:root {
  --bg: #0f172a;
  --bg-alt: #020617;
  --card: #020617;
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.12);
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: rgba(148, 163, 184, 0.35);
  --shadow-soft: 0 16px 40px rgba(15, 23, 42, 0.75);
  --radius-lg: 16px;
  --radius-md: 10px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #1d283a 0, #020617 55%);
  color: var(--text);
  line-height: 1.6;
}

/* Layout */

.container {
  width: min(960px, 100% - 32px);
  margin: 0 auto;
}

/* Header */

.site-header {
  border-bottom: 1px solid var(--border);
  background: linear-gradient(
    135deg,
    rgba(56, 189, 248, 0.12),
    transparent 55%
  );
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
}

.header-content {
  padding: 18px 0 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

h1 {
  font-size: clamp(1.7rem, 3vw, 2.1rem);
  margin: 0 0 4px;
}

.role {
  margin: 0;
  color: var(--accent);
  font-weight: 500;
}

.location {
  margin: 2px 0 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.header-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.9rem;
}

.header-links a {
  color: var(--text);
  text-decoration: none;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: border-color 0.15s ease, background-color 0.15s ease,
    color 0.15s ease, transform 0.12s ease;
}

.header-links a:hover {
  border-color: var(--accent);
  background-color: rgba(15, 23, 42, 0.8);
  transform: translateY(-1px);
}

/* Main sections */

main {
  padding: 28px 0 40px;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

section {
  background: radial-gradient(circle at top left, #1e293b 0, #020617 52%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  padding: 18px 20px 18px;
  scroll-margin-top: 120px;
}

section h2 {
  margin: 0 0 10px;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}

/* About */

#about p {
  margin: 0;
}

/* Skills */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
}

.skill-group {
  background-color: rgba(15, 23, 42, 0.92);
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.35);
  padding: 10px 11px;
}

.skill-group h3 {
  margin: 0 0 4px;
  font-size: 0.95rem;
  color: var(--accent);
}

.skill-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.skill-group li {
  font-size: 0.9rem;
  color: var(--muted);
}

/* Experience & projects */

.item {
  padding: 10px 11px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: radial-gradient(circle at top left, #020617 0, #020617 52%);
  margin-bottom: 10px;
}

.item:last-of-type {
  margin-bottom: 0;
}

.item-header {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 10px;
  align-items: baseline;
  margin-bottom: 6px;
}

.item h3 {
  margin: 0;
  font-size: 0.98rem;
}

.item-meta {
  font-size: 0.8rem;
  color: var(--muted);
}

.item p {
  margin: 0 0 6px;
  font-size: 0.9rem;
}

.item ul {
  margin: 0;
  padding-left: 18px;
  font-size: 0.9rem;
  color: var(--muted);
}

.item a {
  color: var(--accent);
  text-decoration: none;
}

.item a:hover {
  text-decoration: underline;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  background-color: var(--bg-alt);
}

.footer-content {
  padding: 12px 0 18px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 10px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
}

/* Responsive tweaks */

@media (max-width: 640px) {
  .header-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  section {
    padding: 14px 13px 14px;
  }

  .item-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}