:root {
  --bg: #060816;
  --bg-soft: #101733;
  --card: #121a39;
  --text: #ecf1ff;
  --muted: #b1bddf;
  --primary: #6f8bff;
  --accent: #4de2c5;
  --border: rgba(255, 255, 255, 0.12);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% -10%, #314285 0%, transparent 40%),
    radial-gradient(circle at 90% 10%, #1d7b89 0%, transparent 35%),
    var(--bg);
  line-height: 1.6;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0;
  z-index: 1000;
  background: linear-gradient(90deg, var(--accent), var(--primary));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5vw;
  background: rgba(8, 11, 24, 0.78);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-family: "Space Grotesk", sans-serif;
  color: #fff;
  text-decoration: none;
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
}

nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

nav a:hover {
  color: #fff;
}

.menu-toggle {
  display: none;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  display: block;
  margin: 5px 0;
  background: #fff;
}

main {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.section {
  padding: 5rem 0;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2.5rem;
  align-items: center;
  min-height: 85vh;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1.2rem;
}

.hero-text {
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.8rem;
}


.hero-content {
  position: relative;
}

.hero-content::after {
  content: "";
  position: absolute;
  inset: auto -20px -20px auto;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(77, 226, 197, 0.22), transparent 70%);
  pointer-events: none;
}

.hero-highlights {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.hero-highlights span {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  color: #d9e4ff;
}

.btn {
  text-decoration: none;
  padding: 0.75rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
}

.btn.primary {
  background: linear-gradient(90deg, var(--primary), #8f62ff);
  color: #fff;
}

.btn.ghost {
  color: #fff;
  border-color: var(--border);
}

.hero-photo-wrap {
  position: relative;
  min-height: 420px;
}

.hero-photo {
  width: 100%;
  object-fit: cover;
  border-radius: 24px;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.main-photo {
  aspect-ratio: 4 / 5;
}

.floating-photo {
  position: absolute;
  width: 42%;
  right: -4%;
  bottom: -10%;
  aspect-ratio: 3 / 4;
}

.section-heading p {
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.section-heading h2 {
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  margin-bottom: 1.4rem;
}

.card-section {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
  color: var(--muted);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.8rem;
}

.skill-chip {
  background: linear-gradient(130deg, rgba(16, 23, 51, 0.95), rgba(25, 36, 77, 0.82));
  border: 1px solid var(--border);
  border-radius: 999px;
  text-align: center;
  padding: 0.6rem 1rem;
  font-weight: 600;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.skill-chip:hover {
  transform: translateY(-2px);
  border-color: rgba(77, 226, 197, 0.6);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.project-card {
  border: 1px solid var(--border);
  background: linear-gradient(170deg, rgba(21, 31, 68, 0.95), rgba(15, 22, 47, 0.9));
  border-radius: 18px;
  padding: 1.2rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.33);
}

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

.project-card ul {
  margin-top: 0.6rem;
  padding-left: 1rem;
}


.project-link {
  display: inline-block;
  margin-top: 0.75rem;
  text-decoration: none;
  color: #fff;
  font-weight: 600;
  border: 1px solid rgba(111, 139, 255, 0.55);
  background: rgba(111, 139, 255, 0.15);
  border-radius: 10px;
  padding: 0.45rem 0.7rem;
}

.project-link:hover {
  background: rgba(111, 139, 255, 0.28);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
}

.cert-card {
  text-decoration: none;
  color: var(--text);
  padding: 1rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  transition: transform 0.2s ease;
}

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

.contact {
  text-align: center;
}

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

.social-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.social-links a {
  text-decoration: none;
  color: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
}

footer {
  text-align: center;
  padding: 2rem 0 3rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 2rem;
  }

  .hero-photo-wrap {
    min-height: 360px;
    width: min(92%, 420px);
    margin: 0 auto;
  }

  .floating-photo {
    position: absolute;
    width: 42%;
    right: -2%;
    bottom: -6%;
    margin-top: 0;
    border-width: 2px;
  }

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

  .menu-toggle {
    display: inline-block;
  }

  nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    display: grid;
    gap: 0;
    background: #0b1025;
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  nav a {
    padding: 0.9rem 5vw;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  nav.open {
    max-height: 350px;
  }
}