/* =========================================================
   Esteira de Vendas — wBuy.ai
   Paleta oficial: laranja quente #ff561c / #fe331b / #ff721e
   Fonte oficial: Poppins
   ========================================================= */

:root {
  /* Base */
  --bg: #0a0806;
  --bg-elev: #141110;
  --bg-elev-2: #1a1614;
  --bg-cream: #f6f1ec;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hi: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --border-hi: rgba(255, 255, 255, 0.16);
  --border-warm: rgba(255, 86, 28, 0.25);

  /* Texto */
  --text: #fafafa;
  --text-muted: #b4afaa;
  --text-dim: #7a756f;
  --text-dark: #1a1612;
  --text-dark-muted: #5a544d;

  /* Brand oficial wBuy.ai */
  --brand-1: #ff721e;   /* laranja claro */
  --brand-2: #ff561c;   /* laranja médio */
  --brand-3: #fe331b;   /* laranja-vermelho */
  --brand-accent: #ffb04a; /* âmbar */
  --cream: #ece8e5;
  --cream-soft: #f0edea;
  --gold: #f5c24b;
  --success: #22c55e;

  --grad-brand: linear-gradient(135deg, #ff721e 0%, #ff561c 50%, #fe331b 100%);
  --grad-brand-hi: linear-gradient(135deg, #ff8a3d 0%, #ff6a2d 50%, #ff451f 100%);
  --grad-warm: linear-gradient(180deg, rgba(255,86,28,0.08) 0%, transparent 100%);

  /* Tipo */
  --font-sans: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Instrument Serif', Georgia, serif;

  /* Radius */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  --container: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img, svg { display: block; max-width: 100%; }
em.serif, .serif { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.highlight {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  white-space: nowrap;
  cursor: pointer;
}
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-lg { padding: 16px 28px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.25) inset,
    0 10px 30px -10px rgba(255,86,28,0.6),
    0 4px 12px -2px rgba(254,51,27,0.35);
}
.btn-primary:hover {
  transform: translateY(-1px);
  background: var(--grad-brand-hi);
  box-shadow: 0 1px 0 rgba(255,255,255,0.3) inset, 0 14px 40px -10px rgba(255,86,28,0.8), 0 6px 18px -2px rgba(254,51,27,0.5);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border: 1px solid var(--border-hi);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { background: rgba(255,255,255,0.08); border-color: var(--border-warm); }

/* =========================================================
   NAV
   ========================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.02), 0 4px 20px -8px rgba(254, 51, 27, 0.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  line-height: 1;
}
.brand-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
}
.brand-tagline {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-dark-muted);
  padding-left: 2px;
}
.brand-tagline::before {
  content: '';
  display: inline-block;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--brand-2);
  vertical-align: middle;
  margin-right: 6px;
  transform: translateY(-1px);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 14px;
  color: var(--text-dark-muted);
  font-weight: 500;
}
.nav-links a { transition: color .2s ease; }
.nav-links a:hover { color: var(--brand-3); }

@media (max-width: 860px) {
  .nav-links { display: none; }
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  padding: 90px 0 60px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 50% at 80% 0%, rgba(255,86,28,0.25), transparent 65%),
    radial-gradient(ellipse 60% 50% at 10% 30%, rgba(254,51,27,0.18), transparent 65%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.5;
  animation: float 16s ease-in-out infinite;
}
.blob-1 {
  width: 520px; height: 520px;
  top: -140px; left: -120px;
  background: radial-gradient(circle, #ff721e 0%, transparent 70%);
}
.blob-2 {
  width: 600px; height: 600px;
  top: 80px; right: -180px;
  background: radial-gradient(circle, #fe331b 0%, transparent 70%);
  animation-delay: -4s;
}
@keyframes float {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(40px,-30px) scale(1.08); }
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 40%, transparent 90%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 40%, transparent 90%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--border-warm);
  border-radius: 999px;
  background: rgba(255,86,28,0.08);
  font-size: 13px;
  color: var(--brand-accent);
  font-weight: 500;
}
.dot-pulse {
  width: 7px; height: 7px;
  background: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(34,197,94,0.8);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34,197,94,0.7); }
  70% { box-shadow: 0 0 0 10px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

.hero-title {
  font-size: clamp(40px, 5.5vw, 72px);
  line-height: 1.03;
  letter-spacing: -0.03em;
  font-weight: 700;
}
.hero-title em.serif { display: inline; font-weight: 400; color: var(--text-muted); }

.hero-sub {
  margin-top: 22px;
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.65;
  font-weight: 400;
}
.hero-sub strong { color: var(--text); font-weight: 600; }

.hero-cta {
  margin-top: 32px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-trust {
  margin-top: 44px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.trust-item { display: flex; flex-direction: column; gap: 2px; }
.trust-item strong {
  font-size: 22px;
  font-weight: 700;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.trust-item span { font-size: 13px; color: var(--text-muted); }
.trust-divider { width: 1px; height: 30px; background: var(--border-hi); }

/* ===== Hero visual ===== */
.hero-visual {
  position: relative;
  height: 540px;
}
@media (max-width: 980px) { .hero-visual { height: 560px; } }

.hero-photo {
  position: absolute;
  top: 0; right: 0;
  width: 62%;
  height: 70%;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(135deg, #ff721e 0%, #fe331b 100%);
  box-shadow: 0 30px 80px -20px rgba(254,51,27,0.45);
  z-index: 0;
}
.hero-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 10s ease;
}
.hero-photo:hover img { transform: scale(1.05); }
.hero-photo::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(20,17,16,0.55) 100%);
}

.chat-card {
  position: absolute;
  bottom: 40px; left: 0; right: 40%;
  background: rgba(20, 17, 16, 0.92);
  border: 1px solid var(--border-hi);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow:
    0 20px 60px -20px rgba(0,0,0,0.7),
    0 0 0 1px rgba(255,255,255,0.03);
  overflow: hidden;
  animation: slideIn .8s ease;
  z-index: 2;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}
.chat-avatar {
  width: 38px; height: 38px;
  border-radius: 11px;
  background: var(--grad-brand);
  display: grid; place-items: center;
  color: #fff;
}
.chat-meta { display: flex; flex-direction: column; gap: 2px; }
.chat-meta strong { font-size: 14px; font-weight: 600; }
.chat-meta span { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 5px; }
.live-dot { width: 6px; height: 6px; background: var(--success); border-radius: 50%; }

.chat-body {
  padding: 18px;
  display: flex; flex-direction: column; gap: 10px;
}
.msg {
  max-width: 82%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 13.5px;
  line-height: 1.45;
}
.msg-in {
  background: rgba(255,86,28,0.14);
  border: 1px solid rgba(255,86,28,0.3);
  border-top-left-radius: 4px;
  align-self: flex-start;
}
.msg-out {
  background: #1f1b18;
  border: 1px solid var(--border);
  border-top-right-radius: 4px;
  align-self: flex-end;
}
.msg-in strong { color: var(--brand-1); font-weight: 600; }

.typing {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 10px 14px;
  background: rgba(255,86,28,0.12);
  border-radius: 16px;
  border-top-left-radius: 4px;
  align-self: flex-start;
}
.typing span {
  width: 6px; height: 6px;
  background: var(--brand-2);
  border-radius: 50%;
  animation: bounce 1.2s infinite;
}
.typing span:nth-child(2) { animation-delay: .15s; }
.typing span:nth-child(3) { animation-delay: .3s; }
@keyframes bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

/* Pipeline mini */
.pipeline-card {
  position: absolute;
  bottom: 0; right: 0;
  width: 300px;
  background: rgba(20, 17, 16, 0.95);
  border: 1px solid var(--border-hi);
  border-radius: var(--r-md);
  padding: 14px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.8);
  z-index: 3;
  animation: slideIn .8s ease .2s both;
}
.pipeline-header {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 13px;
}
.pipeline-header strong { color: var(--text); font-size: 13px; flex: 1; font-weight: 600; }
.pill {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(34,197,94,0.18);
  color: var(--success);
  padding: 3px 8px;
  border-radius: 6px;
  font-weight: 600;
}
.pipeline-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.pipeline-col { display: flex; flex-direction: column; gap: 5px; }
.col-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 600;
  margin-bottom: 2px;
}
.card-mini {
  height: 22px;
  border-radius: 5px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
}
.card-mini-a { background: rgba(255,114,30,0.2); border-color: rgba(255,114,30,0.35); }
.card-mini-b { background: rgba(255,86,28,0.2); border-color: rgba(255,86,28,0.35); }
.card-mini-c { background: rgba(254,51,27,0.2); border-color: rgba(254,51,27,0.35); }
.card-mini-d { background: rgba(34,197,94,0.22); border-color: rgba(34,197,94,0.4); }
.pulse { animation: cardPulse 2s infinite; }
@keyframes cardPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34,197,94,0.6); }
  50% { box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

/* Marquee */
.marquee-wrap { margin-top: 80px; position: relative; z-index: 1; }
.marquee-label { text-align: center; color: var(--text-dim); font-size: 13px; margin-bottom: 18px; }
.marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track {
  display: inline-flex;
  gap: 32px;
  animation: scroll 30s linear infinite;
  white-space: nowrap;
  font-size: 22px;
  font-weight: 500;
  color: var(--text-muted);
  font-family: var(--font-serif);
  font-style: italic;
}
@keyframes scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* =========================================================
   SECTION HELPERS
   ========================================================= */
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-2);
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 700;
}
.section-lede {
  margin-top: 18px;
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.65;
}
.section-lede strong { color: var(--text); font-weight: 600; }

/* =========================================================
   PROBLEM
   ========================================================= */
.problem { padding: 110px 0; }
.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 980px) { .problem-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .problem-grid { grid-template-columns: 1fr; } }

.problem-card {
  padding: 28px 24px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.problem-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-warm);
  background: var(--bg-elev-2);
}
.problem-num {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 32px;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}
.problem-card h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  line-height: 1.3;
}
.problem-card p { color: var(--text-muted); font-size: 14.5px; line-height: 1.55; }

/* =========================================================
   METHOD — 4 Cs
   ========================================================= */
.method {
  padding: 110px 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(255,86,28,0.1), transparent 60%),
    transparent;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.method-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 1060px) { .method-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .method-grid { grid-template-columns: 1fr; } }

.method-card {
  position: relative;
  padding: 28px;
  background: linear-gradient(180deg, var(--bg-elev) 0%, rgba(20,17,16,0.5) 100%);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease;
}
.method-card:hover { transform: translateY(-4px); border-color: var(--border-warm); }
.method-tag {
  display: inline-block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 36px;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
  line-height: 1;
}
.method-card h3 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.method-lede { color: var(--text-muted); font-size: 14.5px; margin-bottom: 18px; line-height: 1.45; }
.method-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.method-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--text);
  line-height: 1.45;
}
.method-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 7px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--grad-brand);
  opacity: 0.9;
  box-shadow: 0 0 0 3px rgba(255,86,28,0.15);
}

/* =========================================================
   TOOLS
   ========================================================= */
.tools { padding: 110px 0; }
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 980px) { .tools-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .tools-grid { grid-template-columns: 1fr; } }

.tool-card {
  position: relative;
  padding: 28px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: transform .25s ease, border-color .25s ease;
}
.tool-card:hover { transform: translateY(-4px); border-color: var(--border-warm); }

.tool-card-lg { grid-column: span 2; background: linear-gradient(135deg, rgba(255,86,28,0.1) 0%, var(--bg-elev) 60%); }
.tool-card-feature {
  grid-column: span 2;
  background:
    radial-gradient(ellipse at top right, rgba(254,51,27,0.16), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(255,114,30,0.14), transparent 60%),
    var(--bg-elev);
  border-color: var(--border-warm);
}
@media (max-width: 980px) {
  .tool-card-lg, .tool-card-feature { grid-column: span 2; }
}
@media (max-width: 560px) {
  .tool-card-lg, .tool-card-feature { grid-column: span 1; }
}

.tool-icon,
.tool-icon.green,
.tool-icon.pink,
.tool-icon.blue,
.tool-icon.orange,
.tool-icon.purple,
.tool-icon.cyan,
.tool-icon.gradient {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: var(--grad-brand);
  color: #fff;
  margin-bottom: 20px;
  border: 0;
  box-shadow: 0 8px 22px -6px rgba(255, 86, 28, 0.6);
}

.tool-badge {
  position: absolute; top: 20px; right: 20px;
  padding: 4px 10px;
  background: rgba(255,86,28,0.18);
  color: var(--brand-1);
  border: 1px solid rgba(255,86,28,0.3);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.tool-badge.gold {
  background: rgba(245,194,75,0.14);
  color: var(--gold);
  border-color: rgba(245,194,75,0.3);
}

.tool-card h3 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  line-height: 1.25;
}
.tool-card p { color: var(--text-muted); font-size: 14.5px; line-height: 1.55; }
.tool-bullets {
  list-style: none;
  margin-top: 16px;
  display: flex; flex-direction: column; gap: 8px;
}
.tool-bullets li {
  position: relative;
  padding-left: 22px;
  font-size: 13.5px;
  color: var(--text);
}
.tool-bullets li::before {
  content: '';
  position: absolute;
  left: 2px; top: 7px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand-2);
}

/* =========================================================
   ACRONYM — "ESTEIRA" explicado (seção épica)
   ========================================================= */
.acronym {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
  background: linear-gradient(180deg, #1a0806 0%, #2a0f08 40%, #1a0806 100%);
  border-top: 1px solid rgba(255, 86, 28, 0.2);
  border-bottom: 1px solid rgba(255, 86, 28, 0.2);
  color: var(--text);
}
.acronym-bg { position: absolute; inset: 0; pointer-events: none; }
.acronym-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.7;
}
.acronym-glow-1 {
  top: -20%; left: 10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, #ff561c 0%, transparent 70%);
  animation: float 18s ease-in-out infinite;
}
.acronym-glow-2 {
  bottom: -10%; right: 0%;
  width: 700px; height: 500px;
  background: radial-gradient(circle, #fe331b 0%, transparent 70%);
  animation: float 22s ease-in-out infinite;
  animation-delay: -6s;
}
.acronym-grid-pattern {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 40%, #000 40%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 40%, #000 40%, transparent 85%);
}

.acronym .container { position: relative; z-index: 1; }

.acronym-eyebrow { color: var(--brand-accent) !important; }
.highlight-light {
  background: linear-gradient(135deg, #ffc88a 0%, #ff8a3d 50%, #fff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.02em;
}
.acronym-lede { color: rgba(255, 255, 255, 0.75); }
.acronym-lede strong { color: #fff; }

/* Belt — a esteira visual */
.belt {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 780px;
  margin: 72px auto 80px;
  padding: 0 8px;
  gap: 4px;
}
.belt-line {
  position: absolute;
  left: 40px; right: 40px;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255,86,28,0.6) 15%, rgba(254,51,27,0.8) 50%, rgba(255,86,28,0.6) 85%, transparent);
  z-index: 0;
  transform: translateY(-1px);
}
.belt-line::before, .belt-line::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand-2);
  box-shadow: 0 0 10px rgba(255,86,28,0.8);
  animation: beltDot 3s linear infinite;
}
.belt-line::before { left: 10%; animation-delay: 0s; }
.belt-line::after { left: 60%; animation-delay: -1.5s; }
@keyframes beltDot {
  0% { transform: translate(0, -50%); opacity: 0; }
  10%, 90% { opacity: 1; }
  100% { transform: translate(600%, -50%); opacity: 0; }
}

.belt-tile {
  position: relative;
  z-index: 1;
  width: 68px; height: 68px;
  border-radius: 16px;
  display: grid; place-items: center;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 38px;
  font-weight: 400;
  color: #fff;
  background: linear-gradient(135deg, #ff8a3d 0%, #ff561c 50%, #fe331b 100%);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.3) inset,
    0 12px 30px -6px rgba(254,51,27,0.7),
    0 0 0 1px rgba(255,86,28,0.5);
  transition: transform .3s ease, box-shadow .3s ease;
  line-height: 1;
}
.belt-tile:hover {
  transform: translateY(-5px) scale(1.06);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.35) inset,
    0 18px 40px -6px rgba(254,51,27,0.9),
    0 0 0 1px rgba(255,138,61,0.6);
}

.belt-arrow {
  position: relative;
  z-index: 1;
  color: var(--brand-accent);
  animation: arrowSlide 1.8s ease-in-out infinite;
  margin-left: 4px;
}
@keyframes arrowSlide {
  0%, 100% { transform: translateX(0); opacity: 0.7; }
  50% { transform: translateX(6px); opacity: 1; }
}

@media (max-width: 720px) {
  .belt { gap: 2px; }
  .belt-tile { width: 44px; height: 44px; border-radius: 10px; font-size: 26px; }
  .belt-arrow { display: none; }
}

/* Cards */
.acronym-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
}
@media (max-width: 1100px) { .acronym-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 760px) { .acronym-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 420px) { .acronym-grid { grid-template-columns: 1fr; } }

.acronym-card {
  position: relative;
  padding: 28px 20px 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
  border: 1px solid rgba(255, 86, 28, 0.25);
  border-radius: 18px;
  text-align: center;
  transition: transform .3s ease, border-color .3s ease, background .3s ease, box-shadow .3s ease;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  overflow: hidden;
}
.acronym-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  background: linear-gradient(180deg, rgba(255,138,61,0.3), transparent 50%);
  border-radius: inherit;
  pointer-events: none;
  opacity: 0.4;
}
.acronym-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 138, 61, 0.6);
  background:
    linear-gradient(180deg, rgba(255, 86, 28, 0.14) 0%, rgba(255, 86, 28, 0.04) 100%);
  box-shadow: 0 20px 40px -12px rgba(254, 51, 27, 0.35);
}

.acronym-icon {
  position: relative;
  width: 40px; height: 40px;
  border-radius: 11px;
  margin: 0 auto 10px;
  display: grid; place-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 86, 28, 0.3);
  color: var(--brand-accent);
}
.acronym-num {
  position: absolute;
  top: 16px; right: 16px;
  font-size: 11px;
  font-weight: 700;
  color: var(--brand-accent);
  letter-spacing: 0.1em;
  opacity: 0.7;
}
.acronym-letter {
  position: relative;
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 88px;
  line-height: 0.85;
  background: linear-gradient(180deg, #ffc88a 0%, #ff561c 50%, #fe331b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 8px 0 6px;
  letter-spacing: -0.04em;
  text-shadow: 0 0 40px rgba(255, 86, 28, 0.3);
}
.acronym-card h3 {
  position: relative;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
  color: #fff;
}
.acronym-card p {
  position: relative;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.5;
}

.acronym-footnote {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 64px;
  padding: 16px 24px;
  max-width: fit-content;
  margin-left: auto;
  margin-right: auto;
  border: 1px dashed rgba(255, 138, 61, 0.35);
  border-radius: 999px;
  color: var(--brand-accent);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 16px;
}
.acronym-footnote svg { opacity: 0.7; }

/* =========================================================
   NICHES — seção com fotos reais
   ========================================================= */
.niches {
  padding: 110px 0;
  background: var(--bg-cream);
  color: var(--text-dark);
  border-top: 1px solid rgba(0,0,0,0.04);
  border-bottom: 1px solid rgba(0,0,0,0.04);
}
.niches .section-eyebrow { color: var(--brand-3); }
.niches .section-title { color: var(--text-dark); }
.niches .section-title em.serif { color: var(--text-dark-muted); }
.niches .section-lede { color: var(--text-dark-muted); }
.niches .section-lede strong { color: var(--text-dark); }

.niches-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
@media (max-width: 980px) { .niches-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .niches-grid { grid-template-columns: repeat(2, 1fr); } }

.niche {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: var(--r-md);
  overflow: hidden;
  cursor: default;
  background: #e8e0d8;
  box-shadow: 0 2px 0 rgba(0,0,0,0.04);
}
.niche img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.niche:hover img { transform: scale(1.08); }
.niche::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(20,17,16,0.85) 100%);
}
.niche-label {
  position: absolute;
  bottom: 14px; left: 16px;
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  z-index: 1;
}

/* =========================================================
   HOW IT WORKS — TIMELINE
   ========================================================= */
.how { padding: 110px 0; }
.timeline {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding-left: 40px;
}
.timeline-line {
  position: absolute;
  left: 19px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(255,114,30,0.6) 0%, rgba(254,51,27,0.6) 100%);
  border-radius: 2px;
}
.step { position: relative; padding-left: 34px; padding-bottom: 40px; }
.step:last-child { padding-bottom: 0; }
.step-marker {
  position: absolute;
  left: -40px; top: 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid rgba(255,86,28,0.7);
  display: grid; place-items: center;
  font-weight: 700;
  font-size: 15px;
  color: var(--brand-1);
  box-shadow: 0 0 0 6px var(--bg), 0 0 30px -4px rgba(255,86,28,0.7);
}
.step-content {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 24px 28px;
  border-radius: var(--r-md);
  transition: border-color .2s ease, transform .2s ease;
}
.step-content:hover { border-color: var(--border-warm); transform: translateX(4px); }
.step-time {
  display: inline-block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 16px;
  color: var(--brand-2);
  margin-bottom: 6px;
}
.step-content h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 8px; }
.step-content p { color: var(--text-muted); font-size: 15px; line-height: 1.6; }

/* =========================================================
   RESULTS
   ========================================================= */
.results {
  padding: 72px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(255,86,28,0.08), transparent 70%),
    var(--bg-elev);
}
.results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
@media (max-width: 760px) { .results-grid { grid-template-columns: repeat(2, 1fr); } }

.result-card strong {
  display: block;
  font-size: clamp(34px, 4.2vw, 52px);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
  line-height: 1;
}
.result-card span { color: var(--text-muted); font-size: 14px; }

/* =========================================================
   FAQ
   ========================================================= */
.faq { padding: 110px 0; }
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color .2s ease, background .2s ease;
}
.faq-item[open] { border-color: var(--border-warm); background: var(--bg-elev-2); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-icon {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: rgba(255,86,28,0.15);
  position: relative;
  flex-shrink: 0;
  transition: transform .3s ease, background .2s ease;
}
.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background: var(--brand-2);
  border-radius: 2px;
}
.faq-icon::before { left: 6px; right: 6px; top: 12px; height: 2px; }
.faq-icon::after { top: 6px; bottom: 6px; left: 12px; width: 2px; transition: transform .3s ease; }
.faq-item[open] .faq-icon { transform: rotate(90deg); }
.faq-item[open] .faq-icon::after { transform: rotate(90deg); }

.faq-body {
  padding: 0 24px 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.65;
}
.faq-body strong { color: var(--text); }
.faq-body a { color: var(--brand-1); border-bottom: 1px solid currentColor; }

/* =========================================================
   CTA FINAL
   ========================================================= */
.cta { padding: 110px 0 120px; }
.cta-box {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding: 64px 48px;
  background: linear-gradient(180deg, var(--bg-elev-2) 0%, var(--bg-elev) 100%);
  border: 1px solid var(--border-warm);
  border-radius: var(--r-xl);
  text-align: center;
  overflow: hidden;
}
@media (max-width: 640px) { .cta-box { padding: 48px 24px; } }
.cta-glow {
  position: absolute;
  inset: -40%;
  background: radial-gradient(ellipse 50% 40% at 50% 0%, rgba(255,86,28,0.32), transparent 60%);
  pointer-events: none;
}
.cta-title {
  margin-top: 14px;
  font-size: clamp(32px, 4.2vw, 52px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  position: relative;
}
.cta-sub {
  position: relative;
  margin-top: 18px;
  font-size: 17px;
  color: var(--text-muted);
  max-width: 580px;
  margin-left: auto; margin-right: auto;
  line-height: 1.6;
}
.cta-form {
  position: relative;
  margin-top: 36px;
  text-align: left;
  display: grid;
  gap: 14px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; color: var(--text-muted); font-weight: 500; }
.field input {
  padding: 14px 16px;
  font-family: inherit;
  font-size: 15px;
  color: var(--text);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-hi);
  border-radius: 12px;
  outline: none;
  transition: border-color .2s ease, background .2s ease;
}
.field input::placeholder { color: var(--text-dim); }
.field input:focus { border-color: var(--brand-2); background: rgba(255,86,28,0.06); }
.form-note { text-align: center; font-size: 13px; color: var(--text-dim); margin-top: 6px; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  padding: 60px 0 0;
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  padding-bottom: 40px;
}
@media (max-width: 760px) { .footer-inner { grid-template-columns: 1fr; } }
.footer-brand p {
  margin-top: 14px;
  color: var(--text-muted);
  font-size: 14px;
  max-width: 300px;
}
.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 560px) { .footer-cols { grid-template-columns: repeat(2, 1fr); } }
.footer-cols h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 14px;
  font-weight: 600;
}
.footer-cols a {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  padding: 4px 0;
  transition: color .2s ease;
}
.footer-cols a:hover { color: var(--brand-1); }

.footer-bottom {
  padding: 20px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
}

@media (max-width: 560px) {
  .hero { padding-top: 60px; }
  .section-head { margin-bottom: 40px; }
  .problem, .method, .tools, .niches, .how, .faq { padding: 72px 0; }
  .cta { padding: 72px 0 90px; }
}