* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --green: #27C37A; --green-hover: #1fa866; --green-light: #e8f8f0;
  --bg: #f5f6fa; --card-bg: #fff; --appbar-bg: #1a1d23;
  --text: #1a1d23; --text-secondary: #6b7280; --text-muted: #9ca3af;
  --border: #e5e7eb; --danger: #ef4444; --warning: #f59e0b;
  --shadow: 0 1px 3px rgba(0,0,0,0.1); --shadow-lg: 0 4px 12px rgba(0,0,0,0.12);
  --radius: 8px; --radius-lg: 12px;
  --sidebar-w: 280px; --sidebar-right-w: 300px; --appbar-h: 56px;
  --font: 'Inter', -apple-system, sans-serif;
}
html, body { height: 100%; font-family: var(--font); font-size: 14px; color: var(--text); background: var(--bg); }
#app { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }

/* App Bar */
.app-bar { display: flex; align-items: center; justify-content: space-between; height: var(--appbar-h); padding: 0 20px; background: var(--appbar-bg); color: #fff; flex-shrink: 0; }
.app-bar-left { display: flex; align-items: center; gap: 12px; }
.app-bar-right { display: flex; align-items: center; gap: 8px; }
.app-logo { font-weight: 600; font-size: 16px; letter-spacing: 0.3px; }
.badge { font-size: 11px; padding: 2px 8px; border-radius: 10px; background: rgba(39,195,122,0.15); color: var(--green); border: 1px solid rgba(39,195,122,0.3); }

/* Main Layout */
.main-layout { display: flex; flex: 1; overflow: hidden; }

/* Sidebars */
.sidebar { flex-shrink: 0; background: var(--card-bg); border-right: 1px solid var(--border); display: flex; flex-direction: column; overflow: hidden; }
.sidebar-left { width: var(--sidebar-w); }
.sidebar-right { width: var(--sidebar-right-w); border-right: none; border-left: 1px solid var(--border); }
.sidebar-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 16px 8px; }
.sidebar-header h4 { font-size: 14px; font-weight: 600; }
.sidebar-header .sidebar-actions { display: flex; gap: 4px; }
.sidebar-subtitle { font-size: 12px; color: var(--text-secondary); padding: 0 16px 8px; }
.schema-count { padding: 0 16px 6px; font-size: 12px; color: var(--text-muted); }
.schema-buttons { padding: 0 16px 10px; display: flex; gap: 6px; }
.schema-list { flex: 1; overflow-y: auto; padding: 0 12px 8px; }
.schema-status { padding: 10px 16px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-secondary); display: flex; align-items: center; gap: 6px; flex-shrink: 0; }

/* Tables in schema */
.table-card { margin-bottom: 8px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.table-card-header { display: flex; align-items: center; gap: 8px; padding: 10px 12px; cursor: pointer; user-select: none; }
.table-card-header:hover { background: #f9fafb; }
.table-card-header .checkbox { width: 16px; height: 16px; accent-color: var(--green); }
.table-card-header .table-name { font-weight: 500; font-size: 13px; flex: 1; }
.table-card-header .expand-icon { font-size: 10px; color: var(--text-muted); transition: transform 0.2s; }
.table-card-header .expand-icon.expanded { transform: rotate(90deg); }
.table-card-body { padding: 0 12px 12px; }
.table-card-body.hidden { display: none; }
.column-item { display: flex; align-items: center; gap: 6px; padding: 4px 0; font-size: 12px; color: var(--text-secondary); }
.column-item .col-icon { font-size: 14px; width: 18px; text-align: center; }
.column-item .col-name { font-weight: 500; }
.column-item .col-type { color: var(--text-muted); font-size: 11px; }
.more-columns { font-size: 11px; color: var(--text-muted); padding: 4px 0; }
.table-actions { padding-top: 6px; display: flex; gap: 6px; }

/* Content */
.content { flex: 1; overflow-y: auto; padding: 20px 24px; }

/* Banner */
.banner { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; font-size: 13px; }
.banner-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.banner-info { background: var(--green-light); color: #065f46; border: 1px solid #a7f3d0; }
.banner-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

/* Query Section */
.query-section { margin-bottom: 20px; }
.mode-toggle { display: flex; gap: 0; margin-bottom: 8px; }
.mode-btn { padding: 8px 20px; border: 1px solid var(--border); background: var(--card-bg); cursor: pointer; font-size: 13px; color: var(--text-secondary); }
.mode-btn:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.mode-btn:last-child { border-radius: 0 var(--radius) var(--radius) 0; }
.mode-btn.active { background: var(--green); color: #fff; border-color: var(--green); }
.input-row { display: flex; gap: 12px; align-items: flex-start; }
.input-wrapper { flex: 1; }
.query-textarea { width: 100%; padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius); font-family: var(--font); font-size: 14px; resize: vertical; min-height: 52px; outline: none; transition: border-color 0.2s; background: var(--card-bg); }
.query-textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(39,195,122,0.1); }
.query-textarea::placeholder { color: var(--text-muted); }
.validation-errors { margin-top: 6px; }
.validation-item { padding: 4px 8px; font-size: 12px; border-radius: 4px; margin-bottom: 2px; }
.validation-error { background: #fee2e2; color: #991b1b; }
.validation-warning { background: #fef3c7; color: #92400e; }

/* Table Preview */
.table-preview { margin-bottom: 20px; }
.table-preview table { width: 100%; border-collapse: collapse; font-size: 12px; }
.table-preview th { background: #f9fafb; padding: 8px 12px; text-align: left; font-weight: 500; border-bottom: 2px solid var(--border); }
.table-preview td { padding: 6px 12px; border-bottom: 1px solid var(--border); }

/* Cards */
.card { background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border); padding: 20px; margin-bottom: 16px; }
.card-explanation { }
.card-results { overflow-x: auto; }

/* Explanation Card */
.exp-header { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; font-weight: 600; }
.exp-explain { display: flex; gap: 8px; padding: 12px 0; border-bottom: 1px solid var(--border); margin-bottom: 12px; }
.exp-explain .exp-text { font-size: 13px; line-height: 1.6; color: var(--text-secondary); }
.sql-block { background: #1a1d23; border-radius: var(--radius); padding: 16px; position: relative; margin-bottom: 16px; }
.sql-block-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.sql-block-header span { color: #9ca3af; font-size: 12px; display: flex; align-items: center; gap: 6px; }
.sql-code { color: var(--green); font-family: 'Courier New', monospace; font-size: 13px; white-space: pre-wrap; word-break: break-all; line-height: 1.5; }
.copy-btn { background: none; border: 1px solid #4b5563; color: #d1d5db; padding: 4px 10px; border-radius: 4px; cursor: pointer; font-size: 11px; }
.copy-btn:hover { background: #374151; }
.exp-actions { display: flex; gap: 10px; }

/* Results Table */
.results-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.results-table th { background: var(--green); color: #fff; padding: 10px 14px; text-align: left; font-weight: 500; white-space: nowrap; }
.results-table td { padding: 8px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.results-table tr:hover td { background: #f9fafb; }
.results-table .row-count { padding: 8px 14px; font-size: 12px; color: var(--text-secondary); }
.no-results { padding: 40px; text-align: center; color: var(--text-muted); }

/* Chart Section */
.chart-section { background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border); padding: 20px; margin-bottom: 16px; }
.chart-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.chart-label { font-weight: 600; font-size: 14px; }
.chart-type-buttons { display: flex; gap: 0; }
.chart-type-btn { padding: 6px 14px; border: 1px solid var(--border); background: var(--card-bg); cursor: pointer; font-size: 12px; color: var(--text-secondary); }
.chart-type-btn:first-child { border-radius: 6px 0 0 6px; }
.chart-type-btn:last-child { border-radius: 0 6px 6px 0; }
.chart-type-btn.active { background: var(--green); color: #fff; border-color: var(--green); }
.chart-canvas { max-height: 350px; max-width: 100%; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 12px; justify-content: center; }
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-secondary); }
.legend-color { width: 12px; height: 12px; border-radius: 2px; }

/* Loading */
.loading-indicator { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 40px; color: var(--text-secondary); }
.loading-spinner { width: 24px; height: 24px; border: 3px solid var(--border); border-top-color: var(--green); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Error */
.error-display { padding: 16px; border-radius: var(--radius); margin-bottom: 16px; }
.error-security { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.error-regular { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: var(--radius); border: none; cursor: pointer; font-family: var(--font); font-size: 13px; font-weight: 500; transition: all 0.15s; }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-hover); }
.btn-secondary { background: #f3f4f6; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #e5e7eb; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-ghost { background: transparent; color: #d1d5db; }
.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-secondary); }
.btn-outline:hover { background: #f3f4f6; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-xs { padding: 2px 8px; font-size: 11px; }
.btn-lg { padding: 10px 24px; }
.btn-icon { padding: 6px 10px; background: none; border: 1px solid var(--border); cursor: pointer; border-radius: 4px; }

/* FAB */
.fab { position: fixed; bottom: 24px; right: 24px; padding: 12px 20px; border-radius: 28px; border: none; cursor: pointer; font-family: var(--font); font-size: 14px; font-weight: 500; z-index: 100; box-shadow: var(--shadow-lg); transition: all 0.2s; }
.fab:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.15); }
.fab-warning { background: #6b7280; color: #fff; }
.fab-ready { background: var(--green); color: #fff; }

/* Dialogs */
.dialog-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: flex; align-items: center; justify-content: center; z-index: 1000; }
.dialog-overlay.hidden { display: none; }
.dialog { background: var(--card-bg); border-radius: var(--radius-lg); padding: 24px; width: 90%; max-width: 440px; max-height: 90vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.dialog-lg { max-width: 560px; }
.dialog-sm { max-width: 300px; text-align: center; }
.dialog h3 { margin-bottom: 16px; font-size: 18px; }
.dialog-header { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.dialog-header h3 { margin-bottom: 0; }
.dialog-icon { font-size: 20px; }
.dialog-body { margin-bottom: 16px; }
.dialog-actions { display: flex; gap: 10px; justify-content: flex-end; padding-top: 12px; border-top: 1px solid var(--border); }

/* Form elements */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 4px; color: var(--text); }
.input { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius); font-family: var(--font); font-size: 13px; outline: none; background: var(--card-bg); }
.input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(39,195,122,0.1); }
.input-group { display: flex; gap: 0; }
.input-group .input { border-right: none; border-radius: var(--radius) 0 0 var(--radius); }
.input-group .btn-icon { border-radius: 0 var(--radius) var(--radius) 0; }
.hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.link { font-size: 12px; color: var(--green); text-decoration: none; }
.link:hover { text-decoration: underline; }

/* Provider Grid */
.provider-grid { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.provider-btn { padding: 8px 16px; border: 2px solid var(--border); border-radius: var(--radius); background: var(--card-bg); cursor: pointer; font-size: 12px; font-weight: 500; transition: all 0.15s; font-family: var(--font); }
.provider-btn.active { border-color: var(--green); background: var(--green-light); color: var(--green); }

/* Info Box */
.info-box { padding: 12px; background: #eff6ff; border-radius: var(--radius); font-size: 12px; color: #1e40af; margin-bottom: 14px; }

/* Chip */
.chip { display: inline-flex; align-items: center; padding: 2px 10px; border-radius: 10px; font-size: 11px; background: rgba(39,195,122,0.15); color: var(--green); border: 1px solid rgba(39,195,122,0.3); }

/* Dot */
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-green { background: var(--green); }

/* Reports */
.reports-list { flex: 1; overflow-y: auto; padding: 8px 12px; }
.report-tile { padding: 12px; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 8px; cursor: pointer; transition: all 0.15s; }
.report-tile:hover { border-color: var(--green); background: #f9fafb; }
.report-tile-header { display: flex; align-items: center; gap: 6px; margin-bottom: 4px; }
.report-tile-header .dot { flex-shrink: 0; }
.report-tile-name { font-weight: 500; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.report-tile-query { font-size: 12px; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 4px; }
.report-tile-footer { display: flex; justify-content: space-between; align-items: center; }
.report-tile-time { font-size: 11px; color: var(--text-muted); }
.report-tile-delete { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 14px; padding: 2px; }
.report-tile-delete:hover { color: var(--danger); }
.reports-empty { padding: 40px 16px; text-align: center; color: var(--text-muted); }
.reports-empty .empty-icon { font-size: 32px; margin-bottom: 8px; }

/* SVG Icons */
.sidebar-header svg, .exp-header svg, .chart-label svg, .dialog-header svg { margin-right: 6px; }
.btn svg, .fab svg { vertical-align: middle; margin-right: 4px; }
.run-icon svg { fill: #fff; }

/* Login Overlay */
.login-overlay { position: fixed; inset: 0; background: var(--bg); display: flex; align-items: center; justify-content: center; z-index: 2000; }
.login-card { background: var(--card-bg); border-radius: 16px; padding: 40px; width: 90%; max-width: 400px; box-shadow: 0 20px 60px rgba(0,0,0,0.08); }
.login-header { text-align: center; margin-bottom: 32px; }
.login-header h2 { font-size: 22px; font-weight: 700; margin-top: 8px; }
.login-subtitle { color: var(--text-muted); font-size: 14px; margin-top: 4px; }
.login-form { }
.login-error { padding: 10px 14px; background: #fee2e2; border-radius: var(--radius); color: #991b1b; font-size: 13px; margin-bottom: 12px; }
.login-switch { text-align: center; font-size: 13px; color: var(--text-secondary); margin-top: 16px; }
.login-switch a { color: var(--green); text-decoration: none; }
.login-switch a:hover { text-decoration: underline; }
.login-help { text-align: center; margin-top: 16px; font-size: 13px; color: var(--text-secondary); }
.login-help a { color: var(--green); text-decoration: none; }
.login-help a:hover { text-decoration: underline; }
.login-help p + p a { color: var(--text-muted); font-size: 12px; }
.btn-full { width: 100%; justify-content: center; padding: 12px; }
.payment-info { text-align: center; }
.payment-info h3 { margin: 12px 0 6px; font-size: 18px; }
.payment-info p { color: var(--text-secondary); font-size: 13px; margin-bottom: 20px; }
.pricing-card { background: var(--green-light); border: 2px solid var(--green); border-radius: var(--radius-lg); padding: 20px; margin-bottom: 8px; }
.pricing-card .price { font-size: 28px; font-weight: 700; color: var(--text); }
.pricing-card .price span { font-size: 14px; font-weight: 400; color: var(--text-secondary); }

/* Login transition */
#login-overlay, #app { transition: opacity 0.3s; }

/* Hidden */
.hidden { display: none !important; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9ca3af; }

/* Responsive */
@media (max-width: 1024px) {
  .sidebar-right { display: none; }
}
@media (max-width: 768px) {
  .sidebar-left { display: none; }
  .content { padding: 16px; }
  .input-row { flex-direction: column; }
  .app-bar-right .btn-ghost { padding: 4px 6px; font-size: 11px; }
}

/* Test generation area */
.test-gen-section { margin-top: 16px; }
.test-gen-section textarea { width: 100%; min-height: 60px; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius); font-family: var(--font); font-size: 13px; resize: vertical; outline: none; }
.test-gen-section textarea:focus { border-color: var(--green); }
.test-result { background: #1a1d23; border-radius: var(--radius); padding: 12px; margin-top: 8px; }
.test-result .sql-code { font-size: 12px; }