/* ═══════════════════════════════════════════
   SkåpCAD — Dark Engineering Theme
   Inspired by Autodesk Fusion 360
   ═══════════════════════════════════════════ */

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

:root {
    /* Farben */
    --bg-app:        #09090b;
    --bg-panel:      #18181b;
    --bg-header:     #111113;
    --bg-elevated:   #1c1c20;
    --bg-hover:      #27272a;
    --bg-active:     #1e3a5f;
    --border-color:  #27272a;
    --text-primary:  #fafafa;
    --text-secondary:#a3a3a3;
    --text-muted:    #71717a;
    --accent:        #3b82f6;
    --accent-glow:   rgba(59, 130, 246, 0.25);
    --danger:        #ef4444;
    --success:       #10b981;

    /* Abmessungen */
    --header-height: 110px;
    --footer-height: 24px;
    --sidebar-width: 240px;
}

html, body {
    height: 100%;
    overflow: hidden;
    font-family: 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg-app);
    user-select: none;
    -webkit-font-smoothing: antialiased;
}

/* ── HEADER ── */
#app-header {
    display: flex;
    align-items: stretch;
    height: var(--header-height);
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    padding-left: 32px;
    gap: 0;
    z-index: 100;
}

.header-logo {
    display: flex;
    align-items: center;
    font-size: 18px;
    font-weight: 700;
    color: #f5c634;
    letter-spacing: 0.5px;
    white-space: nowrap;
    height: 100%;
    padding-right: 32px;
}

.header-separator {
    width: 1px;
    height: 100%;
    background: var(--border-color);
}

.header-content {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0;
    flex: 1;
}

.header-logo i {
    color: var(--accent);
    font-size: 22px;
}

/* ── Utility ── */
.hidden {
    display: none !important;
}

/* ── Menü-Tabs ── */
#menu-bar {
    display: flex;
    gap: 0;
    align-items: stretch;
    flex-shrink: 0;
}

.menu-tab {
    display: flex;
    align-items: center;
    background: transparent;
    border: none;
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    padding: 4px 16px;
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
    white-space: nowrap;
}

.menu-tab:last-child {
    border-right: 1px solid var(--border-color);
}

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

.menu-tab:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.menu-tab.active {
    color: var(--accent);
    background: transparent;
    border-bottom: none;
}

/* ── Spacer — füllt den restlichen Header-Bereich bis zum rechten Rand ── */
.menu-tab-spacer {
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

/* ── Subtoolbar ── */
.subtoolbar {
    display: flex;
    align-items: stretch;
    gap: 0;
    transition: opacity 0.15s, transform 0.15s;
    flex: 1;
}

.subtoolbar.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-4px);
}

.toolbar-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 140px;
    padding: 8px 16px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.12s, background 0.12s;
    white-space: nowrap;
    position: relative;
    height: 100%;
}

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

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

.toolbar-btn:active {
    color: var(--accent);
    background: var(--bg-active);
}

.toolbar-btn i {
    font-size: 20px;
}

.toolbar-btn span {
    font-size: 10px;
    letter-spacing: 0.3px;
}

/* ── MAIN (Viewport + Sidebar) ── */
#app-main {
    display: flex;
    height: calc(100vh - var(--header-height));
    overflow: hidden;
}

#left-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#canvas-container {
    flex: 1;
    position: relative;
    background: var(--bg-app);
    overflow: hidden;
}

#viewport-canvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: crosshair;
}

/* ── SIDEBAR ── */
#sidebar {
    width: auto;
    min-width: 160px;
    background: var(--bg-panel);
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

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

.sidebar-section h3 {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-section h3 i {
    font-size: 12px;
    color: var(--accent);
}

/* ── Projektbaum (Tree View) ── */
.tree-list,
.tree-children {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tree-children {
    padding-left: 18px;
    overflow: hidden;
}

.tree-node {
    /* leer — nur Container */
}

.tree-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    color: var(--text-secondary);
    transition: background 0.12s, color 0.12s;
    user-select: none;
}

.tree-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.tree-toggle.selected {
    background: var(--bg-active);
    color: var(--text-primary);
}

.tree-toggle .fa-caret-down,
.tree-toggle .fa-caret-right {
    font-size: 10px;
    width: 12px;
    text-align: center;
    color: var(--text-muted);
    transition: transform 0.15s;
}

.tree-toggle .tree-icon {
    font-size: 12px;
    width: 14px;
    text-align: center;
}

/* Root-Knoten-Icons einfärben */
#tree-root > .tree-node > .tree-toggle .tree-icon {
    color: var(--accent);
}


/* ── Empty State ── */
.empty-state {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--text-muted);
    line-height: 1.8;
    pointer-events: none;
    user-select: none;
}

.empty-state h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

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

/* ── FOOTER / STATUSLEISTE — feste Höhe, daneben Sidebar bis unten ── */
#app-footer {
    height: 24px;
    min-height: 24px;
    display: flex;
    align-items: center;
    background: var(--bg-header);
    border-top: 1px solid var(--border-color);
    padding: 0 16px;
    gap: 16px;
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.status-item i {
    font-size: 9px;
}

.status-item strong {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    min-width: 40px;
    color: var(--text-primary);
}

.status-divider {
    width: 1px;
    height: 12px;
    background: var(--border-color);
}

/* ── Scrollbar (webkit) ── */
#sidebar::-webkit-scrollbar {
    width: 6px;
}

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

#sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

#sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--bg-hover);
}

/* ── Dialog-Overlay ── */
.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.dialog {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    min-width: 360px;
    max-width: 480px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.dialog-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.dialog-label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* Confirm-Dialogs ohne Input-Feld brauchen mehr Abstand zu den Buttons */
.dialog-confirm .dialog-actions,
.dialog-grundriss .dialog-actions {
    margin-top: 20px;
}

.dialog-input {
    width: 100%;
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    padding: 10px 12px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s;
    margin-bottom: 20px;
}

/* Versteckt Hoch/Runter-Pfeile bei number-Input-Feldern */
.dialog-input::-webkit-inner-spin-button,
.dialog-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Firefox: Spin-Buttons ohne Layout-Change entfernen */
.dialog-input::-moz-inner-spin-button,
.dialog-input::-moz-outer-spin-button {
    -moz-appearance: none;
}

/* Winkel-Inputs: Pfeile ausblenden (WebKit) */
.grundriss-angle-input::-webkit-inner-spin-button,
.grundriss-angle-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Winkel-Inputs: Pfeile ausblenden (Firefox) */
.grundriss-angle-input::-moz-inner-spin-button,
.grundriss-angle-input::-moz-outer-spin-button {
    -moz-appearance: none;
}

/* Wandstärke-Inputs: Pfeile ausblenden (WebKit) */
.grundriss-thickness-input::-webkit-inner-spin-button,
.grundriss-thickness-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Wandstärke-Inputs: Pfeile ausblenden (Firefox) */
.grundriss-thickness-input::-moz-inner-spin-button,
.grundriss-thickness-input::-moz-outer-spin-button {
    -moz-appearance: none;
}

/* Berechnete Winkel: visuell als readonly/berechnet kennzeichnen */
.grundriss-angle-input:read-only {
    background: rgba(24, 24, 27, 0.5);
    border-color: var(--border-color);
    color: var(--text-muted);
    font-weight: 400;
    cursor: not-allowed;
}

/* Berechnete Winkel beim Fokus: trotzdem accent highlight für Delete-Hinweis */
.grundriss-angle-input:read-only:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
    color: var(--text-primary);
}

.dialog-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.dialog-btn {
    padding: 8px 20px;
    border: none;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.12s, color 0.12s;
}

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

.dialog-btn-cancel:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.dialog-btn-confirm {
    background: var(--accent);
    color: var(--text-primary);
}

.dialog-btn-confirm:hover:not(:disabled) {
    background: #2563eb;
}

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

/* Grundriss-Dialog */
.grundriss-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin: 10px 0;
}

/* Drag&Drop gesperrt wenn alle Winkel eingegeben wurden */
.grundriss-drag-locked {
    opacity: 0.6;
    cursor: not-allowed;
}

.grundriss-hint {
    font-size: 13px;
    color: var(--text-muted);
    margin: 8px 0 12px 0;
}

/* Grundriss-Panel — Wand + Winkel in einem Element */
.grundriss-panel {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: grab;
    user-select: none;
    transition: background 0.12s, border-color 0.12s;
}

.grundriss-panel:hover {
    background: var(--bg-hover);
    border-color: var(--accent);
}

.grundriss-panel.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.grundriss-panel-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    cursor: grab;
}

.grundriss-panel-header:hover {
    cursor: grab;
}

.grundriss-panel-handle {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1;
}

.grundriss-panel-label {
    font-size: 14px;
    color: var(--text-primary);
    flex: 1;
}

.grundriss-panel-toggle {
    font-size: 10px;
    color: var(--text-muted);
    line-height: 1;
    transition: transform 0.15s;
}

.grundriss-panel-angle {
    padding: 0 12px 8px 38px;
}

.grundriss-panel-angle label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.grundriss-panel-angle .dialog-input {
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    margin-bottom: 0;
}

/* ── Datei-Tab aktiv: Sidebar + Statusleiste ausblenden ── */
#app-main.datei-mode #sidebar {
    display: none;
}

#app-main.datei-mode #app-footer {
    display: none;
}