/* ============================================================
   SISTEMA DE DISEÑO · María Reina · Marketing B3
   Concepto: Editorial heráldico español · crema + verde + oro
   ============================================================ */

:root {
  /* Paleta — extraída de la insignia heráldica oficial del colegio */
  --cream:        #F5F1E8;
  --cream-deep:   #EDE6D6;
  --ink:          #1A1815;
  --ink-soft:     #3A3530;
  --purple:       #2B2478;
  --purple-deep:  #1E1A56;
  --purple-light: #443EA0;
  --gold:         #E8C84A;
  --gold-deep:    #B89A2E;
  --blue:         #2E7BB8;
  --red:          #E31E24;
  --line:         rgba(26, 24, 21, 0.12);
  --line-strong:  rgba(26, 24, 21, 0.25);

  /* Tipografía */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Manrope', -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  /* Rítmica — basada en 8px */
  --s-1: 0.5rem;   --s-2: 1rem;    --s-3: 1.5rem;
  --s-4: 2rem;     --s-5: 3rem;    --s-6: 4rem;
  --s-7: 6rem;     --s-8: 8rem;    --s-9: 12rem;

  /* Max widths */
  --w-container: 1440px;
  --w-reading:   720px;
  --w-wide:      1160px;
}

/* ------------------------------------------------------------
   Reset + base
   ------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  /* scroll-behavior:smooth eliminado en iter 5 — generaba doble interpolación
     contra Lenis y se sentía como delay al soltar la rueda. */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--cream);
  overflow-x: hidden;
}

/* Textura grain sutil — sensación de papel antiguo */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.35;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.1 0 0 0 0 0.095 0 0 0 0 0.08 0 0 0 0.35 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  mix-blend-mode: multiply;
}

img { display: block; max-width: 100%; height: auto; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }

/* ------------------------------------------------------------
   Tipografía — jerarquía editorial
   ------------------------------------------------------------ */
.display-xl {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(3.5rem, 10vw, 9rem);
  line-height: 0.92;
  letter-spacing: -0.035em;
  font-variation-settings: "opsz" 144, "SOFT" 50;
}
.display-xl em {
  font-style: italic;
  font-weight: 300;
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}

.display-lg {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  font-variation-settings: "opsz" 120, "SOFT" 40;
}
.display-lg em {
  font-style: italic;
  font-weight: 300;
  font-variation-settings: "opsz" 120, "SOFT" 80, "WONK" 1;
}

.display-md {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--purple);
}

.lead {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2vw, 1.625rem);
  line-height: 1.5;
  font-weight: 300;
  color: var(--ink-soft);
}

.mono { font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.05em; }

/* ------------------------------------------------------------
   Layout helpers
   ------------------------------------------------------------ */
.container { max-width: var(--w-container); margin: 0 auto; padding: 0 var(--s-4); position: relative; z-index: 2; }
.reading   { max-width: var(--w-reading); }
.wide      { max-width: var(--w-wide); }
.section   { padding: var(--s-9) 0; position: relative; z-index: 2; }

@media (max-width: 768px) {
  .section { padding: var(--s-7) 0; }
  .container { padding: 0 var(--s-3); }
}

/* ============================================================
   NAV TOP — minimal, fixed
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: var(--s-3) var(--s-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(12px) saturate(1.1);
  background: rgba(245, 241, 232, 0.72);
  border-bottom: 1px solid var(--line);
  transition: padding 0.4s ease;
}
.nav.scrolled { padding: var(--s-2) var(--s-4); }

.nav-brand { display: flex; align-items: center; gap: var(--s-2); font-family: var(--font-display); font-weight: 500; font-size: 1rem; letter-spacing: -0.02em; }
.nav-brand-mark { width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; }
.nav-meta { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--ink-soft); }

@media (max-width: 640px) { .nav-meta { display: none; } }

/* ============================================================
   HERO — fullscreen editorial
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: var(--s-8) 0 var(--s-7);
  overflow: hidden;
}

.hero-number {
  position: absolute;
  right: -3vw;
  bottom: -4vw;
  font-family: var(--font-display);
  font-size: clamp(18rem, 48vw, 42rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--purple);
  opacity: 0.22;
  pointer-events: none;
  z-index: 1;
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
  user-select: none;
}

.hero-inner { position: relative; z-index: 3; width: 100%; }

.hero-heraldic {
  margin-bottom: var(--s-5);
  display: flex;
  align-items: center;
  gap: var(--s-3);
}
.hero-heraldic img { width: 56px; height: auto; }
.hero-heraldic-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--purple);
  line-height: 1.5;
}
.hero-heraldic-text span { display: block; color: var(--ink-soft); font-size: 0.68rem; }

.hero-title {
  margin-bottom: var(--s-4);
  max-width: 14ch;
}

.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.7vw, 1.45rem);
  font-weight: 300;
  font-style: italic;
  color: var(--ink-soft);
  max-width: 40ch;
  line-height: 1.5;
  margin-bottom: var(--s-6);
  font-variation-settings: "opsz" 72, "SOFT" 80;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--s-3) var(--s-5);
  max-width: 780px;
  padding-top: var(--s-4);
  border-top: 1px solid var(--line-strong);
}
.hero-meta-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 4px;
}
.hero-meta-value {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.hero-scroll {
  position: absolute;
  bottom: var(--s-4);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: var(--s-1);
  z-index: 3;
}
.hero-scroll::after {
  content: "";
  display: block;
  width: 1px;
  height: 32px;
  background: var(--ink-soft);
  animation: scrollLine 2s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scrollLine {
  0%, 100% { transform: scaleY(0.3); opacity: 0.4; }
  50%      { transform: scaleY(1);   opacity: 1;   }
}

/* ============================================================
   DIVISOR heráldico
   ============================================================ */
.divider-heraldic {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  max-width: var(--w-wide);
  margin: 0 auto;
}
.divider-heraldic::before,
.divider-heraldic::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}
.divider-heraldic svg { width: 20px; height: 20px; color: var(--gold-deep); flex-shrink: 0; }

/* ============================================================
   PREÁMBULO — drop cap editorial
   ============================================================ */
.preamble { background: var(--cream); }
.preamble-text {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.3vw, 2rem);
  line-height: 1.45;
  font-weight: 300;
  color: var(--ink);
  letter-spacing: -0.01em;
  font-variation-settings: "opsz" 100, "SOFT" 30;
}
.preamble-text em {
  font-style: italic;
  color: var(--purple);
  font-variation-settings: "opsz" 100, "SOFT" 80, "WONK" 1;
}
.preamble-text .dropcap {
  float: left;
  font-size: 5.5em;
  line-height: 0.85;
  padding: 0.1em 0.12em 0 0;
  font-weight: 400;
  color: var(--purple);
  font-style: italic;
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}

.preamble-signature {
  margin-top: var(--s-6);
  padding-top: var(--s-4);
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: var(--s-3);
}
.preamble-sig-name { font-family: var(--font-display); font-weight: 500; font-size: 1.05rem; }
.preamble-sig-role { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--ink-soft); margin-top: 2px; }

/* ============================================================
   DIAGNÓSTICO — grid asimétrico con fotos actuales
   ============================================================ */
.diagnostico {
  background: var(--cream-deep);
  position: relative;
}

.diag-header {
  margin-bottom: var(--s-7);
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--s-5);
  align-items: end;
}
@media (max-width: 880px) { .diag-header { grid-template-columns: 1fr; } }

.diag-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--s-4);
  margin-bottom: var(--s-5);
}
@media (max-width: 880px) { .diag-grid { grid-template-columns: 1fr; } }

.diag-card {
  position: relative;
  overflow: hidden;
  background: var(--ink);
}
.diag-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.diag-card:hover img { transform: scale(1.04); }
.diag-card-tall   { aspect-ratio: 3/4; grid-row: span 2; }
.diag-card-wide   { aspect-ratio: 4/3; }
.diag-card-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--s-5) var(--s-3) var(--s-3);
  background: linear-gradient(0deg, rgba(10,8,5,0.92) 20%, transparent);
  color: var(--cream);
}
.diag-caption-number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 6px;
}
.diag-caption-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

/* ============================================================
   LETRERO SECTION
   ============================================================ */
.letrero {
  background: var(--cream);
  position: relative;
  border-top: 1px solid var(--line);
}

.letrero-index {
  font-family: var(--font-display);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(7rem, 16vw, 14rem);
  line-height: 0.85;
  color: var(--purple);
  opacity: 0.08;
  position: absolute;
  top: var(--s-6);
  right: 4vw;
  pointer-events: none;
  z-index: 1;
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
  user-select: none;
}

.letrero-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-4);
  align-items: baseline;
  margin-bottom: var(--s-6);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--line-strong);
}
.letrero-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: var(--purple);
  font-weight: 500;
}

.letrero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-5);
  align-items: start;
}
@media (max-width: 960px) { .letrero-grid { grid-template-columns: 1fr; } }

.letrero-visual {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--ink);
  overflow: hidden;
}
.letrero-visual img { width: 100%; height: 100%; object-fit: cover; }
.letrero-visual-label {
  position: absolute;
  top: var(--s-2);
  left: var(--s-2);
  padding: 6px 12px;
  background: rgba(10, 8, 5, 0.75);
  backdrop-filter: blur(8px);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-left: 2px solid var(--gold);
}

/* Mockup del letrero (SVG) */
.letrero-mockup {
  position: relative;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #e8e2d0 0%, #d6cfba 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s-4);
}
.letrero-mockup::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 30%, rgba(255,255,255,0.4), transparent 60%);
}
.letrero-mockup-label {
  position: absolute;
  top: var(--s-2);
  left: var(--s-2);
  padding: 6px 12px;
  background: var(--purple);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-left: 2px solid var(--gold);
  z-index: 2;
}
.letrero-mockup svg { width: 100%; max-width: 520px; height: auto; filter: drop-shadow(0 20px 40px rgba(0,0,0,0.2)); position: relative; z-index: 1; }

.letrero-info { padding-top: var(--s-2); }
.letrero-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 2.8vw, 2.25rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--s-3);
  font-variation-settings: "opsz" 100, "SOFT" 30;
}
.letrero-title em { font-style: italic; color: var(--purple); font-variation-settings: "opsz" 100, "SOFT" 80, "WONK" 1; }

.letrero-desc {
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--ink-soft);
  margin-bottom: var(--s-4);
}

.letrero-specs {
  border-top: 1px solid var(--line);
  padding-top: var(--s-3);
  display: grid;
  gap: var(--s-2);
}
.spec-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--s-3);
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  align-items: start;
}
.spec-row:last-child { border-bottom: none; }
@media (max-width: 480px) {
  .spec-row { grid-template-columns: 1fr; gap: 4px; }
}
.spec-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--purple);
  padding-top: 2px;
}
.spec-value { font-size: 0.95rem; color: var(--ink); line-height: 1.5; }
.spec-value strong { font-weight: 600; }

/* Letrero 03 — hero layout especial */
.letrero.letrero-hero .letrero-grid {
  grid-template-columns: 1.15fr 1fr;
}
.letrero.letrero-hero .letrero-mockup {
  aspect-ratio: 16/9;
  /* Aislar pintura: el filtro feGaussianBlur del signGlow no obliga al
     navegador a recomponer áreas grandes durante el scroll. */
  contain: layout paint;
  transform: translateZ(0); /* Forzar capa de composición GPU */
}
@media (max-width: 960px) {
  .letrero.letrero-hero .letrero-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   PROCESO — craftsmanship
   ============================================================ */
.proceso {
  background: var(--purple-deep);
  color: var(--cream);
  position: relative;
}
.proceso::before {
  content: "";
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 0.95 0 0 0 0 0.85 0 0 0 0.18 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  pointer-events: none;
  opacity: 0.5;
}
.proceso .eyebrow { color: var(--gold); }
.proceso-title { color: var(--cream); margin-bottom: var(--s-6); }
.proceso-title em { color: var(--gold); font-style: italic; }

.proceso-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-4);
  margin-top: var(--s-5);
}
@media (max-width: 960px) { .proceso-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .proceso-grid { grid-template-columns: 1fr; } }

.proc-step {
  padding: var(--s-4) var(--s-3);
  border-top: 1px solid rgba(201, 169, 97, 0.25);
  position: relative;
}
.proc-step-num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: 3.5rem;
  line-height: 1;
  color: var(--gold);
  margin-bottom: var(--s-3);
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}
.proc-step-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: var(--s-2);
  color: var(--cream);
}
.proc-step-desc {
  font-size: 0.92rem;
  line-height: 1.6;
  color: rgba(245, 241, 232, 0.75);
}

/* ============================================================
   GARANTÍA — respaldo institucional, tono editorial
   ============================================================ */
.garantia { background: var(--cream); position: relative; }

.garantia-intro {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--s-5);
  margin-bottom: var(--s-7);
  align-items: end;
}
@media (max-width: 880px) { .garantia-intro { grid-template-columns: 1fr; } }

.garantia-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-4);
}
@media (max-width: 880px) { .garantia-grid { grid-template-columns: 1fr; } }

.garantia-card {
  padding: var(--s-4) var(--s-3);
  border-top: 1px solid var(--gold-deep);
  background: transparent;
}
.garantia-card-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: var(--s-2);
}
.garantia-card-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.45;
  color: var(--ink);
  letter-spacing: -0.005em;
  font-variation-settings: "opsz" 100, "SOFT" 40;
}
.garantia-arrow {
  display: inline-block;
  margin: 0 0.25em;
  color: var(--gold-deep);
  font-style: normal;
}

/* Stagger en las 3 mini-cards */
.garantia-grid > .garantia-card.fade-up:nth-child(1) { transition-delay: 0ms; }
.garantia-grid > .garantia-card.fade-up:nth-child(2) { transition-delay: 120ms; }
.garantia-grid > .garantia-card.fade-up:nth-child(3) { transition-delay: 240ms; }

/* ============================================================
   INVERSIÓN — desglose editorial
   ============================================================ */
.inversion { background: var(--cream-deep); position: relative; }

.inv-intro {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--s-5);
  margin-bottom: var(--s-6);
  align-items: end;
}
@media (max-width: 880px) { .inv-intro { grid-template-columns: 1fr; } }

.inv-table {
  border-top: 2px solid var(--ink);
  margin-bottom: var(--s-4);
}
.inv-row {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: var(--s-4);
  padding: var(--s-4) 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.inv-row-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--purple);
  letter-spacing: 0.15em;
  padding-top: 6px;
}
.inv-row-detail h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.inv-row-detail p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.5;
  max-width: 55ch;
}
.inv-row-price {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
  text-align: right;
}

.inv-totals {
  margin-top: var(--s-4);
  padding-top: var(--s-4);
  border-top: 2px solid var(--ink);
  display: grid;
  gap: var(--s-2);
}
.inv-total-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s-3);
  padding: 10px 0;
  align-items: baseline;
}
.inv-total-row.subtotal .label { font-family: var(--font-mono); font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); }
.inv-total-row.subtotal .value { font-family: var(--font-display); font-size: 1.15rem; color: var(--ink-soft); }

.inv-total-row.grand {
  margin-top: var(--s-2);
  padding: var(--s-3) 0;
  border-top: 1px solid var(--ink);
  border-bottom: 3px double var(--ink);
}
.inv-total-row.grand .label {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
  font-style: italic;
  color: var(--purple);
  letter-spacing: -0.01em;
  font-variation-settings: "opsz" 100, "SOFT" 80, "WONK" 1;
}
.inv-total-row.grand .value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.02em;
  font-variation-settings: "opsz" 144, "SOFT" 30;
}

.inv-notes {
  margin-top: var(--s-5);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-4);
}
@media (max-width: 760px) { .inv-notes { grid-template-columns: 1fr; } }
.inv-note { padding: var(--s-3); border-left: 2px solid var(--gold-deep); }
.inv-note-title { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--purple); margin-bottom: 6px; }
.inv-note-text { font-size: 0.92rem; line-height: 1.55; color: var(--ink-soft); }

/* ============================================================
   CTA FINAL
   ============================================================ */
.cta {
  background: var(--purple-deep);
  color: var(--cream);
  padding: var(--s-9) 0;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 40%, rgba(201,169,97,0.12), transparent 60%);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 2; text-align: center; }
.cta .eyebrow { color: var(--gold); }
.cta-title { color: var(--cream); margin: var(--s-3) 0 var(--s-5); max-width: 18ch; margin-left: auto; margin-right: auto; }
.cta-title em { color: var(--gold); font-style: italic; }

.cta-actions {
  display: flex;
  gap: var(--s-3);
  justify-content: center;
  margin-top: var(--s-5);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 18px 32px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  transition: transform 0.2s cubic-bezier(0.2, 0.8, 0.2, 1),
              box-shadow 0.2s cubic-bezier(0.2, 0.8, 0.2, 1),
              background 0.2s ease,
              color 0.2s ease,
              border-color 0.2s ease;
  border: 1px solid transparent;
  will-change: transform;
}
.btn-primary { background: var(--gold); color: var(--purple-deep); }
.btn-primary:hover {
  background: var(--cream);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 16px 36px rgba(0,0,0,0.35);
}
.btn-secondary {
  background: transparent;
  color: var(--cream);
  border-color: rgba(245, 241, 232, 0.35);
}
.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 16px 36px rgba(0,0,0,0.35);
}
.btn-arrow { transition: transform 0.3s ease; }
.btn:hover .btn-arrow { transform: translateX(4px); }

.cta-contact {
  margin-top: var(--s-6);
  padding-top: var(--s-5);
  border-top: 1px solid rgba(201, 169, 97, 0.25);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-4);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
@media (max-width: 760px) { .cta-contact { grid-template-columns: 1fr; } }
.contact-item .label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 6px;
}
.contact-item .value { font-family: var(--font-display); font-size: 1rem; color: var(--cream); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--ink);
  color: rgba(245, 241, 232, 0.6);
  padding: var(--s-4) 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--s-2); }

/* Heráldica decorativa centrada sobre el texto del footer */
.footer-heraldic {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: var(--s-3);
  opacity: 0.6;
}
.footer-heraldic img {
  width: 40px;
  height: auto;
  display: block;
}

/* ============================================================
   SECCIÓN DE TRANSICIÓN — bridge entre diagnóstico y letreros
   ============================================================ */
.transition-line {
  background: var(--cream);
  padding: var(--s-9) 0;
  text-align: center;
}
.transition-text {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.75rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 300;
  color: var(--purple);
  font-variation-settings: "opsz" 144, "SOFT" 60;
  max-width: 22ch;
  margin: 0 auto;
}
@media (max-width: 768px) {
  .transition-line { padding: var(--s-7) 0; }
}

/* ============================================================
   STAGGER de entrada — cards diagnóstico + pasos del método
   El observer hace todos visibles a la vez si entran juntos al viewport;
   transition-delay genera el efecto cascada controlado.
   ============================================================ */
.diag-grid > .diag-card.fade-up:nth-child(1) { transition-delay: 0ms; }
.diag-grid > .diag-card.fade-up:nth-child(2) { transition-delay: 120ms; }
.diag-grid > .diag-card.fade-up:nth-child(3) { transition-delay: 240ms; }

.proceso-grid > .proc-step.fade-up:nth-child(1) { transition-delay: 0ms; }
.proceso-grid > .proc-step.fade-up:nth-child(2) { transition-delay: 120ms; }
.proceso-grid > .proc-step.fade-up:nth-child(3) { transition-delay: 240ms; }
.proceso-grid > .proc-step.fade-up:nth-child(4) { transition-delay: 360ms; }

.inv-table > .inv-row.fade-up:nth-child(1) { transition-delay: 0ms; }
.inv-table > .inv-row.fade-up:nth-child(2) { transition-delay: 120ms; }
.inv-table > .inv-row.fade-up:nth-child(3) { transition-delay: 240ms; }
.inv-table > .inv-row.fade-up:nth-child(4) { transition-delay: 360ms; }

/* Cierre de capítulo bajo el bloque inv-totals — centrado, ancho contenido.
   Vive fuera de inv-totals para no heredar la alineación derecha del precio. */
.inv-grand-caption {
  margin: var(--s-5) auto 0;
  max-width: 60ch;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  font-style: italic;
  line-height: 1.55;
  color: var(--ink-soft);
  text-align: center;
  font-variation-settings: "opsz" 72, "SOFT" 60;
}

/* Firma humana antes del CTA — Fraunces italic, contenida.
   Compuesta de dos líneas (Braulio + Estefany) con spacing acotado. */
.cta-signature {
  margin-top: var(--s-5);
  margin-bottom: var(--s-3);
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: center;
}
.cta-signature p {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  font-style: italic;
  font-weight: 300;
  color: rgba(245, 241, 232, 0.85);
  letter-spacing: 0.005em;
  line-height: 1.4;
  font-variation-settings: "opsz" 72, "SOFT" 80, "WONK" 1;
}

/* ============================================================
   ANIMACIONES — IntersectionObserver (reemplaza GSAP/Lenis)
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
  will-change: auto;
}

/* Si el usuario prefiere reduced motion, mostrar todo sin animar */
@media (prefers-reduced-motion: reduce) {
  .fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-scroll::after { animation: none; }
}

/* ============================================================
   PARALLAX — scroll-driven animations (CSS nativo, cero JS)
   Reintroduce el parallax sutil sin frame loop ni listener de scroll.
   El navegador lo compone en GPU y solo actualiza cuando hay scroll real.
   Caída elegante: navegadores sin soporte muestran el estado inicial.
   ============================================================ */
@supports (animation-timeline: view()) {
  .hero-number {
    animation: parallaxUp15 linear both;
    animation-timeline: view();
    animation-range: cover 0% cover 100%;
  }
  .letrero-index {
    animation: parallaxUp30 linear both;
    animation-timeline: view();
    animation-range: cover 0% cover 100%;
  }
  @keyframes parallaxUp15 { to { transform: translateY(-15%); } }
  @keyframes parallaxUp30 { to { transform: translateY(-30%); } }
}

/* Si reduced-motion está activo, anular el parallax también */
@media (prefers-reduced-motion: reduce) {
  .hero-number,
  .letrero-index { animation: none; }
}

/* ============================================================
   LOGO HEADER — img real + placeholder dashed (fallback onerror)
   ============================================================ */
.nav-brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.nav-logo {
  height: 40px;
  width: auto;
  display: block;
}
@media (max-width: 640px) {
  .nav-logo { height: 36px; }
}

/* ============================================================
   ACCESIBILIDAD — focus-visible + skip-link
   ============================================================ */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--purple-deep);
  color: var(--cream);
  padding: 8px 16px;
  z-index: 200;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: top 200ms;
}
.skip-link:focus { top: 0; }

/* Selección de texto */
::selection { background: var(--purple); color: var(--cream); }

/* ============================================================
   PRINT — versión imprimible legible y económica en tinta
   ============================================================ */
@media print {
  /* Ocultar lo que no aporta en papel */
  .nav,
  .skip-link,
  .hero-scroll,
  .hero-number,
  .letrero-index,
  .cta-actions,
  .cta-contact,
  .footer-heraldic {
    display: none !important;
  }

  /* Forzar fondos blancos para no quemar tinta */
  body,
  body::before,
  .hero, .preamble, .diagnostico, .transition-line,
  .letrero, .proceso, .garantia, .inversion, .cta, .footer {
    background: #ffffff !important;
    color: #000000 !important;
  }

  /* Quitar overlays decorativos */
  .proceso::before, .cta::before { display: none !important; }

  /* Mostrar URLs de los enlaces */
  a[href^="http"]::after,
  a[href^="mailto"]::after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    color: #555;
    word-break: break-all;
  }

  /* Sin animaciones en impresión */
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    transform: none !important;
  }

  /* Page break inteligente */
  section, .letrero, .inv-row, .garantia-card, .proc-step {
    page-break-inside: avoid;
  }

  /* Asegurar que .fade-up sea visible en print aunque no haya disparado el observer */
  .fade-up { opacity: 1 !important; }
}