:root {
  --bg: #080f1e;
  --bg-soft: #0d1526;
  --card: #0b1322;
  --card-border: rgba(255,255,255,.07);
  --text: #e2e8f0;
  --muted: #8b96a8;
  --brand: #22c55e;
  --brand-dim: rgba(34,197,94,.12);
  --brand-border: rgba(34,197,94,.28);
  --accent: #38bdf8;
  --accent-dim: rgba(56,189,248,.12);
  --ring: rgba(34,197,94,.35);
  --maxw: 1128px;
  --radius: 14px;
}

* { box-sizing: border-box }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
}

a { color: var(--accent); text-decoration: none }
a:hover { text-decoration: underline }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px;
}

/* ── Header ──────────────────────────────── */
header {
  position: sticky;
  top: 0;
  backdrop-filter: saturate(180%) blur(10px);
  background: linear-gradient(to bottom, rgba(8,15,30,.92), rgba(8,15,30,.72));
  border-bottom: 1px solid rgba(255,255,255,.07);
  z-index: 50;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

header nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: nowrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand__icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  flex-shrink: 0;
  vertical-align: middle;
}

.brand__name {
  font-weight: 700;
  letter-spacing: -.2px;
  font-size: 1.1rem;
}

.brand__link { color: inherit; text-decoration: none }
.brand__link:hover { text-decoration: none }

/* ── Buttons ─────────────────────────────── */
.cta {
  display: inline-block;
  background: var(--brand);
  color: #03180a;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -.1px;
  box-shadow: 0 0 0 0 var(--ring), 0 4px 18px -6px rgba(34,197,94,.5);
  transition: transform .08s ease, box-shadow .2s ease;
  white-space: nowrap;
}
.cta:hover { transform: translateY(-1px); box-shadow: 0 0 0 3px var(--ring), 0 6px 22px -6px rgba(34,197,94,.55); text-decoration: none }
.cta:active { transform: translateY(0) }

.ghost {
  border: 1px solid rgba(255,255,255,.1);
  padding: 9px 14px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 14px;
  transition: border-color .15s, color .15s;
  white-space: nowrap;
}
.ghost:hover { border-color: rgba(255,255,255,.22); color: var(--text); text-decoration: none }

/* ── Language switcher ───────────────────── */
.lang-switcher {
  position: relative;
  display: flex;
  align-items: center;
}

.lang-switcher > summary {
  list-style: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 11px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  white-space: nowrap;
  user-select: none;
  transition: border-color .15s, background .15s;
}
.lang-switcher > summary::-webkit-details-marker { display: none }
.lang-switcher > summary::after {
  content: '▾';
  font-size: 9px;
  color: var(--muted);
  flex-shrink: 0;
  transition: transform .15s ease;
  line-height: 1;
}
.lang-switcher[open] > summary { border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.04) }
.lang-switcher[open] > summary::after { transform: rotate(180deg) }

.lang-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: #0e1a2e;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  padding: 5px;
  min-width: 148px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 1px;
  box-shadow: 0 12px 32px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.04);
  animation: fadeSlideDown .14s ease;
}

.lang-menu a {
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background .12s, color .12s;
  white-space: nowrap;
}
.lang-menu a:hover { background: rgba(255,255,255,.06); color: var(--text); text-decoration: none }
.lang-menu a.lang-active { color: var(--brand); background: var(--brand-dim) }

.lang-code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .5px;
  padding: 2px 5px;
  border-radius: 4px;
  background: rgba(255,255,255,.08);
  color: var(--muted);
  min-width: 24px;
  flex-shrink: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.lang-active .lang-code { background: var(--brand-dim); color: var(--brand) }

/* ── Main / Hero ─────────────────────────── */
main { display: block }

.hero {
  padding: 64px 0 32px;
  position: relative;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: linear-gradient(135deg, rgba(56,189,248,.15), rgba(56,189,248,.05));
  border: 1px solid rgba(56,189,248,.3);
  color: #a5d8f5;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .3px;
}

h1 {
  font-size: clamp(28px, 4.8vw, 46px);
  line-height: 1.12;
  margin: .6rem 0 1rem;
  letter-spacing: -.5px;
}

.lead {
  font-size: clamp(15px, 1.7vw, 17px);
  color: var(--muted);
  max-width: 58ch;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 22px;
}

.hero__actions .cta { padding: 12px 22px; font-size: 15px }

.card {
  background: linear-gradient(160deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 16px;
}

.screen {
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 4px 24px rgba(0,0,0,.4);
  display: block;
}

/* ── Trust bar ───────────────────────────── */
.trust-bar {
  padding: 0;
  background: none;
  border: none;
}

.trust-bar__inner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  list-style: none;
  padding: 12px 24px;
  border-top: 1px solid rgba(255,255,255,.05);
  border-bottom: 1px solid rgba(255,255,255,.05);
  background: linear-gradient(90deg, rgba(34,197,94,.05), rgba(56,189,248,.04), rgba(34,197,94,.05));
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}
.trust-item strong { color: var(--text); font-weight: 600 }
.trust-check {
  color: var(--brand);
  font-weight: 700;
  font-size: 13px;
  line-height: 1;
}

/* ── Features ────────────────────────────── */
.features { padding: 48px 0 16px }

.features h2,
.how h2,
.faq h2 {
  font-size: clamp(20px, 2.8vw, 28px);
  letter-spacing: -.3px;
  margin-top: 0;
  margin-bottom: 6px;
}

.section-sub {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 28px;
}

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

.feature {
  background: linear-gradient(160deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
  cursor: default;
}
.feature:hover {
  border-color: rgba(255,255,255,.15);
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(0,0,0,.3);
}

.feature__icon {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  margin-bottom: 14px;
  flex-shrink: 0;
}

.feature:nth-child(1) .feature__icon { background: rgba(34,197,94,.12); border: 1px solid rgba(34,197,94,.22) }
.feature:nth-child(2) .feature__icon { background: rgba(56,189,248,.12); border: 1px solid rgba(56,189,248,.22) }
.feature:nth-child(3) .feature__icon { background: rgba(251,191,36,.12); border: 1px solid rgba(251,191,36,.22) }
.feature:nth-child(4) .feature__icon { background: rgba(239,68,68,.12);  border: 1px solid rgba(239,68,68,.22) }
.feature:nth-child(5) .feature__icon { background: rgba(168,85,247,.12); border: 1px solid rgba(168,85,247,.22) }
.feature:nth-child(6) .feature__icon { background: rgba(56,189,248,.12); border: 1px solid rgba(56,189,248,.22) }

.feature h3 {
  margin: 0 0 .35rem;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.1px;
}
.feature p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6 }

/* ── How it works ────────────────────────── */
.how { padding: 32px 0; counter-reset: step }

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

.how .step {
  counter-increment: step;
  position: relative;
  padding-left: 16px;
}

.how .step::before {
  content: counter(step);
  position: absolute;
  left: -2px;
  top: 0;
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: var(--brand);
  color: #03180a;
  font-weight: 800;
  font-size: 12px;
}

.how .step h3 { margin: 0 0 .3rem; font-size: 16px; padding-top: 2px }
.how .step p { margin: 0; color: var(--muted); font-size: 14px }

/* ── FAQ ─────────────────────────────────── */
.faq { padding: 32px 0 16px }

.faq details {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 12px;
  padding: 14px 16px;
  transition: background .2s;
}
.faq details[open] { background: rgba(255,255,255,.04) }
.faq details + details { margin-top: 8px }

.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.faq summary::-webkit-details-marker { display: none }
.faq summary::after {
  content: '+';
  font-size: 20px;
  font-weight: 300;
  color: var(--muted);
  flex-shrink: 0;
  transition: transform .2s;
  line-height: 1;
}
.faq details[open] summary::after { transform: rotate(45deg) }
.faq details > p { margin: 10px 0 0; color: var(--muted); font-size: 14px; animation: fadeSlideDown .18s ease }

/* ── Bottom CTA ──────────────────────────── */
.cta-bottom { padding: 32px 0 56px }

.cta-box {
  background: linear-gradient(135deg, rgba(34,197,94,.09), rgba(56,189,248,.05));
  border: 1px solid var(--brand-border);
  border-radius: 22px;
  padding: 56px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(34,197,94,.12), transparent 70%);
  pointer-events: none;
}

.cta-box__eyebrow {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--brand);
  margin: 0 0 12px;
}

.cta-box h2 {
  font-size: clamp(22px, 3.5vw, 34px);
  margin: 0 0 12px;
  letter-spacing: -.3px;
}

.cta-box__sub {
  color: var(--muted);
  margin: 0 auto 28px;
  max-width: 48ch;
  font-size: 15px;
  display: block;
}

/* ── Footer ──────────────────────────────── */
footer {
  border-top: 1px solid rgba(255,255,255,.06);
  background: rgba(5,10,20,.6);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}

.footer__links { display: flex; gap: 14px; flex-wrap: wrap }
.footer__links a { color: var(--muted); font-size: 13px }
.footer__links a:hover { color: var(--text) }
.small { font-size: 13px; color: var(--muted) }

/* ── Legal pages ─────────────────────────── */
main.container > section { margin-bottom: 20px }
main.container h1 { margin-bottom: 4px }

/* ── Utilities ───────────────────────────── */
.kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(255,255,255,.05);
  padding: 2px 6px;
  border-radius: 6px;
}

/* ── Animations ──────────────────────────── */
@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-6px) }
  to   { opacity: 1; transform: translateY(0) }
}

/* ── Loading screen (Flutter shell) ─────── */
#loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  color: #e5e7eb;
  background: #0f172a;
}
#loading img { width: 64px; height: 64px; margin-bottom: 1rem }

/* ── Focus accessibility ─────────────────── */
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 4px }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px }

/* ── Responsive ──────────────────────────── */
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr }
  .features__grid, .how__grid { grid-template-columns: 1fr 1fr }
  .cta-box { padding: 40px 24px }
}

@media (max-width: 640px) {
  .features__grid, .how__grid { grid-template-columns: 1fr }
  .container { padding: 18px }
  header nav .ghost { display: none }
  header nav { gap: 8px }
  .trust-bar__inner { gap: 14px }
  .trust-item:nth-child(n+4) { display: none }
}