:root {
    --primary-color: #a74e9e;
    --secondary-color: #933c85;
    --bg-color: #0a0a0f;
    --panel-bg: rgba(22, 22, 27, 0.95);
    --panel-bg-solid: #16161b;
    --border-color: rgba(255, 255, 255, 0.08);
    --text-color: #e6e6e6;
    --text-muted: rgba(255, 255, 255, 0.5);
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --sidebar-width: 280px;
}

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

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

/* --- Top Bar --- */

.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    height: 44px;
    background: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.top-bar-logo svg {
    width: 32px;
    height: 32px;
}

.top-bar-title {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.5px;
}

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

.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 13px;
}

.org-name {
    color: rgba(255, 255, 255, 0.35);
    font-size: 12px;
    padding-right: 8px;
    border-right: 1px solid var(--border-color);
    margin-right: 4px;
}

.org-name:empty { display: none; }

.user-role {
    background: rgba(167, 78, 158, 0.15);
    color: var(--primary-color);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.btn-change-pw {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-family: inherit;
    transition: all 0.2s;
}

.btn-change-pw:hover {
    color: var(--text-color);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-logout {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-family: inherit;
    transition: all 0.2s;
}

.btn-logout:hover {
    color: var(--text-color);
    border-color: rgba(255, 255, 255, 0.2);
}

/* --- Layout --- */

.app-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* --- Sidebar --- */

.sidebar {
    width: var(--sidebar-width);
    background: var(--panel-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
}

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

.sidebar-header h2 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
    font-weight: 500;
}

.device-count {
    font-size: 12px;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 8px;
    border-radius: 10px;
}

.device-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.device-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
    margin-bottom: 4px;
}

.device-item:hover {
    background: rgba(255, 255, 255, 0.04);
}

.device-item.active {
    background: rgba(167, 78, 158, 0.1);
    border: 1px solid rgba(167, 78, 158, 0.2);
}

.device-status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.15);
}

.device-status-dot.online {
    background: var(--success-color);
    box-shadow: 0 0 6px rgba(34, 197, 94, 0.4);
}

.device-status-dot.offline {
    background: rgba(255, 255, 255, 0.15);
}

.device-remove-btn {
    display: none;
    width: 24px;
    height: 24px;
    border: none;
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    line-height: 1;
    flex-shrink: 0;
    transition: background 0.2s;
}

.device-item:hover .device-remove-btn {
    display: flex;
    align-items: center;
    justify-content: center;
}

.device-remove-btn:hover {
    background: rgba(239, 68, 68, 0.25);
}

.device-transfer-btn {
    display: none;
    width: 24px;
    height: 24px;
    border: none;
    background: rgba(167, 78, 158, 0.1);
    color: var(--primary-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    line-height: 1;
    flex-shrink: 0;
    transition: background 0.2s;
}

.device-item:hover .device-transfer-btn {
    display: flex;
    align-items: center;
    justify-content: center;
}

.device-transfer-btn:hover {
    background: rgba(167, 78, 158, 0.25);
}

.device-item-info {
    flex: 1;
    min-width: 0;
}

.device-item-name {
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.device-item-location {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.35);
    margin-top: 1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.device-item-status {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.device-edit-btn {
    display: none;
    width: 24px;
    height: 24px;
    border: none;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    line-height: 1;
    flex-shrink: 0;
    transition: background 0.2s;
}

.device-item:hover .device-edit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
}

.device-edit-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    min-height: 80px;
    transition: border-color 0.2s;
}

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

.sidebar-admin {
    padding: 12px;
    border-top: 1px solid var(--border-color);
}

.btn-admin {
    width: 100%;
    padding: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    font-family: inherit;
    transition: all 0.2s;
    margin-bottom: 6px;
}

.btn-admin:last-child {
    margin-bottom: 0;
}

.btn-admin:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-color);
}

/* --- Main Content --- */

.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

/* --- Empty State --- */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
    gap: 16px;
}

.empty-state svg {
    width: 64px;
    height: 64px;
    opacity: 0.3;
}

.empty-state h3 {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-color);
}

.empty-state p {
    font-size: 14px;
    max-width: 400px;
}

/* --- Device Viewer (iframe) --- */

.main-content.has-viewer {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 4px;
}

.device-viewer {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.device-viewer-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 12px;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px 6px 0 0;
    flex-shrink: 0;
}

.device-viewer-name {
    font-size: 13px;
    font-weight: 500;
    color: #fff;
}

.device-viewer-fullscreen-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
}

.device-viewer-fullscreen-btn svg {
    width: 16px;
    height: 16px;
}

.device-viewer-fullscreen-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-color);
}

.device-iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 6px 6px;
    background: var(--bg-color);
}

/* --- Fullscreen Mode --- */

.top-bar.hidden {
    display: none;
}

.app-layout.fullscreen {
    position: fixed;
    inset: 0;
    z-index: 10000;
}

.app-layout.fullscreen .sidebar {
    display: none;
}

.app-layout.fullscreen .main-content {
    padding: 0;
}

.app-layout.fullscreen .main-content.has-viewer {
    padding: 0;
}

.app-layout.fullscreen .device-viewer-toolbar {
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-top: none;
}

.app-layout.fullscreen .device-iframe {
    border: none;
    border-radius: 0;
}

/* --- Device Panel --- */

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

.device-panel-title {
    font-size: 22px;
    font-weight: 600;
    color: #fff;
}

.device-panel-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.online {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.status-badge.offline {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

/* --- Status Cards --- */

.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.status-card {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
}

.status-card-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.status-card-value {
    font-size: 24px;
    font-weight: 600;
    color: #fff;
}

.status-card-value.temp {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.status-card-target {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* --- Sections --- */

.panel-section {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 24px;
    overflow: hidden;
}

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

.panel-section-header h3 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
}

.panel-section-body {
    padding: 20px;
}

/* --- Camera Grid --- */

.camera-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 16px;
}

.camera-cell {
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    position: relative;
}

.camera-cell video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.camera-label {
    position: absolute;
    top: 8px;
    left: 8px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 12px;
    padding: 3px 8px;
    border-radius: 4px;
}

.camera-status {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-muted);
    font-size: 13px;
    text-align: center;
}

/* --- G-code Terminal --- */

.gcode-terminal {
    background: #0d0d12;
    border-radius: 8px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 13px;
    overflow: hidden;
}

.gcode-output {
    padding: 12px 16px;
    max-height: 200px;
    overflow-y: auto;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.7);
}

.gcode-output .response {
    color: var(--success-color);
}

.gcode-output .error {
    color: var(--danger-color);
}

.gcode-input-row {
    display: flex;
    border-top: 1px solid var(--border-color);
}

.gcode-input-row input {
    flex: 1;
    background: none;
    border: none;
    color: #fff;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 13px;
    outline: none;
}

.gcode-input-row input::placeholder {
    color: rgba(255, 255, 255, 0.25);
}

.gcode-input-row button {
    padding: 12px 20px;
    background: var(--primary-color);
    border: none;
    color: #fff;
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
    font-weight: 500;
    transition: opacity 0.2s;
}

.gcode-input-row button:hover {
    opacity: 0.85;
}

/* --- Modal --- */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal {
    background: var(--panel-bg-solid);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 28px;
    width: 480px;
    max-width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
}

.modal h2 {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 16px;
}

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

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

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

.form-group select option {
    background: var(--panel-bg-solid);
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 24px;
}

.btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

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

.btn-primary:hover {
    opacity: 0.85;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.25);
}

/* --- Token Display --- */

.token-display {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 12px;
    word-break: break-all;
    color: var(--warning-color);
    margin: 12px 0;
}

/* --- Scrollbar --- */

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* --- Modal Form Row (used by mobile.css for stacking) --- */

.modal-form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* --- Loading Overlay --- */

.loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    transition: opacity 0.4s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(255, 255, 255, 0.08);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-text {
    font-size: 14px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

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

/* --- Device Viewer Loading --- */

.device-viewer-loading {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background: var(--bg-color);
    z-index: 1;
    transition: opacity 0.3s ease;
}

.device-viewer-loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.device-viewer-body {
    position: relative;
    flex: 1;
    min-height: 0;
}