/* ==========================================================================
   TelevendasChat — Landing Page v2
   CSS organizado por: 1) reset/base  2) design tokens  3) layout utilitário
   4) componentes  5) seções  6) responsivo
   Sem framework — CSS puro, para performance e controle total.
   ========================================================================== */

/* ---------- 1. Reset mínimo ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.15; }

/* ---------- 2. Design tokens ---------- */
:root {
  /* cor — base neutra escura + laranja de marca como accent de ação */
  --ink-950: #0b0f17;
  --ink-900: #12161f;
  --ink-700: #3a4150;
  --ink-500: #667085;
  --ink-300: #cdd3dd;
  --ink-200: #e3e7ee;
  --ink-100: #f1f3f7;
  --bg: #ffffff;
  --bg-subtle: #f8f9fc;

  --brand: #ff9900;
  --brand-dark: #e08300;
  --brand-50: #fff6ea;
  --brand-100: #ffe9c7;

  --good: #17a34a;
  --good-50: #ecfdf3;
  --bad: #e11d48;
  --bad-50: #fef1f4;

  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-pill: 999px;

  --shadow-card: 0 1px 2px rgba(11,15,23,.04), 0 8px 24px rgba(11,15,23,.06);
  --shadow-card-hover: 0 1px 2px rgba(11,15,23,.04), 0 16px 40px rgba(11,15,23,.10);
  --shadow-brand-glow: 0 8px 30px rgba(255,153,0,.25);

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;

  --container-w: 1180px;
}

/* ---------- 3. Base ---------- */
body {
  font-family: var(--font-body);
  color: var(--ink-900);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink-950);
  color: #fff;
  padding: .75rem 1.25rem;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 999;
}
.skip-link:focus { left: 0; }

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

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}
.container--narrow { max-width: 760px; }

.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand-dark);
  margin-bottom: .9rem;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 1.4rem + 2vw, 3rem);
  letter-spacing: -.03em;
  color: var(--ink-950);
}

.section { padding-block: clamp(3.5rem, 3rem + 3vw, 7rem); }
.section--alt { background: var(--bg-subtle); }

.section__head { max-width: 700px; margin-bottom: 3rem; }
.section__head--center { margin-inline: auto; text-align: center; }
.section__lead { margin-top: 1.1rem; font-size: 1.05rem; color: var(--ink-500); line-height: 1.7; }

.grid { display: grid; gap: 1.5rem; }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 4. Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 3rem;
  padding-inline: 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: .95rem;
  white-space: nowrap;
  transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease, border-color .15s ease;
}
.btn--sm { min-height: 2.5rem; padding-inline: 1.15rem; font-size: .85rem; }
.btn--lg { min-height: 3.5rem; padding-inline: 2rem; font-size: 1rem; }
.btn--block { width: 100%; }

.btn--primary { background: var(--brand); color: #fff; box-shadow: var(--shadow-brand-glow); }
.btn--primary:hover { background: var(--brand-dark); transform: translateY(-2px); }

.btn--ghost { background: transparent; color: var(--ink-900); border: 1px solid var(--ink-200); }
.btn--ghost:hover { border-color: var(--brand); background: var(--brand-50); }

.btn--outline { background: #fff; color: var(--ink-900); border: 1px solid var(--ink-200); }
.btn--outline:hover { border-color: var(--brand); color: var(--brand-dark); }

.btn--dark { background: var(--ink-950); color: #fff; }
.btn--dark:hover { background: #000; transform: translateY(-2px); }

/* ---------- 5. Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--ink-100);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .85rem; }

.brand { display: flex; align-items: center; gap: .6rem; }
.brand__mark {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  border-radius: 11px;
  background: var(--ink-950);
  color: var(--brand);
  flex-shrink: 0;
}
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__name { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: -.02em; color: var(--ink-950); }
.brand__accent { color: var(--brand); }
.brand__tag { font-size: .65rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-500); }
.brand--footer .brand__mark { display: none; }

.nav { display: none; align-items: center; gap: 2rem; font-size: .92rem; font-weight: 600; color: var(--ink-700); }
.nav a:hover { color: var(--ink-950); }

.header__actions { display: flex; align-items: center; gap: .75rem; }

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--ink-200);
}
.nav-toggle span { display: block; width: 18px; height: 2px; margin-inline: auto; background: var(--ink-900); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  padding: 1rem 1.5rem 1.5rem;
  border-top: 1px solid var(--ink-100);
  background: #fff;
}
.nav-mobile a { padding: .75rem .25rem; font-weight: 600; color: var(--ink-700); border-bottom: 1px solid var(--ink-100); }
.nav-mobile .btn { margin-top: .75rem; }
.nav-mobile[hidden] { display: none; }

/* ---------- 6. Hero ---------- */
.hero { position: relative; overflow: hidden; padding-block: clamp(3rem, 2rem + 4vw, 6rem); }
.hero__glow {
  position: absolute; inset: -20% -10% auto -10%; height: 700px;
  background: radial-gradient(60% 60% at 30% 20%, var(--brand-100) 0%, transparent 70%),
              radial-gradient(50% 50% at 80% 10%, #e9f1ff 0%, transparent 70%);
  z-index: -1;
}
.hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 3rem; align-items: center; }

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 1.4rem + 3vw, 3.6rem);
  letter-spacing: -.035em;
  line-height: 1.06;
  color: var(--ink-950);
}
.hero__lead { margin-top: 1.35rem; font-size: 1.1rem; color: var(--ink-500); max-width: 46ch; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2rem; }

.hero__stats { margin-top: 3rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.hero__stats li {
  background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-md);
  padding: 1.1rem; box-shadow: var(--shadow-card);
}
.hero__stat-value { display: block; font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; color: var(--ink-950); }
.hero__stat-label { display: block; margin-top: .2rem; font-size: .85rem; font-weight: 700; color: var(--ink-900); }
.hero__stat-desc { display: block; margin-top: .35rem; font-size: .8rem; color: var(--ink-500); line-height: 1.5; }

/* Mockup do WhatsApp */
.hero__visual { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.phone {
  width: 100%; max-width: 340px;
  background: linear-gradient(180deg, #f3f6fb, #e7ecf5);
  border: 10px solid var(--ink-950);
  border-radius: 2.4rem;
  box-shadow: var(--shadow-card-hover);
  overflow: hidden;
}
.phone__notch { height: 22px; background: var(--ink-950); border-radius: 0 0 14px 14px; width: 40%; margin-inline: auto; }
.phone__header {
  display: flex; align-items: center; gap: .65rem;
  background: var(--ink-950); color: #fff;
  padding: .9rem 1rem 1.1rem;
}
.phone__avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--brand-50); display: grid; place-items: center; font-size: 1.1rem; }
.phone__title { font-weight: 700; font-size: .92rem; }
.phone__status { display: flex; align-items: center; gap: .35rem; font-size: .72rem; color: #a7f3c7; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: #22c55e; display: inline-block; }
.dot--brand { background: var(--brand); }

.phone__body { padding: 1rem .85rem 1.4rem; display: flex; flex-direction: column; gap: .5rem; min-height: 380px; }
.bubble { max-width: 82%; padding: .55rem .8rem; border-radius: 1rem; font-size: .82rem; line-height: 1.45; box-shadow: 0 1px 1px rgba(0,0,0,.04); }
.bubble--in { align-self: flex-start; background: #fff; border-bottom-left-radius: .25rem; color: var(--ink-900); }
.bubble--out { align-self: flex-end; background: #d9fdd3; border-bottom-right-radius: .25rem; color: #0b3d21; }
.phone__typing { align-self: flex-start; display: flex; gap: 4px; background: #fff; padding: .6rem .8rem; border-radius: 1rem; border-bottom-left-radius: .25rem; }
.phone__typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-300); animation: blink 1.2s infinite ease-in-out; }
.phone__typing span:nth-child(2) { animation-delay: .2s; }
.phone__typing span:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }

.hero__visual-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .78rem; font-weight: 600; color: var(--ink-500);
  background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-pill);
  padding: .5rem .9rem; box-shadow: var(--shadow-card);
}

/* ---------- 7. Comparação (o-problema) ---------- */
/* Tratamento sóbrio de propósito: sem gradiente, sem badge circular colorido —
   a cor entra só no marcador de cada item, não decorando a seção inteira. */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: stretch; }
.compare__col { border-radius: var(--radius-lg); padding: 1.85rem; border: 1px solid var(--ink-100); background: #fff; border-top: 3px solid; }
.compare__col--bad { border-top-color: var(--bad); }
.compare__col--good { border-top-color: var(--good); }
.compare__kicker { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-500); }
.compare__title { margin-top: .3rem; font-family: var(--font-display); font-size: 1.35rem; font-weight: 700; color: var(--ink-950); }
.compare__list { margin-top: 1.4rem; display: flex; flex-direction: column; gap: .75rem; }
.compare__list li { position: relative; padding-left: 1.2rem; font-size: .92rem; color: var(--ink-700); line-height: 1.6; }
.compare__list li::before { content: ''; position: absolute; left: 0; top: .5em; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.compare__col--bad .compare__list li::before { color: var(--bad); }
.compare__col--good .compare__list li::before { color: var(--good); }

/* ---------- 8. Como funciona (flow) ---------- */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.25rem; counter-reset: step; }
.flow__step {
  background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem; box-shadow: var(--shadow-card);
  transition: transform .2s ease, box-shadow .2s ease;
}
.flow__step:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.flow__num { font-family: var(--font-display); font-size: .85rem; font-weight: 700; color: var(--brand); }
.flow__step h3 { margin-top: .6rem; font-size: 1.05rem; color: var(--ink-950); }
.flow__step p { margin-top: .55rem; font-size: .87rem; color: var(--ink-500); line-height: 1.6; }

/* ---------- 9. Diferenciais (lista editorial, sem ícone-em-quadrado repetido) ---------- */
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--ink-100); }
.feature-list__item {
  display: flex; gap: 1.25rem;
  padding: 1.85rem 1.5rem 1.85rem 0;
  border-bottom: 1px solid var(--ink-100);
}
.feature-list__item:nth-child(odd) { padding-left: 0; border-right: 1px solid var(--ink-100); padding-right: 1.75rem; }
.feature-list__item:nth-child(even) { padding-left: 1.75rem; }
.feature-list__mark {
  flex-shrink: 0;
  font-family: var(--font-display); font-weight: 700; font-size: .85rem;
  color: var(--brand-dark);
}
.feature-list__item h3 { font-size: 1.05rem; color: var(--ink-950); }
.feature-list__item p { margin-top: .5rem; font-size: .88rem; color: var(--ink-500); line-height: 1.6; }

/* ---------- 10. Autoridade ---------- */
.authority-badges { display: flex; flex-wrap: wrap; gap: .75rem; }
.authority-badges div {
  font-size: .82rem; font-weight: 700; color: var(--ink-700);
  background: #fff; border: 1px solid var(--ink-200); border-radius: var(--radius-pill);
  padding: .55rem 1.1rem;
}

/* ---------- 11. Planos ---------- */
.value-anchor {
  background: var(--ink-950); color: #fff;
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  margin-bottom: 3rem;
}
.value-anchor p { font-size: 1rem; line-height: 1.6; max-width: 62ch; }
.pricing-note { margin-top: 2rem; text-align: center; font-size: .88rem; color: var(--ink-500); }

.pricing { align-items: stretch; }
.price-card {
  position: relative;
  background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex; flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease;
}
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.price-card__kicker { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; color: var(--ink-500); }
.price-card h3 { margin-top: .5rem; font-family: var(--font-display); font-size: 1.6rem; color: var(--ink-950); }
.price-card__fit { margin-top: .9rem; font-size: .82rem; font-weight: 600; color: var(--brand-dark); }
.price-card__desc { margin-top: .5rem; font-size: .87rem; color: var(--ink-500); min-height: 42px; line-height: 1.55; }
.price-card__volume {
  margin-top: 1.1rem;
  padding: .65rem .85rem;
  background: var(--brand-50);
  border-radius: var(--radius-sm);
  font-size: .82rem; color: var(--ink-700);
}
.price-card__volume strong {
  display: block;
  font-family: var(--font-display); font-size: 1.3rem;
  color: var(--ink-950); line-height: 1.15;
}
.price-card__list { margin-top: 1rem; display: flex; flex-direction: column; gap: .65rem; flex-grow: 1; }
.price-card__list li { position: relative; padding-left: 1.3rem; font-size: .85rem; color: var(--ink-700); line-height: 1.5; }
.price-card__list li::before {
  content: ''; position: absolute; left: 0; top: .45em; width: 14px; height: 14px;
  background: var(--good); border-radius: 50%;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/10px no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/10px no-repeat;
}
.price-card .btn { margin-top: 1.75rem; }

.price-card--highlight { border: 2px solid var(--brand); box-shadow: var(--shadow-brand-glow); }
.price-card__badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--brand); color: #fff; font-size: .72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .08em;
  padding: .4rem 1rem; border-radius: var(--radius-pill); box-shadow: var(--shadow-brand-glow);
  white-space: nowrap;
}
.price-card--enterprise { background: var(--ink-950); border-color: var(--ink-950); }
.price-card--enterprise .price-card__kicker { color: var(--ink-300); }
.price-card--enterprise h3 { color: #fff; }
.price-card--enterprise .price-card__fit { color: var(--brand); }
.price-card--enterprise .price-card__desc { color: var(--ink-300); }
.price-card--enterprise .price-card__list li { color: var(--ink-200); }
.price-card--enterprise .price-card__volume { background: rgba(255,255,255,.08); color: var(--ink-200); }
.price-card--enterprise .price-card__volume strong { color: #fff; }
.price-card--highlight .price-card__volume { background: var(--brand-100); }

/* ---------- 12. FAQ / accordion ---------- */
.accordion { display: flex; flex-direction: column; gap: .85rem; margin-top: 2.5rem; }
.accordion__item { background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-md); overflow: hidden; }
.accordion__trigger {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.25rem 1.5rem; text-align: left; font-weight: 600; font-size: .95rem; color: var(--ink-950);
}
.accordion__trigger::after {
  content: '+'; flex-shrink: 0; font-size: 1.4rem; color: var(--brand); font-weight: 400;
  transition: transform .25s ease;
}
.accordion__trigger[aria-expanded="true"]::after { transform: rotate(45deg); }
.accordion__panel { padding: 0 1.5rem 1.4rem; }
.accordion__panel p { font-size: .9rem; color: var(--ink-500); line-height: 1.7; }
.accordion__panel[hidden] { display: none; }

/* ---------- 12b. Linha de confiança sob os CTAs ---------- */
.hero__trust { margin-top: .9rem; font-size: .85rem; color: var(--ink-500); }
.hero__trust--dark { color: var(--ink-500); }

/* ---------- 12c. CTA fixo mobile ---------- */
.mobile-cta {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 40;
  padding: .75rem 1rem calc(.75rem + env(safe-area-inset-bottom, 0px));
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(6px);
  border-top: 1px solid var(--ink-100);
  box-shadow: 0 -8px 24px rgba(11, 15, 23, .1);
}
.mobile-cta[hidden] { display: none; }
@media (min-width: 641px) {
  .mobile-cta { display: none !important; }
}

/* ---------- 13. CTA final ---------- */
.cta-final__card {
  background: linear-gradient(135deg, var(--brand-50), #fff 55%, #eef4ff);
  border: 1px solid var(--brand-100);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 1.5rem + 2vw, 3.5rem);
  max-width: 780px;
}
.cta-final__lead { margin-top: 1.1rem; font-size: 1.05rem; color: var(--ink-500); max-width: 60ch; }

/* ---------- 14. Footer ---------- */
.footer { border-top: 1px solid var(--ink-100); padding-block: 2.5rem; }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem; }
.footer__nav { display: flex; gap: 1.75rem; font-size: .88rem; color: var(--ink-500); font-weight: 600; }
.footer__nav a:hover { color: var(--ink-950); }
.footer__copy { font-size: .82rem; color: var(--ink-500); }

/* ==========================================================================
   RESPONSIVO
   ========================================================================== */

/* Desktop grande: mostra nav, esconde hambúrguer */
@media (min-width: 960px) {
  .nav { display: flex; }
  .nav-toggle { display: none; }
  .nav-mobile { display: none !important; }
}

/* Tablet */
@media (max-width: 959px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { order: -1; max-width: 380px; margin-inline: auto; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .compare { grid-template-columns: 1fr; }
}

/* Celular */
@media (max-width: 640px) {
  .container { padding-inline: 1.25rem; }
  .hero__stats { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .feature-list__item:nth-child(odd) { border-right: 0; padding-right: 0; }
  .feature-list__item:nth-child(even) { padding-left: 0; }
  .header__actions .btn--sm { display: none; } /* no mobile o CTA fica só dentro do menu, evita 2 CTAs disputando espaço com o hambúrguer */
  .price-card--highlight { order: -1; }
}