:root {
  --paper: #f4efe6;
  --surface: #fffdf8;
  --surface-strong: #f9f4ea;
  --ink: #111111;
  --text: #111827;
  --muted: #5e5a53;
  --line: rgba(17, 17, 17, 0.14);
  --accent: #8f7553;
  --font-display: "Bricolage Grotesque", sans-serif;
  --font-body: "Manrope", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at 14% 18%, rgba(143, 117, 83, 0.13), transparent 27%),
    radial-gradient(circle at 84% 78%, rgba(17, 17, 17, 0.05), transparent 28%),
    var(--paper);
}

button,
input {
  font: inherit;
}

button,
label {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

.onboarding-shell {
  width: min(1180px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  align-content: center;
  gap: 28px;
  padding: 28px 24px;
}

.brand {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
}

.brand span {
  color: var(--ink);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.onboarding-card {
  overflow: hidden;
  min-height: 700px;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(420px, 0.78fr);
  border: 1px solid rgba(17, 17, 17, 0.1);
  border-radius: 42px;
  background: var(--surface);
  box-shadow: 0 28px 70px rgba(17, 17, 17, 0.09);
}

.onboarding-brief {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 54px;
  color: var(--surface);
  background:
    radial-gradient(circle at 84% 18%, rgba(143, 117, 83, 0.22), transparent 24%),
    linear-gradient(135deg, #111111, #171615 58%, #0d0d0c);
}

.kicker {
  margin: 0 0 18px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.onboarding-brief h1 {
  max-width: 9ch;
  margin: 0;
  color: var(--surface);
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 6vw, 6.2rem);
  line-height: 0.9;
  letter-spacing: -0.055em;
}

.onboarding-brief > p:not(.kicker) {
  max-width: 42ch;
  margin: 26px 0 0;
  color: rgba(255, 253, 248, 0.68);
  line-height: 1.8;
}

.profile-preview {
  margin-top: 42px;
  padding: 24px;
  border: 1px solid rgba(255, 253, 248, 0.14);
  border-radius: 28px;
  background: rgba(255, 253, 248, 0.07);
}

.profile-preview span {
  color: rgba(255, 253, 248, 0.54);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.profile-preview strong {
  display: block;
  margin-top: 12px;
  color: var(--surface);
  font-family: var(--font-display);
  font-size: 1.9rem;
  line-height: 1;
}

.profile-preview p {
  margin: 14px 0 0;
  color: rgba(255, 253, 248, 0.64);
  line-height: 1.6;
}

.question-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px;
}

.progress {
  display: grid;
  gap: 12px;
  margin-bottom: 34px;
}

.progress span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.progress__track {
  overflow: hidden;
  height: 10px;
  border-radius: 999px;
  background: rgba(17, 17, 17, 0.08);
}

.progress__track i {
  display: block;
  width: 20%;
  height: 100%;
  border-radius: inherit;
  background: var(--ink);
  transition: width 240ms ease;
}

.onboarding-form {
  display: grid;
}

.question-step {
  display: none;
  margin: 0;
  padding: 0;
  border: 0;
}

.question-step.is-active {
  display: grid;
  animation: stepIn 260ms ease both;
}

.question-step legend {
  max-width: 12ch;
  margin: 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4vw, 3.8rem);
  font-weight: 800;
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.question-step p {
  margin: 18px 0 24px;
  color: var(--muted);
  line-height: 1.7;
}

.question-step label {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 62px;
  margin-top: 12px;
  padding: 14px 16px;
  border: 1px solid rgba(17, 17, 17, 0.12);
  border-radius: 18px;
  background: var(--surface-strong);
  color: var(--ink);
  font-weight: 800;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.question-step label:hover {
  transform: translateY(-2px);
  border-color: rgba(17, 17, 17, 0.28);
  background: var(--surface);
}

.question-step input {
  width: 18px;
  height: 18px;
  accent-color: var(--ink);
}

.question-step label:has(input:checked) {
  color: var(--surface);
  background: var(--ink);
  border-color: var(--ink);
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid rgba(17, 17, 17, 0.22);
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(17, 17, 17, 0.08);
}

.button--solid {
  color: var(--surface);
  background: var(--ink);
  border-color: var(--ink);
}

.button--ghost {
  color: var(--ink);
  background: var(--surface);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.42;
  transform: none;
  box-shadow: none;
}

.is-hidden {
  display: none;
}

.form-status {
  min-height: 24px;
  margin: 18px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.form-status.is-error {
  color: #b42318;
}

.form-status.is-success {
  color: #16703c;
}

@keyframes stepIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .onboarding-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .onboarding-shell {
    padding: 18px 14px;
  }

  .onboarding-card {
    border-radius: 30px;
  }

  .onboarding-brief,
  .question-panel {
    padding: 28px 20px;
  }

  .form-actions {
    flex-direction: column;
  }
}