/* ============================================================
   FUELEBA ENERGEX — site styles
   Palette + type derived from the FUELEBA "Power Boost" banner
   ============================================================ */

:root{
  --navy-950:#060b1f;
  --navy-900:#0a1330;
  --navy-800:#0e1c48;
  --navy-700:#123069;
  --blue-500:#2ea8ff;
  --blue-400:#00d4ff;
  --blue-glow:rgba(46,168,255,.55);
  --red:#e8203a;
  --white:#eaf3ff;
  --steel:#93aad6;
  --steel-dim:#61729a;
  --line:rgba(120,165,235,.18);
  --card:rgba(18,34,78,.55);
  --card-solid:#0d1a40;

  --font-display:"Saira","Arial Narrow",sans-serif;
  --font-body:"Inter",system-ui,-apple-system,sans-serif;

  --wrap:1180px;
  --radius:14px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--white);
  background:var(--navy-950);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* page-wide ambient background: layered radial glows over deep navy */
body::before{
  content:"";
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(60% 50% at 82% 8%, rgba(46,168,255,.20), transparent 60%),
    radial-gradient(55% 45% at 12% 22%, rgba(232,32,58,.10), transparent 60%),
    radial-gradient(80% 60% at 50% 120%, rgba(0,120,255,.22), transparent 60%),
    linear-gradient(180deg,#070d24 0%, #060b1f 45%, #05091a 100%);
}
body::after{
  content:"";
  position:fixed;inset:0;z-index:-1;opacity:.5;
  background-image:linear-gradient(rgba(60,120,220,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(60,120,220,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(80% 70% at 50% 30%,#000 40%,transparent 100%);
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.section{padding:96px 0}
.section-sm{padding:64px 0}

/* ---------- type ---------- */
h1,h2,h3,h4,.display{font-family:var(--font-display);font-weight:800;letter-spacing:.01em;line-height:1.02;margin:0}
.eyebrow{
  font-family:var(--font-display);
  font-weight:700;font-size:.82rem;letter-spacing:.32em;
  text-transform:uppercase;color:var(--blue-400);
  margin:0 0 14px;
}
.h-sec{font-size:clamp(2rem,4.4vw,3.4rem);text-transform:uppercase}
.lead{color:var(--steel);font-size:1.08rem;max-width:62ch}
.muted{color:var(--steel-dim)}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* chrome wordmark treatment (echoes the banner) */
.chrome{
  background:linear-gradient(180deg,#ffffff 0%,#cfe4ff 42%,#4f8fe0 60%,#dcecff 78%,#ffffff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 2px 10px rgba(46,168,255,.35));
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-display);font-weight:700;letter-spacing:.04em;
  text-transform:uppercase;font-size:.95rem;
  padding:15px 30px;border-radius:11px;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease, box-shadow .25s ease, background .25s ease;
  will-change:transform;
}
.btn:focus-visible{outline:3px solid var(--blue-400);outline-offset:3px}
.btn-primary{
  color:#02132c;
  background:linear-gradient(120deg,#5fc0ff,#2ea8ff 55%,#0c86ff);
  box-shadow:0 8px 30px rgba(46,168,255,.35), inset 0 1px 0 rgba(255,255,255,.5);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(46,168,255,.5), inset 0 1px 0 rgba(255,255,255,.5)}
.btn-wa{color:#04210f;background:linear-gradient(120deg,#3fe07a,#22c55e 60%,#12a24a);box-shadow:0 8px 30px rgba(34,197,94,.32),inset 0 1px 0 rgba(255,255,255,.45)}
.btn-wa:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(34,197,94,.5),inset 0 1px 0 rgba(255,255,255,.45)}
.btn-ghost{color:var(--white);border-color:var(--line);background:rgba(20,40,90,.35)}
.btn-ghost:hover{border-color:var(--blue-500);background:rgba(30,60,130,.5);transform:translateY(-2px)}
.btn svg{width:20px;height:20px;flex:none}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(6,11,31,.72);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{max-width:var(--wrap);margin:0 auto;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:baseline;gap:10px;font-family:var(--font-display);font-weight:800;font-size:1.5rem;letter-spacing:.06em}
.brand small{font-family:var(--font-body);font-weight:600;font-size:.62rem;letter-spacing:.28em;color:var(--steel-dim);text-transform:uppercase;transform:translateY(-2px)}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{
  font-family:var(--font-display);font-weight:600;font-size:.95rem;letter-spacing:.03em;
  color:var(--steel);padding:9px 14px;border-radius:9px;transition:color .2s,background .2s;
}
.nav-links a:hover,.nav-links a.active{color:var(--white);background:rgba(46,168,255,.12)}
.nav-cta{margin-left:6px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:9px;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--white);margin:4px 0;transition:.25s}

@media (max-width:860px){
  .nav-toggle{display:block}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(8,15,38,.98);border-bottom:1px solid var(--line);
    padding:12px 16px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:.22s;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{padding:13px 12px}
  .nav-cta{margin:6px 0 0}
}

/* ---------- hero ---------- */
.hero{position:relative;padding:74px 0 40px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;letter-spacing:.2em;text-transform:uppercase;font-size:.8rem;color:var(--blue-400);border:1px solid var(--line);border-radius:100px;padding:7px 16px;background:rgba(46,168,255,.07)}
.hero h1{font-size:clamp(3.2rem,8vw,6rem);text-transform:uppercase;margin:22px 0 6px}
.hero-sub{font-family:var(--font-display);font-weight:600;font-size:clamp(1.2rem,2.4vw,1.7rem);color:var(--white);letter-spacing:.04em;margin-bottom:18px}
.hero-sub .accent{color:var(--blue-400)}
.hero p.lead{margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-badges{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.hero-badge b{font-family:var(--font-display);font-size:1.5rem;display:block;color:var(--white)}
.hero-badge span{font-size:.8rem;color:var(--steel-dim);letter-spacing:.04em}

.hero-visual{position:relative;display:flex;justify-content:center}
.hero-visual img{
  border-radius:18px;border:1px solid var(--line);
  box-shadow:0 30px 80px rgba(0,0,0,.55), 0 0 60px rgba(46,168,255,.15);
  max-height:560px;object-fit:cover;
}
.hero-visual::before{
  content:"";position:absolute;inset:-8% -6%;z-index:-1;
  background:radial-gradient(circle at 50% 45%,var(--blue-glow),transparent 62%);
  filter:blur(30px);opacity:.7;
}
.tagline-strip{
  margin-top:30px;text-align:center;
  font-family:var(--font-display);font-style:italic;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;font-size:clamp(.85rem,2vw,1.15rem);
  color:var(--blue-400);
}
.tagline-strip .dot{color:var(--red);margin:0 .5em}

@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-visual{order:-1}
  .hero-visual img{max-height:420px}
}

/* ---------- benefit chips ---------- */
.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:44px}
.benefit{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;display:flex;gap:16px;align-items:flex-start;
  transition:border-color .25s, transform .25s, background .25s;
}
.benefit:hover{border-color:var(--blue-500);background:rgba(24,48,110,.6);transform:translateY(-3px)}
.benefit .ic{flex:none;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(46,168,255,.22),rgba(46,168,255,.05));border:1px solid var(--line)}
.benefit .ic svg{width:24px;height:24px;color:var(--blue-400)}
.benefit h3{font-size:1.12rem;margin-bottom:5px;text-transform:none;letter-spacing:0}
.benefit p{margin:0;color:var(--steel);font-size:.94rem}
@media (max-width:820px){.benefit-grid{grid-template-columns:1fr}}

/* ---------- calculator (the hero interactive) ---------- */
.calc-shell{
  position:relative;border-radius:22px;overflow:hidden;
  border:1px solid rgba(46,168,255,.3);
  background:linear-gradient(160deg,rgba(14,28,72,.9),rgba(8,16,40,.92));
  box-shadow:0 40px 90px rgba(0,0,0,.5), inset 0 1px 0 rgba(120,180,255,.15);
}
.calc-shell::before{content:"";position:absolute;inset:0;background:radial-gradient(70% 90% at 85% 0%,rgba(46,168,255,.22),transparent 60%);pointer-events:none}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;position:relative}
.calc-input{padding:44px}
.calc-input h2{font-size:clamp(1.7rem,3.5vw,2.5rem);text-transform:uppercase;margin-bottom:8px}
.calc-input p{color:var(--steel);margin:0 0 30px}
.calc-readout{
  padding:44px;background:rgba(4,9,24,.55);border-left:1px solid var(--line);
  display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;
}
.slider-val{font-family:var(--font-display);font-weight:800;font-size:3.2rem;color:var(--white);line-height:1}
.slider-val span{font-size:1.3rem;color:var(--blue-400)}
.slider-label{color:var(--steel-dim);letter-spacing:.16em;text-transform:uppercase;font-size:.76rem;margin-top:4px}
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:8px;border-radius:100px;margin:26px 0 8px;
  background:linear-gradient(90deg,var(--blue-400) 0%,var(--blue-500) var(--pct,40%),rgba(80,120,190,.25) var(--pct,40%));
  cursor:pointer;
}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:26px;height:26px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fff,#2ea8ff);border:2px solid #fff;box-shadow:0 0 0 6px rgba(46,168,255,.2),0 4px 14px rgba(0,0,0,.5);cursor:pointer}
input[type=range]::-moz-range-thumb{width:24px;height:24px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fff,#2ea8ff);border:2px solid #fff;box-shadow:0 0 0 6px rgba(46,168,255,.2);cursor:pointer}
input[type=range]:focus-visible{outline:3px solid var(--blue-400);outline-offset:6px}
.range-ends{display:flex;justify-content:space-between;color:var(--steel-dim);font-size:.8rem;margin-bottom:26px}
.preset-row{display:flex;gap:10px;flex-wrap:wrap}
.preset{font-family:var(--font-display);font-weight:600;letter-spacing:.03em;padding:9px 15px;border-radius:9px;border:1px solid var(--line);background:rgba(20,40,90,.4);color:var(--steel);cursor:pointer;transition:.2s}
.preset:hover{color:#fff;border-color:var(--blue-500)}
.preset.active{color:#02132c;background:linear-gradient(120deg,#5fc0ff,#2ea8ff);border-color:transparent}

.dose-num{font-family:var(--font-display);font-weight:800;font-size:5rem;line-height:.9;color:var(--white)}
.dose-num.pulse{animation:pop .4s ease}
@keyframes pop{0%{transform:scale(.8);opacity:.4}60%{transform:scale(1.08)}100%{transform:scale(1)}}
.dose-word{font-family:var(--font-display);font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:var(--blue-400);margin-top:2px}
.dose-bottles{display:flex;gap:6px;justify-content:center;margin:20px 0 8px;min-height:52px}
.dose-bottles svg{width:20px;height:48px;color:var(--blue-400);filter:drop-shadow(0 0 6px rgba(46,168,255,.5));animation:rise .35s ease backwards}
.dose-meta{color:var(--steel);font-size:.92rem;margin:6px 0 22px}
.dose-meta b{color:var(--white)}
@keyframes rise{from{transform:translateY(10px);opacity:0}to{transform:translateY(0);opacity:1}}
@media (prefers-reduced-motion:reduce){.dose-bottles svg,.dose-num.pulse{animation:none}}
@media (max-width:820px){
  .calc-grid{grid-template-columns:1fr}
  .calc-readout{border-left:none;border-top:1px solid var(--line)}
  .calc-input,.calc-readout{padding:30px}
}

/* ---------- components ---------- */
.comp-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:44px}
.comp{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;transition:.25s}
.comp:hover{border-color:var(--blue-500);transform:translateY(-4px);background:rgba(24,48,110,.55)}
.comp .ic{width:44px;height:44px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(46,168,255,.2),transparent);border:1px solid var(--line);margin-bottom:16px}
.comp .ic svg{width:24px;height:24px;color:var(--blue-400)}
.comp h3{font-size:1.02rem;text-transform:none;letter-spacing:0;margin-bottom:6px}
.comp .tag{font-family:var(--font-display);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--steel-dim);display:block;margin-bottom:10px}
.comp p{margin:0;color:var(--steel);font-size:.88rem}
@media (max-width:1000px){.comp-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.comp-grid{grid-template-columns:1fr}}

/* ---------- features strip ---------- */
.feat-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:44px}
.feat{text-align:center;padding:26px 16px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(10,20,52,.5);transition:.25s}
.feat:hover{border-color:var(--blue-500);background:rgba(20,44,100,.55)}
.feat .ic{width:54px;height:54px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle at 40% 30%,rgba(46,168,255,.35),rgba(46,168,255,.06));border:1px solid var(--line)}
.feat .ic svg{width:26px;height:26px;color:var(--blue-400)}
.feat h4{font-size:1rem;text-transform:none;letter-spacing:0;margin-bottom:4px}
.feat p{margin:0;color:var(--steel);font-size:.84rem}
@media (max-width:900px){.feat-strip{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.feat-strip{grid-template-columns:1fr}}

/* ---------- split / product ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split.rev .split-media{order:2}
.split-media img{border-radius:18px;border:1px solid var(--line);box-shadow:0 26px 70px rgba(0,0,0,.5)}
.split-media{position:relative}
.split-media::before{content:"";position:absolute;inset:-6%;z-index:-1;background:radial-gradient(circle at 50% 50%,rgba(46,168,255,.28),transparent 60%);filter:blur(24px)}
.spec-list{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:0}
.spec-list li{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-bottom:1px solid var(--line)}
.spec-list li span:first-child{color:var(--steel-dim)}
.spec-list li span:last-child{color:var(--white);font-weight:600;text-align:right}
.check-list{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:14px}
.check-list li{display:flex;gap:13px;align-items:flex-start;color:var(--steel)}
.check-list li b{color:var(--white)}
.check-list svg{flex:none;width:22px;height:22px;color:var(--blue-400);margin-top:2px}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:34px}.split.rev .split-media{order:0}}

/* ---------- how-to steps (real sequence) ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px;counter-reset:s}
.step{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px 26px}
.step::before{counter-increment:s;content:counter(s,decimal-leading-zero);position:absolute;top:20px;right:24px;font-family:var(--font-display);font-weight:800;font-size:2.4rem;color:rgba(46,168,255,.22)}
.step h3{font-size:1.15rem;text-transform:none;letter-spacing:0;margin-bottom:8px;padding-right:40px}
.step p{margin:0;color:var(--steel);font-size:.94rem}
@media (max-width:820px){.steps{grid-template-columns:1fr}}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;border-radius:22px;overflow:hidden;padding:56px 44px;text-align:center;
  background:linear-gradient(120deg,rgba(18,48,105,.9),rgba(12,24,60,.9));
  border:1px solid rgba(46,168,255,.3);
}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 100% at 50% 0%,rgba(46,168,255,.28),transparent 60%);pointer-events:none}
.cta-band h2{font-size:clamp(1.8rem,4vw,3rem);text-transform:uppercase;margin-bottom:12px;position:relative}
.cta-band p{color:var(--steel);max-width:56ch;margin:0 auto 28px;position:relative}
.cta-band .hero-cta{justify-content:center;position:relative}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.contact-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;gap:16px;align-items:flex-start;margin-bottom:16px;transition:.25s}
.contact-card:hover{border-color:var(--blue-500)}
.contact-card .ic{flex:none;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(46,168,255,.2),transparent);border:1px solid var(--line)}
.contact-card .ic svg{width:24px;height:24px;color:var(--blue-400)}
.contact-card h3{font-size:1.05rem;text-transform:none;letter-spacing:0;margin-bottom:4px}
.contact-card p,.contact-card a{margin:2px 0;color:var(--steel)}
.contact-card a:hover{color:var(--blue-400)}
.map-embed{border:0;width:100%;height:100%;min-height:420px;border-radius:var(--radius);filter:grayscale(.3) contrast(1.05)}
.map-wrap{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;min-height:420px}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}

/* ---------- floating whatsapp ---------- */
.wa-float{
  position:fixed;right:20px;bottom:20px;z-index:60;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 20px 14px 16px;border-radius:100px;
  font-family:var(--font-display);font-weight:700;letter-spacing:.03em;color:#04210f;
  background:linear-gradient(120deg,#3fe07a,#22c55e 60%,#12a24a);
  box-shadow:0 10px 34px rgba(34,197,94,.45);
  transition:transform .2s, box-shadow .25s;
}
.wa-float:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 16px 44px rgba(34,197,94,.6)}
.wa-float svg{width:26px;height:26px}
.wa-float .lbl{white-space:nowrap}
@media (max-width:520px){.wa-float .lbl{display:none}.wa-float{padding:15px}}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);padding:54px 0 34px;margin-top:20px;background:rgba(4,9,22,.6)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.footer h4{font-size:.82rem;letter-spacing:.2em;text-transform:uppercase;color:var(--blue-400);margin-bottom:16px}
.footer a{display:block;color:var(--steel);padding:5px 0;font-size:.94rem}
.footer a:hover{color:var(--white)}
.footer .brand{margin-bottom:14px}
.footer p{color:var(--steel-dim);font-size:.9rem;max-width:38ch}
.footer-base{margin-top:40px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--steel-dim);font-size:.85rem}
@media (max-width:820px){.footer-grid{grid-template-columns:1fr;gap:28px}}

/* placeholder marker for content you still need to confirm */
.ph{
  border-bottom:1px dashed rgba(232,32,58,.6);
  color:#ffd4da;cursor:help;
}

/* scroll reveal (used once, on the calculator) */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease, transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

.section-head{max-width:70ch}
.section-head.center{margin:0 auto}