/* ===================================================================
   format.css  —  Layout, typography, structural formatting
   =================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; line-height: 1.55; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background: var(--bg-page); color: var(--text-primary); min-height: 100vh; }
a { color: var(--text-link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header { background: var(--bg-header); color: var(--text-header); padding: 0; box-shadow: var(--shadow-md); position: sticky; top: 0; z-index: 100; }
.header-top { display: flex; align-items: center; justify-content: space-between; padding: 10px 24px; }
.header-brand { display: flex; align-items: center; gap: 12px; }
.header-brand img { height: 36px; width: auto; border-radius: 4px; }
.header-brand h1 { font-size: 1.15rem; font-weight: 600; color: var(--text-light); letter-spacing: 0.3px; }
.header-nav { display: flex; gap: 12px; align-items: center; }
.header-nav a, .header-nav button { font-size: 0.82rem; color: var(--text-header); background: transparent; border: 1px solid rgba(255,255,255,0.25); padding: 5px 14px; border-radius: 4px; cursor: pointer; transition: background 0.2s, color 0.2s; }
.header-nav a:hover, .header-nav button:hover { background: rgba(255,255,255,0.15); text-decoration: none; border-color: rgba(255,255,255,0.4); }
.header-nav .header-nav-disabled { font-size: 0.82rem; color: rgba(255,255,255,0.5); background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.18); padding: 5px 14px; border-radius: 4px; cursor: not-allowed; user-select: none; }
.header-status { background: var(--bg-header-accent); padding: 5px 24px; font-size: 0.78rem; display: flex; justify-content: space-between; align-items: center; color: var(--text-header); border-top: 1px solid rgba(255,255,255,0.08); }
.header-status .status-left, .header-status .status-right { display: flex; gap: 16px; }
.header-status .status-label { opacity: 0.7; }
.header-status .status-value { font-weight: 600; }

/* Nav dropdown */
.nav-dropdown { position: relative; display: inline-block; }
.nav-dropdown-btn { font-size: 0.82rem; color: var(--text-header); background: transparent; border: 1px solid rgba(255,255,255,0.25); padding: 5px 14px; border-radius: 4px; cursor: pointer; }
.nav-dropdown-btn:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.4); }
.nav-dropdown-menu { display: none; position: absolute; top: 100%; right: 0; background: var(--bg-card); border: 1px solid var(--border-medium); border-radius: 6px; box-shadow: var(--shadow-md); min-width: 180px; z-index: 200; margin-top: 4px; }
.nav-dropdown-menu a { display: block; padding: 8px 16px; color: var(--text-primary); font-size: 0.85rem; text-decoration: none; }
.nav-dropdown-menu a:hover { background: var(--accent-light); text-decoration: none; }
.nav-dropdown:hover .nav-dropdown-menu { display: block; }

/* Code block */
.code-block { background: #1e293b; color: #e2e8f0; padding: 16px; border-radius: 6px; font-family: 'Consolas', 'Monaco', monospace; font-size: 0.82rem; overflow-x: auto; white-space: pre; line-height: 1.5; margin: 12px 0; max-height: 500px; overflow-y: auto; }
.code-block .kw { color: #93c5fd; } .code-block .str { color: #86efac; } .code-block .cm { color: #64748b; }

/* Textarea SQL */
.sql-editor { width: 100%; min-height: 150px; font-family: 'Consolas', 'Monaco', monospace; font-size: 0.88rem; padding: 12px; border: 1px solid var(--border-medium); border-radius: 4px; background: var(--bg-input); color: var(--text-primary); resize: vertical; }

/* Stat cards */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 8px; padding: 16px; text-align: center; }
.stat-card .stat-value { font-size: 1.8rem; font-weight: 700; color: var(--accent-primary); }
.stat-card .stat-label { font-size: 0.8rem; color: var(--text-secondary); margin-top: 4px; }

/* Copy button */
.copy-btn { position: absolute; top: 8px; right: 8px; padding: 4px 10px; font-size: 0.72rem; background: rgba(255,255,255,0.15); color: #e2e8f0; border: 1px solid rgba(255,255,255,0.2); border-radius: 4px; cursor: pointer; }
.copy-btn:hover { background: rgba(255,255,255,0.25); }
.code-wrap { position: relative; }

/* Main */
.main-content { max-width: 1240px; margin: 24px auto; padding: 0 24px; }

/* Cards */
.card { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 8px; box-shadow: var(--shadow-sm); padding: 24px; margin-bottom: 24px; }
.card-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 16px; color: var(--text-primary); border-bottom: 2px solid var(--accent-light); padding-bottom: 8px; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 9px 12px; border: 1px solid var(--border-medium); border-radius: 4px; background: var(--bg-input); font-size: 0.9rem; color: var(--text-primary); transition: border-color 0.2s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent-primary); box-shadow: 0 0 0 3px rgba(43,108,176,0.15); }

/* Buttons */
.btn { display: inline-block; padding: 8px 20px; font-size: 0.88rem; font-weight: 600; border: none; border-radius: 4px; cursor: pointer; transition: background 0.2s, transform 0.1s; text-align: center; text-decoration: none; }
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent-primary); color: var(--text-light); }
.btn-primary:hover { background: var(--accent-hover); color: var(--text-light); text-decoration: none; }
.btn-danger { background: var(--accent-danger); color: var(--text-light); }
.btn-danger:hover { background: var(--accent-danger-hover); color: var(--text-light); text-decoration: none; }
.btn-secondary { background: var(--bg-sidebar); color: var(--text-primary); border: 1px solid var(--border-medium); }
.btn-secondary:hover { background: var(--border-light); text-decoration: none; }
.btn-info { background: var(--accent-info); color: var(--text-light); }
.btn-info:hover { background: var(--accent-info-hover); color: var(--text-light); text-decoration: none; }
.btn-success { background: var(--accent-success); color: var(--text-light); }
.btn-success:hover { background: var(--accent-success-hover); color: var(--text-light); text-decoration: none; }
.btn-sm { padding: 5px 12px; font-size: 0.8rem; }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.data-table thead th { background: var(--accent-primary); color: var(--text-light); font-weight: 600; padding: 10px 12px; text-align: left; border-bottom: 2px solid var(--accent-hover); position: sticky; top: 0; white-space: nowrap; }
.data-table tbody td { padding: 9px 12px; border-bottom: 1px solid var(--border-light); max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.data-table tbody tr:nth-child(even) { background: var(--bg-card-alt); }
.data-table tbody tr:hover { background: var(--accent-light); }

/* Sortable headers */
.sortable-th { cursor: pointer; user-select: none; }
.sortable-th:hover { background: var(--accent-hover); }
.sort-arrow { font-size: 0.65rem; opacity: 0.6; margin-left: 4px; }

/* Search input */
.search-input { padding: 7px 12px; border: 1px solid var(--border-medium); border-radius: 4px; font-size: 0.88rem; background: var(--bg-input); color: var(--text-primary); flex: 1; }
.search-input:focus { outline: none; border-color: var(--accent-primary); box-shadow: 0 0 0 3px rgba(43,108,176,0.15); }

.schema-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.schema-table th { background: var(--accent-info); color: var(--text-light); padding: 8px 12px; text-align: left; }
.schema-table td { padding: 7px 12px; border-bottom: 1px solid var(--border-light); }
.schema-table tbody tr:nth-child(even) { background: var(--bg-card-alt); }

/* Alerts */
.alert { padding: 12px 18px; border-radius: 5px; margin-bottom: 18px; font-size: 0.88rem; }
.alert-success { background: #E6FFED; color: #22543D; border: 1px solid #C6F6D5; }
.alert-danger  { background: #FFF5F5; color: #742A2A; border: 1px solid #FED7D7; }
.alert-info    { background: #EBF8FF; color: #2A4365; border: 1px solid #BEE3F8; }

/* Pagination */
.pagination { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; align-items: center; }
.pagination a, .pagination span { padding: 6px 12px; border: 1px solid var(--border-medium); border-radius: 4px; font-size: 0.82rem; color: var(--text-primary); }
.pagination a:hover { background: var(--accent-primary); color: var(--text-light); text-decoration: none; border-color: var(--accent-primary); }
.pagination .active { background: var(--accent-primary); color: var(--text-light); border-color: var(--accent-primary); font-weight: 600; }

/* Login */
.login-wrapper { display: flex; align-items: center; justify-content: center; min-height: calc(100vh - 90px); padding: 20px; }
.login-card { width: 100%; max-width: 440px; }

/* Breadcrumb */
.breadcrumb { font-size: 0.85rem; margin-bottom: 18px; color: var(--text-secondary); }
.breadcrumb a { color: var(--accent-primary); }
.breadcrumb span { margin: 0 6px; color: var(--border-dark); }

/* Utility */
.text-muted { color: var(--text-secondary); }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; }
.flex { display: flex; } .gap-1 { gap: 8px; } .gap-2 { gap: 16px; }
.flex-wrap { flex-wrap: wrap; } .items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* Form group sizing helpers */
.form-group-flex     { flex: 1; min-width: 180px; }
.form-group-flex-sm  { flex: 1; min-width: 150px; }
.form-group-flex-lg  { flex: 1; min-width: 280px; }
.form-group-fixed    { min-width: 140px; }
.form-group-fixed-md { min-width: 160px; }
.form-group-fixed-sm { min-width: 120px; }
.form-group-no-mb    { margin-bottom: 0; }

/* Button alignment in forms */
.btn-form-aligned { margin-top: 16px; }

/* Overflow wrapper for wide tables */
.overflow-x { overflow-x: auto; }

/* Full-width button */
.btn-block { width: 100%; }

/* Card title variants */
.card-title-plain { font-size: 1.1rem; font-weight: 600; color: var(--text-primary); border: none; margin: 0; padding: 0; }
.card-title-sm    { font-size: 1rem; }

/* Inline subtitle / muted span inside titles */
.title-meta  { font-weight: 400; font-size: 0.82rem; }
.title-count { font-weight: 400; font-size: 0.85rem; }

/* Hidden form (e.g. download trigger) */
.hidden-form { display: none; }

/* Export panel */
.export-panel { background: var(--bg-card-alt); border: 1px solid var(--border-medium); border-radius: 6px; padding: 12px; }
.export-panel .export-hint { font-size: 0.78rem; margin: 6px 0 0; }
.export-label { font-size: 0.82rem; font-weight: 600; }

/* Mono input (for file paths) */
.input-mono { font-family: 'Consolas', 'Monaco', monospace; font-size: 0.85rem; }

/* Title actions float right */
.title-actions { float: right; display: flex; gap: 6px; }

/* Row actions cell */
.cell-actions { white-space: nowrap; }

/* Schema diff mismatch row */
.row-mismatch { background: #FFF5F5; }

/* Disabled / read-only input look */
.input-disabled { background: var(--bg-card-alt); }

/* TOC columns */
.toc-list { columns: 3; list-style: none; padding: 0; font-size: 0.85rem; }

/* Search filter max-width */
.search-filter { max-width: 300px; }

/* Search form constraint */
.search-form { max-width: 500px; }

@media (max-width: 768px) {
    .main-content { padding: 0 12px; }
    .header-top { padding: 8px 14px; flex-wrap: wrap; gap: 8px; }
    .header-status { padding: 4px 14px; flex-wrap: wrap; gap: 4px; }
    .data-table { font-size: 0.8rem; }
    .data-table thead th, .data-table tbody td { padding: 6px 8px; }
    .toc-list { columns: 1; }
}