/* Guía Spring Boot 3 — base mobile-first. */
:root {
  --bg-primary: #0b1220;
  --bg-secondary: #111b2e;
  --bg-card: rgba(17, 27, 46, .82);
  --bg-code: #07101d;
  --text-primary: #edf5ff;
  --text-secondary: #a9b8cf;
  --text-muted: #71819a;
  --accent: #00d4aa;
  --accent-soft: rgba(0, 212, 170, .14);
  --purple: #a78bfa;
  --yellow: #fbbf24;
  --red: #fb7185;
  --green: #4ade80;
  --border: rgba(169, 184, 207, .18);
  --border-accent: rgba(0, 212, 170, .38);
  --sidebar-width: 292px;
  --header-height: 64px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow: 0 12px 32px rgba(0, 0, 0, .24);
  --mono: 'JetBrains Mono', Consolas, monospace;
  --sans: 'Inter', system-ui, sans-serif;
  --display: 'Outfit', var(--sans);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg-primary); color: var(--text-primary); font-family: var(--sans); line-height: 1.65; overflow-x: hidden; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: var(--accent); }
code, .code-file-path, .setup-verification, .crud-route-grid code { font-family: var(--mono); }
code { color: #b7f7e8; font-size: .92em; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 8px; top: -60px; z-index: 500; padding: 8px 12px; background: var(--accent); color: #03251f; border-radius: var(--radius-sm); font-weight: 600; }
.skip-link:focus { top: 8px; }
[hidden] { display: none !important; }

.particles { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.particle { position: absolute; top: 100%; width: 3px; height: 3px; background: var(--accent); border-radius: 50%; opacity: .26; animation: float-up linear infinite; }
@keyframes float-up { to { transform: translateY(-110vh); opacity: 0; } }

.app-layout { min-height: 100vh; }
.sidebar { position: fixed; inset: 0 auto 0 0; z-index: 200; width: min(var(--sidebar-width), 88vw); background: rgba(8, 15, 27, .98); border-right: 1px solid var(--border); transform: translateX(-102%); transition: transform .24s ease; overflow-y: auto; }
.sidebar.open { transform: translateX(0); }
.sidebar-backdrop { position: fixed; inset: 0; z-index: 150; background: rgba(0, 0, 0, .62); opacity: 0; pointer-events: none; transition: opacity .24s ease; }
.sidebar.open + .sidebar-backdrop { opacity: 1; pointer-events: auto; }
.sidebar-header { padding: 22px 18px 16px; border-bottom: 1px solid var(--border); background: linear-gradient(135deg, rgba(0,212,170,.13), rgba(167,139,250,.08)); }
.btn-close-sidebar { display: block; margin: 0 0 10px auto; border: 0; background: transparent; color: var(--text-secondary); font-size: 1.7rem; cursor: pointer; }
.sidebar-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text-primary); }
.logo-icon { display: grid; width: 40px; height: 40px; place-items: center; border-radius: 12px; background: linear-gradient(135deg, var(--accent), var(--purple)); font-size: 1.25rem; }
.logo-text { font-family: var(--display); font-size: 1.25rem; font-weight: 700; }
.sidebar-subtitle { margin: 10px 0 0; color: var(--text-secondary); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.progress-overview { padding: 14px 18px; }
.user-stats, .progress-label, .header-actions, .sim-footer, .stepper-controls, .module-meta, .setup-verification { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.user-stats { justify-content: space-between; margin-bottom: 12px; }
.stat-badge { display: grid; gap: 1px; color: var(--accent); font-weight: 600; font-size: .82rem; }
.stat-badge small { color: var(--text-muted); font-size: .7rem; font-weight: 400; }
.xp-badge, .code-lang-badge { padding: 3px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: .72rem; }
.progress-label { justify-content: space-between; color: var(--text-muted); font-size: .7rem; margin-top: 8px; }
.progress-bar-container { height: 5px; margin-top: 5px; overflow: hidden; background: rgba(255,255,255,.08); border-radius: 99px; }
.progress-bar-fill { width: 0; height: 100%; background: linear-gradient(90deg, var(--accent), var(--purple)); transition: width .35s ease; }
.module-nav { padding: 8px 10px 24px; }
.module-section-label { margin: 12px 8px 6px; color: var(--text-muted); font-size: .67rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.nav-divider { height: 1px; margin: 10px 8px; background: var(--border); }
.nav-item { display: flex; align-items: center; gap: 9px; min-height: 39px; padding: 8px 10px; border-radius: 8px; color: var(--text-secondary); text-decoration: none; font-size: .81rem; }
.nav-item:hover, .nav-item.active { background: var(--accent-soft); color: var(--text-primary); }
.nav-item.active { box-shadow: inset 3px 0 var(--accent); }
.nav-icon { width: 22px; text-align: center; }
.sidebar-search { display: block; margin: 8px; }
.sidebar-search input { width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: rgba(255,255,255,.05); color: var(--text-primary); }

.main-content { min-width: 0; }
.top-header { position: sticky; top: 0; z-index: 100; display: flex; align-items: center; gap: 10px; min-height: var(--header-height); padding: 10px 14px; background: rgba(11,18,32,.92); border-bottom: 1px solid var(--border); backdrop-filter: blur(12px); }
.sidebar-toggle { padding: 7px 10px; border: 1px solid var(--border); border-radius: 8px; background: transparent; color: var(--text-primary); cursor: pointer; }
.header-breadcrumb { display: flex; min-width: 0; gap: 7px; color: var(--text-muted); font-size: .75rem; }
.header-breadcrumb .current { overflow: hidden; color: var(--text-primary); text-overflow: ellipsis; white-space: nowrap; }
.header-actions { margin-left: auto; justify-content: flex-end; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 36px; padding: 7px 12px; border: 1px solid transparent; border-radius: 8px; color: var(--text-primary); cursor: pointer; text-decoration: none; font-size: .78rem; font-weight: 500; transition: background .2s ease, border-color .2s ease, transform .2s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #04251f; }
.btn-primary:hover { background: #2de0bb; }
.btn-ghost { border-color: var(--border); background: rgba(255,255,255,.04); color: var(--text-primary); }
.btn-ghost:hover { border-color: var(--border-accent); background: var(--accent-soft); }
.btn-large { min-height: 44px; padding: 10px 16px; }
.btn-header { min-height: 32px; padding: 5px 9px; }

.module-page { display: none; }
.module-page.active { display: block; }
.welcome-hero { display: grid; min-height: 430px; place-items: center; padding: 48px 18px; background: radial-gradient(circle at 50% 0, rgba(0,212,170,.17), transparent 55%); text-align: center; }
.welcome-content { width: min(850px, 100%); }
.welcome-badge, .module-number { color: var(--accent); font-size: .76rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--display); line-height: 1.16; }
h1 { margin: 12px 0 16px; font-size: clamp(2.1rem, 9vw, 4.2rem); }
h2 { margin: 0 0 10px; font-size: clamp(1.25rem, 4vw, 1.8rem); }
h3 { margin: 0 0 7px; font-size: 1.05rem; }
p { margin: 0 0 12px; color: var(--text-secondary); }
.welcome-content p:not(.welcome-badge) { max-width: 720px; margin-right: auto; margin-left: auto; font-size: .98rem; }
.welcome-cta { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.welcome-card, .content-container { width: min(1120px, calc(100% - 24px)); margin: 14px auto; }
.welcome-card { padding: 18px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--bg-card); box-shadow: var(--shadow); }
.content-container { width: min(100%, 1000px); padding: 0 0 24px; }
.section-heading { display: flex; align-items: flex-start; gap: 11px; margin-bottom: 18px; }
.section-heading > div { min-width: 0; }
.section-heading code { overflow-wrap: anywhere; }
.section-heading p { margin-bottom: 0; font-size: .87rem; }
.title-icon { flex: 0 0 auto; font-size: 1.45rem; }
.mental-model { display: flex; align-items: stretch; gap: 7px; overflow-x: auto; padding: 10px 0 8px; }
.mental-node { min-width: 132px; padding: 11px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.035); }
.mental-node span { display: inline-grid; width: 22px; height: 22px; margin-bottom: 7px; place-items: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-size: .7rem; }
.mental-node strong, .mental-node small { display: block; }
.mental-node strong { font-size: .82rem; }
.mental-node small { color: var(--text-muted); font-size: .68rem; }
.mental-arrow { display: grid; min-width: 20px; place-items: center; color: var(--accent); }
.diagram-caption { color: var(--text-muted); font-size: .76rem; }
.setup-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
.setup-step { display: flex; min-width: 0; flex-direction: column; padding: 16px; border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: var(--radius-md); background: rgba(255,255,255,.035); }
.setup-step--run { border-color: var(--border-accent); border-left-color: var(--purple); background: linear-gradient(135deg, rgba(0,212,170,.055), rgba(167,139,250,.055)); }
.setup-step .step-number, .construction-steps .step-number, .workflow-step .step-number { display: inline-grid; width: 28px; height: 28px; margin-bottom: 8px; place-items: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 600; font-size: .78rem; }
.setup-step h3 { margin-bottom: 10px; }
.setup-step p { font-size: .8rem; }
.setup-step > .btn { width: 100%; margin-top: auto; }
.setup-requirements { display: grid; gap: 10px; margin: 0 0 14px; padding: 0; list-style: none; }
.setup-requirements li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 10px; align-items: start; color: var(--text-secondary); font-size: .8rem; }
.setup-requirements li::before { content: '✓'; color: var(--accent); font-weight: 700; grid-row: 1 / -1; font-size: 1.1em; transform: translateY(1px); }
.setup-requirements li strong { color: var(--text-primary); grid-column: 2; }
.setup-requirements li span { grid-column: 2; color: var(--text-muted); }
.setup-note { margin-top: auto; color: var(--text-muted); }
.setup-step--run [data-code-module] { display: grid; min-width: 0; gap: 10px; }
.setup-step--run .code-window { min-width: 0; margin: 0; }
.setup-step:not(.setup-step--run) .code-window { margin-top: 10px; }
.setup-verification { display: grid; grid-template-columns: 1fr; gap: 10px; min-width: 0; margin-top: 18px; padding: 14px 0 0; border-top: 1px solid var(--border); color: var(--text-secondary); font-size: .73rem; }
.setup-verification > strong { color: var(--accent); }
.setup-verification-links { display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; min-width: 0; }
.setup-verification-link { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 8px; align-items: start; min-width: 0; padding: 9px 10px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: rgba(255,255,255,.035); color: var(--text-secondary); text-decoration: none; }
.setup-verification-link:hover { border-color: var(--border-accent); background: var(--accent-soft); }
.setup-verification-link span { color: var(--text-primary); font-size: .72rem; font-weight: 600; }
.setup-verification-link code { min-width: 0; overflow-wrap: anywhere; color: var(--accent); font-size: .68rem; }
.setup-curls { min-width: 0; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border); }
.setup-curls h3 { color: var(--text-primary); }
.setup-curls [data-code-module] { min-width: 0; }
.setup-curls .code-window { margin-bottom: 0; }
.faq-item { padding: 11px 0; border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: 0; }
.faq-item summary { cursor: pointer; color: var(--text-primary); font-size: .84rem; font-weight: 500; }
.faq-item p { margin: 8px 0 0; font-size: .8rem; }

.tabs-container { min-width: 0; }
.tabs-header { display: flex; gap: 6px; overflow-x: auto; border-bottom: 1px solid var(--border); }
.tab-btn { flex: 0 0 auto; padding: 10px 12px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--text-secondary); cursor: pointer; font-size: .78rem; }
.tab-btn.active { border-color: var(--accent); color: var(--text-primary); }
.tab-panel { display: none; padding-top: 16px; }
.tab-panel.active { display: block; }
.workflow-list { display: grid; gap: 10px; }
.workflow-step { display: grid; grid-template-columns: 34px 1fr; gap: 9px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.workflow-step p { margin: 3px 0; font-size: .77rem; }
.verification { color: var(--green) !important; }

.module-hero { width: min(1120px, calc(100% - 24px)); margin: 18px auto 16px; padding: 28px 18px; border: 1px solid var(--border-accent); border-radius: var(--radius-lg); background: linear-gradient(135deg, rgba(0,212,170,.13), rgba(167,139,250,.08)); }
.module-hero h1 { margin: 8px 0 10px; font-size: clamp(1.9rem, 7vw, 3.4rem); }
.hero-description { max-width: 800px; font-size: .95rem; }
.module-meta { margin-top: 18px; }
.module-meta span { padding: 5px 9px; border: 1px solid var(--border); border-radius: 999px; color: var(--text-secondary); font-size: .7rem; }
.concept-intro, .learning-box, .route-checklist, .analogy-table, .mental-contract, .comparison-grid article, .ai-rules { margin: 14px 0; padding: 16px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.025); }
.concept-intro h2, .learning-box h2, .route-checklist h2, .mental-contract h2 { font-size: 1.1rem; }
.concept-intro p, .learning-box li, .comparison-grid p, .ai-rules li { font-size: .84rem; }
.learning-box { border-color: rgba(0,212,170,.34); }
.learning-box ul, .ai-rules ul { margin: 0; padding-left: 19px; }
.mental-contract span { color: var(--text-muted); font-size: .78rem; }
.folder-tree { display: grid; gap: 4px; font-family: var(--mono); font-size: .72rem; }
.tree-indent { padding-left: 17px; }
.tree-indent span { margin-left: 6px; font-family: var(--sans); }
.concept-map { position: relative; display: grid; min-height: 330px; place-items: center; margin: 18px 0; }
.concept-map::before, .concept-map::after { position: absolute; content: ''; background: var(--border-accent); }
.concept-map::before { width: 1px; height: 72%; }
.concept-map::after { width: 72%; height: 1px; }
.concept-map-core, .concept-map-branch { position: relative; z-index: 1; display: grid; place-items: center; gap: 3px; width: 132px; min-height: 74px; padding: 9px; border: 1px solid var(--border-accent); border-radius: var(--radius-md); background: var(--bg-secondary); text-align: center; }
.concept-map-core { grid-area: 1 / 1; width: 156px; min-height: 92px; background: var(--accent-soft); }
.concept-map-core span { font-size: 1.5rem; }
.concept-map-core small, .concept-map-branch small { color: var(--text-muted); font-size: .67rem; }
.branch-top { grid-area: 1 / 1; transform: translateY(-122px); }
.branch-right { grid-area: 1 / 1; transform: translateX(143px); }
.branch-bottom { grid-area: 1 / 1; transform: translateY(122px); }
.branch-left { grid-area: 1 / 1; transform: translateX(-143px); }

.layer-diagram { display: grid; gap: 5px; max-width: 520px; margin: 16px auto; text-align: center; }
.layer-row { padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.035); }
.layer-row span, .layer-row small { display: block; }
.layer-row span { font-weight: 600; }
.layer-row small { color: var(--text-muted); font-size: .72rem; }
.layer-controller { border-color: rgba(0,212,170,.55); }
.layer-service { border-color: rgba(167,139,250,.55); }
.layer-connector { color: var(--accent); font-family: var(--mono); font-size: .72rem; }
.table-responsive { overflow-x: auto; }
.table { width: 100%; min-width: 620px; border-collapse: collapse; font-size: .77rem; }
.table th, .table td { padding: 9px 8px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.table th { color: var(--accent); font-weight: 500; }
.check-grid, .crud-route-grid, .error-map, .comparison-grid, .responsibility-split { display: grid; gap: 9px; }
.check-grid > div, .crud-route-grid > div, .error-map article, .comparison-grid article, .responsibility-split article { padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.03); }
.check-grid b, .check-grid span, .crud-route-grid span { display: block; }
.check-grid span, .crud-route-grid span, .error-map p { color: var(--text-muted); font-size: .72rem; }
.bean-lifecycle, .mapping-visual, .dto-visual, .validation-flow, .exception-flow, .relation-visual, .security-sequence, .sdlc-map, .ai-loop, .testing-pyramid { display: flex; align-items: center; gap: 8px; overflow-x: auto; padding: 10px 0; }
.bean-lifecycle > div, .sdlc-map > div, .ai-loop > div, .mapping-side, .dto-column, .relation-visual > div { flex: 1 0 120px; min-height: 72px; padding: 10px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.035); text-align: center; }
.bean-lifecycle b, .bean-lifecycle span, .sdlc-map b, .sdlc-map span, .ai-loop b, .ai-loop span, .mapping-side strong, .mapping-side small, .dto-column h3, .dto-column p { display: block; }
.bean-lifecycle span, .sdlc-map span, .ai-loop span, .mapping-side small, .dto-column p { color: var(--text-muted); font-size: .66rem; }
.bean-lifecycle i, .validation-flow i, .exception-flow b, .security-sequence b, .sdlc-map i, .ai-loop i { flex: 0 0 auto; color: var(--accent); font-style: normal; }
.mapping-arrow, .dto-transform { flex: 0 0 auto; color: var(--accent); text-align: center; font-family: var(--mono); font-size: .7rem; }
.mapping-side span { display: block; margin-bottom: 5px; font-size: 1.3rem; }
.dto-safe { border-color: rgba(74,222,128,.45) !important; }
.validation-flow > div, .exception-flow > div, .security-sequence > span { flex: 1 0 130px; padding: 9px; border-radius: var(--radius-sm); background: var(--accent-soft); text-align: center; font-size: .74rem; }
.validation-flow b, .validation-flow span, .exception-flow span, .exception-flow small { display: block; }
.validation-flow span, .exception-flow small { color: var(--text-muted); font-size: .66rem; }
.numbered-list { padding-left: 22px; color: var(--text-secondary); font-size: .83rem; }
.numbered-list li { margin-bottom: 6px; }
.responsibility-split article { display: grid; gap: 5px; }
.responsibility-icon { font-size: 1.4rem; }
.transaction-visual { padding: 14px; border: 1px dashed var(--border-accent); border-radius: var(--radius-md); }
.tx-path { display: flex; align-items: center; gap: 8px; overflow-x: auto; color: var(--text-secondary); font-family: var(--mono); font-size: .71rem; }
.tx-commit { color: var(--green); }
.crud-contract { margin: 12px 0; }
.crud-route-grid b { display: inline-block; width: 52px; color: var(--accent); }
.crud-route-grid code { font-size: .7rem; }
.construction-steps { display: grid; gap: 10px; margin: 18px 0; padding: 0; list-style: none; counter-reset: steps; }
.construction-steps > li { display: grid; grid-template-columns: 34px 1fr; gap: 9px; padding: 13px 0; border-bottom: 1px solid var(--border); }
.construction-steps h3 { margin-top: 0; }
.construction-steps p { font-size: .81rem; }
.construction-steps .verification { margin-bottom: 0; }
.error-map article strong { display: block; color: var(--red); font-family: var(--mono); font-size: 1.2rem; }
.error-map article h3 { margin-top: 4px; }
.relation-visual > div { flex-basis: 130px; }
.relation-visual small { display: block; color: var(--text-muted); font-size: .68rem; }
.relation-join { border-color: rgba(167,139,250,.55) !important; }
.security-sequence { justify-content: center; }
.security-sequence span { flex: 0 0 auto; }
.testing-pyramid { flex-direction: column; align-items: stretch; max-width: 540px; margin: 14px auto; }
.test-level { padding: 12px; text-align: center; border: 1px solid var(--border); border-radius: var(--radius-md); }
.test-level span { display: block; color: var(--text-muted); font-size: .72rem; }
.test-unit { width: 55%; align-self: center; border-color: var(--accent); }
.test-web { width: 75%; align-self: center; border-color: var(--purple); }
.test-integration { width: 100%; border-color: var(--yellow); }
.ai-loop > div { flex-basis: 135px; }
.ai-rules { border-color: rgba(167,139,250,.45); }
.module-nav-footer { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; margin-top: 24px; padding-top: 14px; border-top: 1px solid var(--border); }

.code-window {
  margin: 20px 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  background: var(--bg-code);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.05);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.code-window:hover {
  border-color: rgba(0, 212, 170, 0.35);
  box-shadow: 0 12px 40px rgba(0, 212, 170, 0.08), 0 8px 30px rgba(0, 0, 0, 0.5);
}
.code-window-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(15, 25, 42, 0.6);
  backdrop-filter: blur(8px);
}
.code-window-controls {
  display: flex;
  gap: 6px;
  align-items: center;
  flex: 0 0 auto;
}
.control-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}
.control-dot.close { background: #ff5f56; }
.control-dot.minimize { background: #ffbd2e; }
.control-dot.maximize { background: #27c93f; }
.code-window-title {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  min-width: 0;
  gap: 8px;
  overflow: hidden;
  font-size: 0.72rem;
  color: var(--text-secondary);
}
.code-file-path {
  overflow: hidden;
  color: #e2e8f0;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.code-lang-badge {
  flex: 0 0 auto;
  color: #0b1220;
  background: linear-gradient(135deg, var(--accent), #10b981);
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 2px 6px rgba(0, 212, 170, 0.15);
}
.btn-copy-code {
  flex: 0 0 auto;
  min-height: 28px;
  padding: 4px 9px;
  font-size: 0.68rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  border-radius: 6px;
  transition: all 0.2s ease;
}
.btn-copy-code:hover {
  background: rgba(0, 212, 170, 0.1);
  color: var(--accent);
  border-color: rgba(0, 212, 170, 0.35);
  transform: translateY(-1px);
}
pre.hljs-pre {
  max-width: 100%;
  margin: 0;
  padding: 16px;
  overflow: auto;
  color: #e2e8f0;
  background: #070d19 !important;
  font-family: var(--mono);
  font-size: 0.74rem;
  line-height: 1.65;
  tab-size: 4;
}
pre.hljs-pre::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
pre.hljs-pre::-webkit-scrollbar-track {
  background: transparent;
}
pre.hljs-pre::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
}
pre.hljs-pre::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 212, 170, 0.3);
}
pre.hljs-pre code {
  display: block;
  padding: 0;
  overflow: visible;
  color: inherit;
  background: transparent !important;
  white-space: pre;
}
.token.tag, .token.keyword, .token.builtin, .token.string, .token.number, .token.comment, .token.function, .token.class-name, .token.decorator, .token.attr-name, .token.parameter, .token.boolean, .token.variable, .token.attr-value, .token.punctuation, .token.operator, .token.selector { background: transparent !important; }
.token.keyword { color: #c792ea !important; }
.token.string { color: #c3e88d !important; }
.token.number { color: #f78c6c !important; }
.token.comment { color: #71819a !important; font-style: italic !important; }
.token.function { color: #82aaff !important; }
.token.class-name { color: #ffcb6b !important; }
.token.tag, .token.decorator { color: var(--accent) !important; }
.token.punctuation, .token.operator { color: #89ddff !important; }
.prompt-box { margin: 14px 0; padding: 14px; border: 1px solid rgba(167,139,250,.4); border-radius: var(--radius-md); background: rgba(167,139,250,.08); }
.prompt-box strong { display: block; margin-bottom: 8px; color: #d8cbff; }
.prompt-box p { white-space: pre-wrap; font-family: var(--mono); font-size: .75rem; }

.simulator-card { margin: 18px 0; padding: 15px; border: 1px solid var(--border-accent); border-radius: var(--radius-lg); background: rgba(0,212,170,.045); }
.sim-header { display: flex; align-items: flex-start; gap: 10px; }
.sim-icon { flex: 0 0 auto; font-size: 1.4rem; }
.sim-header h2 { margin-bottom: 4px; font-size: 1.08rem; }
.sim-header p { margin-bottom: 0; font-size: .76rem; }
.sim-controls { display: flex; align-items: end; gap: 9px; flex-wrap: wrap; margin: 15px 0; }
.form-label { display: grid; gap: 5px; color: var(--text-secondary); font-size: .74rem; }
.form-control, .form-select { min-height: 36px; padding: 7px 9px; border: 1px solid var(--border); border-radius: 7px; background: rgba(0,0,0,.22); color: var(--text-primary); }
.form-check { display: inline-flex; align-items: center; gap: 7px; color: var(--text-secondary); font-size: .77rem; }
.form-check-input { accent-color: var(--accent); }
.sim-code-output { min-height: 140px; }
.sim-footer { margin-top: 13px; }
.sim-feedback { color: var(--green); font-size: .75rem; }
.request-trace { display: grid; gap: 7px; margin-top: 14px; text-align: center; }
.trace-request, .trace-layer, .trace-response, .lifecycle-stage, .ioc-result, .mapping-output, .dto-result, .tx-result, .crud-result, .error-result, .security-result, .sdlc-stage { padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(0,0,0,.2); font-family: var(--mono); font-size: .75rem; }
.trace-layer { color: var(--purple); }
.trace-response { color: var(--green); }
.trace-arrow { color: var(--accent); }
.stepper-controls { justify-content: space-between; margin: 14px 0 8px; color: var(--text-muted); font-size: .75rem; }
.lifecycle-stage, .sdlc-stage { text-align: center; }
.lifecycle-stage strong, .lifecycle-stage p, .lifecycle-stage span, .sdlc-stage strong, .sdlc-stage p { display: block; }
.lifecycle-stage strong, .sdlc-stage strong { color: var(--accent); font-size: 1.05rem; }
.lifecycle-stage span { color: var(--text-muted); font-size: .7rem; }
.ioc-result strong, .ioc-result p, .mapping-output strong, .mapping-output b, .mapping-output p, .dto-result strong, .dto-result p, .tx-result strong, .tx-result p, .crud-result p, .crud-result span, .error-result strong, .error-result p, .security-result strong, .security-result p { display: block; }
.ioc-result strong, .crud-result strong, .mapping-output b { color: var(--accent); }
.mapping-output { display: grid; gap: 8px; text-align: center; }
.sim-form-grid { display: grid; grid-template-columns: 1fr; }
.sim-choice-grid { display: grid; grid-template-columns: 1fr; align-items: stretch; }
.sim-choice-grid > label:not(.form-label) { display: flex; align-items: center; gap: 7px; padding: 9px; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-secondary); font-size: .76rem; }
.sim-code-pair { display: grid; gap: 8px; }
.sim-code-pair .sim-code-output { min-height: 0; }
.sim-flow { display: flex; align-items: center; gap: 8px; overflow-x: auto; padding: 8px 0; }
.sim-flow span { flex: 0 0 auto; padding: 9px 10px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: rgba(0,0,0,.2); color: var(--text-primary); font-family: var(--mono); font-size: .72rem; }
.sim-flow b { flex: 0 0 auto; color: var(--accent); }
.sim-contract-output, .sim-quiz-output, .sim-bean-stage, .sim-dto-boundary-output, .sim-crud-builder-output, .sim-exception-pipeline-output, .sim-relation-builder-output, .sim-test-output, .sim-hot-stage { margin-top: 12px; }
.sim-result-title, .sim-bean-stage strong, .sim-hot-stage strong { display: block; color: var(--accent); font-size: .95rem; }
.sim-result-note, .sim-quiz-output p, .sim-bean-stage p, .sim-hot-stage p, .sim-test-output p { margin: 8px 0 0; color: var(--text-secondary); font-size: .76rem; }
.sim-bean-stage, .sim-hot-stage, .sim-quiz-output, .sim-test-output { padding: 13px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(0,0,0,.2); }
.sim-bean-stage span, .sim-hot-stage span { display: block; margin-top: 8px; color: var(--text-muted); font-family: var(--mono); font-size: .7rem; }
.sim-prompt-output { width: 100%; min-height: 150px; resize: vertical; font-family: var(--mono); font-size: .74rem; line-height: 1.55; }
.status-ok { color: var(--green); }
.status-error { color: var(--red); }
.tx-steps { display: grid; gap: 8px; margin: 13px 0; }
.tx-steps span { display: flex; justify-content: space-between; padding: 10px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: .76rem; }
.tx-steps b { color: var(--yellow); font-family: var(--mono); }
.crud-result > div { display: flex; align-items: center; gap: 10px; }
.crud-result > div strong { display: inline-grid; width: 48px; min-height: 28px; place-items: center; border-radius: 5px; background: var(--accent-soft); }
.crud-result code { color: var(--text-primary); }

/* Simulador HTTP + REST: jerarquía visual, estados y recorrido por capas. */
.sim-http-simulator, .sim-rest-contract-lab { position: relative; overflow: hidden; background: linear-gradient(145deg, rgba(0,212,170,.08), rgba(17,27,46,.68) 42%, rgba(167,139,250,.07)); }
.sim-http-simulator::before, .sim-rest-contract-lab::before { position: absolute; top: -80px; right: -70px; width: 190px; height: 190px; border: 1px solid rgba(0,212,170,.16); border-radius: 50%; content: ''; pointer-events: none; }
.sim-http-header { position: relative; z-index: 1; flex-wrap: wrap; gap: 11px; }
.sim-http-icon { display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid var(--border-accent); border-radius: 13px; background: var(--accent-soft); font-size: 1.35rem; }
.sim-header-copy { min-width: 0; flex: 1 1 220px; }
.sim-eyebrow { display: block; color: var(--accent); font-family: var(--mono); font-size: .6rem; font-weight: 600; letter-spacing: .09em; line-height: 1.3; }
.sim-header-copy h2 { letter-spacing: -.02em; }
.sim-local-badge { flex: 0 0 auto; padding: 5px 8px; border: 1px solid rgba(74,222,128,.28); border-radius: 999px; color: var(--green); font-family: var(--mono); font-size: .59rem; white-space: nowrap; }
.sim-http-hint { display: flex; align-items: flex-start; gap: 8px; margin: 16px 0 2px; padding: 10px 11px; border: 1px solid rgba(0,212,170,.2); border-radius: var(--radius-sm); background: rgba(0,212,170,.06); color: var(--text-secondary); }
.sim-http-hint p { margin: 0; font-size: .72rem; line-height: 1.5; }
.sim-http-controls { margin: 16px 0 12px; }
.sim-http-controls .form-label { flex: 1 1 180px; }
.sim-http-request-card, .sim-http-response-card, .sim-http-journey-panel, .sim-contract-builder, .sim-contract-review { position: relative; margin-top: 12px; padding: 13px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(4,12,24,.5); }
.sim-http-request-card { border-color: rgba(0,212,170,.35); }
.sim-http-card-heading, .sim-http-panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.sim-http-panel-heading { align-items: center; }
.sim-http-panel-heading h3 { margin: 3px 0 0; color: var(--text-primary); font-size: .91rem; }
.sim-http-method, .sim-http-status, .sim-contract-score { display: inline-flex; align-items: center; min-height: 24px; padding: 3px 7px; border-radius: 5px; font-family: var(--mono); font-size: .64rem; font-weight: 600; white-space: nowrap; }
.sim-http-method { background: var(--accent-soft); color: var(--accent); }
.sim-http-status { background: rgba(74,222,128,.12); color: var(--green); }
.sim-http-status.is-success { background: rgba(74,222,128,.12); color: var(--green); }
.sim-http-route { display: block; margin-top: 9px; overflow-wrap: anywhere; color: var(--text-primary); font-family: var(--mono); font-size: .79rem; font-weight: 500; }
.sim-http-request-meta { display: grid; gap: 8px; margin-top: 12px; }
.sim-http-request-meta > div { min-width: 0; padding-top: 8px; border-top: 1px solid var(--border); }
.sim-http-request-meta > div > span { display: block; margin-bottom: 3px; color: var(--text-muted); font-size: .64rem; text-transform: uppercase; letter-spacing: .06em; }
.sim-http-request-meta code { display: block; overflow-wrap: anywhere; color: #c5d7ee; font-size: .68rem; line-height: 1.5; }
.sim-http-progress { height: 5px; margin: 14px 0 13px; overflow: hidden; border-radius: 99px; background: rgba(169,184,207,.16); }
.sim-http-progress span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), #8b5cf6); transition: width .25s ease; }
.sim-step-counter { color: var(--text-muted); font-family: var(--mono); font-size: .63rem; white-space: nowrap; }
.sim-http-steps { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.sim-http-step { position: relative; }
.sim-http-step-button { display: grid; width: 100%; grid-template-columns: 27px minmax(0,1fr) auto; align-items: center; gap: 8px; min-height: 50px; padding: 8px; border: 1px solid var(--border); border-radius: 9px; background: rgba(255,255,255,.025); color: var(--text-secondary); text-align: left; cursor: pointer; transition: border-color .2s ease, background .2s ease, transform .2s ease; }
.sim-http-step-button:hover { border-color: var(--border-accent); background: rgba(0,212,170,.06); transform: translateY(-1px); }
.sim-http-step.is-active .sim-http-step-button { border-color: var(--accent); background: rgba(0,212,170,.1); box-shadow: 0 0 0 2px rgba(0,212,170,.08); }
.sim-http-step.is-done .sim-http-step-button { border-color: rgba(74,222,128,.3); }
.sim-http-step-number { display: grid; width: 23px; height: 23px; place-items: center; border: 1px solid var(--border); border-radius: 50%; color: var(--text-muted); font-family: var(--mono); font-size: .65rem; }
.sim-http-step.is-active .sim-http-step-number { border-color: var(--accent); color: var(--accent); }
.sim-http-step.is-done .sim-http-step-number { border-color: rgba(74,222,128,.5); color: var(--green); }
.sim-http-step-copy { min-width: 0; }
.sim-http-step-copy strong { display: block; color: var(--text-primary); font-size: .74rem; font-weight: 600; }
.sim-http-step-copy small { display: block; overflow: hidden; color: var(--text-muted); font-size: .66rem; text-overflow: ellipsis; white-space: nowrap; }
.sim-http-step-state { color: var(--text-muted); font-family: var(--mono); font-size: .59rem; }
.sim-http-step.is-active .sim-http-step-state { color: var(--accent); }
.sim-http-step.is-done .sim-http-step-state { color: var(--green); }
.sim-http-step-artifact { display: block; margin: 4px 8px 0 43px; color: var(--text-muted); font-family: var(--mono); font-size: .6rem; }
.sim-http-explainer { margin-top: 12px; padding: 11px; border-left: 2px solid var(--accent); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: rgba(0,212,170,.06); }
.sim-http-explainer strong { display: block; color: var(--text-primary); font-size: .76rem; }
.sim-http-explainer p { margin: 4px 0 6px; color: var(--text-secondary); font-size: .72rem; line-height: 1.5; }
.sim-http-explainer code { color: var(--accent); font-size: .64rem; }
.sim-http-response-card { border-color: rgba(74,222,128,.25); }
.sim-http-response-content { margin-top: 10px; }
.sim-http-response-content code { display: block; overflow-wrap: anywhere; color: var(--green); font-family: var(--mono); font-size: .76rem; }
.sim-http-response-content p { margin: 5px 0 0; color: var(--text-secondary); font-size: .72rem; }
.sim-http-footer { justify-content: space-between; align-items: flex-start; }
.sim-http-actions { display: flex; flex-wrap: wrap; gap: 7px; }
.sim-http-actions .btn:disabled { cursor: not-allowed; opacity: .58; }
.sim-rest-contract-lab { margin-top: 24px; }
.sim-contract-layout { display: grid; gap: 10px; margin-top: 14px; }
.sim-contract-builder, .sim-contract-review { margin-top: 0; }
.sim-contract-step-mark { display: grid; width: 24px; height: 24px; place-items: center; border: 1px solid rgba(167,139,250,.45); border-radius: 7px; color: var(--purple); font-family: var(--mono); font-size: .68rem; }
.sim-contract-builder .sim-controls { margin: 13px 0 12px; }
.sim-contract-id-field[hidden] { display: none; }
.sim-json-field { margin-top: 10px; }
.sim-field-help { display: block; color: var(--text-muted); font-size: .65rem; font-weight: 400; }
.sim-json-input { width: 100%; min-height: 150px; resize: vertical; font-family: var(--mono); font-size: .68rem; line-height: 1.55; }
.sim-contract-score { border: 1px solid var(--border); color: var(--text-muted); }
.sim-contract-score.is-complete { border-color: rgba(74,222,128,.35); color: var(--green); }
.sim-contract-checks { display: grid; gap: 7px; margin: 13px 0; }
.sim-contract-check { display: grid; grid-template-columns: 24px minmax(0,1fr); gap: 7px; align-items: start; padding: 8px; border: 1px solid var(--border); border-radius: 8px; }
.sim-contract-check.is-valid { border-color: rgba(74,222,128,.27); background: rgba(74,222,128,.05); }
.sim-contract-check.is-invalid { border-color: rgba(251,113,133,.35); background: rgba(251,113,133,.05); }
.sim-contract-check-icon { display: grid; width: 20px; height: 20px; place-items: center; border-radius: 50%; background: rgba(169,184,207,.12); color: var(--text-muted); font-family: var(--mono); font-size: .68rem; font-weight: 700; }
.sim-contract-check.is-valid .sim-contract-check-icon { background: rgba(74,222,128,.14); color: var(--green); }
.sim-contract-check.is-invalid .sim-contract-check-icon { background: rgba(251,113,133,.14); color: var(--red); }
.sim-contract-check strong, .sim-contract-check small { display: block; }
.sim-contract-check strong { color: var(--text-primary); font-size: .7rem; }
.sim-contract-check small { margin-top: 2px; color: var(--text-muted); font-size: .64rem; line-height: 1.4; }
.sim-contract-preview { padding-top: 11px; border-top: 1px solid var(--border); }
.sim-contract-code { min-height: 0 !important; margin-top: 10px !important; font-size: .66rem !important; }
.sim-contract-preview .sim-result-note { line-height: 1.5; }
.sim-contract-preview .sim-result-note strong { display: inline; color: var(--text-primary); }

.xp-toast { position: fixed; right: 14px; bottom: 14px; z-index: 400; display: grid; grid-template-columns: 32px 1fr; gap: 8px; min-width: 220px; padding: 11px; border: 1px solid var(--border-accent); border-radius: var(--radius-md); background: #10253a; box-shadow: var(--shadow); transform: translateY(18px); opacity: 0; transition: opacity .2s ease, transform .2s ease; }
.xp-toast.show { transform: translateY(0); opacity: 1; }
.xp-toast-icon { font-size: 1.3rem; }
.xp-toast-amount { color: var(--accent); font-weight: 600; }
.xp-toast-reason { color: var(--text-secondary); font-size: .7rem; }
.modal { position: fixed; inset: 0; z-index: 450; display: grid; place-items: center; padding: 18px; background: rgba(0,0,0,.7); }
.modal-content { position: relative; width: min(420px, 100%); padding: 24px; border: 1px solid var(--border-accent); border-radius: var(--radius-lg); background: var(--bg-secondary); text-align: center; }
.modal-close { position: absolute; top: 8px; right: 10px; border: 0; background: transparent; color: var(--text-secondary); font-size: 1.5rem; cursor: pointer; }
.victory-stats { display: flex; justify-content: center; gap: 20px; margin: 18px 0; }
.v-stat strong, .v-stat small { display: block; }
.v-stat strong { color: var(--accent); font-size: 1.35rem; }
.v-stat small { color: var(--text-muted); font-size: .7rem; }

@media (min-width: 640px) {
  .setup-grid, .check-grid, .crud-route-grid, .error-map, .comparison-grid, .responsibility-split { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .setup-step--run { grid-column: 1 / -1; }
  .setup-step--run [data-code-module] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .setup-verification-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sim-form-grid { grid-template-columns: repeat(2, 1fr); }
  .sim-choice-grid { grid-template-columns: repeat(2, 1fr); }
  .sim-http-request-meta { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .welcome-card { padding: 24px; }
}

@media (min-width: 768px) {
  .sidebar-toggle, .btn-close-sidebar { display: none; }
  .welcome-hero { min-height: 500px; padding: 72px 30px; }
  .setup-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .content-container, .welcome-card { width: min(1120px, calc(100% - 48px)); }
  .module-hero { width: min(1120px, calc(100% - 48px)); padding: 42px 32px; }
  .workflow-step { grid-template-columns: 40px 1fr; }
  .simulator-card { padding: 20px; }
  .sim-contract-layout { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); align-items: start; }
  .mental-model { justify-content: center; }
}

@media (min-width: 1024px) {
  .sidebar { transform: translateX(0); }
  .sidebar-backdrop { display: none; }
  .main-content { margin-left: var(--sidebar-width); }
  .top-header { padding-right: 28px; padding-left: 28px; }
  .setup-step--run [data-code-module] { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* Módulo 2: REST Actions Grid */
.rest-actions-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin: 20px 0;
}

.rest-action-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.rest-action-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
  border-color: rgba(0, 212, 170, 0.4);
}

.rest-action-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.rest-action-header code {
  font-size: 0.85rem;
  color: var(--text-primary);
}

.rest-action-card h3 {
  margin: 0 0 6px 0;
  font-size: 1rem;
  color: var(--text-primary);
}

.rest-action-card p {
  margin: 0 0 16px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-grow: 1;
}

.rest-action-footer {
  font-size: 0.75rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  padding-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.rest-action-footer strong {
  color: var(--accent);
}

.is-get { background: rgba(74, 222, 128, 0.15) !important; color: var(--green) !important; }
.is-post { background: rgba(96, 165, 250, 0.15) !important; color: #60a5fa !important; }
.is-put { background: rgba(250, 204, 21, 0.15) !important; color: #facc15 !important; }
.is-delete { background: rgba(248, 113, 113, 0.15) !important; color: #f87171 !important; }

/* Módulos 13–16: escalabilidad */
.pagination-params, .pool-parameters { display: grid; gap: 10px; margin: 14px 0; }
.pagination-param-card, .pool-param-card { padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.035); }
.pagination-param-card code, .pool-param-card code { display: block; color: var(--accent); font-size: .85rem; margin-bottom: 4px; }
.pagination-param-card span, .pool-param-card span { display: block; color: var(--text-secondary); font-size: .76rem; }
.pagination-param-card small, .pool-param-card small { display: block; color: var(--text-muted); font-size: .66rem; margin-top: 3px; }
.pagination-contract { margin: 14px 0; padding: 16px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.025); }
.pagination-comparison { display: grid; gap: 10px; margin: 14px 0; }
.pagination-comparison article { padding: 14px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.03); }
.pagination-comparison h3 { color: var(--accent); margin-bottom: 6px; }
.n-plus-one-visual { display: grid; gap: 12px; margin: 16px 0; }
.n-plus-one-column { padding: 14px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.03); }
.n-plus-one-column h3 { margin-bottom: 10px; font-size: .9rem; }
.n-plus-one-bad { border-color: rgba(251,113,133,.4); }
.n-plus-one-good { border-color: rgba(74,222,128,.4); }
.n-plus-one-queries { display: grid; gap: 4px; }
.n-plus-one-query { padding: 6px 9px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: rgba(0,0,0,.15); }
.n-plus-one-query code { font-size: .68rem; color: var(--text-secondary); white-space: pre-wrap; word-break: break-all; }
.n-plus-one-first { border-color: var(--accent); background: var(--accent-soft); }
.n-plus-one-first code { color: var(--accent); }
.n-plus-one-extra { border-color: rgba(251,113,133,.25); }
.n-plus-one-more { color: var(--text-muted); font-size: .72rem; padding: 6px 9px; }
.pool-dev-prod { display: grid; gap: 10px; margin: 14px 0; }
.pool-profile { padding: 14px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.03); }
.pool-profile h3 { margin-bottom: 8px; }
.pool-profile code { display: block; font-size: .72rem; color: var(--accent); margin-top: 6px; }

/* Simulador de paginación */
.sim-pg-output { margin-top: 12px; }
.sim-pg-label { color: var(--text-muted); font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 6px; }
.sim-pg-records { margin-bottom: 14px; }
.sim-pg-grid { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.sim-pg-item { display: grid; width: 32px; height: 32px; place-items: center; border: 1px solid var(--border); border-radius: 6px; background: rgba(0,212,170,.08); color: var(--accent); font-family: var(--mono); font-size: .72rem; font-weight: 500; }
.sim-pg-page-nav { display: flex; flex-wrap: wrap; gap: 4px; }
.sim-pg-page-btn { padding: 5px 10px; border: 1px solid var(--border); border-radius: 6px; background: transparent; color: var(--text-secondary); cursor: pointer; font-size: .72rem; }
.sim-pg-page-btn.is-active { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.sim-pg-ellipsis { color: var(--text-muted); font-size: .72rem; padding: 5px 4px; }
.sim-pg-pages { margin-top: 10px; }

/* Simulador Pageable flow */
.sim-pageable-stage { padding: 13px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(0,0,0,.2); text-align: center; }
.sim-pageable-stage strong { display: block; color: var(--accent); font-size: .95rem; }
.sim-pageable-stage p { color: var(--text-secondary); font-size: .76rem; margin: 6px 0; }
.sim-pageable-stage span { display: block; color: var(--text-muted); font-family: var(--mono); font-size: .7rem; }

/* Simulador N+1 */
.sim-npo-output { margin-top: 12px; }
.sim-npo-result { padding: 14px; border: 1px solid var(--border); border-radius: var(--radius-md); }
.sim-npo-result.is-slow { border-color: rgba(251,113,133,.4); background: rgba(251,113,133,.05); }
.sim-npo-result.is-fast { border-color: rgba(74,222,128,.4); background: rgba(74,222,128,.05); }
.sim-npo-stats { display: flex; gap: 16px; margin-bottom: 10px; }
.sim-npo-count { color: var(--text-primary); font-weight: 600; font-size: .85rem; }
.sim-npo-time { color: var(--text-muted); font-family: var(--mono); font-size: .75rem; }
.sim-npo-queries { display: grid; gap: 4px; }
.sim-npo-query { padding: 6px 9px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: rgba(0,0,0,.15); }
.sim-npo-query code { font-size: .68rem; color: var(--text-secondary); white-space: pre-wrap; word-break: break-all; }
.sim-npo-first { border-color: var(--accent); }
.sim-npo-first code { color: var(--accent); }
.sim-npo-extra { border-color: rgba(251,113,133,.2); }
.sim-npo-more { color: var(--text-muted); font-size: .72rem; padding: 4px 9px; }

/* Simulador SQL Generator */
.sim-sql-output { margin-top: 12px; }
.sim-sql-compare { display: grid; gap: 10px; }
.sim-sql-panel { min-width: 0; }
.sim-sql-panel-label { color: var(--accent); font-size: .68rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 6px; }
.sim-sql-context { margin-top: 12px; padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.025); }
.sim-sql-context p { font-size: .76rem; margin-bottom: 6px; }

/* Simulador Pool Monitor */
.sim-pool-output { margin-top: 12px; }
.sim-pool-visual { padding: 14px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(0,0,0,.15); }
.sim-pool-bars { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 10px; }
.sim-pool-bar-cell { width: 28px; height: 36px; border-radius: 4px; transition: background .2s ease; }
.sim-pool-bar-cell.is-active { background: var(--accent); }
.sim-pool-bar-cell.is-idle { background: rgba(167,139,250,.3); }
.sim-pool-legend { display: flex; gap: 16px; flex-wrap: wrap; }
.sim-pool-legend-item { display: flex; align-items: center; gap: 6px; font-size: .72rem; color: var(--text-secondary); }
.sim-pool-dot { width: 10px; height: 10px; border-radius: 3px; }
.sim-pool-dot.is-active { background: var(--accent); }
.sim-pool-dot.is-idle { background: rgba(167,139,250,.4); }
.sim-pool-dot.is-pending { background: var(--yellow); }
.sim-pool-warning, .sim-pool-ok { margin-top: 10px; padding: 10px; border-radius: var(--radius-sm); }
.sim-pool-warning { border: 1px solid rgba(251,113,133,.35); background: rgba(251,113,133,.06); }
.sim-pool-ok { border: 1px solid rgba(74,222,128,.35); background: rgba(74,222,128,.06); }
.sim-pool-warning p, .sim-pool-ok p { font-size: .74rem; margin-top: 4px; }

@media (min-width: 640px) {
  .pagination-params, .pool-parameters { grid-template-columns: repeat(3, 1fr); }
  .pagination-comparison, .pool-dev-prod { grid-template-columns: repeat(2, 1fr); }
  .n-plus-one-visual { grid-template-columns: repeat(2, 1fr); }
  .sim-sql-compare { grid-template-columns: repeat(2, 1fr); }
}