/* ────────────────────────────────────────────────────────────────────
   LEX App — Ayuda facturador
   Hoja de estilos basada en el design system LEX App
   (colors_and_type.css + ui_kits/lex-app-web/Shell.jsx).
   ──────────────────────────────────────────────────────────────────── */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

/* ── Tokens (espejo de colors_and_type.css del DS) ─────────────────── */
:root {
  --lex-blue:        #40A0F0;
  --lex-blue-deep:   #1B84FF;
  --lex-blue-dark:   #1379F0;
  --lex-mint:        #60D0D0;
  --lex-mint-deep:   #2DC4B6;
  --lex-ink:         #16151E;

  --primary:         #1B84FF;
  --primary-hover:   #1379F0;
  --primary-active:  #0F6BD9;
  --primary-light:   #EEF6FF;
  --primary-on:      #FFFFFF;

  --fg-1: #2C2D30;
  --fg-2: #4B5675;
  --fg-3: #676A72;
  --fg-4: #8E9198;
  --fg-5: #B5B7C8;
  --fg-inverse: #FFFFFF;

  --bg-page:    #F9F9F9;
  --bg-card:    #FFFFFF;
  --bg-subtle:  #F4F4F4;
  --bg-hover:   #F1F1F4;
  --bg-overlay: rgba(22, 21, 30, 0.40);

  --border-1: #F1F1F4;
  --border-2: #DBDFE9;
  --border-3: #DDDDDD;

  --success:      #17C653;
  --success-soft: #EAFFF1;
  --success-fg:   #04B440;
  --warning:      #F6C000;
  --warning-soft: #FFF8DD;
  --warning-fg:   #B47900;
  --danger:       #F8285A;
  --danger-soft:  #FFEEF3;
  --danger-fg:    #D81A48;
  --info:         var(--lex-blue);
  --info-soft:    #E9F3FF;
  --info-fg:      #1379F0;

  --dark-bg:   #16151E;
  --dark-bg-2: #1B1C22;
  --dark-bg-3: #26272F;
  --dark-fg-1: #FFFFFF;
  --dark-fg-2: #9A9CAE;
  --dark-fg-3: #676A72;
  --dark-border: #26272F;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius-xs:  4px;
  --radius-sm:  6px;
  --radius:     7px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px 0 rgba(0,0,0,0.04), 0 1px 2px -1px rgba(0,0,0,0.03);
  --shadow:    0 4px 12px -2px rgba(0,0,0,0.04), 0 1px 2px 0 rgba(0,0,0,0.03);
  --shadow-focus: 0 0 0 3px rgba(27,132,255,0.18);
}

/* ── Dark mode (mantiene sidebar siempre oscuro; afecta a main) ────── */
html.dark {
  --fg-1: #E4E6EE;
  --fg-2: #B5B7C8;
  --fg-3: #9A9CAE;
  --fg-4: #76788A;
  --fg-5: #4F5163;

  --bg-page:   #0F0F14;
  --bg-card:   #1B1C22;
  --bg-subtle: #26272F;
  --bg-hover:  #26272F;

  --border-1: #26272F;
  --border-2: #2E2F38;
  --border-3: #2E2F38;

  --primary-light: rgba(27,132,255,0.14);
  --warning-soft:  rgba(246,192,0,0.10);
  --info-soft:     rgba(64,160,240,0.12);
  --danger-soft:   rgba(248,40,90,0.10);
  --success-soft:  rgba(23,198,83,0.10);
}

/* ── Reset mínimo ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; }

html, body {
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.5;
  color: var(--fg-1);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Layout shell ──────────────────────────────────────────────────── */
.app-shell {
  display: flex;
  min-height: 100vh;
  width: 100%;
}
.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-page);
}

/* ── Sidebar (oscuro, 260px) ───────────────────────────────────────── */
.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--dark-bg);
  color: var(--dark-fg-2);
  border-right: 1px solid var(--dark-border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}
.sidebar-brand {
  height: 70px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 22px;
  border-bottom: 1px solid var(--dark-border);
}
.sidebar-brand img { height: 28px; width: auto; }
.sidebar-eyebrow {
  margin: 0;
  padding: 18px 22px 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: #56586A;
}
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 6px 12px 20px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 14px;
  border-radius: 8px;
  color: var(--dark-fg-2);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: background-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              color 150ms cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-link i[data-lucide] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: inherit;
  stroke-width: 1.8;
}
.nav-link:hover {
  background: rgba(255,255,255,0.04);
  color: var(--dark-fg-1);
}
.nav-link.is-active {
  background: rgba(27,132,255,0.14);
  color: var(--dark-fg-1);
}
.nav-link.is-active i[data-lucide] { color: var(--primary); }

.sidebar-footer {
  padding: 14px 14px 18px;
  border-top: 1px solid var(--dark-border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sidebar-footer .support-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 6px;
  background: transparent;
  color: var(--dark-fg-2);
  border: 1px solid var(--dark-border);
  font-size: 12.5px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 150ms, color 150ms, border-color 150ms;
}
.sidebar-footer .support-btn:hover {
  background: rgba(255,255,255,0.04);
  color: var(--dark-fg-1);
  border-color: #34353F;
}
.sidebar-footer .support-btn i[data-lucide] {
  width: 16px; height: 16px; stroke-width: 1.8;
}

/* ── Topbar (claro, 70px sticky) ───────────────────────────────────── */
.topbar {
  height: 70px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 5;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--fg-4);
}
.breadcrumb a {
  color: var(--fg-4);
  text-decoration: none;
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .crumb-sep {
  width: 12px; height: 12px;
  stroke-width: 1.8;
}
.breadcrumb .crumb-current { color: var(--fg-2); font-weight: 500; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  background: var(--bg-subtle);
  border: 1px solid var(--border-2);
  border-radius: 8px;
  padding: 3px;
  gap: 2px;
}
.theme-toggle button {
  width: 32px;
  height: 30px;
  border: 0;
  background: transparent;
  border-radius: 6px;
  color: var(--fg-3);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 150ms, color 150ms;
}
.theme-toggle button:hover { color: var(--fg-1); background: var(--bg-hover); }
.theme-toggle button.is-active {
  background: var(--bg-card);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.theme-toggle button i[data-lucide] {
  width: 16px; height: 16px; stroke-width: 1.8;
}

/* ── Artículo / documento ──────────────────────────────────────────── */
.article {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 48px 64px;
  width: 100%;
}
.article h1 {
  margin: 0 0 12px;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--fg-1);
}
.article .lead {
  margin: 0 0 32px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg-2);
}
.article h2 {
  margin: 48px 0 16px;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--fg-1);
  display: flex;
  align-items: center;
  gap: 12px;
}
.article h2 .section-icon {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 8px;
  flex-shrink: 0;
}
.article h2 .section-icon i[data-lucide] {
  width: 20px; height: 20px; stroke-width: 1.8;
}
.article h3 {
  margin: 32px 0 12px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--fg-1);
}
.article p {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--fg-2);
}
.article ul, .article ol {
  margin: 0 0 18px;
  padding-left: 22px;
  color: var(--fg-2);
}
.article li {
  margin: 0 0 8px;
  font-size: 13.5px;
  line-height: 1.65;
}
.article li ul, .article li ol { margin-top: 8px; }
.article strong, .article b { color: var(--fg-1); font-weight: 600; }
.article a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 150ms, color 150ms;
}
.article a:hover { color: var(--primary-hover); border-bottom-color: currentColor; }
.article hr {
  border: 0;
  border-top: 1px solid var(--border-1);
  margin: 40px 0;
}
.article code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--bg-subtle);
  color: var(--fg-1);
  border: 1px solid var(--border-1);
  padding: 1px 6px;
  border-radius: 4px;
}

/* ── Figuras (imagen + caption) ────────────────────────────────────── */
.figure {
  margin: 20px 0 28px;
}
.figure img {
  border: 1px solid var(--border-2);
  border-radius: var(--radius-md);
  background: var(--bg-card);
}
.figure figcaption {
  margin-top: 8px;
  font-size: 11.5px;
  text-align: center;
  color: var(--fg-4);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

/* ── Callouts ──────────────────────────────────────────────────────── */
.callout {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border-2);
  background: var(--bg-card);
  margin: 24px 0;
  align-items: flex-start;
}
.callout .callout-icon {
  display: inline-flex;
  width: 32px; height: 32px;
  border-radius: 8px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
}
.callout .callout-icon i[data-lucide] {
  width: 18px; height: 18px; stroke-width: 1.8;
}
.callout .callout-body { flex: 1; min-width: 0; }
.callout .callout-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-1);
  margin: 0 0 4px;
}
.callout .callout-text {
  font-size: 13px;
  line-height: 1.6;
  color: var(--fg-2);
  margin: 0;
}
.callout .callout-text + .callout-text { margin-top: 6px; }

.callout--warning {
  background: var(--warning-soft);
  border-color: rgba(246,192,0,0.35);
}
.callout--warning .callout-icon { background: rgba(246,192,0,0.18); color: var(--warning-fg); }

.callout--info {
  background: var(--info-soft);
  border-color: rgba(64,160,240,0.30);
}
.callout--info .callout-icon { background: rgba(64,160,240,0.16); color: var(--info-fg); }

.callout--danger {
  background: var(--danger-soft);
  border-color: rgba(248,40,90,0.30);
}
.callout--danger .callout-icon { background: rgba(248,40,90,0.14); color: var(--danger-fg); }

.callout--success {
  background: var(--success-soft);
  border-color: rgba(23,198,83,0.30);
}
.callout--success .callout-icon { background: rgba(23,198,83,0.14); color: var(--success-fg); }

/* ── Q&A (reemplaza dl/dt/dd) ──────────────────────────────────────── */
.qa-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
}
.qa-item {
  background: var(--bg-card);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
}
.qa-item .qa-question {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-1);
}
.qa-item .qa-question i[data-lucide] {
  width: 18px; height: 18px;
  color: var(--warning-fg);
  stroke-width: 1.8;
}
.qa-item .qa-answer {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--fg-2);
}

/* ── Plan / pricing cards ──────────────────────────────────────────── */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 20px 0 8px;
}
@media (max-width: 720px) {
  .plan-grid { grid-template-columns: 1fr; }
}
.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.plan-card.is-featured { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.plan-card .plan-eyebrow {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--fg-4);
}
.plan-card.is-featured .plan-eyebrow { color: var(--primary); }
.plan-card .plan-title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--fg-1);
}
.plan-card .plan-desc {
  margin: 0 0 4px;
  font-size: 13px;
  color: var(--fg-3);
  line-height: 1.55;
}
.plan-card ul {
  list-style: none;
  padding: 0;
  margin: 4px 0 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.plan-card ul li {
  position: relative;
  padding-left: 22px;
  font-size: 13px;
  color: var(--fg-2);
  line-height: 1.5;
}
.plan-card ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 5px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--success-soft);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2304B440' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>");
  background-size: 10px 10px;
  background-position: center;
  background-repeat: no-repeat;
}

/* ── Footer dentro de artículo ─────────────────────────────────────── */
.article-footer {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border-1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 12px;
  color: var(--fg-4);
}
.article-footer a { color: var(--primary); text-decoration: none; }
.article-footer a:hover { text-decoration: underline; }

/* ── Scrollbar (sutil) ─────────────────────────────────────────────── */
.main::-webkit-scrollbar,
.sidebar-nav::-webkit-scrollbar { width: 8px; height: 8px; }
.main::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 8px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: #2E2F38; border-radius: 8px; }