/* DB Designer - Main Stylesheet */
:root {
    --bg-primary: #1e1e2e;
    --bg-secondary: #2b2b3d;
    --bg-tertiary: #363649;
    --bg-hover: #45455a;
    --text-primary: #cdd6f4;
    --text-secondary: #a6adc8;
    --text-muted: #6c7086;
    --accent: #89b4fa;
    --accent-hover: #74c7ec;
    --green: #a6e3a1;
    --red: #f38ba8;
    --yellow: #f9e2af;
    --orange: #fab387;
    --purple: #cba6f7;
    --border: #45455a;
    --shadow: rgba(0,0,0,0.3);
    --pk-color: #f9e2af;
    --fk-color: #89b4fa;
    --table-header: #2b579a;
    --table-bg: #2b2b3d;
    --rel-line: #89b4fa;
}

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

body {
    font-family: 'Segoe UI', 'Malgun Gothic', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
}

/* Layout */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    z-index: 100;
}

.toolbar h1 {
    font-size: 16px;
    font-weight: 600;
    color: var(--accent);
    margin-right: 16px;
    white-space: nowrap;
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 8px;
}

.main-area {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-search {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

.sidebar-search input {
    width: 100%;
    padding: 6px 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 12px;
    outline: none;
}

.sidebar-search input:focus {
    border-color: var(--accent);
}

.table-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
}

.table-list-item {
    padding: 6px 16px;
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-left: 3px solid transparent;
    transition: all 0.15s;
}

.table-list-item:hover {
    background: var(--bg-hover);
}

.table-list-item.active {
    background: var(--bg-tertiary);
    border-left-color: var(--accent);
}

.table-list-item .icon {
    color: var(--accent);
    font-size: 11px;
    width: 16px;
}

.table-list-item .name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.table-list-item .col-count {
    color: var(--text-muted);
    font-size: 11px;
}

/* ERD Canvas */
.erd-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle, var(--bg-tertiary) 1px, transparent 1px);
    background-size: 20px 20px;
}

.erd-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* SVG Table */
.erd-table {
    cursor: move;
}

.erd-table .table-header {
    fill: var(--table-header);
}

.erd-table .table-body {
    fill: var(--table-bg);
    stroke: var(--border);
    stroke-width: 1;
}

.erd-table.selected .table-body {
    stroke: var(--accent);
    stroke-width: 2;
}

.erd-table .table-name {
    fill: white;
    font-size: 12px;
    font-weight: 600;
    font-family: 'Segoe UI', sans-serif;
}

.erd-table .col-name {
    fill: var(--text-primary);
    font-size: 11px;
    font-family: 'Consolas', 'Courier New', monospace;
}

.erd-table .col-type {
    fill: var(--text-muted);
    font-size: 10px;
    font-family: 'Consolas', 'Courier New', monospace;
}

.erd-table .col-pk {
    fill: var(--pk-color);
    font-weight: 600;
}

.erd-table .col-fk {
    fill: var(--fk-color);
}

.erd-table .pk-icon {
    fill: var(--pk-color);
    font-size: 10px;
}

/* Relationship lines */
.rel-line {
    stroke: var(--rel-line);
    stroke-width: 2;
    fill: none;
    opacity: 0.8;
    transition: stroke-width 0.15s, opacity 0.15s;
}

.rel-line:hover {
    stroke-width: 3.5;
    opacity: 1;
    cursor: pointer;
    filter: drop-shadow(0 0 4px var(--rel-line));
}

.rel-line.identifying {
    stroke: var(--accent);
}

.rel-line.non-identifying {
    stroke-dasharray: 8 4;
}

.rel-marker {
    fill: var(--rel-line);
}

/* Detail Panel */
.detail-panel {
    width: 350px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width 0.2s;
}

.detail-panel.collapsed {
    width: 0;
    overflow: hidden;
}

.detail-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.detail-header h3 {
    font-size: 14px;
    font-weight: 600;
}

.detail-body {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.detail-section {
    margin-bottom: 16px;
}

.detail-section h4 {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

/* Form elements */
.form-group {
    margin-bottom: 10px;
}

.form-group label {
    display: block;
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 6px 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 12px;
    outline: none;
}

.form-group input:focus, .form-group select:focus {
    border-color: var(--accent);
}

/* Column table in detail */
.col-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 11px;
}

.col-table th {
    text-align: left;
    padding: 6px 8px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
}

.col-table td {
    padding: 5px 8px;
    border-bottom: 1px solid var(--bg-tertiary);
}

.col-table tr:hover {
    background: var(--bg-hover);
}

.col-table .pk-badge {
    color: var(--pk-color);
    font-weight: 700;
    font-size: 10px;
}

.col-table .fk-badge {
    color: var(--fk-color);
    font-weight: 700;
    font-size: 10px;
}

/* Buttons */
.btn {
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

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

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

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-hover);
}

.btn-danger {
    background: var(--red);
    color: var(--bg-primary);
}

.btn-sm {
    padding: 4px 8px;
    font-size: 11px;
}

.btn-icon {
    padding: 4px 8px;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    cursor: pointer;
    border-radius: 4px;
}

.btn-icon:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    min-width: 500px;
    max-width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 16px 48px var(--shadow);
}

.modal h2 {
    font-size: 16px;
    margin-bottom: 16px;
    color: var(--accent);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 16px;
}

/* Toast notifications */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 2000;
}

.toast {
    padding: 10px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-top: 8px;
    font-size: 13px;
    box-shadow: 0 4px 12px var(--shadow);
    animation: slideIn 0.3s ease;
}

.toast.success { border-left: 3px solid var(--green); }
.toast.error { border-left: 3px solid var(--red); }
.toast.info { border-left: 3px solid var(--accent); }

@keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Compare diff */
.diff-added { color: var(--green); }
.diff-removed { color: var(--red); }
.diff-changed { color: var(--yellow); }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--bg-hover); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* File picker */
.file-list {
    list-style: none;
    max-height: 300px;
    overflow-y: auto;
}

.file-list li {
    padding: 8px 12px;
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}

.file-list li:hover {
    background: var(--bg-hover);
}

.file-list li .file-size {
    color: var(--text-muted);
    font-size: 11px;
}

/* Status bar */
.status-bar {
    display: flex;
    align-items: center;
    padding: 4px 16px;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border);
    font-size: 11px;
    color: var(--text-muted);
    gap: 16px;
    flex-shrink: 0;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Zoom controls */
.zoom-controls {
    position: absolute;
    bottom: 40px;
    right: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 50;
}

.zoom-controls button {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 16px;
}

.zoom-controls button:hover {
    background: var(--bg-hover);
}

/* Minimap */
.minimap {
    position: absolute;
    bottom: 40px;
    left: 16px;
    width: 180px;
    height: 120px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    z-index: 50;
    overflow: hidden;
    opacity: 0.8;
}

.minimap:hover { opacity: 1; }