:root {
  --background: #0b1120;
  --surface: #111827;
  --surface-light: #1f2937;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --border: #263449;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background:
    radial-gradient(
      circle at top right,
      #172554 0,
      transparent 32rem
    ),
    var(--background);
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
}


/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(11, 17, 32, 0.8);
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent);
  color: #082f49;
  font-weight: 800;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
}


/* Hero */

.hero {
  min-height: 75vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 80px;
  padding-bottom: 100px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(3rem, 9vw, 6.8rem);
  line-height: 0.95;
  letter-spacing: -0.055em;
}

.hero-copy {
  max-width: 680px;
  margin: 34px 0 0;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}


/* Buttons */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 10px;
  font-weight: 600;
  transition:
    transform 0.2s ease,
    background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--accent);
  color: #082f49;
}

.button.secondary {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}


/* Sections */

.section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.section-heading {
  max-width: 750px;
}

.section h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.section-copy {
  max-width: 760px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 1.15rem;
}


/* Stack */

.stack-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.stack-list span {
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.025);
  color: #cbd5e1;
}


/* Projects */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 42px;
}

.project-card {
  min-height: 340px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(
    145deg,
    var(--surface),
    #0f172a
  );
  border: 1px solid var(--border);
  border-radius: 18px;
}

.project-card h3 {
  margin: 8px 0 16px;
  font-size: 1.7rem;
}

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

.project-card a {
  color: var(--accent);
  font-weight: 600;
}

.project-status {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.muted-link {
  color: #64748b;
}


/* Contact */

.contact-card {
  padding: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background: var(--surface);
}

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


/* Footer */

.footer {
  padding-top: 32px;
  padding-bottom: 40px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #64748b;
  border-top: 1px solid var(--border);
}


/* Mobile */

@media (max-width: 800px) {
  .nav-links {
    gap: 16px;
    font-size: 0.9rem;
  }

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

  .project-card {
    min-height: 280px;
  }

  .contact-card {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .nav-links {
    display: none;
  }

  .hero {
    min-height: 70vh;
    padding-top: 60px;
    padding-bottom: 70px;
  }

  .section {
    padding: 72px 0;
  }

  .contact-card {
    padding: 28px;
  }

  .footer {
    flex-direction: column;
  }
}