*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:#f6f8fb;color:#071f43;font:16px/1.6 Arial,sans-serif}a{color:inherit;text-decoration:none;cursor:pointer}header{background:#061d42;color:white;display:flex;align-items:center;justify-content:space-between;padding:22px max(6vw,20px);gap:20px}nav{display:flex;align-items:center;gap:28px}.brand{font-size:30px;font-weight:900;letter-spacing:-1px;line-height:1}.brand span{font-weight:300;color:#81c447}.brand small{display:block;font-size:12px;letter-spacing:2px;margin-top:7px}.outline{border:1px solid #73819a;padding:10px 16px;border-radius:7px}.hero{background:#061d42;color:white;display:grid;grid-template-columns:1.4fr 1fr;gap:8vw;padding:75px 7vw 85px}.eyebrow{font-size:12px;font-weight:bold;letter-spacing:2px;color:#518b21}.hero .eyebrow,.coverage .eyebrow{color:#9add62}h1{font-size:clamp(42px,5.3vw,76px);line-height:1.05;letter-spacing:-3px;margin:25px 0}em{font-style:normal;color:#91d653}.intro{max-width:510px;color:#c2d0e5;font-size:19px}.actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin:30px 0}.button{display:inline-flex;justify-content:center;align-items:center;background:#8ad04c;color:#102500;font-size:16px;font-weight:700;padding:16px 22px;border:0;border-radius:7px;cursor:pointer;min-height:50px}.button:hover{background:#a1e367}.trust{display:flex;gap:22px;font-size:14px;color:#d1dfed}.hero-card{align-self:center;padding:32px;border:1px solid #476084;border-radius:20px;background:#0b2c59;box-shadow:18px 18px 0 #7bbe4322}.speed{font-size:110px;font-weight:900;line-height:1.1;letter-spacing:-7px;margin:20px 0}.speed small{font-size:18px;letter-spacing:5px;display:block}.price{font-size:20px}.price strong{font-size:45px;letter-spacing:-2px}.price span{font-size:14px}.hero-card .button{width:100%;margin:12px 0}.hero-card>small{font-size:12px;color:#bfcee2}.benefits{display:grid;grid-template-columns:repeat(4,1fr);padding:32px 7vw;background:white;gap:28px;border-bottom:1px solid #dae1eb}.benefits b,.benefits span{display:block}.benefits b{font-size:20px}.benefits span{font-size:14px;color:#52617b}section:not(.hero){padding:75px 7vw}h2{font-size:clamp(30px,3.6vw,48px);line-height:1.15;letter-spacing:-1.5px;margin:15px 0}.muted{color:#53657d}.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:38px}.plan{background:white;border:1px solid #dbe3ec;border-radius:14px;padding:26px}.plan h3{font-size:40px;line-height:1.1;margin:12px 0 22px}.plan h3 span{font-size:16px;font-weight:400}.plan p{margin:7px 0;color:#52617b;font-size:14px}.plan .price{border-bottom:1px solid #dde4ed;padding-bottom:16px;margin-bottom:16px}.plan .button{width:100%;margin-top:22px}.coverage{background:#092853;color:white;display:grid;grid-template-columns:1fr 1fr;gap:8vw}.coverage p{max-width:460px}.coverage form{display:grid;gap:10px}.coverage input{padding:15px;font:inherit;border-radius:7px;border:1px solid #91a5c2;background:white;color:#071f43;width:100%}.coverage small{font-size:13px;color:#c2d0e5}.support{display:grid;grid-template-columns:1fr 1fr;gap:8vw;background:white}.support-link{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #dbe3ec;padding:24px 0;font-size:22px}.support-link small{display:block;font-size:14px;color:#53657d}footer{background:#04162f;color:#c6d2e4;padding:40px 7vw;display:grid;gap:16px}footer small{font-size:12px}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #50aaff;outline-offset:4px}@media(max-width:760px){header{flex-wrap:wrap}nav{gap:16px;font-size:14px;flex-wrap:wrap}.hero{grid-template-columns:1fr;padding:40px 6vw 55px;gap:35px}.hero-card{max-width:440px;width:100%}.speed{font-size:85px}.benefits{grid-template-columns:1fr 1fr;padding:25px 6vw}.plans{grid-template-columns:1fr}.coverage,.support{grid-template-columns:1fr;gap:25px}section:not(.hero){padding:45px 6vw}h1{letter-spacing:-2px}.trust{flex-wrap:wrap;gap:8px 20px}}
footer .brand{background:url('brand.png') center / cover;width:320px;max-width:100%;height:195px;font-size:0}footer .brand span{font-size:0}
section.campaigns{background:#061d42;color:white;padding:30px 7vw 40px}.slides{border:1px solid #345277;border-radius:20px;overflow:hidden;background:#08244c}.slide{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:35px;padding:25px;min-height:420px}.slide[hidden]{display:none}.slide img{width:100%;height:370px;object-fit:contain;border-radius:12px}.slide .eyebrow{color:#9add62}.slide p{max-width:410px}.carousel-controls{display:flex;justify-content:center;gap:12px;align-items:center;margin-top:18px}.carousel-controls button{background:#18395f;color:white;border:1px solid #6480a2;border-radius:8px;padding:10px 16px;min-height:44px;cursor:pointer;font:inherit}.about{background:#eaf2e5}.about p{max-width:700px;font-size:18px}.about .plain{font-weight:bold;text-decoration:underline}.faq{max-width:1000px;margin:auto}.faq details{border-bottom:1px solid #cbd7e5;padding:18px 0}.faq summary{cursor:pointer;font-size:18px;font-weight:700;padding:8px 0}.faq details p{color:#475c76;max-width:720px}@media(max-width:760px){.slide{grid-template-columns:1fr;gap:10px;padding:18px;min-height:630px}.slide img{height:300px}.slide h2{font-size:30px}.carousel-controls{gap:8px;flex-wrap:wrap}.carousel-controls button{font-size:14px}section.campaigns{padding:15px 6vw 30px}}
/* Crop the contact strip in the banner without altering the original artwork. */
section.campaigns,.slides,.slide{background:#021c48}
.slide img[src="brand.png"]{height:auto;aspect-ratio:1331/340;object-fit:cover;object-position:center 40%;border-radius:0}
footer{background:#021c48}
footer .brand{height:auto;aspect-ratio:1331/340;background-size:100% auto;background-position:center 40%;background-repeat:no-repeat}
.slide img.lifestyle-image{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:18px}

/* Decorative optical fibers, isolated behind the content. */
.hero{position:relative;isolation:isolate;overflow:hidden}
.hero>.fiber-art{position:absolute;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none;opacity:.65}
.fiber-lines{fill:none;stroke:#229ac4;stroke-width:1;opacity:.28}
.fiber-pulses{fill:none;stroke:#71e8ff;stroke-width:2;stroke-linecap:round;stroke-dasharray:12 90 2 900;filter:drop-shadow(0 0 5px #32c5ff);animation:fiber-flow 12s linear infinite}
.fiber-pulses path:nth-child(2n){stroke:#98db55;stroke-dasharray:4 210 18 850}
.fiber-pulses path:nth-child(3n){stroke-dasharray:20 500 3 600;opacity:.5}
@keyframes fiber-flow{to{stroke-dashoffset:-2008}}
.hero>.fiber-toggle{position:absolute;right:7vw;bottom:12px;padding:8px 12px;min-height:36px;border:1px solid #476382;border-radius:20px;background:#082044;color:#c4d9ed;font:inherit;font-size:12px;cursor:pointer}
.hero.fiber-paused .fiber-pulses{animation-play-state:paused}
@media(prefers-reduced-motion:reduce){.fiber-pulses{animation:none}}
.support-link[href*="wa.me"]{display:flex;align-items:center;gap:12px;margin-top:16px;padding:15px 18px;border:0;border-radius:10px;background:#25d366;color:#062b16;font-size:20px;font-weight:700;box-shadow:0 8px 20px #25d36633;transition:transform .2s,background .2s}.support-link[href*="wa.me"]:hover{background:#43e477;transform:translateY(-2px)}.support-link[href*="wa.me"] small{font-size:14px;font-weight:400;color:#124d29}.support-link[href*="wa.me"]:before{content:'◔';display:grid;place-items:center;width:31px;height:31px;border:2px solid currentColor;border-radius:50%;font-size:23px;line-height:1;transform:rotate(35deg)}
.fiber-zone{position:relative;isolation:isolate;overflow:hidden}.fiber-zone>*:not(.fiber-art){position:relative;z-index:1}.fiber-zone>.fiber-art{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.28}.fiber-zone .fiber-pulses{animation-duration:16s}.fiber-zone .fiber-lines{stroke:#379dc8}.fiber-zone .fiber-toggle{display:none}
.plans{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;position:relative}.plans:before{content:'';position:absolute;inset:-75px -7vw;background:#06101f;z-index:-1}.plan{position:relative;overflow:hidden;background:#f7f8f8;border:0;border-radius:0 0 24px 24px;padding:0 22px 24px;box-shadow:0 12px 0 #9aa3aa}.plan:before{content:'PLANO ARTH NET';display:block;margin:0 -22px 20px;padding:17px 18px;background:#ff7412;color:#fff;font-size:19px;font-weight:800;text-align:center}.plan:nth-child(2):before{background:#f6b400}.plan:nth-child(3):before{background:#e71d35}.plan:nth-child(4):before{background:#da159f}.plan:nth-child(5):before{background:#16aee5}.plan:nth-child(6):before{background:#7d22db}.plan h3{font-size:50px;color:#f04418;text-align:center;letter-spacing:-2px;margin:4px 0 12px;text-transform:uppercase}.plan:nth-child(2n) h3{color:#142f69}.plan h3 span{display:block;font-size:17px;letter-spacing:2px;color:#20242a}.plan .eyebrow{display:none}.plan p{padding:8px 4px;margin:4px 0;border-top:1px solid #ff6b40;color:#26313d;font-size:14px}.plan .price{margin:18px 0 0;padding:0;border:0;text-align:center;color:#f04418;font-weight:700}.plan .price strong{font-size:36px}.plan .button{margin-top:16px;background:#8ad04c;color:#102500}.plan:after{content:'POR MÊS';display:block;text-align:center;color:#34383d;font-size:11px;letter-spacing:2px;font-weight:bold;position:absolute;bottom:8px;left:0;right:0}.plan .button{position:relative;z-index:1}
@media(max-width:980px){.plans{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.plans{grid-template-columns:1fr}.plan h3{font-size:45px}}
#planos{background:#06101f;color:white}#planos .muted{color:#c2d0e5}
.plan:before{content:'PLANO ARTHNET'}
.plan .popular-badge{display:block;width:fit-content;margin:-4px auto 10px;padding:5px 14px;border-radius:20px;background:#092f61;color:white;font-size:14px;font-weight:700;letter-spacing:.3px}