:root {
  color-scheme: light dark;
  --bg: #f4f1ea;
  --bg-soft: #ebe6dc;
  --ink: #1c2a28;
  --muted: #5a6a67;
  --card: #ffffff;
  --line: rgba(28, 42, 40, 0.12);
  --accent: #0f8f82;
  --accent-ink: #ffffff;
  --accent-soft: rgba(15, 143, 130, 0.12);
  --danger: #b42318;
  --danger-bg: #fdecea;
  --ok: #0f6b45;
  --ok-bg: #e8f6ef;
  --shadow: 0 10px 30px rgba(28, 42, 40, 0.08);
  --radius: 1.1rem;
  --tap: 1.35rem;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151a19;
    --bg-soft: #1d2423;
    --ink: #eef3f1;
    --muted: #a7b4b1;
    --card: #202827;
    --line: rgba(238, 243, 241, 0.12);
  --accent: #2bb8a6;
    --accent-ink: #06201c;
    --accent-soft: rgba(43, 184, 166, 0.16);
    --danger: #ff8e85;
    --danger-bg: rgba(180, 35, 24, 0.22);
    --ok: #7ddeb2;
    --ok-bg: rgba(15, 107, 69, 0.28);
    --shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
  }
}

:root[data-theme="dark"] {
  --bg: #151a19;
  --bg-soft: #1d2423;
  --ink: #eef3f1;
  --muted: #a7b4b1;
  --card: #202827;
  --line: rgba(238, 243, 241, 0.12);
  --accent: #2bb8a6;
  --accent-ink: #06201c;
  --accent-soft: rgba(43, 184, 166, 0.16);
  --danger: #ff8e85;
  --danger-bg: rgba(180, 35, 24, 0.22);
  --ok: #7ddeb2;
  --ok-bg: rgba(15, 107, 69, 0.28);
  --shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}

:root[data-theme="light"] {
  --bg: #f4f1ea;
  --bg-soft: #ebe6dc;
  --ink: #1c2a28;
  --muted: #5a6a67;
  --card: #ffffff;
  --line: rgba(28, 42, 40, 0.12);
  --accent: #0f8f82;
  --accent-ink: #ffffff;
  --accent-soft: rgba(15, 143, 130, 0.12);
  --danger: #b42318;
  --danger-bg: #fdecea;
  --ok: #0f6b45;
  --ok-bg: #e8f6ef;
  --shadow: 0 10px 30px rgba(28, 42, 40, 0.08);
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: Manrope, system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 50% -20%, var(--accent-soft), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  -webkit-font-smoothing: antialiased;
}

.shell {
  max-width: 440px;
  margin: 0 auto;
  padding: 1.5rem 1.1rem 2.4rem;
}

.hero {
  margin-bottom: 1.1rem;
}

.brand {
  margin: 0 0 0.45rem;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0 0 0.45rem;
  font-size: clamp(1.55rem, 5.5vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.lead {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.15rem 1.05rem 1.2rem;
}

.step-title {
  margin: 0 0 0.9rem;
  font-size: 1.05rem;
  font-weight: 700;
}

.form {
  display: grid;
  gap: 0.85rem;
}

.check {
  display: grid;
  grid-template-columns: var(--tap) 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.55rem 0.45rem;
  border-radius: 0.75rem;
  font-size: 1rem;
  line-height: 1.4;
  cursor: pointer;
}

.check:focus-within {
  background: var(--accent-soft);
}

.check input {
  width: var(--tap);
  height: var(--tap);
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.check a {
  color: var(--accent);
  font-weight: 650;
  text-underline-offset: 0.14em;
}

.check em {
  font-style: normal;
  color: var(--muted);
  font-size: 0.92em;
}

.check.optional {
  border-top: 1px solid var(--line);
  margin-top: 0.15rem;
  padding-top: 0.85rem;
}

.hint {
  margin: 0.15rem 0 0;
  padding: 0.75rem 0.85rem;
  border-radius: 0.8rem;
  background: var(--accent-soft);
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.actions {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.25rem;
}

.cta,
.ghost {
  appearance: none;
  width: 100%;
  min-height: 3.15rem;
  border-radius: 0.9rem;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 750;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.cta {
  border: 0;
  color: var(--accent-ink);
  background: var(--accent);
}

.cta:hover:not(:disabled) {
  filter: brightness(1.04);
}

.cta:active:not(:disabled) {
  transform: scale(0.99);
}

.cta:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.cta.busy {
  opacity: 0.85;
}

.ghost {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
}

.ghost:hover {
  background: var(--accent-soft);
}

.status {
  min-height: 1.4rem;
  margin: 0.1rem 0 0;
  font-size: 0.98rem;
  line-height: 1.4;
  color: var(--muted);
}

.status.error {
  color: var(--danger);
  background: var(--danger-bg);
  border-radius: 0.7rem;
  padding: 0.7rem 0.8rem;
}

.status.ok {
  color: var(--ok);
  background: var(--ok-bg);
  border-radius: 0.7rem;
  padding: 0.7rem 0.8rem;
}

.done {
  text-align: center;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.done-mark {
  margin: 0 auto 0.6rem;
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: var(--ok-bg);
  color: var(--ok);
  font-size: 1.4rem;
  font-weight: 800;
}

.done h2 {
  margin: 0 0 0.45rem;
  font-size: 1.45rem;
}

.done .lead {
  margin-bottom: 1.1rem;
}

.hidden {
  display: none !important;
}

@media (prefers-reduced-motion: reduce) {
  .cta,
  .ghost {
    transition: none;
  }
}