:root {
  --bg: #0b132b;
  --surface: #1c2541;
  --card: #3a506b;
  --accent: #5bc0be;
  --text: #ffffff;
  --muted: #c9d3e0;
  --shadow: rgba(4, 12, 29, 0.45);
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", sans-serif;
  margin: 0;
  padding: 2rem 1rem;
  background:
    radial-gradient(circle at 10% 20%, rgba(91, 192, 190, 0.15), transparent 35%),
    radial-gradient(circle at 85% 10%, rgba(58, 80, 107, 0.35), transparent 40%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

main {
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  animation: fade-up 0.7s ease-out;
}

.hero {
  text-align: center;
  margin-bottom: 2.5rem;
  background: linear-gradient(160deg, rgba(28, 37, 65, 0.94), rgba(58, 80, 107, 0.78));
  border: 1px solid rgba(91, 192, 190, 0.35);
  border-radius: 16px;
  padding: 2rem 1.2rem;
  box-shadow: 0 16px 30px var(--shadow);
  backdrop-filter: blur(2px);
}

h1 {
  font-size: 2.5rem;
  margin: 0 0 0.5rem;
  letter-spacing: 0.5px;
}

p {
  font-size: 1.2rem;
  margin: 0;
  color: var(--muted);
}

.socials {
  margin-top: 1.5rem;
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.socials a {
  color: var(--text);
  text-decoration: none;
  font-weight: bold;
  border: 1px solid rgba(91, 192, 190, 0.6);
  background: rgba(91, 192, 190, 0.12);
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.socials a:hover {
  background: rgba(91, 192, 190, 0.24);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.section-title {
  font-size: 1.6rem;
  margin: 0 0 1rem;
  display: inline-block;
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 55%;
  height: 3px;
  margin-top: 0.4rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.projects {
  margin-top: 2rem;
}

.project-list {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.project-card {
  --mx: 50%;
  --my: 50%;
  background: linear-gradient(180deg, rgba(58, 80, 107, 0.95), rgba(28, 37, 65, 0.95));
  border: 1px solid rgba(91, 192, 190, 0.4);
  border-radius: 14px;
  padding: 1.1rem;
  box-shadow: 0 10px 24px rgba(3, 8, 22, 0.25);
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
  animation: fade-up 0.8s ease both;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    240px circle at var(--mx) var(--my),
    rgba(91, 192, 190, 0.28),
    rgba(91, 192, 190, 0.12) 28%,
    rgba(91, 192, 190, 0) 65%
  );
  opacity: 0;
  transition: opacity 0.22s ease;
  pointer-events: none;
  z-index: 0;
}

.project-card > * {
  position: relative;
  z-index: 1;
}

.project-card:nth-child(2) {
  animation-delay: 0.12s;
}

.project-card:nth-child(3) {
  animation-delay: 0.24s;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 30px rgba(3, 8, 22, 0.35);
  border-color: var(--accent);
}

.project-card:hover::before {
  opacity: 1;
}

.project-card:focus-within::before {
  opacity: 1;
}

.project-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.project-card p {
  font-size: 1rem;
  line-height: 1.5;
  margin-bottom: 0.75rem;
}

.project-card a,
.github-profile a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

.project-card a:hover,
.github-profile a:hover {
  color: var(--text);
  text-decoration: underline;
}

.github-profile {
  margin-top: 2rem;
  text-align: center;
  background: rgba(28, 37, 65, 0.9);
  border: 1px solid rgba(91, 192, 190, 0.32);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 10px 20px rgba(4, 12, 29, 0.25);
}

footer {
  margin-top: 3rem;
  font-size: 0.9rem;
  color: var(--muted);
  text-align: center;
  opacity: 0.85;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  h1 {
    font-size: 2rem;
  }

  p {
    font-size: 1.05rem;
  }

  .hero {
    padding: 1.5rem 1rem;
  }
}