/* ============================================================
   Librastro · Landing pública
   Lógica Hispalis 2020 S.L.
   ------------------------------------------------------------
   Sistema editorial. Tinta + rojo de signatura sobre crema.
   Display: Newsreader (serif).  Body: Inter (humanista).
   ============================================================ */

/* ---------- Tokens ------------------------------------------ */
:root {
  /* Tinta y papel */
  --ink: #1A1F2C;
  --ink-soft: #2D3340;
  --ink-mute: #5A6072;
  --rule: #C9C0AE;
  --rule-soft: #E2DBCB;
  --paper: #F3EEE3;
  --paper-deep: #EAE3D2;
  --cream: #F8F4EA;
  --white: #FFFFFF;

  /* Acentos */
  --signatura: #A03B1F;          /* rojo de signatura — Anagrama-like */
  --signatura-deep: #7E2A14;
  --verde-papel: #3F5A4E;        /* secundario sutil */

  /* Tipo */
  --serif: "Newsreader", "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Métrica */
  --maxw: 1240px;
  --col-narrow: 720px;
  --radius: 4px;
  --radius-lg: 8px;

  /* Sombras (mínimas, como cartón ligero) */
  --shadow-sm: 0 1px 0 rgba(26, 31, 44, 0.04), 0 1px 2px rgba(26, 31, 44, 0.04);
  --shadow-md: 0 1px 0 rgba(26, 31, 44, 0.06), 0 8px 24px -12px rgba(26, 31, 44, 0.12);
}

/* ---------- Reset ------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; }

/* ---------- Base -------------------------------------------- */
body {
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Tipografía editorial */
.serif { font-family: var(--serif); }
.eyebrow {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink-mute);
}
.eyebrow.accent { color: var(--signatura); }
.eyebrow .dot {
  display: inline-block; width: 6px; height: 6px;
  background: var(--signatura); border-radius: 50%;
  margin-right: 8px; vertical-align: middle;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
@media (prefers-reduced-motion: reduce) {
  .eyebrow .dot { animation: none; }
  html { scroll-behavior: auto; }
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.012em;
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: clamp(40px, 6.4vw, 78px); line-height: 1.02; letter-spacing: -0.022em; }
h2 { font-size: clamp(30px, 3.6vw, 48px); line-height: 1.08; letter-spacing: -0.018em; }
h3 { font-size: clamp(22px, 2.2vw, 28px); line-height: 1.18; }
h4 { font-size: 19px; line-height: 1.25; }

p { margin: 0; text-wrap: pretty; }
.lead {
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.55;
  color: var(--ink-soft);
}

.tabular { font-variant-numeric: tabular-nums; }

/* Container ---------------------------------------------------*/
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
@media (max-width: 640px) { .wrap { padding: 0 20px; } }

/* Section base */
section { padding: clamp(72px, 9vw, 128px) 0; position: relative; }
.section-label {
  display: flex; align-items: baseline; gap: 18px;
  margin-bottom: 36px;
  border-top: 1px solid var(--ink);
  padding-top: 14px;
}
.section-label .num {
  font-family: var(--serif);
  font-size: 14px;
  font-style: italic;
  color: var(--ink-mute);
  font-variant-numeric: tabular-nums;
}
.section-label .label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--ink);
}

/* Botones ---------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  font-size: 14px; font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 999px;
  transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--ink);
  color: var(--cream);
}
.btn-primary:hover { background: var(--signatura); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
}
.btn-ghost:hover { background: var(--ink); color: var(--cream); }
.btn-link {
  padding: 0; background: none; color: var(--ink);
  border-bottom: 1px solid var(--ink);
  border-radius: 0;
  padding-bottom: 2px;
  font-weight: 500;
}
.btn-link:hover { color: var(--signatura); border-color: var(--signatura); }

.btn .arrow { transition: transform .2s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(243, 238, 227, 0.0);
  transition: background .3s ease, backdrop-filter .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(243, 238, 227, 0.85);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-bottom-color: var(--rule-soft);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand {
  font-family: var(--serif);
  font-size: 24px; font-weight: 500; letter-spacing: -0.02em;
  text-decoration: none; color: var(--ink);
  display: inline-flex; align-items: center; gap: 8px;
}
.brand .ast { color: var(--signatura); font-style: italic; }

.nav { display: flex; align-items: center; gap: 32px; }
.nav a {
  text-decoration: none; color: var(--ink-soft);
  font-size: 14px; font-weight: 500;
  position: relative;
  transition: color .15s;
}
.nav a:hover { color: var(--ink); }
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  height: 1px; width: 0;
  background: var(--signatura); transition: width .2s ease;
}
.nav a:hover::after { width: 100%; }

.header-cta { display: flex; align-items: center; gap: 14px; }

@media (max-width: 880px) {
  .nav { display: none; }
}
@media (max-width: 540px) {
  .header-cta .btn { padding: 10px 14px; font-size: 13px; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: clamp(56px, 8vw, 96px) 0 clamp(72px, 8vw, 112px);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 0%, rgba(160, 59, 31, 0.04), transparent 60%),
    radial-gradient(ellipse at 0% 100%, rgba(63, 90, 78, 0.05), transparent 55%);
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
}

.hero-eyebrow { margin-bottom: 28px; }
.hero h1 {
  margin-bottom: 28px;
}
.hero h1 .em {
  font-style: italic;
  color: var(--signatura);
}
.hero .lead { max-width: 56ch; margin-bottom: 36px; }

.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 32px; }

.hero-cred {
  border-top: 1px solid var(--rule-soft);
  padding-top: 20px;
  font-size: 13px;
  color: var(--ink-mute);
  line-height: 1.6;
  max-width: 56ch;
}
.hero-cred strong { color: var(--ink-soft); font-weight: 600; }
.hero-cred .sep { color: var(--rule); margin: 0 8px; }

/* Hero visual: lomos de libros tipográficos */
.shelf {
  display: grid;
  grid-template-columns: repeat(7, 1fr); /* 5 single spines + 2-col brand spine = 7 */
  gap: 6px;
  height: clamp(360px, 52vw, 540px);
  align-items: end;
  position: relative;
  padding-bottom: 26px;
}
.shelf::after {
  content: "";
  position: absolute;
  left: -10px; right: -10px; bottom: 12px;
  height: 6px;
  background: var(--ink);
  box-shadow: 0 4px 0 -2px rgba(26,31,44,0.25);
}
.spine {
  position: relative;
  border-radius: 2px 2px 0 0;
  display: flex; align-items: center; justify-content: center;
  padding: 18px 6px;
  overflow: hidden;
  transition: transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s;
  cursor: default;
  box-shadow: inset -2px 0 0 rgba(0,0,0,0.08), inset 2px 0 0 rgba(255,255,255,0.06);
}
.spine:hover { transform: translateY(-8px); box-shadow: 0 10px 24px -8px rgba(26,31,44,0.25), inset -2px 0 0 rgba(0,0,0,0.08); }
.spine .title {
  font-family: var(--serif);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: clamp(13px, 1.2vw, 16px);
  letter-spacing: 0.02em;
  font-weight: 500;
  text-align: left;
  white-space: nowrap;
  font-style: var(--style, normal);
}
.spine .author {
  font-family: var(--sans);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  position: absolute;
  bottom: 14px;
  opacity: 0.7;
}
.spine .ribbon {
  position: absolute;
  top: 18px; left: 50%; transform: translateX(-50%);
  width: 14px; height: 14px; border-radius: 50%;
  border: 1px solid currentColor;
  opacity: 0.45;
}
.spine.tall { height: 100%; }
.spine.medium { height: 92%; }
.spine.short { height: 80%; }

/* Cada lomo con su tinta */
.spine.s1 { background: #1A1F2C; color: #F3EEE3; --style: italic; }
.spine.s2 { background: #A03B1F; color: #F3EEE3; }
.spine.s3 { background: #F3EEE3; color: #1A1F2C; border: 1px solid #1A1F2C; }
.spine.s4 { background: #3F5A4E; color: #F3EEE3; --style: italic; }
.spine.s5 { background: #2D3340; color: #C9A86A; }
.spine.s6 { background: #C9A86A; color: #1A1F2C; }
.spine.s7 { background: #1A1F2C; color: #A03B1F; }

/* El "tomo Librastro" — más ancho, hace de marca */
.spine.brand-spine {
  grid-column: span 2;
  background: linear-gradient(180deg, #1A1F2C 0%, #0F1218 100%);
  color: var(--cream);
  height: 100%;
  padding: 24px 12px;
  flex-direction: column;
  justify-content: space-between;
  align-items: stretch;
  border: 1px solid rgba(255,255,255,0.06);
}
.spine.brand-spine .top-mark {
  font-family: var(--serif);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-align: center;
  font-style: italic;
  color: var(--signatura);
  opacity: 0.85;
}
.spine.brand-spine .word {
  font-family: var(--serif);
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1;
  text-align: center;
  letter-spacing: -0.02em;
  font-weight: 500;
}
.spine.brand-spine .word .ast { color: var(--signatura); font-style: italic; }
.spine.brand-spine .meta {
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-align: center;
  opacity: 0.55;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 10px;
}

@media (max-width: 540px) {
  .shelf { grid-template-columns: repeat(5, 1fr); height: 320px; gap: 4px; }
  .spine.s5 { display: none; }
}

/* ============================================================
   STAT STRIP
   ============================================================ */
.strip {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 28px 0;
  background: var(--paper-deep);
}
.strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.strip-item {
  border-left: 1px solid var(--rule);
  padding: 0 0 0 18px;
}
.strip-item:first-child { border-left: 0; padding-left: 0; }
.strip-item .num {
  font-family: var(--serif);
  font-size: clamp(28px, 2.6vw, 36px);
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.strip-item .num .em { font-style: italic; color: var(--signatura); }
.strip-item .lab {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
  font-weight: 500;
}
@media (max-width: 720px) {
  .strip-grid { grid-template-columns: repeat(2, 1fr); }
  .strip-item:nth-child(3) { border-left: 0; padding-left: 0; }
}

/* ============================================================
   PROBLEMA — 3 columnas
   ============================================================ */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.problem-card {
  padding: 36px 32px 36px 0;
  border-right: 1px solid var(--rule);
  position: relative;
}
.problem-card:last-child { border-right: 0; padding-right: 0; }
.problem-card:not(:first-child) { padding-left: 32px; }
.problem-card .icon {
  width: 32px; height: 32px;
  margin-bottom: 28px;
  color: var(--signatura);
}
.problem-card h3 { margin-bottom: 14px; }
.problem-card .body {
  font-size: 16px;
  color: var(--ink-soft);
  line-height: 1.6;
  max-width: 38ch;
}
.problem-card .quote {
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--ink-mute);
  margin-top: 18px;
  padding-left: 14px;
  border-left: 2px solid var(--signatura);
}

@media (max-width: 880px) {
  .problem-grid { grid-template-columns: 1fr; }
  .problem-card { border-right: 0; border-bottom: 1px solid var(--rule); padding: 28px 0; }
  .problem-card:last-child { border-bottom: 0; }
  .problem-card:not(:first-child) { padding-left: 0; }
}

.section-intro {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  margin-bottom: 56px;
}
.section-intro h2 { max-width: 14ch; }
.section-intro .lead { max-width: 56ch; }
@media (max-width: 880px) {
  .section-intro { grid-template-columns: 1fr; gap: 24px; }
}

/* ============================================================
   CÓMO FUNCIONA — Timeline
   ============================================================ */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 24px;
}
.step {
  display: grid;
  grid-template-columns: 80px minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px;
  padding: 36px 0;
  border-top: 1px solid var(--rule);
  position: relative;
  transition: background .2s ease;
}
.step:last-child { border-bottom: 1px solid var(--rule); }
.step:hover { background: rgba(255,255,255,0.4); }

.step-num {
  font-family: var(--serif);
  font-size: clamp(40px, 4.8vw, 64px);
  line-height: 0.9;
  font-weight: 400;
  font-style: italic;
  color: var(--signatura);
  font-variant-numeric: tabular-nums;
}
.step-content h3 { margin-bottom: 10px; }
.step-content .body {
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 50ch;
}
.step-illu {
  display: flex;
  align-items: center; justify-content: center;
  padding: 12px;
  background: var(--cream);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius);
  min-height: 140px;
  position: relative;
  overflow: hidden;
}
.step-illu svg { max-height: 120px; width: auto; }

@media (max-width: 880px) {
  .step { grid-template-columns: 1fr; gap: 12px; }
  .step-illu { display: none; }
}

/* ============================================================
   PARA QUIÉN — 3 cards grandes
   ============================================================ */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.audience-card {
  background: var(--white);
  border: 1px solid var(--rule-soft);
  padding: 36px 28px 32px;
  border-radius: var(--radius-lg);
  display: flex; flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.audience-card:hover {
  transform: translateY(-3px);
  border-color: var(--ink);
  box-shadow: var(--shadow-md);
}
.audience-tag {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--signatura);
  margin-bottom: 24px;
  display: flex; align-items: center; gap: 8px;
}
.audience-tag::before {
  content: ""; width: 18px; height: 1px; background: var(--signatura);
}
.audience-card h3 { margin-bottom: 14px; }
.audience-card .body {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}
.audience-card .price {
  font-family: var(--serif);
  font-size: 18px;
  border-top: 1px solid var(--rule-soft);
  padding-top: 18px;
}
.audience-card .price .num {
  font-style: italic;
  color: var(--signatura);
}

@media (max-width: 880px) {
  .audience-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   PLANES
   ============================================================ */
.plans {
  background: var(--ink);
  color: var(--cream);
  padding: clamp(80px, 10vw, 140px) 0;
  position: relative;
}
.plans .section-label {
  border-top-color: rgba(255,255,255,0.18);
  color: var(--cream);
}
.plans .section-label .num,
.plans .section-label .label { color: var(--cream); }
.plans .section-intro h2 { color: var(--cream); }
.plans .section-intro .lead { color: rgba(248, 244, 234, 0.7); }

.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.plan {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 36px 32px 32px;
  display: flex; flex-direction: column;
  position: relative;
  transition: border-color .2s ease, background .2s ease;
}
.plan:hover { border-color: rgba(255,255,255,0.3); }
.plan.featured {
  background: var(--cream);
  color: var(--ink);
  border-color: var(--signatura);
}
.plan.featured .plan-name,
.plan.featured ul li,
.plan.featured .plan-cap { color: var(--ink); }
.plan-flag {
  position: absolute;
  top: -1px; right: 24px;
  background: var(--signatura);
  color: var(--cream);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 0 0 4px 4px;
}
.plan-name {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 4px;
  font-style: italic;
}
.plan-cap {
  font-size: 13px;
  color: rgba(248, 244, 234, 0.55);
  margin-bottom: 28px;
}
.plan.featured .plan-cap { color: var(--ink-mute); }
.plan-price {
  font-family: var(--serif);
  display: flex; align-items: baseline; gap: 6px;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  padding-bottom: 24px;
}
.plan.featured .plan-price { border-bottom-color: var(--rule); }
.plan-price .amount {
  font-size: 56px;
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.plan-price .per {
  font-family: var(--sans);
  font-size: 14px;
  color: rgba(248, 244, 234, 0.6);
  font-weight: 500;
}
.plan.featured .plan-price .per { color: var(--ink-mute); }
.plan ul {
  list-style: none;
  padding: 0; margin: 0 0 28px 0;
  display: flex; flex-direction: column; gap: 12px;
  flex-grow: 1;
}
.plan ul li {
  font-size: 14px;
  color: rgba(248, 244, 234, 0.85);
  display: flex; gap: 10px; line-height: 1.5;
}
.plan ul li::before {
  content: ""; flex-shrink: 0;
  width: 16px; height: 16px;
  margin-top: 3px;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23A03B1F' stroke-width='1.5'><path d='M3 8.5l3.2 3.2L13 5'/></svg>") center/contain no-repeat;
}
.plan .btn {
  align-self: stretch;
  justify-content: center;
}
.plan:not(.featured) .btn {
  background: var(--cream); color: var(--ink);
}
.plan:not(.featured) .btn:hover { background: var(--signatura); color: var(--cream); }
.plan.featured .btn { background: var(--ink); color: var(--cream); }
.plan.featured .btn:hover { background: var(--signatura); }

@media (max-width: 960px) {
  .plan-grid { grid-template-columns: 1fr; gap: 14px; }
}

.plans-foot {
  margin-top: 48px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: end;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 28px;
}
.addons {
  display: flex; flex-wrap: wrap; gap: 28px 36px;
  font-size: 13px;
  color: rgba(248, 244, 234, 0.7);
}
.addons strong {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  color: var(--cream);
  font-size: 16px;
  margin-bottom: 4px;
}
.addons .item .price {
  color: var(--signatura);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.commission {
  font-size: 13px;
  color: rgba(248, 244, 234, 0.7);
  text-align: right;
  max-width: 28ch;
  line-height: 1.5;
}
.commission strong {
  display: block;
  color: var(--cream);
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  margin-bottom: 4px;
  font-weight: 500;
}
@media (max-width: 720px) {
  .plans-foot { grid-template-columns: 1fr; }
  .commission { text-align: left; }
}

/* ============================================================
   MOCKUPS DEL PRODUCTO
   ============================================================ */
.mockups {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.mockup {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}
.mockup .mockup-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--rule-soft);
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12px;
  color: var(--ink-mute);
  background: var(--paper);
}
.mockup .mockup-header .label {
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  color: var(--ink);
}
.mockup .mockup-header .dots {
  display: flex; gap: 5px;
}
.mockup .mockup-header .dots span {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--rule);
}
.mockup-body { padding: 24px 24px 28px; min-height: 260px; }

.mockup-ficha { grid-column: span 7; }
.mockup-marketplace { grid-column: span 5; }
.mockup-mobile { grid-column: span 4; }
.mockup-orders { grid-column: span 8; }

@media (max-width: 880px) {
  .mockup-ficha, .mockup-marketplace, .mockup-mobile, .mockup-orders { grid-column: span 12; }
}

/* Ficha de libro */
.ficha {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
}
.ficha .cover {
  aspect-ratio: 2 / 3;
  background: linear-gradient(135deg, #2D3340 0%, #1A1F2C 100%);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px -4px rgba(0,0,0,0.3);
}
.ficha .cover::before {
  content: "";
  position: absolute;
  left: 12%; top: 0; bottom: 0;
  width: 1px;
  background: rgba(255,255,255,0.1);
}
.ficha .cover .cover-title {
  position: absolute;
  inset: 0;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  padding: 24px 18px 18px;
  text-align: center;
  color: var(--cream);
}
.ficha .cover .cover-title .t {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.1;
  font-style: italic;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}
.ficha .cover .cover-title .a {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.7;
}
.ficha .cover .cover-title .e {
  font-family: var(--serif);
  font-size: 9px;
  font-style: italic;
  color: var(--signatura);
  position: absolute;
  bottom: 12px;
  letter-spacing: 0.1em;
}
.ficha .meta .label-tag {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--signatura);
  margin-bottom: 10px;
}
.ficha .meta .title {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.15;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}
.ficha .meta .author {
  font-style: italic;
  font-size: 14px;
  color: var(--ink-mute);
  margin-bottom: 16px;
}
.ficha .meta dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  margin: 0 0 18px 0;
  font-size: 12px;
}
.ficha .meta dt { color: var(--ink-mute); text-transform: uppercase; letter-spacing: 0.1em; font-size: 10px; padding-top: 2px; }
.ficha .meta dd { margin: 0; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.ficha .meta .price-row {
  display: flex; align-items: baseline; gap: 12px;
  border-top: 1px solid var(--rule-soft);
  padding-top: 14px;
}
.ficha .meta .price-row .p {
  font-family: var(--serif);
  font-size: 28px;
  font-style: italic;
  color: var(--signatura);
  font-variant-numeric: tabular-nums;
}
.ficha .meta .price-row .stock {
  font-size: 11px;
  color: var(--verde-papel);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
}
.ficha .meta .price-row .stock::before {
  content: "•"; color: var(--verde-papel); margin-right: 4px;
}

/* Marketplace results */
.marketplace-results {
  display: flex; flex-direction: column; gap: 10px;
}
.marketplace-results .search-bar {
  font-size: 12px;
  color: var(--ink-mute);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 8px 14px;
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 8px;
}
.marketplace-results .search-bar svg { width: 12px; height: 12px; }
.marketplace-results .row {
  display: grid;
  grid-template-columns: 32px 1fr auto auto;
  gap: 12px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 12px;
}
.marketplace-results .row:last-child { border-bottom: 0; }
.marketplace-results .swatch {
  width: 26px; height: 36px;
  background: var(--ink);
  border-radius: 1px;
}
.marketplace-results .swatch.r { background: var(--signatura); }
.marketplace-results .swatch.g { background: var(--verde-papel); }
.marketplace-results .swatch.c { background: #C9A86A; }
.marketplace-results .info .t { font-family: var(--serif); font-style: italic; font-size: 13px; line-height: 1.2; }
.marketplace-results .info .l { font-size: 10px; color: var(--ink-mute); margin-top: 2px; }
.marketplace-results .km { font-size: 10px; color: var(--ink-mute); text-align: right; }
.marketplace-results .pr { font-family: var(--serif); font-style: italic; color: var(--signatura); font-size: 14px; font-variant-numeric: tabular-nums; }

/* Mobile inventory */
.mobile-frame {
  background: var(--ink);
  border-radius: 22px;
  padding: 8px;
  max-width: 220px;
  margin: 0 auto;
}
.mobile-screen {
  background: var(--cream);
  border-radius: 16px;
  padding: 16px 14px;
  min-height: 320px;
}
.mobile-screen .mtop {
  display: flex; justify-content: space-between;
  font-size: 9px; color: var(--ink-mute);
  margin-bottom: 14px;
}
.mobile-screen h4 {
  font-family: var(--serif);
  font-size: 16px;
  font-style: italic;
  margin-bottom: 10px;
}
.mobile-screen .scan-box {
  border: 1px dashed var(--rule);
  border-radius: 8px;
  padding: 18px 12px;
  text-align: center;
  margin-bottom: 14px;
}
.mobile-screen .scan-box .isbn {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.05em;
}
.mobile-screen .scan-box .ok {
  color: var(--verde-papel);
  font-size: 10px;
  margin-top: 6px;
  font-weight: 600;
}
.mobile-screen .ml {
  display: flex; flex-direction: column; gap: 8px;
}
.mobile-screen .ml-row {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  gap: 8px;
  font-size: 10px;
  align-items: center;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule-soft);
}
.mobile-screen .ml-row .sq { width: 18px; height: 24px; background: var(--ink); border-radius: 1px; }
.mobile-screen .ml-row .sq.b { background: var(--signatura); }
.mobile-screen .ml-row .sq.c { background: var(--verde-papel); }
.mobile-screen .ml-row .t { font-family: var(--serif); font-style: italic; font-size: 11px; line-height: 1.1; }
.mobile-screen .ml-row .n { font-variant-numeric: tabular-nums; color: var(--ink-mute); }

/* Orders table */
.orders {
  display: flex; flex-direction: column;
}
.orders .hd {
  display: grid;
  grid-template-columns: 90px 1.4fr 1fr 0.7fr 0.6fr;
  gap: 16px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
  font-weight: 600;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink);
  margin-bottom: 4px;
}
.orders .row {
  display: grid;
  grid-template-columns: 90px 1.4fr 1fr 0.7fr 0.6fr;
  gap: 16px;
  font-size: 13px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule-soft);
  align-items: center;
}
.orders .row:last-child { border-bottom: 0; }
.orders .id { font-family: var(--mono); font-size: 11px; color: var(--ink-mute); }
.orders .book { font-family: var(--serif); font-style: italic; }
.orders .book small { display: block; font-family: var(--sans); font-style: normal; font-size: 11px; color: var(--ink-mute); margin-top: 2px; letter-spacing: 0.06em; text-transform: uppercase; }
.orders .cust { font-size: 12px; }
.orders .am { font-family: var(--serif); font-style: italic; color: var(--signatura); font-variant-numeric: tabular-nums; }
.orders .st {
  font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 600;
  display: inline-block; padding: 3px 8px; border-radius: 999px;
}
.orders .st.pick { background: rgba(63, 90, 78, 0.12); color: var(--verde-papel); }
.orders .st.ship { background: rgba(160, 59, 31, 0.10); color: var(--signatura); }
.orders .st.done { background: rgba(26, 31, 44, 0.08); color: var(--ink-soft); }

/* ============================================================
   QUIÉN HAY DETRÁS
   ============================================================ */
.about {
  background: var(--paper-deep);
}
.about-col {
  max-width: var(--col-narrow);
  margin: 0 auto;
}
.about p {
  font-family: var(--serif);
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.55;
  color: var(--ink);
  margin-bottom: 24px;
}
.about p:first-of-type::first-letter {
  font-family: var(--serif);
  font-size: clamp(48px, 5vw, 72px);
  line-height: 0.9;
  float: left;
  padding: 6px 12px 0 0;
  color: var(--signatura);
  font-style: italic;
  font-weight: 500;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 56px;
  border-top: 1px solid var(--ink);
  padding-top: 32px;
}
.about-stats .it {
  display: flex; flex-direction: column; gap: 4px;
}
.about-stats .it .n {
  font-family: var(--serif);
  font-size: clamp(28px, 2.8vw, 36px);
  font-weight: 500;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.about-stats .it .n .em { font-style: italic; color: var(--signatura); }
.about-stats .it .l {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
  font-weight: 500;
}
@media (max-width: 720px) {
  .about-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   FORMULARIO DE CAPTACIÓN
   ============================================================ */
.signup {
  background: var(--ink);
  color: var(--cream);
  padding: clamp(80px, 10vw, 140px) 0;
}
.signup .section-label { border-top-color: rgba(255,255,255,0.18); }
.signup .section-label .num,
.signup .section-label .label { color: var(--cream); }

.signup-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: start;
}
.signup h2 { color: var(--cream); margin-bottom: 18px; }
.signup h2 .em { font-style: italic; color: var(--signatura); }
.signup-intro {
  color: rgba(248, 244, 234, 0.7);
  margin-bottom: 28px;
  max-width: 42ch;
}
.signup-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 14px;
  font-size: 14px;
  color: rgba(248, 244, 234, 0.85);
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 24px;
}
.signup-list li {
  display: flex; gap: 12px; align-items: baseline;
}
.signup-list li .k {
  font-family: var(--serif);
  font-style: italic;
  color: var(--signatura);
  font-size: 16px;
  min-width: 24px;
  font-variant-numeric: tabular-nums;
}

/* Form */
.form {
  background: var(--cream);
  color: var(--ink);
  padding: 36px 32px;
  border-radius: var(--radius-lg);
}
.form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.form-row.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-row.two .form-row { margin-bottom: 0; }

.form label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.form .req { color: var(--signatura); }
.form .opt {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink-mute);
  font-style: italic;
  font-family: var(--serif);
  font-size: 13px;
  margin-left: 4px;
}

.form input[type="text"],
.form input[type="email"],
.form select,
.form textarea {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 15px;
  color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
  font-family: var(--sans);
}
.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(26, 31, 44, 0.08);
}
.form input.error,
.form select.error {
  border-color: var(--signatura);
  background: rgba(160, 59, 31, 0.04);
}
.form input.error:focus,
.form select.error:focus {
  box-shadow: 0 0 0 3px rgba(160, 59, 31, 0.15);
}

.form textarea { resize: vertical; min-height: 84px; font-family: var(--sans); }
.form select { appearance: none; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%231A1F2C' stroke-width='1.4'><path d='M4 6.5l4 4 4-4'/></svg>"); background-repeat: no-repeat; background-position: right 12px center; background-size: 14px; padding-right: 36px; }

.field-error {
  font-size: 12px;
  color: var(--signatura);
  font-weight: 500;
  min-height: 16px;
  display: block;
}

.checkbox {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 12px;
  margin-bottom: 14px;
  cursor: pointer;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
  align-items: start;
}
.checkbox input[type="checkbox"] {
  appearance: none;
  width: 18px; height: 18px;
  border: 1.5px solid var(--ink);
  background: var(--white);
  border-radius: 3px;
  cursor: pointer;
  margin: 1px 0 0;
  position: relative;
  transition: background .15s;
}
.checkbox input[type="checkbox"]:checked {
  background: var(--ink);
}
.checkbox input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23F8F4EA' stroke-width='2'><path d='M3 8.5l3.2 3.2L13 5'/></svg>") center/12px no-repeat;
}
.checkbox input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--signatura);
  outline-offset: 2px;
}
.checkbox a { color: var(--signatura); border-bottom: 1px solid var(--signatura); text-decoration: none; }

.form .submit {
  margin-top: 8px;
  width: 100%;
  justify-content: center;
  background: var(--ink);
  color: var(--cream);
  padding: 16px 22px;
  font-size: 15px;
}
.form .submit:hover { background: var(--signatura); }
.form .submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.form-status {
  margin-top: 16px;
  font-size: 14px;
  padding: 14px 16px;
  border-radius: var(--radius);
  display: none;
}
.form-status.show { display: block; }
.form-status.success {
  background: rgba(63, 90, 78, 0.1);
  color: var(--verde-papel);
  border-left: 3px solid var(--verde-papel);
}
.form-status.error {
  background: rgba(160, 59, 31, 0.1);
  color: var(--signatura-deep);
  border-left: 3px solid var(--signatura);
}

@media (max-width: 880px) {
  .signup-grid { grid-template-columns: 1fr; }
  .form-row.two { grid-template-columns: 1fr; }
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--ink);
}
.faq-item {
  border-bottom: 1px solid var(--rule);
  padding: 0;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 26px 0;
  display: grid;
  grid-template-columns: 60px 1fr 32px;
  gap: 24px;
  align-items: center;
  font-family: var(--serif);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.2;
  color: var(--ink);
  transition: color .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--signatura); }
.faq-item summary .num {
  font-size: 13px;
  font-style: italic;
  color: var(--ink-mute);
  font-variant-numeric: tabular-nums;
}
.faq-item summary .toggle {
  width: 24px; height: 24px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--sans);
  font-size: 14px;
  font-style: normal;
  color: var(--ink);
  transition: background .2s, color .2s, transform .2s;
}
.faq-item[open] summary .toggle {
  background: var(--ink); color: var(--cream); transform: rotate(45deg);
}
.faq-item .answer {
  padding: 0 56px 28px 84px;
  max-width: 70ch;
  font-size: 16px;
  color: var(--ink-soft);
  line-height: 1.65;
}
@media (max-width: 640px) {
  .faq-item summary { grid-template-columns: 32px 1fr 24px; gap: 12px; }
  .faq-item .answer { padding: 0 0 22px 44px; }
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--ink);
  color: rgba(248, 244, 234, 0.7);
  padding: 80px 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 56px;
}
.footer-grid .brand {
  color: var(--cream);
  font-size: 28px;
  margin-bottom: 12px;
}
.footer-grid .tag {
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  color: rgba(248, 244, 234, 0.6);
  max-width: 28ch;
  line-height: 1.5;
}
.footer-grid h5 {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--cream);
  margin: 0 0 18px 0;
}
.footer-grid ul {
  list-style: none;
  padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
  font-size: 14px;
}
.footer-grid ul li a {
  text-decoration: none;
  color: rgba(248, 244, 234, 0.7);
  transition: color .15s;
}
.footer-grid ul li a:hover { color: var(--signatura); }
.footer-grid address {
  font-style: normal;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(248, 244, 234, 0.6);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 28px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
  font-size: 12px;
  color: rgba(248, 244, 234, 0.45);
}
.footer-bottom .marker { color: var(--signatura); font-style: italic; font-family: var(--serif); }
@media (max-width: 880px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   STICKY MOBILE CTA
   ============================================================ */
.sticky-mobile {
  position: fixed;
  left: 16px; right: 16px; bottom: 16px;
  z-index: 40;
  background: var(--ink);
  color: var(--cream);
  border-radius: 999px;
  padding: 14px 20px;
  display: none;
  align-items: center; justify-content: space-between;
  text-decoration: none;
  font-size: 14px; font-weight: 500;
  box-shadow: 0 12px 32px -8px rgba(26, 31, 44, 0.5);
  transform: translateY(120%);
  transition: transform .35s cubic-bezier(.2,.7,.2,1);
}
.sticky-mobile.show { transform: translateY(0); }
.sticky-mobile .arrow { transition: transform .2s ease; }
.sticky-mobile:active .arrow { transform: translateX(3px); }
@media (max-width: 720px) {
  .sticky-mobile { display: flex; }
}

/* ============================================================
   Skip link / a11y
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100px; left: 12px;
  background: var(--ink); color: var(--cream);
  padding: 12px 18px;
  border-radius: var(--radius);
  z-index: 100;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}
.skip-link:focus { top: 12px; }

:focus-visible {
  outline: 2px solid var(--signatura);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Selection */
::selection {
  background: var(--signatura);
  color: var(--cream);
}