@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
    --bg-primary: #f4f4f4;
    --bg-secondary: #ffffff;
    --bg-tertiary: #ececec;
    --text-primary: #0a0a0a;
    --text-secondary: #565656;
    --border-color: #d0d0d0;
    --accent: #0a0a0a;
    --accent-hover: #1a1a1a;
    --shadow: rgba(0, 0, 0, 0.04);
    --card-radius: 8px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0b0b0b;
        --bg-secondary: #0f0f0f;
        --bg-tertiary: #161616;
        --text-primary: #f5f5f5;
        --text-secondary: #a0a0a0;
        --border-color: #1e1e1e;
        --accent: #f5f5f5;
        --accent-hover: #ffffff;
        --shadow: rgba(0, 0, 0, 0.25);
    }
}

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

body {
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Login */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: var(--bg-primary);
}

.login-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 18px 48px var(--shadow);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header i {
    font-size: 52px;
    margin-bottom: 12px;
    color: var(--text-primary);
}


.login-header h1 {
    font-size: 24px;
    font-weight: 600;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group i {
    margin-right: 8px;
}

input[type="text"],
input[type="password"],
select,
textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 0;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--border-color);
    box-shadow: none;
    background: var(--bg-secondary);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 0;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

.btn-compact {
    padding: 8px 10px;
    gap: 6px;
    font-size: 13px;
    border-radius: 0;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-secondary);
    justify-content: center;
    box-shadow: none;
    border-radius: 0;
}

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

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

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

.login-box .btn-primary {
    width: 100%;
}

.btn-icon {
    padding: 10px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.alert {
    padding: 12px;
    border-radius: 0;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    border-left: 4px solid var(--accent);
}

.alert-error {
    background: var(--bg-tertiary);
    border-color: var(--text-secondary);
}

/* Dashboard */
.dashboard {
    display: flex;
    height: 100vh;
    width: 100%;
    background: var(--bg-primary);
}

.sidebar {
    width: 240px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    height: 100vh;
}

.sidebar-header {
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-header i {
    font-size: 22px;
    color: var(--text-primary);
}

.sidebar-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.sidebar-section {
    padding: 10px 12px;
}

.sidebar-title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-secondary);
}

.tables-section {
    flex: 1;
    padding: 10px 12px;
    overflow-y: auto;
}

.tables-section h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: 0.2px;
}

.tables-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    position: sticky;
    top: 0;
    padding-bottom: 6px;
    background: var(--bg-secondary);
    z-index: 2;
}

.table-actions-inline {
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
}

.tables-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    overflow-y: auto;
}

.table-item {
    padding: 10px 12px;
    border-radius: 0;
    cursor: pointer;
    transition: all 0.15s;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-secondary);
}

.table-item:last-child {
    border-bottom: none;
}

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

.table-item.active {
    background: var(--accent);
    color: var(--bg-secondary);
}

.table-item.active i {
    color: var(--bg-secondary);
}

.table-item i {
    margin-right: 8px;
}

.sidebar-footer {
    margin-top: auto;
    padding: 12px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background: var(--bg-secondary);
    height: 100vh;
}

.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.tab-btn {
    padding: 16px 24px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--text-primary);
    border-bottom-color: var(--text-primary);
    background: var(--bg-tertiary);
}

.tab-content {
    display: none;
    flex: 1;
    overflow: auto;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
}

.content-header h2 {
    font-size: 20px;
    font-weight: 600;
}

.table-actions {
    display: flex;
    gap: 8px;
}

.table-container {
    flex: 1;
    overflow: auto;
    padding: 14px 16px;
    background: var(--bg-primary);
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0;
    overflow: hidden;
    box-shadow: none;
}

.data-table th,
.data-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    vertical-align: middle;
}

.data-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 1;
}

.data-table th:last-child,
.data-table td:last-child {
    border-right: none;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background: var(--bg-tertiary);
}

.row-actions {
    display: inline-flex;
    flex-direction: row;
    gap: 6px;
    height: 100%;
    align-items: center;
}

.row-actions button {
    padding: 6px 8px;
    font-size: 12px;
    min-height: 30px;
    width: auto;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 14px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.query-editor {
    display: flex;
    flex-direction: column;
    padding: 14px 16px 16px 16px;
    gap: 14px;
    flex: 1;
    overflow: auto;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.editor-wrapper {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-secondary);
    box-shadow: 0 4px 12px var(--shadow);
    overflow: hidden;
    height: 260px;
}

.highlight-layer {
    position: absolute;
    inset: 0;
    padding: 0;
    pointer-events: none;
    font-family: 'JetBrains Mono', 'SFMono-Regular', monospace;
    line-height: 1.5;
    color: transparent;
    overflow: hidden;
    white-space: pre-wrap;
    word-break: break-word;
    z-index: 1;
}

#query-highlight {
    position: absolute;
    inset: 0;
    margin: 0;
    padding: 12px 14px;
    font-size: 13px;
    line-height: 1.5;
    overflow: auto;
}

.highlighted-query {
    color: var(--text-primary);
}

#query-input {
    position: absolute;
    inset: 0;
    z-index: 2;
    width: 100%;
    height: 100%;
    min-height: 0;
    background: transparent;
    border: none;
    padding: 12px 14px;
    font-size: 13px;
    line-height: 1.5;
    font-family: 'JetBrains Mono', 'SFMono-Regular', monospace;
    resize: none;
    color: transparent;
    caret-color: var(--accent);
    white-space: pre-wrap;
    word-break: break-word;
    overflow: auto;
}

#query-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.query-results {
    flex: 1;
    overflow: auto;
}

.query-results h3 {
    margin-bottom: 12px;
}

#query-output {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 16px;
    min-height: 200px;
    box-shadow: none;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 16px 44px var(--shadow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 18px;
}

.modal-close {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 20px;
    color: var(--text-primary);
    padding: 4px;
}

.modal-body {
    flex: 1;
    overflow: auto;
    padding: 20px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

.columns-builder {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    background: var(--bg-tertiary);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.columns-builder-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--text-secondary);
}

.columns-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.column-row {
    display: grid;
    grid-template-columns: 1fr 0.8fr 0.7fr 0.7fr auto;
    gap: 8px;
    align-items: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
}

.column-row input,
.column-row select {
    margin: 0;
}

.column-row .btn-icon {
    border-radius: 8px;
}

/* Search */
.search-section {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color);
}

#table-search {
    width: 100%;
    padding: 8px 12px;
    padding-left: 32px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23666'%3E%3Cpath d='M15.5 14h-.79l-.28-.27a6.5 6.5 0 0 0 1.48-5.34c-.47-2.78-2.79-5-5.59-5.34a6.505 6.505 0 0 0-7.27 7.27c.34 2.8 2.56 5.12 5.34 5.59a6.5 6.5 0 0 0 5.34-1.48l.27.28v.79l4.25 4.25c.41.41 1.08.41 1.49 0 .41-.41.41-1.08 0-1.49L15.5 14zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 8px center;
    background-size: 16px;
}

@media (prefers-color-scheme: dark) {
    #table-search {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23b0b0b0'%3E%3Cpath d='M15.5 14h-.79l-.28-.27a6.5 6.5 0 0 0 1.48-5.34c-.47-2.78-2.79-5-5.59-5.34a6.505 6.505 0 0 0-7.27 7.27c.34 2.8 2.56 5.12 5.34 5.59a6.5 6.5 0 0 0 5.34-1.48l.27.28v.79l4.25 4.25c.41.41 1.08.41 1.49 0 .41-.41.41-1.08 0-1.49L15.5 14zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E");
    }
}

.badge {
    background: var(--accent);
    color: var(--bg-primary);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    margin-left: 8px;
}

.table-stats {
    padding: 10px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 20px;
    font-size: 13px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-item i {
    color: var(--text-secondary);
}

/* Query Editor */
.editor-actions {
    display: flex;
    gap: 8px;
}

.query-examples {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: var(--bg-secondary);
    border: 1px dashed var(--border-color);
    border-radius: 10px;
    flex-wrap: wrap;
}

.examples-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.example-btn {
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s;
}

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

.query-tabs {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: -6px;
}

.query-tabs-list {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.query-tab {
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 0;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.query-tab.active {
    background: var(--text-primary);
    color: var(--bg-secondary);
}

.query-tab .close-tab {
    background: transparent;
    border: none;
    cursor: pointer;
    color: inherit;
    font-size: 12px;
    line-height: 1;
}

.autocomplete-popup {
    display: none;
    position: absolute;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    max-height: 220px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 12px 30px var(--shadow);
    min-width: 220px;
    padding: 6px 0;
}

.autocomplete-popup.active {
    display: block;
}

.autocomplete-item {
    padding: 10px 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.autocomplete-item:hover,
.autocomplete-item.selected {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.autocomplete-item.exists span {
    text-decoration: underline;
}

.autocomplete-item i {
    color: var(--text-secondary);
    font-size: 11px;
}

.autocomplete-type {
    font-size: 11px;
    color: var(--text-secondary);
    margin-left: auto;
}

.query-history {
    margin-top: 20px;
}

.query-history h4 {
    font-size: 14px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.history-item {
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    font-family: 'JetBrains Mono', 'SFMono-Regular', monospace;
    font-size: 12px;
    transition: all 0.2s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.query-stats {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    gap: 16px;
}

/* Syntax highlighting in textarea */
.sql-keyword {
    color: #1d4ed8;
    font-weight: 700;
}

.sql-table-known {
    color: #db2777;
    font-weight: 600;
}

.sql-column-known {
    color: #2563eb;
}

.sql-ident {
    color: var(--text-primary);
}

.sql-string {
    color: #d97706;
}

.sql-number {
    color: #059669;
}

.sql-comment {
    color: #6b7280;
    font-style: italic;
}

@media (prefers-color-scheme: dark) {
    .sql-keyword {
        color: #a5b8ff;
    }
    .sql-table-known {
        color: #f9a8d4;
    }
    
    .sql-column-known {
        color: #93c5fd;
    }
    
    .sql-string {
        color: #fcd34d;
    }
    
    .sql-number {
        color: #34d399;
    }
}

/* Column constraints badges */
.column-constraint {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 600;
    margin-left: 4px;
    text-transform: uppercase;
}

.constraint-pk {
    background: rgba(0, 0, 0, 0.08);
    color: var(--text-primary);
}

.constraint-fk {
    background: rgba(0, 0, 0, 0.08);
    color: var(--text-primary);
}

.constraint-unique {
    background: rgba(0, 0, 0, 0.08);
    color: var(--text-primary);
}

/* Loading states */
.loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.loading i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
}

/* Success/Error messages */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 16px;
    box-shadow: 0 4px 12px var(--shadow);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 2000;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success {
    border-left: 3px solid var(--text-primary);
}

.toast.error {
    border-left: 3px solid #4a4a4a;
}

.toast.info {
    border-left: 3px solid #6b6b6b;
}

/* ...existing code... */