* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background-color: #f0f2f5;
    color: #2c3e50;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Верхняя шапка */
.top-bar {
    background: #1e293b;
    color: #fff;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    z-index: 10;
}

.brand strong {
    font-size: 18px;
    color: #38bdf8;
}

.brand span {
    font-size: 13px;
    color: #cbd5e1;
    margin-left: 6px;
}

.top-actions {
    display: flex;
    gap: 10px;
}

/* Основная рабочая зона */
.workspace {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Секция холста */
.canvas-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #cbd5e1;
    overflow: hidden;
}

.toolbar {
    background: #ffffff;
    padding: 8px 16px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
}

.tool-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.group-label {
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    text-transform: uppercase;
}

.status-bar {
    background: #fef9c3;
    color: #854d0e;
    padding: 7px 16px;
    font-size: 13px;
    border-bottom: 1px solid #fde047;
}

.status-bar.drawing-active {
    background: #dbeafe;
    color: #1e40af;
    border-bottom-color: #93c5fd;
}

.canvas-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
    padding: 20px;
}

.canvas-container {
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    background: #fff;
}

/* Правая панель каталога */
.sidebar {
    width: 350px;
    background: #ffffff;
    border-left: 1px solid #e2e8f0;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.panel {
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 16px;
}

.panel:last-child {
    border-bottom: none;
}

.panel h3 {
    font-size: 15px;
    margin-bottom: 4px;
    color: #0f172a;
}

.hint {
    font-size: 12px;
    color: #64748b;
    margin-bottom: 10px;
}

/* Каталог плитки */
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

.tile-card {
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    padding: 5px;
    cursor: pointer;
    transition: all 0.15s;
    text-align: center;
    background: #f8fafc;
}

.tile-card:hover {
    border-color: #94a3b8;
}

.tile-card.active {
    border-color: #2563eb;
    background: #eff6ff;
    box-shadow: 0 0 0 2px rgba(37,99,235,0.2);
}

.tile-card img {
    width: 100%;
    height: 64px;
    object-fit: cover;
    border-radius: 4px;
    display: block;
    margin-bottom: 4px;
}

.tile-card span {
    font-size: 12px;
    font-weight: 600;
    display: block;
}

/* Ползунки настроек */
.controls {
    display: flex;
    flex-direction: column;
    gap: 9px;
    background: #f8fafc;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
}

.controls label {
    display: flex;
    flex-direction: column;
    font-size: 12px;
    color: #334155;
    gap: 4px;
}

.controls select, .controls input[type="range"] {
    width: 100%;
    cursor: pointer;
}

.controls select {
    padding: 5px;
    border-radius: 4px;
    border: 1px solid #cbd5e1;
    font-size: 12px;
}

/* Каталог декора */
.decor-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.decor-card {
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 8px 6px;
    cursor: pointer;
    background: #f8fafc;
    text-align: center;
    transition: all 0.15s;
}

.decor-card:hover {
    border-color: #2563eb;
    background: #eff6ff;
    transform: translateY(-1px);
}

.decor-card img {
    max-width: 100%;
    height: 44px;
    object-fit: contain;
    margin-bottom: 4px;
}

.decor-card span {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: #334155;
}

/* Блок спецификации */
.spec-box {
    background: #f8fafc;
    border: 1px dashed #cbd5e1;
    border-radius: 6px;
    padding: 10px;
    font-size: 12px;
    line-height: 1.5;
    margin: 8px 0 10px;
    color: #334155;
}

/* Кнопки */
.btn {
    padding: 7px 12px;
    font-size: 13px;
    font-weight: 500;
    border-radius: 5px;
    border: 1px solid #cbd5e1;
    background: #ffffff;
    color: #1e293b;
    cursor: pointer;
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.btn:hover { background: #f1f5f9; }
.btn-primary { background: #2563eb; color: #fff; border-color: #2563eb; }
.btn-primary:hover { background: #1d4ed8; }
.btn-warning { background: #f59e0b; color: #fff; border-color: #f59e0b; }
.btn-warning:hover { background: #d97706; }
.btn-success { background: #10b981; color: #fff; border-color: #10b981; }
.btn-success:hover { background: #059669; }
.btn-accent { background: #059669; color: #fff; border-color: #059669; }
.btn-danger { background: #ef4444; color: #fff; border-color: #ef4444; }
.btn-outline { background: transparent; color: #fff; border-color: #475569; }
.btn-outline:hover { background: #334155; }
.full-width { width: 100%; padding: 10px; font-weight: 600; }