:root {
  --bg: #070b14;
  --card: #0d1424;
  --line: #1e2738;
  --tx: #f4f7fb;
  --mu: #8d9ab0;
  --ac: #22d3ee;
  --ac2: #3b82f6;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  background: var(--bg);
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--tx);
  font: 400 16px/1.65 Manrope, system-ui, sans-serif;
  overflow-x: hidden;
}
h1, h2, h3, p, ul {
  margin: 0;
}
ul {
  padding: 0;
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
}
:focus-visible {
  outline: 2px solid var(--ac);
  outline-offset: 3px;
  border-radius: 4px;
}
.w {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 22px;
}
.mono {
  font-family: var(--mono);
}
header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}
.logo {
  font-weight: 800;
  font-size: 18px;
}
.logo i {
  font-style: normal;
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  margin-right: 8px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--ac), var(--ac2));
  color: #06101c;
}
nav ul {
  display: flex;
  gap: 26px;
}
nav a {
  color: var(--mu);
  font-size: 15px;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
nav a:hover {
  color: var(--tx);
}
nav a.on {
  color: var(--tx);
  border-color: var(--ac);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid var(--line);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  cursor: pointer;
  background: none;
  color: var(--tx);
  font-family: inherit;
}
.btn:hover {
  transform: translateY(-2px);
  border-color: var(--ac);
}
.btn.p {
  background: linear-gradient(135deg, var(--ac), var(--ac2));
  color: #06101c;
  border: 0;
}
.btn.p:hover {
  box-shadow: 0 8px 28px rgba(34, 211, 238, 0.28);
}
.burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: none;
  color: var(--tx);
  cursor: pointer;
}
.burger span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  margin: 4px auto;
  transition: 0.25s;
}
.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}
.hero {
  position: relative;
  padding: 72px 0 80px;
  background-image: linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: center top;
  -webkit-mask-image: none;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      60% 60% at 75% 30%,
      rgba(34, 211, 238, 0.14),
      transparent 70%
    ),
    linear-gradient(transparent 55%, var(--bg));
  pointer-events: none;
}
.hero .w {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 500 12px var(--mono);
  letter-spacing: 0.04em;
  padding: 7px 14px;
  border: 1px solid rgba(34, 211, 238, 0.4);
  border-radius: 99px;
  color: var(--ac);
  background: rgba(34, 211, 238, 0.06);
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ac);
  animation: pl 2s infinite;
}
@keyframes pl {
  50% {
    opacity: 0.3;
    transform: scale(0.7);
  }
}
h1 {
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 22px 0 14px;
}
.sub {
  color: var(--ac);
  font-weight: 700;
  font-size: clamp(15px, 2vw, 19px);
}
.lead {
  color: var(--mu);
  max-width: 52ch;
  margin: 18px 0 28px;
}
.row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.soc {
  display: flex;
  gap: 22px;
  margin-top: 28px;
  font-size: 14px;
  color: var(--mu);
}
.soc a:hover {
  color: var(--ac);
}
.term {
  position: relative;
  background: rgba(13, 20, 36, 0.92);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 0 60px rgba(34, 211, 238, 0.08);
}
.term .hd {
  display: flex;
  gap: 7px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  font: 12px var(--mono);
  color: var(--mu);
}
.term .hd b {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line);
}
.term .hd span {
  margin-left: 8px;
}
pre {
  margin: 0;
  padding: 20px;
  font: 13.5px/1.8 var(--mono);
  color: #b9c6da;
  min-height: 272px;
  white-space: pre-wrap;
}
pre .ok {
  color: #34d399;
}
pre .ac {
  color: var(--ac);
}
.cur {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--ac);
  vertical-align: -2px;
  animation: bl 1s steps(2) infinite;
}
@keyframes bl {
  50% {
    opacity: 0;
  }
}
.chips {
  position: absolute;
  inset: -18px;
  pointer-events: none;
}
.chips span {
  position: absolute;
  font: 500 12px var(--mono);
  padding: 5px 11px;
  border-radius: 6px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--tx);
  animation: fl 6s ease-in-out infinite;
}
@keyframes fl {
  50% {
    transform: translateY(-8px);
  }
}
section {
  padding: 88px 0;
  position: relative;
}
.h2 {
  margin-bottom: 40px;
}
.h2 small {
  display: block;
  font: 500 13px var(--mono);
  color: var(--ac);
  margin-bottom: 10px;
}
h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.about {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: center;
}
.photo {
    aspect-ratio: 4 / 5;
    max-width: 360px;
    width: 100%;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: var(--card);
    position: relative;
    overflow: hidden;
}

.photo img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center top;
}
.about h3 {
  font-size: clamp(22px, 3vw, 30px);
  margin-bottom: 16px;
}
.about p {
  color: var(--mu);
  margin-bottom: 14px;
  max-width: 60ch;
}
.stats {
  display: flex;
  gap: 36px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.stats b {
  display: block;
  font-size: 30px;
  font-weight: 800;
  color: var(--ac);
}
.stats span {
  font-size: 14px;
  color: var(--mu);
}
.grid {
  display: grid;
  gap: 18px;
}
.g3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  transition: transform 0.25s, border-color 0.25s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 211, 238, 0.5);
}
.card h3 {
  font-size: 18px;
  margin-bottom: 14px;
  display: flex;
  gap: 10px;
  align-items: center;
}
.card h3 i {
  font-style: normal;
  color: var(--ac);
  font-family: var(--mono);
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tags span {
  font-size: 13px;
  padding: 4px 11px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  color: #c4cee0;
}
.tools {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
  margin-top: 40px;
}
.tools div {
  padding: 14px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  font: 500 13px var(--mono);
  color: var(--mu);
  transition: 0.2s;
}
.tools div:hover {
  color: var(--ac);
  border-color: var(--ac);
}
.proj {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 22px;
}
.pc {
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}
.thumb {
  height: 150px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 16px 20px;
  background: linear-gradient(135deg, #0f1c33, #0a1222);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      circle at var(--x, 80%) 0,
      rgba(34, 211, 238, 0.22),
      transparent 60%
    ),
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: auto, 24px 24px, 24px 24px;
}
.thumb b {
  position: relative;
  font: 800 46px/1 var(--mono);
  color: rgba(34, 211, 238, 0.85);
}
.thumb span {
  position: relative;
  font: 12px var(--mono);
  color: var(--mu);
}
.pb {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}
.pb h3 {
  font-size: 20px;
  margin: 0;
}
.pb p {
  color: var(--mu);
  font-size: 15px;
}
.pb .tags {
  margin-top: auto;
}
.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
.step {
  padding: 0 14px 0 0;
  position: relative;
}
.step::before {
  content: "";
  position: absolute;
  top: 19px;
  left: 44px;
  right: 8px;
  height: 2px;
  background: linear-gradient(90deg, var(--ac), var(--line));
}
.step:last-child::before {
  display: none;
}
.step b {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--ac);
  font: 700 13px var(--mono);
  color: var(--ac);
  background: var(--bg);
  position: relative;
  z-index: 1;
}
.step h3 {
  margin: 16px 0 6px;
  font-size: 18px;
}
.step p {
  color: var(--mu);
  font-size: 14px;
}
.cap {
  margin-top: 40px;
  font: 500 15px var(--mono);
  color: var(--ac);
}
.tl {
  border-left: 2px solid var(--line);
  margin-left: 6px;
}
.ti {
  position: relative;
  padding: 0 0 36px 32px;
}
.ti::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ac);
  box-shadow: 0 0 0 4px var(--bg), 0 0 14px var(--ac);
}
.ti small {
  font: 12px var(--mono);
  color: var(--ac);
}
.ti h3 {
  font-size: 21px;
  margin: 4px 0 4px;
}
.ti p {
  color: var(--mu);
  margin-bottom: 12px;
}
.ph {
  color: var(--mu);
  font-family: var(--mono);
  font-size: 14px;
}
.gh {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
}
.gh p {
  color: var(--mu);
  max-width: 48ch;
}
.act {
  display: grid;
  grid-template-columns: repeat(26, 1fr);
  gap: 4px;
}
.act i {
  aspect-ratio: 1;
  border-radius: 2px;
  background: var(--line);
}
.ct {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 40px;
}
.ct .cards {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}
.cc {
  display: flex;
  justify-content: space-between;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  transition: 0.2s;
}
.cc:hover {
  border-color: var(--ac);
}
.cc span {
  color: var(--mu);
  font-size: 14px;
  font-family: var(--mono);
}
form {
  display: grid;
  gap: 16px;
}
label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
}
input, textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--tx);
  font: inherit;
}
input:focus, textarea:focus {
  outline: 2px solid var(--ac);
  outline-offset: 1px;
  border-color: transparent;
}
.err {
  display: none;
  color: #fb7185;
  font-size: 13px;
  margin-top: 4px;
}
.bad .err {
  display: block;
}
.bad input, .bad textarea {
  border-color: #fb7185;
}
footer {
  border-top: 1px solid var(--line);
  padding: 36px 0;
}
.ft {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  color: var(--mu);
  font-size: 14px;
}
.ft b {
  color: var(--tx);
}
.ft nav {
  display: flex;
  gap: 20px;
}
#toast {
  position: fixed;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  transform: translate(-50%, 30px);
  background: var(--card);
  border: 1px solid var(--ac);
  padding: 12px 18px;
  border-radius: 8px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: 0.3s;
  z-index: 99;
  max-width: 90vw;
}
#toast.on {
  opacity: 1;
  transform: translate(-50%, 0);
}
.js .rv {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s, transform 0.7s;
}
.js .rv.in {
  opacity: 1;
  transform: none;
}
@media (max-width: 900px) {
  .hero .w, .about, .gh, .ct {
    grid-template-columns: 1fr;
  }
  .flow {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .step::before {
    display: none;
  }
  .chips {
    display: none;
  }
  .about {
    gap: 32px;
  }
}
@media (max-width: 820px) {
  .burger {
    display: block;
  }
  .cv {
    display: none;
  }
  nav ul {
    position: absolute;
    left: 0;
    right: 0;
    top: 64px;
    flex-direction: column;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 8px 22px 16px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
  }
  nav ul.open {
    max-height: 420px;
    opacity: 1;
    visibility: visible;
  }
  nav li a {
    display: block;
    padding: 14px 0;
    font-size: 17px;
  }
}
@media (max-width: 480px) {
  .proj, .g3 {
    grid-template-columns: 1fr;
  }
  section {
    padding: 64px 0;
  }
  .hero {
    padding: 44px 0 56px;
  }
  pre {
    font-size: 12px;
    padding: 16px;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
  .row {
    flex-direction: column;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
  html {
    scroll-behavior: auto;
  }
  .js .rv {
    opacity: 1;
    transform: none;
  }
}