/* Página de apresentação (/). Verde é só cromo; sem estilos inline (CSP). */
:root {
  color-scheme: light;
  --bg: #f6f6f1; --surface: #ffffff; --alt: #eef3ec; --line: #dfe3da;
  --text: #14201a; --text-2: #4b5a51; --accent: #2e6b3e; --accent-ink: #fff; --chat-bg: #e7ded3; --me: #d9fdd3;
}
@media (prefers-color-scheme: dark) {
  :root { color-scheme: dark; --bg: #121411; --surface: #1b1e1a; --alt: #181c17; --line: #2c322b; --text: #f2f5ef; --text-2: #b7c2b9; --accent: #5aa56c; --accent-ink: #0c1a10; --chat-bg: #26231f; --me: #1f4a2b; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(1.9rem, 6vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4.5vw, 2.1rem); text-align: center; margin-bottom: 1em; }
h3 { font-size: 1.15rem; }
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px; background: var(--surface); border-bottom: 1px solid var(--line); }
.brand { font-weight: 800; font-size: 1.15rem; text-decoration: none; color: var(--text); white-space: nowrap; }
.top nav { display: flex; align-items: center; gap: 16px; }
.top nav a:not(.btn) { color: var(--text-2); text-decoration: none; font-weight: 600; }
@media (max-width: 640px) { .top nav a:not(.btn) { display: none; } }
.btn { display: inline-block; padding: 10px 18px; border-radius: 10px; border: 1px solid var(--accent); font-weight: 700; text-decoration: none; text-align: center; }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.big { padding: 14px 24px; font-size: 1.05rem; }
.hero { max-width: 1040px; margin: 0 auto; padding: 36px 16px 20px; display: grid; gap: 28px; align-items: center; }
@media (min-width: 820px) { .hero { grid-template-columns: 1.2fr .8fr; padding-top: 64px; } }
.lead { font-size: 1.15rem; color: var(--text-2); }
.lead.center { text-align: center; max-width: 640px; margin: 0 auto 1.4em; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 8px; }
.cta.center-row { justify-content: center; }
.note { font-size: .9rem; color: var(--text-2); margin: 6px 0; }
.note.center { text-align: center; }
.phone { max-width: 280px; margin: 0 auto; padding: 8px; border-radius: 30px; background: #202420; box-shadow: 0 12px 32px rgb(0 0 0 / 22%); }
.phone img { display: block; width: 100%; height: auto; border-radius: 22px; }
.section { max-width: 1040px; margin: 0 auto; padding: 48px 16px; }
.section.alt { max-width: none; background: var(--alt); }
.section.alt > * { max-width: 1040px; margin-left: auto; margin-right: auto; }
.steps { list-style: none; counter-reset: s; display: grid; gap: 14px; margin: 0 0 28px; padding: 0; }
@media (min-width: 820px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { counter-increment: s; position: relative; padding: 18px 18px 18px 58px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; }
.steps li::before { content: counter(s); position: absolute; left: 16px; top: 16px; width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-weight: 800; }
.chat { max-width: 440px; margin: 0 auto; padding: 12px; border-radius: 16px; background: var(--chat-bg); }
.bubble { padding: 8px 12px; border-radius: 12px; margin: 6px 0; max-width: 88%; color: #14201a; }
.bubble.me { background: var(--me); margin-left: auto; color: var(--text); }
.bubble.sys { background: #fff; }
.features { list-style: none; margin: 0 auto; padding: 0; display: grid; gap: 14px; }
@media (min-width: 640px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .features { grid-template-columns: repeat(4, 1fr); } }
.features li { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.features p { margin: 0; color: var(--text-2); font-size: .97rem; }
.gallery { display: grid; gap: 22px; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 820px) { .gallery { grid-template-columns: repeat(3, 1fr); } }
.gallery figure { margin: 0; text-align: center; }
.gallery figcaption { margin-top: 8px; font-weight: 600; color: var(--text-2); }
.plans { display: grid; gap: 16px; max-width: 760px; margin: 0 auto; }
@media (min-width: 700px) { .plans { grid-template-columns: 1fr 1fr; } }
.plan { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.plan.featured { border: 2px solid var(--accent); }
.plan ul { margin: 12px 0 0; padding-left: 20px; }
.price { font-size: 2.2rem; font-weight: 800; margin: 4px 0; }
.price small { font-size: 1rem; font-weight: 600; color: var(--text-2); }
.tag { font-size: .72rem; vertical-align: middle; background: var(--accent); color: var(--accent-ink); padding: 2px 8px; border-radius: 99px; margin-left: 6px; }
.faq { max-width: 760px; margin: 0 auto; display: grid; gap: 10px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { margin: 8px 0 0; color: var(--text-2); }
.cta-end { text-align: center; }
.foot { border-top: 1px solid var(--line); padding: 22px 16px 34px; text-align: center; color: var(--text-2); font-size: .92rem; }
.foot p { margin: 4px 0; }