:root {
  --bg: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f4ff;
  --bg-card-selected: #eef2ff;
  --text: #111827;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-light: #eef2ff;
  --border: #e5e7eb;
  --border-selected: #4f46e5;
  --success: #10b981;
  --error: #ef4444;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 12px;
  --shadow: 0 4px 12px rgba(0,0,0,0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1117;
    --bg-secondary: #1a1d28;
    --bg-card: #1e2130;
    --bg-card-hover: #262a3a;
    --bg-card-selected: #2a2e42;
    --text: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --accent: #818cf8;
    --accent-hover: #6366f1;
    --accent-light: #2a2e42;
    --border: #2d3148;
    --border-selected: #818cf8;
    --shadow: 0 4px 12px rgba(0,0,0,0.3);
  }
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
}

.container {
  width: 100%;
  max-width: 480px;
  padding: 2rem 0;
}

/* Header */
.logo {
  text-align: center;
  margin-bottom: 2rem;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* Step indicator */
.steps {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.step-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: all 0.3s;
}

.step-dot.active {
  background: var(--accent);
  width: 24px;
  border-radius: 4px;
}

.step-dot.done {
  background: var(--success);
}

/* Step panels */
.step {
  display: none;
  animation: fadeIn 0.3s ease;
}

.step.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.step h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.step .subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

/* Choice cards */
.choices {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  cursor: pointer;
  transition: all 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
}

.card.selected {
  background: var(--bg-card-selected);
  border-color: var(--border-selected);
}

.card.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.card.disabled:hover {
  background: var(--bg-card);
  border-color: var(--border);
}

.coming-soon {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-icon {
  font-size: 1.75rem;
  width: 40px;
  text-align: center;
  flex-shrink: 0;
}

.card-text h3 {
  font-size: 1rem;
  font-weight: 600;
}

.card-text p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.125rem;
}

.card .badge {
  margin-left: auto;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background: var(--accent-light);
  color: var(--accent);
}

/* Buttons */
.btn {
  display: block;
  width: 100%;
  padding: 1rem;
  margin-top: 2rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: white;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-secondary {
  background: none;
  color: var(--text-secondary);
  border: 2px solid var(--border);
  margin-top: 0.75rem;
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  color: var(--text);
}

/* Success / status */
.status-icon {
  font-size: 4rem;
  text-align: center;
  margin-bottom: 1rem;
}

.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 1rem auto;
}

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

.status-text {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Connect step */
.connect-card {
  padding: 1.5rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  margin-bottom: 1rem;
}

.connect-card.done {
  border-color: var(--success);
  background: color-mix(in srgb, var(--success) 5%, transparent);
}

.connect-card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.connect-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.connect-btn {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s;
}

.connect-btn:hover { background: var(--accent-hover); }

/* Provider summary (BYOK confirmation) */
/* Divider */
.divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ===== MOBILE CENTERING (480px and below) ===== */
@media (max-width: 480px) {
  .container {
    padding: 1.5rem 0;
  }

  .step h2 {
    font-size: 1.25rem;
  }

  .card {
    padding: 0.875rem 1rem;
  }

}