:root {
    --bg: #000000;
    --bg-2: #0a0a0a;
    --bg-3: #121212;
    --bg-4: #181818;
    --line: #242424;
    --line-strong: #353535;
    --text: #ffffff;
    --text-dim: #a0a0a0;
    --text-faint: #606060;
    --silver: #c8c8c8;
    --silver-strong: #e8e8e8;
    --wa: #25d366;
    --wa-dark: #1fb257;
    --radius: 2px;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
  }
  body {
    font-family: 'Barlow', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-weight: 300;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  img { max-width: 100%; height: auto; display: block; }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; cursor: pointer; }

  .container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 clamp(18px, 4vw, 32px);
  }

  /* Tipografia inspirada na logo — leve, uppercase, tracking largo */
  h1, h2, h3, h4 {
    font-family: 'Barlow', sans-serif;
    font-weight: 200;
    letter-spacing: 0.04em;
    line-height: 1.1;
  }
  .display {
    font-weight: 200;
    text-transform: uppercase;
    letter-spacing: 0.06em;
  }
  .tracked {
    text-transform: uppercase;
    letter-spacing: 0.22em;
    font-weight: 300;
  }
  .tracked-sm {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-weight: 400;
    font-size: 12px;
  }

  /* -------- HEADER -------- */
  header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }
  .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    gap: 16px;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
  }
  .brand-logo {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    flex-shrink: 0;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line-strong);
    overflow: hidden;
  }
  .brand-logo svg {
    width: 60%;
    height: 60%;
    color: var(--silver-strong);
  }
  .brand-name {
    display: flex;
    flex-direction: column;
    line-height: 1;
    min-width: 0;
  }
  .brand-name .name {
    font-family: 'Barlow', sans-serif;
    font-weight: 300;
    font-size: clamp(15px, 2.2vw, 17px);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    white-space: nowrap;
  }
  .brand-name .tag {
    font-size: 10px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-top: 4px;
    white-space: nowrap;
  }
  .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--wa);
    color: #000;
    padding: 11px 18px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: background .2s;
    border-radius: var(--radius);
    flex-shrink: 0;
  }
  .nav-cta:hover { background: var(--wa-dark); color: #fff; }
  .nav-cta svg { width: 16px; height: 16px; flex-shrink: 0; }

  /* -------- HERO -------- */
  .hero {
    position: relative;
    padding: clamp(56px, 9vw, 96px) 0 clamp(84px, 12vw, 120px);
    border-bottom: 1px solid var(--line);
    overflow: hidden;
  }
  .scroll-down {
    display: none;
  }
  .scroll-down:hover {
    color: var(--text);
  }
  .scroll-down svg {
    width: 24px;
    height: 24px;
  }
  @keyframes bounce-scroll {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 8px); }
  }
  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 80% 60% at 70% 0%, rgba(255,255,255,0.04) 0%, transparent 60%),
      linear-gradient(180deg, transparent 0%, #000 100%);
    pointer-events: none;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: clamp(32px, 5vw, 64px);
    align-items: center;
    position: relative;
  }
  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--silver);
    margin-bottom: clamp(20px, 3vw, 28px);
  }
  .eyebrow::before {
    content: "";
    display: inline-block;
    width: 32px;
    height: 1px;
    background: var(--silver);
  }
  .hero h1 {
    font-size: clamp(32px, 6vw, 60px);
    margin-bottom: clamp(18px, 2.5vw, 26px);
    font-weight: 200;
    letter-spacing: 0.01em;
  }
  .hero h1 strong {
    font-weight: 500;
    color: var(--silver-strong);
  }
  .hero p.lead {
    font-size: clamp(15px, 1.5vw, 17px);
    color: var(--text-dim);
    max-width: 540px;
    margin-bottom: clamp(26px, 4vw, 36px);
    font-weight: 300;
  }
  .hero-ctas {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 26px;
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: all .2s ease;
    min-height: 50px;
  }
  .btn-primary {
    background: var(--text);
    color: #000;
    border-color: var(--text);
  }
  .btn-primary:hover { background: var(--silver-strong); border-color: var(--silver-strong); }
  .btn-ghost {
    background: transparent;
    border-color: var(--line-strong);
    color: var(--text);
  }
  .btn-ghost:hover { border-color: var(--text); }
  .btn-wa {
    background: var(--wa);
    color: #000;
    border-color: var(--wa);
  }
  .btn-wa:hover { background: var(--wa-dark); color: #fff; border-color: var(--wa-dark); }

  .hero-badges {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(12px, 3vw, 32px);
    margin-top: clamp(32px, 5vw, 48px);
    padding-top: clamp(22px, 3.5vw, 30px);
    border-top: 1px solid var(--line);
  }
  .badge-item strong {
    display: block;
    font-family: 'Barlow', sans-serif;
    font-weight: 200;
    font-size: clamp(22px, 3vw, 30px);
    color: var(--silver-strong);
    letter-spacing: 0.02em;
  }
  .badge-item span {
    display: block;
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-top: 6px;
    line-height: 1.4;
  }

  .hero-visual {
    position: relative;
    aspect-ratio: 4/5;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--line);
    background:
      linear-gradient(135deg, #141414 0%, #050505 100%);
  }
  .hero-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px),
      linear-gradient(0deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 0;
  }
  .hero-visual img {
    position: relative;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.85) contrast(1.02);
    z-index: 1;
  }
  .hero-visual .placeholder-note {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--text-faint);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    text-align: center;
    padding: 24px;
    z-index: 1;
  }
  .hero-visual .placeholder-note svg {
    width: 32px; height: 32px;
    stroke: var(--text-faint);
    stroke-width: 1;
    fill: none;
    margin-bottom: 4px;
  }
  .hero-visual .placeholder-note .file {
    font-family: 'Barlow', monospace;
    color: var(--silver);
    padding: 6px 10px;
    border: 1px solid var(--line-strong);
    letter-spacing: 0.1em;
    font-size: 10px;
    margin-top: 6px;
  }
  .hero-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 45%, rgba(0,0,0,0.35) 100%);
    pointer-events: none;
  }
  .hero-visual-tag {
    position: absolute;
    top: 18px;
    left: 18px;
    font-size: 10px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--text);
    padding: 7px 12px;
    border: 1px solid rgba(255,255,255,0.25);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    background: rgba(0,0,0,0.45);
    z-index: 2;
  }
  .hero-visual-caption {
    position: absolute;
    left: 22px;
    right: 22px;
    bottom: 22px;
    z-index: 2;
    color: #fff;
  }
  .hero-visual-caption .title {
    font-size: clamp(14px, 1.6vw, 17px);
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  .hero-visual-caption .sub {
    font-size: 12px;
    color: var(--text-dim);
    margin-top: 4px;
    letter-spacing: 0.04em;
  }

  /* -------- HERO CAROUSEL -------- */
  .hero-carousel {
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
  }
  .hc-track {
    display: flex;
    height: 100%;
    width: 100%;
    transition: transform .7s cubic-bezier(.55,.04,.2,1);
    will-change: transform;
  }
  .hc-slide {
    position: relative;
    flex: 0 0 100%;
    height: 100%;
    overflow: hidden;
  }
  .hc-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.9) contrast(1.02);
    transform: scale(1.06);
    transition: transform 6s ease;
  }
  .hc-slide.is-active img {
    transform: scale(1);
  }
  .hero-carousel::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.25) 0%, transparent 30%, transparent 70%, rgba(0,0,0,0.45) 100%);
    pointer-events: none;
    z-index: 2;
  }
  .hc-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.4);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    border-radius: 50%;
    z-index: 3;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    opacity: 0.65;
    transition: opacity .2s, background .2s, border-color .2s;
  }
  .hero-visual:hover .hc-arrow { opacity: 1; }
  .hc-arrow:hover {
    background: rgba(0,0,0,0.7);
    border-color: var(--silver);
    opacity: 1;
  }
  .hc-prev { left: 12px; }
  .hc-next { right: 12px; }
  .hc-arrow svg { width: 20px; height: 20px; }
  .hc-dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
  }
  .hc-dot {
    width: 8px;
    height: 8px;
    padding: 0;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.6);
    background: transparent;
    transition: all .25s ease;
  }
  .hc-dot.is-active {
    width: 22px;
    border-radius: 4px;
    background: var(--silver-strong);
    border-color: var(--silver-strong);
  }

  /* -------- SECTIONS -------- */
  section {
    padding: clamp(64px, 10vw, 104px) 0;
    border-bottom: 1px solid var(--line);
  }
  .section-head {
    max-width: 720px;
    margin-bottom: clamp(40px, 6vw, 64px);
  }
  .section-head h2 {
    font-size: clamp(26px, 4vw, 42px);
    margin-bottom: 16px;
    font-weight: 200;
    letter-spacing: 0.02em;
  }
  .section-head p {
    color: var(--text-dim);
    font-size: clamp(14px, 1.4vw, 16px);
    font-weight: 300;
  }

  /* -------- DIFERENCIAIS -------- */
  .features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
  }
  .feature {
    background: var(--bg-2);
    padding: clamp(24px, 3.5vw, 38px) clamp(20px, 2.8vw, 30px);
    transition: background .2s;
  }
  .feature:hover { background: var(--bg-3); }
  .feature-num {
    font-family: 'Barlow', sans-serif;
    font-size: 11px;
    color: var(--silver);
    margin-bottom: 22px;
    letter-spacing: 0.2em;
    font-weight: 500;
  }
  .feature h3 {
    font-size: clamp(17px, 1.6vw, 19px);
    margin-bottom: 12px;
    font-weight: 400;
    letter-spacing: 0.04em;
  }
  .feature p {
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.65;
    font-weight: 300;
  }

  /* -------- CATEGORIAS -------- */
  .cat-hint {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: clamp(20px, 3vw, 28px);
    padding: 14px 18px;
    border: 1px solid var(--line);
    border-left: 2px solid var(--wa);
    border-radius: var(--radius);
    background: var(--bg-2);
    color: var(--text);
    font-size: clamp(13px, 1.4vw, 15px);
    font-weight: 300;
    letter-spacing: 0.02em;
  }
  .cat-hint svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    color: var(--wa);
  }

  .categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
  }
  .cat {
    aspect-ratio: 1;
    background: var(--bg-2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    transition: all .2s;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    padding: 12px;
    text-align: center;
  }
  .cat::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(255,255,255,0.04) 0%, transparent 70%);
    opacity: 0;
    transition: opacity .3s;
  }
  .cat:hover {
    border-color: var(--silver);
    transform: translateY(-2px);
  }
  .cat:hover::before { opacity: 1; }
  .cat.is-selected {
    border-color: var(--silver-strong);
    background: var(--bg-3);
  }
  .cat.is-selected::after {
    content: "✓";
    position: absolute;
    top: 8px;
    right: 10px;
    font-size: 12px;
    color: var(--wa);
    z-index: 2;
  }
  .cat-icon {
    width: 36px;
    height: 36px;
    stroke: var(--silver);
    stroke-width: 1.3;
    fill: none;
  }
  .cat-name {
    font-family: 'Barlow', sans-serif;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text);
  }

  /* -------- GALERIA -------- */
  .gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  .g-item {
    aspect-ratio: 4/5;
    background: var(--bg-2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
  }
  .g-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .g-item-tag {
    position: absolute;
    bottom: 14px;
    left: 14px;
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #fff;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    padding: 6px 10px;
    border: 1px solid rgba(255,255,255,0.15);
    z-index: 2;
  }
  .g-item-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.22em;
    background-image:
      linear-gradient(135deg, rgba(255,255,255,0.02) 0%, transparent 60%),
      repeating-linear-gradient(45deg, rgba(255,255,255,0.018) 0 2px, transparent 2px 14px);
    text-align: center;
    padding: 14px;
  }

  .gallery-foot {
    margin-top: clamp(28px, 4vw, 42px);
    text-align: center;
    color: var(--text-dim);
    font-size: 13px;
    letter-spacing: 0.05em;
  }
  .gallery-foot a {
    color: var(--silver-strong);
    border-bottom: 1px solid var(--line-strong);
    padding-bottom: 2px;
    transition: border-color .15s;
  }
  .gallery-foot a:hover { border-color: var(--silver-strong); }

  /* -------- PROCESSO -------- */
  .process {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(16px, 2.5vw, 28px);
    counter-reset: step;
  }
  .step {
    padding: 22px 0;
    border-top: 1px solid var(--silver);
    position: relative;
  }
  .step::before {
    counter-increment: step;
    content: "0" counter(step);
    font-family: 'Barlow', sans-serif;
    font-size: 11px;
    color: var(--silver);
    letter-spacing: 0.2em;
    font-weight: 500;
    display: block;
    margin-bottom: 14px;
  }
  .step h3 {
    font-size: 16px;
    margin-bottom: 10px;
    font-weight: 400;
    letter-spacing: 0.03em;
  }
  .step p {
    font-size: 13px;
    color: var(--text-dim);
    line-height: 1.6;
    font-weight: 300;
  }

  /* -------- CTA -------- */
  .cta-section {
    padding: clamp(64px, 10vw, 104px) 0;
    border-bottom: 1px solid var(--line);
  }
  .cta-box {
    background: var(--bg-2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: clamp(40px, 8vw, 80px) clamp(24px, 5vw, 60px);
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .cta-box::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(255,255,255,0.03) 0%, transparent 70%);
    pointer-events: none;
  }
  .cta-content {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
  }
  .cta-content h2 {
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 16px;
    font-weight: 200;
    letter-spacing: 0.02em;
  }
  .cta-content p.lead {
    color: var(--text-dim);
    font-size: clamp(16px, 2vw, 18px);
    margin-bottom: 32px;
    font-weight: 300;
  }
  .cta-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: -16px auto 28px;
    padding: 9px 16px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: var(--bg-3);
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
  }
  .cta-pill strong {
    color: var(--silver-strong);
    font-weight: 500;
  }
  .cta-pill::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--wa);
    flex-shrink: 0;
  }
  .cta-benefits {
    display: flex;
    flex-direction: column;
    gap: 12px;
    list-style: none;
    margin-bottom: 40px;
    text-align: left;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
  }
  .cta-benefits li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--text);
    font-weight: 300;
    letter-spacing: 0.02em;
  }
  .cta-benefits li::before {
    content: "";
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--wa);
    flex-shrink: 0;
  }
  .cta-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 40px;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.12em;
    min-height: 60px;
    transition: transform 0.2s ease, background-color 0.2s ease;
    text-transform: uppercase;
    border-radius: var(--radius);
  }
  .cta-action:hover {
    transform: translateY(-2px);
  }
  .cta-action svg {
    margin-right: 12px;
  }


  /* -------- FOOTER -------- */
  footer {
    padding: clamp(40px, 6vw, 60px) 0 28px;
    background: var(--bg);
  }
  .foot-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: clamp(28px, 4vw, 48px);
    padding-bottom: clamp(30px, 4vw, 40px);
    border-bottom: 1px solid var(--line);
  }
  .foot-brand-wrap {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 18px;
  }
  .foot-brand-logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    flex-shrink: 0;
    background: #000;
    border: 1px solid var(--line-strong);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .foot-brand-logo svg {
    width: 60%;
    height: 60%;
    color: var(--silver-strong);
  }
  .foot-brand-text .name {
    font-family: 'Barlow', sans-serif;
    font-weight: 300;
    font-size: 18px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
  }
  .foot-brand-text .tag {
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.24em;
    text-transform: uppercase;
    margin-top: 6px;
  }
  .foot-col h4 {
    font-family: 'Barlow', sans-serif;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--silver);
    margin-bottom: 16px;
  }
  .foot-col p, .foot-col a {
    font-size: 13px;
    color: var(--text-dim);
    display: block;
    margin-bottom: 8px;
    transition: color .15s;
    font-weight: 300;
    letter-spacing: 0.02em;
  }
  .foot-col a:hover { color: var(--text); }
  .foot-brand p {
    font-size: 13px;
    color: var(--text-dim);
    max-width: 360px;
    font-weight: 300;
  }
  .foot-bottom {
    padding-top: 22px;
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-faint);
    flex-wrap: wrap;
    gap: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  /* -------- FLOATING WHATSAPP -------- */
  .wa-float {
    position: fixed;
    bottom: clamp(16px, 3vw, 24px);
    right: clamp(16px, 3vw, 24px);
    background: var(--wa);
    color: #000;
    width: clamp(52px, 7vw, 58px);
    height: clamp(52px, 7vw, 58px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 28px rgba(37,211,102,0.3), 0 0 0 1px rgba(255,255,255,0.05);
    z-index: 99;
    transition: transform .2s, background .2s;
  }
  .wa-float:hover { transform: scale(1.08); background: var(--wa-dark); color: #fff; }
  .wa-float svg { width: 60%; height: 60%; }

  /* -------- BACK TO TOP -------- */
  .back-to-top {
    position: fixed;
    bottom: clamp(76px, 10vw, 92px); /* Acima do botão WA */
    right: clamp(16px, 3vw, 24px);
    background: var(--bg-3);
    color: var(--text);
    width: clamp(40px, 5.5vw, 44px);
    height: clamp(40px, 5.5vw, 44px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line-strong);
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    z-index: 98;
    transition: all .3s ease;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8) translateY(10px);
    cursor: pointer;
  }
  .back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: scale(1) translateY(0);
  }
  .back-to-top:hover {
    background: var(--text);
    color: #000;
    border-color: var(--text);
    transform: translateY(-4px);
  }
  .back-to-top svg {
    width: 50%;
    height: 50%;
  }

  /* -------- RESPONSIVE -------- */
  @media (max-width: 1024px) {
    .features { grid-template-columns: repeat(2, 1fr); }
    .process { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  }

  @media (max-width: 860px) {
    .hero-grid { 
      grid-template-columns: 1fr; 
      display: flex;
      flex-direction: column;
    }
    .hero-grid > div:first-of-type {
      display: contents;
    }
    .eyebrow { order: 1; }
    .hero h1 { order: 2; margin-bottom: 24px; }
    .hero-visual { 
      order: 3; 
      aspect-ratio: 5/4; 
      max-width: 100%; 
      margin: 0 0 32px 0; 
      width: 100%;
    }
    .hero-badges { 
      order: 6; 
      margin-top: 0; 
      padding-top: 0; 
      border-top: none; 
      margin-bottom: 32px;
      grid-template-columns: repeat(3, 1fr);
    }
    .hero-ctas { 
      order: 4; 
      margin-bottom: 24px;
    }
    .hero p.lead { 
      order: 5; 
      margin-bottom: 24px;
    }
    .scroll-down {
      display: flex;
      order: 7;
      margin: 0 auto;
      width: 44px;
      height: 44px;
      align-items: center;
      justify-content: center;
      color: var(--text-dim);
      animation: bounce-scroll 2s infinite ease-in-out;
    }

    .categories { grid-template-columns: repeat(3, 1fr); }
    .gallery { grid-template-columns: repeat(2, 1fr); }
    .form-grid { grid-template-columns: 1fr; }
    .foot-grid { grid-template-columns: 1fr; }
    .brand-name .tag { display: none; }
  }

  @media (max-width: 600px) {
    .nav { padding: 12px 0; }
    .nav-cta { padding: 10px 14px; }
    .nav-cta-label { display: none; }
    .features { grid-template-columns: 1fr; }
    .categories { grid-template-columns: repeat(2, 1fr); }
    .field-row { grid-template-columns: 1fr; gap: 0; }
    .hero-ctas { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%; }
    .btn { width: 100%; padding: 15px 8px; font-size: 11.5px; }
    .foot-bottom { flex-direction: column; align-items: flex-start; }
    .hero-badges { grid-template-columns: 1fr 1fr; row-gap: 18px; }
    .hero-badges .badge-item:nth-child(3) { grid-column: 1 / -1; }
    .hero-visual-tag { top: 12px; left: 12px; padding: 6px 10px; }
    .hero-visual-caption { left: 14px; right: 14px; bottom: 14px; }
  }

  @media (max-width: 380px) {
    .brand-logo { width: 36px; height: 36px; }
    .brand-name .name { font-size: 13px; letter-spacing: 0.18em; }
    .categories { gap: 8px; }
    .cat { gap: 10px; padding: 10px; }
    .cat-icon { width: 30px; height: 30px; }
    .cat-name { font-size: 11px; letter-spacing: 0.12em; }
  }

  /* -------- FIELD ERROR STATES -------- */
  .field.has-error input,
  .field.has-error select,
  .field.has-error textarea {
    border-color: #c94b4b;
  }
  .field-error {
    display: none;
    font-size: 11px;
    color: #e07a7a;
    margin-top: 6px;
    letter-spacing: 0.04em;
  }
  .field.has-error .field-error { display: block; }

  /* Loading state do botão */
  .btn[data-loading="true"] {
    pointer-events: none;
    opacity: 0.85;
  }
  .btn[data-loading="true"] .btn-label,
  .btn[data-loading="true"] svg:not(.spinner) { opacity: 0; }
  .btn .spinner {
    position: absolute;
    width: 18px; height: 18px;
    animation: spin 0.8s linear infinite;
    display: none;
  }
  .btn[data-loading="true"] .spinner { display: block; }
  .btn { position: relative; }
  @keyframes spin { to { transform: rotate(360deg); } }

  /* Fade-in ao entrar no viewport */
  .reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .7s ease, transform .7s ease;
  }
  .reveal.is-visible {
    opacity: 1;
    transform: none;
  }

  /* Reduz motion quando o usuário preferir */
  @media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; }
  }