/* LinkitDAHS® — Landing de producto. Paleta SISEP */
:root {
  --naranjo: #FF8500;
  --naranjo-claro: #FF9E33;
  --gris-oscuro: #383838;
  --gris-fondo: #2b2b2b;
  --blanco: #FFFFFF;
  --texto-claro: #666666;
  --gris-suave: #f5f5f5;
  --borde: #e6e6e6;
  --naranjo-degradado: linear-gradient(135deg, #FF8500, #f67608);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--gris-oscuro);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
::selection { background: var(--naranjo); color: #fff; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ═══ NAVBAR ═══ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--gris-oscuro);
  transition: transform .4s ease, box-shadow .3s ease;
}
.navbar-logo { display: flex; align-items: center; gap: .6rem; font-size: 1.25rem; font-weight: 700; color: #fff; }
.navbar-logo-img { height: 40px; width: auto; }
.navbar-logo span { color: var(--naranjo); }
.navbar-links { display: flex; align-items: center; gap: .6rem; }
.navbar-links a { font-size: .875rem; font-weight: 600; color: #fff; padding: .45rem 1rem; border-radius: 6px; transition: all .3s ease; }
.navbar-links a:hover { background: rgba(255,255,255,.1); }
.navbar-lang { border: 1px solid rgba(255,255,255,.35); border-radius: 6px; font-size: .8rem; padding: .3rem .7rem; }
.navbar-lang:hover { border-color: var(--naranjo); color: var(--naranjo-claro); background: none; }
.navbar-cta {
  background: var(--naranjo-degradado);
}
.navbar-cta:hover { background: linear-gradient(135deg,#f67608,#FF8500); transform: translateY(-2px); box-shadow: 0 4px 15px rgba(252,147,31,.4); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { width: 26px; height: 3px; background: #fff; border-radius: 2px; }

/* ═══ HERO ═══ */
.hero {
  padding: 9rem 0 5rem;
  background: var(--gris-oscuro);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 10%, rgba(255,133,0,.15), transparent 50%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center; }
.hero-badge {
  display: inline-block; padding: .35rem .9rem; border-radius: 20px;
  background: rgba(255,133,0,.18); color: var(--naranjo-claro);
  font-size: .8rem; font-weight: 600; letter-spacing: .5px; margin-bottom: 1.2rem;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); line-height: 1.15; margin-bottom: 1.2rem; }
.hero h1 .accent { color: var(--naranjo); }
.hero-sub { font-size: 1.15rem; color: #d5d5d5; max-width: 34rem; margin-bottom: 2rem; }
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .9rem 1.8rem; border-radius: 8px; font-weight: 600; font-size: 1rem;
  transition: all .3s ease; border: none; cursor: pointer;
}
.btn-primary { background: var(--naranjo-degradado); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(252,147,31,.35); }
.btn-ghost { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.4); }
.btn-ghost:hover { border-color: var(--naranjo); color: var(--naranjo-claro); }
.hero-visual { display: flex; justify-content: center; }
.hero-visual img { max-height: 380px; border-radius: 12px; box-shadow: 0 20px 50px rgba(0,0,0,.4); }

/* ═══ SECCIONES ═══ */
section { padding: 5rem 0; }
.section-label {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--naranjo); margin-bottom: .6rem;
}
.section-title { font-size: clamp(1.7rem, 3.5vw, 2.5rem); line-height: 1.2; margin-bottom: 1rem; }
.section-intro { max-width: 46rem; color: var(--texto-claro); margin-bottom: 3rem; font-size: 1.05rem; }

.bg-light { background: var(--gris-suave); }
.bg-dark { background: var(--gris-oscuro); color: #fff; }
.bg-dark .section-intro { color: #c9c9c9; }

/* ═══ CARDS FEATURES ═══ */
.grid-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.feature-card {
  background: #fff; border: 1px solid var(--borde); border-radius: 12px; padding: 1.8rem;
  transition: transform .3s ease, box-shadow .3s ease;
}
.bg-dark .feature-card { background: #444; border-color: #4a4a4a; color: #fff; }
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(0,0,0,.12); }
.feature-icon {
  width: 52px; height: 52px; border-radius: 12px; background: var(--naranjo-degradado);
  display: flex; align-items: center; justify-content: center; margin-bottom: 1.1rem; color: #fff;
}
.feature-card h3 { font-size: 1.1rem; margin-bottom: .6rem; }
.feature-card p { color: var(--texto-claro); font-size: .95rem; }
.bg-dark .feature-card p { color: #d5d5d5; }

/* ═══ CHECK LIST ═══ */
.check-list { margin: 1rem 0 1.5rem; }
.check-list li { padding: .35rem 0 .35rem 1.8rem; position: relative; }
.check-list li::before {
  content: "✓"; position: absolute; left: 0; color: var(--naranjo); font-weight: 700;
}

/* ═══ TWO-COLUMN feature blocks ═══ */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.split-img img { border-radius: 12px; box-shadow: 0 15px 40px rgba(0,0,0,.15); }
.split h3 { font-size: 1.4rem; margin-bottom: 1rem; }

/* ═══ REPORTES / COMPATIBILIDAD ═══ */
.pill-row { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.2rem 0; }
.pill {
  background: #fff; border: 1.5px solid var(--borde); border-radius: 30px;
  padding: .55rem 1.2rem; font-size: .9rem; font-weight: 600; color: var(--gris-oscuro);
}
.bg-dark .pill { background: #444; border-color: #555; color: #fff; }

/* ═══ CTA FINAL ═══ */
.cta {
  text-align: center;
  background: var(--naranjo-degradado);
  color: #fff; padding: 5rem 1.5rem;
}
.cta h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 1rem; }
.cta p { max-width: 38rem; margin: 0 auto 2rem; font-size: 1.1rem; opacity: .95; }
.cta .btn-white { background: #fff; color: var(--naranjo); }
.cta .btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,.2); }

/* ═══ FOOTER ═══ */
.footer { background: var(--gris-oscuro); color: #c9c9c9; padding: 3rem 1.5rem; text-align: center; }
.footer-logo { display: flex; align-items: center; justify-content: center; gap: .5rem; margin-bottom: 1rem; font-weight: 700; color: #fff; }
.footer-logo span { color: var(--naranjo); }
.footer-links { display: flex; justify-content: center; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 1.2rem; }
.footer-links a { font-size: .875rem; color: #c9c9c9; transition: color .3s; }
.footer-links a:hover { color: var(--naranjo); }
.footer small { font-size: .8rem; color: #8a8a8a; }

/* ═══ TIMELINE (Trayectoria) ═══ */
.timeline { position: relative; max-width: 820px; margin: 0 auto; padding-left: 0; }
.timeline::before {
  content: ""; position: absolute; left: 18px; top: 0; bottom: 0;
  width: 3px; background: var(--naranjo-degradado); border-radius: 3px;
}
.tl-item { position: relative; padding: 0 0 1.6rem 3.4rem; }
.tl-item::before {
  content: ""; position: absolute; left: 11px; top: 6px;
  width: 17px; height: 17px; border-radius: 50%;
  background: var(--gris-oscuro); border: 3px solid var(--naranjo);
}
.tl-item:last-child { padding-bottom: 0; }
.tl-date {
  display: inline-block; font-size: .82rem; font-weight: 700; letter-spacing: .5px;
  text-transform: uppercase; color: var(--naranjo); margin-bottom: .4rem;
}
.tl-title { font-size: 1.15rem; font-weight: 700; margin-bottom: .3rem; }
.tl-summary { color: var(--texto-claro); font-size: .95rem; }
.bg-dark .tl-summary { color: #d5d5d5; }

/* hito clickeable */
.tl-hit {
  background: #fff; border: 1px solid var(--borde); border-radius: 10px;
  padding: 1.1rem 1.3rem; cursor: pointer; transition: all .3s ease;
}
.bg-dark .tl-hit { background: #444; border-color: #4a4a4a; color: #fff; }
.tl-hit:hover { border-color: var(--naranjo); box-shadow: 0 6px 18px rgba(0,0,0,.12); }
.tl-hit-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.tl-arrow { transition: transform .3s ease; color: var(--naranjo); font-weight: 700; flex-shrink: 0; }
.tl-item.open .tl-arrow { transform: rotate(45deg); }
.tl-detail {
  display: none; margin-top: .9rem; padding-top: .9rem;
  border-top: 1px solid var(--borde);
  color: var(--gris-oscuro); font-size: .95rem; line-height: 1.65;
}
.bg-dark .tl-detail { border-top-color: #555; color: #e0e0e0; }
.tl-item.open .tl-detail { display: block; }
.tl-detail ul { margin-top: .5rem; }
.tl-detail li { padding-left: 1.3rem; position: relative; margin-bottom: .25rem; }
.tl-detail li::before { content: "›"; position: absolute; left: 0; color: var(--naranjo); font-weight: 700; }

/* ═══ CHECKLIST DAHS REAL ═══ */
.checklist-item {
  background: #fff; border: 1px solid var(--borde); border-left: 4px solid var(--naranjo);
  border-radius: 10px; padding: 1.4rem 1.5rem; margin-bottom: 1.2rem;
}
.checklist-q { display: flex; gap: 1rem; align-items: flex-start; }
.checklist-num {
  flex-shrink: 0; width: 34px; height: 34px; border-radius: 50%;
  background: var(--naranjo-degradado); color: #fff; font-weight: 700;
  display: flex; align-items: center; justify-content: center; font-size: 1.05rem;
}
.checklist-q h3 { font-size: 1.1rem; margin-bottom: .25rem; }
.checklist-pregunta { color: var(--texto-claro); font-size: .92rem; }
.checklist-respuesta {
  margin: 1rem 0 0 3.4rem; padding: .9rem 1.1rem;
  background: var(--gris-suave); border-radius: 8px; font-size: .95rem;
}
.checklist-cierre {
  text-align: center; font-size: 1.1rem; font-weight: 600; margin-top: 2rem;
  color: var(--naranjo);
}

/* ═══ CONTACTO ═══ */
.contact-wrap { max-width: 760px; margin: 0 auto; }
.contact-form {
  background: #444; border: 1px solid #4a4a4a; border-radius: 14px;
  padding: 2rem;
}
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.1rem; }
.form-group label { display: block; margin-bottom: .4rem; font-size: .875rem; font-weight: 600; color: #e0e0e0; }
.form-group input, .form-group textarea {
  width: 100%; padding: .75rem .9rem; border-radius: 8px;
  border: 1px solid #555; background: #3a3a3a; color: #fff; font-size: 1rem;
  transition: border-color .3s ease;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--naranjo);
}
.checkbox-ppt {
  display: flex; align-items: flex-start; gap: .6rem;
  margin: 0 0 1.4rem; font-size: .95rem; color: #d5d5d5; cursor: pointer;
}
.checkbox-ppt input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--naranjo); }
.btn-block { width: 100%; justify-content: center; }
.form-status { margin-top: .9rem; font-size: .95rem; text-align: center; min-height: 1.2rem; }
.form-status.ok { color: #7bd88f; }
.form-status.err { color: #ff8a8a; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

/* diagrama / figure */
.diagram-figure { margin: 3rem auto 0; max-width: 900px; }
.diagram-figure img {
  width: 100%; border-radius: 12px;
  box-shadow: 0 15px 40px rgba(0,0,0,.35); border: 1px solid rgba(255,255,255,.12);
}
.diagram-figure figcaption {
  text-align: center; font-size: .85rem; color: #c9c9c9; margin-top: .8rem;
}

/* ═══ REVEAL ═══ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 860px) {
  .hero-inner, .split { grid-template-columns: 1fr; }
  .navbar-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; background: var(--gris-oscuro); padding: 1rem; gap: .5rem;
  }
  .navbar-links.open { display: flex; }
  .navbar-links a { width: 100%; text-align: center; }
  .hamburger { display: flex; }
  .hero { padding: 7rem 0 3rem; }
}