:root {
  --color-bg: #f4f5f7;
  --color-surface: #ffffff;
  --color-border: #dde1e6;
  --color-text: #1f2430;
  --color-muted: #667085;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-danger: #dc2626;
  --color-success: #16a34a;
  --radius: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
}

a { color: var(--color-primary); }

/* Auth page */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 360px;
}

.auth-card h1 {
  margin-top: 0;
  font-size: 1.25rem;
}

/* App shell */
.app-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-header nav a {
  margin-left: 1rem;
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.9rem;
}

.app-main {
  max-width: 960px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card h2 {
  margin-top: 0;
}

/* Forms */
form label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

input[type="text"],
input[type="password"],
input[type="url"],
textarea,
select {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-surface);
}

textarea { min-height: 100px; resize: vertical; }

button, .btn {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 0.6rem 1.1rem;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
}

button:hover, .btn:hover { background: var(--color-primary-hover); }

button.secondary, .btn.secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

button.danger { background: var(--color-danger); }

.error { color: var(--color-danger); }
.success { color: var(--color-success); }
.muted { color: var(--color-muted); font-size: 0.9rem; }

/* Site grid */
.site-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.site-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: left;
}

.site-card h3 { margin: 0 0 0.25rem; font-size: 1rem; }

/* Wizard */
.wizard-steps {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.wizard-steps .step {
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-muted);
}

.wizard-steps .step.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

#preview-frame {
  width: 100%;
  min-height: 500px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
}

.code-textarea {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.85rem;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.topic-suggestions, .layout-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0;
}

.suggestion-chip {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font-size: 0.85rem;
  cursor: pointer;
}

.suggestion-chip:hover { background: #e9ecf1; }