.gravpro-app {
	--ink: #1C1B19;
	--canvas: #EAE4D6;
	--panel: #FBF9F4;
	--brass: #A97C3F;
	--brass-dark: #8A6530;
	--line: #DFD8C8;
	--muted: #726C60;
	--danger: #B4483A;

	font-family: "IBM Plex Sans", -apple-system, sans-serif;
	color: var(--ink);
	background: var(--panel);
	border: 1px solid var(--line);
	border-radius: 6px;
	margin: 32px auto;
	max-width: 1100px;
	overflow: hidden;
	box-shadow: 0 1px 3px rgba(20,18,14,0.08);
	clear: both;
}

.gravpro-app * { box-sizing: border-box; }

.gravpro-topbar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 12px;
	padding: 18px 22px;
	background: var(--panel);
	border-bottom: 1px solid var(--line);
}

.gravpro-topbar h2 {
	font-family: "Cinzel", serif;
	font-weight: 600;
	font-size: 17px;
	letter-spacing: 0.02em;
	margin: 0 0 3px;
	color: var(--ink);
}

.gravpro-topbar p {
	margin: 0;
	font-size: 12.5px;
	color: var(--muted);
}

.gravpro-topbar-actions {
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
}

.gravpro-app button {
	font-family: inherit;
	cursor: pointer;
}

.gravpro-btn-primary {
	background: var(--brass);
	color: #fff;
	border: none;
	border-radius: 3px;
	padding: 9px 14px;
	font-size: 13px;
	font-weight: 500;
}
.gravpro-btn-primary:hover { background: var(--brass-dark); }

.gravpro-btn-ghost {
	background: transparent;
	color: var(--ink);
	border: 1px solid var(--line);
	border-radius: 3px;
	padding: 9px 14px;
	font-size: 13px;
}
.gravpro-btn-ghost:hover { border-color: var(--brass); color: var(--brass-dark); }

.gravpro-btn-danger {
	background: transparent;
	color: var(--danger);
	border: 1px solid #E4C9C4;
	border-radius: 3px;
	padding: 8px 12px;
	font-size: 12.5px;
}
.gravpro-btn-danger:hover { background: #FBEEEC; }

.gravpro-workspace {
	display: flex;
	min-height: 460px;
	flex-direction: column;
}

.gravpro-sidebar {
	width: 100%;
	background: var(--panel);
	overflow-y: visible;
	max-height: none;
}

.gravpro-section {
	padding: 16px 18px;
	border-bottom: 1px solid var(--line);
}

.gravpro-section h3 {
	font-size: 11.5px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	color: var(--muted);
	margin: 0 0 12px;
}

.gravpro-btn-row {
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
}

.gravpro-btn-toggle {
	flex: 1;
	background: #fff;
	border: 1px solid var(--line);
	border-radius: 3px;
	padding: 9px 10px;
	font-size: 12.5px;
	color: var(--ink);
	text-align: center;
	transition: border-color 0.15s ease;
}
.gravpro-btn-toggle.active {
	border-color: var(--brass);
	background: #F4EADB;
	color: var(--brass-dark);
	font-weight: 500;
}

.gravpro-preset-row {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.gravpro-btn-preset {
	background: #fff;
	border: 1px solid var(--line);
	border-radius: 20px;
	padding: 7px 13px;
	font-size: 12px;
	color: var(--ink);
}
.gravpro-btn-preset.active {
	border-color: var(--brass);
	background: #F4EADB;
	color: var(--brass-dark);
	font-weight: 500;
}

.gravpro-swatch-grid {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
}

.gravpro-swatch-item {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 6px;
	width: 58px;
}

.gravpro-swatch-material {
	width: 36px;
	height: 36px;
	border-radius: 50%;
	border: 2px solid transparent;
	padding: 0;
	box-shadow: 0 1px 2px rgba(0,0,0,0.15);
	transition: transform 0.12s ease, border-color 0.15s ease;
}
.gravpro-swatch-material:active { transform: scale(0.93); }
.gravpro-swatch-material.active {
	border-color: var(--brass);
	box-shadow: 0 0 0 2px var(--panel), 0 0 0 3px var(--brass);
}

.gravpro-swatch-item span {
	font-size: 10px;
	color: var(--muted);
	text-align: center;
	line-height: 1.25;
}

.gravpro-field { display: block; margin-bottom: 12px; }
.gravpro-field:last-child { margin-bottom: 0; }
.gravpro-field > span {
	display: block;
	font-size: 11.5px;
	color: var(--muted);
	margin-bottom: 6px;
}
.gravpro-app textarea,
.gravpro-app select {
	width: 100%;
	border: 1px solid var(--line);
	border-radius: 3px;
	padding: 8px;
	font-size: 13px;
	font-family: inherit;
	background: #fff;
}
.gravpro-app input[type="range"] { width: 100%; }

.gravpro-hint {
	font-size: 12px;
	color: var(--muted);
	line-height: 1.5;
	margin: 0;
}

.gravpro-layers { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.gravpro-layer-row {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 7px 8px;
	border-radius: 3px;
	border: 1px solid transparent;
	font-size: 12.5px;
	cursor: pointer;
}
.gravpro-layer-row:hover { background: #F1ECE0; }
.gravpro-layer-row.active { border-color: var(--brass); background: #F4EADB; }
.gravpro-layer-icon { width: 18px; text-align: center; color: var(--muted); font-size: 11px; }
.gravpro-layer-label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gravpro-icon-btn { background: none; border: none; color: var(--muted); font-size: 13px; padding: 2px 4px; }
.gravpro-icon-btn:hover { color: var(--danger); }

.gravpro-stage {
	flex: 1;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 28px;
	background: radial-gradient(ellipse at center, #F2EEE3 0%, var(--canvas) 72%);
}

.gravpro-plate-shadow {
	filter: drop-shadow(0 14px 22px rgba(28,27,25,0.20)) drop-shadow(0 2px 4px rgba(28,27,25,0.12));
	width: 100%;
	max-width: 460px;
}

.gravpro-plate-svg { display: block; width: 100%; height: auto; touch-action: none; }
.gravpro-draggable { cursor: grab; }
.gravpro-draggable:active { cursor: grabbing; }

.gravpro-sheen {
	mix-blend-mode: overlay;
	animation: gravproShimmer 4s ease-in-out infinite;
}
.gravpro-sheen-brass { animation-duration: 3s; }
.gravpro-brush-overlay { mix-blend-mode: multiply; }

@keyframes gravproShimmer {
	0%, 100% { opacity: 0.55; }
	50% { opacity: 1; }
}

.gravpro-price-bar {
	padding: 14px 22px;
	background: linear-gradient(135deg, var(--brass), var(--brass-dark));
	color: #fff;
	display: flex;
	justify-content: space-between;
	align-items: center;
	font-size: 13px;
}
.gravpro-price-bar strong { font-size: 19px; font-weight: 700; }
.gravpro-price-bar .gravpro-hint { color: rgba(255,255,255,0.85); }

@media (prefers-reduced-motion: reduce) {
	.gravpro-sheen { animation: none; opacity: 0.8; }
}

@media (max-width: 880px) {
	.gravpro-stage { padding: 20px 14px; min-height: 180px; }
	.gravpro-topbar { padding: 14px 16px; }
}