:root {
  color-scheme: dark;
  --bg: #030407;
  --panel: rgba(255, 255, 255, 0.055);
  --panel-strong: rgba(255, 255, 255, 0.09);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f4f7ff;
  --muted: #99a6ba;
  --cyan: #62f7ff;
  --green: #9dff72;
  --red: #ff657f;
  --violet: #be8cff;
  --amber: #ffbf57;
  --section-accent: var(--cyan);
  --max: 1180px;
  --scroll-progress: 0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 28%), color-mix(in srgb, var(--section-accent), transparent 88%), transparent 25rem),
    radial-gradient(circle at 74% 18%, rgba(190, 140, 255, 0.1), transparent 30rem),
    linear-gradient(180deg, #030407 0%, #080b10 52%, #030407 100%);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

body::before,
body::after {
  content: "";
  inset: 0;
  pointer-events: none;
  position: fixed;
  z-index: 0;
}

body::before {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-position: var(--grid-x, 0px) var(--grid-y, 0px);
  background-size: 76px 76px;
  mask-image: linear-gradient(180deg, transparent 0%, #000 14%, #000 86%, transparent 100%);
  opacity: 0.5;
}

body::after {
  background: linear-gradient(115deg, transparent 0 58%, rgba(255, 255, 255, 0.075) 60%, transparent 63% 100%);
  opacity: 0.38;
  transform: translateY(var(--light-y, 0px));
}

body[data-section="projects"] {
  --section-accent: var(--green);
}

body[data-section="knowledge"] {
  --section-accent: var(--violet);
}

body[data-section="contact"] {
  --section-accent: var(--red);
}

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

.cursor-glow,
.cursor-ring,
.cursor-dot,
.scroll-progress {
  pointer-events: none;
  position: fixed;
}

.cursor-glow {
  background: radial-gradient(
    520px circle at var(--mouse-x, 50%) var(--mouse-y, 40%),
    color-mix(in srgb, var(--section-accent), transparent 84%),
    transparent 64%
  );
  inset: 0;
  z-index: 1;
}

.cursor-ring,
.cursor-dot {
  border-radius: 50%;
  left: 0;
  top: 0;
  transform: translate3d(var(--mouse-x, 50vw), var(--mouse-y, 50vh), 0) translate(-50%, -50%);
  z-index: 9999;
}

.cursor-ring {
  background: color-mix(in srgb, var(--section-accent), transparent 92%);
  border: 2px solid color-mix(in srgb, var(--section-accent), white 18%);
  box-shadow: 0 0 28px color-mix(in srgb, var(--section-accent), transparent 35%);
  height: var(--cursor-size, 34px);
  transition: height 160ms ease, width 160ms ease;
  width: var(--cursor-size, 34px);
}

.cursor-dot {
  background: #fff;
  box-shadow: 0 0 14px #fff, 0 0 26px var(--section-accent);
  height: 7px;
  width: 7px;
}

body.cursor-active {
  --cursor-size: 58px;
}

body.cursor-down {
  --cursor-size: 24px;
}

.scroll-progress {
  background: linear-gradient(90deg, var(--cyan), var(--green), var(--red));
  box-shadow: 0 0 24px color-mix(in srgb, var(--section-accent), transparent 38%);
  height: 3px;
  left: 0;
  top: 0;
  transform: scaleX(var(--scroll-progress));
  transform-origin: left;
  width: 100%;
  z-index: 80;
}

.site-header {
  align-items: center;
  backdrop-filter: blur(18px);
  background: rgba(4, 6, 10, 0.72);
  border: 1px solid var(--line);
  border-radius: 999px;
  display: flex;
  justify-content: space-between;
  left: 50%;
  max-width: min(var(--max), calc(100% - 32px));
  padding: 10px 12px 10px 16px;
  position: fixed;
  top: 16px;
  transform: translateX(-50%);
  width: 100%;
  z-index: 70;
}

body.is-scrolled .site-header {
  background: rgba(4, 6, 10, 0.88);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.26);
}

.brand {
  align-items: center;
  display: inline-flex;
  font-size: 0.92rem;
  font-weight: 850;
  gap: 10px;
}

.brand-mark {
  align-items: center;
  background: linear-gradient(135deg, var(--section-accent), var(--green));
  border-radius: 50%;
  color: #020407;
  display: inline-flex;
  height: 34px;
  justify-content: center;
  width: 34px;
}

.site-nav {
  align-items: center;
  display: flex;
  gap: 6px;
}

.site-nav a {
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
  padding: 10px 14px;
  transition: color 180ms ease, background 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  outline: none;
}

.nav-toggle {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line);
  border-radius: 999px;
  display: none;
  height: 40px;
  padding: 0;
  position: relative;
  width: 44px;
}

.nav-toggle span {
  background: var(--text);
  border-radius: 999px;
  height: 2px;
  left: 13px;
  position: absolute;
  transition: transform 180ms ease, top 180ms ease;
  width: 16px;
}

.nav-toggle span:first-child {
  top: 15px;
}

.nav-toggle span:last-child {
  top: 23px;
}

.nav-open .nav-toggle span:first-child {
  top: 19px;
  transform: rotate(45deg);
}

.nav-open .nav-toggle span:last-child {
  top: 19px;
  transform: rotate(-45deg);
}

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

.page-section {
  padding: clamp(92px, 12vw, 160px) 24px;
  position: relative;
}

.hero-section {
  min-height: 100svh;
  padding-top: 128px;
}

.section-shell {
  margin-inline: auto;
  max-width: var(--max);
  width: 100%;
}

.hero-layout,
.split-layout {
  align-items: center;
  display: grid;
  gap: clamp(28px, 5vw, 72px);
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.78fr);
}

.section-kicker {
  color: var(--section-accent);
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.14em;
  margin: 0 0 16px;
  text-transform: uppercase;
}

.notice-pill {
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #d8e3f4;
  display: inline-flex;
  font-size: 0.86rem;
  font-weight: 850;
  gap: 10px;
  margin-bottom: 26px;
  min-height: 40px;
  padding: 0 14px;
}

.notice-pill span {
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(157, 255, 114, 0.72);
  height: 8px;
  width: 8px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(4rem, 11vw, 7.8rem);
  letter-spacing: 0;
  line-height: 0.9;
  margin-bottom: 24px;
  overflow-wrap: anywhere;
}

h2 {
  font-size: clamp(2.3rem, 7vw, 5.8rem);
  letter-spacing: 0;
  line-height: 0.94;
  margin-bottom: 22px;
}

h3 {
  letter-spacing: 0;
}

.lead,
.section-heading p,
.text-card p,
.case-card p,
.stack-card p {
  color: var(--muted);
  line-height: 1.7;
}

.lead {
  color: #d8e2f2;
  font-size: clamp(1rem, 2vw, 1.22rem);
  max-width: 520px;
}

.hero-actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  align-items: center;
  border-radius: 999px;
  display: inline-flex;
  font-size: 0.92rem;
  font-weight: 900;
  justify-content: center;
  min-height: 48px;
  overflow: hidden;
  padding: 0 22px;
  position: relative;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
  will-change: transform;
}

.button::before {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28), transparent);
  content: "";
  height: 100%;
  left: -120%;
  position: absolute;
  top: 0;
  transform: skewX(-18deg);
  transition: left 520ms ease;
  width: 80%;
}

.button:hover::before {
  left: 140%;
}

.button-primary {
  background: linear-gradient(135deg, var(--section-accent), var(--green));
  box-shadow: 0 14px 44px color-mix(in srgb, var(--section-accent), transparent 72%);
  color: #031014;
}

.button-ghost {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line);
  color: var(--text);
}

.button:hover,
.button:focus-visible {
  box-shadow: 0 18px 60px color-mix(in srgb, var(--section-accent), transparent 68%);
  outline: none;
}

.profile-panel,
.quick-card,
.terminal-card,
.text-card,
.case-card,
.stack-card,
.contact-shell {
  backdrop-filter: blur(18px);
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.34);
}

.profile-panel {
  overflow: hidden;
  padding: clamp(24px, 4vw, 38px);
  transform-style: preserve-3d;
}

.profile-avatar {
  align-items: center;
  background: linear-gradient(135deg, var(--section-accent), var(--green));
  border-radius: 24px;
  color: #020407;
  display: inline-flex;
  font-size: 2.4rem;
  font-weight: 950;
  height: 86px;
  justify-content: center;
  margin-bottom: 24px;
  width: 86px;
}

.profile-panel p {
  color: var(--muted);
  font-weight: 800;
}

.profile-panel h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.02;
}

.profile-stats {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 30px;
}

.profile-stats div {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 14px;
}

.profile-stats strong {
  display: block;
  font-size: 1.45rem;
}

.profile-stats span {
  color: var(--muted);
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
  margin-top: 4px;
}

.quick-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 44px;
}

.quick-card {
  min-height: 104px;
  padding: 22px;
  transition: border-color 180ms ease, transform 180ms ease;
}

.quick-card:hover {
  border-color: color-mix(in srgb, var(--section-accent), white 18%);
}

.quick-card span {
  color: var(--section-accent);
  display: block;
  font-size: 0.78rem;
  font-weight: 950;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.quick-card strong {
  display: block;
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.35;
}

.sticky-heading {
  align-self: start;
  position: sticky;
  top: 130px;
}

.about-stack {
  display: grid;
  gap: 16px;
}

.terminal-card {
  overflow: hidden;
  transform-style: preserve-3d;
}

.terminal-header {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 8px;
  padding: 14px 16px;
}

.terminal-header span {
  border-radius: 50%;
  height: 10px;
  width: 10px;
}

.terminal-header span:nth-child(1) {
  background: var(--red);
}

.terminal-header span:nth-child(2) {
  background: var(--amber);
}

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

.terminal-header strong {
  color: var(--muted);
  font-size: 0.82rem;
  margin-left: auto;
}

.terminal-card pre {
  color: #d9f7ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: clamp(0.84rem, 1.7vw, 0.96rem);
  line-height: 1.7;
  margin: 0;
  overflow-x: auto;
  padding: 24px;
}

.text-card {
  padding: 24px;
}

.text-card h3 {
  font-size: 1.45rem;
  margin-bottom: 0;
}

.project-heading {
  align-items: end;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  margin-bottom: 34px;
}

.case-list {
  display: grid;
  gap: 14px;
}

.case-card {
  align-items: center;
  display: grid;
  gap: 18px;
  grid-template-columns: 64px 110px 1fr;
  min-height: 108px;
  overflow: hidden;
  padding: 24px;
  position: relative;
  transform-style: preserve-3d;
}

.case-card::before {
  background:
    radial-gradient(circle at var(--card-x, 50%) var(--card-y, 50%), color-mix(in srgb, var(--accent), transparent 76%), transparent 36%),
    linear-gradient(90deg, color-mix(in srgb, var(--accent), transparent 90%), transparent 34%);
  content: "";
  inset: 0;
  opacity: 0.65;
  pointer-events: none;
  position: absolute;
  transition: opacity 180ms ease;
}

.case-card:hover::before {
  opacity: 1;
}

.case-card > * {
  position: relative;
  z-index: 1;
}

.case-index {
  color: var(--accent);
  font-size: 1.3rem;
  font-weight: 950;
}

.case-type {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 950;
  text-transform: uppercase;
}

.case-card h3 {
  font-size: clamp(1.2rem, 2.3vw, 1.65rem);
  line-height: 1.15;
  margin-bottom: 0;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tag-row span {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  color: #dfe8f7;
  font-size: 0.76rem;
  font-weight: 850;
  padding: 7px 10px;
}

.stack-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stack-card {
  min-height: 140px;
  padding: 24px;
}

.stack-card span {
  color: var(--section-accent);
  display: block;
  font-weight: 950;
  margin-bottom: 20px;
}

.stack-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0;
}

.stack-card.learning h3 {
  color: var(--amber);
}

.contact-section {
  overflow: hidden;
  text-align: center;
}

.marquee {
  color: rgba(255, 255, 255, 0.06);
  font-size: clamp(5rem, 18vw, 15rem);
  font-weight: 950;
  line-height: 0.8;
  margin-bottom: -26px;
  overflow: hidden;
  white-space: nowrap;
}

.marquee div {
  animation: marqueeMove 24s linear infinite;
  display: inline-flex;
  gap: 0.18em;
}

.contact-shell {
  margin-inline: auto;
  max-width: 900px;
  padding: clamp(32px, 7vw, 74px);
  position: relative;
}

.contact-shell .lead {
  margin-inline: auto;
}

.contact-links {
  justify-content: center;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  font-size: 0.86rem;
  gap: 18px;
  justify-content: space-between;
  margin-top: 72px;
  padding-top: 22px;
}

[data-reveal] {
  filter: blur(10px);
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 720ms ease, transform 720ms cubic-bezier(0.2, 0.84, 0.22, 1), filter 720ms ease;
}

[data-reveal].is-visible {
  filter: blur(0);
  opacity: 1;
  transform: translateY(0);
}

.site-header[data-reveal] {
  transform: translateX(-50%) translateY(22px);
  filter: blur(0);
}

.site-header[data-reveal].is-visible {
  transform: translateX(-50%) translateY(0);
}

[data-scroll-card] {
  --card-opacity: 1;
  --card-scale: 1;
  --card-y: 0px;
  transition: transform 120ms linear, opacity 120ms linear;
  will-change: transform, opacity;
}

[data-reveal][data-scroll-card] {
  opacity: 0;
  transform: translateY(34px) scale(0.985);
}

[data-reveal].is-visible[data-scroll-card],
[data-scroll-card]:not([data-reveal]) {
  opacity: var(--card-opacity, 1);
  transform: translateY(var(--card-y, 0px)) scale(var(--card-scale, 1));
}

@media (max-width: 980px) {
  .hero-layout,
  .split-layout {
    grid-template-columns: 1fr;
  }

  .sticky-heading {
    position: static;
  }

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

@media (max-width: 720px) {
  .site-header {
    border-radius: 24px;
    top: 10px;
  }

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

  .site-nav {
    background: rgba(5, 7, 10, 0.96);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.44);
    display: grid;
    left: 0;
    opacity: 0;
    padding: 8px;
    pointer-events: none;
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .nav-open .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 14px 16px;
  }

  .page-section {
    padding: 92px 18px;
  }

  .hero-section {
    padding-top: 112px;
  }

  h1 {
    font-size: clamp(3.4rem, 19vw, 6rem);
  }

  h2 {
    font-size: clamp(2.4rem, 14vw, 4.8rem);
  }

  .hero-actions,
  .contact-links {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .profile-stats,
  .quick-grid,
  .stack-grid {
    grid-template-columns: 1fr;
  }

  .case-card {
    align-items: start;
    grid-template-columns: 44px 1fr;
  }

  .case-type {
    justify-self: end;
  }

  .case-card div {
    grid-column: 1 / -1;
  }

  .project-heading {
    align-items: start;
    display: block;
  }

  .terminal-card pre {
    padding: 18px;
  }

  .site-footer {
    align-items: center;
    flex-direction: column;
    text-align: center;
  }
}

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

  .cursor-glow,
  .cursor-ring,
  .cursor-dot {
    display: none;
  }
}

@media (pointer: coarse) {
  .cursor-ring,
  .cursor-dot {
    display: none;
  }
}

@keyframes marqueeMove {
  to {
    transform: translateX(-50%);
  }
}