/* ===== CSS Variables ===== */
:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-card: #1c2128;
    --border: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --success: #3fb950;
    --danger: #f85149;
    --warning: #d29922;
    --info: #58a6ff;

    --sidebar-width: 280px;
    --header-height: 56px;
    --log-panel-width: 520px;
    --card-radius: 8px;
    --transition: 0.2s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border);
}

/* ===== Header ===== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 100;
}

#header h1 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.refresh-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.refresh-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s infinite;
}

.refresh-indicator.paused .refresh-dot {
    background: var(--warning);
    animation: none;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.last-updated {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ===== Sidebar ===== */
#sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    z-index: 50;
    padding: 12px 0;
}

.sidebar-section {
    padding: 4px 0;
}

.sidebar-section + .sidebar-section {
    border-top: 1px solid var(--border);
    margin-top: 4px;
    padding-top: 8px;
}

.sidebar-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 16px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

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

.sidebar-item.active {
    background: rgba(88, 166, 255, 0.1);
    color: var(--accent);
    border-right: 2px solid var(--accent);
}

.sidebar-icon {
    font-size: 14px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

/* Node items */
.node-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 16px 7px 20px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition);
}

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

.node-item.active {
    background: rgba(88, 166, 255, 0.1);
    color: var(--accent);
}

.health-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.health-dot.healthy {
    background: var(--success);
    box-shadow: 0 0 4px rgba(63, 185, 80, 0.4);
}

.health-dot.unhealthy {
    background: var(--danger);
    box-shadow: 0 0 4px rgba(248, 81, 73, 0.4);
}

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

.node-count {
    font-size: 11px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 1px 6px;
    border-radius: 10px;
}

/* Group items */
.group-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 16px 7px 20px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition);
}

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

.group-item.active {
    background: rgba(88, 166, 255, 0.1);
    color: var(--accent);
}

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

.group-item .group-actions {
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity var(--transition);
}

.group-item:hover .group-actions {
    opacity: 1;
}

.group-action-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 3px;
    transition: color var(--transition), background var(--transition);
    line-height: 1;
}

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

.group-action-btn.delete:hover {
    color: var(--danger);
}

.group-svc-count {
    font-size: 11px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 1px 6px;
    border-radius: 10px;
    flex-shrink: 0;
}

/* ===== Main Content ===== */
#main {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 20px 24px;
    min-height: calc(100vh - var(--header-height));
}

/* ===== Toolbar ===== */
.toolbar {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.toolbar-left {
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-shrink: 0;
}

.toolbar-left h2 {
    font-size: 20px;
    font-weight: 600;
}

.service-count {
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 10px;
}

.toolbar-center {
    display: flex;
    gap: 8px;
}

.toolbar-right {
    margin-left: auto;
}

.search-input {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 13px;
    color: var(--text-primary);
    width: 240px;
    transition: border-color var(--transition);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

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

/* ===== Service Grid ===== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 14px;
}

/* ===== Service Card ===== */
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--card-radius);
    padding: 16px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.service-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px rgba(88, 166, 255, 0.15);
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 10px;
}

.card-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-all;
    line-height: 1.3;
}

.card-swarm-badge {
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 3px;
    background: rgba(88, 166, 255, 0.15);
    color: var(--accent);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    flex-shrink: 0;
    margin-left: 8px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
}

.status-running .status-dot {
    background: var(--success);
    box-shadow: 0 0 4px rgba(63, 185, 80, 0.5);
}

.status-running {
    color: var(--success);
}

.status-exited .status-dot,
.status-stopped .status-dot,
.status-dead .status-dot {
    background: var(--danger);
}

.status-exited,
.status-stopped,
.status-dead {
    color: var(--danger);
}

.status-restarting .status-dot {
    background: var(--warning);
    animation: pulse 1s infinite;
}

.status-restarting {
    color: var(--warning);
}

.status-created .status-dot,
.status-paused .status-dot {
    background: var(--text-secondary);
}

.status-created,
.status-paused {
    color: var(--text-secondary);
}

.card-meta {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin: 10px 0;
}

.card-meta-row {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.card-meta-label {
    flex-shrink: 0;
    min-width: 40px;
}

.card-meta-value {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-actions {
    display: flex;
    gap: 6px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    line-height: 1.4;
}

.btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.btn-primary:hover:not(:disabled) {
    background: #4393e6;
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--border);
}

.btn-success {
    background: rgba(63, 185, 80, 0.15);
    color: var(--success);
    border-color: rgba(63, 185, 80, 0.3);
}

.btn-success:hover:not(:disabled) {
    background: rgba(63, 185, 80, 0.25);
}

.btn-danger {
    background: rgba(248, 81, 73, 0.15);
    color: var(--danger);
    border-color: rgba(248, 81, 73, 0.3);
}

.btn-danger:hover:not(:disabled) {
    background: rgba(248, 81, 73, 0.25);
}

.btn-warning {
    background: rgba(210, 153, 34, 0.15);
    color: var(--warning);
    border-color: rgba(210, 153, 34, 0.3);
}

.btn-warning:hover:not(:disabled) {
    background: rgba(210, 153, 34, 0.25);
}

.btn-info {
    background: rgba(88, 166, 255, 0.15);
    color: var(--info);
    border-color: rgba(88, 166, 255, 0.3);
}

.btn-info:hover:not(:disabled) {
    background: rgba(88, 166, 255, 0.25);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    padding: 4px 6px;
    border-radius: 4px;
    transition: all var(--transition);
    line-height: 1;
}

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

/* Card action buttons */
.card-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 28px;
    font-size: 14px;
    border: 1px solid var(--border);
    border-radius: 5px;
    cursor: pointer;
    transition: all var(--transition);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    position: relative;
}

.card-action-btn:hover:not(:disabled) {
    color: var(--text-primary);
}

.card-action-btn:disabled {
    opacity: 0.25;
    cursor: not-allowed;
}

.card-action-btn.action-start:hover:not(:disabled) {
    border-color: var(--success);
    color: var(--success);
    background: rgba(63, 185, 80, 0.1);
}

.card-action-btn.action-stop:hover:not(:disabled) {
    border-color: var(--danger);
    color: var(--danger);
    background: rgba(248, 81, 73, 0.1);
}

.card-action-btn.action-restart:hover:not(:disabled) {
    border-color: var(--warning);
    color: var(--warning);
    background: rgba(210, 153, 34, 0.1);
}

.card-action-btn.action-pull:hover:not(:disabled) {
    border-color: var(--info);
    color: var(--info);
    background: rgba(88, 166, 255, 0.1);
}

.card-action-btn.action-logs:hover:not(:disabled) {
    border-color: var(--text-secondary);
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Tooltip on action buttons */
.card-action-btn[title]::after {
    content: attr(title);
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s;
    border: 1px solid var(--border);
    z-index: 10;
}

.card-action-btn[title]:hover::after {
    opacity: 1;
}

/* Spinning indicator for loading */
.card-action-btn.loading {
    pointer-events: none;
}

.card-action-btn.loading::before {
    content: "";
    position: absolute;
    inset: 4px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.card-action-btn.loading > span {
    visibility: hidden;
}

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

/* ===== Log Panel ===== */
.log-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 200;
}

.log-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: var(--log-panel-width);
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    z-index: 210;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.log-panel.open {
    transform: translateX(0);
}

.log-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.log-header h3 {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.log-close {
    font-size: 16px;
}

.log-content {
    flex: 1;
    overflow: auto;
    padding: 14px 18px;
    font-family: "SF Mono", "Cascadia Code", "Fira Code", "Consolas", monospace;
    font-size: 12px;
    line-height: 1.6;
    color: #c9d1d9;
    background: #010409;
    white-space: pre-wrap;
    word-break: break-all;
    margin: 0;
}

/* ===== Modals ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.15s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 560px;
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
    animation: slideUp 0.2s ease;
}

.modal-sm {
    width: 400px;
}

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

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 16px;
    font-weight: 600;
}

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

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 14px 20px;
    border-top: 1px solid var(--border);
}

/* ===== Form ===== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--text-primary);
    transition: border-color var(--transition);
}

.form-input::placeholder {
    color: var(--text-secondary);
}

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

/* Group service list in modal */
.group-service-list {
    max-height: 340px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-top: 8px;
    background: var(--bg-primary);
}

.group-service-node-heading {
    padding: 8px 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1;
}

.group-service-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition);
}

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

.group-service-item input[type="checkbox"] {
    accent-color: var(--accent);
    width: 15px;
    height: 15px;
    cursor: pointer;
}

.group-service-item.hidden {
    display: none;
}

/* ===== Toasts ===== */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 400;
    display: flex;
    flex-direction: column-reverse;
    gap: 8px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 13px;
    min-width: 280px;
    max-width: 420px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    animation: toastIn 0.3s ease;
    border: 1px solid;
}

.toast.toast-success {
    background: rgba(63, 185, 80, 0.12);
    color: var(--success);
    border-color: rgba(63, 185, 80, 0.25);
}

.toast.toast-error {
    background: rgba(248, 81, 73, 0.12);
    color: var(--danger);
    border-color: rgba(248, 81, 73, 0.25);
}

.toast.toast-info {
    background: rgba(88, 166, 255, 0.12);
    color: var(--info);
    border-color: rgba(88, 166, 255, 0.25);
}

.toast.toast-warning {
    background: rgba(210, 153, 34, 0.12);
    color: var(--warning);
    border-color: rgba(210, 153, 34, 0.25);
}

.toast.removing {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes toastOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

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

.empty-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 12px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 15px;
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .service-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 900px) {
    #sidebar {
        width: 220px;
    }
    #main {
        margin-left: 220px;
    }
    .log-panel {
        width: 100%;
    }
}

@media (max-width: 640px) {
    #sidebar {
        display: none;
    }
    #main {
        margin-left: 0;
    }
    .service-grid {
        grid-template-columns: 1fr;
    }
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    .toolbar-right {
        margin-left: 0;
    }
    .search-input {
        width: 100%;
    }
}