/* Layout refinement: same BRAINS palette and components, stronger editorial rhythm. */
body{background:#fff}
.container{width:min(1120px,calc(100% - 64px))}
header{background:#ffffffed;border-color:#edf0f5}
.navigation{height:76px}
.brand{font-size:22px}.mark{width:37px;height:37px;font-size:24px}
.button{border-radius:10px;box-shadow:0 4px 10px #17233b09}
.eyebrow{font-size:11px;letter-spacing:1.4px;display:flex;align-items:center;gap:10px;margin-bottom:20px}
.eyebrow:before{content:"";width:23px;height:2px;background:currentColor;flex-shrink:0}
.hero{width:min(1280px,calc(100% - 40px));padding:76px 72px;margin:24px auto 0;gap:66px;grid-template-columns:1.12fr 1fr;background:radial-gradient(ellipse at 95% 100%,#3679f8 0,transparent 56%),linear-gradient(125deg,#1646ce,#2458e6);border-radius:28px;color:white;overflow:hidden;position:relative}
.hero .eyebrow{color:#e1eaff;font-size:10px;letter-spacing:1.1px}
h1{font-size:clamp(40px,4.15vw,57px);font-weight:700;line-height:1.08;letter-spacing:-2.4px;text-wrap:balance;margin-bottom:24px}
h1 span{color:#c5d8ff}
.hero-copy p{color:#e1eaff;font-size:16px;line-height:1.65;max-width:450px}
.hero-copy .lead{font-size:18px;color:white;line-height:1.55;margin-bottom:14px;max-width:440px}
.hero-actions{gap:24px;margin-top:28px}
.hero-actions>.button{background:white;color:#1748ce;box-shadow:0 6px 20px #06257220}
.hero-actions>.button:hover{background:#eaf0ff}
.hero-actions>.text-link{color:white;font-size:14px}
.hero-visual{color:var(--ink);padding:21px;background:#f0f4ff;border:1px solid #fff9;border-radius:22px;transform:rotate(3deg);box-shadow:0 30px 65px #09277b40;position:relative;margin:12px 0 20px}
.hero-visual:before{content:"";position:absolute;inset:18px -10px -13px 12px;background:#ffffff25;border:1px solid #ffffff55;border-radius:22px;transform:rotate(-7deg);z-index:-1}
.small-mark{width:25px;height:25px;font-size:17px;border-radius:8px}
.visual-top{font-size:12px}.mini-brand{font-size:12px;gap:7px}
.demo-card{min-height:287px;margin:20px 0 18px;border-radius:16px;padding:28px 16px;box-shadow:0 8px 24px #213a6409}
.card-content h2{font-size:45px;font-weight:650}
.card-content p{font-size:14px}
.demo-caption{font-size:12px;margin-top:16px}
.visual-bottom p{font-size:12px}.visual-bottom strong{font-size:13px}
.section{padding-block:100px}
.section-heading h2{font-size:40px;line-height:1.12;font-weight:650;letter-spacing:-1.6px;text-wrap:balance;margin-bottom:22px}
.section-heading h2 span{color:var(--ink)}
.section-heading>p{font-size:16px;line-height:1.65}
.science{background:white;border:0;padding-block:110px 88px}
.science>.container{display:grid;grid-template-columns:1fr 1.1fr;column-gap:80px;align-items:start}
.science .section-heading h2{max-width:440px}
.science-grid{display:contents}
.science-copy{grid-column:1;grid-row:1;align-self:center}
.science-copy p{font-size:15px;line-height:1.7;margin-bottom:17px}
.science-copy .statement{font-size:15px;margin-top:25px;padding-left:16px}
.chart{grid-column:2;grid-row:1;align-self:center;background:#f7f9fd;border:1px solid #e6ebf4;padding:28px;border-radius:22px;box-shadow:0 16px 40px #17233b06}
.chart-legend{font-size:12px;margin-bottom:30px}figcaption{font-size:12px;line-height:1.5;margin-top:18px}
.evidence{grid-column:1 / -1;background:#f5f7fb;border:1px solid #edf0f5;border-radius:16px;padding:24px 30px;margin-top:38px;gap:30px}
.evidence-number{display:flex;align-items:center;gap:12px;font-size:45px;letter-spacing:-2px}
.evidence-number span{max-width:90px;font-size:13px;color:var(--muted)}
.evidence p{font-size:14px;max-width:490px;line-height:1.6}
#como-usar{width:min(1280px,calc(100% - 40px));padding:65px 72px;background:#f5f7fb;border:1px solid #edf0f5;border-radius:28px;margin-bottom:24px}
#como-usar .section-heading{display:flex;flex-direction:column;align-items:center;text-align:center}
#como-usar .section-heading h2{max-width:650px;font-size:40px}
#como-usar .section-heading h2 span{color:var(--blue)}
.how-layout{grid-template-columns:.8fr 1.4fr;gap:35px;margin-top:28px;align-items:stretch}
.illustration{align-self:center;background:transparent;border-radius:20px}
.illustration img{mix-blend-mode:multiply}
.image-caption{gap:6px;margin:8px 0 20px}.image-caption .pill{background:white;border:1px solid #e6ebf4}
.illustration>p{font-size:21px;line-height:1.35;font-weight:550;padding-bottom:0;margin-bottom:0}
.steps{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.steps li,.steps li:first-child,.steps li:last-child{display:flex;flex-direction:column;gap:18px;border:1px solid #e8edf5;border-radius:16px;padding:24px;background:white;box-shadow:0 6px 18px #17233b03}
.step-number{width:34px;height:34px;min-width:34px;border-radius:10px;background:#edf2ff;font-size:12px}
.steps h3{font-size:18px;line-height:1.3;margin:0 0 10px;font-weight:650}
.steps p{font-size:14px;line-height:1.65}
.progressive{background:white;border:0;padding-block:88px}
.progressive .section-heading{text-align:center;max-width:630px;margin:auto}
.progressive .eyebrow{justify-content:center}
.progressive .section-heading h2 span{color:var(--blue)}
.progressive .section-heading>p{margin-inline:auto;max-width:550px}
.levels{gap:20px;margin-top:40px;position:relative}
.level{padding:25px;border-radius:18px;background:#fff;border:1px solid #e3e8f0;box-shadow:0 12px 28px #17233b06;position:relative}
.level:not(:last-child):after{content:"\2192";position:absolute;right:-23px;top:50%;z-index:1;background:white;border:1px solid #e3e8f0;border-radius:50%;width:26px;height:26px;display:grid;place-items:center;color:var(--blue);font-size:14px}
.level-stage{font-size:10px;letter-spacing:.8px}
.level h3{font-size:17px;font-weight:600;line-height:1.4;margin:16px 0 26px}
.sample-front{background:#f3f6fc;border:1px solid #e9eef7;border-radius:10px;padding:16px}
.sample-front p{font-size:27px;margin-top:10px;font-weight:600}
.sample-back{padding:21px 3px 0}
.sample-back p{font-size:14px;min-height:67px}
.card-label{font-size:10px;letter-spacing:1.3px}
.progress-note{font-size:12px;margin-top:24px}
.transition-note{font-size:14px;max-width:740px;background:#f5f7fb;border:1px solid #edf0f5;border-radius:12px;padding:19px 25px;margin-top:24px}
.closing{width:min(1280px,calc(100% - 40px));background:radial-gradient(ellipse at 90% 90%,#3178f3,transparent 60%),#194bd7;border-radius:28px;padding:62px 40px;margin-block:0 40px}
.closing .eyebrow{justify-content:center;font-size:10px}
.closing h2{font-size:42px;letter-spacing:-1.7px;font-weight:650;line-height:1.15;text-wrap:balance}
.closing p{font-size:16px;max-width:560px}
footer{padding-block:10px 35px}footer .brand{font-size:20px}footer .mark{width:32px;height:32px;border-radius:9px;font-size:21px}
@media(min-width:1500px){.hero{padding-block:85px}}
@media(max-width:1100px){.hero{padding:55px 40px;gap:35px}h1{font-size:47px}.science>.container{gap:0 45px}#como-usar{padding:55px 40px}.how-layout{grid-template-columns:.65fr 1.4fr;gap:24px}.steps li,.steps li:first-child,.steps li:last-child{padding:20px}.evidence{gap:22px}.evidence-number{font-size:38px}.evidence p{max-width:400px}.section-heading h2{font-size:36px}}
@media(max-width:800px){.hero{padding:48px 32px;gap:25px}h1{font-size:39px;letter-spacing:-1.7px}.hero-copy .lead{font-size:16px}.hero-copy p{font-size:14px}.hero-actions{gap:10px}.hero-actions .button{font-size:13px;padding-inline:16px}.hero-actions .text-link{font-size:13px}.hero-visual{padding:15px}.mini-brand{font-size:10px}.demo-card{min-height:270px}.card-content h2{font-size:35px}.science>.container{column-gap:30px}.chart{padding:18px}.section-heading h2{font-size:33px}.evidence{flex-wrap:wrap}.evidence p{flex:1;min-width:200px}.evidence .text-link{margin-left:0}.how-layout{grid-template-columns:1fr}.illustration{display:none}.levels{gap:14px}.level{padding:18px}.level:not(:last-child):after{right:-21px}.level h3{font-size:15px}.level-stage{font-size:9px}}
@media(max-width:700px){.container{width:calc(100% - 40px)}.navigation{min-height:104px;height:auto}.navlinks{font-size:13px}.hero{width:calc(100% - 24px);padding:38px 24px 32px;margin-top:12px;grid-template-columns:1fr;gap:30px;border-radius:20px}.hero h1{font-size:43px;max-width:520px;text-wrap:balance}.hero-copy p{font-size:16px;max-width:none}.hero-copy .lead{font-size:17px;max-width:none}.hero .eyebrow{font-size:9px;letter-spacing:.9px;gap:8px}.hero .eyebrow:before{width:15px}.hero-actions{gap:20px}.hero-actions .button{font-size:14px;padding-inline:18px}.hero-visual{transform:none;max-width:390px;margin:5px auto 10px;padding:20px}.hero-visual:before{display:none}.mini-brand{font-size:12px}.demo-card{min-height:270px}.card-content h2{font-size:40px}.section{padding-block:58px}.science>.container{display:block}.science .section-heading h2{font-size:34px;max-width:420px}.science-copy p{font-size:16px}.chart{margin-top:28px;padding:20px}.chart-legend{margin-bottom:20px;font-size:12px}.evidence{padding:22px;gap:18px;margin-top:22px}.evidence-number{font-size:40px}.evidence p{min-width:100%;font-size:14px}#como-usar{width:calc(100% - 24px);padding:38px 22px;border-radius:20px;margin-bottom:0}#como-usar .section-heading{text-align:left;align-items:flex-start}#como-usar .section-heading h2{font-size:32px}.how-layout{margin-top:15px}.steps{gap:12px;margin:0}.steps li,.steps li:first-child,.steps li:last-child{padding:20px;gap:15px}.steps h3{font-size:17px}.steps p{font-size:14px}.progressive .section-heading{text-align:left}.progressive .eyebrow{justify-content:flex-start}.progressive .section-heading h2{font-size:34px}.levels{grid-template-columns:1fr;margin-top:28px;gap:24px}.level{padding:24px}.level-stage{font-size:11px}.level h3{font-size:18px;margin:14px 0 22px}.level:not(:last-child):after{content:"\2193";right:calc(50% - 14px);top:auto;bottom:-27px;width:30px;height:30px}.sample-front p{font-size:28px}.sample-back p{min-height:0;font-size:16px}.card-label{font-size:11px}.progress-note{font-size:13px;text-align:left}.transition-note{font-size:15px;padding:20px}.closing{width:calc(100% - 24px);padding:42px 24px;border-radius:20px;margin-block:0 30px}.closing h2{font-size:33px;letter-spacing:-1.2px}.closing p{font-size:16px}footer{padding-bottom:26px}.section-heading h2{letter-spacing:-1.2px}}
@media(max-width:460px){.steps{grid-template-columns:1fr}.steps li,.steps li:first-child,.steps li:last-child{flex-direction:row;gap:14px}.steps p{font-size:15px}.step-number{width:30px;min-width:30px;height:30px}.steps h3{padding-top:3px}.hero h1{font-size:38px}.hero .eyebrow{font-size:8px;letter-spacing:.6px}.hero-actions{gap:14px}.hero-actions .text-link{font-size:12px}.hero-actions .button{font-size:13px;padding-inline:14px}.hero-visual{padding:16px}.visual-top .pill{font-size:11px}.mini-brand{font-size:11px}}
@media(max-width:350px){.hero{padding-inline:19px}.hero h1{font-size:34px}.hero-actions{gap:9px}.hero-actions .button{padding-inline:11px;font-size:12px}.hero-actions .text-link{font-size:12px;gap:4px}.mini-brand{font-size:10px}.visual-bottom strong{font-size:11px}.visual-bottom p{font-size:11px}.demo-card{padding-inline:12px}.demo-card .button{font-size:12px;padding-inline:12px}#como-usar{padding-inline:18px}.steps li,.steps li:first-child,.steps li:last-child{padding:16px}.closing h2{font-size:29px}}
@media(max-width:800px){.illustration{display:block;width:min(340px,100%);margin:0 auto 12px}.illustration>p{font-size:19px}.illustration img{max-height:200px;object-fit:contain}.image-caption{margin-top:0;margin-bottom:12px}}