:root {
  --bg: #f5f8fb;
  --bg-soft: #eaf7f4;
  --surface: #ffffff;
  --surface-tint: #eef6ff;
  --ink: #102033;
  --text: #182b3f;
  --muted: #58697a;
  --blue: #0969da;
  --blue-strong: #0757b8;
  --cyan: #06b6d4;
  --green: #059669;
  --amber: #d97706;
  --border: #d7e2ea;
  --focus: #b45309;
  --shadow: 0 18px 45px rgba(16, 32, 51, 0.12);
  --radius: 8px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(9, 105, 218, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(5, 150, 105, 0.05) 1px, transparent 1px),
    linear-gradient(135deg, #ffffff 0%, var(--bg) 48%, var(--bg-soft) 100%);
  background-size:
    44px 44px,
    44px 44px,
    auto;
  color: var(--text);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

a {
  color: var(--blue-strong);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.skip-link {
  background: var(--ink);
  color: #ffffff;
  left: 1rem;
  padding: 0.75rem 1rem;
  position: fixed;
  text-decoration: none;
  top: 1rem;
  transform: translateY(-160%);
  z-index: 10;
}

.skip-link:focus {
  transform: translateY(0);
}

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

.site-header {
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(18px);
}

.nav {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max-width);
  min-height: 74px;
  padding: 0 1.25rem;
}

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  font-weight: 900;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-name {
  font-size: 1.25rem;
  line-height: 1.1;
}

.brand-mark {
  align-items: center;
  background: linear-gradient(135deg, var(--blue), var(--green));
  border-radius: var(--radius);
  color: #ffffff;
  display: inline-flex;
  font-size: 0.85rem;
  height: 2.35rem;
  justify-content: center;
  padding-right: 0.16rem;
  position: relative;
  width: 2.35rem;
}

.brand-mark sup {
  font-size: 0.46rem;
  font-weight: 900;
  line-height: 0;
  position: absolute;
  right: 0.38rem;
  top: 0.42rem;
}

.nav-links {
  align-items: center;
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  border-radius: var(--radius);
  color: var(--muted);
  display: inline-flex;
  font-weight: 800;
  padding: 0.65rem 0.8rem;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="location"] {
  background: var(--surface-tint);
  color: var(--blue-strong);
}

.nav-links a[aria-current="location"] {
  box-shadow: inset 0 -3px 0 var(--blue);
}

.nav-toggle {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  height: 2.75rem;
  justify-content: center;
  width: 2.75rem;
}

.nav-toggle-bar {
  background: var(--ink);
  display: block;
  height: 2px;
  width: 1.2rem;
}

.hero,
.section,
.site-footer {
  margin: 0 auto;
  max-width: var(--max-width);
  padding: 5rem 1.25rem;
}

.hero {
  align-items: center;
  display: grid;
  gap: 3rem;
  grid-template-columns: minmax(0, 1.15fr) minmax(330px, 0.85fr);
  min-height: calc(100vh - 74px);
}

.hero-copy {
  position: relative;
}

.hero-copy::before {
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--green));
  border-radius: 999px;
  content: "";
  display: block;
  height: 5px;
  margin-bottom: 1.4rem;
  width: min(360px, 70%);
}

.eyebrow {
  color: var(--blue-strong);
  font-size: 0.82rem;
  font-weight: 900;
  margin: 0 0 0.8rem;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.08;
  margin: 0;
}

h1 {
  font-size: 4.15rem;
  max-width: 13ch;
}

h2 {
  font-size: 2.55rem;
}

h3 {
  font-size: 1.18rem;
}

.hero-summary {
  color: var(--muted);
  font-size: 1.22rem;
  margin-top: 1.35rem;
  max-width: 64ch;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.6rem;
}

.button {
  align-items: center;
  border: 2px solid transparent;
  border-radius: var(--radius);
  display: inline-flex;
  font-weight: 900;
  justify-content: center;
  min-height: 3rem;
  padding: 0.72rem 1rem;
  text-decoration: none;
}

.button-primary {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 14px 30px rgba(9, 105, 218, 0.22);
  color: #ffffff;
}

.button-primary:hover {
  background: linear-gradient(135deg, var(--blue-strong), var(--green));
}

.button-secondary {
  background: var(--surface);
  border-color: var(--border);
  color: var(--ink);
}

.button-secondary:hover {
  border-color: var(--blue);
  color: var(--blue-strong);
}

.proof-strip {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 30px rgba(16, 32, 51, 0.07);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 2rem 0 0;
  max-width: 780px;
  overflow: hidden;
}

.proof-strip div {
  border-right: 1px solid var(--border);
  padding: 1rem;
}

.proof-strip div:last-child {
  border-right: 0;
}

.proof-strip dt {
  color: var(--green);
  font-size: 0.85rem;
  font-weight: 900;
  text-transform: uppercase;
}

.proof-strip dd {
  color: var(--muted);
  margin: 0.2rem 0 0;
}

.signal-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-kicker {
  background: var(--ink);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 900;
  margin: 0;
  padding: 0.85rem 1rem;
  text-transform: uppercase;
}

.signal-panel h2 {
  color: var(--ink);
  font-size: 1.75rem;
  padding: 1.15rem 1.15rem 0;
}

.architecture-map {
  display: grid;
  gap: 0.75rem;
  padding: 1.15rem;
  position: relative;
}

.architecture-map::before {
  background: linear-gradient(var(--blue), var(--green));
  bottom: 2.2rem;
  content: "";
  left: 2rem;
  position: absolute;
  top: 2.2rem;
  width: 3px;
}

.architecture-node {
  align-items: center;
  background: linear-gradient(90deg, var(--surface-tint), #ffffff);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  gap: 0.8rem;
  min-height: 4.2rem;
  padding: 0.85rem 1rem 0.85rem 2.35rem;
  position: relative;
}

.architecture-node::before {
  background: var(--surface);
  border: 3px solid var(--blue);
  border-radius: 50%;
  content: "";
  height: 0.85rem;
  left: 0.55rem;
  position: absolute;
  width: 0.85rem;
  z-index: 1;
}

.architecture-node span {
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 900;
}

.architecture-node strong {
  color: var(--ink);
}

.node-primary {
  background: linear-gradient(90deg, #e0f2fe, #ecfdf5);
  border-color: rgba(9, 105, 218, 0.28);
}

.status-grid {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 0;
  grid-template-columns: 1fr 1fr;
  margin: 0;
}

.status-grid div {
  padding: 1rem;
}

.status-grid div + div {
  border-left: 1px solid var(--border);
}

.status-grid dt {
  color: var(--blue-strong);
  font-weight: 900;
}

.status-grid dd {
  color: var(--muted);
  margin: 0.25rem 0 0;
}

.section-heading {
  display: grid;
  gap: 1rem;
  grid-template-columns: 190px minmax(0, 1fr);
  margin-bottom: 2rem;
  max-width: 900px;
  padding-top: 1.25rem;
  position: relative;
}

.section-heading::before {
  background: linear-gradient(90deg, var(--blue), var(--green));
  content: "";
  height: 3px;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
}

.about-grid,
.skill-grid,
.project-list,
.education-grid {
  display: grid;
  gap: 1rem;
}

.about-grid {
  grid-template-columns: 1fr;
  max-width: 930px;
}

.about-grid p {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 5px solid var(--green);
  border-radius: var(--radius);
  margin: 0;
  padding: 1.1rem 1.25rem;
}

.section-accent {
  background: rgba(234, 247, 244, 0.62);
  box-shadow: 0 0 0 100vmax rgba(234, 247, 244, 0.62);
  clip-path: inset(0 -100vmax);
}

.skill-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-list,
.education-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.skill-card,
.project-card,
.experience-card,
.education-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(16, 32, 51, 0.06);
  padding: 1.25rem;
}

.skill-card {
  border-top: 4px solid var(--blue);
}

.project-card {
  border-top: 4px solid var(--green);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
}

.experience-card {
  border-left: 5px solid var(--blue);
}

.education-card {
  border-top: 4px solid var(--amber);
}

.skill-card p,
.project-card p,
.experience-card p,
.education-card p,
.contact p {
  color: var(--muted);
  margin-bottom: 0;
}

.project-status {
  color: var(--amber);
  font-size: 0.82rem;
  font-weight: 900;
  margin: 0 0 0.55rem;
  text-transform: uppercase;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
}

.tag-list li {
  background: var(--surface-tint);
  border: 1px solid rgba(9, 105, 218, 0.16);
  border-radius: 999px;
  color: var(--blue-strong);
  font-size: 0.82rem;
  font-weight: 900;
  padding: 0.28rem 0.65rem;
}

.experience-list {
  display: grid;
  gap: 1rem;
}

.experience-card-featured {
  border-left-color: var(--green);
}

.experience-card ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.experience-card li + li {
  margin-top: 0.55rem;
}

.experience-header {
  align-items: baseline;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.experience-header p {
  color: var(--blue-strong);
  font-weight: 900;
  margin: 0;
  text-align: right;
}

.education-card p {
  margin-top: 0.85rem;
}

.contact {
  align-items: center;
  background: var(--ink);
  border-radius: var(--radius);
  color: #ffffff;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-bottom: 4rem;
  padding: 3rem 1.5rem;
}

.contact h2,
.contact .eyebrow {
  color: #ffffff;
}

.contact p {
  color: #d8e6ef;
}

.contact .button-secondary {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.35);
  color: #ffffff;
}

.site-footer {
  color: var(--muted);
  padding-top: 1.5rem;
}

@media (max-width: 860px) {
  .nav {
    align-items: flex-start;
    flex-wrap: wrap;
    padding-bottom: 0.85rem;
    padding-top: 0.85rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .brand {
    max-width: calc(100% - 4rem);
  }

  .brand-name {
    font-size: 1.08rem;
  }

  .nav-links {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    padding: 0.4rem;
    width: 100%;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
  }

  .hero,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 4rem;
  }

  h1 {
    font-size: 2.65rem;
  }

  h2 {
    font-size: 2rem;
  }

  .proof-strip,
  .status-grid {
    grid-template-columns: 1fr;
  }

  .proof-strip div {
    border-bottom: 1px solid var(--border);
    border-right: 0;
  }

  .proof-strip div:last-child {
    border-bottom: 0;
  }

  .status-grid div + div {
    border-left: 0;
    border-top: 1px solid var(--border);
  }

  .section-heading,
  .about-grid,
  .skill-grid,
  .project-list,
  .education-grid {
    grid-template-columns: 1fr;
  }

  .experience-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.4rem;
  }

  .experience-header p {
    text-align: left;
  }

  .contact-actions {
    width: 100%;
  }
}

@media (min-width: 861px) and (max-width: 1080px) {
  .skill-grid,
  .project-list,
  .education-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}