/* ==========================================================================
   ValePhar — landing
   Paleta editorial cálida (no el azul/morado genérico de SaaS):
   papel crema + tinta verde bosque + coral como acento único de acción.
   ========================================================================== */

:root{
  --paper:      #F6F1E6;
  --paper-2:    #FFFDF8;
  --ink:        #17261B;
  --ink-2:      #2E4432;
  --ink-soft:   #4C5F51;
  --accent:     #FF5A36;
  --accent-ink: #4A1B0E;
  --line:       rgba(23,38,27,.14);
  --line-soft:  rgba(23,38,27,.08);

  --serif: "Fraunces", ui-serif, Georgia, serif;
  --sans:  "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, monospace;

  --wrap: 1180px;
  --radius: 18px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
.hide-mobile{ display:inline; }

.wrap{
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 28px;
}

/* subtle paper grain, pure CSS, no asset */
.grain{
  position:fixed; inset:0; pointer-events:none; z-index:999;
  opacity:.035; mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- type helpers ---------- */
.eyebrow{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 14px;
  font-weight:500;
}
.eyebrow--light{ color:#FFB199; }

.section__title{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(28px,4vw,44px);
  line-height:1.12;
  letter-spacing:-.01em;
  margin:0 0 48px;
  max-width:16ch;
}
.section__title--light{ color:var(--paper-2); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--ink);
  color:var(--paper-2);
  font-family:var(--sans);
  font-weight:600;
  font-size:15px;
  padding:14px 26px;
  border-radius:100px;
  border:1px solid var(--ink);
  cursor:pointer;
  transition:transform .35s cubic-bezier(.16,1,.3,1), background .25s, color .25s, box-shadow .35s;
  white-space:nowrap;
}
.btn:hover{
  background:var(--accent);
  border-color:var(--accent);
  transform:translateY(-2px);
  box-shadow:0 10px 24px -8px rgba(255,90,54,.55);
}
.btn--sm{ padding:10px 20px; font-size:14px; }
.btn--wide{ width:100%; justify-content:center; padding:15px; }
.btn--outline{
  background:transparent;
  color:var(--ink);
  border-color:var(--line);
}
.btn--outline:hover{
  background:var(--ink);
  color:var(--paper-2);
  border-color:var(--ink);
  box-shadow:none;
}

/* ==========================================================================
   WHATSAPP FLOTANTE
   ========================================================================== */
.wa-float{
  position:fixed;
  right:24px; bottom:24px;
  z-index:90;
  width:52px; height:52px;
  border-radius:50%;
  background:var(--ink);
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 12px 26px -8px rgba(23,38,27,.45);
  transition:transform .3s cubic-bezier(.16,1,.3,1), background .25s;
  animation:wa-in .5s cubic-bezier(.16,1,.3,1) .6s both;
}
.wa-float svg{ width:24px; height:24px; fill:var(--paper-2); }
.wa-float:hover{ background:#25D366; transform:translateY(-3px) scale(1.05); }
@keyframes wa-in{ from{ opacity:0; transform:translateY(16px) scale(.8);} to{ opacity:1; transform:none;} }

/* ==========================================================================
   NAV
   ========================================================================== */
.nav{
  position:sticky; top:0; z-index:100;
  padding:18px 0;
  transition:padding .3s ease, background .3s ease, box-shadow .3s ease;
}
.nav.is-scrolled{
  padding:12px 0;
  background:rgba(246,241,230,.82);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 1px 0 var(--line);
}
.nav__row{ display:flex; align-items:center; gap:32px; }
.nav__logo{
  font-family:var(--serif);
  font-weight:600;
  font-size:21px;
  letter-spacing:-.01em;
  margin-right:auto;
}
.nav__logo span{ color:var(--accent); }

.nav__links{ display:flex; gap:28px; font-size:14.5px; font-weight:500; }
.nav__links a{ position:relative; padding:4px 0; }
.nav__links a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:1.5px;
  background:var(--accent); transform:scaleX(0); transform-origin:right;
  transition:transform .3s ease;
}
.nav__links a:hover::after{ transform:scaleX(1); transform-origin:left; }

.nav__actions{ display:flex; align-items:center; gap:20px; }
.nav__ghost{ font-size:14.5px; font-weight:500; color:var(--ink-soft); }
.nav__ghost:hover{ color:var(--ink); }

.nav__burger{ display:none; background:none; border:0; width:32px; height:22px; position:relative; cursor:pointer; padding:0; }
.nav__burger span{ position:absolute; left:0; right:0; height:2px; background:var(--ink); transition:transform .3s, opacity .3s; }
.nav__burger span:nth-child(1){ top:0; }
.nav__burger span:nth-child(2){ top:10px; }
.nav__burger span:nth-child(3){ top:20px; }

.nav__sheet{
  display:none;
  flex-direction:column;
  gap:2px;
  padding:8px 28px 20px;
  font-size:16px;
  font-weight:500;
}
.nav__sheet a{ padding:12px 0; border-bottom:1px solid var(--line-soft); }
.nav__sheet .btn{ margin-top:14px; text-align:center; justify-content:center; }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:40px;
  align-items:center;
  padding:64px 28px 96px;
}
.hero__title{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(38px,5.4vw,68px);
  line-height:1.04;
  letter-spacing:-.015em;
  margin:0 0 26px;
}
.hero__title em{ font-style:italic; color:var(--accent); font-weight:500; }

.hero__sub{
  font-size:17px;
  color:var(--ink-soft);
  max-width:46ch;
  margin:0 0 36px;
}
.hero__cta{ display:flex; gap:14px; flex-wrap:wrap; }

/* --- hero mock card --- */
.hero__art{ position:relative; }
.mock{
  position:relative;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 22px 20px;
  box-shadow:0 30px 60px -25px rgba(23,38,27,.35);
  transform:rotate(2.5deg);
  transition:transform .5s cubic-bezier(.16,1,.3,1);
  font-family:var(--mono);
  z-index:2;
}
.hero__art:hover .mock{ transform:rotate(0deg) translateY(-4px); }
.mock__bar{ display:flex; gap:6px; margin-bottom:16px; }
.mock__bar span{ width:9px; height:9px; border-radius:50%; background:var(--line); }
.mock__bar span:nth-child(1){ background:#FF5A36; }
.mock__bar span:nth-child(2){ background:#F2B705; }
.mock__bar span:nth-child(3){ background:#3F8F5F; }

.mock__row{
  display:grid;
  grid-template-columns:1.6fr .8fr .7fr .6fr;
  gap:8px;
  font-size:12.5px;
  padding:9px 0;
  border-bottom:1px solid var(--line-soft);
}
.mock__row--head{
  color:var(--ink-soft);
  text-transform:uppercase;
  font-size:10.5px;
  letter-spacing:.04em;
}
.mock__row--warn span:nth-child(3){ color:var(--accent); font-weight:600; }
.mock__total{
  display:flex; justify-content:space-between; align-items:baseline;
  padding-top:14px; font-family:var(--sans);
}
.mock__total strong{ font-family:var(--serif); font-size:22px; }
.mock__tag{
  margin-top:14px;
  background:var(--ink);
  color:var(--paper-2);
  font-size:11px;
  padding:8px 12px;
  border-radius:8px;
  display:flex; justify-content:space-between;
}

.mock__badge{
  position:absolute;
  top:-14px; right:18px;
  background:var(--accent);
  color:#fff;
  font-family:var(--mono);
  font-size:11px;
  padding:7px 13px;
  border-radius:100px;
  z-index:3;
  box-shadow:0 8px 18px -6px rgba(255,90,54,.6);
  animation:float 4s ease-in-out infinite;
}
.mock__blob{
  position:absolute;
  width:340px; height:340px;
  right:-60px; top:-40px;
  background:radial-gradient(circle at 30% 30%, rgba(63,143,95,.28), transparent 70%);
  filter:blur(6px);
  z-index:1;
  animation:blob 9s ease-in-out infinite;
}
@keyframes float{ 0%,100%{ transform:translateY(0);} 50%{ transform:translateY(-7px);} }
@keyframes blob{ 0%,100%{ transform:scale(1) translate(0,0);} 50%{ transform:scale(1.08) translate(-14px,10px);} }

/* ==========================================================================
   TICKER
   ========================================================================== */
.ticker{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  padding:16px 0;
  background:var(--paper-2);
}
.ticker__track{
  display:flex;
  gap:14px;
  white-space:nowrap;
  width:max-content;
  font-family:var(--mono);
  font-size:13.5px;
  color:var(--ink-soft);
  animation:scroll 32s linear infinite;
}
.ticker__track span:nth-child(2n){ color:var(--accent); }
@keyframes scroll{ from{ transform:translateX(0);} to{ transform:translateX(-50%);} }

/* ==========================================================================
   PROBLEMA (dark band)
   ========================================================================== */
.problema{
  background:var(--ink);
  color:var(--paper-2);
  padding:96px 0;
}
.problema__title{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(26px,3.6vw,38px);
  line-height:1.24;
  max-width:26ch;
  margin:0 0 56px;
}
.problema__grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:rgba(255,253,248,.14);
  border-radius:var(--radius);
  overflow:hidden;
}
.pcard{
  background:var(--ink);
  padding:32px 28px 36px;
}
.pcard__n{
  display:block;
  font-family:var(--mono);
  color:var(--accent);
  font-size:13px;
  margin-bottom:18px;
}
.pcard p{ margin:0; font-size:16.5px; line-height:1.5; color:#E7E4DA; }
.pcard p em{ color:var(--paper-2); font-style:normal; font-weight:600; }

/* ==========================================================================
   MÓDULOS
   ========================================================================== */
.modulos{ padding:110px 28px 100px; }

.mlist{ border-top:1px solid var(--line); }
.mrow{
  display:grid;
  grid-template-columns:90px 1fr;
  gap:28px;
  padding:34px 0;
  border-bottom:1px solid var(--line);
  transition:background .3s ease;
}
.mrow:hover{ background:rgba(23,38,27,.03); }
.mrow__n{
  font-family:var(--mono);
  font-size:14px;
  color:var(--accent);
  padding-top:6px;
}
.mrow__body h3{
  font-family:var(--serif);
  font-weight:500;
  font-size:23px;
  margin:0 0 10px;
}
.mrow__body p{
  margin:0;
  max-width:62ch;
  color:var(--ink-soft);
  font-size:15.5px;
}

/* ==========================================================================
   CÓMO FUNCIONA (dark band)
   ========================================================================== */
.funciona{ background:var(--ink-2); color:var(--paper-2); padding:100px 0; }
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
}
.step__n{
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px;
  border:1px solid rgba(255,253,248,.35);
  border-radius:50%;
  font-family:var(--mono);
  font-size:14px;
  margin-bottom:22px;
}
.step h3{ font-family:var(--serif); font-weight:500; font-size:19px; margin:0 0 10px; }
.step p{ margin:0; font-size:14.5px; color:#D9DCD2; line-height:1.5; }

/* ==========================================================================
   CUMPLIMIENTO
   ========================================================================== */
.cumplimiento{ padding:110px 28px; }
.cgrid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.ccard{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px 28px;
}
.ccard h3{
  font-family:var(--serif);
  font-size:21px;
  font-weight:500;
  margin:0 0 12px;
}
.ccard p{ margin:0; color:var(--ink-soft); font-size:15px; }

/* ==========================================================================
   DEMO / CTA
   ========================================================================== */
.demo{ background:var(--ink); color:var(--paper-2); padding:110px 0; }
.demo__wrap{
  display:grid;
  grid-template-columns:1fr .95fr;
  gap:60px;
  align-items:start;
}
.demo__sub{ color:#D9DCD2; font-size:16px; max-width:44ch; margin-top:18px; }

.demo__form{
  background:var(--paper-2);
  color:var(--ink);
  border-radius:var(--radius);
  padding:32px;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.field{ display:flex; flex-direction:column; gap:7px; }
.field label{ font-size:13px; font-weight:600; color:var(--ink-soft); }
.field input{
  font-family:var(--sans);
  font-size:15px;
  padding:12px 14px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink);
  outline:none;
  transition:border-color .2s, box-shadow .2s;
}
.field input:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(255,90,54,.15);
}
.demo__note{
  margin:2px 0 0;
  font-size:12.5px;
  text-align:center;
  color:var(--ink-soft);
}
.demo__note.is-success{ color:#2E7D4F; font-weight:600; }

.demo__wa{
  display:block;
  text-align:center;
  font-size:13.5px;
  font-weight:600;
  color:var(--ink-soft);
  margin-top:2px;
}
.demo__wa:hover{ color:var(--accent); }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer{ padding:44px 0 60px; }
.footer__row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.footer__row p{ margin:0; font-size:13.5px; color:var(--ink-soft); }
.footer__links{ display:flex; gap:20px; font-size:13.5px; font-weight:500; }
.footer__links a:hover{ color:var(--accent); }

/* ==========================================================================
   SCROLL REVEAL
   ========================================================================== */
[data-reveal]{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);
}
[data-reveal].is-visible{ opacity:1; transform:translateY(0); }
[data-reveal-delay="1"]{ transition-delay:.1s; }
[data-reveal-delay="2"]{ transition-delay:.2s; }
[data-reveal-delay="3"]{ transition-delay:.3s; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:920px){
  .nav__links, .nav__actions{ display:none; }
  .nav__burger{ display:block; }
  .nav__sheet.is-open{ display:flex; }

  .hero{ grid-template-columns:1fr; padding-top:40px; }
  .hero__art{ order:-1; max-width:420px; margin:0 auto 20px; }

  .problema__grid{ grid-template-columns:1fr; }
  .steps{ grid-template-columns:1fr 1fr; }
  .cgrid{ grid-template-columns:1fr; }
  .mrow{ grid-template-columns:1fr; gap:10px; }

  .demo__wrap{ grid-template-columns:1fr; }
  .footer__row{ flex-direction:column; align-items:flex-start; }
  .hide-mobile{ display:none; }
}

@media (max-width:560px){
  .steps{ grid-template-columns:1fr; }
  .hero__cta{ flex-direction:column; }
  .hero__cta .btn{ width:100%; justify-content:center; }
}

/* respect reduced motion */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  [data-reveal]{ opacity:1; transform:none; transition:none; }
  .ticker__track, .mock__badge, .mock__blob{ animation:none; }
}