:root {
  --c-bg: #0b1220;
  --c-bg-soft: #111a2e;
  --c-card: #16213a;
  --c-border: #1f2a44;
  --c-text: #e7ecf5;
  --c-muted: #94a3b8;
  --c-accent: #f59e0b;
  --c-accent-2: #45589e; /* NT brand blue */
  --c-good: #49e670;     /* NT brand green */
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,18,32,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; max-width: 1140px; margin: 0 auto; }
.brand { font-weight: 800; font-size: 1.1rem; letter-spacing: 0.02em; }
.brand span { color: var(--c-accent); }
.nav-links { display: flex; gap: 22px; font-size: 0.95rem; }
.nav-links a:hover { color: var(--c-accent); }
.btn-cta { background: var(--c-accent); color: #0b1220; padding: 9px 16px; border-radius: 8px; font-weight: 700; }
.btn-cta:hover { background: #fbbf24; }
@media (max-width: 720px) { .nav-links { display: none; } }

/* HERO */
.hero { padding: 80px 0 60px; background: radial-gradient(circle at 30% 20%, rgba(56,189,248,0.12), transparent 50%), radial-gradient(circle at 80% 80%, rgba(245,158,11,0.10), transparent 55%); }
.hero h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); line-height: 1.15; margin: 0 0 18px; font-weight: 800; }
.hero h1 em { color: var(--c-accent); font-style: normal; }
.hero p { color: var(--c-muted); font-size: 1.15rem; max-width: 720px; margin: 0 0 28px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { padding: 13px 22px; border-radius: 10px; font-weight: 700; display: inline-flex; align-items: center; gap: 8px; border: 1px solid transparent; cursor: pointer; }
.btn-primary { background: var(--c-accent); color: #0b1220; }
.btn-primary:hover { background: #fbbf24; }
.btn-ghost { background: transparent; color: var(--c-text); border: 1px solid var(--c-border); }
.btn-ghost:hover { border-color: var(--c-accent); color: var(--c-accent); }
.hero-trust { margin-top: 36px; display: flex; gap: 24px; flex-wrap: wrap; color: var(--c-muted); font-size: 0.9rem; }
.hero-trust b { color: var(--c-text); }

/* SECTIONS */
section { padding: 70px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); margin: 0 0 12px; font-weight: 800; }
.section-head p { color: var(--c-muted); margin: 0; }

/* PROCESO */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: 14px; padding: 26px;
}
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--c-accent); color: #0b1220; font-weight: 800; margin-bottom: 14px;
}
.step h3 { margin: 0 0 8px; font-size: 1.15rem; }
.step p { color: var(--c-muted); margin: 0; }

/* CATÁLOGO */
.cat-filters { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: 28px; }
.cat-filter {
  background: var(--c-bg-soft); color: var(--c-muted);
  border: 1px solid var(--c-border); padding: 8px 14px; border-radius: 999px;
  font-size: 0.9rem; cursor: pointer;
}
.cat-filter.active, .cat-filter:hover { border-color: var(--c-accent); color: var(--c-accent); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.card {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: 14px; padding: 22px; display: flex; flex-direction: column;
  transition: transform 0.15s, border-color 0.15s;
}
.card:hover { transform: translateY(-3px); border-color: var(--c-accent); }
.card-cat { font-size: 0.75rem; color: var(--c-accent-2); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px; }
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { color: var(--c-muted); font-size: 0.95rem; flex: 1; margin: 0 0 16px; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.card-price { font-size: 1.3rem; font-weight: 800; color: var(--c-accent); }
.card-price small { font-size: 0.7rem; color: var(--c-muted); font-weight: 500; display: block; }
.card-time { font-size: 0.8rem; color: var(--c-muted); }
.card-cta { background: var(--c-accent); color: #0b1220; padding: 8px 14px; border-radius: 8px; font-weight: 700; font-size: 0.85rem; cursor: pointer; border: 0; }

/* INCLUYE / NO INCLUYE */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }
.box { background: var(--c-card); border: 1px solid var(--c-border); border-radius: 14px; padding: 26px; }
.box h3 { margin: 0 0 14px; font-size: 1.15rem; }
.box ul { padding-left: 18px; margin: 0; color: var(--c-muted); }
.box li { margin-bottom: 8px; }
.box.good { border-color: rgba(34,197,94,0.35); }
.box.bad { border-color: rgba(239,68,68,0.35); }

/* FORM */
.form-wrap { background: var(--c-card); border: 1px solid var(--c-border); border-radius: 16px; padding: 32px; max-width: 760px; margin: 0 auto; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
label { font-size: 0.9rem; color: var(--c-muted); }
input, select, textarea {
  background: var(--c-bg-soft); color: var(--c-text);
  border: 1px solid var(--c-border); padding: 11px 13px; border-radius: 9px;
  font-size: 0.95rem; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 0; border-color: var(--c-accent); }
textarea { min-height: 100px; resize: vertical; }
.form-help { color: var(--c-muted); font-size: 0.85rem; margin: 0 0 18px; }
.form-submit { margin-top: 22px; display: flex; justify-content: flex-end; }
.form-note { color: var(--c-muted); font-size: 0.82rem; margin-top: 14px; text-align: center; }

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; }
.faq details {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: 12px; padding: 16px 20px; margin-bottom: 12px;
}
.faq summary { cursor: pointer; font-weight: 600; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--c-accent); font-weight: 700; }
.faq details[open] summary::after { content: "−"; }
.faq p { color: var(--c-muted); margin: 12px 0 0; }

/* FOOTER */
footer { padding: 40px 0; border-top: 1px solid var(--c-border); color: var(--c-muted); font-size: 0.9rem; text-align: center; }
footer a { color: var(--c-accent); }

/* WHATSAPP FLOAT */
.wa-float {
  position: fixed; bottom: 22px; right: 22px;
  background: #25D366; color: #fff; width: 56px; height: 56px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.35); z-index: 100; font-size: 1.6rem;
}
.wa-float:hover { transform: scale(1.05); }

/* NT BADGE en nav */
.nt-badge {
  display: inline-flex; align-items: center; gap: 8px;
  margin-left: 14px; padding-left: 14px;
  border-left: 1px solid var(--c-border);
  font-size: 0.78rem; color: var(--c-muted); line-height: 1.2;
}
.nt-badge img { height: 26px; width: auto; filter: brightness(1.6); }
.nt-badge b { color: var(--c-text); display: block; font-size: 0.85rem; }
@media (max-width: 720px) { .nt-badge { display: none; } }

/* HERO trust con NT */
.hero-by {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--c-bg-soft); border: 1px solid var(--c-border);
  padding: 8px 14px; border-radius: 999px; margin-bottom: 22px;
  font-size: 0.85rem; color: var(--c-muted);
}
.hero-by img { height: 22px; filter: brightness(1.6); }
.hero-by b { color: var(--c-text); }

/* FOOTER ampliado */
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px;
  text-align: left; padding-bottom: 26px; border-bottom: 1px solid var(--c-border); margin-bottom: 22px;
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 { color: var(--c-text); margin: 0 0 10px; font-size: 0.95rem; }
.footer-grid p, .footer-grid li { margin: 0 0 6px; color: var(--c-muted); font-size: 0.88rem; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid img { height: 38px; margin-bottom: 12px; filter: brightness(1.6); }
.footer-bottom { font-size: 0.82rem; color: var(--c-muted); }
.footer-bottom a { color: var(--c-accent); }

/* ============================================================
   CHATBOT — vendedor automático NT Deploy (DeepSeek).
   Único trigger visible: el botón verde .wa-float ya existente.
   ============================================================ */
/* badge rojo "1" sobre el botón verde para llamar la atención */
.wa-float .cb-pulse {
  position: absolute; top: -4px; right: -4px;
  width: 18px; height: 18px; border-radius: 50%;
  background: #ef4444; color: #fff;
  font-size: 0.7rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid var(--c-bg);
  animation: cb-pulse 1.6s infinite;
}
@keyframes cb-pulse { 0%,100%{transform:scale(1)} 50%{transform:scale(1.2)} }

.cb-panel {
  position: fixed; bottom: 22px; right: 22px; z-index: 110;
  width: 380px; max-width: calc(100vw - 24px);
  height: 560px; max-height: calc(100vh - 44px);
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: 16px; box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  display: none; flex-direction: column; overflow: hidden;
}
.cb-panel.open { display: flex; }
.cb-head {
  padding: 14px 16px; background: var(--c-bg-soft);
  border-bottom: 1px solid var(--c-border);
  display: flex; align-items: center; gap: 10px;
}
.cb-head img { height: 28px; filter: brightness(1.6); }
.cb-head-info { flex: 1; }
.cb-head-info b { display: block; font-size: 0.95rem; }
.cb-head-info span { font-size: 0.78rem; color: var(--c-good); display: flex; align-items: center; gap: 6px; }
.cb-head-info span::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--c-good); display: inline-block; }
.cb-close { background: transparent; border: 0; color: var(--c-muted); cursor: pointer; font-size: 1.2rem; padding: 4px 8px; }
.cb-close:hover { color: var(--c-text); }

.cb-body {
  flex: 1; overflow-y: auto; padding: 16px;
  display: flex; flex-direction: column; gap: 10px;
  scroll-behavior: smooth;
}
.cb-msg { max-width: 85%; padding: 10px 14px; border-radius: 14px; font-size: 0.93rem; line-height: 1.4; white-space: pre-wrap; word-wrap: break-word; }
.cb-msg.bot { background: var(--c-bg-soft); border: 1px solid var(--c-border); align-self: flex-start; border-bottom-left-radius: 4px; }
.cb-msg.user { background: var(--c-accent); color: #0b1220; align-self: flex-end; border-bottom-right-radius: 4px; font-weight: 500; }
.cb-msg.system { background: rgba(73,230,112,0.08); border: 1px dashed rgba(73,230,112,0.4); color: var(--c-good); align-self: stretch; text-align: center; font-size: 0.85rem; }
.cb-typing { align-self: flex-start; display: flex; gap: 4px; padding: 10px 14px; }
.cb-typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--c-muted); animation: cb-blink 1.4s infinite both; }
.cb-typing span:nth-child(2) { animation-delay: 0.2s; }
.cb-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes cb-blink { 0%,80%,100%{opacity:0.2} 40%{opacity:1} }

.cb-derivar {
  margin: 10px 0 0; padding: 10px 14px; background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.4); border-radius: 12px;
}
.cb-derivar a {
  display: block; background: #25D366; color: #fff; text-align: center;
  padding: 10px; border-radius: 8px; font-weight: 700; margin-top: 8px;
}
.cb-derivar a:hover { background: #1fbb5a; }

.cb-foot {
  padding: 10px; border-top: 1px solid var(--c-border);
  background: var(--c-bg-soft);
  display: flex; gap: 8px;
}
.cb-input {
  flex: 1; background: var(--c-bg); color: var(--c-text);
  border: 1px solid var(--c-border); border-radius: 10px;
  padding: 10px 12px; font-family: inherit; font-size: 0.93rem; resize: none;
  max-height: 100px;
}
.cb-input:focus { outline: 0; border-color: var(--c-accent); }
.cb-send {
  background: var(--c-accent); color: #0b1220; border: 0;
  border-radius: 10px; padding: 0 16px; font-weight: 700; cursor: pointer;
}
.cb-send:disabled { opacity: 0.4; cursor: not-allowed; }
.cb-foot-note { padding: 0 14px 10px; color: var(--c-muted); font-size: 0.72rem; text-align: center; background: var(--c-bg-soft); }

@media (max-width: 480px) {
  .cb-panel { right: 10px; left: 10px; width: auto; height: calc(100vh - 80px); bottom: 70px; }
  .wa-float { right: 16px; bottom: 16px; }
}