
  }

  .stats {
    grid-template-columns: 1fr;
    padding: 0 20px;
    border: none;
    background: transparent;
    gap: 12px;
  }

  .stats div {
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--panel);
  }

  .card img {
    height: 210px;
  }
}