:root {
  --blue: #2563eb;
  --blue-600: #1d4ed8;
  --blue-700: #1e40af;
  --blue-900: #12317e;
  --blue-ink: #081331;
  --ink: #0b1220;
  --ink-soft: #3b4a63;
  --muted: #64748b;
  --line: #e7edf6;
  --bg: #ffffff;
  --bg-soft: #f6f8fc;
  --bg-tint: #eef3fb;
  --ink-light: #f2f6ff;
  --muted-light: #8ea0c2;
  --line-dark: #22304f;
  --radius: 20px;
  --shadow-sm: 0 1px 2px rgba(11, 18, 32, 0.04), 0 2px 8px rgba(11, 18, 32, 0.04);
  --shadow: 0 14px 34px rgba(11, 24, 51, 0.10), 0 2px 6px rgba(11, 24, 51, 0.05);
  --shadow-lg: 0 34px 80px rgba(8, 19, 51, 0.20), 0 8px 22px rgba(8, 19, 51, 0.08);
  --grad-primary: linear-gradient(180deg, #3b76ff 0%, #2563eb 45%, #1d4ed8 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 100% -8%, rgba(37, 99, 235, .16), transparent 55%),
    radial-gradient(900px 520px at -12% 38%, rgba(30, 64, 175, .14), transparent 55%),
    radial-gradient(800px 500px at 50% 110%, rgba(18, 49, 126, .18), transparent 60%),
    linear-gradient(180deg, #060b1c 0%, #081028 45%, #050a18 100%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }

img { display: block; max-width: 100%; }

a { text-decoration: none; color: inherit; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 12px;
  font-weight: 600; font-size: 15px;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
.btn--primary {
  background: var(--grad-primary); color: #fff;
  box-shadow: 0 10px 24px rgba(29, 78, 216, .32), inset 0 1px 0 rgba(255, 255, 255, .22);
}
.btn--primary:hover { background: linear-gradient(180deg, #2f6bff 0%, #1d4ed8 45%, #1e40af 100%); transform: translateY(-2px); box-shadow: 0 16px 34px rgba(29, 78, 216, .38); }
.btn--ghost { background: rgba(255,255,255,.04); color: #f2f6ff; border: 1px solid rgba(255,255,255,.16); }
.btn--ghost:hover { border-color: #6ea1ff; color: #6ea1ff; }
.btn--white { background: #fff; color: #0b1220; }
.btn--white:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,.3); }
.btn--light {
  background: linear-gradient(180deg, #ffffff 0%, #eef4ff 100%); color: #0b1c3d;
  box-shadow: 0 10px 30px rgba(2, 6, 23, .35), inset 0 1px 0 rgba(255,255,255,.8);
}
.btn--light:hover { transform: translateY(-2px); }
.btn--outline { background: rgba(255,255,255,.04); color: #fff; border: 1px solid rgba(255,255,255,.28); backdrop-filter: blur(6px); }
.btn--outline:hover { border-color: #fff; background: rgba(255,255,255,.10); }

/* ---------- Eyebrow / headings ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase; color: var(--blue-600);
  background: rgba(37, 99, 235, .07);
  border: 1px solid rgba(37, 99, 235, .12);
  padding: 6px 14px; border-radius: 999px;
}
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,.16); }
.eyebrow--light { color: #93c5fd; background: rgba(147, 197, 253, .10); border-color: rgba(147,197,253,.18); }
.eyebrow--light::before { background: #7dd3fc; box-shadow: 0 0 0 3px rgba(125,211,252,.16); }

h1 { font-size: clamp(38px, 6vw, 64px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 800; }
h2 { font-size: clamp(28px, 4vw, 44px); line-height: 1.12; letter-spacing: -0.02em; font-weight: 800; }

/* ---------- NAV ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7, 13, 32, .72); backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid rgba(37, 99, 235, .16);
  box-shadow: 0 8px 30px rgba(0, 0, 0, .3);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.nav__brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: #fff; }
.nav__logo {
  width: 24px; height: 24px; border-radius: 8px;
  background: var(--grad-primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, .45), inset 0 1px 0 rgba(255,255,255,.35);
  display: inline-block;
}
.nav__links { display: flex; gap: 28px; }
.nav__links a { font-size: 14.5px; color: #c3d0ea; font-weight: 500; }
.nav__links a:hover { color: #6ea1ff; }
.nav__cta { padding: 10px 18px; font-size: 14px; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  padding: 96px 0 116px;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(1200px 640px at 82% -12%, rgba(59, 118, 255, .48), transparent 60%),
    radial-gradient(900px 620px at -8% 115%, rgba(30, 64, 175, .5), transparent 60%),
    radial-gradient(700px 400px at 50% 120%, rgba(37, 99, 235, .25), transparent 65%),
    linear-gradient(160deg, #040815 0%, #071330 44%, #0b2863 100%);
}
.hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero__copy { display: flex; flex-direction: column; gap: 24px; }
.hero__copy h1 { color: #fff; }
.hero__copy p { font-size: 18px; color: #b7c6e4; max-width: 460px; }
.hero__accent {
  background: linear-gradient(100deg, #8cc5ff, #7dd3fc 45%, #a5b4fc);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 4px; }

.hero__visual { position: relative; display: flex; justify-content: center; }
.hero__mockup { position: relative; width: 380px; max-width: 84vw; }
.hero__mockup::before {
  content: ""; position: absolute; inset: -70px -40px; z-index: 0;
  background: radial-gradient(340px 340px at 50% 42%, rgba(59, 118, 255, .4), transparent 70%);
  filter: blur(20px);
}
.hero__browser {
  position: relative; z-index: 1;
  background: linear-gradient(180deg, rgba(255, 255, 255, .10), rgba(255, 255, 255, .03));
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 22px;
  padding: 12px;
  box-shadow: 0 44px 96px rgba(2, 6, 23, .6), 0 0 0 1px rgba(255,255,255,.04) inset, 0 1px 0 rgba(255,255,255,.12) inset;
  backdrop-filter: blur(6px);
}
.hero__dots { display: flex; gap: 7px; padding: 4px 6px 12px; }
.hero__dots i { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,.20); }
.hero__dots i:first-child { background: rgba(255,255,255,.42); }
.hero__browser img { width: 100%; border-radius: 14px; display: block; box-shadow: 0 8px 20px rgba(2,6,23,.3); }

/* ---------- Sections ---------- */
.section {
  padding: 104px 0; position: relative;
  background: linear-gradient(180deg, #ffffff 0%, #f5f8fd 100%);
  color: var(--ink);
}
.section--dark {
  background:
    radial-gradient(900px 520px at 88% -6%, rgba(37, 99, 235, .30), transparent 60%),
    radial-gradient(760px 460px at 4% 108%, rgba(30, 64, 175, .32), transparent 60%),
    linear-gradient(180deg, #0a1530 0%, #0a1631 55%, #0b1c3f 100%);
  color: #fff;
}
.section--tint {
  background:
    radial-gradient(1000px 520px at 50% -10%, rgba(59, 118, 255, .26), transparent 62%),
    radial-gradient(820px 480px at 100% 110%, rgba(30, 64, 175, .3), transparent 60%),
    linear-gradient(180deg, #0a1c45 0%, #071230 100%);
  color: #fff;
}
.section__head { max-width: 640px; margin-bottom: 60px; display: flex; flex-direction: column; gap: 16px; }
.section__head p { color: var(--muted); font-size: 17px; }
.section__head--light p { color: #93a6c8; }
.section--tint .section__head p { color: #aebcd6; }
.section--tint .eyebrow { color: #93c5fd; background: rgba(147, 197, 253, .10); border-color: rgba(147,197,253,.18); }
.section--tint .eyebrow::before { background: #7dd3fc; box-shadow: 0 0 0 3px rgba(125,211,252,.16); }

/* ---------- Chat mockup (CSS) ---------- */
.chat {
  --wc-primary: #2563eb;
  background: #fff; border-radius: 18px; overflow: hidden;
  border: 1px solid #e7edf6; box-shadow: var(--shadow-lg);
  color: #0f172a;
  display: flex; flex-direction: column; font-family: "Inter", sans-serif;
}
.chat__head {
  display: flex; align-items: center; gap: 11px; padding: 14px 16px;
  background: var(--wc-primary);
  background-image: linear-gradient(180deg, rgba(255,255,255,.16), rgba(0,0,0,.14));
  color: #fff; box-shadow: inset 0 1px 0 rgba(255,255,255,.18);
}
.chat__avatar {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  background: rgba(255,255,255,.22); box-shadow: inset 0 1px 0 rgba(255,255,255,.3);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px;
}
.chat__head-text { display: flex; flex-direction: column; line-height: 1.25; flex: 1; min-width: 0; }
.chat__head-text strong { font-size: 14.5px; font-weight: 600; }
.chat__head-text small { font-size: 11.5px; opacity: .85; display: flex; align-items: center; gap: 5px; }
.on { width: 7px; height: 7px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 0 3px rgba(74,222,128,.18); display: inline-block; }
.chat__more { opacity: .8; letter-spacing: 1px; }
.chat__body { padding: 16px; display: flex; flex-direction: column; gap: 10px; background: linear-gradient(180deg, #fbfcfe, #f4f7fc); flex: 1; }
.bubble { max-width: 80%; padding: 9px 13px; border-radius: 14px; font-size: 13.5px; line-height: 1.45; }
.bubble--in { background: #fff; border: 1px solid #e7edf6; box-shadow: var(--shadow-sm); border-bottom-left-radius: 4px; align-self: flex-start; }
.bubble--out { background: var(--wc-primary); color: #fff; box-shadow: 0 4px 12px rgba(37,99,235,.22); border-bottom-right-radius: 4px; align-self: flex-end; }
.chat__input {
  display: flex; align-items: center; gap: 8px; padding: 11px 14px; border-top: 1px solid #e7edf6;
  color: #64748b; font-size: 13.5px; background: #fff;
}
.chat__input button {
  margin-left: auto; width: 30px; height: 30px; border-radius: 50%; border: none;
  background: var(--grad-primary); cursor: pointer; position: relative;
  box-shadow: 0 4px 10px rgba(37,99,235,.3), inset 0 1px 0 rgba(255,255,255,.3);
}
.chat__input button::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 8px; height: 8px;
  border-top: 2px solid #fff; border-right: 2px solid #fff;
  transform: translate(-60%, -50%) rotate(45deg);
}

/* ---------- Seção 2: configuração ---------- */
.config { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.config__panel {
  background: linear-gradient(180deg, #ffffff 0%, #fbfcff 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px 22px;
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.8);
}
.config__row { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; border-bottom: 1px solid var(--line); }
.config__row:last-child { border-bottom: none; }
.config__label { font-weight: 600; font-size: 14.5px; color: var(--ink); }
.config__logo-slot { display: flex; align-items: center; gap: 8px; background: var(--bg-soft); padding: 8px 14px; border-radius: 10px; font-size: 13.5px; color: var(--ink-soft); border: 1px solid var(--line); }
.config__logo-dot { width: 14px; height: 14px; border-radius: 4px; background: var(--grad-primary); box-shadow: 0 2px 6px rgba(37,99,235,.4); }
.config__field { background: var(--bg-soft); padding: 8px 14px; border-radius: 10px; font-size: 13.5px; color: var(--ink-soft); border: 1px solid var(--line); }
.config__swatches { display: flex; gap: 8px; }
.sw { width: 22px; height: 22px; border-radius: 50%; cursor: pointer; border: 2px solid #fff; box-shadow: 0 0 0 1px var(--line); transition: transform .15s ease; }
.sw:hover { transform: scale(1.12); }
.sw--blue { background: #2563eb; } .sw--green { background: #059669; } .sw--violet { background: #7c3aed; }
.sw--amber { background: #d97706; } .sw--rose { background: #e11d48; }
.config__seg { display: flex; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 10px; padding: 3px; font-size: 13px; }
.config__seg span { padding: 6px 16px; border-radius: 8px; color: var(--muted); }
.config__seg .config__seg-on { background: var(--grad-primary); color: #fff; box-shadow: 0 2px 8px rgba(37,99,235,.35); font-weight: 600; }
.config__toggle { width: 46px; height: 26px; border-radius: 999px; background: var(--grad-primary); position: relative; box-shadow: inset 0 1px 2px rgba(0,0,0,.15); }
.config__toggle span { position: absolute; right: 3px; top: 3px; width: 20px; height: 20px; background: #fff; border-radius: 50%; box-shadow: 0 1px 3px rgba(0,0,0,.3); }

.config__preview { display: flex; flex-direction: column; gap: 20px; }
.config__preview .chat { max-width: 320px; margin-left: auto; }

/* ---------- Seção 3: grid ---------- */
.grid { display: grid; gap: 24px; }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid__cell { text-align: center; position: relative; }
.grid__cell .chat--mini { position: relative; z-index: 1; transform: scale(1); transition: transform .25s ease; }
.grid__cell::before {
  content: ""; position: absolute; inset: -20px -8px; z-index: 0;
  background: radial-gradient(170px 170px at 50% 28%, rgba(37, 99, 235, .22), transparent 70%);
  opacity: 0; transition: opacity .25s ease; pointer-events: none;
}
.grid__cell:hover::before { opacity: 1; }
.grid__cell:hover .chat--mini { transform: translateY(-6px); }
.grid__label { margin-top: 16px; font-size: 14px; font-weight: 600; color: #aebcd6; }
.chat--mini .chat__body { padding: 12px; gap: 8px; }
.chat--mini .bubble { font-size: 12px; }

/* ---------- Seção 4: WhatsApp → Webchat ---------- */
.wa { display: grid; grid-template-columns: 1.25fr .85fr; gap: 40px; align-items: center; }
.wa__visual { display: flex; align-items: center; justify-content: center; gap: 18px; }
.wa__device { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.wa__caption { font-size: 13px; color: var(--muted); text-align: center; max-width: 230px; line-height: 1.45; }

.wa__window {
  width: 300px; max-width: 100%;
  background: #0f172a; border-radius: 24px; overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 44px 90px rgba(0, 0, 0, .5), 0 0 0 1px rgba(37, 99, 235, .14), inset 0 1px 0 rgba(255,255,255,.08);
}
.wa__window-bar {
  display: flex; align-items: center; gap: 8px; padding: 11px 16px;
  background: linear-gradient(180deg, #0a6a5e 0%, #075e54 100%);
  color: #fff; font-size: 13px; font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.10);
}
.wa__window-dot { width: 9px; height: 9px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 0 3px rgba(74,222,128,.2); }
.wa__window-body { background: #0b141a; }
.wa__window-body img { width: 100%; height: auto; display: block; }

.phone {
  width: 215px; height: 400px; background: #0f172a; border-radius: 34px; padding: 14px;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 46px 96px rgba(0, 0, 0, .55), 0 0 0 1px rgba(37, 99, 235, .12), inset 0 1px 0 rgba(255,255,255,.08);
  position: relative; display: flex; flex-direction: column;
}
.phone::before {
  content: ""; position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  width: 60px; height: 6px; background: #1e293b; border-radius: 99px;
}
.phone__app { color: #fff; font-size: 12.5px; font-weight: 700; padding: 26px 6px 12px; text-align: center; }

.wa__connector { display: flex; flex-direction: column; align-items: center; gap: 10px; flex-shrink: 0; }
.wa__arrow {
  font-size: 30px; font-weight: 700; line-height: 1;
  background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 4px 8px rgba(37,99,235,.35));
}
.wa__flow { font-size: 11.5px; color: var(--muted); text-align: center; line-height: 1.4; }

.phone .chat--phone { border: none; box-shadow: none; border-radius: 20px; height: 100%; }
.phone .chat--phone .chat__body { padding: 12px; gap: 8px; }
.phone .chat--phone .bubble { font-size: 12px; }

.wa__info { display: flex; flex-direction: column; gap: 18px; }
.wa__lead { font-size: 19px; font-weight: 500; line-height: 1.5; color: var(--ink); }
.wa__lead strong { color: var(--blue-600); }
.wa__desc { color: var(--muted); font-size: 15px; line-height: 1.6; }
.wa__list { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.wa__list li {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 9px 14px; font-size: 14px; font-weight: 500; color: var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.wa__list li:hover { transform: translateY(-2px); border-color: rgba(37,99,235,.4); box-shadow: var(--shadow); }
.wa__ic { font-size: 15px; }


/* ---------- Seção 5: demo ---------- */
.demo { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: center; }
.demo__controls { display: flex; flex-direction: column; gap: 18px; }
.demo__hint { font-weight: 600; font-size: 15px; }
.demo__pickers { display: flex; gap: 12px; flex-wrap: wrap; }
.pick {
  width: 44px; height: 44px; border-radius: 50%; background: var(--c); border: 3px solid #fff;
  box-shadow: 0 4px 14px rgba(0,0,0,.4), 0 0 0 1px rgba(255,255,255,.2);
  cursor: pointer; transition: transform .15s ease, box-shadow .15s ease;
}
.pick:hover { transform: scale(1.12); }
.pick.is-active { box-shadow: 0 0 0 3px var(--c), 0 8px 20px rgba(0,0,0,.4); }
.demo__name { display: flex; flex-direction: column; gap: 8px; }
.demo__name span { font-size: 13px; color: var(--muted-light); font-weight: 500; }
.demo__name input {
  padding: 12px 16px; border-radius: 12px; border: 1px solid rgba(37, 99, 235, .2); font-size: 15px;
  font-family: inherit; background: rgba(255,255,255,.05); color: #f2f6ff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.demo__name input::placeholder { color: #6d7ea5; }
.demo__name input:focus { outline: none; border-color: #5b8cff; box-shadow: 0 0 0 4px rgba(37,99,235,.18); }
.demo__stage { display: flex; justify-content: center; position: relative; }
.demo__stage::before {
  content: ""; position: absolute; inset: -40px; z-index: 0;
  background: radial-gradient(360px 360px at 50% 45%, rgba(37,99,235,.12), transparent 70%);
}
.demo__stage .chat { position: relative; z-index: 1; width: 420px; max-width: 90vw; min-height: 540px; }
.chat--demo { transition: background .3s ease; }

/* ---------- Seção 6: benefícios ---------- */
.grid--benefits { grid-template-columns: repeat(4, 1fr); }
.benefit {
  background: linear-gradient(180deg, #ffffff 0%, #fbfcff 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,.8);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.benefit:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(37,99,235,.3); }
.benefit__icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(180deg, #eaf1ff, #dfe9fb);
  border: 1px solid rgba(37,99,235,.12);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.8);
  display: flex; align-items: center; justify-content: center; font-size: 23px; margin-bottom: 18px;
}
.benefit h3 { font-size: 17px; margin-bottom: 8px; color: var(--ink); }
.benefit p { font-size: 14px; color: var(--muted); }

/* ---------- Seção: Mensagens sem custo ---------- */
.free { display: grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: center; }
.free__visual { display: flex; justify-content: center; }
.free__panel {
  position: relative; width: 300px; max-width: 100%;
  background:
    radial-gradient(360px 240px at 50% -10%, rgba(147, 197, 253, .28), transparent 60%),
    linear-gradient(150deg, #1e40af 0%, #12317e 55%, #0b1c3f 100%);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 28px; padding: 46px 32px; text-align: center;
  box-shadow: 0 44px 90px rgba(18, 49, 126, .5), inset 0 1px 0 rgba(255,255,255,.14);
}
.free__tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(74, 222, 128, .16); color: #6ee7b7; border: 1px solid rgba(74,222,128,.3);
  font-size: 12.5px; font-weight: 700; letter-spacing: .04em;
  padding: 5px 12px; border-radius: 999px; margin-bottom: 20px;
}
.free__price { font-size: 54px; font-weight: 800; color: #fff; letter-spacing: -0.02em; line-height: 1; }
.free__note { margin-top: 12px; color: #aebcd6; font-size: 14px; }
.free__body { display: flex; flex-direction: column; gap: 18px; }
.free__body p { color: var(--muted); font-size: 17px; max-width: 520px; }
.free__list { list-style: none; display: flex; flex-wrap: wrap; gap: 12px; margin-top: 4px; }
.free__list li {
  display: inline-flex; align-items: center; gap: 10px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 10px 16px; font-size: 14.5px; font-weight: 600; color: var(--ink);
  box-shadow: var(--shadow-sm);
}
.free__check {
  width: 20px; height: 20px; border-radius: 50%; background: #16a34a; color: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700;
}

/* ---------- CTA ---------- */
.cta { padding: 40px 0 110px; }
.cta__box {
  position: relative; overflow: hidden;
  background:
    radial-gradient(680px 320px at 85% -10%, rgba(147, 197, 253, .28), transparent 60%),
    radial-gradient(560px 300px at 5% 110%, rgba(59, 130, 246, .3), transparent 60%),
    linear-gradient(120deg, #16318f 0%, #1d4ed8 48%, #2c2a8a 100%);
  color: #fff;
  border-radius: 30px; padding: 68px 48px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
  box-shadow: 0 40px 90px rgba(29, 78, 216, .3), inset 0 1px 0 rgba(255,255,255,.16);
}
.cta__box::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px 200px at 50% -20%, rgba(255,255,255,.16), transparent 70%);
  pointer-events: none;
}
.cta__box h2 { font-size: clamp(28px, 4vw, 44px); }
.cta__box p { color: rgba(255,255,255,.88); font-size: 17px; }
.cta__box .btn { margin-top: 8px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid rgba(37, 99, 235, .16); padding: 28px 0; background: linear-gradient(180deg, #0a1226 0%, #050a18 100%); }
.footer__inner { display: flex; align-items: center; justify-content: space-between; }
.footer__brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: #fff; }
.footer__note { color: var(--muted-light); font-size: 14px; }

/* ---------- Reveal on scroll ---------- */
.wa__device, .benefit, .grid__cell, .config__preview, .demo__stage {
  opacity: 0; transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
}
.wa__device.is-visible, .benefit.is-visible, .grid__cell.is-visible,
.config__preview.is-visible, .demo__stage.is-visible {
  opacity: 1; transform: translateY(0);
}

/* ---------- Responsivo ---------- */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; text-align: center; }
  .hero__copy { align-items: center; }
  .hero__copy p { margin: 0 auto; }
  .hero__visual { margin-top: 24px; }
  .config, .demo, .wa, .free { grid-template-columns: 1fr; }
  .config__preview .chat { margin: 0 auto; }
  .wa__visual { margin-top: 12px; }
  .grid--4, .grid--benefits { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .nav__links { display: none; }
  .grid--4, .grid--benefits { grid-template-columns: 1fr; }
  .wa__visual { flex-direction: column; gap: 28px; }
  .wa__connector { transform: rotate(90deg); }
  .cta__box { padding: 44px 24px; }
}