:root {
  --bg: #f3f5f4;
  --bg-raised: #ffffff;
  --ink: #14201c;
  --muted: #5a6762;
  --line: #d5dfda;
  --accent: #0c5c56;
  --accent-ink: #f4fffd;
  --accent-soft: #e5f3f1;
  --shadow: 0 16px 40px rgba(20, 32, 28, 0.06);
  --radius: 14px;
  --header: 72px;
  --max: 1120px;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  color-scheme: light;
}

html[data-theme="dark"] {
  --bg: #101614;
  --bg-raised: #18211e;
  --ink: #e7eeeb;
  --muted: #a3b0aa;
  --line: #2c3b36;
  --accent: #3cbfb2;
  --accent-ink: #06211e;
  --accent-soft: #14312e;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  color-scheme: dark;
}

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

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header) + 12px);
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink);
  background:
    radial-gradient(1200px 480px at 90% -10%, var(--accent-soft), transparent 55%),
    var(--bg);
}

body.nav-open {
  overflow: hidden;
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration: none;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 40;
  padding: 8px 12px;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 8px;
}

.skip-link:focus {
  top: 12px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.wrap {
  width: min(var(--max), calc(100% - 32px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--header);
  display: flex;
  align-items: center;
  backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.nav-toggle,
.theme-toggle {
  border: 1px solid var(--line);
  background: var(--bg-raised);
  color: var(--ink);
  border-radius: 8px;
  min-width: 44px;
  min-height: 44px;
  display: grid;
  place-items: center;
  cursor: pointer;
}

.nav-toggle {
  margin-left: auto;
}

.theme-toggle {
  margin-left: 8px;
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

html[data-theme="light"] .icon-sun,
html[data-theme="dark"] .icon-moon {
  display: none;
}

.site-nav {
  display: none;
}

.site-nav.is-open {
  display: block;
  position: absolute;
  inset: var(--header) 0 auto 0;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  padding: 12px 16px 20px;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.site-nav a {
  display: block;
  padding: 10px 12px;
  color: var(--ink);
  text-decoration: none;
  border-radius: 8px;
}

.site-nav a:hover,
.site-nav a[aria-current="true"] {
  background: var(--accent-soft);
  color: var(--accent);
}

.hero {
  padding: 56px 0 28px;
}

.hero-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

.eyebrow,
.kicker,
.panel-kicker,
.step-index {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3,
h4 {
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0;
}

h1 {
  margin-top: 10px;
  font-size: clamp(3rem, 8vw, 5.2rem);
  font-weight: 600;
}

.role {
  margin: 14px 0 0;
  font-size: 1.05rem;
  font-weight: 500;
}

.lede,
.section-intro,
.card p,
.project p,
.connect-card p,
.resume-band p,
.contact-copy {
  color: var(--muted);
}

.lede {
  max-width: 62ch;
  font-size: 1.08rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-secondary {
  background: var(--bg-raised);
  color: var(--ink);
  border-color: var(--line);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn[aria-disabled="true"] {
  cursor: default;
  opacity: 0.72;
}

.hero-panel,
.card,
.project,
.skill-card,
.capability,
.learn-list,
.connect-card,
.contact-panel,
.resume-band,
.about-visual,
.edu-card {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 22px;
}

.panel-kicker {
  margin: 0 0 14px;
}

.focus-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.focus-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

.focus-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.focus-list span:last-child {
  color: var(--muted);
  text-align: right;
}

.bars {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 88px;
  margin-top: 22px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.bars span {
  flex: 1;
  border-radius: 6px 6px 2px 2px;
  background: linear-gradient(to top, var(--accent), color-mix(in srgb, var(--accent) 45%, var(--bg)));
}

.bars span:nth-child(1) { height: 42%; }
.bars span:nth-child(2) { height: 68%; }
.bars span:nth-child(3) { height: 50%; }
.bars span:nth-child(4) { height: 86%; }
.bars span:nth-child(5) { height: 60%; }
.bars span:nth-child(6) { height: 74%; }
.bars span:nth-child(7) { height: 48%; }

.panel-caption {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
}

section {
  padding: 72px 0;
}

.section-head {
  max-width: 68ch;
  margin-bottom: 28px;
}

.section-head h2,
.resume-band h2,
.contact-copy h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-top: 6px;
}

.about-grid,
.contact-grid,
.connect-grid {
  display: grid;
  gap: 24px;
}

.about-copy p {
  color: var(--muted);
}

.about-visual {
  padding: 22px;
  min-height: 280px;
  display: grid;
  align-content: center;
  gap: 16px;
}

.about-visual svg {
  width: 100%;
  height: auto;
}

.chart-axis {
  stroke: var(--muted);
  stroke-opacity: 0.35;
}

.chart-bars {
  fill: var(--accent);
}

.chart-line {
  fill: none;
  stroke: var(--ink);
  stroke-width: 2.5;
  stroke-linejoin: round;
}

.visual-caption {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.edu-card {
  padding: 28px;
  border-top: 3px solid var(--accent);
  max-width: 760px;
}

.edu-card h3 {
  font-size: 1.5rem;
  margin-top: 8px;
}

.edu-school {
  margin: 8px 0 0;
  font-weight: 500;
}

.tags,
.tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.tags li,
.tech li,
.learn-list li {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--ink);
  font-size: 0.9rem;
}

.skill-grid,
.project-grid,
.capability-grid,
.connect-grid {
  display: grid;
  gap: 16px;
}

.skill-card,
.capability,
.connect-card {
  padding: 22px;
}

.skill-card h3,
.capability h3,
.connect-card h3,
.project h3 {
  font-size: 1.15rem;
  margin-top: 8px;
}

.skill-card p,
.capability p {
  margin-bottom: 0;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.filter {
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-raised);
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}

.filter[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.filter-status {
  min-height: 1.4em;
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.92rem;
}

.project {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project p {
  margin: 0;
}

.architecture {
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--ink);
  font-size: 0.95rem;
}

.architecture span,
.work h4 {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.work ul {
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.project .actions {
  margin-top: auto;
  padding-top: 8px;
}

.flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  max-width: 760px;
  position: relative;
}

.flow::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: var(--line);
}

.flow li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
  padding: 10px 0;
  position: relative;
}

.step-index {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-soft);
}

.flow strong {
  font-weight: 600;
}

.learn-list {
  list-style: none;
  margin: 0;
  padding: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.resume-band {
  padding: 36px 28px;
  display: grid;
  gap: 18px;
  align-items: center;
}

.contact-panel {
  padding: 22px;
}

.contact-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.contact-list a,
.contact-list span {
  color: var(--ink);
  text-decoration: none;
}

.contact-list a:hover {
  color: var(--accent);
}

label {
  display: grid;
  gap: 6px;
  font-weight: 500;
  margin-bottom: 14px;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  border-radius: 8px;
  padding: 12px 14px;
  font: inherit;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.form-status {
  min-height: 1.5em;
  margin: 10px 0 0;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 40px;
}

.footer-grid {
  display: grid;
  gap: 16px;
}

.site-footer p,
.site-footer small {
  margin: 6px 0 0;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}

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

.js .reveal {
  opacity: 0;
  transform: translateY(12px);
  animation: none;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 500ms ease, transform 500ms ease;
}

@media (min-width: 760px) {
  .nav-toggle {
    display: none;
  }

  .site-nav,
  .site-nav.is-open {
    display: block;
    position: static;
    background: transparent;
    border: 0;
    padding: 0;
    margin-left: auto;
  }

  .site-nav ul {
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .theme-toggle {
    margin-left: 8px;
  }

  .hero-grid,
  .about-grid,
  .contact-grid,
  .connect-grid,
  .skill-grid,
  .capability-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .skill-grid,
  .capability-grid,
  .project-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .contact-grid {
    grid-template-columns: 0.9fr 1.1fr;
  }

  .resume-band {
    grid-template-columns: 1fr auto;
  }

  .footer-grid {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .site-footer small {
    grid-column: 1 / -1;
  }
}

@media (min-width: 980px) {
  .capability-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .js .reveal,
  .btn {
    transition: none;
    transform: none;
    opacity: 1;
  }
}

@media print {
  .site-header,
  .theme-toggle,
  .filters,
  .contact-panel form,
  .skip-link {
    display: none;
  }

  body {
    background: white;
    color: black;
  }
}