/* ============================================================================
   3D DESIGNER — STANDALONE STYLESHEET
   Self-contained: theme variables + component theming + designer layout.
   Does NOT depend on style.css. (Bootstrap + Font Awesome are still loaded for
   base components/icons.) Edit freely without affecting the rest of the site.
   ============================================================================ */

/* ---------------------------------------------------------------- THEME VARS */
:root,
[data-theme="light"] {
    --primary: #1976d2;
    --primary-2: #0d47a1;
    --primary-rgb: 25, 118, 210;
    --accent: #ff9800;
    --accent-2: #f57c00;
    --accent-rgb: 255, 152, 0;

    --body-bg: linear-gradient(135deg, #e3f2fd 0%, #90caf9 100%);
    --navbar-bg: linear-gradient(90deg, #0d47a1, #1565c0);
    --footer-bg: #0d2438;
    --card-bg: #ffffff;
    --card-muted-bg: #f1f5f9;
    --text: #1a2b3c;
    --text-muted: #5b6b7b;
    --border: #d0d9e3;
    --input-bg: #ffffff;
    --input-text: #1a2b3c;
}

[data-theme="dark"] {
    --primary: #2196f3;
    --primary-2: #1565c0;
    --primary-rgb: 33, 150, 243;
    --accent: #ffa726;
    --accent-2: #fb8c00;
    --accent-rgb: 255, 167, 38;

    --body-bg: linear-gradient(135deg, #0a1929 0%, #0d2538 100%);
    --navbar-bg: linear-gradient(90deg, #061a2e, #0d3a66);
    --footer-bg: #061a2e;
    --card-bg: #0f2942;
    --card-muted-bg: #143251;
    --text: #e3edf7;
    --text-muted: #9fb3c8;
    --border: #244b6b;
    --input-bg: #0c2236;
    --input-text: #e8f1fb;
}

/* ------------------------------------------------------------- DESIGNER SIZES */
:root {
    --dz-navbar-offset: 55px;   /* height of the top site navbar to subtract */
    --dz-left-width: 92px;      /* left shape palette width (fits 2 columns) */
    --dz-right-width: 248px;    /* right properties panel width */
    --dz-objlist-height: 38vh;  /* object list scroll height */
    --dz-canvas-bg: #222222;    /* 3D viewport background */
    --dz-gap: 0.35rem;          /* toolbar button gap */
    --dz-pad: 0.5rem;           /* panel padding */

    /* Button sizing */
    --dz-btn-height: 20px;
    --dz-left-btn-width: calc(50% - 3px); /* 2 buttons per row */
    --dz-top-btn-minwidth: 0;
    --dz-btn-font: 0.6rem;
    --dz-tip-offset: 14px;

    /* Axis label colours (match the gizmo) */
    --dz-axis-x: #ff5c5c;
    --dz-axis-y: #51cf66;
    --dz-axis-z: #4dabf7;
}

/* --------------------------------------------------------------------- BASE */
* { box-sizing: border-box; }

body {
    background: var(--body-bg);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--text);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    transition: background 0.4s ease, color 0.4s ease;
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--accent); }
.text-info { color: var(--accent) !important; }
.text-muted { color: var(--text-muted) !important; }

/* --------------------------------------------------------------------- NAVBAR */
.navbar {
    background: var(--navbar-bg) !important;
    box-shadow: 0 1px 10px rgba(0, 0, 0, 0.2);
}
.navbar .btn { border-radius: 8px; font-weight: 600; }
.navbar .btn-accent { background: linear-gradient(90deg, var(--accent), var(--accent-2)); border: none; color: #1a1a1a; }
.navbar .btn-accent:hover { filter: brightness(1.08); color: #000; }
.navbar .btn-ghost { border: 2px solid rgba(255, 255, 255, 0.6); color: #fff; background: transparent; }
.navbar .btn-ghost:hover { background: rgba(255, 255, 255, 0.15); color: #fff; }
.navbar .btn-ghost.active { background: rgba(255, 255, 255, 0.92); color: var(--primary-2); border-color: #fff; }

/* --------------------------------------------------------------------- FOOTER */
.app-footer { background: var(--footer-bg); border-top: 1px solid var(--border); }
.app-footer a.text-light:hover { color: var(--accent) !important; }

/* --------------------------------------------------------------------- CARDS */
.card { border: none; border-radius: 12px; overflow: hidden; background-color: var(--card-bg); color: var(--text); }
.card-body { background-color: var(--card-bg); color: var(--text); }
.card-header.bg-light { background: var(--card-muted-bg) !important; color: var(--text); padding: 0.75rem 1rem; }
.card-header h6 { margin: 0; font-size: 0.95rem; }
.card.border-secondary, .card.border-info { border: 2px solid var(--border) !important; }

/* --------------------------------------------------------------------- FORMS */
.form-label { color: var(--text); margin-bottom: 0.5rem; font-weight: 500; }
.form-control,
.form-select,
.input-group .form-control {
    border-radius: 8px;
    border: 1px solid var(--border);
    background-color: var(--input-bg);
    color: var(--input-text);
    padding: 0.2rem 0.4rem;
    font-size: 0.5rem;
    transition: all 0.2s ease;
}
.form-control:focus,
.form-select:focus {
    background-color: var(--input-bg);
    color: var(--input-text);
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--primary-rgb), 0.25);
}
.form-control::placeholder { color: var(--text-muted); }
.input-group .input-group-text {
    background-color: var(--card-muted-bg);
    border: 2px solid var(--border);
    border-radius: 8px;
    font-weight: 500;
    color: var(--primary);
}
.form-check-input { background-color: var(--input-bg); border: 2px solid var(--border); }
.form-check-input:checked { background-color: var(--primary); border-color: var(--primary); }
.form-check-input:focus { border-color: var(--primary); box-shadow: 0 0 0 0.2rem rgba(var(--primary-rgb), 0.25); }
.form-check-label { color: var(--text); }

/* --------------------------------------------------------------------- BUTTONS */
.btn-primary { background: linear-gradient(90deg, var(--primary), var(--primary-2)); border: none; border-radius: 8px; font-weight: 600; }
.btn-primary:hover, .btn-primary:focus { background: linear-gradient(90deg, var(--primary-2), var(--primary)); color: #fff; box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.4); }
.btn-success { background: linear-gradient(90deg, var(--accent), var(--accent-2)); border: none; border-radius: 8px; font-weight: 600; color: #1a1a1a; }
.btn-success:hover, .btn-success:focus { background: linear-gradient(90deg, var(--accent-2), var(--accent)); color: #000; box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.45); }
.btn-outline-primary { color: var(--primary); border: 1px solid var(--primary); border-radius: 6px; background: transparent; }
.btn-outline-primary:hover, .btn-outline-primary.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-outline-secondary { color: var(--text); border: 1px solid var(--border); border-radius: 6px; background: transparent; }
.btn-outline-secondary:hover, .btn-outline-secondary.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-outline-info { color: var(--primary); border: 1px solid var(--primary); border-radius: 6px; }
.btn-outline-info:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-outline-success { color: var(--accent-2); border: 1px solid var(--accent-2); border-radius: 6px; }
.btn-outline-success:hover { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }

/* --------------------------------------------------------------------- MODAL */
.modal-content { background-color: var(--card-bg); color: var(--text); border: 1px solid var(--border); }
.modal-header, .modal-footer { border-color: var(--border); }

/* --------------------------------------------------------------- TOOLTIP (right of cursor) */
.dz-tip { position: relative; }
.dz-tip::after {
    content: attr(data-tip);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-left: var(--dz-tip-offset);
    white-space: nowrap;
    background: #111;
    color: #fff;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 0.72rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.12s ease;
    z-index: 3000;
}
.dz-tip:hover::after { opacity: 0.95; }

/* Transient toast (e.g. "Settings saved") */
.dz-toast {
    position: fixed; left: 50%; bottom: 24px;
    transform: translateX(-50%) translateY(8px);
    background: #111; color: #fff;
    padding: 8px 16px; border-radius: 8px;
    font-size: 0.8rem; z-index: 5000;
    opacity: 0; pointer-events: none;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
    transition: opacity 0.2s ease, transform 0.2s ease;
}
.dz-toast.show { opacity: 0.95; transform: translateX(-50%) translateY(0); }

/* Sculpt control bar (overlays the viewport in sculpt mode) */
.dz-sculptbar {
    position: absolute; top: 8px; left: 40%; transform: translateX(-50%);
    z-index: 30; display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
    background: rgba(0, 0, 0, 0.78); color: #fff;
    padding: 6px 12px; border-radius: 8px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    font-size: 0.8rem; max-width: 96%;
}
.dz-sculptbar .btn.active { background: #fff; color: #111; }
.dz-sc-lbl { display: flex; align-items: center; gap: 5px; margin: 0; white-space: nowrap; }
.dz-sculptbar input[type=range] { width: 90px; }
.dz-sculptbar .pgrp { align-items: center; gap: 6px 8px; flex-wrap: wrap; } /* parametric part field groups (display toggled in JS) */

/* Busy spinner for heavy operations (CSG in worker) */
.dz-busy {
    position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
    z-index: 7500; display: none; align-items: center; gap: 10px;
    background: rgba(0, 0, 0, 0.82); color: #fff;
    padding: 12px 20px; border-radius: 10px; font-size: 0.9rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}
.dz-spin { width: 16px; height: 16px; border: 2px solid rgba(255, 255, 255, 0.3); border-top-color: #fff; border-radius: 50%; animation: dzspin 0.7s linear infinite; display: inline-block; }
@keyframes dzspin { to { transform: rotate(360deg); } }

/* Determinate progress popup (e.g. importing a lithophane STL) */
.dz-prog {
    position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
    z-index: 7600; display: none; flex-direction: column; gap: 9px; min-width: 250px;
    background: rgba(0, 0, 0, 0.85); color: #fff;
    padding: 16px 20px; border-radius: 10px; font-size: 0.9rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}
.dz-prog-label { display: flex; align-items: center; gap: 9px; }
.dz-prog-track { width: 100%; height: 10px; background: rgba(255, 255, 255, 0.15); border-radius: 6px; overflow: hidden; }
.dz-prog-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 6px; transition: width 0.2s ease; }

/* Live transform read-out while dragging the gizmo */
.dz-hud {
    position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%);
    z-index: 5500; display: none; pointer-events: none;
    background: rgba(0, 0, 0, 0.82); color: #fff;
    padding: 6px 14px; border-radius: 8px; font-size: 0.85rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    font-variant-numeric: tabular-nums; letter-spacing: 0.3px;
}

/* In-app notifications (replace native alert) */
.dz-note-wrap {
    position: fixed; top: 64px; left: 50%; transform: translateX(-50%);
    z-index: 6000; display: flex; flex-direction: column; gap: 8px;
    align-items: center; width: min(92vw, 420px); pointer-events: none;
}
.dz-note {
    pointer-events: auto; width: 100%;
    display: flex; align-items: flex-start; gap: 10px;
    background: var(--card-bg); color: var(--text);
    border: 1px solid var(--border); border-left: 4px solid var(--primary);
    border-radius: 8px; padding: 10px 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    font-size: 0.85rem; opacity: 0; transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}
.dz-note.show { opacity: 1; transform: translateY(0); }
.dz-note-success { border-left-color: #3fb950; }
.dz-note-error { border-left-color: #e5534b; }
.dz-note-warn { border-left-color: #d29922; }
.dz-note-ic { margin-top: 1px; font-size: 1rem; }
.dz-note-success .dz-note-ic { color: #3fb950; }
.dz-note-error .dz-note-ic { color: #e5534b; }
.dz-note-warn .dz-note-ic { color: #d29922; }
.dz-note-info .dz-note-ic { color: var(--primary); }
.dz-note-msg { flex: 1 1 auto; white-space: pre-line; line-height: 1.35; }
.dz-note-x { flex: 0 0 auto; background: none; border: none; color: var(--text-muted); font-size: 1.15rem; line-height: 1; cursor: pointer; padding: 0 2px; }
.dz-note-x:hover { color: var(--text); }

/* Styled confirm/prompt dialogs (replace native confirm/prompt) */
.dz-dlg-ov {
    position: fixed; inset: 0; z-index: 7000;
    background: rgba(0, 0, 0, 0.45);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity 0.15s ease;
}
.dz-dlg-ov.show { opacity: 1; }
.dz-dlg {
    width: min(92vw, 360px);
    background: var(--card-bg); color: var(--text);
    border: 1px solid var(--border); border-radius: 10px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    padding: 16px; transform: translateY(-8px); transition: transform 0.15s ease;
}
.dz-dlg-ov.show .dz-dlg { transform: translateY(0); }
.dz-dlg-msg { font-size: 0.9rem; white-space: pre-line; line-height: 1.4; margin-bottom: 10px; }
.dz-dlg-input { margin-bottom: 12px; }
.dz-dlg-btns { display: flex; justify-content: flex-end; gap: 8px; }
.dz-keys { display: flex; flex-direction: column; gap: 2px; max-height: 60vh; overflow: auto; }
.dz-key-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 0.82rem; padding: 4px 2px; border-bottom: 1px solid var(--border); }
.dz-key-row kbd { background: var(--card-muted-bg); color: var(--text); border: 1px solid var(--border); border-radius: 5px; padding: 2px 7px; font-size: 0.72rem; white-space: nowrap; }

/* Right-click context menu */
.dz-ctx {
    position: fixed;
    display: none;
    z-index: 4000;
    min-width: 140px;
    max-height: 92vh;          /* never taller than the viewport */
    overflow-y: auto;
    padding: 3px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 7px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}
.dz-ctx-item {
    display: block;
    width: 100%;
    text-align: left;
    border: none;
    background: transparent;
    color: var(--text);
    padding: 1px 8px;
    border-radius: 4px;
    font-size: 0.65rem;
    line-height: 1.25;
    cursor: pointer;
}
.dz-ctx-item:hover { background: var(--primary); color: #fff; }
.dz-ctx-sep { height: 1px; background: var(--border); margin: 3px 2px; }

/* --------------------------------------------------------------- DESIGNER LAYOUT */
.designer-wrap { display: flex; flex-direction: column; height: calc(100vh - var(--dz-navbar-offset)); }

.designer-top {
    display: flex;
    flex-wrap: wrap;
    gap: var(--dz-gap);
    align-items: center;
    padding: 0.4rem 0.6rem;
    border-bottom: 1px solid var(--border);
    background: var(--card-bg);
}
.designer-top .sep { width: 1px; align-self: stretch; background: var(--border); margin: 0.1rem 0.15rem; }
.designer-top .dropdown-menu {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35); z-index: 3500; padding: 4px;
}
.designer-top .dropdown-item { color: var(--text); font-size: 0.65rem; border-radius: 5px; padding: 1px 10px; }
.designer-top .dropdown-item:hover, .designer-top .dropdown-item:focus { background: var(--primary); color: #fff; }
.designer-top .dropdown-divider { border-color: var(--border); margin: 4px 2px; }
.designer-top .form-control, .designer-top .form-select { font-size: 0.8rem; }
.designer-top .btn {
    height: var(--dz-btn-height);
    min-width: var(--dz-top-btn-minwidth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: var(--dz-btn-font);
}

.designer-main { display: flex; flex: 1 1 auto; min-height: 0; }

.designer-left {
    width: var(--dz-left-width);
    flex: 0 0 var(--dz-left-width);
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-content: flex-start;
    gap: 4px;
    padding: 0.4rem;
    border-right: 1px solid var(--border);
    overflow: visible;          /* don't clip tooltips */
    position: relative;
    z-index: 20;                /* sit above the 3D canvas so tooltips show on top */
    background: var(--card-bg);
}
.designer-left .btn {
    width: var(--dz-left-btn-width);
    height: var(--dz-btn-height);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--dz-btn-font);
}
.designer-left .pal-sep { flex: 0 0 100%; width: 100%; height: 1px; background: var(--border); margin: 0.15rem 0; }

.designer-view { position: relative; flex: 1 1 auto; min-width: 0; background: var(--dz-canvas-bg); }
#designerCanvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.designer-hint {
    position: absolute; left: 8px; bottom: 6px;
    color: #ddd; font-size: 0.72rem;
    background: rgba(0, 0, 0, 0.4); padding: 2px 8px; border-radius: 6px; pointer-events: none;
}
#csgStatus { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); display: none; }

.designer-right {
    width: var(--dz-right-width);
    flex: 0 0 var(--dz-right-width);
    padding: var(--dz-pad);
    border-left: 1px solid var(--border);
    overflow-y: auto;
    background: var(--card-bg);
}
.designer-right h6 { font-size: 0.8rem; margin: 0.4rem 0 0.3rem; }
.designer-right .form-label { margin-bottom: 0.15rem; }
#objList { max-height: var(--dz-objlist-height); overflow: auto; }

/* ----------------------------------------------- COLLAPSIBLE PANEL SECTIONS */
.dz-sec { border: 1px solid var(--border); border-radius: 8px; margin-bottom: 6px; background: var(--card-bg); }
.dz-sec-head { display: flex; align-items: center; justify-content: space-between; gap: 6px; padding: 4px 8px; }
.dz-sec-toggle {
    display: flex; align-items: center; gap: 6px;
    flex: 1 1 auto; cursor: pointer; user-select: none;
    font-size: 0.8rem; font-weight: 600; color: var(--accent);
}
.dz-sec-toggle .dz-caret { width: 10px; font-size: 0.7rem; transition: transform 0.15s ease; }
.dz-sec.collapsed .dz-sec-toggle .dz-caret { transform: rotate(-90deg); }
.dz-sec-body { padding: 6px 8px 8px; }
.dz-sec.collapsed .dz-sec-body { display: none; }

/* Nested sub-sections (inside "Selected"): lighter — dividers instead of cards */
.dz-sec-body .dz-sec { border: none; border-top: 1px solid var(--border); border-radius: 0; margin: 0; background: transparent; }
.dz-sec-body .dz-sec:first-child { border-top: none; }
.dz-sec-body .dz-sec-head { padding: 4px 0; }
.dz-sec-body .dz-sec-body { padding: 2px 0 6px; }
.dz-sec-body .dz-sec-toggle { font-size: 0.72rem; color: var(--text); }

/* Per-axis X/Y/Z labels (match the gizmo arrows) */
.dz-axis { margin-bottom: 1px; }
.dz-axis span { display: block; text-align: center; font-size: 0.68rem; font-weight: 700; line-height: 1; }
.dz-x { color: var(--dz-axis-x); }
.dz-y { color: var(--dz-axis-y); }
.dz-z { color: var(--dz-axis-z); }

/* Compact on small screens */
@media (max-width: 768px) {
    :root { --dz-right-width: 200px; --dz-left-width: 48px; }
    .designer-wrap { height: auto; }
    .designer-view { min-height: 50vh; }
}