/* ==========================================================
   LIM ENERGY — design tokens
   (predominância branco + azul, amarelo como acento pontual)
   ========================================================== */
:root{
  --blue-950:#0A2647;
  --blue-800:#123B66;
  --blue-700:#1B4C82;
  --blue-500:#2E6BAE;
  --blue-100:#E4EDF7;
  --sky-50:#F5F9FD;
  --amber-400:#FFC94A;
  --amber-500:#F5A623;
  --ink-900:#0B1626;
  --ink-600:#57667A;
  --white:#FFFFFF;

  --font-display:'Sora', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;

  --radius-md:14px;
  --radius-lg:22px;
  --shadow-soft:0 20px 50px -25px rgba(10,38,71,.28);
  --wrap:1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink-900);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3{font-family:var(--font-display);margin:0 0 .5em;line-height:1.12;color:var(--blue-950);}
p{margin:0 0 1em;color:var(--ink-600);line-height:1.65;}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* ---------- scroll reveal (JS adds .is-visible) ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease, transform .7s ease;}
.reveal.is-visible{opacity:1;transform:none;}
.reveal-delay-1.is-visible{transition-delay:.08s;}
.reveal-delay-2.is-visible{transition-delay:.16s;}
.reveal-delay-3.is-visible{transition-delay:.24s;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-family:var(--font-body);
  font-weight:600;font-size:.95rem;border:2px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:focus-visible{outline:3px solid var(--amber-400);outline-offset:2px;}
.btn--primary{background:var(--blue-950);color:var(--white);box-shadow:0 14px 30px -14px rgba(10,38,71,.55);}
.btn--primary:hover{transform:translateY(-2px);background:var(--blue-800);box-shadow:0 18px 34px -14px rgba(10,38,71,.6);}
.btn--outline{background:transparent;border-color:var(--blue-950);color:var(--blue-950);}
.btn--outline:hover{background:var(--blue-950);color:var(--white);}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.55);color:var(--white);}
.btn--ghost:hover{background:rgba(255,255,255,.12);}
.btn--sm{padding:10px 20px;font-size:.85rem;}
.btn--full{width:100%;}

.eyebrow{
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--blue-500);font-weight:600;margin-bottom:.9em;display:flex;align-items:center;gap:8px;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--amber-500);display:inline-block;border-radius:2px;}
.eyebrow--light{color:var(--amber-400);}
.eyebrow--light::before{background:var(--amber-400);}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--blue-950);
  border-bottom:2px solid var(--amber-500);padding-bottom:2px;
}
.link-arrow::after{content:"→";transition:transform .18s ease;}
.link-arrow:hover::after{transform:translateX(4px);}

/* ==========================================================
   NAVBAR — branca e fixa
   ========================================================== */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:50;
  padding:20px 0;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:padding .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.navbar.is-scrolled{padding:12px 0;box-shadow:0 10px 30px -20px rgba(10,38,71,.35);border-color:var(--blue-100);}
.navbar__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}

.brand{display:flex;align-items:center;gap:10px;}
.brand__logo{height:40px;width:auto;display:block;}
.brand__logo--footer{height:64px;}
.brand--footer{display:inline-flex;}

.nav{display:flex;gap:32px;}
.nav a{font-weight:600;font-size:.92rem;color:var(--ink-600);transition:color .18s ease;position:relative;}
.nav a:hover{color:var(--blue-950);}
.nav a.is-active{color:var(--blue-950);}
.nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--amber-500);border-radius:2px;
}

.nav__cta{margin-left:auto;}
.nav__toggle{display:none;background:none;border:0;cursor:pointer;padding:6px;width:38px;height:34px;flex-direction:column;justify-content:center;gap:6px;}
.nav__toggle span{display:block;height:2px;background:var(--blue-950);border-radius:2px;}

/* ==========================================================
   HERO — fundo claro, acento azul
   ========================================================== */
.hero{
  position:relative;overflow:hidden;
  background:var(--white);
  padding:160px 0 110px;
  color:var(--ink-900);
}
.hero__swoosh{position:absolute;inset:0;z-index:0;opacity:1;}
.hero__swoosh svg{width:100%;height:100%;}

.hero__inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.hero__title{font-size:clamp(2.3rem,4.4vw,3.4rem);color:var(--blue-950);letter-spacing:-.01em;}
.hero__lead{color:var(--ink-600);max-width:46ch;font-size:1.02rem;}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap;margin:28px 0 40px;}

.hero__stats{display:flex;gap:38px;margin:0;padding-top:24px;border-top:1px solid var(--blue-100);}
.hero__stats dt{font-family:var(--font-mono);font-weight:600;font-size:1.25rem;color:var(--blue-950);}
.hero__stats dd{margin:2px 0 0;font-size:.8rem;color:var(--ink-600);}

.hero__art{position:relative;}
.panel-illustration{width:100%;height:auto;filter:drop-shadow(0 30px 40px rgba(10,38,71,.18));}

.hero__scroll{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:1;}
.hero__scroll span{display:block;width:22px;height:36px;border:2px solid var(--blue-100);border-radius:999px;position:relative;}
.hero__scroll span::before{
  content:"";position:absolute;top:6px;left:50%;width:4px;height:8px;background:var(--amber-500);
  border-radius:2px;transform:translateX(-50%);animation:scrollDot 1.8s ease-in-out infinite;
}
@keyframes scrollDot{0%,100%{opacity:1;top:6px;}50%{opacity:.3;top:16px;}}

/* ==========================================================
   STATS STRIP — clara, números em azul
   ========================================================== */
.stats-strip{background:var(--blue-950);}
.stats-strip__grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  padding:30px 0;
}
.stats-strip__grid > div{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  border-left:1px solid rgba(255,255,255,.14);
}
.stats-strip__grid > div:first-child{border-left:none;}
.stats-strip__num{font-family:var(--font-mono);font-weight:600;font-size:1.5rem;color:var(--white);}
.stats-strip__label{font-size:.78rem;color:rgba(255,255,255,.6);margin-top:4px;}

/* ==========================================================
   ABOUT / QUEM SOMOS
   ========================================================== */
.about{padding:110px 0;background:var(--white);}
.about__grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:center;}
.about__media{position:relative;}
.about__badge{
  position:absolute;bottom:-24px;right:-24px;background:var(--blue-950);color:var(--white);
  padding:20px 24px;border-radius:var(--radius-md);box-shadow:var(--shadow-soft);
  display:flex;flex-direction:column;min-width:160px;
}
.about__badge strong{font-family:var(--font-display);color:var(--white);font-size:1.4rem;}
.about__badge span{font-size:.8rem;color:rgba(255,255,255,.7);}

.about__copy h2{font-size:clamp(1.7rem,2.6vw,2.3rem);max-width:16ch;}
.checklist{margin:22px 0 26px;display:flex;flex-direction:column;gap:12px;}
.checklist li{position:relative;padding-left:30px;color:var(--ink-900);font-weight:500;}
.checklist li::before{
  content:"";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;
  background:var(--blue-800);
}
.checklist li::after{
  content:"";position:absolute;left:6px;top:7px;width:9px;height:5px;
  border-left:2px solid var(--white);border-bottom:2px solid var(--white);transform:rotate(-45deg);
}

/* ---------- photo-card (placeholder-friendly) ---------- */
.photo-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-soft);
  background:var(--blue-100);
  transition:transform .25s ease, box-shadow .25s ease;
}
.photo-card--tall{aspect-ratio:4/5;}
.photo-card__ph{
  --ph-a:#1c3d67;--ph-b:#0a2246;
  height:100%;width:100%;
  background:linear-gradient(150deg,var(--ph-a),var(--ph-b));
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.55);
  position:relative;
}
.photo-card__ph::after{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(0deg, transparent 0 46px, rgba(255,255,255,.05) 46px 48px),
    repeating-linear-gradient(90deg, transparent 0 46px, rgba(255,255,255,.05) 46px 48px);
}
.photo-card__caption{
  position:absolute;left:16px;right:16px;bottom:14px;color:var(--white);
  font-size:.82rem;font-weight:600;text-shadow:0 2px 8px rgba(0,0,0,.4);
}
.about__media .photo-card--tall{max-width:420px;}

/* ==========================================================
   ARC DIVIDER (signature element) — azul, sol pequeno
   ========================================================== */
.arc-divider{width:100%;line-height:0;background:var(--sky-50);padding-top:10px;}
.arc-divider svg{width:100%;height:70px;display:block;}
.arc-divider__sun{animation:arcSun 6s ease-in-out infinite;}
@keyframes arcSun{
  0%{cx:0;cy:90;}
  50%{cx:600;cy:60;}
  100%{cx:1200;cy:40;}
}

/* ==========================================================
   SERVICES
   ========================================================== */
.services{padding:0 0 110px;background:var(--sky-50);}
.section-head{max-width:640px;margin:0 auto 56px;text-align:center;}
.section-head h2{font-size:clamp(1.6rem,2.4vw,2.1rem);}
.section-head--split{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;text-align:left;max-width:none;margin-bottom:44px;}
.section-head__note{max-width:34ch;font-size:.86rem;color:var(--ink-600);margin:0;}

.services__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.service-card{
  background:var(--white);border-radius:var(--radius-lg);padding:34px 28px;
  box-shadow:var(--shadow-soft);transition:transform .2s ease, box-shadow .2s ease;
}
.service-card:hover{transform:translateY(-6px);}
.service-card__icon{
  width:52px;height:52px;border-radius:14px;background:var(--blue-950);color:var(--amber-400);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.service-card h3{font-size:1.15rem;}
.service-card p{font-size:.92rem;margin-bottom:0;}

/* ==========================================================
   PROJECTS / GALLERY
   ========================================================== */
.projects{padding:0 0 120px;background:var(--sky-50);}
.projects__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.projects .photo-card__ph{aspect-ratio:4/3;}
.photo-card__ph--photo{background:var(--blue-100);}
.photo-card__ph--photo::after{display:none;}
.photo-card__ph--photo img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .4s ease;
}
.photo-card:hover .photo-card__ph--photo img{transform:scale(1.05);}
.photo-card__body{padding:18px 20px 22px;}
.photo-card__tag{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.04em;color:var(--blue-500);
  font-weight:600;display:block;margin-bottom:6px;
}
.photo-card__body strong{display:block;font-family:var(--font-display);font-size:1.02rem;color:var(--blue-950);}
.photo-card__body span{font-size:.85rem;color:var(--ink-600);}
.projects .photo-card:hover{transform:translateY(-6px);box-shadow:0 26px 50px -22px rgba(10,38,71,.35);}

/* ==========================================================
   CONTACT
   ========================================================== */
.contact{background:var(--blue-950);color:var(--white);padding:110px 0;}
.contact__grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:start;}
.contact__lead{color:rgba(255,255,255,.75);max-width:42ch;}
.contact h2{color:var(--white);font-size:clamp(1.7rem,2.6vw,2.2rem);}

.contact__list{display:flex;flex-direction:column;gap:16px;margin:28px 0 30px;}
.contact__list li{display:flex;align-items:center;gap:12px;color:rgba(255,255,255,.85);font-weight:500;}
.contact__list svg{color:var(--amber-400);flex-shrink:0;}
.contact__list a{transition:color .18s ease;}
.contact__list a:hover{color:var(--amber-400);}

.contact__whatsapp{margin-bottom:24px;background:#25D366;box-shadow:0 14px 30px -14px rgba(37,211,102,.55);}
.contact__whatsapp:hover{background:#20BD5A;}

.socials{display:flex;gap:12px;}
.socials a{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.25);
  display:flex;align-items:center;justify-content:center;transition:background .18s ease, border-color .18s ease;
}
.socials a:hover{background:var(--blue-700);border-color:var(--blue-700);}

.contact__form{
  background:var(--white);color:var(--ink-900);border-radius:var(--radius-lg);
  padding:38px;box-shadow:var(--shadow-soft);
}
.field{margin-bottom:18px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
label{display:block;font-size:.82rem;font-weight:600;margin-bottom:7px;color:var(--blue-950);}
input,select,textarea{
  width:100%;padding:13px 14px;border-radius:10px;border:1.5px solid var(--blue-100);
  font-family:var(--font-body);font-size:.95rem;color:var(--ink-900);background:var(--sky-50);
  transition:border-color .18s ease, box-shadow .18s ease;
}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(46,107,174,.16);
}
textarea{resize:vertical;}
.form__status{min-height:1.2em;margin:14px 0 0;font-size:.88rem;font-weight:600;color:var(--blue-700);text-align:center;}
.form__status.is-error{color:#C0392B;}

/* ==========================================================
   FOOTER
   ========================================================== */
.footer{background:var(--blue-950);color:rgba(255,255,255,.75);padding:70px 0 0;}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer__brand p{color:rgba(255,255,255,.6);margin-top:14px;font-size:.9rem;}
.footer__col h4{font-family:var(--font-body);color:var(--white);font-size:.85rem;letter-spacing:.04em;text-transform:uppercase;margin:0 0 16px;}
.footer__col{display:flex;flex-direction:column;gap:10px;font-size:.9rem;}
.footer__col a:hover{color:var(--amber-400);}

.footer__newsletter{display:flex;border:1.5px solid rgba(255,255,255,.2);border-radius:999px;overflow:hidden;}
.footer__newsletter input{
  background:transparent;border:none;color:var(--white);padding:10px 14px;font-size:.85rem;flex:1;
  border-radius:0;
}
.footer__newsletter input::placeholder{color:rgba(255,255,255,.5);}
.footer__newsletter button{
  background:var(--blue-700);border:none;color:var(--white);width:42px;font-size:1rem;cursor:pointer;
  transition:background .18s ease;
}
.footer__newsletter button:hover{background:var(--blue-500);}

.footer__bottom{
  display:flex;justify-content:space-between;padding:22px 0;font-size:.8rem;color:rgba(255,255,255,.5);
  flex-wrap:wrap;gap:10px;
}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:40;width:46px;height:46px;border-radius:50%;
  background:var(--blue-950);color:var(--white);border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-soft);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s ease, background .18s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--blue-700);}

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width:1024px){
  .hero__inner{grid-template-columns:1fr;}
  .hero__art{max-width:360px;margin:0 auto;}
  .about__grid{grid-template-columns:1fr;}
  .about__media .photo-card--tall{max-width:340px;margin:0 auto 50px;}
  .contact__grid{grid-template-columns:1fr;}
  .footer__grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:860px){
  .nav{position:fixed;top:0;right:0;height:100vh;width:min(78vw,320px);
    background:var(--white);flex-direction:column;padding:110px 32px 32px;gap:26px;
    transform:translateX(100%);transition:transform .3s ease;z-index:40;box-shadow:-10px 0 40px -20px rgba(10,38,71,.3);}
  .nav.is-open{transform:translateX(0);}
  .nav__toggle{display:flex;}
  .nav__cta{display:none;}
  .services__grid{grid-template-columns:1fr;}
  .projects__grid{grid-template-columns:1fr 1fr;}
  .stats-strip__grid{grid-template-columns:1fr 1fr;row-gap:20px;}
  .stats-strip__grid > div:nth-child(3){border-left:none;}
  .section-head--split{flex-direction:column;align-items:flex-start;}
}

@media (max-width:560px){
  .hero{padding:130px 0 90px;}
  .field-row{grid-template-columns:1fr;}
  .projects__grid{grid-template-columns:1fr;}
  .footer__grid{grid-template-columns:1fr;}
  .contact__form{padding:26px;}
  .about__badge{position:static;margin-top:20px;width:fit-content;}
  .to-top{right:16px;bottom:16px;width:42px;height:42px;}
}