/* WattWise — global energy site. Electric theme on deep navy. */
:root{
  --bg:#f5f8fc; --paper:#ffffff;
  --ink:#0b1733; --text:#33415c; --muted:#6b7a93; --line:#e3e9f2;
  --navy:#07142b; --navy2:#0c2546;
  --volt:#22d3ee;     /* electric cyan = signature accent */
  --volt-deep:#0891b2;
  --amber:#f6b313; --amber2:#f97316;
  --green:#10b981; --danger:#ef4444;
  --shadow:0 22px 60px rgba(8,18,40,.12);
  --shadow-soft:0 10px 30px rgba(8,18,40,.08);
  --max:1180px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;overflow-x:hidden;scroll-behavior:smooth}
body{font-family:Inter,system-ui,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
p{color:var(--text);margin:0 0 1rem}
h1,h2,h3{font-family:Sora,Inter,sans-serif;margin:0;color:var(--navy);line-height:1.06;letter-spacing:-.03em}
h1{font-size:clamp(2.1rem,5.6vw,4.4rem);font-weight:800}
h2{font-size:clamp(1.6rem,3.6vw,2.7rem);font-weight:700}
h3{font-size:1.2rem;font-weight:700}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:10px;background:#fff;padding:10px;border-radius:10px;z-index:999}
.skip:focus{left:10px}

/* top bar + lang banner */
.topbar{background:#020617;color:#cbd5e1;font-size:.82rem}
.topbar .container{min-height:38px;display:flex;gap:14px;align-items:center;justify-content:space-between}
.topbar b{color:var(--volt)}
.lang-banner{display:none;background:linear-gradient(90deg,var(--volt-deep),var(--navy2));color:#fff}
.lang-banner.show{display:block}
.lang-banner .container{min-height:46px;display:flex;gap:12px;align-items:center;justify-content:center;flex-wrap:wrap;padding:8px 20px;font-size:.9rem;font-weight:600}
.lang-banner a{background:#fff;color:var(--navy);padding:6px 14px;border-radius:999px;font-weight:800;font-size:.85rem}
.lang-banner button{background:transparent;border:1px solid rgba(255,255,255,.5);color:#fff;padding:5px 12px;border-radius:999px;cursor:pointer;font-weight:700}

.header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(148,163,184,.26)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:13px 0}
.logo{display:flex;align-items:center;gap:10px;min-width:0;font-family:Sora;font-weight:800;font-size:1.3rem;color:var(--navy);letter-spacing:-.03em}
.logo .bolt{width:auto;height:38px;flex:none}
.menu{display:flex;gap:2px;align-items:center;margin:0;padding:0;list-style:none}
.menu a{display:block;padding:9px 12px;border-radius:999px;font-weight:700;font-size:.9rem;color:#33415c}
.menu a:hover,.menu a.active{background:#e6faff;color:var(--volt-deep)}
.nav-cta{display:flex;align-items:center;gap:8px}
.lang-switch{position:relative}
.lang-switch>button{display:flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;font-weight:800;font-size:.85rem;cursor:pointer;color:#33415c}
.lang-menu{position:absolute;right:0;top:calc(100% + 6px);background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-soft);padding:6px;display:none;min-width:150px;z-index:90}
.lang-menu.open{display:block}
.lang-menu a{display:block;padding:9px 12px;border-radius:10px;font-weight:700;font-size:.88rem;color:#33415c}
.lang-menu a:hover{background:#f1f5f9}
.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:9px;cursor:pointer}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 20px;border-radius:999px;border:0;font-family:Sora,Inter,sans-serif;font-weight:700;cursor:pointer;transition:.18s ease;text-align:center}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--volt),var(--volt-deep));color:#04222b;box-shadow:0 16px 34px rgba(34,211,238,.32)}
.btn-amber{background:linear-gradient(135deg,var(--amber),var(--amber2));color:#2b1600;box-shadow:0 14px 30px rgba(249,115,22,.25)}
.btn-dark{background:var(--navy);color:#fff}
.btn-light{background:#fff;color:var(--navy);border:1px solid rgba(148,163,184,.36)}
.btn-block{width:100%}

.trending{background:#fff;border-bottom:1px solid var(--line)}
.trending .container{display:flex;align-items:center;gap:12px;overflow:auto;scrollbar-width:none;padding:10px 20px}
.trending .container::-webkit-scrollbar{display:none}
.trend-label{flex:none;padding:5px 9px;border-radius:999px;background:var(--danger);color:#fff;text-transform:uppercase;letter-spacing:.08em;font-size:.7rem;font-weight:800}
.trending a{flex:none;border:1px solid var(--line);border-radius:999px;padding:7px 12px;background:#f8fafc;color:#33415c;font-size:.86rem;font-weight:700}
.trending a:hover{border-color:var(--volt);color:var(--volt-deep)}

/* hero with voltage signature */
.hero{position:relative;padding:56px 0 36px;overflow:hidden;background:radial-gradient(circle at 12% 8%,rgba(34,211,238,.14),transparent 34%),linear-gradient(180deg,#fff,var(--bg))}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(320px,.96fr);gap:30px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;padding:7px 13px;border-radius:999px;border:1px solid #a5f3fc;background:#ecfeff;color:var(--volt-deep);font-size:.76rem;text-transform:uppercase;letter-spacing:.1em;font-weight:800}
.hero p.lead{font-size:clamp(1rem,1.9vw,1.2rem);max-width:660px;color:#475569;margin:18px 0 24px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px;max-width:640px}
.stat{padding:15px;border-radius:18px;background:#fff;border:1px solid rgba(148,163,184,.22);box-shadow:var(--shadow-soft)}
.stat b{display:block;font-family:Sora;font-size:1.5rem;line-height:1;color:var(--navy)}
.stat span{font-size:.8rem;color:var(--muted);font-weight:600}
.hero-visual{position:relative;border-radius:28px;overflow:hidden;min-height:400px;background:linear-gradient(160deg,var(--navy),#0c2546);box-shadow:var(--shadow);display:grid;place-items:center;padding:26px}
.voltline{position:absolute;inset:0;width:100%;height:100%;opacity:.5}
.voltline path{fill:none;stroke:var(--volt);stroke-width:2;stroke-dasharray:1400;stroke-dashoffset:1400;animation:dash 4.5s ease-in-out infinite}
@keyframes dash{0%{stroke-dashoffset:1400}55%{stroke-dashoffset:0}100%{stroke-dashoffset:-1400}}
.gauge{position:relative;text-align:center;color:#fff;z-index:2}
.gauge .big{font-family:Sora;font-size:3.4rem;font-weight:800;letter-spacing:-.05em;line-height:1}
.gauge .big span{color:var(--volt)}
.gauge .lbl{color:#9fb3cc;font-weight:600;margin-top:6px}
.gauge .ring{width:170px;height:170px;margin:0 auto 12px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--volt) 0 70%,rgba(255,255,255,.1) 70% 100%);position:relative}
.gauge .ring::after{content:"";position:absolute;inset:14px;border-radius:50%;background:var(--navy)}
.gauge .ring b{position:relative;z-index:2;font-family:Sora;font-size:1.7rem;color:#fff}

.section{padding:56px 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:24px}
.section-head p{max-width:640px;color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.card{background:#fff;border:1px solid rgba(148,163,184,.26);border-radius:22px;box-shadow:var(--shadow-soft);overflow:hidden;transition:.2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card-ico{height:120px;display:grid;place-items:center;background:linear-gradient(135deg,#ecfeff,#eef6ff);font-size:3rem}
.card-body{padding:20px}
.meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;font-weight:800}
.tag{background:#ecfeff;color:var(--volt-deep);padding:4px 8px;border-radius:999px}
.card p{font-size:.93rem;margin-bottom:14px}
.read{color:var(--volt-deep);font-weight:800}

/* calculator */
.calc-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.94fr);background:#fff;border:1px solid rgba(148,163,184,.24);border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}
.calc-form{padding:28px;background:linear-gradient(135deg,#fff,#ecfeff)}
.calc-result{padding:28px;background:radial-gradient(circle at 85% 8%,rgba(34,211,238,.22),transparent 32%),linear-gradient(150deg,var(--navy),#0c2546);color:#fff}
.calc-result h3{color:#fff}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.field{display:grid;gap:7px}
.field.full{grid-column:1/-1}
label{font-weight:700;font-size:.85rem;color:#1e293b}
input,select,textarea{width:100%;border:1px solid #cbd5e1;border-radius:13px;padding:13px 14px;font:inherit;background:#fff;outline:none}
input:focus,select:focus{border-color:var(--volt-deep);box-shadow:0 0 0 4px rgba(34,211,238,.16)}
.checks{grid-column:1/-1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:4px 0 12px}
.check{display:flex;gap:8px;align-items:flex-start;padding:12px;border-radius:14px;border:1px solid var(--line);background:#fff;color:#33415c;font-weight:700;font-size:.86rem}
.check input{width:18px;height:18px;accent-color:var(--volt-deep);flex:none;margin-top:2px}
.notice{grid-column:1/-1;padding:12px;border-radius:14px;background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;font-size:.81rem}
.result-empty{display:grid;place-items:center;min-height:360px;text-align:center;color:#cbd5e1}
.result-panel{display:none}
.profile{display:inline-flex;align-items:center;padding:8px 13px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);font-weight:800;text-transform:uppercase;letter-spacing:.1em;font-size:.74rem;color:var(--volt)}
.kwh{font-family:Sora;font-size:3rem;line-height:1;font-weight:800;letter-spacing:-.05em;margin:12px 0;color:#fff}
.result-list{display:grid;gap:9px;margin:16px 0;padding:0}
.result-list li{list-style:none;padding:12px;border-radius:14px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.11);color:#e2e8f0;font-size:.9rem}

/* ad zones */
.ad-zone{margin:0 auto;max-width:var(--max);padding:8px 20px;display:flex;justify-content:center}
.ad-zone:empty{display:none}
.ad-inline{margin:22px 0}

.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}
.sidebar{position:sticky;top:90px;display:grid;gap:16px}
.widget{background:#fff;border:1px solid rgba(148,163,184,.26);border-radius:20px;padding:18px;box-shadow:var(--shadow-soft)}
.widget h3{font-size:.95rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px;color:var(--volt-deep)}
.side-list{display:grid;gap:10px;margin:0;padding:0}
.side-list li{list-style:none;display:grid;grid-template-columns:30px 1fr;gap:10px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list b{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:#ecfeff;color:var(--volt-deep)}
.side-list a{font-size:.89rem;font-weight:700;color:#1e293b}
.featured-box{padding:20px;border-radius:20px;background:linear-gradient(150deg,var(--navy),#123a61);color:#fff;box-shadow:var(--shadow)}
.featured-box h3{color:#fff}.featured-box p{color:#cbd5e1}

/* article */
.article-page{background:#f8fafc}
.article-hero{padding:38px 0 22px;background:linear-gradient(180deg,#fff,#f8fafc)}
.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:14px}
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}
.article{background:#fff;border:1px solid rgba(148,163,184,.26);border-radius:24px;overflow:hidden;box-shadow:var(--shadow-soft)}
.article-cover{height:200px;display:grid;place-items:center;font-size:5rem;background:linear-gradient(135deg,var(--navy),#0c2546)}
.article-body{padding:28px}
.article-body h2{font-size:1.55rem;margin-top:28px;margin-bottom:12px}
.article-body h3{font-size:1.18rem;margin-top:20px;margin-bottom:8px}
.article-body ul{color:#33415c}.article-body li{margin-bottom:8px}
.callout{padding:16px;border-radius:16px;background:#ecfeff;border:1px solid #a5f3fc;margin:20px 0;color:#0e5e6e;font-weight:700}
.faq{display:grid;gap:10px}
details{background:#fff;border:1px solid rgba(148,163,184,.3);border-radius:16px;overflow:hidden}
summary{padding:16px 18px;cursor:pointer;font-weight:800;color:var(--navy);list-style:none}
summary::-webkit-details-marker{display:none}
details p{padding:0 18px 16px;margin:0}

.footer{margin-top:50px;padding:38px 0;background:#020617;color:#94a3b8}
.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr;gap:24px}
.footer a{color:#cbd5e1;font-weight:600}
.footer a:hover{color:var(--volt)}
.footer .logo{color:#fff}
.credit{margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.85rem}
.credit strong{color:#fff}

@media(max-width:980px){
  .menu{position:absolute;left:0;right:0;top:100%;display:none;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--line);padding:10px 20px;box-shadow:var(--shadow-soft)}
  .menu.open{display:flex}.menu a{border-radius:12px;padding:13px}
  .menu-btn{display:inline-grid}
  .hero-grid,.calc-wrap,.content-layout,.article-wrap{grid-template-columns:1fr}
  .sidebar{position:static}
  .grid-3{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .topbar .hide-sm{display:none}
  .container{padding:0 16px}
  .nav-cta .btn{display:none}
  .hero{padding:32px 0 22px}
  .hero-actions .btn{width:100%}
  .hero-stats,.grid-3,.grid-2,.form-grid,.checks,.footer-grid{grid-template-columns:1fr}
  .hero-visual{min-height:320px}
  .section{padding:42px 0}
  .section-head{display:block}.section-head .btn{margin-top:12px}
  .calc-form,.calc-result,.article-body{padding:20px}
  .kwh{font-size:2.3rem}
}
@media(prefers-reduced-motion:reduce){.voltline path{animation:none;stroke-dashoffset:0}}

/* social: faixa de compartilhar (fim de conteúdo) + link IG no rodapé */
.social-strip{margin:26px 0 4px;padding:18px 20px;border-radius:18px;border:1px solid var(--line);
  background:linear-gradient(135deg,#ecfeff,#eef6ff);display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.ss-title{font-family:Sora,sans-serif;font-weight:700;color:var(--navy);font-size:1.02rem}
.ss-btns{display:flex;gap:8px;flex-wrap:wrap}
.ss-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:999px;font-weight:700;font-size:.86rem;color:#fff;transition:.18s}
.ss-btn:hover{transform:translateY(-2px)}
.ss-btn.wa{background:#25d366}.ss-btn.fb{background:#1877f2}.ss-btn.tw{background:#0f172a}
.ss-btn.ig{background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888)}
.ss-btn svg{display:block}
.ig-link{display:inline-flex;align-items:center;gap:7px;color:#cbd5e1;font-weight:700}
.ig-link:hover{color:var(--volt)}
.ig-link svg{display:block}
@media(max-width:680px){.social-strip{flex-direction:column;align-items:flex-start}.ss-btns{width:100%}}