/* ===================================================================
   FCF Diesel — Landing V3 · hero interativo (mobile-first)
   Identidade: azul #364EA2 + grafite + branco. Tema light.
   =================================================================== */

:root{
  --blue:#364EA2; --blue-600:#2C4088; --blue-700:#213068;
  --blue-50:#EEF1FA; --blue-100:#DEE4F5;
  --ink:#2C2F36; --ink-soft:#474B54; --gray:#6E7480;
  --line:#E3E7F0; --bg:#FFFFFF; --bg-2:#F4F6FB; --wa:#25D366;
  --shadow:0 20px 50px -22px rgba(33,48,104,.35);
  --shadow-sm:0 8px 22px -12px rgba(33,48,104,.28);
  --r:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:"Saira Condensed",sans-serif;font-weight:700;line-height:1;margin:0}
a{color:inherit}
.wrap{width:min(1180px,92vw);margin-inline:auto}
.eyebrow{display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:.72rem;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--blue);margin-bottom:14px}
.eyebrow--on-blue{color:#BFD0FF}

/* buttons */
.btn{--pad:12px 20px;display:inline-flex;align-items:center;gap:9px;justify-content:center;padding:var(--pad);
  border-radius:999px;border:1.5px solid transparent;font-family:"Saira Condensed",sans-serif;font-weight:600;
  font-size:1.05rem;letter-spacing:.03em;text-decoration:none;cursor:pointer;
  transition:transform .16s,background .16s,box-shadow .16s,border-color .16s}
.btn:active{transform:translateY(1px)}
.btn--lg{--pad:16px 28px;font-size:1.2rem}
.btn--sm{--pad:10px 18px;font-size:.98rem}
.btn--block{display:flex;width:100%}
.btn--wa{background:var(--wa);color:#04310f;box-shadow:0 12px 26px -12px rgba(37,211,102,.75)}
.btn--wa:hover{background:#20c15c;transform:translateY(-2px)}
.btn--blue{background:var(--blue);color:#fff}
.btn--blue:hover{background:var(--blue-600);transform:translateY(-2px)}
.btn--outline{background:transparent;border-color:var(--line);color:var(--ink)}
.btn--outline:hover{border-color:var(--blue);color:var(--blue)}
.ico-wa{width:1.15em;height:1.15em;fill:currentColor;flex:none}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;transition:border-color .2s,box-shadow .2s}
.nav.is-scrolled{border-color:var(--line);box-shadow:0 6px 20px -16px rgba(33,48,104,.5)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand__logo{height:28px;width:auto;display:block}
.brand__tag{font-family:"IBM Plex Mono",monospace;font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gray);border-left:1px solid var(--line);padding-left:12px}
.nav__links{display:flex;gap:26px}
.nav__links a{text-decoration:none;font-size:.95rem;font-weight:500;color:var(--ink-soft);transition:color .15s}
.nav__links a:hover{color:var(--blue)}
.nav__cta{--pad:10px 16px;font-size:.98rem}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;padding:44px 0 60px}
.hero__bg-clean{position:absolute;inset:0;z-index:-1;
  background:radial-gradient(120% 80% at 100% 0%,var(--blue-50) 0%,#fff 60%)}
.hero__bg-clean::before{content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(90deg,transparent 0 66px,rgba(54,78,162,.04) 66px 67px)}
.hero__inner{display:grid;grid-template-columns:1fr;gap:26px;align-items:center}
.hero__head{max-width:640px}
.hero__title{font-size:clamp(2.5rem,8vw,4rem);text-transform:uppercase;letter-spacing:-.01em}
.hero__title em{color:var(--blue);font-style:italic}
.hero__lead{color:var(--ink-soft);font-size:1.1rem;max-width:44ch;margin:18px 0 22px}
.hero__trust{list-style:none;display:flex;flex-wrap:wrap;gap:24px;margin:0;padding:20px 0 0;border-top:1px solid var(--line)}
.hero__trust li{font-size:.88rem;color:var(--gray)}
.hero__trust strong{display:block;font-family:"Saira Condensed",sans-serif;font-size:1.4rem;color:var(--blue);font-weight:700}

/* ferramenta */
.tool{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);
  padding:24px;position:relative;overflow:hidden}
.tool__stage{display:none;animation:fade .3s ease}
.tool__stage.is-active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.tool__q{font-family:"Saira Condensed",sans-serif;font-weight:700;font-size:1.5rem;margin:0 0 16px;text-transform:uppercase;letter-spacing:.01em}
.tool__paths{display:grid;gap:12px}
.path{display:flex;align-items:center;gap:14px;text-align:left;padding:18px;border:1.5px solid var(--line);
  border-radius:14px;background:var(--bg-2);cursor:pointer;transition:border-color .15s,background .15s,transform .12s;width:100%}
.path:hover{border-color:var(--blue);background:#fff;transform:translateY(-2px)}
.path__ico{font-size:1.7rem;line-height:1;flex:none;width:46px;height:46px;display:grid;place-items:center;
  background:var(--blue-50);border-radius:12px}
.path--fix .path__ico{background:#FFF0E6}
.path__body{flex:1;display:flex;flex-direction:column}
.path__t{font-family:"Saira Condensed",sans-serif;font-weight:600;font-size:1.25rem;line-height:1.05}
.path__s{font-size:.85rem;color:var(--gray)}
.path__go{font-size:1.3rem;color:var(--blue);flex:none}

.tool__back{background:none;border:none;color:var(--gray);cursor:pointer;font-family:inherit;font-size:.85rem;
  padding:0 0 12px;text-decoration:underline}
.tool__prog{height:6px;border-radius:999px;background:var(--bg-2);overflow:hidden;margin-bottom:20px}
.tool__prog span{display:block;height:100%;width:0;background:var(--blue);transition:width .35s ease}
.tool__restart{margin-top:12px;background:none;border:none;color:var(--gray);text-decoration:underline;
  cursor:pointer;font-size:.9rem;font-family:inherit;width:100%}

.step{display:none;animation:fade .3s ease}
.step.is-active{display:block}
.step__q{font-family:"Saira Condensed",sans-serif;font-weight:600;font-size:1.4rem;margin:0 0 16px;
  display:flex;align-items:center;gap:12px;line-height:1.05}
.step__n{font-family:"IBM Plex Mono",monospace;font-size:.75rem;color:#fff;background:var(--blue);padding:4px 8px;border-radius:6px;font-weight:600}
.step__opt{font-family:"IBM Plex Sans",sans-serif;font-size:.8rem;color:var(--gray);font-weight:400;text-transform:none}
.opts{display:grid;gap:10px}
.opt{text-align:left;padding:15px 18px;border:1px solid var(--line);border-radius:11px;background:var(--bg-2);
  font-family:inherit;font-size:1.02rem;font-weight:500;color:var(--ink);cursor:pointer;transition:border-color .15s,background .15s,transform .12s}
.opt:hover{border-color:var(--blue);background:#fff;transform:translateX(3px)}
.field{width:100%;padding:15px 18px;border:1px solid var(--line);border-radius:11px;font-family:inherit;font-size:1.05rem;background:var(--bg-2);color:var(--ink)}
.field:focus{outline:none;border-color:var(--blue);background:#fff}
.step__nav{display:flex;justify-content:space-between;margin-top:18px}

/* resultado */
.result__note{font-size:.88rem;color:var(--gray);text-align:center;margin:14px 0 16px}
.result__note b{color:var(--ink)}
.dyno--result{margin-bottom:14px}
.dyno__head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px}
.dyno__tag{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--blue)}
.dyno__unit{font-family:"IBM Plex Mono",monospace;font-size:.66rem;color:var(--gray)}
.dyno__svg{display:block;width:100%;height:auto}
.dyno__grid line{stroke:var(--line);stroke-width:1}
.dyno__line{fill:none;stroke-width:3.5;stroke-linecap:round}
.dyno__line--stock{stroke:#AEB4C2;stroke-dasharray:6 7}
.dyno__line--fcf{stroke:var(--blue);filter:drop-shadow(0 4px 10px rgba(54,78,162,.4))}
.dyno__line--fcf,.dyno__line--stock{stroke-dasharray:900;stroke-dashoffset:900}
.dyno__line--stock{stroke-dasharray:6 7}
.dyno__area{opacity:0;transition:opacity .8s ease .4s}
.dyno.is-in .dyno__line--stock{animation:draw 1.1s ease forwards}
.dyno.is-in .dyno__line--fcf{animation:draw 1.2s ease .3s forwards}
.dyno.is-in .dyno__area{opacity:1}
@keyframes draw{to{stroke-dashoffset:0}}
.figs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:4px}
.fig{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center}
.fig__v{display:block;font-family:"IBM Plex Mono",monospace;font-weight:600;font-size:1.5rem;color:var(--blue);line-height:1}
.fig__v i{font-style:normal;font-size:.8rem;color:var(--gray);margin-left:2px}
.fig__l{display:block;margin-top:6px;font-size:.78rem;color:var(--gray)}

/* diagnóstico (fluxo problema) */
.diag{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:6px}
.diag__tag{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--gray)}
.diag__tag--sol{color:var(--blue);display:block;margin-top:16px}
.diag__cause{font-family:"Saira Condensed",sans-serif;font-weight:600;font-size:1.25rem;line-height:1.1;margin:6px 0 0}
.diag__sol{margin:6px 0 0;color:var(--ink-soft)}

/* ============ SECTIONS ============ */
.section{padding:80px 0}
.section__head{max-width:680px;margin:0 auto 44px;text-align:center}
.section__head--left{text-align:left;margin-inline:0}
.section__title{font-size:clamp(2rem,4.2vw,3.1rem);text-transform:uppercase;letter-spacing:-.01em}
.section--blue{background:var(--blue);color:#fff}

/* serviços */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 22px;display:flex;flex-direction:column;gap:12px;transition:transform .18s,box-shadow .18s,border-color .18s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--blue-100)}
.card__kbd{align-self:flex-start;font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);background:var(--blue-50);padding:5px 10px;border-radius:6px}
.card__title{font-size:1.5rem;line-height:1.02}
.card__text{color:var(--gray);font-size:.98rem;margin:0;flex:1}
.card__link{margin-top:4px;text-decoration:none;font-weight:600;color:var(--blue);font-size:.98rem;transition:opacity .15s}
.card__link:hover{opacity:.7}

/* prova (faixa azul + vídeo apoio) */
.prova{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.prova__media{margin:0;position:relative}
.prova__video{width:100%;border-radius:16px;display:block;box-shadow:0 30px 60px -30px rgba(0,0,0,.6);aspect-ratio:16/9;object-fit:cover}
.prova__hint{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;
  color:#fff;background:rgba(0,0,0,.45);padding:6px 12px;border-radius:999px;transition:opacity .4s;pointer-events:none}

/* mapa */
.section--map{background:var(--bg-2)}
.map{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:center}
.map__copy .section__title{margin-bottom:22px}
.map__info{list-style:none;padding:0;margin:0 0 24px;display:grid;gap:14px}
.map__info li{color:var(--ink-soft);font-size:1rem}
.map__info b{display:block;font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--gray);margin-bottom:2px}
.map__frame{border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);line-height:0}
.map__frame iframe{width:100%;height:380px;border:0;display:block;filter:grayscale(.15)}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:26px 0}
.stat{border:1px solid rgba(255,255,255,.22);border-radius:var(--r);padding:20px;background:rgba(255,255,255,.06)}
.stat__num{display:block;font-family:"Saira Condensed",sans-serif;font-weight:700;font-size:1.7rem;color:#fff;text-transform:uppercase}
.stat__lbl{display:block;margin-top:8px;color:#C7D2F2;font-size:.9rem}
.quote{margin:0;border-left:3px solid #fff;padding:4px 0 4px 22px}
.quote p{font-family:"Saira Condensed",sans-serif;font-weight:500;font-size:1.5rem;line-height:1.15;margin:0;color:#fff}
.quote cite{display:block;margin-top:10px;color:#BFD0FF;font-style:normal;font-size:.92rem}

/* faq */
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start}
.faq__list{display:grid;gap:12px}
.faq__item{border:1px solid var(--line);border-radius:12px;background:#fff;padding:4px 20px;transition:border-color .15s}
.faq__item[open]{border-color:var(--blue)}
.faq__item summary{cursor:pointer;list-style:none;padding:16px 0;font-family:"Saira Condensed",sans-serif;font-weight:600;font-size:1.25rem;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";color:var(--blue);font-size:1.5rem;line-height:1}
.faq__item[open] summary::after{content:"–"}
.faq__item p{margin:0 0 18px;color:var(--gray)}

/* closer */
.closer{background:linear-gradient(150deg,var(--blue) 0%,var(--blue-700) 100%);color:#fff;text-align:center}
.closer__inner{max-width:640px;margin:0 auto}
.closer__title{font-size:clamp(2.2rem,5vw,3.6rem);text-transform:uppercase}
.closer__sub{color:#C7D2F2;margin:16px 0 30px;font-size:1.15rem}

/* footer */
.foot{background:var(--bg-2);color:var(--gray);padding:52px 0 26px;border-top:1px solid var(--line)}
.foot__inner{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;padding-bottom:26px;border-bottom:1px solid var(--line)}
.foot__logo{height:28px;width:auto;display:block;margin-bottom:14px}
.foot__brand p{margin:0;font-size:.92rem;line-height:1.6}
.foot__contact{display:flex;flex-direction:column;gap:8px}
.foot__contact a{text-decoration:none;color:var(--ink-soft);transition:color .15s}
.foot__contact a:hover{color:var(--blue)}
.foot__legal{padding-top:20px;font-size:.82rem;color:var(--gray)}

/* whatsapp: fab (desktop) + barra fixa (mobile) */
.fab{position:fixed;right:20px;bottom:20px;z-index:60;width:58px;height:58px;border-radius:50%;background:var(--wa);
  display:grid;place-items:center;box-shadow:0 12px 30px -8px rgba(37,211,102,.7);transition:transform .18s}
.fab:hover{transform:scale(1.08)}
.fab svg{width:30px;height:30px;fill:#04310f}
.wabar{display:none}

/* a11y */
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}

/* ============ DESKTOP ============ */
@media(min-width:961px){
  .hero{padding:70px 0 90px}
  .hero__inner{grid-template-columns:1.05fr .95fr;gap:50px}
  .tool{padding:30px}
}

/* ============ RESPONSIVE ============ */
@media(max-width:960px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .prova{grid-template-columns:1fr;gap:28px}
  .prova__media{order:-1}
  .map{grid-template-columns:1fr;gap:26px}
  .map__frame iframe{height:300px}
  .faq{grid-template-columns:1fr;gap:30px}
  .nav__links{display:none}
  .brand__tag{display:none}
}
@media(max-width:560px){
  body{font-size:16px}
  .section{padding:56px 0}
  .cards{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .hero__trust{gap:16px}
  .nav__cta span{display:none}
  .tool{padding:20px}
  .figs{grid-template-columns:1fr}
  .fig{display:flex;align-items:center;justify-content:space-between;text-align:left}
  .fig__l{margin-top:0}
  /* barra fixa de WhatsApp no mobile */
  .fab{display:none}
  .wabar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;align-items:center;justify-content:center;gap:10px;
    background:var(--wa);color:#04310f;text-decoration:none;padding:15px;font-family:"Saira Condensed",sans-serif;
    font-weight:700;font-size:1.15rem;box-shadow:0 -8px 24px -12px rgba(0,0,0,.3)}
  .wabar svg{width:24px;height:24px;fill:#04310f}
  body{padding-bottom:58px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .dyno__line--fcf,.dyno__line--stock{stroke-dashoffset:0}
  .dyno__area{opacity:1}
}