:root {
	--bg: #0b1220;
	--panel: #111a2e;
	--text: #e7eefc;
	--muted: #a8b3cc;
	--accent: #7aa2ff;
	--danger: #ff6b6b;
	--border: rgba(231, 238, 252, 0.14);
	--surface: #0f1830;
	--cell: #0f1830;
	--cell-hover: #152248;
}

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

body {
	font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans,
		sans-serif;
	background:
		radial-gradient(1000px 600px at 20% 10%, rgba(122, 162, 255, 0.22), transparent),
		radial-gradient(900px 600px at 90% 10%, rgba(255, 107, 107, 0.12), transparent),
		var(--bg);
	color: var(--text);
	min-height: 100vh;
	display: grid;
	place-items: center;
	padding: 24px;
}

/* ─── Header ─── */

.header-content {
	display: flex;
	align-items: center;
	gap: 12px;
}

.back-button {
	flex-shrink: 0;
	width: 36px;
	height: 36px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 8px;
	color: var(--muted);
	text-decoration: none;
	transition: all 0.2s ease;
}

.back-button:hover {
	background: var(--surface);
	border-color: var(--accent);
	color: var(--accent);
	transform: translateX(-2px);
}

.back-button:active {
	transform: translateX(-2px) scale(0.95);
}

.header h1 {
	margin: 0;
	font-size: 28px;
	letter-spacing: 0.4px;
	line-height: 1;
}

.subtitle {
	margin: 8px 0 0;
	color: var(--muted);
	font-size: 14px;
}

/* ─── Panel ─── */

.panel {
	background: var(--panel);
	border: 1px solid var(--border);
	padding: 16px;
	border-radius: 12px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
}

.status {
	font-weight: 600;
}

/* ─── Botones ─── */

.btn {
	appearance: none;
	border: 1px solid var(--border);
	background: transparent;
	color: var(--text);
	padding: 10px 16px;
	border-radius: 10px;
	cursor: pointer;
	font-size: 14px;
	text-decoration: none;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	white-space: nowrap;
}

.btn:hover {
	border-color: rgba(122, 162, 255, 0.6);
}

.btn:active {
	transform: translateY(1px);
}

.btn:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

.btn.secondary {
	color: var(--muted);
}

/* ─── Footer ─── */

.footer {
	color: var(--muted);
	text-align: center;
	font-size: 13px;
	margin-top: 8px;
}