/* ==========================================================================
   DETHETIZA v2-livre — LP convencional SaaS-style
   Mesmas cores. Inter. Layout clássico (hero centralizado, 3-col grids,
   avatars com iniciais, accordion com chevron).
   Performance + mobile-first ainda priorizados.
   ========================================================================== */

:root {
  --color-bg:           #0F1E18;
  --color-surface:      #14271F;
  --color-surface-alt:  #1B2E25;
  --color-text:         #E8DEC8;
  --color-text-muted:   rgba(232,222,200,0.65);
  --color-text-dim:     rgba(232,222,200,0.5);
  --color-border:       rgba(232,222,200,0.1);
  --color-border-soft:  rgba(232,222,200,0.06);

  --color-primary:      #25C167;
  --color-primary-dark: #1ea556;
  --color-accent:       #C04A1A;
  --color-accent-dark:  #963A14;
  --color-gold:         #F4C76A;

  --color-secondary:    #1D3A2F;
  --color-secondary-dark:#122922;

  /* 3 shades de forest para variar bg entre seções */
  --bg-forest-base: #0F1E18;
  --bg-forest-mid:  #15281F;
  --bg-forest-dark: #122922;

  --container:    1180px;
  --container-px: clamp(20px, 5vw, 48px);

  --radius-sm:  8px;
  --radius:     12px;
  --radius-lg:  20px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.25);
  --shadow:    0 8px 24px -8px rgba(0,0,0,0.5);
  --shadow-cta: 0 10px 24px -6px rgba(37,193,103,0.45);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --section-py: clamp(32px, 5vw, 56px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  font-weight: 400;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font: inherit; color: inherit; background: none; border: none; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }

.container { max-width: var(--container); margin: 0 auto; padding-inline: var(--container-px); }
.container--narrow { max-width: 820px; }

.section { padding-block: var(--section-py); }
.section--alt { background: var(--bg-forest-dark); }

/* ==========================================================================
   VARIAÇÃO DE BG POR SEÇÃO
   3 shades de forest (base / mid / dark) + radials sutis em rust/gold.
   Cria ritmo visual sem sair da paleta.
   ========================================================================== */
#sinais {
  background:
    radial-gradient(ellipse 60% 50% at 15% 0%, rgba(192,74,26,0.05) 0%, transparent 65%),
    var(--bg-forest-mid);
}
#metodo {
  background:
    radial-gradient(ellipse 50% 60% at 95% 30%, rgba(244,199,106,0.035) 0%, transparent 60%),
    var(--bg-forest-dark);
}
#especies {
  background:
    radial-gradient(ellipse 60% 50% at 85% 0%, rgba(192,74,26,0.05) 0%, transparent 65%),
    var(--bg-forest-base);
}
#depoimentos {
  background:
    radial-gradient(ellipse 70% 30% at 50% 100%, rgba(244,199,106,0.03) 0%, transparent 60%),
    var(--bg-forest-mid);
  border-top: 1px solid;
  border-image-source: linear-gradient(90deg, transparent 0%, rgba(192,74,26,0.22) 30%, rgba(192,74,26,0.22) 70%, transparent 100%);
  border-image-slice: 1;
}
#processo {
  background:
    radial-gradient(ellipse 50% 60% at 5% 50%, rgba(244,199,106,0.035) 0%, transparent 60%),
    var(--bg-forest-dark);
}
#cobertura {
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(192,74,26,0.04) 0%, transparent 65%),
    var(--bg-forest-base);
}
#faq {
  background:
    radial-gradient(ellipse 60% 30% at 50% 0%, rgba(244,199,106,0.04) 0%, transparent 70%),
    var(--bg-forest-mid);
}

/* Borda superior sutil entre seções pra reforçar quebra visual */
#sinais, #metodo, #especies, #processo, #cobertura, #faq {
  position: relative;
}
#sinais::before, #metodo::before, #especies::before,
#processo::before, #cobertura::before, #faq::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(232,222,200,0.08) 30%, rgba(232,222,200,0.08) 70%, transparent 100%);
  pointer-events: none;
}

.text-accent { color: var(--color-gold); }

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(15,30,24,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 14px;
}
.site-logo {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}
.site-logo img {
  height: 40px;
  width: auto;
}
@media (min-width: 640px) {
  .site-logo img { height: 48px; }
}
.site-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--color-primary);
  color: #062612;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 14px;
  min-height: 44px;
  transition: background 150ms ease;
}
.site-cta:hover { background: var(--color-primary-dark); }

/* ==========================================================================
   HERO — centralizado, padrão SaaS
   ========================================================================== */
.hero {
  position: relative;
  padding: clamp(32px, 6vw, 64px) 0 clamp(40px, 7vw, 72px);
  background:
    radial-gradient(ellipse 60% 80% at 50% 0%, rgba(192,74,26,0.08) 0%, transparent 70%),
    var(--bg-forest-base);
  text-align: center;
  overflow: hidden;
}
.hero__inner { max-width: 760px; margin: 0 auto; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(232,222,200,0.06);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  flex-wrap: wrap;
  justify-content: center;
}
.hero__stars { color: var(--color-gold); letter-spacing: -0.05em; }
.hero__divider { color: var(--color-text-dim); }

.hero__title {
  font-size: clamp(34px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin-bottom: 20px;
}

.hero__sub {
  font-size: clamp(16px, 1.5vw, 18px);
  color: var(--color-text-muted);
  max-width: 56ch;
  margin: 0 auto 32px;
  line-height: 1.6;
}

.hero__cta-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.hero__micro {
  font-size: 13px;
  color: var(--color-text-muted);
}

.hero__trust {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 600px;
  margin: 0 auto;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}
.trust-item { display: flex; flex-direction: column; align-items: center; }
.trust-item strong {
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.03em;
}
.trust-item span {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
}

/* ==========================================================================
   BOTÕES (clássicos)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.005em;
  min-height: 56px;
  transition: transform 150ms ease, background 150ms ease, box-shadow 150ms ease;
  cursor: pointer;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--color-primary);
  color: #062612;
  box-shadow: var(--shadow-cta);
}
.btn--primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); }
.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn--ghost:hover { background: var(--color-surface); border-color: rgba(232,222,200,0.25); }
.btn--lg {
  padding: 18px 32px;
  font-size: 17px;
  min-height: 64px;
}
.btn__icon { width: 20px; height: 20px; flex-shrink: 0; }

/* ==========================================================================
   SECTION HEADER (padrão)
   ========================================================================== */
.section__header {
  max-width: 720px;
  margin: 0 auto clamp(24px, 3.5vw, 36px);
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.eyebrow--light { color: var(--color-gold); }

.section__title {
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.section__sub {
  font-size: clamp(15px, 1.4vw, 17px);
  color: var(--color-text-muted);
  max-width: 56ch;
  margin: 0 auto;
  line-height: 1.6;
}
.section__cta {
  display: flex;
  justify-content: center;
  margin-top: clamp(20px, 3vw, 32px);
}

/* ==========================================================================
   GRIDS (3 e 4 col — clássico SaaS)
   ========================================================================== */
.grid { display: grid; gap: 20px; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .grid { gap: 24px; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* ==========================================================================
   FEATURE CARDS (3-up clássico)
   ========================================================================== */
.feature-card {
  padding: 28px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform 200ms ease, border-color 150ms ease, box-shadow 200ms ease;
}
.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(232,222,200,0.2);
  box-shadow: var(--shadow);
}
.feature-card__icon {
  width: 56px;
  height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(192,74,26,0.12);
  color: var(--color-accent);
  border-radius: var(--radius);
  margin-bottom: 18px;
}
.feature-card__icon svg { width: 32px; height: 32px; }
.feature-card__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  padding: 4px 10px;
  background: rgba(192,74,26,0.12);
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}
.feature-card--accent {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-alt) 100%);
  border-color: rgba(192,74,26,0.3);
}
.feature-card--accent .feature-card__tag {
  background: var(--color-accent);
  color: var(--color-text);
}
.feature-card__title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card__text {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   TWO-COL (split image + text)
   ========================================================================== */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}
@media (min-width: 900px) {
  .two-col { grid-template-columns: 1.1fr 1fr; }
}
.two-col__text .section__title { text-align: left; margin-bottom: 16px; }
.two-col__text .eyebrow { margin-bottom: 12px; }
.two-col__text .section__sub { margin: 0 0 24px; text-align: left; max-width: none; }
.two-col__text .btn { margin-top: 8px; }

.checklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.5;
}
.checklist li svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

/* Visual card (lateral do two-col) */
.visual-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  position: relative;
}
.visual-card__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 14px;
  background: var(--color-gold);
  color: #2A1F00;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: -0.01em;
}
.visual-card__number {
  font-size: 72px;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
  letter-spacing: -0.04em;
  margin-top: 12px;
}
.visual-card__label {
  font-size: 13px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 6px;
}
.visual-card__divider {
  height: 1px;
  background: var(--color-border);
  margin: 24px 0;
}
.visual-card__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  font-size: 14px;
  color: var(--color-text-muted);
}
.visual-card__row strong {
  color: var(--color-text);
  font-weight: 700;
}

/* ==========================================================================
   TESTIMONIAL CARDS (com avatar de iniciais — clássico)
   ========================================================================== */
.testimonial-card {
  padding: 28px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.testimonial-card__stars {
  color: var(--color-gold);
  letter-spacing: -0.05em;
  font-size: 16px;
  margin-bottom: 14px;
}
.testimonial-card__text {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 22px;
  flex-grow: 1;
}
.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}
.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.avatar--rust { background: var(--color-accent); color: var(--color-text); }
.avatar--gold { background: var(--color-gold); color: #2A1F00; }
.avatar--green { background: var(--color-primary); color: #062612; }
.testimonial-card__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}
.testimonial-card__role {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  padding: 12px 16px;
  min-height: 56px;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 14px;
  transition: color 150ms ease;
}
.link-arrow:hover { color: var(--color-gold); }

/* ==========================================================================
   STEP CARDS (numerados horizontais — clássico)
   ========================================================================== */
.grid--steps { gap: 16px; }
.step-card {
  padding: 28px 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  position: relative;
}
.step-card__num {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-text);
  border-radius: 50%;
  font-weight: 800;
  font-size: 18px;
  margin-bottom: 16px;
}
.step-card__title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-card__text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   BAIRROS LIST (clássico, pills cinzas)
   ========================================================================== */
.bairros-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 840px;
  margin: 0 auto;
}
.bairros-list li {
  padding: 10px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}
.bairros-list__highlight {
  background: var(--color-accent) !important;
  color: var(--color-text);
  border-color: transparent !important;
  font-weight: 700;
}
.cobertura-note {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ==========================================================================
   FAQ — <details>/<summary> com chevron rotacionando
   ========================================================================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 150ms ease;
}
.faq-item:hover { border-color: rgba(232,222,200,0.18); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
  min-height: 56px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-chev {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform 200ms ease;
}
.faq-item[open] .faq-chev { transform: rotate(180deg); }
.faq-item[open] {
  border-color: rgba(192,74,26,0.4);
}
.faq-body {
  padding: 0 22px 20px;
}
.faq-body p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
}
@media (min-width: 640px) {
  .faq-item summary { font-size: 16px; padding: 22px 26px; }
  .faq-body { padding: 0 26px 24px; }
}

/* ==========================================================================
   CTA FINAL (bloco centralizado conventional)
   ========================================================================== */
.cta-final {
  padding-block: clamp(40px, 6vw, 64px);
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, rgba(192,74,26,0.06) 0%, transparent 65%),
    var(--bg-forest-dark);
  position: relative;
}
.cta-final::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(232,222,200,0.08) 30%, rgba(232,222,200,0.08) 70%, transparent 100%);
  pointer-events: none;
}
.cta-final__box {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-secondary-dark) 100%);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: clamp(40px, 7vw, 72px) clamp(24px, 5vw, 56px);
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}
.cta-final__box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 0%, rgba(192,74,26,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.cta-final__box > * { position: relative; z-index: 1; }
.cta-final__title {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin: 14px 0 16px;
}
.cta-final__text {
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 56ch;
  margin: 0 auto 28px;
  line-height: 1.6;
}
.cta-final__micro {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 14px;
}

/* ==========================================================================
   FOOTER (3 col)
   ========================================================================== */
.footer {
  background: var(--bg-forest-base);
  padding-block: clamp(32px, 5vw, 56px);
  border-top: 1px solid var(--color-border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 40px; }
}
.footer-brand {
  display: block;
  height: 64px;
  width: auto;
  max-width: 220px;
  margin-bottom: 10px;
}
@media (min-width: 640px) {
  .footer-brand { height: 80px; max-width: 274px; }
}
.footer-tagline {
  font-size: 13px;
  color: var(--color-text-muted);
}
.footer-h {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 14px;
}
.footer-link {
  display: block;
  font-size: 14px;
  color: var(--color-text);
  padding-block: 8px;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: color 150ms ease;
}
.footer-link:hover { color: var(--color-gold); }
.footer-link--small {
  font-size: 12px;
  color: var(--color-text-muted);
  min-height: auto;
  padding-block: 4px;
}
.footer-text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-top: 8px;
}
.footer-text--small { font-size: 12px; margin-top: 14px; }

.footer-hours {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-hours li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding-block: 6px;
  font-size: 13px;
  border-bottom: 1px dashed var(--color-border-soft);
}
.footer-hours li:last-child { border-bottom: none; }
.footer-hours li span:first-child {
  color: var(--color-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 11px;
}
.footer-hours li span:last-child {
  color: var(--color-text);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.footer-bar {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  text-align: center;
  font-size: 12px;
  color: var(--color-text-muted);
}
@media (min-width: 640px) {
  .footer-bar { flex-direction: row; justify-content: space-between; text-align: left; }
}

/* ==========================================================================
   FAB
   ========================================================================== */
.fab {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 50;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #062612;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 32px -8px rgba(37,193,103,0.5), 0 4px 12px rgba(0,0,0,0.25);
  transform: scale(0);
  transition: transform 250ms cubic-bezier(0.34,1.56,0.64,1);
  will-change: transform;
}
.fab.is-visible { transform: scale(1); }
.fab::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.35;
  z-index: -1;
  animation: fab-pulse 2.4s cubic-bezier(0.4,0,0.2,1) infinite;
}
.fab svg { width: 30px; height: 30px; fill: currentColor; }
@keyframes fab-pulse {
  0%   { transform: scale(1); opacity: 0.35; }
  70%  { transform: scale(1.35); opacity: 0; }
  100% { transform: scale(1.35); opacity: 0; }
}

@media (min-width: 640px) {
  .fab { width: 64px; height: 64px; bottom: 24px; right: 24px; }
}

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