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@media(max-width:1000px){.cards{grid-template-columns:repeat(2,1fr)}.workspace{padding:24px}.layout{grid-template-columns:210px 1fr}.sidebar .logo{width:165px}.hero{padding:30px;gap:24px}.two-col,.wide-grid{grid-template-columns:1fr}}
@media(max-width:700px){.layout{display:block}.sidebar{position:relative;height:auto;padding:18px}.sidebar nav{display:none;grid-template-columns:1fr 1fr}.sidebar.open nav{display:grid}.sidebar footer{display:none}.sidebar .brand{justify-content:space-between}.mobile-menu{display:block}.workspace{padding:18px}.hero{grid-template-columns:1fr;padding:25px}.hero h1{letter-spacing:-1.5px}.public{padding:18px}.public nav{margin-bottom:25px}.public nav .logo{width:150px}.cards{grid-template-columns:1fr}.topbar{align-items:flex-start}.page-head{align-items:flex-start;flex-direction:column}.auth{margin:20px}.auth .intro{min-height:230px}.auth .intro h1{font-size:32px}.hero-visual{transform:none}.day-grid{grid-template-columns:repeat(7,140px)}.form-grid{grid-template-columns:1fr}}
.course-card{overflow:hidden}.course-cover{display:block;width:calc(100% + 50px);height:170px;object-fit:cover;margin:-25px -25px 20px;border-bottom:1px solid #fff}
.upload-control{display:block;position:relative;margin:14px 0}.upload-control .upload-label{display:block;font-size:13px;font-weight:700;color:#294b64;margin-bottom:8px}.upload-control input[type=file]{position:absolute;inline-size:1px;block-size:1px;opacity:0;pointer-events:none}.upload-button{display:inline-flex;cursor:pointer;align-items:center;justify-content:center;min-height:42px;padding:10px 18px}.selected-file{display:block;margin-top:8px;color:#567086;overflow-wrap:anywhere}.course-card form{margin:16px 0}.course-card>.btn.danger{margin-top:18px}
.confirm-dialog{max-width:520px;border:1px solid #fff;border-radius:20px;padding:28px;background:#f8fcff;color:#12344c;box-shadow:0 24px 80px #062d4f55}.confirm-dialog::backdrop{background:#062d4f88;backdrop-filter:blur(6px)}.confirm-dialog h2{margin-top:0}.confirm-dialog p{line-height:1.7;color:#476379}.confirm-dialog .actions{justify-content:flex-end;margin-top:22px}
.question-create{max-width:980px}.question-statement{grid-column:1/-1}.question-builder{grid-column:1/-1;border:1px solid #c8dceb;border-radius:16px;padding:18px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.question-builder legend{padding:0 8px;font-weight:800;color:#12344c}.question-options{display:grid;gap:10px;margin:18px 0}.option-row{display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:center;padding:13px 15px;border-radius:12px;background:#ffffffb8;border:1px solid #d3e3ef}.option-row>strong{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:#d9f2ff;color:#075384}.option-row.correct-option{border-color:#44a56f;background:#e9f8ef}.option-row.correct-option>strong{background:#278a55;color:#fff}.option-row.selectable{grid-template-columns:auto 42px 1fr;cursor:pointer}.option-row.selectable input{width:18px;height:18px;accent-color:#0877cc}.question-body{font-size:16px;font-weight:650;color:#183d58!important;white-space:pre-wrap}@media(max-width:700px){.question-builder{grid-template-columns:1fr}}
.slot.planned{background:#d8f0ff;border-left-color:#0877cc}.slot.completed{background:#dcf7e7;border-left-color:#24945a;color:#145a38;box-shadow:0 7px 18px #24945a18}.slot.completed::after{content:'Concluída ✓';display:block;margin-top:7px;font-size:11px;font-weight:800;color:#1e7a49}.slot.extra{background:#fff0d2;border-left-color:#e58a00;color:#7a4b00}.extra-study{border-color:#ffd58e}.tracking-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.student-tracking{grid-column:auto}.tracking-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.tracking-stats>div{padding:14px;border-radius:13px;background:#ffffffa6;border:1px solid #fff}.tracking-stats strong{display:block;font-size:25px;color:#07578c}.tracking-stats span{display:block;margin-top:4px;font-size:12px;color:#567086}.review-methods{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 20px}.session-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.session-facts span{padding:12px;border-radius:11px;background:#eef7fd;color:#3f6178}.session-facts strong{display:block;color:#12344c;margin-bottom:5px;font-size:12px}.session-history{border-left:4px solid #0781a9}@media(max-width:700px){.tracking-cards{grid-template-columns:1fr}.tracking-stats,.session-facts{grid-template-columns:1fr}}
.review-intro{margin-bottom:22px}.review-intro h2{margin-top:12px}.review-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:20px 0}.review-card{position:relative;overflow:hidden}.review-card::before{content:'';position:absolute;inset:0 auto 0 0;width:5px;background:#56aee5}.review-card.due::before{background:#ed8a16}.review-card.due{border-color:#ffd39a}.review-when{font-size:12px;font-weight:800;color:#075a99}.review-card.due .review-when{color:#aa5700}.review-question{font-weight:750;color:#244b66!important;margin-top:20px}.review-actions{display:flex;gap:8px;flex-wrap:wrap}.review-actions form{margin:0}.review-actions .btn{min-width:74px}.review-actions form:nth-child(2) .btn{background:#fff0d8;color:#8b5400}.review-actions form:nth-child(3) .btn{background:#ffe4e0;color:#9d2c29}@media(max-width:700px){.review-grid{grid-template-columns:1fr}.review-intro .split{align-items:flex-start;flex-direction:column}}
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.flashcard-inner{transform:none;filter:drop-shadow(0 15px 22px #12344c18);transition:none}.flashcard-face{transition:transform .55s cubic-bezier(.2,.75,.25,1),opacity .2s ease;transform-style:preserve-3d}.flashcard-front{transform:rotateY(0deg);opacity:1}.flashcard-back{transform:rotateY(180deg);opacity:0}.flashcard-toggle:checked+.flashcard-inner{transform:none}.flashcard-toggle:checked+.flashcard-inner .flashcard-front{transform:rotateY(-180deg);opacity:0}.flashcard-toggle:checked+.flashcard-inner .flashcard-back{transform:rotateY(0deg);opacity:1}@media(prefers-reduced-motion:reduce){.flashcard-face{transition:none}}