/* ==========================================================================
   J.A Solar Energia Sustentável — Stylesheet
   Mobile-first. Sem frameworks. Sem dependências externas.
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  /* Paleta extraída da logo oficial (ver README para origem das cores) */
  --blue-deep: #0a2540;      /* azul-marinho muito escuro — fundos escuros, texto forte */
  --blue-navy: #071a30;      /* quase preto — footer, seções de contraste máximo */
  --blue-medium: #0066b3;    /* azul médio da logo (J.A, aro do ícone) */
  --blue-light: #3bb0e4;     /* ciano/azul claro da logo (degradê SOLAR) */
  --orange: #f8991d;         /* laranja do raio — usar com moderação (CTA/destaques) */
  --orange-dark: #db7f0c;
  --gray-900: #1c1f24;
  --gray-700: #444b54;
  --gray-500: #6e6f71;       /* cinza da logo (subtítulo) */
  --gray-300: #c7ccd1;
  --gray-100: #f2f4f6;
  --white: #ffffff;

  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container-max: 1200px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 6rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.08);
  --shadow-md: 0 8px 24px rgba(10, 37, 64, 0.12);
  --shadow-lg: 0 20px 48px rgba(10, 37, 64, 0.18);

  --header-height: 72px;
  --transition: 0.2s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
svg { display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--blue-deep);
  color: var(--white);
  padding: var(--space-2) var(--space-3);
  z-index: 200;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
.section {
  padding-block: var(--space-7);
}
.section--tight { padding-block: var(--space-6); }
.section--dark {
  background: var(--blue-deep);
  color: var(--white);
}
.section--alt {
  background: var(--gray-100);
}
.section-head {
  max-width: 720px;
  margin-bottom: var(--space-6);
}
.section-head--center { margin-inline: auto; text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange-dark);
  margin-bottom: var(--space-2);
}
.section--dark .eyebrow { color: var(--orange); }
.section-title {
  font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--blue-deep);
  letter-spacing: -0.01em;
}
.section--dark .section-title { color: var(--white); }
.section-subtitle {
  margin-top: var(--space-3);
  font-size: 1.05rem;
  color: var(--gray-700);
}
.section--dark .section-subtitle { color: var(--gray-300); }
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.9rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border: 2px solid transparent;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
  text-align: center;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--orange);
  color: var(--blue-navy);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--orange-dark); box-shadow: var(--shadow-md); }
.btn-outline {
  background: transparent;
  border-color: currentColor;
  color: var(--white);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.btn-outline--dark {
  color: var(--blue-deep);
  border-color: var(--blue-deep);
}
.btn-outline--dark:hover { background: rgba(10,37,64,0.06); }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
  transition: box-shadow var(--transition), padding var(--transition);
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  height: var(--header-height);
}
.brand {
  display: flex;
  align-items: center;
  height: 100%;
  flex-shrink: 0;
}
.brand img {
  height: 40px;
  width: auto;
}
.main-nav {
  display: none;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}
.nav-list a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--gray-700);
  padding: var(--space-1) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.nav-list a:hover,
.nav-list a.is-active {
  color: var(--blue-medium);
  border-color: var(--orange);
}
.header-cta {
  display: none;
}
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  color: var(--blue-deep);
  flex-shrink: 0;
}
.menu-toggle svg { width: 26px; height: 26px; }
.icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .icon-open { display: none; }
.menu-toggle[aria-expanded="true"] .icon-close { display: block; }

.mobile-nav {
  position: fixed;
  inset: var(--header-height) 0 0 0;
  background: var(--white);
  transform: translateX(100%);
  transition: transform 0.28s ease;
  z-index: 99;
  overflow-y: auto;
  padding: var(--space-5) var(--space-4) var(--space-6);
}
.mobile-nav.is-open { transform: translateX(0); }
.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}
.mobile-nav-list a {
  display: block;
  padding: var(--space-3) var(--space-2);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--blue-deep);
  border-bottom: 1px solid var(--gray-100);
}

@media (min-width: 960px) {
  .main-nav { display: block; }
  .header-cta { display: inline-flex; }
  .menu-toggle { display: none; }
  .mobile-nav { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(160deg, var(--blue-navy) 0%, var(--blue-deep) 55%, var(--blue-medium) 130%);
  color: var(--white);
  overflow: hidden;
  padding-block: var(--space-8) var(--space-7);
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}
.hero-glow--orange {
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(248,153,29,0.35), transparent 70%);
  right: -120px; top: -60px;
}
.hero-glow--blue {
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(59,176,228,0.28), transparent 70%);
  left: -180px; bottom: -160px;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--space-6);
}
.hero-content { max-width: 680px; }
.hero-title {
  font-size: clamp(2rem, 1.5rem + 3vw, 3.4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-4);
}
.hero-title .accent { color: var(--orange); }
.hero-subtitle {
  font-size: clamp(1rem, 0.95rem + 0.4vw, 1.2rem);
  color: var(--gray-300);
  max-width: 56ch;
  margin-bottom: var(--space-5);
}
.hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}
.hero-actions .btn { width: 100%; }
@media (min-width: 480px) {
  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .hero-actions .btn { width: auto; }
}
.hero-tagline {
  border-left: 3px solid var(--orange);
  padding-left: var(--space-3);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--white);
  max-width: 52ch;
}
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-illustration {
  width: 100%;
  max-width: 420px;
  height: auto;
}
.hero-stats {
  display: none;
}

@media (min-width: 860px) {
  .hero-inner {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }
}

/* ---------- Quem Somos ---------- */
.about-grid {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}
.about-text p + p { margin-top: var(--space-3); }
.about-list {
  margin-top: var(--space-5);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.about-list li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--blue-deep);
}
.about-list svg {
  flex-shrink: 0;
  width: 18px; height: 18px;
  color: var(--orange);
}
.about-visual {
  background: var(--blue-deep);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  min-height: 260px;
}
.about-visual svg { width: 70%; max-width: 260px; }

@media (min-width: 860px) {
  .about-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- Solutions grid ---------- */
.solutions-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
.solution-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-light);
}
.solution-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--blue-medium), var(--blue-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  margin-bottom: var(--space-4);
}
.solution-card__icon svg { width: 26px; height: 26px; }
.solution-card__number {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--gray-300);
  margin-bottom: var(--space-1);
}
.solution-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--blue-deep);
  margin-bottom: var(--space-2);
}
.solution-card p {
  color: var(--gray-700);
  font-size: 0.95rem;
  flex-grow: 1;
}
.solution-card__link {
  margin-top: var(--space-4);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--blue-medium);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.solution-card__link svg { width: 14px; height: 14px; }

@media (min-width: 640px) {
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1040px) {
  .solutions-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Tag pill list (topics) ---------- */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}
.tag-list li {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
}
.section:not(.section--dark) .tag-list li {
  background: var(--gray-100);
  border-color: var(--gray-100);
  color: var(--blue-deep);
}

/* ---------- Deep-dive sections (two-column) ---------- */
.deep-section {
  display: grid;
  gap: var(--space-6);
}
.deep-section__text { max-width: 640px; }
.deep-section__cta { margin-top: var(--space-5); }
.deep-visual {
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}

@media (min-width: 900px) {
  .deep-section { grid-template-columns: 1fr 0.9fr; align-items: center; }
  .deep-section--reverse .deep-section__text { order: 2; }
  .deep-section--reverse .deep-visual { order: 1; }
}

/* Segments (Residencial/Comercial/Industrial/Rural) */
.segment-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.segment-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-sm);
}
.segment-card svg {
  width: 28px; height: 28px;
  color: var(--blue-medium);
  margin-bottom: var(--space-2);
}
.segment-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--blue-deep);
}
@media (min-width: 640px) {
  .segment-grid { grid-template-columns: repeat(4, 1fr); }
}

/* Comparison boxes (Consultoria vs Eficiência) */
.compare-grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.compare-card {
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}
.compare-card h4 {
  color: var(--orange);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
  margin-bottom: var(--space-2);
}
.compare-card p { color: var(--gray-300); font-size: 0.95rem; }
@media (min-width: 640px) {
  .compare-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- Setores atendidos ---------- */
.sectors-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.sector-card {
  background: var(--blue-deep);
  color: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-3);
  text-align: center;
  transition: transform var(--transition);
}
.sector-card:hover { transform: translateY(-4px); }
.sector-card svg {
  width: 36px; height: 36px;
  color: var(--orange);
  margin: 0 auto var(--space-3);
}
.sector-card span {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}
@media (min-width: 640px) {
  .sectors-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 900px) {
  .sectors-grid { grid-template-columns: repeat(5, 1fr); }
}

/* ---------- Como trabalhamos ---------- */
.process-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
  counter-reset: step;
}
.process-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  position: relative;
}
.process-card__number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--gray-100);
  -webkit-text-stroke: 1.5px var(--blue-light);
  line-height: 1;
  margin-bottom: var(--space-3);
}
.process-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--blue-deep);
  margin-bottom: var(--space-2);
}
.process-card p { color: var(--gray-700); font-size: 0.92rem; }
@media (min-width: 640px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1040px) {
  .process-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Projetos ---------- */
.projects-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
.project-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-sm);
}
.project-card__media {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-medium));
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-card__media svg { width: 30%; color: var(--white); opacity: 0.9; }
.project-card__body { padding: var(--space-4); }
.project-card__body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--blue-deep);
  margin-bottom: var(--space-2);
}
.project-card__body p { color: var(--gray-700); font-size: 0.9rem; }
.project-card__note {
  display: inline-block;
  margin-top: var(--space-3);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--orange-dark);
}
@media (min-width: 700px) {
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- CTA final ---------- */
.cta-final {
  background: linear-gradient(120deg, var(--blue-navy), var(--blue-medium));
  color: var(--white);
  text-align: center;
  padding-block: var(--space-7);
}
.cta-final .section-title { color: var(--white); }
.cta-final p {
  margin-top: var(--space-3);
  color: var(--gray-300);
  max-width: 60ch;
  margin-inline: auto;
  font-size: 1.05rem;
}
.cta-final .btn { margin-top: var(--space-5); }

/* ---------- Contato ---------- */
.contact-grid {
  display: grid;
  gap: var(--space-6);
}
.contact-info h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--blue-deep);
  margin-bottom: var(--space-3);
}
.contact-info dl { margin: 0; }
.contact-info .info-row {
  display: flex;
  gap: var(--space-3);
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--gray-100);
}
.contact-info .info-row svg {
  width: 22px; height: 22px;
  color: var(--blue-medium);
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-info dt {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  font-weight: 700;
}
.contact-info dd {
  margin: 2px 0 0;
  font-weight: 600;
  color: var(--blue-deep);
}
.contact-whatsapp-note {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--gray-100);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--gray-700);
}

.contact-form {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-md);
}
.form-row { margin-bottom: var(--space-4); }
.form-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--blue-deep);
  margin-bottom: var(--space-1);
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--gray-900);
  transition: border-color var(--transition);
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--blue-medium);
}
.form-row textarea { resize: vertical; min-height: 110px; }
.form-two-col {
  display: grid;
  gap: var(--space-4);
}
@media (min-width: 560px) {
  .form-two-col { grid-template-columns: 1fr 1fr; }
}
.form-status {
  margin-top: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  display: none;
}
.form-status.is-success {
  display: block;
  background: #e6f6ec;
  color: #1c7a3f;
}
.form-status.is-error {
  display: block;
  background: #fdecec;
  color: #b3261e;
}

@media (min-width: 960px) {
  .contact-grid { grid-template-columns: 0.85fr 1.15fr; }
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--blue-navy);
  color: var(--gray-300);
  padding-block: var(--space-7) var(--space-4);
}
.footer-grid {
  display: grid;
  gap: var(--space-6);
}
.footer-logo-plate {
  display: inline-flex;
  background: var(--white);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}
.footer-logo-plate img { height: 34px; width: auto; }
.footer-about p { font-size: 0.9rem; max-width: 46ch; }
.footer-col h4 {
  color: var(--white);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}
.footer-links li { margin-bottom: var(--space-2); }
.footer-links a {
  font-size: 0.92rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--white); }
.footer-contact li {
  font-size: 0.9rem;
  margin-bottom: var(--space-2);
}
.footer-social-note {
  font-size: 0.85rem;
  color: var(--gray-500);
  font-style: italic;
}
.footer-bottom {
  margin-top: var(--space-7);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.82rem;
  color: var(--gray-500);
  text-align: center;
}
/* Reserva espaço para o botão flutuante do WhatsApp não cobrir o copyright */
@media (max-width: 640px) {
  .footer-bottom { padding-bottom: 76px; }
}
@media (min-width: 760px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}

/* ---------- WhatsApp floating button ---------- */
.whatsapp-float {
  position: fixed;
  right: var(--space-3);
  bottom: var(--space-3);
  z-index: 90;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition);
}
.whatsapp-float:hover { transform: scale(1.06); }
.whatsapp-float svg { width: 28px; height: 28px; color: var(--white); }

@media (max-width: 480px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    right: var(--space-2);
    bottom: var(--space-2);
  }
}

/* Garante que o botão flutuante nunca sobreponha o formulário/rodapé em telas pequenas */
#contato, .site-footer { scroll-margin-top: var(--header-height); }
section[id] { scroll-margin-top: var(--header-height); }

/* ---------- Reveal on scroll (leve, respeita reduced-motion) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}