/* ========================================================================
   ModelEditorScreen — тёмная тема (под весь UI редактора Рублокса).

   Палитра:
     #1b1b1b / #252525 / #2e2e2e — фоны панелей
     #e8e8ea — основной текст
     #9a9a9e — приглушённый текст
     #4f74ff / #3a57d8 — синий брэнд
   ======================================================================== */

.screen {
    position: fixed;
    inset: 0;
    z-index: 5000;
    background: #1b1b1b;
    display: flex;
    flex-direction: column;
    font-family: "Roboto Condensed", system-ui, -apple-system, sans-serif;
    color: #e8e8ea;
    animation: meSlideIn 0.22s cubic-bezier(0.34, 1.4, 0.64, 1);
}

@keyframes meSlideIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* === Шапка — синий gradient (как у Game Settings и Toolbox) === */
.header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 22px;
    background: linear-gradient(135deg, #4f74ff 0%, #3a57d8 100%);
    color: #fff;
    border-bottom: 1px solid rgba(0, 0, 0, 0.3);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
    flex-shrink: 0;
}

.backBtn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 10px;
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all 150ms ease;
    font-family: inherit;
    flex-shrink: 0;
}

.backBtn:hover {
    background: rgba(255, 255, 255, 0.30);
    transform: translateX(-2px);
}

.titleBlock {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.titleInput {
    background: transparent;
    border: none;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.28);
    color: #fff;
    font-size: 17px;
    font-weight: 800;
    padding: 2px 0;
    outline: none;
    font-family: inherit;
    width: 100%;
    max-width: 380px;
    letter-spacing: -0.2px;
}

.titleInput:focus {
    border-bottom-color: rgba(255, 255, 255, 0.85);
}

.titleInput::placeholder {
    color: rgba(255, 255, 255, 0.55);
}

.title {
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.2px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.subtitle {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.82);
    display: flex;
    align-items: center;
    gap: 8px;
}

.dirtyDot {
    color: #ffd166;
    font-size: 20px;
    line-height: 0;
}

.actions {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-shrink: 0;
}

.savedNote {
    font-size: 12px;
    font-weight: 700;
    color: #d2f5d8;
}

.errorNote {
    font-size: 12px;
    font-weight: 700;
    color: #ffd0d0;
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Кнопки Undo/Redo/Reference */
.iconBtn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 12px;
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 9px;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 150ms ease;
    font-family: inherit;
}

.iconBtn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.28);
    transform: translateY(-1px);
}

.iconBtn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.iconBtnActive {
    background: rgba(255, 209, 102, 0.30);
    border-color: rgba(255, 209, 102, 0.75);
    color: #fff7d0;
}

.iconBtnActive:hover {
    background: rgba(255, 209, 102, 0.40);
}

.saveBtn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    background: #fff;
    border: none;
    border-radius: 10px;
    color: #3a57d8;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    transition: all 150ms ease;
    font-family: inherit;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.saveBtn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.45);
}

.saveBtn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

/* === Workspace: sidebar + canvas === */
.workspace {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* === Sidebar — тёмная === */
.sidebar {
    width: 280px;
    flex-shrink: 0;
    background: #252525;
    border-right: 1px solid #3a3a3a;
    overflow-y: auto;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, 0.3);
}

.section {
    background: #1b1b1b;
    border: 1px solid #3a3a3a;
    border-radius: 10px;
    padding: 10px 12px;
}

.sectionTitle {
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: #9a9a9e;
    margin-bottom: 8px;
}

/* Tools grid */
.toolsGrid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.toolBtn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 10px 6px;
    background: #2e2e2e;
    border: 1px solid #3a3a3a;
    border-radius: 8px;
    color: #e8e8ea;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    transition: all 150ms ease;
    font-family: inherit;
}

.toolBtn:hover {
    background: rgba(79, 116, 255, 0.18);
    border-color: #4f74ff;
    color: #6d8aff;
}

.toolBtnActive {
    background: linear-gradient(135deg, #4f74ff 0%, #3a57d8 100%);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 12px rgba(79, 116, 255, 0.36);
}

.toolBtnActive:hover {
    background: linear-gradient(135deg, #4f74ff 0%, #3a57d8 100%);
    color: #fff;
}

/* === Material mode tabs (Цвет / Текстура) === */
.matModeTabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    margin-bottom: 10px;
    padding: 3px;
    background: #1b1b1b;
    border-radius: 8px;
}

.matModeTab {
    padding: 7px 0;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: #9a9a9e;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 150ms ease;
    font-family: inherit;
}

.matModeTab:hover {
    color: #e8e8ea;
    background: rgba(255, 255, 255, 0.06);
}

.matModeTabActive {
    background: linear-gradient(135deg, #4f74ff 0%, #3a57d8 100%);
    color: #fff;
    box-shadow: 0 2px 6px rgba(79, 116, 255, 0.32);
}

.matModeTabActive:hover {
    background: linear-gradient(135deg, #4f74ff 0%, #3a57d8 100%);
    color: #fff;
}

/* === Texture grid === */
.textureGrid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 4px;
}

.textureSwatch {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 4px;
    background: #2e2e2e;
    border: 2px solid #3a3a3a;
    border-radius: 6px;
    color: #e8e8ea;
    font-size: 10px;
    font-weight: 700;
    cursor: pointer;
    transition: all 150ms ease;
    font-family: inherit;
}

.textureSwatch img {
    width: 100%;
    height: 36px;
    object-fit: cover;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    border-radius: 3px;
}

.textureSwatch span {
    line-height: 1.1;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.textureSwatch:hover {
    border-color: #4f74ff;
    color: #6d8aff;
}

.textureSwatchActive {
    border-color: #f59e0b;
    box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.35);
}

.textureSwatchActive:hover {
    border-color: #f59e0b;
}

/* === Palette === */
.paletteGrid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
    margin-bottom: 8px;
}

.colorSwatch {
    aspect-ratio: 1;
    border: 2px solid #4a4a4a;
    border-radius: 5px;
    cursor: pointer;
    padding: 0;
    transition: transform 100ms ease, border-color 100ms ease;
}

.colorSwatch:hover {
    transform: scale(1.12);
    border-color: #4f74ff;
}

.colorSwatchActive {
    border-color: #f59e0b;
    box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.4);
    transform: scale(1.06);
}

.colorPickerRow {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
}

.colorPicker {
    width: 36px;
    height: 30px;
    padding: 0;
    border: 1px solid #4a4a4a;
    border-radius: 6px;
    background: #2e2e2e;
    cursor: pointer;
}

.colorHex {
    font-family: ui-monospace, monospace;
    font-size: 12px;
    color: #9a9a9e;
    letter-spacing: 0.5px;
}

/* === Подсказки внутри секций === */
.hintText {
    font-size: 11px;
    color: #9a9a9e;
    line-height: 1.5;
    margin-top: 8px;
}

.muted {
    color: #9a9a9e;
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0;
    text-transform: none;
}

/* === Слайдер для Y-уровня === */
.slider {
    width: 100%;
    margin: 6px 0 0;
    accent-color: #4f74ff;
    cursor: pointer;
}

/* === Кнопки выбора оси X/Y/Z === */
.axisRow {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 4px;
    margin-bottom: 4px;
}

.axisBtn {
    padding: 8px 0;
    background: #2e2e2e;
    border: 1px solid #3a3a3a;
    border-radius: 6px;
    color: #e8e8ea;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    transition: all 150ms ease;
    font-family: inherit;
    letter-spacing: 0.5px;
}

.axisBtn:hover {
    background: rgba(79, 116, 255, 0.18);
    border-color: #4f74ff;
    color: #6d8aff;
}

.axisBtnActive {
    background: linear-gradient(135deg, #4f74ff 0%, #3a57d8 100%);
    border-color: transparent;
    color: #fff;
}

/* === Size buttons === */
.sizeRow {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 4px;
}

.sizeBtn {
    padding: 8px 0;
    background: #2e2e2e;
    border: 1px solid #3a3a3a;
    border-radius: 6px;
    color: #e8e8ea;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 150ms ease;
    font-family: inherit;
}

.sizeBtn:hover {
    background: rgba(79, 116, 255, 0.18);
    border-color: #4f74ff;
    color: #6d8aff;
}

.sizeBtnActive {
    background: linear-gradient(135deg, #4f74ff 0%, #3a57d8 100%);
    border-color: transparent;
    color: #fff;
}

/* === Danger button === */
.dangerBtn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 9px;
    background: rgba(239, 68, 68, 0.16);
    border: 1px solid rgba(239, 68, 68, 0.4);
    border-radius: 8px;
    color: #ff6b6b;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 150ms ease;
    font-family: inherit;
}

.dangerBtn:hover:not(:disabled) {
    background: #ef4444;
    color: #fff;
    border-color: #ef4444;
}

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

/* === Hint block === */
.hintBlock {
    margin-top: auto;
    padding: 10px 12px;
    background: #1b1b1b;
    border: 1px dashed #4a4a4a;
    border-radius: 8px;
    color: #9a9a9e;
    font-size: 11px;
    line-height: 1.6;
}

.hintBlock b {
    color: #e8e8ea;
}

/* === Canvas wrap — тёмный фон 3D-вьюпорта === */
.canvasWrap {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: #141414;
}

.canvas {
    width: 100%;
    height: 100%;
    display: block;
    outline: none;
    cursor: crosshair;
}

/* === Оверлей загрузки существующей модели === */
.loadingOverlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    background: rgba(20, 20, 20, 0.82);
    backdrop-filter: blur(2px);
    z-index: 20;
}

.loadingSpinner {
    width: 42px;
    height: 42px;
    border: 4px solid #3a3a3a;
    border-top-color: #4f74ff;
    border-radius: 50%;
    animation: modelEditorSpin 0.8s linear infinite;
}

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

.loadingText {
    font-size: 14px;
    font-weight: 600;
    color: #9a9a9e;
}

/* === Режим интерактивного выделения превью === */
.previewOverlay {
    position: absolute;
    inset: 0;
    z-index: 25;
    cursor: crosshair;
    user-select: none;
}

/* Затемняющий слой — виден пока область не выделена. */
.previewDim {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    pointer-events: none;
}

/* Рамка выделения: внутри — чисто (модель видна), снаружи — затемнено
   через огромную box-shadow ("вырез окошка"). */
.previewSelBox {
    position: absolute;
    border: 2px solid #4f74ff;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.55);
    pointer-events: none;
    border-radius: 2px;
}

.previewHint {
    position: absolute;
    top: 22px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 18px;
    background: rgba(10, 10, 10, 0.85);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    pointer-events: none;
    white-space: nowrap;
}

.previewActions {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.previewCancelBtn,
.previewCreateBtn {
    padding: 9px 22px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
}

.previewCancelBtn {
    background: #2e2e2e;
    color: #e8e8ea;
    border: 1px solid #4a4a4a;
}
.previewCancelBtn:hover {
    background: #383838;
}

.previewCreateBtn {
    background: #4f74ff;
    color: #fff;
}
.previewCreateBtn:hover {
    background: #6d8aff;
}
.previewCreateBtn:disabled {
    background: #4a4a4a;
    cursor: not-allowed;
}

/* === Placeholder для smooth-режима (этап 7) === */
.body {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #1b1b1b;
}

.placeholder {
    max-width: 540px;
    padding: 40px 32px;
    text-align: center;
    background: #252525;
    border: 1px solid #3a3a3a;
    border-radius: 18px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
}

.placeholderIcon {
    font-size: 80px;
    margin-bottom: 16px;
    opacity: 0.7;
}

.placeholderTitle {
    font-size: 22px;
    font-weight: 800;
    color: #e8e8ea;
    margin-bottom: 14px;
    letter-spacing: -0.3px;
}

.placeholderText {
    font-size: 14px;
    color: #9a9a9e;
    line-height: 1.55;
    margin-bottom: 12px;
}

.placeholderText kbd {
    display: inline-block;
    padding: 1px 7px;
    background: #1b1b1b;
    border: 1px solid #4a4a4a;
    border-radius: 5px;
    font-family: ui-monospace, monospace;
    font-size: 12px;
    color: #e8e8ea;
}