/* ==========================================================================
   BN Quiz — auto-evaluaciones (D-01 a D-06)
   ========================================================================== */
.bn-demo-page { padding-bottom: var(--space-12); }

.bn-demo-hero {
	background: linear-gradient(180deg, var(--bg-deep, #0a0a0a) 0%, var(--bg-elevated, #14181f) 100%);
	border-bottom: 1px solid var(--border, #1f2a25);
	padding: var(--space-10) 0 var(--space-8);
}
.bn-demo-hero__top {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-4);
	margin-bottom: var(--space-6);
}
.bn-demo-hero__back {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	color: var(--text-muted);
	font-size: 13px;
	text-decoration: none;
	transition: color .2s;
}
.bn-demo-hero__back:hover { color: var(--em-400); }
.bn-demo-hero__head {
	display: flex;
	gap: var(--space-5);
	align-items: flex-start;
}
.bn-demo-hero__icon {
	width: 64px;
	height: 64px;
	border-radius: 16px;
	background: rgba(4, 120, 87, 0.15);
	color: var(--em-400);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
}
.bn-demo-hero__title {
	margin: 0 0 8px 0;
	font-size: clamp(24px, 3vw, 36px);
	color: var(--text);
	font-weight: 700;
	line-height: 1.15;
}
.bn-demo-hero__lead {
	color: var(--text-muted);
	font-size: 16px;
	margin: 0 0 var(--space-3) 0;
	max-width: 740px;
}
.bn-demo-hero__meta {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	color: var(--em-400);
	font-family: var(--font-mono);
	font-size: 12px;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	margin: 0;
}

/* ── Runner box ── */
.bn-demo-runner { padding-top: var(--space-10); }
.bn-quiz {
	max-width: 760px;
	margin: 0 auto;
	background: var(--bg-elevated, #14181f);
	border: 1px solid var(--border, #1f2a25);
	border-radius: 16px;
	padding: var(--space-8);
	position: relative;
	overflow: hidden;
}
.bn-quiz::before {
	content: '';
	position: absolute;
	top: 0; left: 0; right: 0;
	height: 3px;
	background: linear-gradient(90deg, var(--em-700), var(--em-400), var(--em-700));
}
.bn-quiz__screen { display: none; animation: bn-fade-up .4s ease-out; }
.bn-quiz__screen.is-active { display: block; }
@keyframes bn-fade-up {
	from { opacity: 0; transform: translateY(10px); }
	to   { opacity: 1; transform: translateY(0); }
}
.bn-quiz h2 {
	margin: 0 0 var(--space-3) 0;
	color: var(--text);
	font-weight: 700;
}
.bn-quiz__intro-text {
	color: var(--text-muted);
	font-size: 16px;
	line-height: 1.6;
	margin-bottom: var(--space-6);
}

/* ── Progress ── */
.bn-quiz__progress {
	display: flex;
	flex-direction: column;
	gap: 6px;
	margin-bottom: var(--space-5);
}
.bn-quiz__progress-text {
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--em-400);
	text-transform: uppercase;
	letter-spacing: 0.18em;
}
.bn-quiz__progress-bar {
	height: 4px;
	background: rgba(4, 120, 87, 0.15);
	border-radius: 2px;
	overflow: hidden;
}
.bn-quiz__progress-fill {
	height: 100%;
	background: linear-gradient(90deg, var(--em-700), var(--em-400));
	width: 0;
	transition: width .35s cubic-bezier(.34, 1.2, .64, 1);
}

/* ── Question ── */
.bn-quiz__question {
	font-size: clamp(18px, 2.4vw, 24px);
	line-height: 1.35;
	margin-bottom: var(--space-2);
}
.bn-quiz__hint {
	color: var(--text-muted);
	font-size: 14px;
	margin: 0 0 var(--space-5) 0;
	font-style: italic;
}
.bn-quiz__options {
	display: flex;
	flex-direction: column;
	gap: 10px;
	margin-bottom: var(--space-5);
}
.bn-quiz-opt {
	display: flex;
	align-items: center;
	gap: 14px;
	padding: 16px 20px;
	background: var(--bg-deep, #0a0a0a);
	border: 1px solid var(--border, #1f2a25);
	border-radius: 12px;
	color: var(--text);
	font-size: 15px;
	text-align: left;
	cursor: pointer;
	transition: all .2s ease-out;
	width: 100%;
}
.bn-quiz-opt:hover {
	border-color: var(--em-500);
	background: rgba(4, 120, 87, 0.06);
	transform: translateX(2px);
}
.bn-quiz-opt.is-selected {
	border-color: var(--em-400);
	background: rgba(4, 120, 87, 0.12);
}
.bn-quiz-opt__bullet {
	width: 18px; height: 18px;
	border-radius: 50%;
	border: 2px solid var(--border, #2d3a35);
	flex-shrink: 0;
	transition: all .2s;
	position: relative;
}
.bn-quiz-opt:hover .bn-quiz-opt__bullet { border-color: var(--em-400); }
.bn-quiz-opt.is-selected .bn-quiz-opt__bullet {
	border-color: var(--em-400);
	background: var(--em-400);
}
.bn-quiz-opt.is-selected .bn-quiz-opt__bullet::after {
	content: '';
	position: absolute;
	inset: 3px;
	border-radius: 50%;
	background: var(--bg-deep, #0a0a0a);
}

.bn-quiz__nav {
	display: flex;
	justify-content: flex-start;
}

/* ── Capture form ── */
.bn-quiz__form {
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
	margin-top: var(--space-5);
}
.bn-form-row {
	display: flex;
	flex-direction: column;
	gap: 6px;
}
.bn-form-row label {
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--text-muted);
	text-transform: uppercase;
	letter-spacing: 0.12em;
}
.bn-form-row input {
	padding: 12px 14px;
	background: var(--bg-deep, #0a0a0a);
	border: 1px solid var(--border, #1f2a25);
	border-radius: 10px;
	color: var(--text);
	font-size: 15px;
	font-family: var(--font-body);
}
.bn-form-row input:focus {
	outline: none;
	border-color: var(--em-400);
	box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.12);
}
.bn-quiz__privacy {
	font-size: 11px;
	color: var(--text-dim);
	margin-top: var(--space-2);
}
.bn-quiz__privacy a { color: var(--em-400); }

/* ── Result ── */
.bn-quiz__score {
	display: flex;
	gap: var(--space-6);
	align-items: center;
	padding: var(--space-5);
	background: var(--bg-deep, #0a0a0a);
	border-radius: 14px;
	margin-bottom: var(--space-6);
}
.bn-quiz__score-ring {
	width: 130px; height: 130px;
	border-radius: 50%;
	border: 6px solid var(--em-400);
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	background: var(--bg-elevated, #14181f);
	position: relative;
}
.bn-quiz__score-ring.is-low  { border-color: #ef4444; }
.bn-quiz__score-ring.is-mid  { border-color: #f59e0b; }
.bn-quiz__score-ring.is-high { border-color: var(--em-400); }
.bn-quiz__score-num {
	font-family: var(--font-mono);
	font-size: 44px;
	font-weight: 700;
	color: var(--text);
	line-height: 1;
}
.bn-quiz__score-label {
	font-family: var(--font-mono);
	font-size: 12px;
	color: var(--text-muted);
}
.bn-quiz__score-text h2 { margin: 0 0 6px 0; font-size: 22px; }
.bn-quiz__score-text p { color: var(--text-muted); margin: 0; line-height: 1.55; }

.bn-quiz__recommendations h3 {
	font-size: 14px;
	color: var(--em-400);
	font-family: var(--font-mono);
	text-transform: uppercase;
	letter-spacing: 0.12em;
	margin: 0 0 var(--space-4) 0;
}
.bn-quiz__recos-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: var(--space-3);
	margin-bottom: var(--space-6);
}
.bn-reco-card {
	display: flex;
	flex-direction: column;
	gap: 8px;
	padding: var(--space-4);
	background: var(--bg-deep, #0a0a0a);
	border: 1px solid var(--border, #1f2a25);
	border-radius: 12px;
	color: var(--text);
	text-decoration: none;
	transition: all .2s;
}
.bn-reco-card:hover {
	border-color: var(--em-400);
	transform: translateY(-2px);
	box-shadow: 0 8px 24px rgba(4, 120, 87, 0.12);
}
.bn-reco-card__codigo {
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--em-400);
	text-transform: uppercase;
	letter-spacing: 0.12em;
}
.bn-reco-card h4 { margin: 0; font-size: 15px; line-height: 1.3; }
.bn-reco-card p {
	margin: 0;
	color: var(--text-muted);
	font-size: 13px;
	line-height: 1.5;
	flex: 1;
}
.bn-reco-card__link {
	color: var(--em-400);
	font-size: 12px;
	font-weight: 600;
	margin-top: 4px;
}

.bn-quiz__cta {
	display: flex;
	gap: var(--space-3);
	flex-wrap: wrap;
	padding-top: var(--space-5);
	border-top: 1px solid var(--border, #1f2a25);
}

/* Placeholder runners (verificación, calculadora, descargable) */
.bn-runner-placeholder {
	max-width: 560px;
	margin: 0 auto;
	text-align: center;
	padding: var(--space-8) var(--space-6);
	background: var(--bg-elevated, #14181f);
	border: 1px solid var(--border, #1f2a25);
	border-radius: 16px;
}
.bn-runner-placeholder h2 { margin: 0 0 var(--space-3); }
.bn-runner-placeholder p {
	color: var(--text-muted);
	margin-bottom: var(--space-5);
}
.bn-runner-notify {
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
	justify-content: center;
	max-width: 460px;
	margin: 0 auto;
}
.bn-runner-notify input {
	flex: 1;
	min-width: 180px;
	padding: 12px 14px;
	background: var(--bg-deep, #0a0a0a);
	border: 1px solid var(--border, #1f2a25);
	border-radius: 10px;
	color: var(--text);
}

/* Mobile */
@media (max-width: 640px) {
	.bn-quiz { padding: var(--space-5); }
	.bn-quiz__score { flex-direction: column; text-align: center; }
	.bn-demo-hero__head { flex-direction: column; }
	.bn-demo-hero__icon { width: 56px; height: 56px; }
}

/* ── Demo Tools (D-07 a D-12 + D-24) ── */
.bn-demo-runner__title { margin: 0 0 8px 0; font-size: 22px; }
.bn-demo-runner__sub { color: var(--text-muted); margin-bottom: var(--space-5); }

.bn-tool-form {
	display: flex;
	flex-direction: column;
	gap: 12px;
	margin-bottom: var(--space-5);
}
.bn-tool-form input, .bn-tool-form textarea {
	width: 100%;
	padding: 14px 16px;
	background: var(--bg-deep, #0a0a0a);
	border: 1px solid var(--border, #1f2a25);
	border-radius: 10px;
	color: var(--text);
	font-size: 15px;
	font-family: var(--font-body);
}
.bn-tool-form textarea { font-family: var(--font-mono); resize: vertical; }
.bn-tool-form input:focus, .bn-tool-form textarea:focus {
	outline: none;
	border-color: var(--em-400);
	box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.12);
}

.bn-tool-result {
	margin-top: var(--space-5);
	padding: var(--space-5);
	background: var(--bg-deep, #0a0a0a);
	border-radius: 12px;
	border: 1px solid var(--border, #1f2a25);
}
.bn-tool-error {
	color: #ef4444;
	padding: 16px;
	background: rgba(239, 68, 68, 0.08);
	border-radius: 8px;
}
.bn-tool-score {
	display: inline-flex;
	flex-direction: column;
	align-items: center;
	padding: 16px 24px;
	border-radius: 12px;
	background: var(--bg-elevated, #14181f);
	margin-bottom: var(--space-4);
	border: 2px solid var(--em-400);
}
.bn-tool-score.is-low  { border-color: #ef4444; }
.bn-tool-score.is-mid  { border-color: #f59e0b; }
.bn-tool-score.is-high { border-color: var(--em-400); }
.bn-tool-score__num {
	font-size: 36px;
	font-weight: 700;
	font-family: var(--font-mono);
}
.bn-tool-score__label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.12em; }

.bn-tool-checks {
	list-style: none;
	margin: 0 0 var(--space-4) 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 6px;
}
.bn-tool-checks li {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	padding: 10px 12px;
	background: var(--bg-elevated, #14181f);
	border-radius: 8px;
	font-size: 13px;
	line-height: 1.5;
}
.bn-tool-check__icon {
	flex-shrink: 0;
	width: 22px; height: 22px;
	border-radius: 50%;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-weight: 700;
	font-size: 12px;
}
.bn-tool-checks li.is-pass .bn-tool-check__icon { background: rgba(16, 185, 129, 0.18); color: var(--em-400); }
.bn-tool-checks li.is-fail .bn-tool-check__icon { background: rgba(239, 68, 68, 0.15); color: #ef4444; }
.bn-tool-result pre {
	background: var(--bg-elevated, #14181f);
	padding: 12px;
	border-radius: 8px;
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--text-muted);
	overflow-x: auto;
	max-height: 200px;
}
.bn-tool-cta {
	margin-top: var(--space-4);
	padding-top: var(--space-4);
	border-top: 1px solid var(--border, #1f2a25);
}