:root {
  --font-serif: "Instrument Serif", Georgia, serif;
  --font-sans: "Inter", system-ui, sans-serif;

  --background: #fafafa;
  --foreground: #241f26;
  --muted-text: #5f5f67;
  --subtle-text: #a1a1aa;
  --surface: rgba(244, 244, 245, 0.6);
  --line: rgba(0, 0, 0, 0.08);
  --line-strong: rgba(0, 0, 0, 0.12);
  --button-dark: #18181b;
  --button-dark-hover: #27272a;
  --button-light-hover: #f4f4f5;
  --status: #10b981;
  --radius: 0.75rem;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: #ffffff;
  border: 1px solid var(--line-strong);
  padding: 0.75rem 1rem;
  border-radius: 999px;
  z-index: 100;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(100%, 72rem);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(250, 250, 250, 0.8);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.topbar-inner {
  min-height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.status-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-dot {
  position: relative;
  width: 0.5rem;
  height: 0.5rem;
  display: inline-flex;
}

.status-dot-ping,
.status-dot-core {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: var(--status);
}

.status-dot-ping {
  opacity: 0.45;
  animation: ping 1.8s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.status-dot-core {
  position: relative;
}

.status-text,
.school-text,
.section-label,
.skill-eyebrow,
.footer-meta span {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.status-text {
  color: #71717a;
}

.school-text,
.section-label,
.skill-eyebrow,
.footer-meta span {
  color: var(--subtle-text);
}

.hero {
  padding: 6rem 0 8rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.hero h1,
.skills h2,
.contact h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.03em;
  margin: 0;
}

.hero h1 {
  font-size: clamp(3.25rem, 9vw, 7rem);
  line-height: 0.95;
}

.hero-bottom {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  justify-content: space-between;
}

.hero-copy,
.contact p,
.skill-column li span {
  color: var(--muted-text);
}

.hero-copy {
  max-width: 56ch;
  margin: 0;
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.button-primary {
  background: var(--button-dark);
  color: #fafafa;
  border: 1px solid #09090b;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--button-dark-hover);
}

.button-secondary {
  border: 1px solid var(--line-strong);
  background: transparent;
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--button-light-hover);
}

.skills {
  padding: 6rem 0;
  background: var(--surface);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.skills h2 {
  max-width: 28ch;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.skill-column {
  padding: 2rem 0 0;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.skill-column:first-child {
  border-top: none;
  padding-top: 0;
}

.skill-column h3 {
  margin: 0 0 1.5rem;
  font-size: 1.25rem;
  font-weight: 500;
}

.skill-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.skill-column li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.bullet {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: #d4d4d8;
  flex: 0 0 auto;
}

.feature-image {
  padding: 3rem 0;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-image img {
  width: 100%;
  height: 17.5rem;
  object-fit: cover;
  border-radius: var(--radius);
  outline: 1px solid rgba(0, 0, 0, 0.05);
  outline-offset: -1px;
  box-shadow: var(--shadow);
}

.contact {
  padding: 8rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.contact h2 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: 1.5rem;
}

.contact p {
  margin: 0;
  max-width: 40ch;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid transparent;
}

.contact-link:hover,
.contact-link:focus-visible {
  border-bottom-color: var(--foreground);
}

.contact-link-primary {
  font-size: 1.75rem;
  font-weight: 500;
}

.contact-link:not(.contact-link-primary) {
  font-size: 1rem;
  color: var(--muted-text);
}

.arrow {
  color: #a1a1aa;
  font-size: 1.25rem;
}

.footer-meta {
  width: 100%;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.button:focus-visible,
.contact-link:focus-visible {
  outline: 2px solid #18181b;
  outline-offset: 3px;
}

@keyframes ping {
  75%,
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

@media (min-width: 768px) {
  .hero-bottom,
  .contact-grid {
    grid-template-columns: 1fr auto;
  }

  .hero-bottom {
    display: flex;
    flex-direction: row;
    align-items: flex-end;
  }

  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .skill-column {
    border-top: none;
    padding-top: 0;
    padding-left: 3rem;
    padding-right: 3rem;
    border-left: 1px solid rgba(0, 0, 0, 0.05);
  }

  .skill-column:first-child {
    padding-left: 0;
    border-left: none;
  }

  .skill-column:last-child {
    padding-right: 0;
  }

  .feature-image img {
    height: 25rem;
  }

  .contact-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    justify-content: space-between;
  }
}

@media (max-width: 767px) {
  .school-text {
    display: none;
  }

  .contact-link-primary {
    font-size: 1.4rem;
  }
}