/* LETROU v1.35.0 — Estudar canto editorial, visual e prático */
body.lt15-internal.letrou-page-estudar .letrou-main,body.lt15-internal.letrou-page-guide .letrou-main{background:linear-gradient(180deg,#eef7ff 0,#f8fbff 34%,#f7fbff 100%)}
.letrou-study-hero-v1350{position:relative;overflow:hidden;padding-top:42px!important;padding-bottom:54px!important}
.letrou-study-hero-v1350:before,.letrou-study-hero-v1350:after{content:"";position:absolute;left:-8%;right:-8%;height:90px;border-radius:50%;background:rgba(255,255,255,.38);filter:blur(1px);pointer-events:none}.letrou-study-hero-v1350:before{bottom:26px;transform:rotate(-4deg)}.letrou-study-hero-v1350:after{bottom:-30px;transform:rotate(4deg)}
.letrou-study-hero-v1350 .letrou-container{position:relative;z-index:1}.letrou-study-hero-v1350 p{margin-left:auto!important;margin-right:auto!important}.letrou-study-hero-pills-v1350{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:18px}.letrou-study-hero-pills-v1350 span{padding:7px 11px;border-radius:999px;background:#fff;border:1px solid #dbeaf8;color:#315a7b;font-size:12px;font-weight:800;box-shadow:0 4px 14px #275a840a}
.letrou-study-index-v1350{padding-top:36px!important}.letrou-guide-grid-v1350{gap:18px!important}.letrou-guide-card-v1350{padding:0!important;overflow:hidden;display:flex!important;flex-direction:column;min-height:100%;transition:transform .18s ease,box-shadow .18s ease!important}.letrou-guide-card-v1350:hover{transform:translateY(-4px);box-shadow:0 16px 34px #22598718!important}.letrou-guide-photo-v1350{display:block;aspect-ratio:16/8.5;overflow:hidden;background:#dbe8f4}.letrou-guide-photo-v1350 img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .32s ease}.letrou-guide-card-v1350:hover .letrou-guide-photo-v1350 img{transform:scale(1.035)}.letrou-guide-copy-v1350{display:flex;flex-direction:column;align-items:flex-start;padding:20px 22px 22px;flex:1}.letrou-guide-copy-v1350 small{font-size:11px;font-weight:900;letter-spacing:.08em;color:#1672d4}.letrou-guide-card-v1350 h2{font-size:21px!important;line-height:1.22!important;margin:8px 0 8px!important;color:#102348!important}.letrou-guide-card-v1350 p{font-size:14.5px!important;line-height:1.58!important;color:#4d6480!important;margin:0 0 16px!important}.letrou-guide-card-v1350 .letrou-guide-link{margin-top:auto;font-size:14px!important;color:#056df2!important}
.letrou-study-article-hero-v1350{padding-top:26px}.letrou-study-article-hero-v1350 img{display:block;width:100%;height:clamp(220px,30vw,370px);object-fit:cover;border-radius:22px;box-shadow:0 14px 40px #17486c1c;border:1px solid #dfeaf5}.letrou-study-reading-head-v1350{padding:24px 0 18px!important;background:transparent!important}.letrou-study-reading-head-v1350 h1{max-width:900px;margin-left:auto!important;margin-right:auto!important}.letrou-study-reading-head-v1350 p{margin-left:auto!important;margin-right:auto!important;font-size:18px!important}
.letrou-study-layout-v1350{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:22px;align-items:start;padding-bottom:38px}.letrou-study-body-v1350{width:auto!important;margin:0!important;padding:30px 34px!important;font-size:17px!important;line-height:1.72!important}.letrou-study-body-v1350 .letrou-study-lead{font-size:18px;font-weight:600;line-height:1.7;color:#294562;margin:0 0 28px}.letrou-study-inline-figure-v1350{float:right;width:min(44%,330px);margin:0 0 20px 24px}.letrou-study-inline-figure-v1350 img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:15px;border:1px solid #dce9f5;box-shadow:0 8px 22px #22598712}.letrou-study-inline-figure-v1350 figcaption{font-size:11.5px;line-height:1.4;color:#6b8197;margin-top:6px}.letrou-study-body-v1350:after{content:"";display:block;clear:both}.letrou-study-section{padding:8px 0 6px}.letrou-study-section h2{font-family:Georgia,'Times New Roman',serif;font-size:25px!important;line-height:1.2;margin:20px 0 11px!important;color:#102348}.letrou-study-section p{margin:0 0 13px;color:#324c68}.letrou-study-list{margin:8px 0 16px;padding-left:24px}.letrou-study-list li{margin:7px 0;color:#324c68}.letrou-study-list li::marker{color:#0877ef;font-weight:900}.letrou-study-tip{margin:22px 0;padding:18px 20px;border:1px solid #cde6ff;background:linear-gradient(135deg,#eff8ff,#f9fcff);border-radius:16px}.letrou-study-tip strong{display:block;color:#0b5fae;font-size:15px;margin-bottom:5px}.letrou-study-tip p{margin:0;color:#31506d}.letrou-study-practice{border-top:1px solid #e7eef7;margin-top:12px;padding-top:12px}.letrou-study-questions{display:grid;grid-template-columns:1fr;gap:9px;margin:10px 0 18px}.letrou-study-questions>div{display:flex;gap:11px;align-items:center;padding:12px 14px;background:#f7fbff;border:1px solid #dceaf7;border-radius:13px}.letrou-study-questions b{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#0877ef;color:#fff;flex:none}.letrou-study-questions span{font-weight:700;color:#284764}.letrou-study-body-v1350 .letrou-learning-note{font-size:14.5px!important;line-height:1.6;margin-top:26px!important}.letrou-study-body-v1350 .letrou-learning-note strong{font-size:15px;color:#6f4a12}
.letrou-study-related-v1350{position:sticky;top:118px;background:#fff;border:1px solid #e2ecf6;border-radius:18px;padding:16px;box-shadow:0 6px 22px #2259870d}.letrou-study-related-head-v1350{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 2px 12px}.letrou-study-related-head-v1350 h2{font-family:Georgia,'Times New Roman',serif;font-size:20px;margin:0;color:#15395a}.letrou-study-related-head-v1350 a{font-size:12px;font-weight:900;color:#0877ef}.letrou-study-related-card-v1350{display:grid;grid-template-columns:108px 1fr;gap:12px;padding:10px 0;border-top:1px solid #edf2f7}.letrou-study-related-card-v1350:first-of-type{border-top:0}.letrou-study-related-card-v1350 img{width:108px;height:92px;object-fit:cover;border-radius:12px;background:#dfeaf5}.letrou-study-related-card-v1350 span{min-width:0}.letrou-study-related-card-v1350 small{display:block;color:#0877ef;font-size:9px;font-weight:900;letter-spacing:.07em}.letrou-study-related-card-v1350 strong{display:block;color:#173b5e;font-size:14px;line-height:1.25;margin:3px 0 5px}.letrou-study-related-card-v1350 em{display:block;color:#60768e;font-style:normal;font-size:11.5px;line-height:1.35}
html[data-letrou-theme="dark"] .letrou-guide-copy-v1350 small,html[data-letrou-theme="dark"] .letrou-study-related-card-v1350 small{color:#6db7ff}html[data-letrou-theme="dark"] .letrou-study-body-v1350 .letrou-study-lead,html[data-letrou-theme="dark"] .letrou-study-section p,html[data-letrou-theme="dark"] .letrou-study-list li{color:#d5e2f1}html[data-letrou-theme="dark"] .letrou-study-section h2,html[data-letrou-theme="dark"] .letrou-study-related-head-v1350 h2,html[data-letrou-theme="dark"] .letrou-study-related-card-v1350 strong{color:#f3f7ff}html[data-letrou-theme="dark"] .letrou-study-tip{background:#102c46;border-color:#285174}html[data-letrou-theme="dark"] .letrou-study-tip p{color:#d5e2f1}html[data-letrou-theme="dark"] .letrou-study-related-v1350{background:#172b47;border-color:#294567}
@media(max-width:980px){.letrou-study-layout-v1350{grid-template-columns:1fr}.letrou-study-related-v1350{position:static}.letrou-study-related-v1350{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.letrou-study-related-head-v1350{grid-column:1/-1}.letrou-study-related-card-v1350{grid-template-columns:1fr;padding:0;border:1px solid #edf2f7;border-radius:14px;overflow:hidden}.letrou-study-related-card-v1350 img{width:100%;height:140px;border-radius:0}.letrou-study-related-card-v1350 span{padding:0 12px 13px}}
@media(max-width:680px){.letrou-study-hero-v1350{padding-top:30px!important;padding-bottom:36px!important}.letrou-study-hero-pills-v1350{justify-content:flex-start}.letrou-study-index-v1350{width:calc(100% - 20px)!important;padding-top:20px!important}.letrou-guide-grid-v1350{gap:14px!important}.letrou-guide-copy-v1350{padding:17px}.letrou-guide-card-v1350 h2{font-size:20px!important}.letrou-guide-card-v1350 p{font-size:15px!important}.letrou-study-article-hero-v1350{width:100%!important;padding-top:0}.letrou-study-article-hero-v1350 img{border-radius:0;height:220px;border-left:0;border-right:0}.letrou-study-reading-head-v1350{padding:24px 14px 12px!important}.letrou-study-layout-v1350{width:100%!important;gap:12px}.letrou-study-body-v1350{border-left:0!important;border-right:0!important;border-radius:0!important;padding:24px 18px!important;font-size:16.5px!important}.letrou-study-body-v1350 .letrou-study-lead{font-size:17px}.letrou-study-inline-figure-v1350{float:none;width:100%;margin:0 0 20px}.letrou-study-inline-figure-v1350 img{aspect-ratio:16/9}.letrou-study-section h2{font-size:23px!important}.letrou-study-related-v1350{margin:0 12px;grid-template-columns:1fr}.letrou-study-related-head-v1350{grid-column:auto}.letrou-study-related-card-v1350{grid-template-columns:112px 1fr}.letrou-study-related-card-v1350 img{height:104px;width:112px}.letrou-study-related-card-v1350 span{padding:10px 10px 10px 0}}