:root {
  color-scheme: dark;
  --bg-top: #0f0f10;
  --bg-mid: #050505;
  --bg-bottom: #000000;
  --text: #f5f7fb;
  --muted: #c8ced8;
  --subtle: #9ea4af;
  --panel-top: rgba(17, 17, 19, 0.92);
  --panel-bottom: rgba(8, 8, 10, 0.97);
  --panel-border: rgba(255, 255, 255, 0.12);
  --card-top: rgba(255, 255, 255, 0.11);
  --card-bottom: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.12);
  --accent: #f4f4f5;
  --accent-ink: #0a0a0a;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }

body {
  min-height: 100dvh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255,255,255,0.08), transparent 28%),
    radial-gradient(circle at bottom right, rgba(255,255,255,0.05), transparent 24%),
    radial-gradient(circle at top, var(--bg-top) 0%, var(--bg-mid) 48%, var(--bg-bottom) 100%);
  color: var(--text);
}

.page {
  min-height: 100dvh;
  width: 100%;
  margin: 0 auto;
  display: grid;
  gap: 2rem;
  align-content: center;
  justify-items: center;
  padding: 24px;
}

.shell {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  width: min(1040px, 100%);
  border-radius: 32px;
  padding: clamp(1.5rem, 3vw, 3rem);
  background: linear-gradient(180deg, var(--panel-top) 0%, var(--panel-bottom) 100%);
  border: 1px solid var(--panel-border);
  box-shadow: 0 30px 80px rgba(0,0,0,0.55);
  backdrop-filter: blur(18px);
}

.orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(48px);
  opacity: 0.28;
  z-index: -1;
}
.orb-1 { top: -40px; right: -20px; width: 220px; height: 220px; background: rgba(255,255,255,0.15); }
.orb-2 { bottom: -90px; left: -40px; width: 260px; height: 260px; background: rgba(148,163,184,0.12); }

.badge {
  display: inline-block;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 1.25rem 0 0.75rem;
  font-size: clamp(3.2rem, 8vw, 6rem);
  line-height: 0.92;
  letter-spacing: -0.05em;
}

.subtitle {
  margin: 0;
  max-width: 740px;
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  margin-top: 2rem;
}

.card {
  border-radius: 22px;
  background: linear-gradient(180deg, var(--card-top) 0%, var(--card-bottom) 100%);
  border: 1px solid var(--card-border);
  padding: 1.15rem 1.2rem;
}

.card-label {
  margin: 0;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--subtle);
}

.card-text {
  margin: 0.55rem 0 0;
  font-size: 1rem;
  line-height: 1.55;
  color: #fafafa;
}

.invite-shell {
  padding-top: clamp(1.35rem, 2.4vw, 2.1rem);
  padding-bottom: clamp(1.35rem, 2.4vw, 2.1rem);
}

.invite-shell__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  gap: 2rem;
  align-items: center;
}

.invite-kicker {
  margin: 0 0 0.55rem;
  color: var(--subtle);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.invite-shell__copy h2 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 2.75rem);
  letter-spacing: -0.045em;
}

.invite-shell__copy p {
  margin: 0.9rem 0 0;
  max-width: 560px;
  color: var(--muted);
  line-height: 1.75;
  font-size: 1.04rem;
}

.invite-shell__form {
  display: grid;
  gap: 0.95rem;
  width: 100%;
}

.invite-shell__form input {
  width: 100%;
  min-width: 0;
  height: 58px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.08);
  color: var(--text);
  border-radius: 16px;
  padding: 0 18px;
  font: inherit;
  font-size: 1rem;
  outline: none;
}

.invite-shell__form input::placeholder { color: #8f95a0; }
.invite-shell__form input:focus {
  border-color: rgba(255,255,255,0.28);
  box-shadow: 0 0 0 3px rgba(255,255,255,0.08);
}

.invite-shell__form button {
  width: 100%;
  height: 58px;
  border: 0;
  border-radius: 16px;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
}

.footer {
  margin: 0;
  color: var(--subtle);
  font-size: 0.95rem;
  text-align: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 900px) {
  .invite-shell__layout {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }
}

@media (max-width: 640px) {
  .page { padding: 16px; gap: 1.25rem; }
  .shell { border-radius: 24px; }
  .subtitle, .invite-shell__copy p { font-size: 1rem; line-height: 1.65; }
}