/* Design 4 — Futuro Elétrico: preto profundo, gradiente elétrico, bento grid, vidro */
:root {
  --bg: #05050a;
  --panel: rgba(255,255,255,.04);
  --line: rgba(255,255,255,.1);
  --text: #f5f5f7;
  --muted: #a1a1b5;
  --cyan: #22d3ee;
  --violet: #8b5cf6;
  --red: #f43f5e;
  --grad: linear-gradient(90deg, var(--cyan), var(--violet) 55%, var(--red));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 Sora, system-ui, sans-serif; overflow-x: hidden; }
a { color: var(--cyan); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.wrap { width: min(1180px, 100% - 32px); margin-inline: auto; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.aurora { position: fixed; inset: -30% -10% auto; height: 90vh; background: radial-gradient(40% 50% at 25% 40%, rgba(34,211,238,.18), transparent 70%), radial-gradient(35% 45% at 75% 30%, rgba(139,92,246,.22), transparent 70%), radial-gradient(30% 40% at 60% 70%, rgba(244,63,94,.12), transparent 70%); filter: blur(30px); z-index: -1; pointer-events: none; }

.btn { display: inline-flex; justify-content: center; align-items: center; padding: 14px 26px; border-radius: 999px; background: var(--grad); background-size: 200% 100%; color: #05050a; font-weight: 700; text-decoration: none; border: 0; cursor: pointer; font-size: 1rem; transition: background-position .4s, transform .15s; }
.btn:hover { background-position: 100% 0; transform: translateY(-2px); }
.btn:disabled { opacity: .6; }
.btn--glass { background: var(--panel); color: var(--text); border: 1px solid var(--line); backdrop-filter: blur(10px); }
.btn--glass:hover { border-color: var(--cyan); }
.btn--full { width: 100%; }

.nav { position: sticky; top: 12px; z-index: 10; margin-top: 12px; }
.nav__in { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 10px 10px 18px; border-radius: 999px; background: rgba(10,10,18,.7); border: 1px solid var(--line); backdrop-filter: blur(14px); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--text); text-decoration: none; font-size: 1.1rem; }
.nav nav { display: flex; gap: 26px; }
.nav nav a { color: var(--muted); text-decoration: none; font-size: .92rem; }
.nav nav a:hover { color: var(--text); }
.nav .btn { padding: 10px 20px; }

.hero { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; padding: 96px 0 72px; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); font-size: .82rem; color: var(--muted); }
.chip i { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); line-height: 1.02; letter-spacing: -.04em; margin: 22px 0; font-weight: 800; }
.lead { color: var(--muted); font-size: 1.12rem; max-width: 56ch; font-weight: 300; }
.ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.orb { position: relative; aspect-ratio: 1; max-width: 420px; width: 100%; justify-self: center; display: grid; place-items: center; }
.orb__ring { position: absolute; inset: 0; border-radius: 50%; background: conic-gradient(from 0deg, var(--cyan), var(--violet), var(--red), transparent 75%); -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 6px), #000 calc(100% - 5px)); mask: radial-gradient(farthest-side, transparent calc(100% - 6px), #000 calc(100% - 5px)); animation: spin 6s linear infinite; filter: drop-shadow(0 0 20px rgba(34,211,238,.5)); }
.orb__ring--2 { inset: 14%; animation-duration: 9s; animation-direction: reverse; opacity: .6; }
.orb__core { text-align: center; }
.orb__core b { display: block; font-size: clamp(3rem, 7vw, 4.8rem); font-weight: 800; letter-spacing: -.04em; }
.orb__core span { color: var(--muted); text-transform: uppercase; letter-spacing: .3em; font-size: .8rem; }
@keyframes spin { to { transform: rotate(360deg); } }

.section { padding: 72px 0; }
.sec-title { font-size: clamp(1.9rem, 4.2vw, 3rem); letter-spacing: -.03em; margin: 0 0 32px; line-height: 1.1; }
.sub { color: var(--muted); margin: -20px 0 28px; }
.bento { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: minmax(170px, auto); gap: 14px; }
.tile { position: relative; padding: 24px; border-radius: 22px; background: var(--panel); border: 1px solid var(--line); overflow: hidden; transition: border-color .25s, transform .25s; }
.tile:hover { border-color: rgba(34,211,238,.5); transform: translateY(-3px); }
.tile::after { content: ''; position: absolute; inset: auto -30% -60% auto; width: 70%; height: 90%; background: radial-gradient(circle, rgba(139,92,246,.18), transparent 70%); pointer-events: none; }
.tile--xl { grid-column: span 2; grid-row: span 2; }
.tile--wide { grid-column: span 2; }
.tile--accent { background: linear-gradient(135deg, rgba(34,211,238,.18), rgba(244,63,94,.18)); }
.tile__k { font-size: .75rem; text-transform: uppercase; letter-spacing: .14em; color: var(--cyan); }
.tile h3 { margin: 12px 0 8px; font-size: 1.2rem; letter-spacing: -.01em; line-height: 1.3; }
.tile--xl h3 { font-size: 1.8rem; }
.tile p { color: var(--muted); margin: 0; }
.link { color: var(--text); font-weight: 600; text-decoration: none; }
.bars { position: absolute; left: 24px; right: 24px; bottom: 24px; height: 90px; display: flex; align-items: flex-end; gap: 8px; }
.bars i { flex: 1; border-radius: 6px 6px 2px 2px; background: var(--grad); opacity: .85; animation: eq 1.8s ease-in-out infinite; }
.bars i:nth-child(1){height:30%;animation-delay:-.2s}.bars i:nth-child(2){height:60%;animation-delay:-.6s}.bars i:nth-child(3){height:45%;animation-delay:-1s}.bars i:nth-child(4){height:80%;animation-delay:-.4s}.bars i:nth-child(5){height:55%;animation-delay:-1.2s}.bars i:nth-child(6){height:90%;animation-delay:-.8s}.bars i:nth-child(7){height:40%;animation-delay:-1.4s}.bars i:nth-child(8){height:70%;animation-delay:-.1s}
@keyframes eq { 50% { transform: scaleY(.55); } }
.bars i { transform-origin: bottom; }

.reels { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.reel { display: grid; gap: 2px; }
.reel__ph { aspect-ratio: 9/16; border-radius: 18px; border: 1px solid var(--line); background: linear-gradient(160deg, #15152a, #0a0a12); display: grid; place-items: center; font-size: 2rem; color: var(--muted); margin-bottom: 10px; }
.reel span { color: var(--muted); font-size: .88rem; }
.hint { color: var(--muted); font-size: .8rem; margin-top: 16px; }

.glass { padding: 40px; border-radius: 28px; background: rgba(255,255,255,.035); border: 1px solid var(--line); backdrop-filter: blur(16px); }
.form-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; }
.facts { display: grid; gap: 14px; margin-top: 28px; }
.facts dt { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .12em; }
.facts dd { margin: 2px 0 0; font-weight: 600; }
form { display: grid; gap: 4px; }
.field { position: relative; margin-top: 10px; }
.field input, .field textarea { width: 100%; padding: 22px 16px 10px; border-radius: 14px; border: 1px solid var(--line); background: rgba(0,0,0,.35); color: var(--text); font: inherit; resize: vertical; }
.field label { position: absolute; left: 16px; top: 16px; color: var(--muted); pointer-events: none; transition: all .15s; }
.field input:focus + label, .field input:not(:placeholder-shown) + label, .field textarea:focus + label, .field textarea:not(:placeholder-shown) + label { top: 6px; font-size: .72rem; color: var(--cyan); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34,211,238,.15); }
[aria-invalid="true"] { border-color: var(--red) !important; }
.seg { border: 0; padding: 0; margin: 14px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.seg legend { color: var(--muted); font-size: .85rem; margin-bottom: 8px; }
.seg label { cursor: pointer; }
.seg input { position: absolute; opacity: 0; }
.seg span { display: inline-block; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); font-size: .88rem; transition: all .15s; }
.seg input:checked + span { background: var(--grad); color: #05050a; border-color: transparent; font-weight: 700; }
.seg input:focus-visible + span { outline: 2px solid var(--cyan); outline-offset: 2px; }
.err { color: #fb7185; font-size: .8rem; margin: 2px 0 0; }
form .btn { margin-top: 18px; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.is-sent { display: none; }
.success { text-align: center; }
.success__pulse { width: 72px; height: 72px; margin: 0 auto 12px; border-radius: 50%; display: grid; place-items: center; font-size: 2rem; background: var(--grad); animation: glow 1.6s ease-in-out infinite; }
@keyframes glow { 50% { box-shadow: 0 0 0 14px rgba(34,211,238,.12); } }
.success p { color: var(--muted); }

.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 36px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }

[data-reveal] { opacity: 0; transform: translateY(16px) scale(.98); transition: opacity .6s, transform .6s; }
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } [data-reveal] { opacity: 1; transform: none; } }

@media (max-width: 960px) {
  .nav nav { display: none; }
  .hero { grid-template-columns: 1fr; padding: 56px 0 32px; }
  .orb { max-width: 260px; order: -1; }
  .bento { grid-template-columns: 1fr 1fr; }
  .tile--xl { grid-column: span 2; grid-row: span 1; min-height: 280px; }
  .reels { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; gap: 24px; }
  .glass { padding: 24px; }
}
@media (max-width: 560px) {
  .bento { grid-template-columns: 1fr; }
  .tile--xl, .tile--wide { grid-column: auto; }
  .ctas .btn { flex: 1; }
}