/* ==========================================================================
   Reusch y Cía. — Sistema de diseño del piloto web
   Paleta: identidad ya establecida en el Plan de Marketing H2 2026
   Tipografía: Fraunces (display, con carácter) + Inter (cuerpo/UI) + IBM Plex Mono (datos)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* Color */
  --ink:      #0B2E33;
  --ink-2:    #13424A;
  --teal:     #028090;
  --sea:      #00A896;
  --mint:     #02C39A;
  --amber:    #E08E0B;
  --amber-lt: #FFF3D6;
  --cloud:    #EAF2F2;
  --paper:    #FBFAF8;
  --white:    #FFFFFF;
  --slate:    #56686C;
  --line:     #D9E5E5;
  --red:      #C0392B;

  /* Type */
  --f-display: 'Fraunces', Georgia, serif;
  --f-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --f-mono: 'IBM Plex Mono', monospace;

  --fs-hero: clamp(2.4rem, 5.2vw, 4.4rem);
  --fs-h1: clamp(2rem, 3.6vw, 3rem);
  --fs-h2: clamp(1.5rem, 2.4vw, 2.1rem);
  --fs-h3: clamp(1.15rem, 1.6vw, 1.4rem);
  --fs-body: 1.05rem;
  --fs-small: 0.9rem;

  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 1180px;
  --shadow: 0 20px 50px -20px rgba(11,46,51,0.28);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--f-body);
  font-size:var(--fs-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; }
h1,h2,h3,h4{
  font-family:var(--f-display);
  font-weight:600;
  line-height:1.08;
  margin:0 0 0.5em;
  letter-spacing:-0.01em;
}
p{ margin:0 0 1em; }
.container{ max-width:var(--maxw); margin:0 auto; padding:0 1.6rem; }
.eyebrow{
  font-family:var(--f-body); font-weight:700; font-size:0.78rem;
  letter-spacing:0.12em; text-transform:uppercase; color:var(--teal);
  margin:0 0 0.8rem;
}
.eyebrow.on-dark{ color:var(--mint); }
.lede{ font-size:1.2rem; color:var(--slate); max-width:56ch; }

/* Buttons */
.btn{
  display:inline-flex; align-items:center; gap:0.5rem;
  font-family:var(--f-body); font-weight:600; font-size:0.98rem;
  padding:0.85rem 1.5rem; border-radius:999px; border:1.5px solid transparent;
  cursor:pointer; text-decoration:none; transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:focus-visible{ outline:3px solid var(--amber); outline-offset:2px; }
.btn-primary{ background:var(--teal); color:var(--white); }
.btn-primary:hover{ background:var(--ink); transform:translateY(-1px); }
.btn-amber{ background:var(--amber); color:var(--ink); }
.btn-amber:hover{ transform:translateY(-1px); box-shadow:0 10px 24px -10px rgba(224,142,11,0.55); }
.btn-ghost{ background:transparent; color:var(--white); border-color:rgba(255,255,255,0.4); }
.btn-ghost:hover{ border-color:var(--white); }
.btn-outline{ background:transparent; color:var(--teal); border-color:var(--teal); }
.btn-outline:hover{ background:var(--teal); color:var(--white); }
.btn-sm{ padding:0.55rem 1.05rem; font-size:0.88rem; }

/* Nav */
.nav{
  position:sticky; top:0; z-index:50; background:rgba(251,250,248,0.92);
  backdrop-filter:blur(8px); border-bottom:1px solid var(--line);
}
.nav-inner{ display:flex; align-items:center; justify-content:space-between; padding:1rem 1.6rem; max-width:var(--maxw); margin:0 auto; }
.brand{ font-family:var(--f-display); font-weight:700; font-size:1.3rem; color:var(--ink); text-decoration:none; }
.brand span{ color:var(--teal); }
.nav-links{ display:flex; gap:1.9rem; list-style:none; margin:0; padding:0; }
.nav-links a{ text-decoration:none; font-weight:500; font-size:0.95rem; color:var(--ink); }
.nav-links a:hover{ color:var(--teal); }
.nav-cta{ display:flex; gap:0.7rem; align-items:center; }
.nav-toggle{ display:none; }
@media (max-width:860px){
  .nav-links{ display:none; }
  .nav-toggle{ display:block; background:none; border:none; font-size:1.4rem; cursor:pointer; }
}

/* Hero */
.hero{ background:var(--ink); color:var(--white); padding:5.5rem 0 4.5rem; position:relative; overflow:hidden; }
.hero::after{
  content:""; position:absolute; right:-10%; top:-30%; width:60%; height:160%;
  background:radial-gradient(circle, rgba(2,195,154,0.18), transparent 65%);
  pointer-events:none;
}
.hero h1{ color:var(--white); font-size:var(--fs-hero); max-width:16ch; }
.hero .lede{ color:#BFE3E6; font-size:1.25rem; }
.hero-ctas{ display:flex; gap:1rem; flex-wrap:wrap; margin-top:2.2rem; }
.hero-pillars{ display:flex; gap:2.2rem; margin-top:3.2rem; flex-wrap:wrap; }
.hero-pillar{ font-size:0.86rem; color:#9FC3C7; max-width:22ch; padding-left:1rem; border-left:2px solid var(--sea); }
.hero-pillar strong{ display:block; color:var(--white); font-family:var(--f-display); font-size:1rem; font-weight:600; margin-bottom:0.2rem; }

/* Sections */
section{ padding:4.5rem 0; }
.section-tight{ padding:3rem 0; }
.section-cloud{ background:var(--cloud); }
.section-ink{ background:var(--ink); color:var(--white); }
.section-ink h2, .section-ink h3{ color:var(--white); }
.section-head{ max-width:640px; margin:0 auto 3rem; text-align:left; }
.section-head.center{ text-align:center; margin-left:auto; margin-right:auto; }

/* Grid / Cards */
.grid{ display:grid; gap:1.6rem; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
@media (max-width:900px){ .grid-2,.grid-3,.grid-4{ grid-template-columns:1fr; } }

.card{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:1.8rem; }
.card-tool{
  background:var(--white); border-radius:var(--radius); padding:2.2rem;
  box-shadow:var(--shadow); border-top:4px solid var(--teal);
  display:flex; flex-direction:column; gap:0.9rem;
}
.card-tool.amber{ border-top-color:var(--amber); }
.tool-icon{ width:52px; height:52px; border-radius:12px; display:flex; align-items:center; justify-content:center; background:var(--cloud); }

.pillar-card{ background:var(--ink); color:var(--white); border-radius:var(--radius); padding:1.8rem; border-top:4px solid var(--teal); }
.pillar-card:nth-child(2){ border-top-color:var(--sea); }
.pillar-card:nth-child(3){ border-top-color:var(--amber); }
.pillar-card h3{ font-size:1.15rem; }
.pillar-card .tag{ color:#9FC3C7; font-size:0.85rem; font-style:italic; }

.stat{ text-align:left; }
.stat .num{ font-family:var(--f-display); font-size:2.6rem; font-weight:700; color:var(--teal); line-height:1; }
.stat .label{ color:var(--slate); font-size:0.92rem; margin-top:0.4rem; }

.badge{ display:inline-block; font-size:0.72rem; font-weight:700; letter-spacing:0.06em; text-transform:uppercase; padding:0.3rem 0.7rem; border-radius:999px; }
.badge-teal{ background:var(--cloud); color:var(--teal); }
.badge-amber{ background:var(--amber-lt); color:#8a5a06; }

.divider{ height:1px; background:var(--line); border:none; margin:2.5rem 0; }

/* Forms */
label{ display:block; font-weight:600; font-size:0.92rem; margin-bottom:0.4rem; }
input[type=text], input[type=email], input[type=number], select, textarea{
  width:100%; padding:0.75rem 0.9rem; border:1.5px solid var(--line); border-radius:var(--radius-sm);
  font-family:var(--f-body); font-size:0.98rem; background:var(--white); color:var(--ink);
}
input:focus, select:focus, textarea:focus{ outline:none; border-color:var(--teal); box-shadow:0 0 0 3px rgba(2,128,144,0.15); }
.field{ margin-bottom:1.3rem; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
@media (max-width:640px){ .field-row{ grid-template-columns:1fr; } }
fieldset{ border:none; padding:0; margin:0 0 1.3rem; }
.q-options{ display:flex; flex-direction:column; gap:0.6rem; margin-top:0.6rem; }
.q-option{ display:flex; align-items:center; gap:0.6rem; padding:0.7rem 0.9rem; border:1.5px solid var(--line); border-radius:var(--radius-sm); cursor:pointer; transition:border-color .15s, background .15s; }
.q-option:hover{ border-color:var(--sea); background:var(--cloud); }
.q-option input{ width:auto; accent-color:var(--teal); }
.q-option.selected{ border-color:var(--teal); background:var(--cloud); }

/* Progress */
.progress-track{ height:8px; background:var(--line); border-radius:999px; overflow:hidden; }
.progress-fill{ height:100%; background:linear-gradient(90deg, var(--teal), var(--mint)); border-radius:999px; transition:width .35s ease; }

/* Footer */
footer{ background:var(--ink); color:#9FC3C7; padding:3.5rem 0 2rem; font-size:0.9rem; }
footer a{ color:#BFE3E6; text-decoration:none; }
footer a:hover{ color:var(--white); }
.footer-grid{ display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:2rem; margin-bottom:2.5rem; }
@media (max-width:760px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
.footer-grid h4{ color:var(--white); font-family:var(--f-body); font-size:0.85rem; text-transform:uppercase; letter-spacing:0.06em; margin-bottom:1rem; }
.footer-grid ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:0.55rem; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,0.12); padding-top:1.5rem; display:flex; justify-content:space-between; flex-wrap:wrap; gap:1rem; }

/* Utility */
.text-center{ text-align:center; }
.mt-0{ margin-top:0; } .mb-0{ margin-bottom:0; }
.small{ font-size:var(--fs-small); color:var(--slate); }
.mono{ font-family:var(--f-mono); }
.visually-hidden{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; }
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}
:focus-visible{ outline:3px solid var(--amber); outline-offset:2px; }