@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap");

* {
  box-sizing: border-box;
}

:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #111827;
  --muted: #64748b;
  --line: #e5e7eb;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
}

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

.hero {
  min-height: 100vh;
  padding: 28px;
  color: white;
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.45), transparent 35%),
    linear-gradient(135deg, #0f172a, #1e3a8a 55%, #4c1d95);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.links {
  display: flex;
  gap: 20px;
}

.links a {
  opacity: 0.85;
}

.links a:hover {
  opacity: 1;
}

.text-link {
  color: var(--blue);
  font-weight: 700;
  word-break: break-word;
}

.hero-content {
  max-width: 860px;
  margin: 140px auto 0;
  text-align: center;
}

.tag {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

h1 {
  margin: 18px 0;
  font-size: clamp(44px, 8vw, 86px);
  line-height: 1.05;
  letter-spacing: -0.06em;
}

.intro {
  margin: 0 auto;
  max-width: 720px;
  font-size: 18px;
  line-height: 1.8;
  opacity: 0.9;
}

.buttons {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.button,
button {
  padding: 13px 22px;
  border: 0;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}

.primary {
  color: #1d4ed8;
  background: white;
}

.secondary {
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.12);
}

.blue {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  background: var(--blue);
}

.hero-meta {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.hero-meta span {
  padding: 9px 13px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.1);
  font-size: 14px;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px 24px;
}

.card,
.item,
.timeline-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.section {
  margin-bottom: 42px;
}

.card {
  padding: 34px;
}

.intro-card,
.split-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: center;
}

.split-card {
  grid-template-columns: 1fr auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.item {
  padding: 26px;
}

.project-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.project-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.project-card p {
  color: #334155;
}

.project-type {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.pill-list {
  display: flex;
  gap: 8px;
  margin-top: auto;
  padding-top: 18px;
  flex-wrap: wrap;
}

.pill-list span {
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--blue-dark);
  background: #dbeafe;
  font-size: 13px;
  font-weight: 700;
}

.github-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 18px;
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #eff6ff;
}

.github-cta p {
  margin: 0;
  color: #334155;
}

.section-heading {
  max-width: 700px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: uppercase;
}

h2 {
  margin-top: 0;
  font-size: 30px;
  letter-spacing: -0.03em;
}

h3 {
  margin-top: 0;
  font-size: 21px;
}

p {
  line-height: 1.8;
}

.timeline-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 30px;
  padding: 34px;
}

.timeline-date {
  width: fit-content;
  height: fit-content;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--blue-dark);
  background: #dbeafe;
  font-size: 14px;
  font-weight: 800;
}

.timeline-content p {
  margin-top: 8px;
  color: #334155;
}

.work-list {
  margin: 18px 0 0;
  padding-left: 20px;
  color: #334155;
  line-height: 1.8;
}

button {
  color: white;
  background: var(--blue);
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 18px 0 24px;
}

.contact-list a {
  width: fit-content;
  color: var(--blue);
  font-weight: 700;
}

.message {
  min-height: 28px;
  color: var(--blue);
  font-weight: 700;
}

footer {
  padding: 26px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 900px) {
  .intro-card,
  .split-card,
  .timeline-card {
    grid-template-columns: 1fr;
  }

  .grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .project-list {
    grid-template-columns: 1fr;
  }

  .github-cta {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 760px) {
  .nav,
  .links {
    flex-direction: column;
  }

  .nav {
    gap: 18px;
  }

  .hero-content {
    margin-top: 90px;
  }

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

  .card,
  .timeline-card {
    padding: 26px;
  }
}

/* Infra hacker theme overrides */
:root {
  --bg: #020617;
  --card: rgba(15, 23, 42, 0.78);
  --text: #e5f0ff;
  --muted: #94a3b8;
  --line: rgba(148, 163, 184, 0.2);
  --blue: #38bdf8;
  --blue-dark: #22d3ee;
  --green: #34d399;
  --violet: #a78bfa;
  --panel: rgba(2, 6, 23, 0.82);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
}

body {
  position: relative;
  overflow-x: hidden;
  font-family: "IBM Plex Sans", Arial, sans-serif;
  background:
    radial-gradient(circle at 16% 18%, rgba(56, 189, 248, 0.16), transparent 28%),
    radial-gradient(circle at 82% 10%, rgba(167, 139, 250, 0.18), transparent 24%),
    linear-gradient(180deg, #020617 0%, #07111f 42%, #020617 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 88%);
}

a,
button {
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.hero {
  min-height: 100vh;
  padding: 24px;
  background: transparent;
}

.nav {
  position: sticky;
  top: 18px;
  z-index: 10;
  padding: 14px 18px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 999px;
  background: rgba(2, 6, 23, 0.72);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.logo,
.tag,
.eyebrow,
.terminal-card,
.timeline-date,
.project-type,
.pill-list span {
  font-family: "JetBrains Mono", Consolas, monospace;
}

.logo {
  color: #f8fafc;
}

.logo span {
  color: var(--green);
}

.links a {
  color: #cbd5e1;
}

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

.lang-toggle {
  padding: 9px 13px;
  color: #cbd5e1;
  border: 1px solid rgba(52, 211, 153, 0.24);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.72);
  box-shadow: none;
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 13px;
}

.lang-toggle:hover {
  color: #020617;
  background: linear-gradient(135deg, var(--green), var(--blue));
}

.hero-content {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 46px;
  align-items: center;
  max-width: 1120px;
  min-height: calc(100vh - 110px);
  margin: 0 auto;
  text-align: left;
}

.hero-copy {
  padding-top: 28px;
}

.tag {
  color: var(--green);
  border-color: rgba(52, 211, 153, 0.28);
  background: rgba(52, 211, 153, 0.08);
}

h1 {
  max-width: 760px;
  color: #f8fafc;
  font-size: clamp(46px, 7vw, 82px);
  letter-spacing: -0.07em;
}

h2,
h3 {
  color: #f8fafc;
}

.intro {
  max-width: 680px;
  margin: 0;
  color: #cbd5e1;
}

.buttons {
  justify-content: flex-start;
}

.button,
button {
  border: 1px solid rgba(148, 163, 184, 0.24);
  box-shadow: 0 10px 30px rgba(2, 132, 199, 0.16);
}

.primary,
.blue,
button {
  color: #020617;
  background: linear-gradient(135deg, var(--green), var(--blue));
}

.secondary {
  color: #dbeafe;
  background: rgba(15, 23, 42, 0.62);
}

.button:hover,
button:hover {
  border-color: rgba(52, 211, 153, 0.7);
  box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.1), 0 16px 42px rgba(56, 189, 248, 0.2);
}

.lang-toggle,
.lang-toggle:focus {
  padding: 9px 13px;
  color: #cbd5e1;
  border: 1px solid rgba(52, 211, 153, 0.24);
  background: rgba(15, 23, 42, 0.72);
  box-shadow: none;
}

.lang-toggle:hover {
  color: #020617;
  background: linear-gradient(135deg, var(--green), var(--blue));
  box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.1);
}

.hero-meta {
  justify-content: flex-start;
}

.hero-meta span {
  color: #cbd5e1;
  border-color: rgba(56, 189, 248, 0.22);
  background: rgba(15, 23, 42, 0.62);
}

.terminal-card {
  overflow: hidden;
  border: 1px solid rgba(56, 189, 248, 0.24);
  border-radius: 24px;
  background: rgba(2, 6, 23, 0.88);
  box-shadow: 0 0 0 1px rgba(52, 211, 153, 0.08), 0 30px 90px rgba(0, 0, 0, 0.42);
}

.terminal-top {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.14);
  background: rgba(15, 23, 42, 0.9);
}

.terminal-top span {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: #ef4444;
}

.terminal-top span:nth-child(2) {
  background: #f59e0b;
}

.terminal-top span:nth-child(3) {
  background: var(--green);
}

.terminal-top p {
  margin: 0 0 0 10px;
  color: #94a3b8;
  font-size: 13px;
}

.terminal-body {
  padding: 24px;
}

.terminal-body p {
  margin: 18px 0 8px;
  color: #94a3b8;
  font-size: 14px;
}

.terminal-body p:first-child {
  margin-top: 0;
}

.terminal-body p span {
  color: var(--green);
}

.terminal-body strong,
.terminal-body code {
  display: block;
  color: #e2e8f0;
  font-size: 15px;
  line-height: 1.7;
}

.terminal-body code {
  color: var(--blue);
  white-space: normal;
}

.terminal-body .success {
  color: var(--green);
}

main {
  padding-top: 80px;
}

.card,
.item,
.timeline-card,
.project-card {
  border-color: rgba(148, 163, 184, 0.16);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.86), rgba(15, 23, 42, 0.62));
  backdrop-filter: blur(16px);
}

.intro-card {
  border-color: rgba(52, 211, 153, 0.22);
}

.eyebrow,
.project-type {
  color: var(--green);
}

p,
.timeline-content p,
.work-list,
.project-card p,
.github-cta p {
  color: #b6c2d3;
}

.grid {
  grid-template-columns: repeat(4, 1fr);
}

.item,
.project-card {
  position: relative;
  overflow: hidden;
}

.item::before,
.project-card::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), transparent 42%);
}

.timeline-card {
  border-color: rgba(56, 189, 248, 0.24);
}

.timeline-date {
  color: #022c22;
  background: linear-gradient(135deg, var(--green), var(--blue));
}

.work-list li::marker {
  color: var(--green);
}

.project-list {
  grid-template-columns: repeat(2, 1fr);
}

.pill-list span {
  color: #bef264;
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.18);
}

.github-cta {
  border-color: rgba(56, 189, 248, 0.18);
  background: rgba(2, 6, 23, 0.5);
}

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

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

.message {
  color: var(--green);
}

footer {
  color: #64748b;
}

@media (max-width: 980px) {
  .hero-content {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 72px 0 28px;
  }

  .grid,
  .project-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .nav {
    position: static;
    border-radius: 24px;
  }

  .lang-toggle {
    width: 100%;
  }

  .hero-content {
    padding-top: 54px;
  }

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

  .github-cta {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}