/* =========================================================
   Solucoes e Servicos Itaperuna - Landing (CSS)
   Paleta da marca: ambar/dourado + charcoal + cinza.
   Namespace visual: si- (os hooks de JS reaproveitados do landing.js
   usam as classes lp- e os ids lp do markup).
   ========================================================= */

:root {
	--si-amber: #F2A900;
	--si-amber-d: #D2900A;
	--si-amber-soft: #FFF6E0;
	--si-ink: #23262B;
	--si-ink-2: #2E333A;
	--si-ink-3: #3A4048;
	--si-black: #0B0C0E;
	--si-gray: #767C85;
	--si-gray-l: #A7ACB4;
	--si-line: #E7E9EC;
	--si-bg: #FFFFFF;
	--si-bg-soft: #F5F6F8;
	--si-white: #FFFFFF;
	--si-shadow: 0 18px 40px rgba(20, 22, 26, .10);
	--si-radius: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
	margin: 0;
	font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
	color: var(--si-ink);
	background: var(--si-bg);
	line-height: 1.55;
	-webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.si-container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.si-container--narrow { max-width: 820px; }

/* ---------- Botões ---------- */
.si-btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 10px;
	font-weight: 600; font-size: 15px; line-height: 1;
	padding: 13px 22px; border-radius: 999px; border: 2px solid transparent;
	cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
	white-space: nowrap;
}
.si-btn--amber { background: var(--si-amber); color: var(--si-ink); }
.si-btn--amber:hover { background: var(--si-amber-d); transform: translateY(-1px); box-shadow: 0 10px 22px rgba(242,169,0,.35); }
.si-btn--ghost { background: transparent; color: var(--si-white); border-color: rgba(255,255,255,.35); }
.si-btn--ghost:hover { border-color: var(--si-amber); color: var(--si-amber); }
.si-btn--dark { background: var(--si-ink); color: var(--si-white); }
.si-btn--dark:hover { background: var(--si-ink-2); transform: translateY(-1px); }
.si-btn--lg { padding: 16px 28px; font-size: 16px; }
.si-btn--block { width: 100%; }
.si-btn.is-loading { opacity: .7; pointer-events: none; }

/* ---------- Header ---------- */
.si-header {
	position: sticky; top: 0; z-index: 50;
	background: #FFFFFF;
	border-bottom: 1px solid var(--si-line);
	transition: box-shadow .2s ease, background .2s ease;
}
.si-header.is-scrolled { box-shadow: 0 6px 18px rgba(20,22,26,.10); }
.si-header__inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 18px; }
.si-brand__logo { height: 40px; width: auto; }
.si-nav__links { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.si-nav__links a { color: var(--si-ink-3); font-size: 14.5px; font-weight: 500; transition: color .15s ease; }
.si-nav__links a:hover { color: var(--si-amber-d); }
.si-header__cta { margin-left: 22px; }
.si-nav__toggle { display: none; background: none; border: 0; color: var(--si-ink); font-size: 22px; cursor: pointer; }

/* ---------- Hero (centralizado — distinto da 1000) ---------- */
.si-hero {
	position: relative; overflow: hidden;
	background: radial-gradient(1100px 500px at 50% -10%, #33383F 0%, var(--si-ink) 55%);
	color: var(--si-white); text-align: center;
	padding: 84px 0 96px;
}
.si-hero::before, .si-hero::after {
	content: ""; position: absolute; width: 260px; height: 260px; border-radius: 32px;
	background: linear-gradient(135deg, rgba(242,169,0,.22), rgba(242,169,0,0));
	transform: rotate(24deg); z-index: 0;
}
.si-hero::before { top: -70px; left: -80px; }
.si-hero::after { bottom: -110px; right: -70px; }
.si-hero__inner { position: relative; z-index: 1; max-width: 780px; margin: 0 auto; }
.si-eyebrow {
	display: inline-block; font-size: 12.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
	color: var(--si-amber); background: rgba(242,169,0,.12); border: 1px solid rgba(242,169,0,.3);
	padding: 7px 14px; border-radius: 999px; margin-bottom: 22px;
}
.si-hero h1 { font-size: clamp(30px, 5vw, 48px); line-height: 1.12; font-weight: 700; margin: 0 0 18px; letter-spacing: -.01em; }
.si-hero h1 span { color: var(--si-amber); }
.si-hero__lead { font-size: clamp(16px, 2.1vw, 19px); color: #C6CAD1; max-width: 620px; margin: 0 auto 30px; }
.si-hero__cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.si-hero__chips { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.si-chip {
	display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500;
	color: #E7E9EC; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
	padding: 10px 16px; border-radius: 12px;
}
.si-chip i { color: var(--si-amber); }

/* ---------- Seções ---------- */
.si-section { padding: 82px 0; }
.si-section--soft { background: var(--si-bg-soft); }
.si-section__head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.si-eyebrow--dark { color: var(--si-amber-d); background: var(--si-amber-soft); border-color: #F3DFA6; }
.si-h2 { font-size: clamp(24px, 3.4vw, 34px); font-weight: 700; line-height: 1.2; margin: 14px 0 12px; letter-spacing: -.01em; }
.si-section__lead { color: var(--si-gray); font-size: 16px; margin: 0; }

/* Serviços — cards com borda superior âmbar */
.si-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.si-card {
	background: var(--si-white); border: 1px solid var(--si-line); border-top: 3px solid var(--si-amber);
	border-radius: var(--si-radius); padding: 30px 26px; transition: transform .18s ease, box-shadow .2s ease;
}
.si-card:hover { transform: translateY(-4px); box-shadow: var(--si-shadow); }
.si-card__icon {
	width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
	background: var(--si-amber-soft); color: var(--si-amber-d); font-size: 22px; margin-bottom: 18px;
}
.si-card h3 { font-size: 18px; font-weight: 600; margin: 0 0 8px; }
.si-card p { margin: 0; color: var(--si-gray); font-size: 14.5px; }

/* Diferenciais — banda âmbar */
.si-band { background: var(--si-amber); color: var(--si-ink); padding: 46px 0; }
.si-band__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; text-align: center; }
.si-band__item i { font-size: 26px; margin-bottom: 10px; display: block; }
.si-band__item strong { display: block; font-size: 17px; font-weight: 700; }
.si-band__item span { font-size: 13.5px; color: #5A4B12; }

/* Como funciona — passos horizontais */
.si-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: si-step; }
.si-step { position: relative; background: var(--si-white); border: 1px solid var(--si-line); border-radius: var(--si-radius); padding: 34px 24px 26px; }
.si-step__num {
	position: absolute; top: -20px; left: 24px; width: 44px; height: 44px; border-radius: 12px;
	background: var(--si-ink); color: var(--si-amber); font-weight: 700; font-size: 18px; display: grid; place-items: center;
}
.si-step h3 { font-size: 17px; margin: 8px 0 8px; font-weight: 600; }
.si-step p { margin: 0; color: var(--si-gray); font-size: 14.5px; }

/* Contato — form à ESQUERDA, copy à DIREITA (espelhado vs 1000) */
.si-contact { background: var(--si-ink); color: var(--si-white); padding: 82px 0; }
.si-contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.si-contact__copy h2 { color: var(--si-white); }
.si-contact__copy .si-section__lead { color: #C6CAD1; }
.si-contact__list { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
.si-contact__list li { display: flex; align-items: center; gap: 10px; color: #E1E4E8; font-size: 15px; }
.si-contact__list i { color: var(--si-amber); }

.si-form { background: var(--si-white); color: var(--si-ink); border-radius: 20px; padding: 30px; box-shadow: var(--si-shadow); }
.si-form__title { font-size: 19px; font-weight: 700; margin: 0 0 20px; }
.si-field { display: block; margin-bottom: 16px; }
.si-field span { display: block; font-size: 13.5px; font-weight: 600; color: var(--si-ink-3); margin-bottom: 7px; }
.si-field input, .si-field textarea {
	width: 100%; border: 1.5px solid var(--si-line); border-radius: 12px; padding: 13px 15px;
	font-family: inherit; font-size: 15px; color: var(--si-ink); background: var(--si-bg-soft); transition: border-color .15s ease, background .15s ease;
}
.si-field input:focus, .si-field textarea:focus { outline: none; border-color: var(--si-amber); background: var(--si-white); }
.si-field textarea { resize: vertical; min-height: 84px; }
.si-form__msg { display: flex; align-items: center; gap: 8px; font-size: 14px; margin: 14px 0 0; padding: 12px 14px; border-radius: 10px; }
.si-form__msg[hidden] { display: none; } /* respeita o atributo hidden (senao a msg aparece no load) */
.si-form__msg--ok { background: #E9F7EF; color: #1B7A45; }
.si-form__msg--err { background: #FDECEC; color: #B42323; }
.si-form__legal { display: block; margin-top: 16px; font-size: 12px; color: var(--si-gray-l); }

/* FAQ */
.si-faq { display: grid; gap: 12px; }
.si-faq details { background: var(--si-white); border: 1px solid var(--si-line); border-radius: 12px; padding: 4px 18px; }
.si-faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none; position: relative; padding-right: 28px; }
.si-faq summary::-webkit-details-marker { display: none; }
.si-faq summary::after { content: "\f107"; font-family: FontAwesome; position: absolute; right: 2px; top: 14px; color: var(--si-amber-d); transition: transform .2s ease; }
.si-faq details[open] summary::after { transform: rotate(180deg); }
.si-faq p { margin: 0 0 16px; color: var(--si-gray); font-size: 14.5px; }

/* Footer */
.si-footer { background: #1A1D21; color: #B9BEC6; padding: 54px 0 30px; }
.si-footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 36px; }
.si-footer__logo { height: 40px; margin-bottom: 16px; }
.si-footer__about { font-size: 14px; max-width: 360px; margin: 0 0 16px; }
.si-footer__legal { font-size: 12.5px; color: #7E848D; line-height: 1.7; }
.si-footer h4 { color: var(--si-white); font-size: 15px; margin: 0 0 14px; }
.si-footer a { display: block; color: #B9BEC6; font-size: 14px; padding: 5px 0; transition: color .15s ease; }
.si-footer a:hover { color: var(--si-amber); }

/* FAB WhatsApp */
.si-fab {
	position: fixed; right: 20px; bottom: 20px; z-index: 60;
	display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px;
	background: var(--si-amber); color: var(--si-ink); padding: 14px 20px; border-radius: 999px;
	box-shadow: 0 12px 28px rgba(242,169,0,.4);
}
.si-fab i { font-size: 20px; }
.si-fab:hover { background: var(--si-amber-d); }

/* ---------- Responsivo ---------- */
@media (max-width: 900px) {
	.si-nav__links, .si-header__cta { display: none; }
	.si-header.is-open .si-nav__links {
		display: flex; position: absolute; top: 74px; left: 0; right: 0; flex-direction: column;
		gap: 0; background: #FFFFFF; padding: 10px 20px 18px; border-top: 1px solid var(--si-line);
		box-shadow: 0 12px 20px rgba(20,22,26,.10);
	}
	.si-header.is-open .si-nav__links a { padding: 12px 0; border-bottom: 1px solid var(--si-line); }
	.si-nav__toggle { display: block; }
	.si-cards, .si-band__grid, .si-steps { grid-template-columns: 1fr 1fr; }
	.si-contact__grid { grid-template-columns: 1fr; }
	.si-contact__copy { order: 2; }
	.si-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
	.si-cards, .si-band__grid, .si-steps, .si-footer__grid { grid-template-columns: 1fr; }
	.si-section { padding: 60px 0; }
	.si-hero { padding: 64px 0 72px; }
}