/* =============================================
   Dos Nodos · Landing de ventas
   Paleta alineada con dosnodos.com.co (azul→púrpura).
   Mobile-first, livianos, accesibles.
   ============================================= */

:root {
  --bg: #FFFFFF;
  --bg-soft: #F9FAFB;
  --bg-elev: #FFFFFF;
  --bg-dark: #0F172A;
  --text: #111827;
  --text-muted: #4B5563;
  --text-soft: #6B7280;
  --text-on-dark: #F8FAFC;

  --brand: #2563EB;
  --brand-strong: #1D4ED8;
  --brand-soft: #EFF6FF;
  --accent: #9333EA;
  --accent-strong: #7E22CE;
  --accent-soft: #FAF5FF;

  --border: #E5E7EB;
  --border-strong: #D1D5DB;
  --wa: #25D366;
  --wa-strong: #1FB257;
  --wa-bg: #E7FFDB;
  --danger: #DC2626;

  --grad-brand: linear-gradient(135deg, #2563EB 0%, #9333EA 100%);
  --grad-brand-r: linear-gradient(90deg, #2563EB, #9333EA);

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;

  --shadow-xs: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow-sm: 0 2px 6px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);
  --shadow-md: 0 10px 24px rgba(15, 23, 42, .08), 0 2px 6px rgba(15, 23, 42, .04);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, .14), 0 6px 14px rgba(15, 23, 42, .06);

  --max-w: 1120px;
  --gap: clamp(16px, 3vw, 28px);

  --font: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; height: auto; }

a {
  color: var(--brand);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 2px;
  border-radius: 6px;
}

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 12px;
  background: var(--text);
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
  z-index: 1000;
  font-weight: 600;
}
.skip-link:focus { top: 12px; }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding-inline: 20px;
}
.container.narrow { max-width: 760px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, background .2s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  background: rgba(255, 255, 255, .95);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -.01em;
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-logo {
  height: 38px;
  width: auto;
  display: block;
}
@media (min-width: 700px) {
  .brand-logo { height: 44px; }
}

.site-nav { margin-left: auto; }
.nav-list {
  list-style: none;
  margin: 0; padding: 0;
  display: none;
  gap: 22px;
  align-items: center;
}
.nav-list a {
  color: var(--text);
  font-weight: 500;
  font-size: .97rem;
}
.nav-list a:hover { color: var(--brand); text-decoration: none; }

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px; height: 44px;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle-bar {
  display: block;
  width: 18px; height: 2px;
  background: var(--text);
  border-radius: 2px;
}
.btn-header { display: none; }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .nav-list { display: inline-flex; }
  .btn-header { display: inline-flex; }
}

.site-nav.is-open .nav-list {
  display: flex;
  position: absolute;
  left: 0; right: 0; top: 64px;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 8px 16px 16px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}
.site-nav.is-open .nav-list li { border-bottom: 1px solid var(--border); }
.site-nav.is-open .nav-list li:last-child { border-bottom: none; }
.site-nav.is-open .nav-list a { display: block; padding: 14px 4px; }

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--brand);
  --btn-fg: #fff;
  --btn-bd: transparent;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  font: inherit;
  font-weight: 600;
  font-size: .97rem;
  line-height: 1;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid var(--btn-bd);
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
  transition: transform .15s ease, background .2s ease, box-shadow .2s ease, color .2s ease, border-color .2s ease, filter .2s ease;
  box-shadow: var(--shadow-xs);
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); text-decoration: none; }
.btn:active { transform: translateY(0); }

.btn-primary {
  --btn-bg: var(--grad-brand);
  --btn-fg: #fff;
  background: var(--grad-brand);
  border: none;
  box-shadow: 0 6px 18px rgba(37, 99, 235, .25);
}
.btn-primary:hover { filter: brightness(1.05); box-shadow: 0 10px 22px rgba(99, 65, 235, .30); }

.btn-secondary {
  --btn-bg: var(--bg-elev);
  --btn-fg: var(--text);
  --btn-bd: var(--border-strong);
}
.btn-secondary:hover { --btn-bg: #fff; border-color: var(--brand); color: var(--brand); }

.btn-ghost {
  --btn-bg: transparent;
  --btn-fg: var(--text);
  --btn-bd: var(--border-strong);
  box-shadow: none;
}
.btn-ghost:hover { background: var(--bg-soft); border-color: var(--text); }

.btn-on-dark {
  --btn-fg: var(--text-on-dark);
  --btn-bd: rgba(255,255,255,.35);
}
.btn-on-dark:hover { background: rgba(255,255,255,.08); border-color: #fff; color: #fff; }

.btn-lg { padding: 14px 22px; font-size: 1rem; min-height: 50px; }
.btn-block { width: 100%; }
.btn-icon { display: inline-flex; }

/* ---------- Eyebrows / headings ---------- */
.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--brand);
  background: rgba(37, 99, 235, .08);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.eyebrow-muted {
  color: var(--text-muted);
  background: rgba(75, 85, 99, .08);
}
.eyebrow-on-dark {
  color: #C4B5FD;
  background: rgba(147, 51, 234, .22);
}

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text);
  margin: 0 0 12px;
  line-height: 1.18;
}
h1 { font-size: clamp(2rem, 4.6vw + .5rem, 3.4rem); line-height: 1.08; }
h2 { font-size: clamp(1.6rem, 2.4vw + .8rem, 2.4rem); }
h3 { font-size: 1.12rem; }

.text-gradient {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

p { margin: 0 0 12px; color: var(--text); }
.section-lead { color: var(--text-muted); max-width: 620px; margin-inline: auto; }

/* ---------- Sections ---------- */
.section {
  position: relative;
  padding-block: clamp(56px, 8vw, 96px);
  overflow: hidden;
}
.section-head {
  text-align: center;
  margin-bottom: clamp(28px, 4vw, 48px);
}
.section .container { position: relative; z-index: 1; }

/* Alternancia sutil de fondo */
.section-problem,
.section-benefits,
.section-demos,
.section-faq,
.section-niches { background: var(--bg-soft); }

.section-problem { text-align: center; }
.section-problem p { color: var(--text-muted); }

/* ---------- Watermarks (forma del logo: dos nodos) ---------- */
.watermark {
  position: absolute;
  width: clamp(160px, 22vw, 320px);
  aspect-ratio: 1;
  opacity: .045;
  pointer-events: none;
  z-index: 0;
  filter: blur(.2px);
}
.watermark svg { width: 100%; height: 100%; }
.watermark-tl { top: -50px;  left: -40px;  transform: rotate(-10deg); }
.watermark-tr { top: -40px;  right: -50px; transform: rotate(15deg); }
.watermark-bl { bottom: -60px; left: -40px;  transform: rotate(195deg); }
.watermark-br { bottom: -60px; right: -50px; transform: rotate(165deg); }
.watermark-cta { top: 6%; right: 4%; opacity: .12; width: 220px; }

/* ---------- Section dividers creativos ---------- */
.section-divider {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 12px 20px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.divider-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
  max-width: 320px;
}
.divider-node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 50%;
  box-shadow: var(--shadow-xs);
  transition: transform .3s ease;
}
.divider-node svg { width: 24px; height: 24px; }
.section-divider:hover .divider-node { transform: rotate(10deg) scale(1.05); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-top: clamp(40px, 7vw, 80px);
  padding-bottom: clamp(48px, 8vw, 96px);
  background:
    radial-gradient(1200px 500px at 90% -100px, rgba(147, 51, 234, .12), transparent 60%),
    radial-gradient(800px 400px at -10% 10%, rgba(37, 99, 235, .12), transparent 60%),
    var(--bg);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
  position: relative;
  z-index: 1;
}
@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.05fr .95fr; }
}

.hero-copy h1 { letter-spacing: -.025em; }
.hero-sub {
  font-size: clamp(1rem, .6vw + .9rem, 1.18rem);
  color: var(--text-muted);
  max-width: 56ch;
  margin-bottom: 24px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}
.hero-mini {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  list-style: none;
  padding: 0; margin: 0;
  font-size: .92rem;
  color: var(--text-muted);
}

/* Hero visual: phone + chat WhatsApp animado */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 460px;
}
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: .55;
  z-index: 0;
  pointer-events: none;
}
.blob-a { width: 280px; height: 280px; background: #D8B4FE; top: -20px; right: -30px; }
.blob-b { width: 240px; height: 240px; background: #93C5FD; bottom: -30px; left: -10px; }

.phone {
  position: relative;
  z-index: 1;
  width: min(300px, 84vw);
  aspect-ratio: 9 / 18;
  background: #111827;
  border-radius: 36px;
  padding: 12px;
  box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(255,255,255,.06);
}
.phone-notch {
  position: absolute;
  top: 14px; left: 50%;
  transform: translateX(-50%);
  width: 90px; height: 18px;
  background: #111827;
  border-radius: 999px;
  z-index: 2;
}
.phone-screen {
  position: relative;
  width: 100%; height: 100%;
  background: #ECE5DD;
  border-radius: 26px;
  overflow: hidden;
  padding-top: 32px;
  display: flex;
  flex-direction: column;
}

/* Header del chat (estilo WhatsApp) */
.wa-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: #075E54;
  color: #fff;
}
.wa-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.wa-info { display: flex; flex-direction: column; line-height: 1.15; }
.wa-info strong { font-size: .82rem; font-weight: 600; }
.wa-info small { font-size: .65rem; opacity: .85; display: inline-flex; align-items: center; gap: 4px; }
.wa-online {
  display: inline-block;
  width: 6px; height: 6px;
  background: #25D366;
  border-radius: 50%;
}

/* Hilo del chat */
.wa-thread {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 30%, rgba(0,0,0,.03), transparent 30%),
    radial-gradient(circle at 80% 70%, rgba(0,0,0,.03), transparent 30%),
    #ECE5DD;
}

/* Burbujas de mensaje */
.wa-msg {
  position: relative;
  max-width: 78%;
  padding: 7px 10px 16px;
  font-size: .74rem;
  line-height: 1.3;
  border-radius: 8px;
  word-wrap: break-word;
  opacity: 0;
  transform: translateY(8px) scale(.96);
  transform-origin: 0 100%;
  animation: msg-in 320ms cubic-bezier(.2,.7,.2,1) forwards;
  box-shadow: 0 1px 1px rgba(0,0,0,.08);
}
.wa-msg.them {
  align-self: flex-start;
  background: #fff;
  color: #111;
  border-top-left-radius: 2px;
  transform-origin: 0 0;
}
.wa-msg.me {
  align-self: flex-end;
  background: var(--wa-bg);
  color: #111;
  border-top-right-radius: 2px;
  transform-origin: 100% 0;
}
.wa-msg .wa-time {
  position: absolute;
  right: 8px; bottom: 3px;
  font-size: .55rem;
  color: #667;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}
.wa-msg .wa-ticks {
  display: inline-block;
  width: 12px;
  color: #34B7F1;
  font-weight: 700;
  letter-spacing: -2px;
}
.wa-msg.leaving {
  animation: msg-out 280ms ease forwards;
}

/* Indicador "escribiendo..." */
.wa-typing {
  align-self: flex-start;
  background: #fff;
  padding: 8px 12px;
  border-radius: 8px;
  border-top-left-radius: 2px;
  display: inline-flex;
  gap: 3px;
  align-items: center;
  box-shadow: 0 1px 1px rgba(0,0,0,.08);
  animation: msg-in 220ms ease forwards;
}
.wa-typing.leaving { animation: msg-out 200ms ease forwards; }
.wa-typing span {
  width: 5px; height: 5px;
  background: #999;
  border-radius: 50%;
  display: inline-block;
  animation: dot-bounce 1.2s infinite ease-in-out;
}
.wa-typing span:nth-child(2) { animation-delay: .15s; }
.wa-typing span:nth-child(3) { animation-delay: .30s; }

@keyframes msg-in {
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes msg-out {
  to { opacity: 0; transform: translateY(-8px) scale(.96); }
}
@keyframes dot-bounce {
  0%, 80%, 100% { transform: translateY(0); opacity: .4; }
  40% { transform: translateY(-4px); opacity: 1; }
}

/* Input falso de WhatsApp */
.wa-input {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  background: #ECE5DD;
}
.wa-field {
  flex: 1;
  height: 30px;
  background: #fff;
  border-radius: 999px;
}
.wa-send {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--wa);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

@media (prefers-reduced-motion: reduce) {
  .wa-msg, .wa-typing { animation: none; opacity: 1; transform: none; }
}

/* Burbuja flotante "+1 contacto nuevo" */
.wa-bubble {
  position: absolute;
  z-index: 2;
  top: 14%;
  right: 0;
  background: var(--wa);
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 18px;
  border-bottom-left-radius: 4px;
  font-size: .85rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@media (prefers-reduced-motion: reduce) {
  .wa-bubble { animation: none; }
}

/* Divisor decorativo dentro del hero (versión opcional, oculto por defecto) */
.section-divider.divider-flip { display: none; }

/* ---------- Two col ---------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}
@media (min-width: 880px) {
  .two-col { grid-template-columns: 1fr 1fr; }
}

.check-list {
  list-style: none;
  padding: 0; margin: 18px 0 0;
  display: grid;
  gap: 10px;
}
.check-list li {
  position: relative;
  padding-left: 30px;
  color: var(--text);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 4px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: rgba(37, 99, 235, .12);
}
.check-list li::after {
  content: "";
  position: absolute;
  left: 6px; top: 9px;
  width: 8px; height: 4px;
  border-left: 2px solid var(--brand);
  border-bottom: 2px solid var(--brand);
  transform: rotate(-45deg);
}

.card-stack {
  display: grid;
  gap: 14px;
}
.card-mini {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "dot title"
    "dot sub";
  gap: 2px 14px;
  align-items: center;
  box-shadow: var(--shadow-xs);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card-mini:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card-mini .dot {
  grid-area: dot;
  width: 12px; height: 12px; border-radius: 50%;
  align-self: center;
}
.dot-blue { background: var(--brand); }
.dot-purple { background: var(--accent); }
.card-mini strong { grid-area: title; font-size: 1rem; }
.card-mini small { grid-area: sub; color: var(--text-muted); }

/* ---------- Grid ---------- */
.grid {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
}
.grid-3 {
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Benefits cards ---------- */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-xs);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.card h3 { margin-top: 10px; }
.card p { color: var(--text-muted); margin-bottom: 0; }
.card-icon {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 42px; height: 42px;
  border-radius: 12px;
  background: rgba(37, 99, 235, .10);
  color: var(--brand);
}
.card:nth-child(2n) .card-icon { background: rgba(147, 51, 234, .12); color: var(--accent); }

/* ---------- Niches ---------- */
.niche-list {
  list-style: none;
  padding: 0; margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
@media (min-width: 560px) {
  .niche-list { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 880px) {
  .niche-list { grid-template-columns: repeat(4, 1fr); }
}
.niche-list li {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 12px 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 500;
  box-shadow: var(--shadow-xs);
}
.niche-list li span { font-size: 1.1rem; }

/* ---------- Demos ---------- */
.demo-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 0 22px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: transform .2s ease, box-shadow .2s ease;
}
.demo-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.demo-card h3 { margin: 18px 22px 8px; }
.demo-card p  { margin: 0 22px 16px; color: var(--text-muted); flex: 1; }
.demo-card .btn { margin: 0 22px; }

.demo-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
  display: flex; align-items: flex-end;
  padding: 16px;
  color: #fff;
}
.demo-tour { background:
    radial-gradient(120% 60% at 20% 10%, rgba(147, 51, 234, .85), transparent 60%),
    linear-gradient(135deg, #2563EB, #6D28D9);
}
.demo-cafe { background:
    radial-gradient(120% 60% at 80% 10%, rgba(147, 51, 234, .65), transparent 60%),
    linear-gradient(135deg, #1E40AF, #9333EA);
}
.demo-spa  { background:
    radial-gradient(120% 60% at 30% 80%, rgba(37, 99, 235, .55), transparent 60%),
    linear-gradient(135deg, #7E22CE, #2563EB);
}
.demo-badge {
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.35);
  color: #fff;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .03em;
  backdrop-filter: blur(4px);
}

/* ---------- Plans ---------- */
.plans { align-items: stretch; }
.plan {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-xs);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.plan:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.plan header { margin-bottom: 4px; }
.plan h3 { font-size: 1.25rem; margin-bottom: 8px; }
.plan-price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 8px;
}
.plan-price .plan-from { font-size: .85rem; color: var(--text-muted); }
.plan-price strong { font-size: 1.7rem; letter-spacing: -.02em; }
.plan-price .plan-currency { font-size: .85rem; color: var(--text-muted); }
.plan-tagline { color: var(--text-muted); margin: 0; font-size: .96rem; }
.plan .check-list { margin-top: 0; flex: 1; }

.plan-featured {
  border-color: transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    var(--grad-brand) border-box;
  border: 2px solid transparent;
  box-shadow: 0 0 0 6px rgba(147, 51, 234, .08), var(--shadow-md);
  transform: translateY(-4px);
}
.plan-featured:hover { transform: translateY(-6px); }
.plan-flag {
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--grad-brand);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}

/* ---------- Process ---------- */
.steps {
  list-style: none;
  padding: 0; margin: 0;
  counter-reset: step;
  display: grid;
  gap: 14px;
}
@media (min-width: 720px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
}
.steps li {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  box-shadow: var(--shadow-xs);
}
.step-num {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--grad-brand);
  color: #fff;
  font-weight: 700;
  margin-bottom: 12px;
}
.steps li h3 { font-size: 1.05rem; margin-bottom: 6px; }
.steps li p  { color: var(--text-muted); margin: 0; font-size: .96rem; }

/* ---------- Trust ---------- */
.badge-list {
  list-style: none;
  padding: 0; margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.badge-list li {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 500;
  font-size: .95rem;
  box-shadow: var(--shadow-xs);
}

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 10px; }
.faq details {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 18px;
  transition: border-color .2s ease;
}
.faq details[open] { border-color: var(--border-strong); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 0;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--text);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 1.4rem;
  line-height: 1;
  color: var(--brand);
  transition: transform .2s ease;
}
.faq details[open] summary::after { content: "−"; color: var(--accent); }
.faq details p {
  margin: 0 0 16px;
  color: var(--text-muted);
}

/* ---------- CTA final ---------- */
.section-cta { background: var(--bg); }
.cta-card {
  position: relative;
  background:
    radial-gradient(800px 300px at 100% -50px, rgba(147, 51, 234, .55), transparent 60%),
    radial-gradient(600px 240px at -10% 110%, rgba(37, 99, 235, .45), transparent 60%),
    var(--bg-dark);
  color: var(--text-on-dark);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 4vw, 56px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
@media (min-width: 900px) {
  .cta-card { grid-template-columns: 1.05fr .95fr; align-items: center; }
}
.cta-card h2 { color: #fff; }
.cta-card p { color: rgba(248, 250, 252, .82); }
.watermark-cta { opacity: .14; }

/* ---------- Form ---------- */
.contact-form {
  background: var(--bg-elev);
  color: var(--text);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 1;
}
.form-intro { color: var(--text-muted); margin: 0 0 14px; font-size: .95rem; }
.field { margin-bottom: 14px; }
.field label {
  display: block;
  font-weight: 600;
  font-size: .92rem;
  margin-bottom: 6px;
  color: var(--text);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 12px 14px;
  min-height: 46px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field textarea { min-height: 90px; resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .18);
}
.field.is-invalid input,
.field.is-invalid select,
.field.is-invalid textarea {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, .15);
}
.field-error {
  display: block;
  margin-top: 6px;
  color: var(--danger);
  font-size: .85rem;
  font-weight: 500;
}
.form-note { margin: 12px 0 0; color: var(--text-muted); font-size: .9rem; min-height: 1.2em; }
.form-note.is-ok { color: #15803D; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-dark);
  color: var(--text-on-dark);
  padding-top: clamp(40px, 6vw, 64px);
  padding-bottom: 24px;
  margin-top: clamp(48px, 8vw, 96px);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 200px at 90% 0%, rgba(147, 51, 234, .15), transparent 60%),
    radial-gradient(600px 200px at 0% 100%, rgba(37, 99, 235, .15), transparent 60%);
  pointer-events: none;
}
.footer-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
.brand-logo-foot {
  filter: brightness(0) invert(1);
  opacity: .92;
}
.foot-claim { color: rgba(248, 250, 252, .8); margin: 10px 0 4px; }
.foot-loc { color: rgba(248, 250, 252, .55); font-size: .9rem; margin: 0; }

.site-footer h2 {
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(248, 250, 252, .55);
  margin: 0 0 12px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a {
  color: var(--text-on-dark);
  font-size: .96rem;
}
.site-footer a:hover { color: #C4B5FD; }

.foot-bottom {
  position: relative;
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.foot-bottom small { color: rgba(248, 250, 252, .55); }

/* ---------- Floating WhatsApp ---------- */
.fab-wa {
  position: fixed;
  bottom: 18px;
  right: 18px;
  z-index: 80;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--wa);
  color: #fff;
  display: inline-flex;
  align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: transform .2s ease, background .2s ease;
}
.fab-wa::before {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, .4);
  animation: pulse-ring 2.2s ease-out infinite;
}
@keyframes pulse-ring {
  0% { transform: scale(.9); opacity: .8; }
  100% { transform: scale(1.45); opacity: 0; }
}
.fab-wa:hover { background: var(--wa-strong); transform: translateY(-2px); text-decoration: none; }
@media (prefers-reduced-motion: reduce) {
  .fab-wa::before { animation: none; }
}

/* ---------- Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .5s ease, transform .5s ease;
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Tiny utilities ---------- */
@media (max-width: 480px) {
  .hero-actions .btn { flex: 1 1 100%; }
}