:root {
  --bg: #0b0e1a;
  --bg-soft: #141829;
  --card: #1a1f35;
  --card-2: #20263f;
  --text: #eef1fb;
  --muted: #9aa3c0;
  --brand: #6c5ce7;
  --brand-2: #00cec9;
  --grad: linear-gradient(135deg, #6c5ce7 0%, #00cec9 100%);
  --radius: 16px;
  --maxw: 1080px;
  --shadow: 0 12px 40px rgba(0, 0, 0, .35);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #232a52 0%, var(--bg) 55%);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--brand-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.icon { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; fill: currentColor; }
.icon svg { width: 100%; height: 100%; display: block; fill: currentColor; }

/* ---------- Header / Navbar ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 14, 26, .82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.header-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; gap: 16px;
}
.brand {
  font-weight: 800; font-size: 1.35rem; color: var(--text);
  letter-spacing: .3px; display: flex; align-items: center; gap: 8px;
}
.brand .logo {
  width: 34px; height: 34px; border-radius: 10px; background: var(--grad);
  display: grid; place-items: center; color: #fff; font-size: 20px;
}
.brand .logo svg { width: 20px; height: 20px; }
.brand span.dot { color: var(--brand-2); }
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: 8px; flex: 1; }
.nav-link {
  color: var(--muted); font-weight: 600; font-size: .95rem;
  padding: 8px 12px; border-radius: 10px; transition: .15s;
}
.nav-link:hover { color: var(--text); background: var(--bg-soft); text-decoration: none; }
.nav-link[aria-current="true"] { color: var(--text); background: var(--bg-soft); }
.header-right { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.lang-select {
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-soft); color: var(--text);
  border: 1px solid rgba(255, 255, 255, .1); border-radius: 10px;
  padding: 8px 30px 8px 12px; font-size: .9rem; font-weight: 600; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239aa3c0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 8px center;
}
.menu-toggle {
  display: none; background: var(--bg-soft); color: var(--text);
  border: 1px solid rgba(255, 255, 255, .1); border-radius: 10px;
  width: 42px; height: 42px; cursor: pointer; place-items: center; font-size: 24px;
}
.menu-toggle svg { width: 24px; height: 24px; }

/* ---------- Hero ---------- */
main { max-width: var(--maxw); margin: 0 auto; padding: 8px 20px 60px; }
.hero { text-align: center; padding: 14px 0 24px; }
.hero h1 {
  font-size: clamp(1.9rem, 5vw, 3.2rem); margin: 0 0 12px; line-height: 1.15;
  background: linear-gradient(120deg, #fff 30%, #b8b0ff 60%, #7ff0ee 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero .sub { color: var(--muted); margin: 0 auto; max-width: 640px; font-size: 1.08rem; }
.thumb {
  width: 100%; max-width: 560px; height: auto; border-radius: 16px;
  margin: 0 auto; display: block; box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, .08);
}
.hero-media { margin: 30px auto 0; max-width: 680px; }
.hero-media .thumb { margin: 0 auto; }
.hero-desc { color: var(--muted); margin: 16px auto 0; max-width: 640px; font-size: 1rem; line-height: 1.7; }

/* ---------- Download widget ---------- */
.dl-widget {
  background: var(--card); border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius); padding: 20px; max-width: 680px; margin: 22px auto 0;
  box-shadow: var(--shadow);
}
.dl-widget form { display: block; }
.dl-field { display: flex; gap: 0; margin-bottom: 10px; }
.dl-widget input {
  flex: 1 1 auto; min-width: 0; padding: 15px 18px; border-radius: 12px 0 0 12px;
  border: 1px solid rgba(255, 255, 255, .12); border-right: 0; background: var(--bg-soft);
  color: var(--text); font-size: 1rem; outline: none; transition: .15s;
}
.dl-widget input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(108, 92, 231, .25); }
.dl-paste {
  padding: 15px 20px; border: 1px solid rgba(255, 255, 255, .12); border-radius: 0 12px 12px 0;
  background: var(--card-2); color: var(--text); cursor: pointer; font-weight: 700; font-size: .95rem;
  white-space: nowrap; transition: .15s;
}
.dl-paste:hover { background: var(--brand); color: #fff; }
.dl-submit {
  width: 100%; padding: 16px 22px; border: 0; border-radius: 12px; cursor: pointer;
  font-weight: 800; font-size: 1.05rem; color: #fff; background: var(--grad);
  display: flex; align-items: center; justify-content: center; gap: 8px; transition: .15s;
}
.dl-submit:hover { filter: brightness(1.1); transform: translateY(-1px); }
.dl-error { color: #ff7675; min-height: 1.2em; margin: 12px 0 0; font-size: .95rem; text-align: center; }
.dl-results { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.dl-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 18px; border-radius: 12px; background: var(--grad);
  color: #fff; font-weight: 700; text-align: center; transition: .15s;
}
.dl-btn:hover { text-decoration: none; filter: brightness(1.1); transform: translateY(-1px); }
.dl-loading { color: var(--muted); text-align: center; }

/* ---------- Sections ---------- */
section { margin-top: 48px; }
.section-head { text-align: center; margin-bottom: 24px; }
.section-head h2 { font-size: 1.7rem; margin: 0 0 6px; }
.section-head p { color: var(--muted); margin: 0; }
h2 { font-size: 1.5rem; }

/* ---------- Platform cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.card {
  background: var(--card); border: 1px solid rgba(255, 255, 255, .07);
  border-radius: var(--radius); padding: 18px; display: flex; gap: 14px;
  align-items: flex-start; transition: .18s;
}
.card:hover { transform: translateY(-3px); border-color: rgba(108, 92, 231, .5); box-shadow: var(--shadow); }
.card .icon {
  width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0; padding: 12px;
  display: grid; place-items: center; color: #fff; font-size: 24px;
}
.card h3 { margin: 0 0 4px; font-size: 1.05rem; }
.card h3 a { color: var(--text); }
.card h3 a:hover { color: var(--brand-2); text-decoration: none; }
.card p { margin: 0; color: var(--muted); font-size: .88rem; }

/* ---------- Steps ---------- */
ol.steps { display: grid; gap: 12px; padding-left: 0; list-style: none; counter-reset: s; max-width: 720px; margin: 0 auto; }
ol.steps li {
  counter-increment: s; background: var(--card); border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 14px; padding: 16px 18px 16px 58px; position: relative; font-weight: 600;
}
ol.steps li::before {
  content: counter(s); position: absolute; left: 16px; top: 16px; width: 28px; height: 28px;
  background: var(--grad); color: #fff; border-radius: 50%; display: grid; place-items: center;
  font-size: .9rem; font-weight: 800;
}

/* ---------- Feature cards ---------- */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.feature {
  background: var(--card); border: 1px solid rgba(255, 255, 255, .07);
  border-radius: var(--radius); padding: 22px; text-align: center;
}
.feature .icon {
  width: 52px; height: 52px; border-radius: 14px; margin: 0 auto 12px; padding: 12px;
  background: var(--grad); display: grid; place-items: center; color: #fff; font-size: 26px;
}
.feature h3 { margin: 0 0 6px; font-size: 1.05rem; }
.feature p { margin: 0; color: var(--muted); font-size: .9rem; }

/* ---------- Related ---------- */
.related ul { columns: 2; gap: 18px; padding-left: 0; list-style: none; }
.related li { margin-bottom: 8px; }
.related a { color: var(--muted); font-weight: 600; }
.related a:hover { color: var(--brand-2); }

/* ---------- Formats / internal links ---------- */
.formats { max-width: 880px; margin: 0 auto; }
.format-list { list-style: none; padding: 0; margin: 14px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.format-list a {
  display: block; padding: 13px 16px; background: var(--card);
  border: 1px solid rgba(255, 255, 255, .08); border-radius: 12px;
  color: var(--text); font-weight: 600; text-decoration: none; transition: .15s;
}
.format-list a:hover { border-color: var(--brand); color: #fff; background: var(--card-2); }

/* ---------- FAQ ---------- */
.faq details {
  background: var(--card); border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; max-width: 720px; margin-left: auto; margin-right: auto;
}
.faq summary { cursor: pointer; font-weight: 700; display: flex; align-items: center; gap: 10px; }
.faq summary::before {
  content: ""; width: 20px; height: 20px; flex-shrink: 0;
  background-color: var(--brand-2);
  -webkit-mask: url("/assets/icons/add.svg") center / contain no-repeat;
  mask: url("/assets/icons/add.svg") center / contain no-repeat;
}
.faq details[open] summary::before {
  -webkit-mask-image: url("/assets/icons/remove.svg");
  mask-image: url("/assets/icons/remove.svg");
}
.faq p { color: var(--muted); margin: 10px 0 0; }

/* ---------- Support pages ---------- */
.support-body { max-width: 720px; margin: 0 auto; }
.support-body p { color: var(--muted); }

/* ---------- Disclaimer ---------- */
.disclaimer {
  font-size: .85rem; color: var(--muted); border-top: 1px solid rgba(255, 255, 255, .08);
  margin-top: 48px; padding-top: 18px; text-align: center;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, .07);
  background: rgba(11, 14, 26, .6); margin-top: 60px;
}
.footer-grid {
  max-width: var(--maxw); margin: 0 auto; padding: 44px 20px 24px;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 28px;
}
.footer-col .brand { margin-bottom: 12px; }
.footer-col p { color: var(--muted); font-size: .9rem; margin: 0 0 14px; max-width: 260px; }
.footer-col h4 { margin: 0 0 12px; font-size: .95rem; color: var(--text); }
.footer-col a { display: block; color: var(--muted); font-size: .9rem; margin-bottom: 8px; }
.footer-col a:hover { color: var(--brand-2); }
.footer-bottom {
  max-width: var(--maxw); margin: 0 auto; padding: 18px 20px 40px;
  border-top: 1px solid rgba(255, 255, 255, .06);
  color: var(--muted); font-size: .85rem; text-align: center;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .menu-toggle { display: grid; }
  .main-nav {
    position: fixed; top: 60px; left: 0; right: 0; z-index: 49;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: rgba(11, 14, 26, .97);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    padding: 12px 16px 16px; border-bottom: 1px solid rgba(255, 255, 255, .08);
    display: none;
  }
  .main-nav.open { display: flex; }
  .nav-link { padding: 12px 14px; font-size: 1rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .related ul { columns: 1; }
  .footer-grid { grid-template-columns: 1fr; }
  .header-inner { padding: 10px 14px; }
  main { padding: 8px 14px 50px; }
}