/* =========================================================
   XPANDE — Gestión Financiera · Contable · Control de Activos
   Design tokens derived from the corporate identity manual
   ========================================================= */

:root{
  /* Color */
  --xp-red:        #E60A0A;
  --xp-red-ui:      #FF3B3B;
  --xp-ink:         #0B0D10;
  --xp-graphite:    #1A1D22;
  --xp-carbon:      #2A2E34;
  --xp-silver:      #BEBEBE;
  --xp-white:       #FFFFFF;
  --xp-ice:         #F3F4F6;

  /* Type */
  --font-display: 'Montserrat', sans-serif;
  --font-body:    'Inter', sans-serif;

  /* Spacing (8px base) */
  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 32px;
  --sp-6: 48px;
  --sp-8: 64px;
  --sp-12: 96px;

  /* Layout */
  --container: 1440px;
  --radius-s: 8px;
  --radius-m: 12px;
  --topbar-h: 42px;
  --header-h: 96px;
}

/* ---------- Reset ---------- */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--xp-ink);
  color: var(--xp-ice);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ margin: 0; padding: 0; list-style: none; }
button{ font: inherit; cursor: pointer; }
h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0;
  color: var(--xp-white);
  letter-spacing: -0.01em;
}
p{ margin: 0; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

:focus-visible{
  outline: 2px solid var(--xp-red-ui);
  outline-offset: 3px;
}

/* ---------- Type scale ---------- */
h1, .h1{ font-size: clamp(2.1rem, 1.4rem + 2.6vw, 3rem); line-height: 1.12; }
h2, .h2{ font-size: clamp(1.6rem, 1.3rem + 1.4vw, 2.25rem); line-height: 1.18; }
h3, .h3{ font-size: 1.5rem; line-height: 1.3; }
.lede{ font-size: 1.125rem; line-height: 1.6; color: var(--xp-silver); }
.small{ font-size: 0.875rem; color: var(--xp-silver); }

/* ---------- Layout helpers ---------- */
.container{
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-3);
}
@media (min-width: 768px){ .container{ padding-inline: var(--sp-4); } }
@media (min-width: 1100px){ .container{ padding-inline: var(--sp-8); } }

.section{ padding-block: var(--sp-12); }
.section--tight{ padding-block: var(--sp-8); }
.section--ink{ background: var(--xp-ink); }
.section--graphite{ background: var(--xp-graphite); }
.section--ice{ background: var(--xp-ice); color: var(--xp-carbon); }
.section--ice h2, .section--ice h3{ color: var(--xp-ink); }
.section--ice .lede{ color: #52585f; }

.section-head{
  max-width: 640px;
  margin-bottom: var(--sp-6);
}
.section-head .lede{ margin-top: var(--sp-2); }

.rule{
  width: 64px;
  height: 3px;
  background: var(--xp-red);
  border: 0;
  margin: 0 0 var(--sp-2);
}

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-s);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: background-color 200ms ease, border-color 200ms ease, color 200ms ease, transform 200ms ease;
  white-space: nowrap;
}
.btn:active{ transform: translateY(1px); }
.btn--primary{ background: var(--xp-red); color: var(--xp-white); animation: breathe 2.4s ease-in-out infinite; }
.btn--primary:hover{ background: var(--xp-red-ui); }
.btn--ghost-dark{ border-color: rgba(255,255,255,0.28); color: var(--xp-white); }

@keyframes breathe{
  0%, 100% { box-shadow: 0 0 0 rgba(230,10,10,0.18), 0 0 0 rgba(230,10,10,0.12); transform: scale(1); }
  50% { box-shadow: 0 0 0 10px rgba(230,10,10,0.09), 0 0 18px rgba(230,10,10,0.25); transform: scale(1.03); }
}
.btn--ghost-dark:hover{ border-color: var(--xp-white); background: rgba(255,255,255,0.06); }
.btn--ghost-light{ border-color: rgba(11,13,16,0.25); color: var(--xp-ink); }
.btn--ghost-light:hover{ border-color: var(--xp-ink); background: rgba(11,13,16,0.05); }

/* =========================================================
   Header
   ========================================================= */
.topbar{
  background: #050607;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: 0.8125rem;
  color: var(--xp-silver);
}
.topbar .container{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-1) var(--sp-4);
  padding-block: 10px;
}
.topbar__addresses{ display: flex; gap: var(--sp-3); flex-wrap: wrap; }
.topbar__contact{ display: flex; gap: var(--sp-3); flex-wrap: wrap; }
.topbar-item{ display: inline-flex; align-items: center; gap: 8px; }
.topbar-icon{
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  stroke: var(--xp-red-ui);
  opacity: 0.9;
}
.topbar a:hover{ color: var(--xp-white); }

.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  /* Solid (not translucent+blurred) on purpose: a backdrop-filter here would
     create a containing block for the fixed-position mobile nav panel and
     trap it inside the header's own box instead of the viewport. */
  background: rgba(9,10,13,0.97);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.site-header .container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.brand img{ height: 86.11px; width: auto; }

.nav{ display: flex; align-items: center; gap: var(--sp-6); }
.nav__list{ display: flex; gap: var(--sp-4); }
.nav__list a{
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--xp-silver);
  position: relative;
  padding-block: 4px;
}
.nav__list a:hover{ color: var(--xp-white); }
.nav__list a::after{
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--xp-red);
  transition: right 200ms ease;
}
.nav__list a:hover::after{ right: 0; }

.nav-toggle{
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: transparent; border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-s);
  color: var(--xp-white);
}

@media (max-width: 960px){
  .topbar__addresses{ display: none; }
  .nav__list{
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: var(--xp-ink);
    flex-direction: column;
    gap: 0;
    padding: var(--sp-3);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms ease, transform 200ms ease;
  }
  .nav__list.is-open{ opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav__list li{ border-bottom: 1px solid rgba(255,255,255,0.08); }
  .nav__list a{ display: block; padding: var(--sp-3) var(--sp-1); font-size: 1.05rem; }
  .nav .btn{ display: none; }
  .nav-toggle{ display: inline-flex; }
}

@media (max-width: 430px){
  :root{ --topbar-h: 87px; }
}

/* =========================================================
   Hero
   ========================================================= */
.hero{
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - var(--topbar-h) - var(--header-h));
  min-height: calc(100svh - var(--topbar-h) - var(--header-h));
  padding-block: clamp(var(--sp-8), 12vw, 140px) var(--sp-12);
  background:
    linear-gradient(135deg, rgba(11,13,16,0.42), rgba(11,13,16,0.28)),
    url("../assets/hero-img.jpg") center/cover no-repeat;
}
.hero::before{
  content: "";
  position: absolute;
  top: -20%;
  right: -12%;
  width: 46%;
  height: 150%;
  background:
    linear-gradient(180deg, rgba(230,10,10,0.75) 0%, rgba(88,7,7,0.82) 100%),
    url("../assets/nav-img-hero.jpg") center/cover no-repeat;
  transform: rotate(14deg);
  z-index: 0;
}
.hero--slider{ background: var(--xp-ink); }
.hero--slider::before{ content: none; }
.hero--slider .hero__slides{
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero--slider .hero__slide{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 525ms ease;
}
.hero--slider .hero__slide.is-active{ opacity: 1; }
.hero::after{
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 60% at 12% 20%, rgba(255,255,255,0.05), transparent 60%);
  z-index: 0;
}
.hero--slider::after{
  background: linear-gradient(90deg, rgba(11,13,16,0.58), rgba(11,13,16,0.24) 58%, rgba(11,13,16,0.1));
  z-index: 1;
}
.hero .container{ position: relative; z-index: 1; }
.hero--slider .container{ z-index: 2; }
.hero__content{ max-width: 660px; }
.hero__controls{
  position: absolute;
  right: var(--sp-4);
  bottom: var(--sp-4);
  z-index: 2;
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.hero__arrow{
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255,255,255,0.45);
  border-radius: var(--radius-s);
  background: rgba(11,13,16,0.35);
  color: var(--xp-white);
  transition: background-color 180ms ease, border-color 180ms ease;
}
.hero__arrow:hover{ background: rgba(11,13,16,0.7); border-color: var(--xp-white); }
.hero__arrow svg{ width: 20px; height: 20px; }
.hero__indicators{ display: flex; align-items: center; gap: 8px; }
.hero__indicator{
  width: 24px;
  height: 4px;
  padding: 0;
  border: 0;
  border-radius: 2px;
  background: rgba(255,255,255,0.5);
  transition: background-color 180ms ease;
}
.hero__indicator.is-active{ background: var(--xp-red-ui); }
.hero__arrow:focus-visible, .hero__indicator:focus-visible{ outline-offset: 4px; }
@media (max-width: 700px){
  .hero::before{ right: -18%; width: 55%; opacity: 0.85; }
  .hero__controls{ right: var(--sp-3); bottom: var(--sp-3); gap: var(--sp-1); }
  .hero__arrow{ width: 40px; height: 40px; }
}
@media (prefers-reduced-motion: reduce){
  .hero__slide, .hero__arrow, .hero__indicator{ transition: none; }
}
.hero__eyebrow{
  display: inline-block;
  color: var(--xp-red-ui);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: var(--sp-2);
}
.hero h1{ margin-bottom: var(--sp-3); }
.hero .lede{ max-width: 520px; margin-bottom: var(--sp-4); }
.hero__actions{ display: flex; gap: var(--sp-2); flex-wrap: wrap; }

.hero.is-ready .hero__content{ animation: rise 700ms ease-out both; }
@keyframes rise{
  from{ opacity: 0; transform: translateY(18px); }
  to{ opacity: 1; transform: translateY(0); }
}

/* =========================================================
   Problems
   ========================================================= */
.problems-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--sp-3);
}
.problem-card{
  background: var(--xp-graphite);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-m);
  padding: var(--sp-4);
}
.problem-card__mark{
  display: block;
  width: 34px; height: 2px;
  background: var(--xp-red);
  margin-bottom: var(--sp-2);
}
.problem-card h3{ font-size: 1.125rem; margin-bottom: 6px; }
.problem-card p{ color: var(--xp-silver); font-size: 0.9375rem; }

/* =========================================================
   Solutions
   ========================================================= */
.solutions-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-3);
}
.solution-card{
  background: var(--xp-graphite);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-m);
  padding: var(--sp-4);
  transition: border-color 200ms ease, transform 200ms ease;
}
.solution-card:hover{ border-color: rgba(230,10,10,0.5); transform: translateY(-3px); }
.solution-card__icon{
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-s);
  background: var(--xp-carbon);
  margin-bottom: var(--sp-3);
}
.solution-card__icon svg{ width: 24px; height: 24px; stroke: var(--xp-red-ui); }
.solution-card h3{ font-size: 1.1875rem; margin-bottom: 6px; }
.solution-card p{ color: var(--xp-silver); font-size: 0.9375rem; margin-bottom: var(--sp-2); }
.solution-card__link{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--xp-red-ui);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  position: relative;
  padding-bottom: 3px;
  transition: color 200ms ease;
}
.solution-card__link::after{
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 100%;
  height: 2px;
  background: var(--xp-red-ui);
  transition: right 200ms ease;
}
.solution-card__link:hover{
  color: var(--xp-red);
}
.solution-card__link:hover::after{
  background: var(--xp-red);
  right: 0;
}

/* =========================================================
   Process (Cómo trabajamos)
   ========================================================= */
.process{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-3);
}
.process-step{ position: relative; padding-top: var(--sp-4); }
.process-step::before{
  content: attr(data-step);
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  color: var(--xp-red);
  margin-bottom: var(--sp-1);
}
.process-step h3{ color: var(--xp-ink); font-size: 1.125rem; margin-bottom: 6px; }
.process-step p{ color: #52585f; font-size: 0.9375rem; }
.process-step:not(:last-child)::after{
  content: "";
  position: absolute;
  top: 20px; right: -18px;
  width: 12px; height: 12px;
  border-top: 2px solid var(--xp-red);
  border-right: 2px solid var(--xp-red);
  transform: rotate(45deg);
  display: none;
}
@media (min-width: 900px){
  .process-step:not(:last-child)::after{ display: block; }
}
@media (max-width: 899px){
  .process{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px){
  .process{ grid-template-columns: 1fr; }
}

/* =========================================================
   Trust / principles
   ========================================================= */
.trust{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--sp-8);
  align-items: start;
}
@media (max-width: 900px){ .trust{ grid-template-columns: 1fr; } }

.trust__quote{
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.1rem + 1.2vw, 2rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--xp-white);
}
.trust__quote span{ color: var(--xp-red-ui); }
.trust__signature{ margin-top: var(--sp-4); color: var(--xp-silver); font-size: 0.9375rem; }

.principles{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3) var(--sp-4);
}
.principle{ border-top: 2px solid var(--xp-red); padding-top: var(--sp-1); }
.principle h4{ font-size: 1rem; color: var(--xp-white); margin-bottom: 4px; }
.principle p{ font-size: 0.875rem; color: var(--xp-silver); }

.presence{
  margin-top: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-3);
}
.presence h4{ font-size: 0.95rem; color: var(--xp-red-ui); margin-bottom: 4px; }
.presence p{ color: var(--xp-silver); font-size: 0.9375rem; }

/* =========================================================
   Final CTA + contact
   ========================================================= */
.cta-final{
  position: relative;
  overflow: hidden;
  background: var(--xp-ink);
}
.cta-final::before{
  content:"";
  position: absolute;
  left: -10%; bottom: -60%;
  width: 50%; height: 220%;
  background: linear-gradient(180deg, transparent, var(--xp-red) 55%, #4a0505 100%);
  opacity: 0.5;
  transform: rotate(-16deg);
}
.cta-final .container{ position: relative; z-index: 1; }
.cta-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
  align-items: start;
}
@media (max-width: 900px){ .cta-grid{ grid-template-columns: 1fr; } }

.cta-intro h2{ margin-bottom: var(--sp-2); }
.cta-intro .lede{ margin-bottom: var(--sp-4); }
.cta-contact-list{ display: grid; gap: var(--sp-2); }
.cta-contact-list a{ font-weight: 600; color: var(--xp-white); }
.cta-contact-list a:hover{ color: var(--xp-red-ui); }
.cta-contact-item{ display: inline-flex; align-items: flex-start; gap: 10px; }
.cta-contact-item .topbar-icon{ margin-top: 3px; stroke: var(--xp-white); opacity: 1; }
.cta-contact-list .small{ display: block; }

.form{
  background: var(--xp-graphite);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-m);
  padding: var(--sp-4);
  display: grid;
  gap: var(--sp-2);
}
.form-row{ display: grid; gap: 6px; }
.form-row label{ font-size: 0.8125rem; color: var(--xp-silver); }
.form-row input,
.form-row textarea{
  background: var(--xp-ink);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-s);
  color: var(--xp-white);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  padding: 12px 14px;
  min-height: 44px;
}
.form-row textarea{ min-height: 110px; resize: vertical; }
.form-row input:focus,
.form-row textarea:focus{ outline: none; border-color: var(--xp-red-ui); }
.form-cols{ display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-2); }
@media (max-width: 480px){ .form-cols{ grid-template-columns: 1fr; } }
.form .btn{ width: 100%; margin-top: var(--sp-1); }
.form-note{
  font-size: 0.875rem;
  margin-top: var(--sp-1);
  min-height: 1.2em;
}
.form-note[data-state="ok"]{ color: #6fd08c; }
.form-note[data-state="error"]{ color: var(--xp-red-ui); }

/* =========================================================
   Footer
   ========================================================= */
.site-footer{
  background: #050607;
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-block: var(--sp-8) var(--sp-4);
}
.footer-top{
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: var(--sp-6);
  padding-bottom: var(--sp-6);
}
@media (max-width: 800px){ .footer-top{ grid-template-columns: 1fr; gap: var(--sp-4); } }
.footer-brand img{ height: 46px; margin-bottom: var(--sp-2); }
.footer-brand p{ color: var(--xp-silver); font-size: 0.9375rem; max-width: 320px; }
.footer-col h4{ font-family: var(--font-display); color: var(--xp-white); font-size: 0.9375rem; margin-bottom: var(--sp-2); }
.footer-col ul{ display: grid; gap: 10px; }
.footer-col a, .footer-col p{ color: var(--xp-silver); font-size: 0.9375rem; }
.footer-contact-item{ display: inline-flex; align-items: flex-start; gap: 8px; }
.footer-contact-item .topbar-icon{ margin-top: 2px; }
.footer-col a:hover{ color: var(--xp-white); }
.footer-bottom{
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: var(--sp-3);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-2);
  color: #6a6f76;
  font-size: 0.8125rem;
}

/* =========================================================
   Modal
   ========================================================= */
.modal{
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
}
.modal.is-open{
  display: flex;
  opacity: 1;
  pointer-events: auto;
}
.modal__overlay{
  position: absolute;
  inset: 0;
  background: rgba(11,13,16,0.8);
  backdrop-filter: blur(4px);
}
.modal__content{
  position: relative;
  z-index: 1;
  background: var(--xp-graphite);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-m);
  padding: var(--sp-6);
  max-width: 500px;
  width: 90%;
  animation: slideUp 300ms ease-out;
}
@keyframes slideUp{
  from{ opacity: 0; transform: translateY(20px); }
  to{ opacity: 1; transform: translateY(0); }
}
.modal__close{
  position: absolute;
  top: var(--sp-3);
  right: var(--sp-3);
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-s);
  background: transparent;
  color: var(--xp-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 200ms ease, background-color 200ms ease;
}
.modal__close:hover{
  border-color: var(--xp-red);
  background: rgba(230,10,10,0.1);
}
.modal__close svg{ width: 20px; height: 20px; }
.modal__content h2{
  margin-bottom: var(--sp-4);
  padding-top: var(--sp-2);
}
.modal__buttons{
  display: grid;
  gap: var(--sp-2);
}
.modal-btn{
  display: block;
  padding: var(--sp-3) var(--sp-4);
  background: var(--xp-carbon);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-s);
  color: var(--xp-white);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.9375rem;
  text-align: center;
  transition: background-color 200ms ease, border-color 200ms ease;
}
.modal-btn:hover{
  background: var(--xp-red);
  border-color: var(--xp-red);
}

/* Utility */
.visually-hidden{
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}