/* ==========================================================================
   FSGlass — Sistema visual do tema
   Convertido do projeto React/Vite original para CSS nativo.
   Paleta e tipografia (Urbanist + Epilogue) idênticas ao projeto original.
   ========================================================================== */

:root {
  /* Tokens convertidos 1:1 do design system original (oklch -> hex). */
  --fs-petroleo: #22565b;   /* --primary */
  --fs-turquesa: #4fa9a9;   /* --accent  */
  --fs-grafite: #10171c;    /* texto em seções claras */
  --fs-cinza: #9ea6ab;      /* --muted-foreground */
  --fs-prata: #c1c4c8;      /* --silver */
  --fs-branco: #eff2f4;     /* --foreground */

  --fs-bg: #0b1014;         /* --background */
  --fs-bg-alt: #111a1f;     /* --surface */
  --fs-surface: #18232a;    /* --surface-elevated */
  --fs-border: #2a353a;     /* --border */
  --fs-text: var(--fs-branco);
  --fs-muted: var(--fs-cinza);

  --fs-radius: 0.75rem;
  --fs-radius-lg: 1.25rem;
  --fs-max: 1200px;
  --fs-shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.75);
  --fs-shadow-glow: 0 0 0 1px rgba(79, 169, 169, 0.28), 0 18px 50px -22px rgba(79, 169, 169, 0.4);
  --fs-gradient-hero: linear-gradient(180deg, rgba(11, 16, 20, 0.2) 0%, rgba(11, 16, 20, 0.72) 55%, var(--fs-bg) 100%);
  --fs-gradient-accent: linear-gradient(100deg, var(--fs-turquesa), #2f7a80);
  --fs-header-h: 92px;
  --fs-font: "Epilogue", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --fs-font-display: "Urbanist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--fs-bg);
  color: var(--fs-text);
  font-family: var(--fs-font);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg, video, iframe { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; transition: color 0.25s ease, opacity 0.25s ease; }
a:hover { color: var(--fs-turquesa); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--fs-font-display);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--fs-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }

p { margin: 0 0 1rem; }
ul, ol { margin: 0; padding: 0; }
li { list-style: none; }

/* ---------- Layout ---------- */
.fs-container { width: 100%; max-width: var(--fs-max); margin-inline: auto; padding-inline: 20px; }
@media (min-width: 768px) { .fs-container { padding-inline: 32px; } }

.fs-section { padding: 72px 0; position: relative; }
@media (min-width: 768px) { .fs-section { padding: 96px 0; } }

.fs-section--light {
  background: #ffffff;
  color: var(--fs-grafite);
}
.fs-section--light h1, .fs-section--light h2, .fs-section--light h3 { color: #16454a; }
.fs-section--light .fs-eyebrow { color: #1f7074; }
.fs-section--light .fs-muted { color: #52595e; }
.fs-section--light .fs-card,
.fs-section--light .fs-panel {
  background: #fff;
  border-color: #dbdee1;
  box-shadow: 0 18px 44px -30px rgba(16, 23, 28, 0.35);
}
.fs-section--light .fs-chip { border-color: #dbdee1; color: #52595e; }
.fs-section--light .fs-input,
.fs-section--light .fs-select,
.fs-section--light .fs-textarea {
  background: #fff; border-color: #dbdee1; color: var(--fs-grafite);
}

.fs-section--alt { background: var(--fs-bg-alt); }

.fs-muted { color: var(--fs-muted); }
.fs-eyebrow {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fs-turquesa);
  margin: 0 0 14px;
}
.fs-heading { max-width: 720px; }
.fs-heading--center { margin-inline: auto; text-align: center; }
.fs-heading p { margin-top: 14px; font-size: 1rem; }

/* ---------- Botões ---------- */
.fs-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 26px; border-radius: 999px; border: 1px solid transparent;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  cursor: pointer; transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
  line-height: 1;
}
.fs-btn:hover { transform: translateY(-2px); color: inherit; }
.fs-btn--primary { background: var(--fs-gradient-accent); color: #06222430; color: #052225; box-shadow: var(--fs-shadow-glow); }
.fs-btn--primary:hover { color: #052225; }
.fs-btn--whats { background: #25d366; color: #04240f; box-shadow: 0 12px 34px -14px rgba(37, 211, 102, 0.75); }
.fs-btn--whats:hover { color: #04240f; }
.fs-btn--outline { border-color: var(--fs-border); color: var(--fs-text); background: transparent; }
.fs-btn--outline:hover { border-color: var(--fs-turquesa); color: var(--fs-turquesa); }
.fs-section--light .fs-btn--outline { border-color: #c6cbcf; color: #16454a; }
.fs-btn svg { width: 18px; height: 18px; flex: 0 0 auto; fill: currentColor; }
.fs-btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.fs-btn-row--center { justify-content: center; }

/* ---------- Header ---------- */
.fs-header {
  position: fixed; inset-inline: 0; top: 0; z-index: 100;
  background: rgba(20, 25, 27, 0.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--fs-border);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}
.fs-header.is-scrolled { box-shadow: 0 12px 40px -24px rgba(0, 0, 0, 0.9); background: rgba(20, 25, 27, 0.96); }
.fs-header__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding-block: 12px;
}
.fs-logo img { max-height: 62px; width: auto; object-fit: contain; border-radius: 10px; }
@media (min-width: 992px) { .fs-logo img { max-height: 72px; } }
.fs-logo__text { font-size: 1.6rem; font-weight: 800; letter-spacing: 0.04em; }
.fs-logo__text span { color: var(--fs-turquesa); }

.fs-header__right { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; flex: 1; }
.fs-header__top { display: none; align-items: center; gap: 18px; }
.fs-header__tagline { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fs-turquesa); margin: 0; }
.fs-header__social { display: inline-flex; gap: 12px; color: var(--fs-muted); }
.fs-header__social a:hover { color: var(--fs-turquesa); }
.fs-header__social svg { width: 17px; height: 17px; fill: currentColor; }

.fs-nav { display: none; }
.fs-nav ul { display: flex; align-items: center; gap: 26px; }
.fs-nav a {
  position: relative; font-size: 0.8rem; font-weight: 600; color: var(--fs-muted);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.fs-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1.5px; width: 0;
  background: var(--fs-turquesa); transition: width 0.3s ease;
}
.fs-nav a:hover, .fs-nav .current-menu-item > a, .fs-nav .current_page_item > a { color: var(--fs-turquesa); }
.fs-nav a:hover::after, .fs-nav .current-menu-item > a::after { width: 100%; }

.fs-header__actions { display: flex; align-items: center; gap: 10px; }
.fs-burger {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 999px;
  background: transparent; border: 1px solid var(--fs-border); color: var(--fs-text); cursor: pointer;
}
.fs-burger svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 2; }
.fs-burger .fs-icon-close { display: none; }
.fs-burger[aria-expanded="true"] .fs-icon-close { display: block; }
.fs-burger[aria-expanded="true"] .fs-icon-menu { display: none; }

.fs-mobile-nav {
  display: none; border-top: 1px solid var(--fs-border);
  background: rgba(20, 25, 27, 0.98); padding: 8px 20px 24px;
}
.fs-mobile-nav.is-open { display: block; animation: fsFadeDown 0.3s ease both; }
.fs-mobile-nav ul { display: flex; flex-direction: column; }
.fs-mobile-nav a {
  display: block; padding: 14px 0; border-bottom: 1px solid var(--fs-border);
  font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--fs-muted);
}
.fs-mobile-nav .fs-btn { margin-top: 20px; width: 100%; }

@media (min-width: 992px) {
  .fs-header__top, .fs-nav { display: flex; }
  .fs-header__actions { display: none; }
  .fs-mobile-nav { display: none !important; }
}

.fs-body { padding-top: var(--fs-header-h); }
.fs-body--hero { padding-top: 0; }

/* ---------- Hero ---------- */
.fs-hero { position: relative; display: flex; align-items: center; min-height: 82vh; overflow: hidden; }
.fs-hero--compact { min-height: 58vh; align-items: flex-end; }
.fs-hero__media { position: absolute; inset: 0; }
.fs-hero__media img { width: 100%; height: 100%; object-fit: cover; }
.fs-hero__overlay { position: absolute; inset: 0; background: var(--fs-gradient-hero); }
.fs-hero__content { position: relative; width: 100%; padding-top: calc(var(--fs-header-h) + 40px); padding-bottom: 64px; }
.fs-hero__content > * { max-width: 780px; }
.fs-hero h1 { margin-bottom: 18px; }
.fs-hero p { font-size: 1.02rem; color: var(--fs-muted); }

/* ---------- Cards / grids ---------- */
.fs-grid { display: grid; gap: 22px; }
.fs-grid--2 { grid-template-columns: 1fr; }
.fs-grid--3 { grid-template-columns: 1fr; }
.fs-grid--4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 700px) { .fs-grid--2, .fs-grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) {
  .fs-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .fs-grid--4 { grid-template-columns: repeat(4, 1fr); }
}
.fs-grid--split { display: grid; gap: 48px; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 1000px) { .fs-grid--split { grid-template-columns: 1fr 1fr; } }

.fs-card, .fs-panel {
  position: relative; display: flex; flex-direction: column;
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius-lg);
  box-shadow: var(--fs-shadow);
  overflow: hidden;
}
.fs-panel { padding: 30px; }
.fs-card__media { overflow: hidden; }
.fs-card__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform 0.7s ease; }
.fs-card:hover .fs-card__media img { transform: scale(1.06); }
.fs-card__body { display: flex; flex-direction: column; flex: 1; padding: 24px; }
.fs-card__cat { font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--fs-turquesa); margin: 0 0 8px; }
.fs-card__body h3 { margin-bottom: 10px; }
.fs-card__body p { font-size: 0.92rem; color: var(--fs-muted); flex: 1; }
.fs-card__link {
  margin-top: 18px; display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--fs-turquesa);
}
.fs-card__link svg { width: 14px; height: 14px; transition: transform 0.3s ease; fill: currentColor; }
.fs-card:hover .fs-card__link svg { transform: translateX(4px); }

.fs-list { display: grid; gap: 14px; }
.fs-list li { display: flex; gap: 12px; font-size: 0.94rem; color: var(--fs-muted); }
.fs-list svg { width: 17px; height: 17px; flex: 0 0 auto; margin-top: 3px; fill: var(--fs-turquesa); }

.fs-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.fs-chip {
  display: inline-flex; padding: 7px 15px; border-radius: 999px;
  border: 1px solid var(--fs-border); font-size: 0.76rem; color: var(--fs-muted);
}
.fs-chip.is-active, .fs-chip:hover { border-color: var(--fs-turquesa); color: var(--fs-turquesa); }

/* Mosaico de projetos */
.fs-mosaic { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.fs-tile { position: relative; overflow: hidden; border-radius: var(--fs-radius); aspect-ratio: 1 / 1; }
.fs-tile img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s ease; }
.fs-tile:hover img { transform: scale(1.07); }
.fs-tile__label {
  position: absolute; inset-inline: 0; bottom: 0; padding: 16px;
  font-size: 0.82rem; font-weight: 700; color: #fff;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
}

/* Processo */
.fs-steps { border: 1px solid var(--fs-border); border-radius: var(--fs-radius-lg); overflow: hidden; background: var(--fs-surface); }
.fs-steps li { display: flex; align-items: center; gap: 18px; padding: 18px 24px; border-bottom: 1px solid var(--fs-border); }
.fs-steps li:last-child { border-bottom: 0; }
.fs-steps b { font-size: 1.2rem; color: var(--fs-turquesa); }
.fs-steps span { font-size: 0.94rem; }
.fs-section--light .fs-steps { background: #fff; border-color: rgba(10, 47, 51, 0.12); }
.fs-section--light .fs-steps li { border-color: rgba(10, 47, 51, 0.1); }

/* Depoimentos */
.fs-quote { font-size: 0.98rem; line-height: 1.7; font-style: italic; }
.fs-quote__author { margin-top: 18px; font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fs-turquesa); font-style: normal; }

/* FAQ */
.fs-faq details {
  border: 1px solid var(--fs-border); border-radius: var(--fs-radius);
  padding: 18px 22px; margin-bottom: 12px; background: var(--fs-surface);
}
.fs-faq summary { cursor: pointer; font-weight: 700; font-size: 0.98rem; list-style: none; }
.fs-faq summary::-webkit-details-marker { display: none; }
.fs-faq summary::after { content: "+"; float: right; color: var(--fs-turquesa); font-size: 1.2rem; line-height: 1; }
.fs-faq details[open] summary::after { content: "–"; }
.fs-faq p { margin: 12px 0 0; font-size: 0.93rem; color: var(--fs-muted); }
.fs-section--light .fs-faq details { background: #fff; border-color: rgba(10, 47, 51, 0.12); }

/* ---------- Conteúdo editorial ---------- */
.fs-prose { max-width: 760px; }
.fs-prose p, .fs-prose ul, .fs-prose ol { font-size: 1rem; color: var(--fs-muted); }
.fs-prose ul li, .fs-prose ol li { list-style: disc; margin-left: 20px; margin-bottom: 8px; }
.fs-prose ol li { list-style: decimal; }
.fs-prose h2, .fs-prose h3 { margin: 34px 0 12px; }
.fs-prose img { border-radius: var(--fs-radius); margin: 24px 0; }
.fs-prose blockquote {
  margin: 24px 0; padding: 18px 24px; border-left: 3px solid var(--fs-turquesa);
  background: rgba(15, 177, 179, 0.06); border-radius: 0 var(--fs-radius) var(--fs-radius) 0;
}
.fs-section--light .fs-prose p, .fs-section--light .fs-prose li { color: #4d5658; }
.fs-meta { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fs-cinza); }

/* Breadcrumbs */
.fs-breadcrumbs { font-size: 0.76rem; color: var(--fs-muted); margin-bottom: 16px; }
.fs-breadcrumbs a:hover { color: var(--fs-turquesa); }
.fs-breadcrumbs span + span::before { content: "/"; margin: 0 8px; opacity: 0.5; }

/* ---------- Formulários ---------- */
.fs-form { display: grid; gap: 18px; }
.fs-form__row { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 700px) { .fs-form__row--2 { grid-template-columns: 1fr 1fr; } }
.fs-field { display: grid; gap: 7px; }
.fs-field label { font-size: 0.76rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fs-muted); }
.fs-input, .fs-select, .fs-textarea {
  width: 100%; padding: 13px 16px; border-radius: var(--fs-radius);
  border: 1px solid var(--fs-border); background: rgba(255, 255, 255, 0.04);
  color: var(--fs-text); font-family: inherit; font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.fs-textarea { min-height: 140px; resize: vertical; }
.fs-input:focus, .fs-select:focus, .fs-textarea:focus {
  outline: none; border-color: var(--fs-turquesa); box-shadow: 0 0 0 3px rgba(15, 177, 179, 0.18);
}
.fs-select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--fs-turquesa) 50%), linear-gradient(135deg, var(--fs-turquesa) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 15px) 50%; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; }
.fs-file { font-size: 0.9rem; color: var(--fs-muted); }
.fs-error { color: #ff8a7a; font-size: 0.8rem; }
.fs-notice {
  padding: 18px 22px; border-radius: var(--fs-radius);
  border: 1px solid rgba(15, 177, 179, 0.35); background: rgba(15, 177, 179, 0.1);
  font-size: 0.95rem;
}
.fs-notice--error { border-color: rgba(255, 138, 122, 0.4); background: rgba(255, 138, 122, 0.1); }

/* ---------- Footer ---------- */
.fs-footer { background: var(--fs-bg-alt); border-top: 1px solid var(--fs-border); }
.fs-footer__grid { display: grid; gap: 40px; padding: 64px 0; grid-template-columns: 1fr; }
@media (min-width: 700px) { .fs-footer__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .fs-footer__grid { grid-template-columns: 1.3fr 1fr 1fr 1.2fr; } }
.fs-footer h3 { font-size: 0.74rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--fs-turquesa); margin-bottom: 18px; }
.fs-footer li { margin-bottom: 10px; font-size: 0.92rem; color: var(--fs-muted); }
.fs-footer__contact li { display: flex; gap: 12px; }
.fs-footer__contact svg { width: 16px; height: 16px; flex: 0 0 auto; margin-top: 4px; fill: var(--fs-turquesa); }
.fs-footer__bottom { border-top: 1px solid var(--fs-border); padding: 20px 0; font-size: 0.78rem; color: var(--fs-cinza); }

/* ---------- WhatsApp flutuante + CTA mobile ---------- */
.fs-whats-float {
  position: fixed; right: 18px; bottom: 84px; z-index: 90;
  width: 56px; height: 56px; border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  background: #25d366; color: #fff;
  box-shadow: 0 10px 30px -8px rgba(37, 211, 102, 0.8);
  transition: transform 0.25s ease;
}
.fs-whats-float:hover { transform: scale(1.06); color: #fff; }
.fs-whats-float svg { width: 30px; height: 30px; fill: currentColor; }
@media (min-width: 768px) { .fs-whats-float { right: 26px; bottom: 26px; width: 64px; height: 64px; } }

.fs-mobile-cta {
  position: fixed; inset-inline: 0; bottom: 0; z-index: 89;
  padding: 10px 16px; background: rgba(20, 25, 27, 0.96);
  border-top: 1px solid var(--fs-border); backdrop-filter: blur(12px);
}
.fs-mobile-cta .fs-btn { width: 100%; }
@media (min-width: 768px) { .fs-mobile-cta { display: none; } }

/* ---------- Paginação ---------- */
.fs-pagination { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 42px; justify-content: center; }
.fs-pagination .page-numbers {
  padding: 9px 15px; border-radius: 999px; border: 1px solid var(--fs-border); font-size: 0.85rem;
}
.fs-pagination .current, .fs-pagination .page-numbers:hover { border-color: var(--fs-turquesa); color: var(--fs-turquesa); }

/* ---------- Animações ---------- */
.fs-reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fs-reveal.is-visible { opacity: 1; transform: none; }
.fs-reveal[data-delay="1"] { transition-delay: 0.08s; }
.fs-reveal[data-delay="2"] { transition-delay: 0.16s; }
.fs-reveal[data-delay="3"] { transition-delay: 0.24s; }

@keyframes fsFadeDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
@keyframes fsFadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
.fs-fade-up { animation: fsFadeUp 0.9s ease both; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .fs-reveal { opacity: 1; transform: none; }
}