:root {
    --bg-primary: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent: #0284c7;
    --accent-hover: #0369a1;
    --panel-bg: #ffffff;
    --border-color: #e2e8f0;
    --success: #16a34a;
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.site-header {
    background-color: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1.2rem 0;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-brand h1 {
    font-size: 1.5rem;
    color: var(--accent);
    margin: 0;
}

.header-brand .tagline {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.site-header nav a {
    margin-left: 1.5rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
}

.site-header nav a:hover {
    color: var(--accent);
}

.hero {
    padding: 3rem 0 2rem;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.app-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0 4rem;
}

@media (max-width: 768px) {
    .app-layout {
        grid-template-columns: 1fr;
    }
}

.config-panel, .checklist-panel {
    background: var(--panel-bg);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.config-panel h3, .checklist-panel h3 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    border-bottom: 2px solid var(--bg-primary);
    padding-bottom: 0.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    background-color: #fff;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    font-weight: normal;
    margin-bottom: 0.5rem;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 0.75rem;
    width: 1.2rem;
    height: 1.2rem;
}

.btn-primary {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.2s;
}

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

.btn-secondary {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
}

.btn-secondary:hover {
    background-color: #e2e8f0;
}

.empty-state {
    text-align: center;
    color: var(--text-secondary);
    padding: 3rem 1rem;
    font-style: italic;
}

.hidden {
    display: none !important;
}

.todo-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.todo-list li {
    display: flex;
    align-items: flex-start;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.todo-list input[type="checkbox"] {
    margin-top: 0.3rem;
    margin-right: 1rem;
    width: 1.2rem;
    height: 1.2rem;
    cursor: pointer;
}

.todo-list .item-desc {
    flex: 1;
}

.todo-list .item-title {
    font-weight: 600;
    display: block;
}

.todo-list .item-note {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: block;
}

.todo-list li.checked .item-title,
.todo-list li.checked .item-note {
    text-decoration: line-through;
    color: var(--text-secondary);
    opacity: 0.7;
}

.list-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.guide-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

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

.guide-content h3, .guide-content h4, .guide-sidebar h4 {
    margin: 1.5rem 0 1rem;
    color: var(--accent);
}

.guide-content p {
    margin-bottom: 1rem;
}

.guide-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.guide-content li {
    margin-bottom: 0.5rem;
}

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

.connector-card h5 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.connector-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

.site-footer {
    background-color: var(--panel-bg);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.site-footer nav {
    margin-top: 1rem;
}

.site-footer nav a {
    margin: 0 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
}

.site-footer nav a:hover {
    text-decoration: underline;
}

@media print {
    .site-header, .hero, .config-panel, .list-actions, .guide-section, .site-footer {
        display: none !important;
    }
    .app-layout {
        display: block;
    }
    .checklist-panel {
        border: none;
        box-shadow: none;
        padding: 0;
    }
    body {
        background: white;
    }
}


/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}