/* =========================================================
   ISAL Curvas e Conexões — estilo principal
   Paleta: grafite + aço + azul-aço | Mobile-first
   ========================================================= */

:root{
  --ink:        #13161b;   /* grafite profundo (levemente azulado) */
  --ink-2:      #181c23;   /* superfície escura elevada 1 */
  --ink-3:      #1f242c;   /* superfície escura elevada 2 */
  --ink-line:   #2a313b;   /* linhas no escuro */

  --paper:      #ffffff;
  --paper-2:    #f4f5f7;   /* seção clara suave */
  --paper-3:    #eceef1;

  --steel:      #8b97a6;   /* aço médio */
  --steel-d:    #5a6470;

  --accent:     #2f6fed;   /* azul aço */
  --accent-d:   #1f57c9;
  --accent-soft:#e8f0ff;

  --wa:         #25d366;   /* verde WhatsApp */
  --wa-d:       #1ebe5a;

  --text:       #11151b;   /* texto em fundo claro */
  --text-soft:  #4c545f;
  --text-mut:   #707a86;
  --text-light: #e8ebef;   /* texto em fundo escuro */
  --text-light-soft:#aab3bf;

  --ring: rgba(47,111,237,.35);

  --r-sm: 10px;
  --r:    16px;
  --r-lg: 22px;

  --sh-1: 0 1px 2px rgba(16,22,30,.06), 0 4px 14px rgba(16,22,30,.06);
  --sh-2: 0 10px 30px rgba(16,22,30,.10);
  --sh-3: 0 24px 60px rgba(16,22,30,.16);

  --maxw: 1200px;
  --gap: clamp(16px, 3vw, 28px);

  --font-head: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

/* ---------- reset ---------- */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  font-family:var(--font-body);
  color:var(--text);
  background:var(--paper);
  line-height:1.6;
  font-size:16px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{ display:block; max-width:100%; height:auto; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }
ul{ list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-head); line-height:1.12; font-weight:700; letter-spacing:-.02em; color:var(--text); }
:focus-visible{ outline:3px solid var(--ring); outline-offset:2px; border-radius:6px; }
section{ scroll-margin-top:84px; }

/* ---------- layout ---------- */
.container{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:clamp(18px,5vw,40px); }
.container--narrow{ max-width:820px; }
.section{ padding:clamp(56px,8vw,104px) 0; }
.section--soft{ background:var(--paper-2); }
.section--dark{ background:var(--ink); color:var(--text-light); }
.section--dark .section__title{ color:#fff; }
.section--dark .section__sub{ color:var(--text-light-soft); }

.section__head{ max-width:720px; margin:0 auto clamp(34px,5vw,56px); text-align:center; }
.section__title{ font-size:clamp(1.7rem,4.2vw,2.7rem); }
.section__sub{ margin-top:14px; color:var(--text-soft); font-size:clamp(1rem,1.6vw,1.12rem); }

.eyebrow{
  display:inline-flex; align-items:center; gap:9px;
  font-family:var(--font-head); font-weight:600; font-size:.82rem;
  letter-spacing:.06em; text-transform:uppercase; color:var(--accent-d);
  background:var(--accent-soft); padding:7px 14px; border-radius:100px; margin-bottom:16px;
}
.eyebrow--light{ color:#cfe0ff; background:rgba(47,111,237,.16); }
.eyebrow__dot{ width:7px; height:7px; border-radius:50%; background:var(--accent); box-shadow:0 0 0 4px rgba(47,111,237,.18); }
.text-steel{
  background:linear-gradient(120deg,#9fb0c4,#dfe7f1 35%,#7c8a9c 70%,#c7d2df);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

/* ---------- botões ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  font-family:var(--font-head); font-weight:600; font-size:.98rem;
  padding:13px 22px; border-radius:100px; cursor:pointer;
  transition:transform .18s ease, box-shadow .25s ease, background .2s ease, color .2s ease;
  white-space:nowrap; line-height:1;
}
.btn svg{ flex:none; }
.btn--primary{ background:var(--accent); color:#fff; box-shadow:0 8px 22px rgba(47,111,237,.32); }
.btn--primary:hover{ background:var(--accent-d); transform:translateY(-2px); box-shadow:0 12px 28px rgba(47,111,237,.42); }
.btn--ghost{ background:rgba(255,255,255,.06); color:#fff; border:1px solid rgba(255,255,255,.28); }
.btn--ghost:hover{ background:rgba(255,255,255,.14); transform:translateY(-2px); }
.btn--lg{ padding:16px 28px; font-size:1.04rem; }
.btn--sm{ padding:10px 18px; font-size:.9rem; }
.btn--block{ width:100%; }

/* ---------- header ---------- */
.header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  background:rgba(19,22,27,.0); transition:background .3s ease, box-shadow .3s ease, padding .3s ease;
  padding:14px 0;
}
.header.scrolled{ background:rgba(17,20,25,.92); backdrop-filter:blur(12px); box-shadow:0 1px 0 rgba(255,255,255,.06), var(--sh-2); padding:9px 0; }
.header__inner{ display:flex; align-items:center; justify-content:space-between; gap:18px; }

.brand{ display:inline-flex; align-items:center; gap:11px; }
.brand__logo{ width:44px; height:44px; object-fit:contain; filter:drop-shadow(0 2px 6px rgba(0,0,0,.4)); }
.brand__text{ display:flex; flex-direction:column; line-height:1.05; }
.brand__text strong{ font-family:var(--font-head); font-weight:800; font-size:1.22rem; letter-spacing:.04em; color:#fff; }
.brand__text small{ font-size:.72rem; letter-spacing:.14em; text-transform:uppercase; color:var(--steel); }

.nav{ display:flex; gap:4px; }
.nav__link{
  font-family:var(--font-head); font-weight:500; font-size:.95rem; color:var(--text-light-soft);
  padding:9px 14px; border-radius:100px; transition:color .2s, background .2s; white-space:nowrap;
}
.nav__link:hover{ color:#fff; background:rgba(255,255,255,.08); }

.header__actions{ display:flex; align-items:center; gap:12px; }
.header__phone{ display:inline-flex; align-items:center; gap:8px; color:#fff; font-weight:600; font-size:.92rem; font-family:var(--font-head); }
.header__phone svg{ color:var(--accent); }
.header__phone:hover{ color:var(--accent-soft); }

.nav-toggle{ display:none; width:44px; height:44px; flex-direction:column; justify-content:center; align-items:center; gap:5px; border-radius:10px; }
.nav-toggle span{ width:24px; height:2px; background:#fff; border-radius:2px; transition:transform .3s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero{ position:relative; color:var(--text-light); padding:clamp(120px,18vh,180px) 0 clamp(60px,9vw,96px); overflow:hidden; isolation:isolate; }
.hero__bg{
  position:absolute; inset:0; z-index:-2;
  background:
    linear-gradient(180deg, rgba(13,16,20,.78) 0%, rgba(13,16,20,.86) 55%, rgba(13,16,20,.96) 100%),
    linear-gradient(105deg, rgba(13,16,20,.96) 8%, rgba(13,16,20,.45) 55%, rgba(13,16,20,.2) 100%),
    url("../img/hero.jpg");
  background-size:cover; background-position:center right;
}
@supports (background-image: image-set(url("x") type("image/avif"))){
  .hero__bg{
    background:
      linear-gradient(180deg, rgba(13,16,20,.78) 0%, rgba(13,16,20,.86) 55%, rgba(13,16,20,.96) 100%),
      linear-gradient(105deg, rgba(13,16,20,.96) 8%, rgba(13,16,20,.45) 55%, rgba(13,16,20,.2) 100%),
      image-set(url("../img/hero.avif") type("image/avif"), url("../img/hero.jpg") type("image/jpeg"));
    background-size:cover; background-position:center right;
  }
}
.hero::after{ /* brilho de acento */
  content:""; position:absolute; z-index:-1; width:60vw; height:60vw; max-width:720px; max-height:720px;
  right:-12vw; top:-16vw; border-radius:50%;
  background:radial-gradient(circle, rgba(47,111,237,.28), transparent 62%); filter:blur(8px);
}
.hero__content{ max-width:720px; }
.hero__title{ font-size:clamp(2.2rem,6vw,4rem); font-weight:800; color:#fff; }
.hero__lead{ margin-top:20px; font-size:clamp(1.05rem,2vw,1.28rem); color:var(--text-light-soft); max-width:600px; }
.hero__cta{ display:flex; flex-wrap:wrap; gap:14px; margin-top:32px; }
.hero__trust{ display:flex; flex-wrap:wrap; gap:18px 26px; margin-top:34px; padding-top:26px; border-top:1px solid rgba(255,255,255,.12); }
.hero__trust li{ display:inline-flex; align-items:center; gap:9px; font-weight:500; font-size:.96rem; color:var(--text-light); }
.hero__trust svg{ color:var(--wa); flex:none; }

/* ---------- stats ---------- */
.stats{ background:var(--ink-2); color:var(--text-light); border-top:1px solid var(--ink-line); }
.stats__grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--ink-line); }
.stat{ background:var(--ink-2); padding:clamp(26px,4vw,40px) 18px; text-align:center; }
.stat__num{ display:block; font-family:var(--font-head); font-weight:800; font-size:clamp(1.9rem,4.4vw,2.9rem); color:#fff; letter-spacing:-.02em; }
.stat__num--text{ background:linear-gradient(120deg,#9fb0c4,#e3ebf4,#7c8a9c); -webkit-background-clip:text; background-clip:text; color:transparent; }
.stat__label{ display:block; margin-top:8px; font-size:.92rem; color:var(--text-light-soft); }

/* ---------- produtos ---------- */
.products{ display:grid; grid-template-columns:repeat(3,1fr); gap:var(--gap); }
.product{
  background:var(--paper); border:1px solid var(--paper-3); border-radius:var(--r-lg); overflow:hidden;
  display:flex; flex-direction:column; box-shadow:var(--sh-1);
  transition:transform .25s ease, box-shadow .3s ease, border-color .3s ease;
}
.product:hover{ transform:translateY(-6px); box-shadow:var(--sh-3); border-color:#dbe6fb; }
.product__media{ position:relative; aspect-ratio:4/3; background:linear-gradient(160deg,#f7f8fa,#e9edf2); overflow:hidden; }
.product__media img{ width:100%; height:100%; object-fit:contain; padding:14px; transition:transform .4s ease; }
.product:hover .product__media img{ transform:scale(1.05); }
.product__body{ padding:22px 22px 24px; display:flex; flex-direction:column; flex:1; }
.product__title{ font-size:1.32rem; }
.product__desc{ margin-top:9px; color:var(--text-soft); font-size:.97rem; flex:1; }
.product__tags{ display:flex; flex-wrap:wrap; gap:7px; margin:16px 0 18px; }
.product__tags li{ font-size:.76rem; font-weight:600; color:var(--steel-d); background:var(--paper-2); border:1px solid var(--paper-3); padding:5px 10px; border-radius:7px; }
.product__link{ display:inline-flex; align-items:center; gap:7px; font-family:var(--font-head); font-weight:600; color:var(--accent-d); font-size:.95rem; }
.product__link span{ transition:transform .2s; }
.product__link:hover span{ transform:translateX(4px); }

/* ---------- features ---------- */
.features{ display:grid; grid-template-columns:repeat(3,1fr); gap:var(--gap); }
.feature{ background:var(--ink-2); border:1px solid var(--ink-line); border-radius:var(--r); padding:28px 26px; transition:transform .25s, border-color .3s, background .3s; }
.feature:hover{ transform:translateY(-4px); border-color:rgba(47,111,237,.5); background:var(--ink-3); }
.feature__icon{ display:inline-flex; align-items:center; justify-content:center; width:54px; height:54px; border-radius:14px; background:rgba(47,111,237,.16); color:#7fa9ff; margin-bottom:18px; }
.feature__title{ color:#fff; font-size:1.16rem; margin-bottom:8px; }
.feature p{ color:var(--text-light-soft); font-size:.96rem; }

/* ---------- segmentos ---------- */
.segments{ display:grid; grid-template-columns:repeat(6,1fr); gap:var(--gap); }
.segment{
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:12px; text-align:center;
  background:var(--paper); border:1px solid var(--paper-3); border-radius:var(--r); padding:26px 12px; aspect-ratio:1/.92;
  font-family:var(--font-head); font-weight:600; font-size:.92rem; color:var(--text);
  box-shadow:var(--sh-1); transition:transform .22s, box-shadow .3s, border-color .3s;
}
.segment:hover{ transform:translateY(-5px); box-shadow:var(--sh-2); border-color:#cfe0ff; }
.segment__ic{ font-size:2rem; line-height:1; }

/* ---------- empresa ---------- */
.about{ display:grid; grid-template-columns:1.05fr 1fr; gap:clamp(28px,5vw,64px); align-items:center; }
.about__media{ position:relative; }
.about__media img{ width:100%; border-radius:var(--r-lg); box-shadow:var(--sh-3); aspect-ratio:4/3; object-fit:cover; }
.about__badge{
  position:absolute; left:-10px; bottom:-18px; background:var(--accent); color:#fff;
  padding:16px 22px; border-radius:var(--r); box-shadow:var(--sh-2); display:flex; flex-direction:column;
}
.about__badge strong{ font-family:var(--font-head); font-size:1.05rem; }
.about__badge span{ font-size:.82rem; opacity:.9; }
.about__content p{ margin-top:14px; color:var(--text-soft); }
.about__list{ margin:22px 0 26px; display:flex; flex-direction:column; gap:12px; }
.about__list li{ display:flex; align-items:center; gap:11px; font-weight:500; }
.about__list svg{ color:var(--accent); flex:none; }

/* ---------- galeria ---------- */
.gallery{ display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
.gallery__item{ position:relative; border-radius:var(--r); overflow:hidden; aspect-ratio:1/1; background:var(--paper-3); box-shadow:var(--sh-1); }
.gallery__item img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.gallery__item::after{ content:"⤢"; position:absolute; inset:0; display:flex; align-items:center; justify-content:center; font-size:1.6rem; color:#fff; background:rgba(19,22,27,.0); opacity:0; transition:opacity .3s, background .3s; }
.gallery__item:hover img{ transform:scale(1.08); }
.gallery__item:hover::after{ opacity:1; background:rgba(19,22,27,.45); }

/* ---------- processo ---------- */
.steps{ display:grid; grid-template-columns:repeat(4,1fr); gap:var(--gap); counter-reset:s; }
.step{ position:relative; padding:30px 24px; border:1px solid var(--ink-line); border-radius:var(--r); background:linear-gradient(180deg,var(--ink-2),var(--ink)); }
.step__num{ font-family:var(--font-head); font-weight:800; font-size:2.4rem; color:transparent; -webkit-text-stroke:1.5px rgba(127,169,255,.55); display:block; margin-bottom:12px; }
.step h3{ color:#fff; font-size:1.18rem; margin-bottom:7px; }
.step p{ color:var(--text-light-soft); font-size:.95rem; }
.step:not(:last-child)::after{ content:"→"; position:absolute; right:-13px; top:50%; transform:translateY(-50%); color:var(--accent); font-size:1.3rem; z-index:2; }

/* ---------- specs / qualidade ---------- */
.specs{ display:grid; grid-template-columns:repeat(3,1fr); gap:var(--gap); }
.spec{ background:var(--paper); border:1px solid var(--paper-3); border-radius:var(--r); padding:28px 26px; box-shadow:var(--sh-1); }
.spec__title{ font-size:1.16rem; margin-bottom:16px; padding-bottom:14px; border-bottom:2px solid var(--accent-soft); }
.spec__chips{ display:flex; flex-wrap:wrap; gap:8px; }
.spec__chips li{ font-family:var(--font-head); font-weight:600; font-size:.84rem; color:var(--text); background:var(--paper-2); border:1px solid var(--paper-3); padding:7px 12px; border-radius:8px; }
.spec__note{ margin-top:16px; font-size:.9rem; color:var(--text-mut); }

/* ---------- faq ---------- */
.faq{ display:flex; flex-direction:column; gap:12px; }
.faq__item{ background:var(--paper); border:1px solid var(--paper-3); border-radius:var(--r); overflow:hidden; box-shadow:var(--sh-1); }
.faq__item summary{
  list-style:none; cursor:pointer; padding:20px 24px; font-family:var(--font-head); font-weight:600; font-size:1.04rem;
  display:flex; align-items:center; justify-content:space-between; gap:16px; transition:color .2s;
}
.faq__item summary::-webkit-details-marker{ display:none; }
.faq__item summary::after{ content:"+"; font-size:1.5rem; color:var(--accent); transition:transform .3s; flex:none; }
.faq__item[open] summary{ color:var(--accent-d); }
.faq__item[open] summary::after{ transform:rotate(45deg); }
.faq__a{ padding:0 24px 22px; color:var(--text-soft); }

/* ---------- contato ---------- */
.contact{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,5vw,60px); align-items:start; }
.contact__lead{ margin-top:14px; color:var(--text-light-soft); max-width:440px; }
.contact__list{ margin-top:30px; display:flex; flex-direction:column; gap:18px; }
.contact__list li{ display:flex; align-items:center; gap:14px; }
.contact__ic{ display:inline-flex; align-items:center; justify-content:center; width:46px; height:46px; border-radius:12px; background:rgba(255,255,255,.07); color:#7fa9ff; flex:none; }
.contact__list strong{ display:block; font-family:var(--font-head); font-size:.84rem; text-transform:uppercase; letter-spacing:.06em; color:var(--text-light-soft); }
.contact__list a{ color:#fff; font-weight:500; }
.contact__list a:hover{ color:var(--accent-soft); }

.contact__form-wrap{ background:var(--paper); border-radius:var(--r-lg); padding:clamp(24px,4vw,36px); box-shadow:var(--sh-3); }
.form__title{ font-size:1.4rem; color:var(--text); }
.form__hint{ margin-top:6px; color:var(--text-mut); font-size:.92rem; margin-bottom:22px; }
.form__row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ display:flex; flex-direction:column; gap:7px; margin-bottom:16px; }
.field span{ font-weight:600; font-size:.86rem; color:var(--text-soft); }
.field input, .field select, .field textarea{
  font-family:inherit; font-size:.98rem; color:var(--text); background:var(--paper-2);
  border:1.5px solid var(--paper-3); border-radius:var(--r-sm); padding:13px 15px; transition:border-color .2s, background .2s, box-shadow .2s; width:100%;
}
.field textarea{ resize:vertical; min-height:110px; }
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color:var(--accent); background:#fff; box-shadow:0 0 0 4px var(--ring); }
.field input.invalid, .field textarea.invalid{ border-color:#e05656; box-shadow:0 0 0 4px rgba(224,86,86,.2); }
.form__legal{ margin-top:14px; font-size:.8rem; color:var(--text-mut); text-align:center; }
.btn--primary.btn--block svg{ color:#fff; }

/* ---------- footer ---------- */
.footer{ background:#0e1116; color:var(--text-light-soft); padding-top:clamp(48px,7vw,72px); }
.footer__grid{ display:grid; grid-template-columns:2fr 1fr 1fr 1.4fr; gap:clamp(28px,4vw,48px); padding-bottom:48px; }
.brand--footer .brand__text strong{ font-size:1.3rem; }
.footer__brand p{ margin:18px 0; font-size:.95rem; max-width:340px; }
.footer__social{ display:flex; gap:10px; }
.footer__social a{ display:inline-flex; align-items:center; justify-content:center; width:42px; height:42px; border-radius:11px; background:rgba(255,255,255,.06); color:#fff; transition:background .2s, transform .2s; }
.footer__social a:hover{ background:var(--accent); transform:translateY(-3px); }
.footer__col h4{ color:#fff; font-size:1rem; margin-bottom:16px; }
.footer__col ul{ display:flex; flex-direction:column; gap:11px; }
.footer__col a{ font-size:.94rem; transition:color .2s; }
.footer__col a:hover{ color:#fff; }
.footer__bottom{ border-top:1px solid rgba(255,255,255,.08); padding:22px 0; }
.footer__bottom-inner{ display:flex; flex-wrap:wrap; gap:8px; justify-content:space-between; font-size:.85rem; }
.footer__credit{ color:var(--steel); }

/* ---------- WhatsApp flutuante ---------- */
.wa-float{
  position:fixed; right:20px; bottom:20px; z-index:90;
  width:60px; height:60px; border-radius:50%; background:var(--wa); color:#fff;
  display:flex; align-items:center; justify-content:center; box-shadow:0 10px 26px rgba(37,211,102,.5);
  transition:transform .25s, box-shadow .25s;
}
.wa-float:hover{ transform:scale(1.08); background:var(--wa-d); }
.wa-float__pulse{ position:absolute; inset:0; border-radius:50%; background:var(--wa); z-index:-1; animation:wa 2.2s ease-out infinite; }
@keyframes wa{ 0%{ transform:scale(1); opacity:.6; } 100%{ transform:scale(1.8); opacity:0; } }

/* ---------- WhatsApp: seletor de atendentes ---------- */
.wa-widget{
  position:fixed; right:20px; bottom:92px; z-index:95;
  width:320px; max-width:calc(100vw - 40px); transform-origin:bottom right;
  opacity:0; transform:translateY(12px) scale(.95); pointer-events:none;
  transition:opacity .22s ease, transform .24s cubic-bezier(.34,1.3,.6,1);
}
.wa-widget.open{ opacity:1; transform:none; pointer-events:auto; }
.wa-widget[hidden]{ display:none; }
.wa-widget__card{ background:#fff; border-radius:18px; overflow:hidden; box-shadow:0 24px 60px rgba(8,10,13,.34); border:1px solid rgba(0,0,0,.06); }
.wa-widget__head{ display:flex; align-items:center; gap:12px; padding:15px 16px; background:linear-gradient(135deg,#128C7E,#075E54); color:#fff; }
.wa-widget__brand{ display:inline-flex; align-items:center; justify-content:center; width:40px; height:40px; border-radius:50%; background:rgba(255,255,255,.18); flex:none; }
.wa-widget__title{ flex:1; line-height:1.2; }
.wa-widget__title strong{ display:block; font-family:var(--font-head); font-size:1rem; }
.wa-widget__title small{ font-size:.78rem; opacity:.92; }
.wa-widget__close{ color:#fff; font-size:1.6rem; line-height:1; width:30px; height:30px; border-radius:8px; flex:none; opacity:.85; transition:opacity .2s, background .2s; }
.wa-widget__close:hover{ opacity:1; background:rgba(255,255,255,.16); }
.wa-widget__list{ padding:7px; background:#f6f7f9; }
.wa-att{ display:flex; align-items:center; gap:13px; padding:11px 12px; border-radius:12px; transition:background .18s, transform .18s, box-shadow .18s; }
.wa-att:hover{ background:#fff; transform:translateX(2px); box-shadow:var(--sh-1); }
.wa-att + .wa-att{ margin-top:4px; }
.wa-att__av{ width:46px; height:46px; border-radius:50%; flex:none; display:flex; align-items:center; justify-content:center; color:#fff; font-family:var(--font-head); font-weight:700; font-size:1.15rem; }
.wa-att:nth-child(1) .wa-att__av{ background:linear-gradient(135deg,#2f6fed,#1f57c9); }
.wa-att:nth-child(2) .wa-att__av{ background:linear-gradient(135deg,#25d366,#0b7a63); }
.wa-att:nth-child(3) .wa-att__av{ background:linear-gradient(135deg,#f0883e,#d96d1f); }
.wa-att__info{ flex:1; line-height:1.25; }
.wa-att__info strong{ display:block; color:#11151b; font-size:.98rem; }
.wa-att__info small{ color:#6b7280; font-size:.82rem; }
.wa-att__go{ color:var(--wa); flex:none; }

/* ---------- lightbox ---------- */
.lightbox{ position:fixed; inset:0; z-index:200; background:rgba(8,10,13,.92); display:none; align-items:center; justify-content:center; padding:24px; }
.lightbox.open{ display:flex; animation:fade .25s ease; }
.lightbox__img{ max-width:92vw; max-height:88vh; border-radius:12px; box-shadow:var(--sh-3); }
.lightbox__close{ position:absolute; top:18px; right:24px; font-size:2.4rem; color:#fff; line-height:1; width:48px; height:48px; }
@keyframes fade{ from{ opacity:0; } to{ opacity:1; } }

/* ---------- reveal on scroll ---------- */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }

/* =========================================================
   RESPONSIVO
   ========================================================= */
@media (max-width:1024px){
  .products,.features,.specs{ grid-template-columns:repeat(2,1fr); }
  .segments{ grid-template-columns:repeat(4,1fr); }
  .gallery{ grid-template-columns:repeat(3,1fr); }
  .steps{ grid-template-columns:repeat(2,1fr); }
  .step:nth-child(2)::after{ display:none; }
  .footer__grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width:860px){
  /* o backdrop-filter no header cria "containing block" e prende o menu fixed
     dentro do header quando rolado — desligamos no mobile para o sidebar
     ancorar na viewport inteira (corrige o menu bugado fora do hero) */
  .header.scrolled{ backdrop-filter:none; -webkit-backdrop-filter:none; background:rgba(15,18,23,.98); }

  /* menu mobile */
  .nav{
    position:fixed; inset:0 0 0 auto; width:min(82vw,330px); flex-direction:column; gap:6px;
    background:var(--ink-2); padding:90px 22px 30px; transform:translateX(100%);
    transition:transform .32s cubic-bezier(.4,0,.2,1); box-shadow:-20px 0 50px rgba(0,0,0,.4);
    border-left:1px solid var(--ink-line);
  }
  .nav.open{ transform:translateX(0); }
  .nav__link{ font-size:1.08rem; padding:14px 16px; width:100%; }
  .nav-toggle{ display:flex; z-index:101; }
  .header__phone span{ display:none; }
  .header__phone{ width:40px; height:40px; justify-content:center; border-radius:10px; background:rgba(255,255,255,.07); }
  .nav-backdrop{ position:fixed; inset:0; background:rgba(8,10,13,.5); z-index:99; opacity:0; visibility:hidden; transition:opacity .3s; }
  .nav-backdrop.open{ opacity:1; visibility:visible; }
}

@media (max-width:680px){
  .stats__grid{ grid-template-columns:repeat(2,1fr); }
  .about{ grid-template-columns:1fr; }
  .about__media{ order:-1; }
  .contact{ grid-template-columns:1fr; }
  .contact__info .section__title{ color:#fff; }
}

@media (max-width:560px){
  .products,.features,.specs,.steps{ grid-template-columns:1fr; }
  .segments{ grid-template-columns:repeat(2,1fr); }
  .gallery{ grid-template-columns:repeat(2,1fr); gap:10px; }
  .form__row{ grid-template-columns:1fr; }
  .step:not(:last-child)::after{ display:none; }
  .hero__cta .btn{ flex:1 1 100%; }
  .footer__grid{ grid-template-columns:1fr; }
  .footer__bottom-inner{ flex-direction:column; }
  .about__badge{ left:0; }
}

@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
  .reveal{ opacity:1; transform:none; }
}