/* atenda.ai / atienda.ai. Identidade visual: brand/README.md */
:root {
  --noite: #0B1F17;
  --noite-2: #17352A;
  --noite-linha: #2F4A3F;
  --vivo: #1FCB6B;
  --floresta: #0E5A3A;
  --menta: #DDF6E7;
  --papel: #F6F4EE;
  --papel-2: #EFECE3;
  --branco: #FFFFFF;
  --linha: #D9D5C9;
  --suave: #3D4F47;
  --suave-escuro: #A9C2B6;
  --erro: #A8281A;

  --sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --wrap: 1200px;
  --gutter: 24px;
  --radius: 24px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  color: var(--noite);
  background: var(--papel);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
p, h1, h2, h3, ul, ol, dl, dd, fieldset { margin: 0; padding: 0; }
ul, ol { list-style: none; }
fieldset { border: 0; min-width: 0; }
button, input { font: inherit; color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--vivo); outline-offset: 3px; border-radius: 6px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.wrap-narrow { max-width: 760px; }
.mono { font-family: var(--mono); font-size: 13px; letter-spacing: 0.02em; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 100; padding: 10px 16px; border-radius: 10px; background: var(--noite); color: var(--branco); }
.skip:focus { top: 12px; }

/* ---------- tipografia */
h1, h2, h3, .years, .facts dt { font-stretch: 125%; font-weight: 700; letter-spacing: -0.015em; text-wrap: balance; }
h1 { font-size: clamp(38px, 5.6vw, 66px); line-height: 1.03; }
h2 { font-size: clamp(30px, 4vw, 48px); line-height: 1.08; }
h3 { font-size: 21px; line-height: 1.25; letter-spacing: -0.005em; }
.lead { font-size: clamp(17px, 1.6vw, 20px); line-height: 1.55; color: var(--suave); max-width: 60ch; }
.overline {
  font-stretch: 125%; font-weight: 400; font-size: 12.5px; line-height: 1.5;
  letter-spacing: 0.3em; text-transform: uppercase; color: var(--floresta);
}
/* o ponto da marca no fim dos títulos */
.pt { display: inline-block; width: 0.2em; height: 0.2em; margin-left: 0.07em; border-radius: 50%; background: var(--vivo); }
.pt-white { background: var(--branco); }

/* ---------- o ponto vivo e a onda */
.live-dot { position: relative; flex: none; display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--vivo); }
.live-dot::after { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--vivo); animation: ring 2.4s ease-out infinite; }
@keyframes ring { 0% { transform: scale(1); opacity: .6; } 100% { transform: scale(3.2); opacity: 0; } }

.wave { display: inline-flex; align-items: center; gap: 3px; height: 28px; flex: none; }
.wave i { display: block; width: 4px; border-radius: 2px; background: var(--vivo); animation: talk 1.1s ease-in-out infinite; }
.wave i:nth-child(1), .wave i:nth-child(5) { height: 34%; }
.wave i:nth-child(2), .wave i:nth-child(4) { height: 66%; }
.wave i:nth-child(3) { height: 100%; }
.wave i:nth-child(2) { animation-delay: .18s; }
.wave i:nth-child(3) { animation-delay: .36s; }
.wave i:nth-child(4) { animation-delay: .12s; }
.wave i:nth-child(5) { animation-delay: .3s; }
.wave-lg { height: 60px; gap: 5px; }
.wave-lg i { width: 8px; border-radius: 4px; }
.wave-xl { height: 120px; gap: 10px; }
.wave-xl i { width: 16px; border-radius: 8px; }
.wave-dark i { background: var(--noite); }
@keyframes talk { 0%, 100% { transform: scaleY(.3); } 50% { transform: scaleY(1); } }

/* ---------- botões */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 54px; padding: 0 28px; border: 0; border-radius: 27px;
  font-weight: 700; font-size: 16px; line-height: 1.2; text-decoration: none; cursor: pointer;
  transition: transform .15s ease, background-color .15s ease, color .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-small { min-height: 46px; padding: 0 22px; font-size: 15px; font-weight: 600; }
.btn-block { width: 100%; }
.btn-vivo { background: var(--vivo); color: var(--noite); }
.btn-vivo:hover { background: #35D97D; }
.btn-dark { background: var(--noite); color: var(--branco); }
.btn-dark:hover { background: var(--noite-2); }
.btn-ghost { padding-inline: 12px; background: transparent; color: inherit; }
.btn-ghost:hover { color: var(--floresta); }
.btn[disabled] { opacity: .6; cursor: progress; transform: none; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; }

/* ---------- cabeçalho */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 244, 238, .88); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--linha);
}
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; }
.logo { display: flex; align-items: center; min-height: 44px; flex: none; }
.logo img { height: 26px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 30px; font-size: 15px; font-weight: 500; }
.site-nav > a:not(.btn) { padding: 12px 0; text-decoration: none; }
.site-nav > a:not(.btn):hover { color: var(--floresta); }
.lang { display: inline-flex; align-items: center; gap: 2px; font-family: var(--mono); font-size: 13px; }
.lang a, .lang strong { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; min-height: 40px; border-radius: 20px; text-decoration: none; }
.lang strong { background: var(--noite); color: var(--branco); font-weight: 500; }
.lang a { color: var(--suave); }
.lang a:hover { color: var(--noite); background: var(--papel-2); }
.menu-toggle { display: none; align-items: center; gap: 8px; min-height: 44px; padding: 0 14px; border: 1px solid var(--linha); border-radius: 22px; background: transparent; font-weight: 600; font-size: 15px; cursor: pointer; }

/* ---------- hero */
.hero { padding: clamp(48px, 7vw, 96px) 0 0; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero-copy { display: flex; flex-direction: column; gap: 26px; }

.call-card {
  display: flex; flex-direction: column; gap: 22px;
  padding: 28px; border-radius: 28px; background: var(--noite); color: var(--branco);
  box-shadow: 0 30px 60px -28px rgba(11, 31, 23, .55);
}
.call-top { display: flex; justify-content: space-between; align-items: center; color: var(--suave-escuro); }
.status { display: inline-flex; align-items: center; gap: 12px; font-family: var(--mono); font-size: 13px; }
.call-who { display: flex; align-items: center; gap: 18px; }
.call-who strong { display: block; font-stretch: 125%; font-size: 18px; }
.call-who span { font-size: 14px; color: var(--suave-escuro); }
.bubbles { display: flex; flex-direction: column; gap: 10px; }
.bubble { max-width: 86%; padding: 12px 16px; font-size: 15px; line-height: 1.45; }
.bubble-c { align-self: flex-start; border-radius: 16px 16px 16px 4px; background: var(--noite-2); color: var(--branco); }
.bubble-a { align-self: flex-end; border-radius: 16px 16px 4px 16px; background: var(--menta); color: var(--noite); }

.strip {
  display: flex; flex-wrap: wrap; gap: 10px 0; margin-top: clamp(48px, 7vw, 88px); padding: 22px 0;
  border-top: 1px solid var(--linha);
  font-stretch: 125%; font-weight: 300; font-size: 13px; letter-spacing: 0.3em; text-transform: uppercase;
}
.strip li { display: inline-flex; align-items: center; }
.strip li + li::before { content: ""; width: 5px; height: 5px; margin: 0 18px; border-radius: 50%; background: var(--vivo); }

/* ---------- seções */
.section { padding: clamp(72px, 9vw, 128px) 0; }
.section-head { display: flex; flex-direction: column; gap: 18px; max-width: 800px; margin-bottom: clamp(40px, 5vw, 64px); }
.dark { background: var(--noite); color: var(--branco); }
.dark .overline { color: var(--vivo); }
.dark .lead, .dark p { color: var(--suave-escuro); }
.dark .years, .dark .bubble-c { color: var(--branco); }
.dark .bubble-a { color: var(--noite); }
.tinted { background: var(--branco); }
.vivo { background: var(--vivo); }
.vivo .overline, .vivo .lead { color: var(--noite); }

/* ---------- canais */
.channel-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.channel-card { display: flex; flex-direction: column; gap: 12px; padding: 24px 24px 30px; border-radius: var(--radius); background: var(--noite-2); }
.channel-card h3 { color: var(--branco); }
.channel-card > p:last-child { font-size: 16px; }
.channel-art {
  display: flex; flex-direction: column; justify-content: center; gap: 10px;
  height: 190px; margin-bottom: 14px; padding: 18px; border-radius: 16px; background: var(--noite);
}
.channel-art .bubble { font-size: 14px; }
.art-chat .bubble-c { background: var(--noite-2); }
.art-wavoz { flex-direction: row; align-items: center; justify-content: center; gap: 22px; }
.ring-call { position: relative; display: grid; place-items: center; width: 64px; height: 64px; flex: none; border-radius: 50%; background: var(--vivo); color: var(--noite); }
.ring { position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--vivo); animation: ring-soft 2.4s ease-out infinite; }
.ring-2 { animation-delay: 1.2s; }
@keyframes ring-soft { 0% { transform: scale(1); opacity: .55; } 100% { transform: scale(1.9); opacity: 0; } }
.art-voice { display: flex; flex-direction: column; gap: 8px; color: var(--suave-escuro); }
.ext-list { display: flex; flex-direction: column; gap: 8px; }
.ext-list li { display: flex; align-items: center; gap: 12px; padding: 9px 14px; border-radius: 12px; border: 1px solid var(--noite-linha); font-size: 14px; color: var(--suave-escuro); }
.ext-list li span:nth-child(2) { flex: 1; }
.ext-list .is-agent { border-color: var(--vivo); background: rgba(31, 203, 107, .1); color: var(--branco); }

/* ---------- segmentos */
.seg { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: clamp(24px, 3.5vw, 56px); align-items: start; }
.seg-tabs { display: flex; flex-direction: column; gap: 6px; }
.seg-tab {
  display: flex; align-items: center; gap: 12px; width: 100%; min-height: 52px; padding: 0 16px;
  border: 1px solid transparent; border-radius: 16px; background: transparent;
  font-weight: 600; font-size: 16px; text-align: left; cursor: pointer; color: var(--suave);
  transition: background-color .15s ease, color .15s ease;
}
.seg-tab:hover { background: var(--papel-2); color: var(--noite); }
.seg-tab[aria-selected="true"] { background: var(--noite); color: var(--branco); }
.seg-tab[aria-selected="true"] .icon { color: var(--vivo); }
.seg-panel { display: grid; grid-template-columns: minmax(0, 420px) minmax(0, 1fr); gap: clamp(24px, 3.5vw, 56px); align-items: start; border-radius: 30px; }
.seg-panel[hidden] { display: none !important; }

.device {
  display: flex; flex-direction: column; gap: 14px; min-height: 560px;
  padding: 20px; border-radius: 30px; background: var(--noite); color: var(--branco);
  box-shadow: 0 30px 60px -30px rgba(11, 31, 23, .6);
}
.device-head { display: flex; align-items: center; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid var(--noite-linha); }
.avatar { display: grid; place-items: center; width: 44px; height: 44px; flex: none; border-radius: 50%; background: var(--noite-2); }
.avatar .symbol { margin-bottom: 2px; }
.device-title { flex: 1; min-width: 0; }
.device-title strong { display: block; font-size: 15px; line-height: 1.3; }
.device-title .mono { font-size: 12px; color: var(--suave-escuro); }
.device-live { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--suave-escuro); }
.talk { display: flex; flex-direction: column; gap: 10px; flex: 1; }
.msg { display: flex; flex-direction: column; gap: 3px; max-width: 88%; }
.msg p { padding: 11px 15px; font-size: 15px; line-height: 1.45; }
.msg .who { font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--suave-escuro); }
.msg-c { align-self: flex-start; }
.msg-c p { border-radius: 16px 16px 16px 4px; background: var(--noite-2); }
.msg-a { align-self: flex-end; align-items: flex-end; }
.msg-a p { border-radius: 16px 16px 4px 16px; background: var(--menta); color: var(--noite); }
.pay { display: flex; align-items: center; gap: 14px; margin: 4px 0 0; padding: 12px; border-radius: 16px; background: var(--branco); color: var(--noite); }
.pay img { width: 112px; height: 112px; flex: none; border-radius: 6px; }
.pay figcaption { display: flex; flex-direction: column; gap: 4px; font-size: 15px; line-height: 1.3; }
.pay figcaption span { font-family: var(--mono); font-size: 11px; letter-spacing: .04em; color: var(--suave); }
.msg.is-waiting, .outcome.is-waiting { display: none; }
.msg.is-in, .outcome.is-in { animation: pop .32s ease-out both; }
@keyframes pop { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.typing p { display: inline-flex; align-items: center; gap: 4px; min-height: 42px; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .35; animation: blink 1s infinite; }
.typing i:nth-child(2) { animation-delay: .15s; }
.typing i:nth-child(3) { animation-delay: .3s; }
@keyframes blink { 0%, 100% { opacity: .25; } 50% { opacity: .9; } }
.outcome { display: flex; align-items: center; gap: 10px; padding: 11px 14px; border-radius: 12px; border: 1px solid var(--vivo); background: rgba(31, 203, 107, .1); font-size: 14px; font-weight: 600; }
.outcome .icon { color: var(--vivo); flex: none; }
.replay { align-self: center; display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 14px; border: 0; border-radius: 22px; background: transparent; color: var(--suave-escuro); font-size: 13px; cursor: pointer; }
.replay:hover { color: var(--branco); }

.seg-info { display: flex; flex-direction: column; gap: 22px; padding-top: 8px; }
.seg-info h3 { font-size: clamp(22px, 2.4vw, 30px); line-height: 1.15; letter-spacing: -0.01em; }
.seg-info .btn { align-self: flex-start; margin-top: 6px; }
.checks { display: flex; flex-direction: column; gap: 14px; }
.checks li { display: flex; gap: 12px; align-items: flex-start; }
.checks .icon { flex: none; margin-top: 4px; color: var(--floresta); }

/* ---------- como trabalhamos */
.how-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.how-head { position: sticky; top: 120px; margin-bottom: 0; }
.steps { display: flex; flex-direction: column; }
.steps li { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 16px; padding: 26px 0; border-top: 1px solid var(--linha); }
.steps li:last-child { border-bottom: 1px solid var(--linha); }
.step-n { padding-top: 5px; font-size: 14px; color: var(--floresta); }
.steps h3 { margin-bottom: 8px; }
.steps p { color: var(--suave); }
.caps { margin-top: clamp(48px, 6vw, 80px); }
.caps-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.caps-list li { display: inline-flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 24px; background: var(--menta); font-weight: 500; font-size: 15.5px; }
.cap-dot { width: 8px; height: 8px; flex: none; border-radius: 50%; background: var(--floresta); }

/* ---------- Blaster Labs */
.about-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.years { font-size: clamp(140px, 22vw, 300px); line-height: .82; letter-spacing: -0.05em; color: var(--branco); white-space: nowrap; }
.years .pt { width: .16em; height: .16em; margin-left: .04em; }
.about-years { display: flex; flex-direction: column; gap: 22px; }
.about-copy { display: flex; flex-direction: column; gap: 20px; }
.about-copy .lead { color: var(--suave-escuro); }
.waves-label { margin-top: clamp(56px, 7vw, 96px); }
.waves { position: relative; display: grid; grid-template-columns: repeat(var(--n, 6), minmax(0, 1fr)); margin-top: 28px; }
.waves::before { content: ""; position: absolute; left: 0; right: calc(100% / var(--n, 6) - 15px); top: 7px; height: 1px; background: var(--noite-linha); }
.waves li { position: relative; display: flex; flex-direction: column; gap: 16px; padding-right: 12px; font-stretch: 125%; font-weight: 600; font-size: 15px; color: var(--suave-escuro); }
.wave-dot { position: relative; width: 15px; height: 15px; border-radius: 50%; border: 2px solid var(--noite-linha); background: var(--noite); }
.waves .is-now { color: var(--branco); }
.waves .is-now .wave-dot { border-color: var(--vivo); background: var(--vivo); }
.waves .is-now .wave-dot::after { content: ""; position: absolute; inset: -2px; border-radius: 50%; border: 2px solid var(--vivo); animation: ring 2.4s ease-out infinite; }
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: clamp(48px, 6vw, 80px); padding-top: 36px; border-top: 1px solid var(--noite-linha); }
.facts dt { font-size: clamp(32px, 4vw, 48px); line-height: 1; color: var(--branco); }
.facts dd { margin-top: 10px; max-width: 30ch; font-size: 15px; color: var(--suave-escuro); }

/* ---------- termo com explicação (BBS): hover, foco ou toque */
.tip-host { position: relative; }
.tip-term {
  padding: 0; border: 0; background: none; font: inherit; color: inherit; letter-spacing: inherit; cursor: help;
  text-decoration: underline dotted var(--vivo); text-decoration-thickness: 2px; text-underline-offset: 5px;
}
.tip-term:hover, .tip.is-open .tip-term { color: var(--vivo); }
/* sem top: a caixa nasce logo abaixo da linha do termo; left: 0 a alinha com o parágrafo */
.tip-box {
  position: absolute; left: 0; z-index: 30; margin-top: 8px;
  display: flex; flex-direction: column; gap: 10px;
  width: min(460px, 100%); padding: 20px 22px; border-radius: 18px;
  background: var(--branco); color: var(--noite); box-shadow: 0 24px 50px -18px rgba(0, 0, 0, .55);
  font-family: var(--sans); font-stretch: 100%; font-weight: 400; font-size: 15px; line-height: 1.5; letter-spacing: 0; text-transform: none; text-align: left;
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity .16s ease, transform .16s ease, visibility 0s linear .3s;
}
.tip-box strong { font-stretch: 125%; font-size: 15px; }
.tip-box span { display: block; color: var(--suave); }
.tip:hover .tip-box, .tip:focus-within .tip-box, .tip.is-open .tip-box {
  opacity: 1; visibility: visible; transform: none; transition-delay: 0s;
}
.waves .tip-box { width: min(460px, calc(100vw - 2 * var(--gutter))); }

/* ---------- demo / lead */
.demo-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 5vw, 80px); align-items: start; }
.demo-head { margin-bottom: 0; }
.demo-wave { margin-top: 28px; }
.demo-card { padding: clamp(22px, 3vw, 36px); border-radius: 30px; background: var(--branco); box-shadow: 0 30px 60px -32px rgba(11, 31, 23, .5); }
.lead-form { display: flex; flex-direction: column; gap: 24px; }
legend, .field > span { display: block; margin-bottom: 10px; padding: 0; font-weight: 700; font-size: 15px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.chip span { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 16px; border: 1px solid var(--linha); border-radius: 22px; font-size: 15px; font-weight: 500; transition: background-color .12s ease, border-color .12s ease; }
.chip:hover span { border-color: var(--noite); }
.chip input:checked + span { border-color: var(--noite); background: var(--noite); color: var(--branco); }
.chip input:checked + span .icon { color: var(--vivo); }
.chip input:focus-visible + span { outline: 3px solid var(--vivo); outline-offset: 2px; }
.fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field-wide { grid-column: 1 / -1; }
.field input, .field textarea { width: 100%; min-height: 52px; padding: 0 16px; border: 1px solid var(--linha); border-radius: 14px; background: var(--papel); font-size: 16px; }
.field textarea { display: block; padding: 14px 16px; line-height: 1.5; resize: vertical; font-family: inherit; color: inherit; }
.field input:hover, .field textarea:hover { border-color: var(--suave); }
.field input:focus-visible, .field textarea:focus-visible { outline: 3px solid var(--vivo); outline-offset: 1px; border-color: var(--noite); }
.field input[aria-invalid="true"] { border-color: var(--erro); }
.form-error { padding: 12px 16px; border-radius: 12px; background: #FBE9E6; color: var(--erro); font-size: 15px; font-weight: 500; }
.consent { font-size: 13.5px; color: var(--suave); }
.contact-card { border: 1px solid var(--linha); }
.demo-head .checks { margin-top: 8px; }
.demo-head .actions { margin-top: 8px; }
.live-dot-dark, .live-dot-dark::after { background: var(--noite); border-color: var(--noite); }
.live-dot-dark::after { background: transparent; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.lead-done { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; padding: 12px 4px; }
.lead-done h3 { font-size: clamp(26px, 3vw, 34px); }
.lead-done p { color: var(--suave); }
.done-mark { display: grid; place-items: center; width: 96px; height: 96px; border-radius: 50%; background: var(--noite); }

/* ---------- rodapé e botão flutuante */
.site-footer { padding: 56px 0 96px; background: var(--noite); color: var(--suave-escuro); border-top: 1px solid var(--noite-linha); font-size: 15px; }
.footer-row { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 32px; }
.footer-brand { display: flex; flex-direction: column; gap: 18px; }
.footer-brand .overline { color: var(--suave-escuro); font-weight: 300; }
.footer-meta { display: flex; flex-direction: column; gap: 6px; text-align: right; }
.footer-meta a { color: var(--branco); text-underline-offset: 3px; }
.footer-meta a:hover { color: var(--vivo); }

.launcher {
  position: fixed; right: 20px; bottom: 20px; z-index: 40;
  display: inline-flex; align-items: center; gap: 14px; min-height: 54px; padding: 0 24px 0 22px;
  border-radius: 27px; background: var(--noite); color: var(--branco); border: 1px solid var(--noite-linha);
  font-weight: 700; font-size: 15px; text-decoration: none;
  box-shadow: 0 18px 40px -16px rgba(11, 31, 23, .7);
  transition: opacity .2s ease, transform .2s ease;
}
.launcher:hover { transform: translateY(-2px); }
.launcher.is-away { opacity: 0; pointer-events: none; transform: translateY(12px); }

/* ---------- página legal */
.legal h1 { margin: 14px 0 12px; font-size: clamp(32px, 4vw, 46px); }
.legal h2 { margin: 36px 0 10px; font-size: 22px; }
.legal p { color: var(--suave); }
.legal .btn { margin-top: 40px; }

/* ---------- responsivo */
@media (max-width: 1080px) {
  .seg { grid-template-columns: minmax(0, 1fr); }
  .seg-tabs { flex-direction: row; overflow-x: auto; margin-inline: calc(var(--gutter) * -1); padding: 4px var(--gutter); scrollbar-width: none; }
  .seg-tabs::-webkit-scrollbar { display: none; }
  .seg-tab { width: auto; flex: none; white-space: nowrap; border-color: var(--linha); }
}
@media (max-width: 1140px) {
  .menu-toggle { display: inline-flex; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%; display: none;
    flex-direction: column; align-items: stretch; gap: 4px; padding: 12px var(--gutter) 24px;
    background: var(--papel); border-bottom: 1px solid var(--linha); font-size: 17px;
  }
  .site-nav.is-open { display: flex; }
  .site-nav > a:not(.btn) { padding: 12px 0; }
  .lang { margin: 6px 0 10px; }
}
@media (max-width: 960px) {
  .hero-grid, .how-grid, .about-grid, .demo-grid { grid-template-columns: minmax(0, 1fr); }
  .how-head { position: static; }
  .channel-grid { grid-template-columns: minmax(0, 1fr); }
  .channel-art { height: auto; min-height: 170px; }
}
@media (max-width: 760px) {
  :root { --gutter: 20px; }
  .logo img { height: 22px; }
  .header-row { gap: 12px; }
  body { font-size: 16.5px; }
  .seg-panel { grid-template-columns: minmax(0, 1fr); }
  .device { min-height: 0; }
  .fields { grid-template-columns: minmax(0, 1fr); }
  .facts { grid-template-columns: minmax(0, 1fr); }
  .waves { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .waves::before { left: 7px; right: auto; top: 0; bottom: 10%; width: 1px; height: auto; }
  .waves li { flex-direction: row; align-items: center; }
  .strip { letter-spacing: .2em; font-size: 12px; }
  .strip li + li::before { margin: 0 12px; }
  .footer-meta { text-align: left; }
  .actions .btn-vivo, .seg-info .btn { width: 100%; }
  .launcher span:last-child { display: none; }
  .launcher { padding: 0; width: 56px; height: 56px; justify-content: center; }
  .launcher .live-dot { width: 14px; height: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}