:root {
    --bg: #f8f9fa;
    --card-bg: #fff;
    --text: #212529;
    --text-muted: #6c757d;
    --primary: #ff6600;
    --primary-hover: #e55b00;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #0d6efd;
    --border: #dee2e6;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

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

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

/* Layout */
.container { max-width: 1100px; margin: 0 auto; padding: 24px; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 24px; }

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}
.header h1 { font-size: 1.5rem; font-weight: 700; }
.header .user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.875rem;
    color: var(--text-muted);
}
.header .user-info img { width: 32px; height: 32px; border-radius: 50%; }
.header a { color: var(--primary); text-decoration: none; }
.header a:hover { text-decoration: underline; }

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}
.card:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.12); }
.card h2 { font-size: 1.2rem; margin-bottom: 4px; }
.card .meta { color: var(--text-muted); font-size: 0.85rem; }

/* Status badges */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-draft { background: #e9ecef; color: #495057; }
.badge-approved { background: #fff3cd; color: #856404; }
.badge-published { background: #d4edda; color: #155724; }
.badge-archived { background: #f8d7da; color: #721c24; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-sm { padding: 4px 12px; font-size: 0.8rem; }
.btn-lg { padding: 12px 24px; font-size: 1rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 4px;
    font-size: 0.875rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.875rem;
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-group input[type="color"] {
    width: 48px;
    height: 36px;
    padding: 2px;
    cursor: pointer;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Toolbar */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    gap: 12px;
}
.toolbar .filters { display: flex; gap: 8px; align-items: center; }
.toolbar select, .toolbar input {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.85rem;
}

/* Popup list item */
.popup-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    color: inherit;
}
.popup-item:last-child { border-bottom: none; }
.popup-item:hover { background: #f8f9fa; }
.popup-info h3 { font-size: 1rem; font-weight: 600; }
.popup-info .store { color: var(--text-muted); font-size: 0.85rem; }
.popup-actions { display: flex; gap: 8px; align-items: center; }

/* Editor layout */
.editor-layout {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 24px;
    min-height: calc(100vh - 120px);
}
.editor-form {
    overflow-y: auto;
    max-height: calc(100vh - 120px);
    padding-right: 12px;
}
.editor-preview {
    position: sticky;
    top: 24px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.editor-preview .preview-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.editor-preview iframe {
    width: 100%;
    flex: 1;
    border: none;
    min-height: 500px;
}

/* Section headers in editor */
.section-header {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin: 24px 0 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
}
.section-header:first-child { margin-top: 0; }

/* Color field with preview */
.color-field {
    display: flex;
    align-items: center;
    gap: 8px;
}
.color-field input[type="text"] { flex: 1; }

/* Login page */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}
.login-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    max-width: 400px;
    width: 100%;
    box-shadow: var(--shadow);
}
.login-card h1 { margin-bottom: 8px; }
.login-card p { color: var(--text-muted); margin-bottom: 24px; }

.google-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    color: var(--text);
    transition: box-shadow 0.15s;
}
.google-btn:hover { box-shadow: 0 2px 4px rgba(0,0,0,0.15); }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}
.empty-state h2 { margin-bottom: 8px; }

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 100;
    align-items: center;
    justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}
.modal h2 { margin-bottom: 16px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; }

/* Toast notification */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 20px;
    border-radius: var(--radius);
    color: #fff;
    font-size: 0.875rem;
    z-index: 200;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }

/* Template type tabs */
.tab-group {
    display: flex;
    gap: 4px;
    background: var(--bg);
    padding: 4px;
    border-radius: var(--radius);
}
.tab-btn {
    flex: 1;
    padding: 6px 12px;
    border: none;
    border-radius: 6px;
    background: transparent;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.15s;
}
.tab-btn.active { background: var(--card-bg); color: var(--text); box-shadow: var(--shadow); }
.tab-btn:hover:not(.active) { color: var(--text); }

/* Subsection header in forms */
.subsection {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text-muted);
    margin: 12px 0 8px;
    padding-top: 8px;
    border-top: 1px dashed var(--border);
}

/* URL rule rows */
.url-rule-row {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 8px;
}
.url-rule-row select { width: 120px; flex-shrink: 0; }
.url-rule-row input { flex: 1; }

/* 3-column form row */
.form-row { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); }

/* Editor form wider for v1.2 */
.editor-layout { grid-template-columns: 500px 1fr; }

/* Responsive */
@media (max-width: 900px) {
    .editor-layout {
        grid-template-columns: 1fr;
    }
    .editor-preview {
        position: static;
        min-height: 400px;
    }
}
@media (max-width: 600px) {
    .container { padding: 16px; }
    .header { flex-direction: column; gap: 8px; }
    .form-row { grid-template-columns: 1fr; }
}