:root {
  --bg: #070b0f;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-strong: rgba(255, 255, 255, 0.055);
  --text: #e5e7eb;
  --muted: #a8b3c2;
  --teal: #00e0b8;
  --purple: #9b5cff;
  --line: rgba(255, 255, 255, 0.11);
  --line-teal: rgba(0, 224, 184, 0.22);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px),
    radial-gradient(circle at 50% 12%, rgba(0,224,184,0.16), transparent 28%),
    radial-gradient(circle at 85% 80%, rgba(155,92,255,0.13), transparent 30%);
  background-size:
    48px 48px,
    48px 48px,
    100% 100%,
    100% 100%;
  background-attachment: fixed;
}

.site-shell {
  width: min(1120px, 90%);
  margin: 0 auto;
}

/* Top navigation */

.top-nav {
  position: fixed;
  top: 28px;
  right: 48px;
  z-index: 1000;
  display: flex;
  gap: 32px;
  align-items: center;
}

.top-nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  opacity: 0.9;
}

.top-nav a:hover {
  color: var(--teal);
}

/* Hero */

.hero {
  min-height: 62vh;
  position: relative;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  text-align: center;
  padding-top: 80px;
}

.logo {
  width: 200px;
  height: auto;

  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);

  margin: 0;
  filter: drop-shadow(0 0 18px rgba(0,224,184,0.22));
}

.brand {
  margin-top: 140px;
  margin: 0;
  font-size: clamp(4rem, 8vw, 6.6rem);
  font-weight: 600;
  letter-spacing: 0.015em;
  line-height: 1;
  text-transform: none;
  text-shadow:
    0 0 18px rgba(0,224,184,0.12),
    0 0 34px rgba(255,255,255,0.05);
}

.brand-light {
  color: var(--text);
}

.brand-accent {
  color: var(--teal);
}

.description {
  max-width: 720px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Sections */

.projects-section {
  margin-top: 24px;
  margin-bottom: 80px;
}

.about-section,
.contact-section {
  margin-bottom: 80px;
}

.projects-section h2,
.about-section h2,
.contact-section h2 {
  margin: 0 0 22px;
  color: var(--teal);
  font-size: 1.25rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

.card {
  display: block;              /* ← THIS is the missing piece */

  min-height: 170px;
  padding: 28px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.018));

  color: inherit;
  text-decoration: none;
  transition: 0.2s ease;
  cursor: pointer;
}

.card:hover {
  border-color: rgba(0,224,184,0.4);
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(0,224,184,0.08);
}

.card h3 {
  margin: 0 0 18px;
  color: var(--text);
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

/* About */

.about-section {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.025);
  padding: 32px;
}

.about-container {
  display: flex;
  gap: 28px;
  align-items: center;
}

.profile {
  width: 105px !important;
  height: 105px !important;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid rgba(0,224,184,0.5);
  box-shadow: 0 0 18px rgba(0,224,184,0.14);
  flex-shrink: 0;
}

.about-copy p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* Contact */

.contact-section {
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

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

/* Footer */

footer {
  border-top: 1px solid var(--line);
  margin-top: 60px;
  padding: 28px 0 40px;
  text-align: center;
}

footer p {
  margin: 0;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

/* Responsive */

@media (max-width: 900px) {
  .top-nav {
    position: static;
    justify-content: center;
    padding: 24px 0 0;
    gap: 18px;
    flex-wrap: wrap;
  }

  .hero {
    min-height: 70vh;
    padding-top: 44px;
  }

  .logo {
    width: 130px;
    margin-bottom: 36px;
  }

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

  .about-container {
    flex-direction: column;
    align-items: flex-start;
  }

  .brand {
    font-size: clamp(3.2rem, 15vw, 5rem);
  }
}