:root {
    --bg-main: #0f111a;
    --bg-panel: #1e1e2f;
    --bg-header: #1a1a27;
    --bg-hover: #2a2a3f;
    --bg-input: #0f111a;
    --border-color: #2b2b40;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --accent: #00ed64;
    --accent-hover: #00c853;
    --accent-glow: rgba(0, 237, 100, 0.2);
    --danger: #ef4444;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* Login Screen Styles */
.login-screen {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--bg-main);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-box {
    background-color: var(--bg-panel);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    border: 1px solid var(--border-color);
    width: 400px;
}

header {
    background-color: var(--bg-header);
    padding: 15px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    z-index: 10;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 0.5px;
}

.logo i {
    color: var(--accent);
}

.logout-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 8px 16px;
    cursor: pointer;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logout-btn:hover {
    color: var(--text-main);
    border-color: var(--text-muted);
    background: var(--bg-hover);
}

.container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.sidebar {
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

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

.servers-panel { width: 260px; }
.dbs-panel { width: 240px; }
.collections-panel { width: 240px; }

.main-content {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
    background-color: var(--bg-main);
}

.panel-header {
    padding: 16px 20px;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-header);
    position: sticky;
    top: 0;
    z-index: 5;
}

.btn {
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.primary-btn {
    background-color: var(--accent);
    color: #000;
    box-shadow: 0 4px 12px var(--accent-glow);
}

.primary-btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.cancel-btn {
    background-color: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

.cancel-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-main);
}

#add-server-btn, #add-db-btn {
    width: calc(100% - 32px);
    margin: 16px;
}

.list {
    list-style: none;
    flex: 1;
}

.list li {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.list li strong {
    color: var(--text-main);
    display: block;
    margin-bottom: 4px;
}

.list li small {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: monospace;
}

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

.list li.active {
    background-color: var(--accent-glow);
    border-left: 4px solid var(--accent);
    color: var(--accent);
}

.list li.active strong {
    color: var(--accent);
}

.list li.active small {
    color: var(--accent);
}

.status-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

#status-title {
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
}

.badges {
    display: flex;
    gap: 10px;
}

.badge {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-family: monospace;
    color: var(--accent);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.stat-box {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.stat-box-header {
    background-color: var(--bg-header);
    padding: 12px 16px;
    font-weight: 600;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
}

.stat-table {
    width: 100%;
    border-collapse: collapse;
}

.stat-table td {
    padding: 10px 16px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border-color);
}

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

.stat-table td:first-child {
    color: var(--text-muted);
    width: 40%;
    font-family: monospace;
}

.stat-table td:last-child {
    font-weight: 500;
    text-align: right;
}

.query-section {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.query-box {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.query-editor {
    flex: 2;
}

.index-info {
    flex: 1;
}

textarea {
    flex: 1;
    width: 100%;
    background-color: var(--bg-input);
    color: var(--text-main);
    border: none;
    padding: 16px;
    resize: none;
    min-height: 150px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.95rem;
    line-height: 1.5;
}

textarea:focus {
    outline: none;
}

#run-query-btn {
    border-radius: 0;
    padding: 12px;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.results-header h3 {
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.results-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--bg-panel);
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

#documents-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.document {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.document::before {
    content: '';
    position: absolute;
    top: 0; left: 0; bottom: 0; width: 4px;
    background-color: var(--accent);
}

.document pre {
    padding: 20px;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    color: #a6accd;
}

.welcome-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
    animation: fadeIn 0.5s ease;
}

.welcome-card i {
    color: var(--border-color);
    margin-bottom: 20px;
}

.welcome-card h2 {
    color: var(--text-main);
    margin-bottom: 10px;
    font-size: 1.8rem;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--bg-panel);
    width: 450px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    border: 1px solid var(--border-color);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.2s;
}

.close-btn:hover {
    color: var(--text-main);
}

.modal-body {
    padding: 24px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
}

.form-group input {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-main);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 30px;
}