:root {
  color-scheme: dark;
  --scroll-progress: 0;
  --bg-grid-x: 0px;
  --bg-grid-y: 0px;
  --bg-grid-x-2: 0px;
  --bg-grid-y-2: 0px;
  --scene-a: #64cbb8;
  --scene-b: #8aa4d6;
  --scene-c: #d77b91;
  --scene-angle: 128deg;
  --scene-drift-x: 0vw;
  --scene-drift-y: 0vh;
  --scene-rotate: 0deg;
  --scene-opacity: 0.25;
  --bg: #08090d;
  --bg-2: #101217;
  --ink: #f5f7fb;
  --muted: #aeb6c8;
  --soft: #768094;
  --line: rgba(245, 247, 251, 0.14);
  --line-strong: rgba(245, 247, 251, 0.28);
  --panel: rgba(12, 15, 23, 0.68);
  --panel-strong: rgba(14, 18, 28, 0.86);
  --accent: #75d0bd;
  --accent-2: #8ea7dc;
  --accent-3: #d77b91;
  --accent-4: #d8bb72;
  --shadow: 0 18px 46px rgba(0, 0, 0, 0.26);
  --max: 1180px;
  --radius: 8px;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f2f5f7;
  --bg-2: #ffffff;
  --ink: #11131a;
  --muted: #4d5668;
  --soft: #7c879b;
  --line: rgba(17, 19, 26, 0.13);
  --line-strong: rgba(17, 19, 26, 0.28);
  --panel: rgba(255, 255, 255, 0.64);
  --panel-strong: rgba(255, 255, 255, 0.9);
  --accent: #137c6d;
  --accent-2: #4f68a8;
  --accent-3: #9a4259;
  --accent-4: #8a6c26;
  --shadow: 0 18px 46px rgba(17, 19, 26, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(128deg, color-mix(in srgb, var(--scene-b) 5%, transparent), transparent 42%),
    linear-gradient(244deg, color-mix(in srgb, var(--scene-a) 4%, transparent), transparent 48%),
    var(--bg);
  background-size: 36px 36px, 36px 36px, auto, auto, auto;
  background-position:
    var(--bg-grid-x) var(--bg-grid-y),
    var(--bg-grid-x-2) var(--bg-grid-y-2),
    center,
    center,
    center;
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.58;
  letter-spacing: 0;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

#fluid-canvas {
  position: fixed;
  inset: 0;
  z-index: 1;
  width: 100vw;
  height: 100vh;
  opacity: 0.58;
  pointer-events: none;
}

.scene-backdrop {
  position: fixed;
  inset: -18vh -14vw;
  z-index: 0;
  pointer-events: none;
  opacity: var(--scene-opacity);
  background:
    linear-gradient(
      var(--scene-angle),
      color-mix(in srgb, var(--scene-a) 13%, transparent) 0 15%,
      transparent 46%
    ),
    linear-gradient(
      calc(var(--scene-angle) + 78deg),
      transparent 0 20%,
      color-mix(in srgb, var(--scene-b) 12%, transparent) 44%,
      transparent 72%
    ),
    linear-gradient(
      calc(var(--scene-angle) - 112deg),
      transparent 0 36%,
      color-mix(in srgb, var(--scene-c) 9%, transparent) 60%,
      transparent 82%
    ),
    repeating-linear-gradient(
      calc(var(--scene-angle) + 12deg),
      rgba(255, 255, 255, 0.026) 0 1px,
      transparent 1px 32px
    );
  filter: saturate(0.82) blur(0.2px);
  transform: translate3d(var(--scene-drift-x), var(--scene-drift-y), 0) rotate(var(--scene-rotate)) scale(1.02);
  transform-origin: 56% 42%;
  will-change: transform, opacity, background;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.12;
  background-image:
    linear-gradient(115deg, transparent 0 42%, rgba(255, 255, 255, 0.08) 43%, transparent 44%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 4px);
  mix-blend-mode: overlay;
}

.progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 80;
  width: 100%;
  height: 3px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent-4));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 70;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 68px;
  padding: 0 clamp(1rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 74%, transparent);
  backdrop-filter: blur(14px);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  width: fit-content;
  text-decoration: none;
}

.brand-mark span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.72rem;
  font-weight: 900;
}

.brand-mark strong {
  font-size: 0.92rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  padding: 0.32rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 31px;
  padding: 0 0.74rem;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 750;
  transition: color 160ms ease, background 160ms ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--bg);
  background: var(--ink);
}

.header-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.icon-link {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.icon-link:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
  background: var(--panel-strong);
}

.icon-link svg {
  width: 18px;
  height: 18px;
}

main,
footer {
  position: relative;
  z-index: 2;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.54fr);
  grid-template-rows: auto auto;
  gap: clamp(1rem, 4vw, 3rem);
  max-width: var(--max);
  min-height: calc(86svh - 68px);
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 4vw, 2rem) clamp(2rem, 5vw, 4rem);
  align-items: end;
}

.hero::before {
  content: none;
}

.hero-meta {
  grid-row: 1 / span 2;
  align-self: center;
  max-width: 760px;
}

.eyebrow,
.section-kicker,
.section-heading p {
  margin: 0 0 0.78rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.hero h1 {
  margin: 0;
  font-size: clamp(3.8rem, 12vw, 8.8rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.hero-subtitle {
  margin: 0.92rem 0 0;
  color: var(--accent-4);
  font-size: clamp(1.24rem, 3.1vw, 2.5rem);
  font-weight: 900;
  line-height: 1.02;
}

.hero-lede {
  max-width: 600px;
  margin: 1.2rem 0 0;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.38vw, 1.16rem);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 0.95rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: var(--ink);
  background: var(--panel-strong);
}

.button.primary {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--bg);
}

.signal-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  align-self: end;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--line-strong);
  overflow: hidden;
}

.signal-board div {
  min-height: 110px;
  padding: 0.95rem;
  background: color-mix(in srgb, var(--bg-2) 90%, transparent);
}

.signal-board span {
  display: block;
  color: var(--soft);
  font-size: 0.72rem;
  font-weight: 850;
  text-transform: uppercase;
}

.signal-board strong {
  display: block;
  margin-top: 0.48rem;
  font-size: clamp(1rem, 2vw, 1.32rem);
  line-height: 1.12;
}

.profile-panel {
  align-self: start;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--line-strong);
  overflow: hidden;
}

.profile-panel div {
  padding: 1rem;
  background: color-mix(in srgb, var(--bg-2) 88%, transparent);
}

.profile-panel span {
  display: block;
  color: var(--soft);
  font-size: 0.72rem;
  font-weight: 850;
}

.profile-panel strong {
  display: block;
  margin-top: 0.38rem;
  color: var(--ink);
  font-size: 0.92rem;
  line-height: 1.35;
}

.ai-fit-section,
.proof-strip,
.work-section,
.skills-section,
.experience-section,
.contact-section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3.2rem, 7vw, 6rem) clamp(1rem, 4vw, 2rem);
}

.proof-strip {
  display: grid;
  grid-template-columns: 0.4fr 0.8fr;
  gap: clamp(1.2rem, 4vw, 3rem);
  align-items: start;
  border-top: 1px solid var(--line-strong);
}

.ai-fit-section {
  border-top: 1px solid var(--line-strong);
}

.ai-focus-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--line-strong);
  overflow: hidden;
}

.resume-signal-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  margin-top: 1rem;
  padding: clamp(1rem, 2.5vw, 1.35rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--bg-2) 86%, transparent);
}

.resume-signal-panel p {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.resume-signal-panel h3 {
  margin: 0;
  font-size: clamp(1.08rem, 2.3vw, 1.55rem);
  line-height: 1.14;
}

.resume-signal-panel ul {
  display: grid;
  gap: 0.62rem;
  margin: 0;
  padding-left: 1.05rem;
}

.resume-signal-panel li {
  color: var(--muted);
  font-size: 0.9rem;
}

.ai-focus-card {
  min-height: 254px;
  padding: 1rem;
  background: color-mix(in srgb, var(--bg-2) 88%, transparent);
  transition:
    transform 220ms ease,
    background 220ms ease,
    border-color 220ms ease;
}

.ai-focus-card:hover {
  transform: translateY(-2px);
  background: color-mix(in srgb, var(--bg-2) 96%, transparent);
}

.ai-focus-card > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--accent-4);
  font-size: 0.78rem;
  font-weight: 950;
}

.ai-focus-card h3 {
  margin: 1rem 0 0;
  font-size: 1.08rem;
  line-height: 1.15;
}

.ai-focus-card p {
  margin: 0.72rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.ai-focus-card div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.38rem;
  margin-top: 1rem;
}

.ai-focus-card em {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 0.55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.72rem;
  font-style: normal;
  font-weight: 800;
}

.proof-strip h2,
.section-heading h2,
.contact-section h2 {
  margin: 0;
  font-size: clamp(1.72rem, 4vw, 3.42rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.metric-row {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--line-strong);
  overflow: hidden;
}

.metric-row article {
  min-height: 126px;
  padding: 1rem;
  background: var(--panel-strong);
}

.metric-row strong {
  display: block;
  color: var(--accent-4);
  font-size: clamp(1.55rem, 3vw, 2.62rem);
  line-height: 1;
}

.metric-row span {
  display: block;
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
}

.section-heading {
  display: grid;
  grid-template-columns: 0.36fr minmax(0, 0.82fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: start;
  margin-bottom: 1.4rem;
}

.project-stack {
  display: grid;
  gap: 0.9rem;
}

.project-card {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--panel-strong);
  overflow: hidden;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.project-card:nth-child(even) {
  margin-left: clamp(0rem, 8vw, 7rem);
}

.project-card:hover,
.project-card.is-hovered {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent-2) 60%, var(--line-strong));
  background: color-mix(in srgb, var(--bg-2) 94%, transparent);
}

.project-index {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0.75rem;
  border-right: 1px solid var(--line);
  color: var(--soft);
  font-size: 0.82rem;
  font-weight: 950;
}

.logo-frame {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--bg-2) 82%, transparent);
  overflow: hidden;
}

.logo-frame img {
  display: block;
  width: 78%;
  height: 78%;
  object-fit: contain;
}

.project-body {
  padding: clamp(1rem, 2.4vw, 1.45rem);
}

.project-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.project-head h3 {
  margin: 0;
  font-size: clamp(1.18rem, 2.4vw, 2rem);
  line-height: 1.05;
}

.project-head p {
  margin: 0.3rem 0 0;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 850;
}

.project-head time {
  flex: 0 0 auto;
  color: var(--accent-3);
  font-size: 0.78rem;
  font-weight: 900;
}

.project-summary {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.project-card ul {
  margin: 0.9rem 0 0;
  padding-left: 1.1rem;
}

.project-card li,
.timeline li {
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.tech-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
  margin-top: 1rem;
}

.tech-row span,
.skill-group span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 0.62rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
}

.skill-matrix {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.skill-group {
  min-height: 176px;
  padding: 1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--bg-2) 84%, transparent);
}

.skill-group:nth-child(2n) {
  transform: translateY(1.6rem);
}

.skill-group h3 {
  margin: 0 0 0.82rem;
  font-size: 1rem;
}

.skill-group div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
}

.timeline {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--line-strong);
  overflow: hidden;
}

.timeline article {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem;
  background: var(--panel-strong);
}

.timeline-side {
  display: grid;
  align-content: start;
  gap: 0.7rem;
}

.timeline time {
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 900;
}

.timeline h3 {
  margin: 0;
  font-size: 1.08rem;
}

.timeline p {
  margin: 0.25rem 0 0.75rem;
  color: var(--accent-4);
  font-size: 0.88rem;
  font-weight: 850;
}

.timeline ul {
  margin: 0;
  padding-left: 1.1rem;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(280px, 0.55fr);
  gap: clamp(1.2rem, 5vw, 3rem);
  align-items: center;
  margin-bottom: 3rem;
  border-top: 1px solid var(--line-strong);
}

.contact-section span {
  display: block;
  margin-top: 0.82rem;
  color: var(--muted);
}

.contact-actions {
  margin: 0;
  justify-content: flex-end;
}

footer {
  padding: 1.4rem 1rem 2rem;
  color: var(--soft);
  text-align: center;
  font-size: 0.8rem;
}

.reveal {
  opacity: 0;
  transform: translate3d(0, 14px, 0);
  transition:
    opacity 460ms ease,
    transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.hero .reveal {
  opacity: 1;
  transform: none;
}

@media (max-width: 1040px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
  }

  .site-nav {
    justify-self: center;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-meta {
    grid-row: auto;
  }

  .signal-board,
  .profile-panel {
    max-width: 680px;
  }

  .metric-row,
  .ai-focus-grid,
  .skill-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .skill-group:nth-child(2n) {
    transform: none;
  }
}

@media (max-width: 760px) {
  body {
    font-size: 14px;
  }

  #fluid-canvas {
    opacity: 0.42;
  }

  .site-header {
    grid-template-columns: 1fr auto;
    min-height: 60px;
  }

  .brand-mark strong,
  .site-nav {
    display: none;
  }

  .hero {
    padding-top: 2.6rem;
  }

  .eyebrow {
    font-size: 0.62rem;
    line-height: 1.35;
    letter-spacing: 0.1em;
  }

  .hero h1 {
    font-size: clamp(4rem, 24vw, 7rem);
  }

  .reveal {
    transform: translate3d(0, 14px, 0);
  }

  .signal-board,
  .proof-strip,
  .section-heading,
  .ai-focus-grid,
  .resume-signal-panel,
  .metric-row,
  .skill-matrix,
  .timeline article,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .metric-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-card,
  .project-card:nth-child(even) {
    grid-template-columns: 1fr;
    margin-left: 0;
  }

  .project-index {
    flex-direction: row;
    justify-content: space-between;
    padding: 0.8rem 1rem;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .project-head {
    display: block;
  }

  .project-head time {
    display: block;
    margin-top: 0.5rem;
  }

  .contact-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 460px) {
  .hero-actions,
  .contact-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

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

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

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

  #fluid-canvas {
    display: none;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}