/* ===== GNT Internet — identidade visual extraída da logomarca oficial =====
   Verde escuro #15361c · Vermelho #ee2123 · Marrom-café #261410 · Branco */
:root {
  --green: #15361c;        /* verde da marca — botões principais */
  --green-hover: #1e4a28;
  --green-mid: #2e6b3c;    /* apoio (hero, detalhes) */
  --green-dark: #0d2312;   /* seção link dedicado */
  --red: #ee2123;          /* vermelho da marca — destaques comerciais */
  --red-hover: #c81b1d;
  --ink: #261410;          /* marrom-café das letras GNT — textos */
  --ink-soft: #5c4f49;
  --bg: #ffffff;           /* fundos principais */
  --bg-soft: #f4f4f2;      /* seções alternadas (cinza claro) */
  --line: #e3e1dd;
  --whats: #25d366;
  --whats-dark: #1eb857;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(38, 20, 16, .10);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { width: min(1120px, 92%); margin-inline: auto; }
.container-narrow { width: min(760px, 92%); margin-inline: auto; }
.center { text-align: center; margin-top: 2rem; }

h1 { font-size: clamp(1.9rem, 4.5vw, 2.9rem); line-height: 1.15; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: .5rem; text-align: center; }
.section-sub { text-align: center; color: var(--ink-soft); margin-bottom: 2rem; }

.icon { width: 1.25em; height: 1.25em; flex: none; }

/* ===== Botões (grandes e legíveis — RNF05) ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .8rem 1.5rem; border-radius: 999px; font-weight: 700; font-size: .97rem;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  cursor: pointer; border: 2px solid transparent; text-align: center;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 6px 18px rgba(21, 54, 28, .35); }
.btn-primary:hover { background: var(--green-hover); }
.btn-ghost { border-color: rgba(255, 255, 255, .55); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); }
.btn-outline { border-color: var(--green); color: var(--green); }
.btn-outline:hover { background: var(--green); color: #fff; }
.btn-whats { background: var(--whats); color: #fff; box-shadow: 0 6px 18px rgba(37, 211, 102, .35); }
.btn-whats:hover { background: var(--whats-dark); }
.btn-lg { padding: 1rem 2rem; font-size: 1.05rem; }

/* ===== Header ===== */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .94); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 1.4rem; padding: .8rem 0; }
.logo { display: flex; align-items: center; gap: .6rem; font-size: 1.2rem; color: var(--green); font-weight: 600; }
.logo strong { color: var(--ink); }
.logo-mark { width: 42px; height: 42px; border-radius: 50%; box-shadow: 0 1px 4px rgba(38, 20, 16, .18); }
.nav { display: flex; gap: 1.3rem; margin-left: auto; font-weight: 500; color: var(--ink-soft); }
.nav a:hover { color: var(--green); }
.header .btn-whats { padding: .55rem 1.1rem; }
.menu-toggle { display: none; background: none; border: 0; cursor: pointer; padding: .4rem; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; transition: .2s; }

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 55%, var(--green-mid) 100%);
  color: #fff; overflow: hidden;
}
.hero-inner {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem;
  align-items: center; padding: 4.5rem 0 5rem;
}
.badge {
  display: inline-block; background: rgba(255, 255, 255, .14); color: #fff;
  border: 1px solid rgba(255, 255, 255, .35);
  padding: .3rem .9rem; border-radius: 999px; font-size: .85rem; font-weight: 600;
  margin-bottom: 1.1rem; letter-spacing: .02em;
}
.hero-text p { color: rgba(255, 255, 255, .88); margin: 1rem 0 1.8rem; font-size: 1.1rem; max-width: 34rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; }

.speed-card {
  background: rgba(255, 255, 255, .09); border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 22px; padding: 2rem; text-align: center; backdrop-filter: blur(6px);
  max-width: 300px; margin-inline: auto;
}
.speed-card p { margin-top: 1rem; color: rgba(255, 255, 255, .85); font-size: .95rem; }
.speed-ring { position: relative; width: 200px; margin-inline: auto; }
.speed-ring svg { width: 100%; transform: rotate(-90deg); }
.ring-bg, .ring-fg { fill: none; stroke-width: 10; stroke-linecap: round; }
.ring-bg { stroke: rgba(255, 255, 255, .18); }
.ring-fg {
  stroke: #fff; stroke-dasharray: 327; stroke-dashoffset: 60;
  animation: ring 2.2s ease-out forwards;
}
@keyframes ring { from { stroke-dashoffset: 327; } to { stroke-dashoffset: 60; } }
.speed-value {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.speed-value strong { font-size: 2.6rem; line-height: 1; }
.speed-value span { font-size: .95rem; font-weight: 600; }

/* ===== Seções ===== */
.section { padding: 4rem 0; }
.section-alt { background: var(--bg-soft); }

/* ===== Chips de cobertura ===== */
.chips {
  display: flex; flex-wrap: wrap; justify-content: center; gap: .6rem;
  max-width: 800px; margin-inline: auto;
}
.chips li {
  background: var(--bg-soft); border: 1px solid var(--line);
  padding: .45rem 1.1rem; border-radius: 999px; font-size: .95rem; font-weight: 500;
}

/* ===== Planos ===== */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2.2rem; }
.plan {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 2rem 1.7rem; display: flex; flex-direction: column; gap: 1rem;
  transition: transform .2s ease, box-shadow .2s ease; position: relative;
}
.plan:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.plan h3 { font-size: 1.3rem; }
.plan-price { font-size: 2.4rem; font-weight: 800; color: var(--green); line-height: 1; }
.plan-price small { font-size: 1rem; font-weight: 600; vertical-align: super; }
.plan-price span { font-size: 1rem; font-weight: 500; color: var(--ink-soft); }
.plan-desc { color: var(--ink-soft); font-size: .96rem; flex: 1; }
.plan-featured { border: 2px solid var(--red); box-shadow: var(--shadow); }
.plan-featured .plan-price { color: var(--red); }
.plan-featured .btn-primary { background: var(--red); box-shadow: 0 6px 18px rgba(238, 33, 35, .35); }
.plan-featured .btn-primary:hover { background: var(--red-hover); }
.plan-tag {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--red); color: #fff; font-size: .78rem; font-weight: 700;
  padding: .2rem .9rem; border-radius: 999px; letter-spacing: .03em; white-space: nowrap;
}
.plans-note { text-align: center; color: var(--ink-soft); font-size: .88rem; margin-top: 1.8rem; }

/* ===== Benefícios empresariais ===== */
.biz-benefits {
  display: flex; flex-wrap: wrap; justify-content: center; gap: .7rem; margin-bottom: .5rem;
}
.biz-benefits li {
  background: #ecf2ed; color: var(--green); border: 1px solid #c8d8cc;
  padding: .4rem 1.1rem; border-radius: 999px; font-size: .92rem; font-weight: 600;
}
.biz-benefits li::before { content: "✓ "; }

/* ===== Link dedicado (verde escuro — PRD 15.2) ===== */
.section-dark { background: var(--green-dark); color: #fff; }
.section-dark h2 { text-align: left; }
.dedicated-inner {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 3rem; align-items: center;
}
.dedicated-sub { color: rgba(255, 255, 255, .85); margin: .6rem 0 1.4rem; }
.dedicated-benefits { display: grid; gap: .5rem; font-size: 1rem; }
.dedicated-benefits li::before { content: "✓ "; color: #7ee2a8; font-weight: 700; }
.dedicated-cta {
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .2);
  border-radius: var(--radius); padding: 2rem; text-align: center;
  display: flex; flex-direction: column; gap: .6rem; align-items: center;
}
.dedicated-price { font-size: 1.25rem; }
.dedicated-price strong { font-size: 2rem; color: #7ee2a8; }
.dedicated-note { font-size: .85rem; color: rgba(255, 255, 255, .75); margin-bottom: .6rem; }

/* ===== Tabela qual plano ===== */
.table-wrap { overflow-x: auto; margin-top: 1.5rem; }
.choose-table {
  width: 100%; border-collapse: collapse; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.choose-table th, .choose-table td { padding: .8rem 1.2rem; text-align: left; }
.choose-table thead { background: var(--green); color: #fff; }
.choose-table tbody tr:nth-child(even) { background: var(--bg-soft); }
.choose-table tbody tr:hover { background: #ecf2ed; }

/* ===== Diferenciais ===== */
.features { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.2rem; margin-top: 2.2rem; }
.feature {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem 1.3rem; text-align: center;
}
.feature-icon { font-size: 1.9rem; margin-bottom: .7rem; }
.feature h3 { font-size: 1rem; margin-bottom: .35rem; }
.feature p { color: var(--ink-soft); font-size: .88rem; }

/* ===== FAQ ===== */
.faq-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.4rem; margin-top: .9rem;
}
.faq-item summary { font-weight: 600; cursor: pointer; list-style: none; position: relative; padding-right: 2rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-size: 1.4rem; color: var(--green); transition: transform .2s;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item p { margin-top: .7rem; color: var(--ink-soft); font-size: .95rem; }

/* ===== CTA final (verde — PRD 15.2) ===== */
.section-cta { background: linear-gradient(135deg, var(--green-dark), var(--green-hover)); color: #fff; }
.section-cta h2 { text-align: left; }
.contact-inner { display: flex; align-items: center; justify-content: space-between; gap: 2.5rem; flex-wrap: wrap; }
.contact-inner > div > p { color: rgba(255, 255, 255, .85); margin: .4rem 0 1.4rem; }
.contact-list { display: grid; gap: .9rem; }
.contact-list strong { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: #7ee2a8; }
.contact-list a:hover { text-decoration: underline; }

/* ===== Rodapé ===== */
.footer { background: #0d1a10; color: rgba(255, 255, 255, .72); font-size: .92rem; }
.footer a:hover { text-decoration: underline; }
.footer-logo { width: 72px; height: 72px; border-radius: 50%; margin-bottom: .8rem; }
.footer-grid {
  display: grid; grid-template-columns: 1.2fr 1fr 1.4fr; gap: 2rem; padding: 2.5rem 0 1.5rem;
}
.footer-brand { font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: .4rem; }
.footer-title { font-weight: 700; color: #fff; margin-bottom: .5rem; }
.footer ul { display: grid; gap: .35rem; }
.footer-regions { font-size: .88rem; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .12); padding: 1.2rem 0;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: .85rem;
}

/* ===== WhatsApp flutuante (PRD 9.3) ===== */
.whats-float {
  position: fixed; right: 1.3rem; bottom: 1.3rem; z-index: 60;
  width: 58px; height: 58px; border-radius: 50%;
  background: var(--whats); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, .45);
  transition: transform .15s ease;
}
.whats-float:hover { transform: scale(1.08); }
.whats-float .icon { width: 30px; height: 30px; }

/* ===== Responsivo ===== */
@media (max-width: 1000px) {
  .features { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; padding: 3.2rem 0 3.8rem; text-align: center; }
  .hero-text p, .hero-actions { margin-inline: auto; justify-content: center; }
  .hero-art { display: none; }
  .plans { grid-template-columns: 1fr 1fr; }
  .dedicated-inner { grid-template-columns: 1fr; gap: 2rem; }
  .section-dark h2 { text-align: center; }
  .dedicated-sub, .dedicated-benefits { text-align: center; }
  .dedicated-benefits { justify-items: center; }
}
@media (max-width: 640px) {
  .nav {
    position: fixed; inset: 61px 0 auto 0; background: #fff;
    flex-direction: column; padding: 1.2rem 6%; gap: 1rem;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    transform: translateY(-130%); transition: transform .25s ease;
  }
  .nav.open { transform: translateY(0); }
  .menu-toggle { display: block; }
  .header .btn-whats { display: none; }
  .plans { grid-template-columns: 1fr; gap: 1.1rem; }
  .plan { padding: 1.5rem 1.4rem; }
  .features { grid-template-columns: 1fr 1fr; }
  .contact-inner { justify-content: center; text-align: center; }
  .section-cta h2 { text-align: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}