*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body, #root {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ── Setup screen ──────────────────────────────────────────────── */

.setup-root {
  min-height: 100dvh;
  background: #09090b;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.setup-card {
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.logo-mark {
  width: 56px;
  height: 56px;
  margin: 0 auto 0.5rem;
}

.logo-mark svg {
  width: 100%;
  height: 100%;
}

.setup-title {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: #fafafa;
  letter-spacing: -0.02em;
}

.setup-subtitle {
  text-align: center;
  font-size: 0.875rem;
  color: #71717a;
  margin-top: -0.75rem;
}

/* ── Form ───────────────────────────────────────────────────────── */

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #a1a1aa;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: #18181b;
  border: 1px solid #27272a;
  border-radius: 0.625rem;
  color: #fafafa;
  font-size: 0.9375rem;
  outline: none;
  transition: border-color 0.15s;
  -webkit-appearance: none;
}

.form-input::placeholder {
  color: #52525b;
}

.form-input:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-input:disabled {
  opacity: 0.5;
}

.form-error {
  font-size: 0.8125rem;
  color: #f87171;
}

.form-hint {
  font-size: 0.75rem;
  color: #52525b;
  line-height: 1.5;
}

/* ── Buttons ─────────────────────────────────────────────────────── */

.btn-primary {
  width: 100%;
  padding: 0.8125rem 1rem;
  background: #6366f1;
  color: #fff;
  border: none;
  border-radius: 0.625rem;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.btn-primary:hover:not(:disabled) {
  background: #4f46e5;
}

.btn-primary:active:not(:disabled) {
  background: #4338ca;
}

.btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-secondary {
  width: 100%;
  padding: 0.8125rem 1rem;
  background: transparent;
  color: #71717a;
  border: 1px solid #27272a;
  border-radius: 0.625rem;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: not-allowed;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  -webkit-tap-highlight-color: transparent;
}

.badge {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: #27272a;
  color: #71717a;
  padding: 0.1875rem 0.5rem;
  border-radius: 9999px;
}

/* ── Divider ─────────────────────────────────────────────────────── */

.divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #3f3f46;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: #27272a;
}

/* ── Footer note ─────────────────────────────────────────────────── */

.setup-footer {
  font-size: 0.75rem;
  color: #3f3f46;
  text-align: center;
  line-height: 1.6;
  padding: 0 0.25rem;
}

.setup-footer strong {
  color: #52525b;
  font-weight: 500;
}

/* ── Spinner (shown briefly while checking preferences) ─────────── */

.spinner {
  width: 28px;
  height: 28px;
  border: 2px solid #27272a;
  border-top-color: #6366f1;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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