/* BendCAD CSS - Autodesk Fusion 360 style */

:root {
    --primary-color: #f59b2f;
    --primary-hover: #ffb45c;
    --fusion-blue: #22a7f0;
    --fusion-blue-hover: #55c3ff;
    --dark-bg: #252c35;
    --darker-bg: #1e252e;
    --panel-bg: #303946;
    --control-bg: #3b4655;
    --border-color: #4b5665;
    --accent-border: #5d6a7a;
    --text-primary: #f4f7fb;
    --text-secondary: #d2dae5;
    --text-muted: #9aa7b5;
    
    --titlebar-height: 48px;
    --ribbon-height: 84px;
    --sidebar-width: 240px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* ── TITLEBAR ── */
.cad-titlebar {
    height: var(--titlebar-height);
    background: var(--darker-bg);
    border-bottom: 1px solid #151a21;
    display: flex;
    palign-items: center;
    justify-content: space-between;
    padding: 0 12px;
    z-index: 1000;
    user-select: none;
}

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

.data-panel-toggle {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background 0.15s, color 0.15s;
}

.data-panel-toggle:hover {
    background: var(--control-bg);
    color: #fff;
}

.cad-logo-wrapper {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    font-size: 15px;
    color: #fff;
    cursor: default;
}

.cad-logo-bar {
    width: 6px;
    height: 20px;
    border-radius: 1px;
    background: linear-gradient(180deg, #ffb45c, #f59b2f);
    box-shadow: 8px 0 0 var(--fusion-blue);
    margin-right: 12px;
}

/* Workspace Selector */
.workspace-selector {
    position: relative;
}

.workspace-btn {
    background: #3b4655;
    border: 1px solid var(--accent-border);
    border-radius: 3px;
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 5px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    height: 28px;
    transition: background 0.15s;
}

.workspace-btn:hover {
    background: #465365;
}

.workspace-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    width: 220px;
    display: none;
    flex-direction: column;
    padding: 4px;
    z-index: 1001;
}

.workspace-dropdown.active {
    display: flex;
}

.workspace-item {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 12px;
    font-size: 12.5px;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    border-radius: 3px;
    transition: background 0.1s, color 0.1s;
}

.workspace-item:hover {
    background: var(--control-bg);
    color: #fff;
}

.workspace-item.active {
    background: var(--primary-color);
    color: #111;
    font-weight: 600;
}

/* Document Tabs */
.cad-tabs-container {
    display: flex;
    align-items: flex-end;
    margin-left: 20px;
    height: 100%;
    overflow-x: auto;
    scrollbar-width: none;
}
.cad-tabs-container::-webkit-scrollbar { display: none; }

.cad-tab {
    height: 32px;
    background: #202730;
    border: 1px solid #2e3745;
    border-bottom: none;
    border-radius: 4px 4px 0 0;
    padding: 0 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    margin-right: 2px;
    max-width: 160px;
    white-space: nowrap;
    position: relative;
    transition: background 0.15s, color 0.15s;
}

.cad-tab:hover {
    background: #2a3442;
    color: #fff;
}

.cad-tab.active {
    background: var(--panel-bg);
    color: #fff;
    border-color: var(--border-color);
    border-bottom: 2px solid var(--panel-bg);
    font-weight: 600;
    box-shadow: 0 -2px 0 var(--primary-color) inset;
}

.cad-tab-close {
    font-size: 10px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.5;
    transition: opacity 0.15s, background 0.15s;
}

.cad-tab-close:hover {
    opacity: 1;
    background: rgba(255,255,255,0.15);
}

.titlebar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Global settings toggles */
.global-setting-group {
    display: flex;
    align-items: center;
    background: #181e25;
    border: 1px solid #333;
    border-radius: 4px;
    padding: 2px;
}

.global-setting-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 700;
    padding: 4px 8px;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.15s;
}

.global-setting-btn.active {
    background: var(--primary-color);
    color: #111;
}

/* ── RIBBON TOOLBAR ── */
.cad-ribbon {
    height: var(--ribbon-height);
    background: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: stretch;
    padding: 4px 12px;
    gap: 14px;
    overflow-x: auto;
    user-select: none;
    z-index: 999;
}

.ribbon-group {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-right: 1px solid rgba(255,255,255,0.06);
    padding-right: 14px;
    margin-right: 2px;
    min-width: 0;
}

.ribbon-group:last-child {
    border-right: none;
    padding-right: 0;
}

.ribbon-buttons {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
}

.ribbon-btn {
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 68px;
    height: 56px;
    cursor: pointer;
    font-size: 10px;
    font-weight: 500;
    gap: 4px;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.ribbon-btn:hover:not(:disabled) {
    background: var(--control-bg);
    border-color: var(--accent-border);
    color: #fff;
}

.ribbon-btn:active:not(:disabled) {
    background: #2e3745;
}

.ribbon-btn:disabled {
    opacity: 0.35;
    cursor: default;
}

.ribbon-btn.active {
    background: rgba(245, 155, 47, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.ribbon-btn i {
    font-size: 18px;
    color: #fff;
    transition: color 0.15s;
}

.ribbon-btn:hover i {
    color: var(--primary-hover);
}

.ribbon-btn.active i {
    color: var(--primary-color);
}

.ribbon-btn-danger:hover:not(:disabled) {
    background: rgba(217, 92, 63, 0.15);
    border-color: var(--btn-danger);
    color: #fff;
}

.ribbon-btn-danger:hover i {
    color: var(--btn-danger-hover);
}

.ribbon-group-label {
    font-size: 9px;
    text-transform: uppercase;
    color: var(--text-muted);
    text-align: center;
    letter-spacing: 0.05em;
    margin-top: 2px;
}

/* ── DATA PANEL (Left sliding drawer) ── */
.cad-data-panel {
    position: fixed;
    top: var(--titlebar-height);
    left: calc(-1 * var(--sidebar-width));
    width: var(--sidebar-width);
    height: calc(100vh - var(--titlebar-height));
    background: var(--darker-bg);
    border-right: 1px solid #1a222a;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1010;
    display: flex;
    flex-direction: column;
    padding: 16px 12px;
}

.cad-data-panel.active {
    left: 0;
}

.data-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.data-panel-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
}

.data-panel-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 14px;
    cursor: pointer;
}

.data-panel-close:hover {
    color: #fff;
}

.data-project-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
    flex: 1;
}

.data-project-item {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px 12px;
    cursor: pointer;
    transition: all 0.15s;
}

.data-project-item:hover {
    border-color: var(--primary-color);
    background: var(--control-bg);
    transform: translateY(-1px);
}

.data-project-title {
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 2px;
}

.data-project-desc {
    font-size: 10.5px;
    color: var(--text-muted);
    line-height: 1.3;
}

/* ── SHELL CONTAINER ── */
.cad-workspace-container {
    display: flex;
    flex: 1;
    min-height: 0;
    position: relative;
}

/* ── BROWSER TREE (Left Sidebar) ── */
.cad-browser {
    width: var(--sidebar-width);
    background: var(--dark-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    user-select: none;
    z-index: 10;
}

.browser-header {
    background: #1e252e;
    padding: 8px 12px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
}

.browser-tree {
    padding: 8px;
}

.tree-node {
    display: flex;
    flex-direction: column;
    margin-bottom: 2px;
}

.tree-row {
    display: flex;
    align-items: center;
    padding: 5px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    gap: 8px;
    color: var(--text-secondary);
    transition: background 0.1s, color 0.1s;
}

.tree-row:hover {
    background: var(--control-bg);
    color: #fff;
}

.tree-row.active {
    background: var(--control-bg);
    border: 1px solid var(--accent-border);
    color: #fff;
}

.tree-row i.fa-folder,
.tree-row i.fa-folder-open {
    color: #f59b2f;
}

.tree-row i.fa-eye,
.tree-row i.fa-eye-slash {
    margin-left: auto;
    opacity: 0.5;
    transition: opacity 0.15s;
}

.tree-row i.fa-eye:hover,
.tree-row i.fa-eye-slash:hover {
    opacity: 1;
}

.tree-children {
    padding-left: 18px;
    margin-top: 2px;
    display: flex;
    flex-direction: column;
}

.tree-children.collapsed {
    display: none;
}

.tree-arrow {
    font-size: 9px;
    width: 10px;
    transition: transform 0.15s;
}

.tree-arrow.collapsed {
    transform: rotate(-90deg);
}

/* ── VIEWPORT (Center CAD Canvas) ── */
.cad-viewport-area {
    flex: 1;
    position: relative;
    background: #111;
    overflow: hidden;
}

.workspace-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
}

.workspace-iframe.hidden {
    display: none;
}

/* Overlay backdrops inside main screen */
.data-panel-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 1005;
    display: none;
}

.data-panel-backdrop.active {
    display: block;
}

/* ── FASTENERS BUILT-IN LOOKUP TAB ── */
.workspace-panel {
    position: absolute;
    inset: 0;
    padding: 24px;
    overflow-y: auto;
    background: var(--dark-bg);
}

.workspace-panel.hidden {
    display: none;
}

.fasteners-header {
    margin-bottom: 20px;
}

.fasteners-header h2 {
    margin: 0 0 6px 0;
    font-size: 20px;
    color: #fff;
}

.fasteners-header p {
    margin: 0;
    font-size: 13px;
    color: var(--text-muted);
}

.fasteners-controls {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.fasteners-search-wrapper {
    flex: 1;
    min-width: 260px;
    position: relative;
}

.fasteners-search-wrapper i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.fasteners-search {
    width: 100%;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 8px 12px 8px 36px;
    color: #fff;
    font-size: 13px;
    outline: none;
    height: 36px;
    transition: border-color 0.15s;
}

.fasteners-search:focus {
    border-color: var(--primary-color);
}

.fasteners-filter-select {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: #fff;
    padding: 0 12px;
    font-size: 13px;
    outline: none;
    height: 36px;
    min-width: 150px;
    cursor: pointer;
}

.fasteners-table-container {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.fasteners-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

.fasteners-table th {
    background: var(--darker-bg);
    padding: 12px 16px;
    font-weight: 600;
    color: #fff;
    border-bottom: 2px solid var(--border-color);
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.05em;
}

.fasteners-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

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

.fasteners-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
    color: #fff;
}

.fastener-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
}

.fastener-badge.imperial {
    background: rgba(34, 167, 240, 0.15);
    color: var(--fusion-blue);
    border: 1px solid rgba(34, 167, 240, 0.3);
}

.fastener-badge.metric {
    background: rgba(245, 155, 47, 0.15);
    color: var(--primary-color);
    border: 1px solid rgba(245, 155, 47, 0.3);
}

/* ── LOADING OVERLAY ── */
.shell-loader {
    position: fixed;
    inset: 0;
    background: var(--darker-bg);
    z-index: 20000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
}

.shell-loader-content {
    text-align: center;
}

.shell-loader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(245, 155, 47, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

.shell-loader-text {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 4px;
}

.shell-loader-subtext {
    font-size: 12px;
    color: var(--text-muted);
}

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