/* ===========================================================
   SIAS SYSTEM — Design system
   Palette: brand green evolved with a deep forest-ink neutral
   and a warm amber accent for contrast. Typography: Sora
   (display) + Public Sans (body) + IBM Plex Mono (labels/data).
   =========================================================== */

:root{
  /* Brand */
  --brand-green: #6cb42b;
  --brand-green-deep: #4c8a1d;
  --brand-green-darkest: #2f5c10;
  --brand-amber: #e8a33d;
  --brand-amber-deep: #c97f1e;

  /* Neutrals */
  --ink: #17210f;
  --ink-soft: #3c4632;
  --ink-muted: #667157;
  --ink-faint: #93a081;
  --paper: #f7f8f2;
  --surface: #ffffff;
  --surface-2: #eef1e6;
  --line: #dde3d0;
  --line-strong: #c3cdb0;

  /* Dark band (trust/security sections, footer) */
  --forest: #16210d;
  --forest-2: #1e2e12;
  --forest-line: #33461f;
  --forest-ink: #eef3e3;
  --forest-ink-muted: #a9b899;

  --shadow: 0 12px 30px -14px rgba(20, 30, 10, 0.28);
  --shadow-lg: 0 24px 48px -20px rgba(15, 22, 8, 0.35);
  --radius: 14px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Public Sans', ui-sans-serif, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

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

h1,h2,h3,h4{
  font-family: 'Sora', ui-sans-serif, system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
  color: var(--ink);
}
p{ margin: 0; }

.eyebrow{
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-green-deep);
  font-weight: 600;
}
.forest .eyebrow{ color: var(--brand-green); }

.wrap{
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary{
  background: var(--brand-green);
  color: #ffffff;
  box-shadow: 0 8px 20px -8px rgba(76, 138, 29, 0.55);
}
.btn-primary:hover{ transform: translateY(-1px); box-shadow: 0 12px 24px -8px rgba(76, 138, 29, 0.6); }
.btn-ghost{
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover{ background: var(--surface-2); }
.btn-amber{
  background: var(--brand-amber);
  color: #2b1a04;
  box-shadow: 0 8px 20px -8px rgba(201, 127, 30, 0.55);
}
.btn-amber:hover{ transform: translateY(-1px); }
.btn-on-forest{
  background: var(--brand-green);
  color: #ffffff;
}
.btn-on-forest.ghost{
  background: transparent;
  border-color: rgba(238,243,227,0.35);
  color: var(--forest-ink);
}

/* ---------- Header / nav ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 248, 242, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav{
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0.85rem 0;
}
.brand{
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex: 0 0 auto;
  margin-right: auto;
}
.brand img{ width: 2.4rem; height: 2.4rem; border-radius: 50%; background:#fff; padding:2px; box-shadow: var(--shadow); }
.brand-text{ display: flex; flex-direction: column; line-height: 1.1; }
.brand-text .name{ font-family: 'Sora', sans-serif; font-weight: 800; font-size: 1.05rem; color: var(--ink); }
.brand-text .tagline{ font-family: 'IBM Plex Mono', monospace; font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); }

.nav-links{
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-weight: 600;
  font-size: 0.9rem;
}
.nav-links a{ color: var(--ink-soft); position: relative; padding: 0.3rem 0; white-space: nowrap; }
.nav-links a:hover, .nav-links a.active{ color: var(--brand-green-deep); }
.nav-links a.active::after{
  content:'';
  position: absolute; left:0; right:0; bottom:-4px;
  height: 2px; background: var(--brand-green);
  border-radius: 2px;
}
.nav-cta{ display:flex; align-items:center; gap: 0.75rem; }
.nav-menu-toggle{
  display: none;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  width: 2.4rem; height: 2.4rem;
  border-radius: 8px;
  align-items: center; justify-content: center;
}

/* ---------- Hero ---------- */
.hero{
  padding: 4.5rem 0 5rem;
  position: relative;
  overflow: hidden;
}
.hero::before{
  content:'';
  position: absolute;
  top: -20%; right: -10%;
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(108,180,43,0.18), transparent 70%);
  z-index: 0;
}
.hero-grid{
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}
.hero h1{ font-size: clamp(2.4rem, 4vw, 3.4rem); margin: 0.75rem 0 1.1rem; }
.hero h1 .accent{ color: var(--brand-green-deep); }
.hero p.lead{ font-size: 1.15rem; color: var(--ink-muted); max-width: 46ch; margin-bottom: 1.75rem; }
.hero-actions{ display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-stats{ display:flex; gap:2rem; margin-top: 2.5rem; }
.hero-stats .stat b{ display:block; font-family:'Sora',sans-serif; font-size:1.6rem; color: var(--ink); }
.hero-stats .stat span{ font-size:0.75rem; text-transform:uppercase; letter-spacing:0.06em; color: var(--ink-faint); }

.hero-visual{
  background: linear-gradient(160deg, var(--brand-green) 0%, var(--brand-green-darkest) 100%);
  border-radius: 24px;
  padding: 2.5rem;
  color: #fff;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.hero-visual .mock-card{
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 14px;
  padding: 1rem 1.2rem;
  margin-bottom: 0.85rem;
  backdrop-filter: blur(4px);
}
.hero-visual .mock-card .label{ font-family:'IBM Plex Mono',monospace; font-size:0.68rem; letter-spacing:0.08em; text-transform:uppercase; opacity:0.75; }
.hero-visual .mock-card .value{ font-family:'Sora',sans-serif; font-weight:700; font-size:1.3rem; margin-top:0.2rem; }

/* ---------- Section basics ---------- */
section{ padding: 4.5rem 0; }
.section-head{ max-width: 62ch; margin-bottom: 3rem; }
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); margin-top: 0.5rem; }
.section-head p{ color: var(--ink-muted); font-size: 1.05rem; margin-top: 0.75rem; }
.section-head.center{ margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Feature grid ---------- */
.feature-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}
.feature-card .icon{
  width: 3rem; height: 3rem;
  border-radius: 10px;
  background: var(--brand-green);
  color: #fff;
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 1.1rem;
}
.feature-card .icon svg{ width: 22px; height: 22px; }
.feature-card h3{ font-size: 1.1rem; margin-bottom: 0.5rem; }
.feature-card p{ color: var(--ink-muted); font-size: 0.95rem; }

/* ---------- Bullet feature list (product pages) ---------- */
.bullet-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem 2rem;
}
.bullet-grid li{
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.98rem;
  color: var(--ink-soft);
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line);
}
.bullet-grid li::before{
  content: '';
  flex: 0 0 auto;
  width: 1.15rem; height: 1.15rem;
  margin-top: 0.15rem;
  border-radius: 50%;
  background: var(--brand-green);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/60% no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/60% no-repeat;
}

/* ---------- Pricing cards ---------- */
.pricing-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.pricing-grid.cols-3{
  grid-template-columns: repeat(3, 1fr);
  max-width: 900px;
  margin: 0 auto;
}
.price-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}
.price-card.featured{
  background: linear-gradient(165deg, var(--brand-green), var(--brand-green-darkest));
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}
.price-card h3{ font-size: 1.1rem; }
.price-card.featured h3{ color: #fff; }
.price-card .price{ font-family:'Sora',sans-serif; font-size: 2.1rem; font-weight: 800; margin: 0.75rem 0 0.15rem; }
.price-card .price span{ font-size: 0.9rem; font-weight: 500; opacity: 0.75; }
.price-card .desc{ font-size: 0.9rem; color: var(--ink-muted); margin-bottom: 1.25rem; }
.price-card.featured .desc{ color: rgba(255,255,255,0.85); }
.price-card .btn{ margin-top: auto; justify-content: center; }

/* ---------- Forest / trust band ---------- */
.forest{
  background: linear-gradient(180deg, var(--forest) 0%, var(--forest-2) 100%);
  color: var(--forest-ink);
}
.forest h2, .forest h3, .forest h4{ color: var(--forest-ink); }
.forest p{ color: var(--forest-ink-muted); }
.trust-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.trust-card{
  border: 1px solid var(--forest-line);
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.trust-card .icon{
  width: 2.6rem; height: 2.6rem;
  border-radius: 9px;
  background: rgba(108,180,43,0.18);
  color: var(--brand-green);
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 1rem;
}
.trust-card h4{ font-size: 1rem; margin-bottom: 0.4rem; }
.trust-card p{ font-size: 0.9rem; }

/* ---------- Testimonials ---------- */
.testi-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.testi-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  position: relative;
}
.testi-card .quote-mark{
  font-family: 'Sora', sans-serif;
  font-size: 3rem;
  color: var(--brand-green);
  opacity: 0.35;
  line-height: 1;
  margin-bottom: 0.5rem;
}
.testi-card p.quote{ font-size: 1.05rem; color: var(--ink-soft); margin-bottom: 1.25rem; }
.testi-card .person{ display:flex; align-items:center; gap: 0.75rem; }
.testi-card .avatar{
  width: 2.6rem; height: 2.6rem;
  border-radius: 50%;
  background: var(--brand-green);
  color: #fff;
  display:flex; align-items:center; justify-content:center;
  font-family:'Sora',sans-serif; font-weight:700;
}
.testi-card .person .who b{ display:block; font-size:0.95rem; }
.testi-card .person .who span{ font-size:0.82rem; color: var(--ink-muted); }

.testi-cta{
  margin-top: 2.5rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 1.75rem;
  text-align: center;
}
.testi-cta p{ color: var(--ink-muted); margin-bottom: 1rem; }

/* ---------- CTA band ---------- */
.cta-band{
  background: var(--brand-green);
  color: #fff;
  border-radius: 24px;
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.cta-band h2{ color: #fff; font-size: 1.8rem; }
.cta-band p{ color: rgba(255,255,255,0.85); margin-top: 0.5rem; }

/* ---------- Contact ---------- */
.contact-grid{
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
}
.contact-info-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}
.contact-info-card .row{ display:flex; gap: 0.85rem; align-items:flex-start; margin-bottom: 0.9rem; }
.contact-info-card .row:last-child{ margin-bottom: 0; }
.contact-info-card .icon{
  width: 2.25rem; height:2.25rem; border-radius: 8px;
  background: var(--surface-2); color: var(--brand-green-deep);
  display:flex; align-items:center; justify-content:center; flex:0 0 auto;
}
.contact-form{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}
.form-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.form-field{ display:flex; flex-direction:column; gap: 0.4rem; }
.form-field.full{ grid-column: 1 / -1; }
.form-field label{ font-size: 0.85rem; font-weight: 600; color: var(--ink-soft); }
.form-field input, .form-field textarea{
  font: inherit;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  color: var(--ink);
}
.form-field textarea{ resize: vertical; min-height: 110px; }
.form-field input:focus, .form-field textarea:focus{
  outline: none;
  border-color: var(--brand-green);
  box-shadow: 0 0 0 3px rgba(108,180,43,0.18);
}
.form-field select{
  font: inherit;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  color: var(--ink);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235c6152' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px;
  padding-right: 2.25rem;
}
.form-field select:focus{
  outline: none;
  border-color: var(--brand-green);
  box-shadow: 0 0 0 3px rgba(108,180,43,0.18);
}

/* ---------- Registration form (comprar.php) ---------- */
.register-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2.25rem;
}
.register-card + .register-card{ margin-top: 1.5rem; }
.form-section-title{
  font-family: 'Sora', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}
.register-card .form-row:last-of-type{ margin-bottom: 0; }
.form-notice{
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  background: rgba(232,163,61,0.12);
  border: 1px solid rgba(232,163,61,0.45);
  color: var(--brand-amber-deep);
  border-radius: 8px;
  padding: 0.75rem 0.9rem;
  font-size: 0.85rem;
  line-height: 1.5;
  margin-top: 0.5rem;
}
.form-notice svg{ flex: 0 0 auto; margin-top: 0.15rem; }
.plan-badge{
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(108,180,43,0.12);
  color: var(--brand-green-deep);
  border: 1px solid var(--brand-green);
  border-radius: 999px;
  padding: 0.4rem 1rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  font-weight: 600;
}
.form-check{
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin: 1.5rem 0;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--ink-soft);
}
.form-check input[type="checkbox"]{
  margin-top: 0.2rem;
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--brand-green);
  flex: 0 0 auto;
}
.form-submit{ text-align: center; }
.form-submit .btn{
  border: none;
  cursor: pointer;
  font-size: 1rem;
  padding: 0.85rem 3rem;
}

/* Error overlay (used by scripts.js: muestraerror / cierraoverror) */
.error-overlay{
  position: fixed; inset: 0;
  background-color: rgba(22,33,13,0.72);
  display: none;
  z-index: 99999;
  padding: 20px;
}
.error-box{
  position: relative;
  max-width: 480px;
  margin: 14vh auto 0;
  background: var(--forest);
  border: 1px solid var(--forest-line);
  padding: 28px 26px;
  border-radius: 14px;
  text-align: center;
  font-family: 'Public Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  color: #ffffff;
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}
.error-btn{
  position: relative;
  cursor: pointer;
  width: 100px;
  margin: 18px auto 0;
  background: var(--brand-green);
  color: #ffffff;
  padding: 10px 5px;
  border-radius: 8px;
  text-align: center;
  font-size: 0.95rem;
  font-family: Arial, sans-serif;
  font-weight: 700;
}

/* ---------- Legal pages ---------- */
.legal{ max-width: 74ch; }
.legal h2{ font-size: 1.3rem; margin: 2rem 0 0.75rem; }
.legal h2:first-child{ margin-top: 0; }
.legal p, .legal li{ color: var(--ink-soft); font-size: 0.98rem; margin-bottom: 0.85rem; }
.legal .updated{ font-family:'IBM Plex Mono',monospace; font-size: 0.8rem; color: var(--ink-faint); margin-bottom: 2rem; }

/* ---------- Footer ---------- */
footer.site-footer{
  background: var(--forest);
  color: var(--forest-ink-muted);
  padding: 3.5rem 0 2rem;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--forest-line);
}
.footer-brand{ display:flex; align-items:center; gap:0.65rem; margin-bottom: 0.85rem; }
.footer-brand img{ width: 2.2rem; height: 2.2rem; border-radius: 50%; background:#fff; padding:2px; }
.footer-brand .name{ font-family:'Sora',sans-serif; font-weight:800; color: var(--forest-ink); }
.footer-col h4{
  font-family:'IBM Plex Mono',monospace;
  font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--forest-ink); margin-bottom: 0.9rem;
}
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:0.55rem; }
.footer-col a{ font-size: 0.9rem; color: var(--forest-ink-muted); }
.footer-col a:hover{ color: var(--brand-green); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  padding-top: 1.5rem; font-size: 0.82rem; flex-wrap: wrap; gap: 0.75rem;
}
.footer-bottom a{ color: var(--forest-ink-muted); }
.footer-bottom a:hover{ color: var(--brand-green); }

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .feature-grid{ grid-template-columns: repeat(2, 1fr); }
  .pricing-grid, .pricing-grid.cols-3{ grid-template-columns: repeat(2, 1fr); }
  .trust-grid{ grid-template-columns: 1fr; }
  .testi-grid{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px){
  .nav-links{
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.5rem 1.5rem;
    box-shadow: var(--shadow);
  }
  .nav-links.open{ display: flex; }
  .nav-links a{ padding: 0.55rem 0; width: 100%; }
  .nav{ position: relative; flex-wrap: wrap; }
  .nav-cta{ margin-left: auto; }
  .nav-menu-toggle{ display: flex; }
  .feature-grid{ grid-template-columns: 1fr; }
  .pricing-grid, .pricing-grid.cols-3{ grid-template-columns: 1fr; margin: 0; }
  .price-card.featured{ transform: none; }
  .bullet-grid{ grid-template-columns: 1fr; }
  .form-row{ grid-template-columns: 1fr; }
  .cta-band{ flex-direction: column; text-align: center; }
  .footer-grid{ grid-template-columns: 1fr; }
  .footer-bottom{ flex-direction: column; align-items: flex-start; }
  section{ padding: 3rem 0; }
  .hero{ padding: 3rem 0 3.5rem; }
}