/* ============================================================
   CIBERFORENSE — style.css
   Design system + layout base (mobile-first)
   Complementos: animations.css (movimento) · responsive.css (breakpoints)
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  /* Cores da identidade */
  --primary:        #18134E;
  --secondary:      #2E2A92;
  --blue:           #5669C8;
  --purple:         #8D52B1;
  --magenta:        #D6298D;
  --bg:             #FFFFFF;
  --bg-light:       #F7F8FC;
  --bg-dark:        #0F1028;

  /* Derivados */
  --ink:            #18134E;               /* texto principal */
  --ink-soft:       #4A4A6A;               /* texto secundário */
  --ink-light:      #C7CBEE;               /* texto sobre fundo escuro */
  --line:           #E6E8F5;               /* bordas sutis */
  --line-dark:      rgba(198, 203, 238, .14);

  --grad:           linear-gradient(120deg, var(--secondary) 0%, var(--purple) 55%, var(--magenta) 100%);
  --grad-soft:      linear-gradient(120deg, rgba(86,105,200,.10), rgba(141,82,177,.10), rgba(214,41,141,.10));

  /* Tipografia */
  --font-display:   "Space Grotesk", system-ui, sans-serif;
  --font-body:      "Manrope", system-ui, sans-serif;
  --font-mono:      "JetBrains Mono", ui-monospace, monospace;

  /* Escala */
  --fs-h1: clamp(2.1rem, 5.2vw, 3.6rem);
  --fs-h2: clamp(1.6rem, 3.4vw, 2.4rem);
  --fs-h3: 1.12rem;
  --fs-body: 1rem;
  --fs-small: .875rem;

  /* Layout */
  --container: 1180px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-soft: 0 8px 30px rgba(24, 19, 78, .08);
  --shadow-glow: 0 12px 44px rgba(141, 82, 177, .22);
  --sect-y: clamp(4rem, 9vw, 7rem);
}

/* ---------- 2. Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
img { content-visibility: auto; } /* alivia renderização fora da viewport */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.18;
  letter-spacing: -.015em;
  font-weight: 600;
}

h1 { font-size: var(--fs-h1); font-weight: 700; }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

/* Foco visível (acessibilidade) */
:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}

.container { width: min(var(--container), 92%); margin-inline: auto; }
.container.narrow { max-width: 820px; }

.section { padding-block: var(--sect-y); position: relative; }

/* ---------- 3. Utilidades de marca ---------- */
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.grad-text-light {
  background: linear-gradient(120deg, #7f8fe6, #b57ad6, #ff5fb4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin-bottom: .9rem;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--grad);
  border-radius: 2px;
}
.eyebrow-light { color: #8fa0f0; }

.section-head { max-width: 720px; margin-bottom: clamp(2.2rem, 5vw, 3.4rem); }
.section-head .section-desc { margin-top: .9rem; }
.section-head.light h2 { color: #fff; }

/* Glassmorphism leve */
.glass {
  background: rgba(255, 255, 255, .65);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(24, 19, 78, .08);
  border-radius: var(--radius-lg);
}
.glass-dark {
  background: rgba(255, 255, 255, .05);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
}

/* ---------- 4. Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  font-weight: 700;
  font-family: var(--font-body);
  border-radius: 999px;
  padding: .8rem 1.6rem;
  font-size: .95rem;
  transition: transform .25s ease, box-shadow .25s ease, background-color .25s ease, color .25s ease;
  will-change: transform;
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 6px 22px rgba(214, 41, 141, .28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }

.btn-secondary {
  background: transparent;
  color: var(--secondary);
  border: 1.5px solid var(--blue);
}
.btn-secondary:hover { background: rgba(86, 105, 200, .08); transform: translateY(-2px); }

.btn-lg { padding: 1rem 2rem; font-size: 1rem; }
.btn-sm { padding: .55rem 1.15rem; font-size: .85rem; }
.btn-block { width: 100%; }

/* ---------- 5. Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 4px 24px rgba(24, 19, 78, .06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1.5rem;
}

.brand { display: inline-flex; align-items: center; gap: .6rem; }

.brand-logo {
  height: 48px;
  width: auto;
  transition: transform .25s ease;
}
.brand:hover .brand-logo { transform: scale(1.03); }

.brand-icon-img { width: 44px; height: 44px; }

.brand-name {
  font-family: var(--font-display);
  font-size: 1.28rem;
  color: var(--ink);
  letter-spacing: -.01em;
}
.brand-name strong {
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-name.light { color: #fff; }
.brand-name.light strong {
  background: linear-gradient(120deg, #8fa0f0, #c084e6, #ff5fb4);
  -webkit-background-clip: text;
  background-clip: text;
}

.nav-list { display: flex; align-items: center; gap: 1.6rem; }
.nav-list a:not(.btn) {
  font-size: .92rem;
  font-weight: 600;
  color: var(--ink-soft);
  position: relative;
  padding-block: .3rem;
}
.nav-list a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--grad);
  border-radius: 2px;
  transition: width .3s ease;
}
.nav-list a:not(.btn):hover { color: var(--ink); }
.nav-list a:not(.btn):hover::after { width: 100%; }

.nav-toggle { display: none; }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  padding-top: calc(72px + clamp(3rem, 8vw, 6rem));
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
  overflow: hidden;
}

.hero-bg { position: absolute; inset: 0; pointer-events: none; }

.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(86,105,200,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(86,105,200,.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 60% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 60% 30%, #000 30%, transparent 75%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .35;
}
.hero-glow-1 { width: 420px; height: 420px; background: var(--blue);   top: -140px; right: 4%; }
.hero-glow-2 { width: 340px; height: 340px; background: var(--magenta); bottom: -180px; left: -80px; opacity: .18; }

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--secondary);
  background: rgba(86, 105, 200, .1);
  border: 1px solid rgba(86, 105, 200, .25);
  border-radius: 999px;
  padding: .45rem 1rem;
  margin-bottom: 1.4rem;
}
.badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--magenta);
}

.hero-subtitle {
  margin-top: 1.3rem;
  font-size: 1.08rem;
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-top: 2rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  margin-top: 2.2rem;
  font-size: .85rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
}
.hero-trust li::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--grad);
}

/* Visual do hero */
.hero-visual { position: relative; }

.visual-frame {
  position: relative;
  aspect-ratio: 10 / 9;
  overflow: visible;
  box-shadow: var(--shadow-soft);
}

.rede-canvas {
  width: 100%;
  height: 100%;
  border-radius: inherit;
  display: block;
}

/* Chips de evidência (assinatura) */
.glass-chip {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: .15rem;
  background: rgba(255, 255, 255, .8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(24, 19, 78, .1);
  border-radius: 12px;
  padding: .6rem .85rem;
  box-shadow: 0 8px 26px rgba(24, 19, 78, .12);
}
.chip-label {
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.chip-hash {
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 500;
  color: var(--secondary);
}
.chip-status {
  font-size: .82rem;
  font-weight: 700;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}
.dot-ok, .dot-live {
  width: 7px; height: 7px;
  border-radius: 50%;
  display: inline-block;
}
.dot-ok   { background: #1fbf83; }
.dot-live { background: var(--magenta); }

.chip-1 { top: 8%;  right: -4%; }
.chip-2 { bottom: 14%; left: -6%; }
.chip-3 { bottom: -4%; right: 10%; }

/* ---------- 7. Quem atendemos ---------- */
.publicos { background: var(--bg-light); }

.publicos-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.publico-card {
  display: flex;
  align-items: center;
  gap: .8rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  font-weight: 600;
  color: var(--ink);
  font-size: .95rem;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.publico-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(141, 82, 177, .35);
}

.ico {
  width: 24px; height: 24px;
  flex: none;
  fill: none;
  stroke: var(--purple);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- 8. Serviços ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.6rem;
  transition: transform .3s ease, box-shadow .3s ease;
  overflow: hidden;
}
.card::before {                 /* borda em gradiente no hover */
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.5px;
  background: var(--grad);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-glow); }
.card:hover::before { opacity: 1; }

.card-ico {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--grad-soft);
  display: grid;
  place-items: center;
  margin-bottom: 1.1rem;
}
.card-ico svg {
  width: 26px; height: 26px;
  fill: none;
  stroke: var(--secondary);
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.card h3 { margin-bottom: .55rem; }
.card p { font-size: .93rem; }

/* ---------- 9. Timeline (como funciona) ---------- */
.como-funciona { background: var(--bg-light); }

.timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem 1.6rem;
  counter-reset: passo;
  position: relative;
}

.tl-step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.7rem 1.5rem 1.5rem;
  transition: transform .3s ease, box-shadow .3s ease;
}
.tl-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); }

.tl-num {
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .12em;
  color: #fff;
  background: var(--grad);
  border-radius: 999px;
  padding: .3rem .8rem;
  display: inline-block;
  margin-bottom: 1rem;
}
.tl-step h3 { margin-bottom: .5rem; }
.tl-step p { font-size: .92rem; }

/* ---------- 10. Faixa escura: diferenciais + stats ---------- */
.dark-band { color: var(--ink-light); }
.dark-band .dark-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 0%, rgba(86,105,200,.22), transparent 60%),
    radial-gradient(ellipse 50% 45% at 10% 100%, rgba(214,41,141,.16), transparent 60%),
    var(--bg-dark);
  z-index: -1;
}
.dark-band p { color: var(--ink-light); }

.dif-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.dif-item {
  display: flex;
  align-items: center;
  gap: .8rem;
  background: rgba(255, 255, 255, .045);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 1.05rem 1.15rem;
  font-size: .92rem;
  font-weight: 600;
  color: #ECEEFB;
  transition: background-color .25s ease, border-color .25s ease, transform .25s ease;
}
.dif-item:hover {
  background: rgba(255, 255, 255, .08);
  border-color: rgba(141, 82, 177, .5);
  transform: translateY(-3px);
}
.dif-item .ico { stroke: #a98fe0; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  margin-top: clamp(2.6rem, 6vw, 4rem);
  padding-top: clamp(2rem, 5vw, 3rem);
  border-top: 1px solid var(--line-dark);
  text-align: center;
}
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  background: linear-gradient(120deg, #8fa0f0, #c084e6, #ff5fb4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
}
.stat dd { font-size: .9rem; margin-top: .35rem; }

/* ---------- 11. Casos ---------- */
.casos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .9rem;
}

.caso {
  position: relative;
  display: flex;
  align-items: center;
  gap: .9rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.2rem 1rem 1.45rem;
  overflow: hidden;
  font-weight: 600;
  color: var(--ink);
  font-size: .95rem;
  transition: transform .25s ease, box-shadow .25s ease;
}
.caso::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--secondary), var(--purple), var(--magenta));
}
.caso:hover { transform: translateX(4px); box-shadow: var(--shadow-soft); }

.caso-tag {
  flex: none;
  font-family: var(--font-mono);
  font-size: .64rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--purple);
  background: rgba(141, 82, 177, .1);
  border-radius: 999px;
  padding: .3rem .7rem;
}

/* ---------- 12. Quem somos ---------- */
.quem-somos { background: var(--bg-light); }

.quem-inner {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.quem-frame { padding: 1.2rem; box-shadow: var(--shadow-soft); }
.dash-svg { width: 100%; border-radius: var(--radius); }

.quem-content h2 { margin-bottom: 1.1rem; }
.quem-content p + p { margin-top: .9rem; }
.quem-content .btn { margin-top: 1.7rem; }

/* ---------- 13. FAQ ---------- */
.faq-list { display: grid; gap: .8rem; }

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.faq-item[open] {
  border-color: rgba(141, 82, 177, .4);
  box-shadow: var(--shadow-soft);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.05rem 3rem 1.05rem 1.3rem;
  font-weight: 700;
  color: var(--ink);
  font-size: .98rem;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.2rem;
  top: 50%;
  translate: 0 -50%;
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--purple);
  transition: rotate .3s ease;
}
.faq-item[open] summary::after { rotate: 45deg; }
.faq-item p { padding: 0 1.3rem 1.2rem; font-size: .93rem; }

/* ---------- 14. Blog ---------- */
.blog { background: var(--bg-light); }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.blog-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.blog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-glow); }
.blog-card a { display: block; padding-bottom: 1.4rem; }

.blog-thumb { height: 150px; }
.bt-1 { background: linear-gradient(135deg, var(--secondary), var(--blue)); }
.bt-2 { background: linear-gradient(135deg, var(--blue), var(--purple)); }
.bt-3 { background: linear-gradient(135deg, var(--purple), var(--magenta)); }

.blog-meta {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 1.1rem 1.3rem .5rem;
}
.blog-card h3 { padding: 0 1.3rem; margin-bottom: .5rem; font-size: 1.05rem; }
.blog-card p:not(.blog-meta) { padding: 0 1.3rem; font-size: .9rem; }
.blog-link {
  display: inline-block;
  margin: .9rem 1.3rem 0;
  font-weight: 700;
  font-size: .88rem;
  color: var(--magenta);
}

/* Lead magnet */
.lead-magnet {
  margin-top: clamp(2.4rem, 5vw, 3.6rem);
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 1.6rem;
  align-items: center;
  padding: clamp(1.6rem, 4vw, 2.6rem);
  background: linear-gradient(120deg, rgba(86,105,200,.07), rgba(214,41,141,.07)), #fff;
}
.lm-content h3 { font-size: 1.25rem; margin-bottom: .4rem; }
.lm-form { display: flex; gap: .7rem; flex-wrap: wrap; }
.lm-form input {
  flex: 1 1 220px;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  padding: .8rem 1.2rem;
  font: inherit;
  color: var(--ink);
  background: #fff;
}
.lm-form input:focus { border-color: var(--blue); outline: none; }

/* ---------- 15. CTA final + formulário ---------- */
.cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.cta-content h2 { color: #fff; margin-bottom: 1rem; }
.cta-content p { margin-bottom: 1.8rem; max-width: 30rem; }

.contato-form { padding: clamp(1.5rem, 4vw, 2.2rem); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-field { margin-bottom: 1rem; }
.form-field label {
  display: block;
  font-size: .8rem;
  font-weight: 700;
  color: #ECEEFB;
  margin-bottom: .4rem;
  letter-spacing: .02em;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--line-dark);
  border-radius: 12px;
  padding: .75rem 1rem;
  font: inherit;
  color: #fff;
  transition: border-color .25s ease, background-color .25s ease;
}
.form-field select { appearance: none; }
.form-field select option { color: var(--ink); }
.form-field ::placeholder { color: rgba(199, 203, 238, .55); }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--purple);
  background: rgba(255, 255, 255, .1);
}
.form-note {
  margin-top: .8rem;
  font-size: .78rem;
  text-align: center;
  color: rgba(199, 203, 238, .7);
}

/* ---------- 16. Footer ---------- */
.site-footer {
  background: var(--bg-dark);
  color: var(--ink-light);
  padding-top: clamp(3rem, 7vw, 5rem);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2.4rem;
  padding-bottom: 2.6rem;
  border-bottom: 1px solid var(--line-dark);
}

.footer-brand p { font-size: .9rem; margin-top: 1rem; max-width: 26rem; }

.footer-col h4 {
  color: #fff;
  font-size: .95rem;
  margin-bottom: 1rem;
}
.footer-col li { margin-bottom: .55rem; font-size: .9rem; }
.footer-col a { transition: color .2s ease; }
.footer-col a:hover { color: #fff; }

.footer-social { display: flex; gap: .7rem; margin-top: 1.1rem; }
.footer-social a {
  width: 38px; height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-dark);
  border-radius: 10px;
  color: var(--ink-light);
  transition: border-color .25s ease, color .25s ease, transform .25s ease;
}
.footer-social a:hover { color: #fff; border-color: var(--purple); transform: translateY(-2px); }
.footer-social .ico { width: 18px; height: 18px; stroke: currentColor; }

.footer-bottom { padding-block: 1.4rem; font-size: .82rem; text-align: center; }

/* ---------- 17. WhatsApp flutuante ---------- */
.whats-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  width: 58px; height: 58px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, #25d366, #128c7e);
  box-shadow: 0 10px 30px rgba(18, 140, 126, .4);
  transition: transform .25s ease, box-shadow .25s ease;
}
.whats-float:hover { transform: scale(1.08); box-shadow: 0 14px 38px rgba(18, 140, 126, .5); }