@font-face {
  font-family: "Silkscreen";
  src: url("/assets/fonts/silkscreen.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

:root {
  --bg: #06060c;
  --glass: rgba(255, 255, 255, 0.045);
  --glass-strong: rgba(255, 255, 255, 0.075);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #eceaf6;
  --muted: #a09db8;
  --violet: #8b5cf6;
  --blue: #3b82f6;
  --cyan: #22d3ee;
  --glow-violet: rgba(139, 92, 246, 0.35);
  --radius: 18px;
  --max: 1120px;
  --pixel: "Silkscreen", Consolas, "Cascadia Mono", monospace;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 520px at 78% -8%, var(--glow-violet), transparent 70%),
    radial-gradient(700px 480px at 8% 18%, rgba(59, 130, 246, 0.18), transparent 70%),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
}

::selection {
  background: var(--violet);
  color: #fff;
}

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover {
  color: #fff;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

header.site {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(6, 6, 12, 0.6);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--pixel);
  font-size: 15px;
  color: var(--text);
  letter-spacing: 0.5px;
}

.brand img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  image-rendering: pixelated;
}

.brand:hover {
  color: #fff;
}

nav.main {
  display: flex;
  gap: 22px;
  align-items: center;
}

nav.main a {
  color: var(--muted);
  font-size: 14px;
}

nav.main a:hover {
  color: var(--text);
}

.lang-toggle {
  border: 1px solid var(--line-strong);
  background: var(--glass);
  color: var(--text);
  border-radius: 8px;
  padding: 4px 12px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.lang-toggle:hover {
  border-color: var(--violet);
  background: var(--glass-strong);
}

.hero {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  align-items: center;
  gap: 48px;
  padding-top: 104px;
  padding-bottom: 96px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--pixel);
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 1px;
  margin: 0 0 22px;
  padding: 6px 12px;
  border: 1px solid rgba(34, 211, 238, 0.3);
  background: rgba(34, 211, 238, 0.06);
  border-radius: 8px;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: blink 1.6s steps(2, start) infinite;
}

@keyframes blink {
  to {
    visibility: hidden;
  }
}

.hero h1 {
  font-size: clamp(30px, 5.6vw, 58px);
  line-height: 1.15;
  margin: 0 0 22px;
  letter-spacing: -0.5px;
  background: linear-gradient(180deg, #ffffff 30%, #c9c3ee 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero h1 .accent {
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 600px;
  margin: 0 0 34px;
}

.actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  font-weight: 600;
  color: var(--text);
  background: var(--glass);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.08);
  transition: transform 0.12s, box-shadow 0.12s, border-color 0.2s;
}

.btn:hover {
  color: #fff;
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(255, 255, 255, 0.1);
  border-color: var(--violet);
}

.btn.primary {
  background: linear-gradient(135deg, var(--violet), var(--blue));
  border-color: transparent;
  color: #fff;
  box-shadow: 4px 4px 0 var(--cyan);
}

.btn.primary:hover {
  box-shadow: 6px 6px 0 var(--cyan);
}

.avatar-frame {
  justify-self: center;
  position: relative;
  padding: 14px;
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(139, 92, 246, 0.35), rgba(34, 211, 238, 0.2));
  box-shadow: 0 0 60px var(--glow-violet), 0 0 120px rgba(34, 211, 238, 0.12);
  animation: float 6s ease-in-out infinite;
}

.avatar-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  pointer-events: none;
}

.avatar {
  display: block;
  width: 280px;
  height: 280px;
  border-radius: 18px;
  image-rendering: pixelated;
}

.avatar-tag {
  position: absolute;
  left: 50%;
  bottom: -16px;
  transform: translateX(-50%);
  font-family: var(--pixel);
  font-size: 12px;
  white-space: nowrap;
  padding: 5px 12px;
  border-radius: 6px;
  background: #0d0d1a;
  border: 1px solid var(--line-strong);
  color: var(--muted);
}

@keyframes float {
  50% {
    transform: translateY(-10px);
  }
}

section {
  padding: 88px 0;
  position: relative;
}

.section-label {
  font-family: var(--pixel);
  font-size: 12px;
  color: var(--violet);
  letter-spacing: 1.5px;
  margin: 0 0 10px;
}

section h2 {
  font-size: 34px;
  margin: 0 0 10px;
  letter-spacing: -0.3px;
}

section p.section-lead {
  color: var(--muted);
  margin: 0 0 40px;
  max-width: 640px;
}

.grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.card {
  position: relative;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(10px);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(139, 92, 246, 0.5);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45), 0 0 40px rgba(139, 92, 246, 0.18);
}

.card img {
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid var(--line);
}

.card .body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.card h3 {
  margin: 0;
  font-size: 19px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.card .links {
  margin-top: auto;
  padding-top: 8px;
  display: flex;
  gap: 18px;
  font-size: 14px;
  font-weight: 600;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  font-family: var(--pixel);
  font-size: 11px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  padding: 2px 8px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.sub-title {
  margin: 56px 0 0;
  font-size: 20px;
}

.contrib {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  display: grid;
  gap: 12px;
}

.contrib li {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.contrib .state {
  font-family: var(--pixel);
  font-size: 11px;
  color: #34d399;
  border: 1px solid rgba(52, 211, 153, 0.4);
  background: rgba(52, 211, 153, 0.08);
  border-radius: 4px;
  padding: 2px 8px;
}

.plans .card {
  padding: 28px;
  gap: 12px;
}

.plans .card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  opacity: 0.8;
}

.plans .price {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.plans .price small {
  font-size: 14px;
  color: var(--muted);
  font-weight: 400;
}

.plans ul {
  margin: 4px 0 0;
  padding-left: 0;
  list-style: none;
  color: var(--muted);
  font-size: 15px;
  display: grid;
  gap: 6px;
}

.plans li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--cyan);
}

.note {
  color: var(--muted);
  font-size: 14px;
  margin-top: 24px;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}

.steps li {
  counter-increment: step;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--pixel);
  font-size: 22px;
  color: var(--violet);
  text-shadow: 0 0 14px var(--glow-violet);
  margin-bottom: 8px;
}

.steps strong {
  display: block;
  margin-bottom: 4px;
}

.steps span {
  color: var(--muted);
  font-size: 15px;
}

.contact-box {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.16), rgba(34, 211, 238, 0.08));
  border: 1px solid rgba(139, 92, 246, 0.35);
  border-radius: var(--radius);
  padding: 36px;
  display: grid;
  gap: 12px;
  box-shadow: 0 0 60px rgba(139, 92, 246, 0.15);
}

.contact-box .mail {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
}

.contact-box .mail:hover {
  color: var(--cyan);
}

.contact-box .hint {
  color: var(--muted);
}

footer.site {
  border-top: 1px solid var(--line);
  padding: 32px 0 48px;
  color: var(--muted);
  font-size: 14px;
}

footer.site .wrap {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

footer.site .copy {
  font-family: var(--pixel);
  font-size: 12px;
}

footer.site nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

footer.site a {
  color: var(--muted);
}

footer.site a:hover {
  color: var(--text);
}

.doc {
  padding-top: 64px;
  padding-bottom: 80px;
  max-width: 820px;
}

.doc h1 {
  font-size: 36px;
  margin: 0 0 6px;
}

.doc .updated {
  font-family: var(--pixel);
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 36px;
}

.doc h2 {
  font-size: 20px;
  margin: 36px 0 8px;
  padding-left: 14px;
  border-left: 3px solid var(--violet);
}

.doc p,
.doc li {
  color: #d6d3e8;
}

.doc ol,
.doc ul {
  padding-left: 22px;
}

html[lang="zh-Hant-TW"] [lang="en"],
html[lang="en"] [lang="zh-Hant-TW"] {
  display: none !important;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 36px;
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .avatar-frame {
    order: -1;
    justify-self: start;
    padding: 10px;
    border-radius: 22px;
  }

  .avatar-frame::after {
    border-radius: 22px;
  }

  .avatar {
    width: 140px;
    height: 140px;
    border-radius: 14px;
  }

  .avatar-tag {
    display: none;
  }
}

@media (max-width: 720px) {
  nav.main a.optional {
    display: none;
  }

  section {
    padding: 64px 0;
  }

  .contact-box {
    padding: 24px;
  }

  .contact-box .mail {
    font-size: 21px;
  }
}

@media (max-width: 520px) {
  nav.main a {
    display: none;
  }

  nav.main a[href$="#contact"] {
    display: inline;
  }
}