:root {
  color-scheme: dark;
  --bg: #050914;
  --panel: rgba(7, 18, 34, 0.88);
  --panel-strong: rgba(12, 31, 50, 0.92);
  --line: rgba(77, 255, 232, 0.34);
  --cyan: #4dffe8;
  --blue: #65afff;
  --muted: rgba(232, 241, 255, 0.66);
  --white: #f7fbff;
  --error: #ffb4ac;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  overflow-x: hidden;
  background:
    radial-gradient(circle at 22% 14%, rgba(77, 255, 232, 0.18), transparent 30%),
    radial-gradient(circle at 82% 18%, rgba(117, 78, 255, 0.2), transparent 34%),
    linear-gradient(145deg, #04131b 0%, #060817 44%, #0d1028 100%);
  color: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.landing-shell {
  position: relative;
  display: grid;
  min-height: 100svh;
  grid-template-columns: minmax(320px, 520px);
  align-items: center;
  justify-content: center;
  padding: max(22px, env(safe-area-inset-top)) clamp(18px, 5vw, 72px) max(22px, env(safe-area-inset-bottom));
}

.starfield,
.starfield::before,
.starfield::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
}

.starfield {
  background-image:
    radial-gradient(circle at 8% 16%, rgba(255, 255, 255, 0.7) 0 1px, transparent 1.7px),
    radial-gradient(circle at 18% 76%, rgba(77, 255, 232, 0.56) 0 1px, transparent 1.9px),
    radial-gradient(circle at 39% 26%, rgba(255, 255, 255, 0.48) 0 1px, transparent 1.8px),
    radial-gradient(circle at 53% 62%, rgba(255, 255, 255, 0.38) 0 1px, transparent 1.7px),
    radial-gradient(circle at 77% 34%, rgba(77, 255, 232, 0.5) 0 1px, transparent 1.8px),
    radial-gradient(circle at 91% 82%, rgba(255, 255, 255, 0.52) 0 1px, transparent 1.8px);
  opacity: 0.55;
}

.starfield::before {
  background-image:
    linear-gradient(rgba(77, 255, 232, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77, 255, 232, 0.08) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(circle at center, black 0%, transparent 76%);
  opacity: 0.36;
}

.starfield::after {
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.36));
}

.hero-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(77, 255, 232, 0.08), transparent 30%),
    linear-gradient(180deg, rgba(9, 25, 44, 0.94), rgba(4, 10, 22, 0.96)),
    var(--panel);
  box-shadow:
    0 26px 70px rgba(0, 0, 0, 0.48),
    0 0 42px rgba(77, 255, 232, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
  padding: clamp(18px, 3vw, 30px);
}

.hero-panel::before {
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(77, 255, 232, 0.14);
  border-radius: 18px;
  pointer-events: none;
  content: "";
}

.brand-lockup {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
}

.brand-mark {
  display: grid;
  width: 76px;
  height: 76px;
  place-items: center;
  border: 1px solid rgba(77, 255, 232, 0.34);
  border-radius: 20px;
  background:
    radial-gradient(circle at 45% 25%, rgba(77, 255, 232, 0.22), transparent 42%),
    rgba(4, 14, 27, 0.88);
  box-shadow: 0 0 26px rgba(77, 255, 232, 0.14);
}

.brand-mark img {
  display: block;
  max-width: 56px;
  max-height: 56px;
  user-select: none;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 950;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  color: var(--white);
  font-size: clamp(2.05rem, 6vw, 3.6rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.subcopy,
.success-card p,
.success-card p {
  color: var(--muted);
  font-weight: 750;
  line-height: 1.45;
}

.signup-card,
.success-card {
  position: relative;
  display: grid;
  gap: 14px;
  margin-top: 22px;
  border: 1px solid rgba(77, 255, 232, 0.22);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(18, 43, 70, 0.86), rgba(6, 13, 28, 0.92)),
    var(--panel-strong);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  padding: 16px;
}

.form-step {
  display: none;
  gap: 12px;
}

.form-step.is-active {
  display: grid;
}

.field {
  display: grid;
  gap: 7px;
  color: rgba(244, 248, 255, 0.82);
  font-size: 0.74rem;
  font-weight: 950;
  text-transform: uppercase;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid rgba(77, 255, 232, 0.26);
  border-radius: 14px;
  background: rgba(4, 12, 25, 0.92);
  color: var(--white);
  font-size: 0.96rem;
  font-weight: 800;
  outline: none;
  padding: 14px 14px;
  text-transform: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.field textarea {
  min-height: 74px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  border-color: rgba(77, 255, 232, 0.7);
  background: rgba(8, 20, 38, 0.96);
  box-shadow: 0 0 24px rgba(77, 255, 232, 0.14);
}

.terms-row {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 760;
  line-height: 1.38;
}

.terms-row input {
  appearance: none;
  display: grid;
  width: 19px;
  height: 19px;
  place-items: center;
  border: 1px solid rgba(77, 255, 232, 0.5);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
}

.terms-row input::after {
  width: 9px;
  height: 5px;
  border-bottom: 2px solid #06101d;
  border-left: 2px solid #06101d;
  content: "";
  opacity: 0;
  transform: rotate(-45deg) translateY(-1px);
}

.terms-row input:checked {
  background: var(--cyan);
}

.terms-row input:checked::after {
  opacity: 1;
}

.legal-link {
  border: 0;
  background: transparent;
  color: var(--cyan);
  cursor: pointer;
  font: inherit;
  font-weight: 950;
  padding: 0;
}

.feedback {
  min-height: 18px;
  margin: 0;
  color: rgba(244, 248, 255, 0.7);
  font-size: 0.8rem;
  font-weight: 850;
}

.feedback[data-tone="error"] {
  color: var(--error);
}

.actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.primary-button,
.ghost-button {
  display: inline-grid;
  min-height: 52px;
  grid-auto-flow: column;
  gap: 10px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  cursor: pointer;
  font-weight: 950;
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, filter 160ms ease, box-shadow 160ms ease;
}

.primary-button {
  border: 1px solid rgba(77, 255, 232, 0.5);
  background:
    radial-gradient(circle at 18% 0, rgba(255, 255, 255, 0.22), transparent 34%),
    linear-gradient(135deg, rgba(77, 255, 232, 0.98), rgba(82, 174, 255, 0.94));
  box-shadow:
    0 16px 32px rgba(77, 255, 232, 0.18),
    inset 0 -12px 20px rgba(5, 14, 31, 0.18);
  color: #04101b;
}

.ghost-button {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  padding: 0 20px;
}

.primary-button:hover,
.primary-button:focus-visible,
.ghost-button:hover,
.ghost-button:focus-visible {
  filter: brightness(1.06);
  outline: none;
  transform: translateY(-1px);
}

.spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(4, 16, 27, 0.28);
  border-top-color: #04101b;
  border-radius: 999px;
}

.signup-card.is-loading .spinner {
  display: block;
  animation: spin 720ms linear infinite;
}

.success-card h2 {
  margin-bottom: 8px;
  font-size: 1.7rem;
}

.success-card .primary-button {
  margin-top: 8px;
}

.legal-modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: none;
  place-items: center;
  background: rgba(0, 0, 0, 0.72);
  padding: 18px;
}

.legal-modal.is-visible {
  display: grid;
}

.legal-panel {
  position: relative;
  overflow: hidden;
  width: min(920px, 100%);
  height: min(760px, calc(100svh - 40px));
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #06101d;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.55);
}

.legal-panel h2 {
  height: 58px;
  margin: 0;
  border-bottom: 1px solid rgba(77, 255, 232, 0.18);
  color: var(--white);
  font-size: 1rem;
  padding: 18px 58px 0 18px;
}

.legal-close {
  position: absolute;
  top: 11px;
  right: 11px;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  cursor: pointer;
}

.legal-panel iframe {
  width: 100%;
  height: calc(100% - 58px);
  border: 0;
  background: #ffffff;
}

[hidden] {
  display: none !important;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 860px) {
  .landing-shell {
    grid-template-columns: minmax(0, 480px);
    align-content: start;
  }
}

@media (max-width: 520px) {
  .landing-shell {
    padding: max(16px, env(safe-area-inset-top)) 14px max(16px, env(safe-area-inset-bottom));
  }

  .hero-panel {
    border-radius: 20px;
    padding: 16px;
  }

  .brand-lockup {
    grid-template-columns: 66px minmax(0, 1fr);
    gap: 12px;
  }

  .brand-mark {
    width: 62px;
    height: 62px;
    border-radius: 18px;
  }

  .brand-mark img {
    max-width: 46px;
    max-height: 46px;
  }

  h1 {
    font-size: 2rem;
  }

  .actions {
    grid-template-columns: 1fr;
  }

  .ghost-button {
    min-height: 44px;
  }
}