:root {
    --bg-color: #1e1e1e;
    --primary-bg-color: #2a2a2a;
    --secondary-bg-color: #3c3c3c;
    --text-color: #d4d4d4;
    --accent-color: #007acc;
    --border-color: #4a4a4a;
}

html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
}

#app-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}

/* Top Menu */
#top-menu {
    background-color: var(--primary-bg-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    padding: 0 10px;
    align-items: center;
    flex-shrink: 0;
}

#logo {
    font-family: 'Consolas', 'Monaco', 'Andale Mono', 'Ubuntu Mono', monospace;
    font-size: 20px;
    font-weight: bold;
    padding: 8px 12px;
    background-image: linear-gradient(to right, #00ff00, #8a2be2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 5px rgba(0, 255, 0, 0.5), 0 0 10px rgba(138, 43, 226, 0.5);
    margin-left: auto;
    order: 2;
}

.menu-item {
    position: relative;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 14px;
    order: 1;
}

.menu-item:hover { background-color: var(--accent-color); }
.dropdown-content { display: none; position: absolute; background-color: var(--primary-bg-color); min-width: 160px; box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2); z-index: 1000; border: 1px solid var(--border-color); }
.dropdown-content a { color: var(--text-color); padding: 12px 16px; text-decoration: none; display: block; }
.dropdown-content a:hover { background-color: var(--accent-color); }
.menu-item:hover .dropdown-content { display: block; }

/* Main Content */
#main-content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    overflow: hidden;
}

/* Ribbon Toolbar - ATUALIZADO */
#ribbon-container {
    display: flex;
    flex-direction: column;
    background-color: var(--primary-bg-color);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

#ribbon-tabs {
    display: flex;
    flex-direction: row;
    background-color: var(--secondary-bg-color);
    border-bottom: 1px solid var(--border-color);
}

.ribbon-tab {
    background: none;
    border: none;
    color: var(--text-color);
    padding: 8px 16px;
    cursor: pointer;
    font-size: 12px;
    text-transform: uppercase;
}

.ribbon-tab.active {
    background-color: var(--primary-bg-color);
    border-bottom: 2px solid var(--accent-color);
    font-weight: bold;
}

.ribbon-tab:hover:not(.active) {
    background-color: var(--primary-bg-color);
}

.ribbon-tab-content {
    display: none;
    flex-direction: row;
    align-items: flex-start;
    gap: 5px;
    padding: 5px;
    overflow-x: auto;
    overflow-y: hidden;
}

.ribbon-tab-content.active {
    display: flex;
}

#ribbon-toolbar {
    display: flex;
}


.ribbon-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 5px 10px;
    border-right: 1px solid var(--border-color);
}
.ribbon-panel:last-child {
    border-right: none;
}

/* Panel Content - ATUALIZADO */
.panel-content {
    display: flex;
    flex-direction: row; /* Garante a direção horizontal */
    gap: 5px;
    /* flex-wrap e max-width foram removidos para manter tudo em uma linha */
}

.panel-title {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-color);
    margin-top: 8px;
    white-space: nowrap; /* Impede que o título quebre linha */
}

/* Regras para os botões permanecem as mesmas */
.tool-button {
    background-color: var(--secondary-bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    width: 40px;
    height: 40px;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tool-button .icon svg {
    width: 24px; height: 24px; stroke: currentColor; stroke-width: 2; fill: none;
}

.tool-button:hover { background-color: var(--accent-color); }
.tool-button.active { background-color: var(--accent-color); border-color: var(--accent-color); }

/* Viewport */
#viewport-container {
    flex-grow: 1;
    position: relative;
}

#viewport { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
canvas { display: block; }

/* Status Bar */
#statusbar {
    background-color: var(--primary-bg-color);
    padding: 5px 10px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 12px;
    flex-shrink: 0;
}

#command-line { flex-grow: 1; background-color: var(--secondary-bg-color); border: 1px solid var(--border-color); color: var(--text-color); padding: 4px; border-radius: 2px; }
#snap-toggles { display: flex; gap: 5px; }
.snap-toggle { background-color: var(--secondary-bg-color); color: var(--text-color); border: 1px solid var(--border-color); padding: 4px 8px; cursor: pointer; border-radius: 4px; }
.snap-toggle.active { background-color: var(--accent-color); }
#coords { min-width: 120px; text-align: right; }

/* Snap Dropdown */
.snap-dropdown {
    position: relative;
    display: inline-block;
}

#osnap-menu {
    display: none; /* Hidden by default */
    position: absolute;
    bottom: 100%; /* Position above the button */
    left: 0;
    background-color: var(--primary-bg-color);
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1000;
    border: 1px solid var(--border-color);
    margin-bottom: 5px; /* Space between menu and button */
}

#osnap-menu a {
    color: var(--text-color);
    padding: 8px 12px;
    text-decoration: none;
    display: block;
    font-size: 13px;
}

#osnap-menu a:hover {
    background-color: var(--accent-color);
}

#osnap-menu a.active {
    background-color: var(--accent-color);
    font-weight: bold;
}

/* Snap Tooltip */
#snap-tooltip {
    position: absolute;
    display: none; /* Hidden by default */
    background-color: var(--primary-bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    pointer-events: none; /* So it doesn't interfere with mouse events */
    z-index: 1001; /* Above the osnap menu */
    text-transform: capitalize;
    transition: background-color 0.1s, color 0.1s;
}

/* Specific styles for different snap types */
#snap-tooltip.snap-endpoint { background-color: #007acc; color: white; }
#snap-tooltip.snap-midpoint { background-color: #28a745; color: white; }
#snap-tooltip.snap-center { background-color: #ffc107; color: black; }
#snap-tooltip.snap-intersection { background-color: #dc3545; color: white; }
#snap-tooltip.snap-quadrant { background-color: #6f42c1; color: white; }
#snap-tooltip.snap-perpendicular { background-color: #fd7e14; color: white; }
#snap-tooltip.snap-tangent { background-color: #20c997; color: white; }
#snap-tooltip.snap-extension { background-color: #6610f2; color: white; }
#snap-tooltip.snap-ortho { background-color: #17a2b8; color: white; }
#snap-tooltip.snap-grid { background-color: #6c757d; color: white; }

/* Custom Cursor */
#viewport-container {
    cursor: none;
}

#custom-cursor-v,
#custom-cursor-h {
    position: absolute;
    background-color: var(--text-color);
    pointer-events: none;
    z-index: 9990; /* Just below snap tooltip */
}

#custom-cursor-v {
    width: 1px;
    height: 30px; /* Crosshair line length */
}

#custom-cursor-h {
    height: 1px;
    width: 30px; /* Crosshair line length */
}

#custom-cursor-pickbox {
    position: absolute;
    width: 10px;
    height: 10px;
    border: 1px solid var(--text-color);
    pointer-events: none;
    z-index: 9991;
}

/* Dimensional Input */
#dimensional-input-container {
    position: absolute;
    z-index: 10000; /* On top of everything */
    pointer-events: all; /* Needs to be clickable */
}

#dimensional-input-box {
    background-color: #f0f8ff; /* AliceBlue, for high visibility */
    color: #1e1e1e;
    border: 1px solid var(--accent-color);
    padding: 4px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    width: 100px; /* Fixed width */
    text-align: center;
}

/* Command Line Container */
#cmd-container {
    display: flex;
    position: relative;
    flex-grow: 1;
    align-items: center;
}

#command-line {
    flex-grow: 1;
    background-color: var(--secondary-bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 6px;
    padding-right: 30px; /* Space for inner button */
    border-radius: 2px;
    font-family: 'Consolas', 'Monaco', monospace;
    min-width: 0;
}

#cmd-history-btn {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    background-color: transparent;
    border: none;
    color: var(--text-color);
    padding: 0 10px;
    cursor: pointer;
    border-radius: 0 2px 2px 0;
    flex-shrink: 0;
}

#cmd-history-btn:hover {
    background-color: var(--accent-color);
}

#cmd-history {
    display: none;
    position: absolute;
    bottom: 100%; /* pop upwards */
    left: 0;
    width: 100%;
    max-height: 200px;
    background-color: var(--primary-bg-color);
    border: 1px solid var(--border-color);
    border-bottom: none;
    box-shadow: 0 -4px 8px rgba(0,0,0,0.3);
    overflow-y: auto;
    z-index: 2000;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 12px;
}

.cmd-history-item {
    padding: 4px 8px;
    border-bottom: 1px solid var(--border-color);
}
.cmd-history-item:last-child {
    border-bottom: none;
}
.cmd-history-item.cmd-in {
    color: #00ff00; /* Green for input */
}
.cmd-history-item.cmd-out {
    color: #d4d4d4; /* Default for output/info */
}
.cmd-history-item.cmd-err {
    color: #ff5555; /* Red for error */
}