:root {
    --ink:#11172a;
    --ink-soft:#1c2440;
    --primary:#6657f8;
    --primary-dark:#5144d7;
    --lime:#c6f66a;
    --surface:#ffffff;
    --canvas:#f5f6f8;
    --line:#e3e5ea;
    --muted:#6f7584;
    --success:#287a50;
    --danger:#b64236;
    --radius:18px;
    --shadow:0 18px 48px rgba(17,23,42,.10);
}

* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; min-width:320px; background:var(--canvas); color:var(--ink); font:16px/1.55 Segoe UI,Arial,sans-serif; }
button,input,select,textarea { font:inherit; }
button,a { -webkit-tap-highlight-color:transparent; }
a { color:inherit; text-decoration:none; }
img { max-width:100%; }
[v-cloak] { display:none!important; }
.shell { width:min(1180px,calc(100% - 40px)); margin-inline:auto; }
.muted { color:var(--muted); }
.eyebrow { margin-bottom:10px; color:var(--primary); font-size:.76rem; font-weight:800; letter-spacing:.12em; text-transform:uppercase; }
.site-header { position:sticky; top:0; z-index:40; height:72px; border-bottom:1px solid var(--line); background:rgba(255,255,255,.96); backdrop-filter:blur(12px); }
.header-inner { height:100%; display:flex; align-items:center; gap:30px; }
.brand { display:inline-flex; align-items:center; gap:10px; font-size:1.3rem; font-weight:900; letter-spacing:-.05em; }
.brand-mark { width:36px; height:36px; display:grid; place-items:center; border-radius:11px; background:var(--primary); color:#fff; box-shadow:0 8px 20px rgba(102,87,248,.28); }
.brand-large { font-size:1.65rem; }
.brand-large .brand-mark { width:44px; height:44px; }
.main-nav { display:flex; align-items:center; gap:22px; margin-left:18px; font-size:.89rem; font-weight:700; color:#596071; }
.main-nav a:hover { color:var(--primary); }
.header-actions { display:flex; align-items:center; gap:12px; margin-left:auto; }
.user-chip { display:flex; align-items:center; gap:10px; }
.avatar { width:38px; height:38px; display:grid; place-items:center; border-radius:12px; background:var(--ink); color:#fff; font-size:.76rem; font-weight:900; }
.user-copy { line-height:1.15; }
.user-copy strong,.user-copy small { display:block; }
.user-copy strong { max-width:140px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:.83rem; }
.user-copy small { margin-top:4px; color:#898e9b; font-size:.7rem; }
.button { min-height:44px; display:inline-flex; align-items:center; justify-content:center; gap:8px; border:1px solid transparent; border-radius:12px; padding:0 18px; cursor:pointer; font-weight:800; transition:.2s ease; }
.button:hover { transform:translateY(-1px); }
.button:disabled { opacity:.55; cursor:not-allowed; transform:none; }
.button-primary { background:var(--primary); color:#fff; box-shadow:0 9px 24px rgba(102,87,248,.22); }
.button-primary:hover { background:var(--primary-dark); }
.button-dark { background:var(--ink); color:#fff; }
.button-lime { background:var(--lime); color:var(--ink); }
.button-ghost { border-color:var(--line); background:#fff; color:#4f5667; box-shadow:none; }
.button-danger { background:#fff0ee; color:var(--danger); }
.button-small { min-height:38px; padding:0 13px; font-size:.8rem; }
.button-block { width:100%; }
.icon-button { width:40px; height:40px; display:grid; place-items:center; border:1px solid var(--line); border-radius:12px; background:#fff; cursor:pointer; }
.alert { border:1px solid; border-radius:12px; padding:12px 14px; font-size:.88rem; font-weight:650; }
.alert-error { border-color:#f3c6c0; background:#fff1ef; color:#9c382f; }
.alert-success { border-color:#bde5cf; background:#eefbf3; color:#237348; }
.alert-info { border-color:#d8d3ff; background:#f3f1ff; color:#5042ca; }
.flash { margin-top:18px; }
.card { border:1px solid var(--line); border-radius:var(--radius); background:#fff; box-shadow:0 1px 2px rgba(17,23,42,.02); }
.card-pad { padding:24px; }
.form-stack { display:grid; gap:16px; }
label { display:grid; gap:7px; color:#343a4a; font-size:.84rem; font-weight:800; }
input,select,textarea { width:100%; border:1px solid #d9dce3; border-radius:11px; outline:none; background:#fff; color:var(--ink); padding:11px 12px; font-weight:400; }
input,select { min-height:44px; }
textarea { min-height:112px; resize:vertical; }
input:focus,select:focus,textarea:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(102,87,248,.10); }
.field-row { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; }
.form-note { color:#7e8492; font-size:.78rem; }
.switch { position:relative; width:44px; height:24px; border:0; border-radius:99px; background:#d5d8df; cursor:pointer; }
.switch:after { content:''; position:absolute; top:3px; left:3px; width:18px; height:18px; border-radius:50%; background:#fff; transition:.2s; }
.switch.active { background:var(--primary); }
.switch.active:after { transform:translateX(20px); }
.pill { display:inline-flex; align-items:center; gap:6px; border-radius:99px; padding:6px 10px; background:#f0efff; color:#5547df; font-size:.72rem; font-weight:850; }
.pill-success { background:#eaf8ef; color:#287a50; }
.pill-muted { background:#f0f1f3; color:#707684; }
.empty-state { padding:42px 24px; text-align:center; color:var(--muted); }
.empty-icon { width:52px; height:52px; display:grid; place-items:center; margin:0 auto 12px; border-radius:16px; background:#f0efff; color:var(--primary); font-size:1.4rem; }

.hero { position:relative; overflow:hidden; padding:78px 0 72px; background:var(--ink); color:#fff; }
.hero:before { content:''; position:absolute; right:-90px; top:-170px; width:430px; height:430px; border:86px solid rgba(102,87,248,.62); border-radius:50%; }
.hero:after { content:''; position:absolute; right:27%; bottom:-60px; width:130px; height:130px; border-radius:30px; background:var(--lime); transform:rotate(15deg); }
.hero-grid { position:relative; z-index:1; display:grid; grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr); align-items:center; gap:55px; }
.hero h1 { max-width:740px; margin:0; font-size:clamp(2.5rem,5vw,4.8rem); line-height:.98; letter-spacing:-.065em; }
.hero h1 span { color:var(--lime); }
.hero-copy { max-width:610px; margin:22px 0 30px; color:#b9becc; font-size:1.05rem; }
.hero-actions { display:flex; flex-wrap:wrap; gap:12px; }
.hero-panel { border:1px solid rgba(255,255,255,.12); border-radius:24px; padding:25px; background:rgba(255,255,255,.07); backdrop-filter:blur(10px); }
.hero-panel strong { display:block; font-size:2.4rem; line-height:1; }
.hero-panel p { margin:8px 0 0; color:#b9becc; }
.hero-stats { display:grid; grid-template-columns:repeat(2,1fr); gap:12px; margin-top:16px; }
.hero-stat { border-radius:15px; padding:16px; background:rgba(255,255,255,.07); }
.hero-stat b { display:block; color:var(--lime); font-size:1.2rem; }
.catalog-section { padding:58px 0 78px; }
.section-heading { display:flex; align-items:end; justify-content:space-between; gap:22px; margin-bottom:24px; }
.section-heading h2 { margin:0; font-size:clamp(1.7rem,3vw,2.35rem); letter-spacing:-.045em; }
.section-heading p { margin:7px 0 0; color:var(--muted); }
.search-box { width:min(360px,100%); display:flex; align-items:center; gap:9px; border:1px solid var(--line); border-radius:12px; background:#fff; padding:0 13px; }
.search-box input { border:0; box-shadow:none; padding-inline:0; }
.course-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:20px; }
.course-card { overflow:hidden; transition:.22s ease; }
.course-card:hover { transform:translateY(-4px); box-shadow:var(--shadow); }
.course-cover { position:relative; min-height:180px; display:flex; align-items:flex-end; overflow:hidden; padding:20px; color:#fff; background:var(--cover,var(--primary)); }
.course-cover:before { content:''; position:absolute; width:180px; height:180px; right:-65px; top:-70px; border:38px solid rgba(255,255,255,.2); border-radius:50%; }
.course-cover span { position:relative; z-index:1; font-size:.75rem; font-weight:850; letter-spacing:.08em; text-transform:uppercase; }
.course-card-body { padding:20px; }
.course-card h3 { min-height:52px; margin:0; font-size:1.18rem; line-height:1.28; letter-spacing:-.025em; }
.course-card p { min-height:68px; margin:10px 0 18px; color:var(--muted); font-size:.86rem; }
.course-card-footer { display:flex; align-items:center; justify-content:space-between; gap:12px; padding-top:15px; border-top:1px solid var(--line); }
.course-card-footer strong { font-size:1.12rem; }

.auth-body { min-height:100vh; display:grid; place-items:center; padding:30px; background:radial-gradient(circle at 15% 15%,#332c70 0,#11172a 36%,#090d18 100%); }
.auth-card { width:min(470px,100%); border-radius:24px; background:#fff; padding:34px; box-shadow:0 24px 70px rgba(0,0,0,.28); }
.install-card { width:min(560px,100%); }
.auth-card h1 { margin:26px 0 8px; font-size:2rem; letter-spacing:-.05em; }
.auth-card .muted { margin:0 0 24px; }
.auth-card .alert { margin-bottom:18px; }
.auth-links { display:flex; justify-content:space-between; margin-top:18px; font-size:.82rem; font-weight:750; }
.auth-links a { color:var(--primary); }

.site-footer { padding:32px 0; background:#0b0f1c; color:#8990a1; }
.footer-inner { display:flex; align-items:center; gap:24px; font-size:.78rem; }
.footer-inner p { margin:auto; }
.brand-light { color:#fff; }
.brand-light .brand-mark { width:30px; height:30px; }

.page-head { padding:42px 0 24px; }
.page-head h1 { margin:0; font-size:clamp(2rem,4vw,3.1rem); letter-spacing:-.055em; }
.page-head p { margin:8px 0 0; color:var(--muted); }
.dashboard-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.metric { padding:22px; }
.metric small { color:var(--muted); font-weight:700; }
.metric strong { display:block; margin-top:8px; font-size:1.9rem; line-height:1; }
.progress-track { height:8px; overflow:hidden; border-radius:99px; background:#e9eaf0; }
.progress-bar { height:100%; border-radius:inherit; background:var(--primary); transition:width .3s; }
.progress-lime .progress-bar { background:var(--lime); }

.course-detail-hero { padding:64px 0; color:#fff; background:linear-gradient(120deg,var(--ink) 0,var(--ink) 62%,var(--course-color) 150%); }
.course-detail-grid { display:grid; grid-template-columns:minmax(0,1.35fr) minmax(290px,.65fr); gap:60px; align-items:center; }
.course-detail-hero h1 { max-width:760px; margin:18px 0; font-size:clamp(2.3rem,5vw,4.4rem); line-height:1; letter-spacing:-.06em; }
.course-detail-hero p { max-width:680px; color:#bdc2d0; font-size:1.04rem; }
.pill-light { border:1px solid rgba(255,255,255,.16); background:rgba(255,255,255,.09); color:#fff; }
.course-meta { display:flex; flex-wrap:wrap; gap:18px; margin-top:28px; color:#d8dbe4; font-size:.8rem; font-weight:750; }
.course-buy-card { overflow:hidden; color:var(--ink); box-shadow:0 25px 70px rgba(0,0,0,.28); }
.course-buy-accent { height:8px; background:var(--lime); }
.course-buy-card h2 { margin:12px 0 6px; }
.course-buy-card p { margin:10px 0 20px; color:var(--muted); font-size:.87rem; }
.course-price { display:block; margin:8px 0; font-size:2.1rem; line-height:1; }
.secure-note { margin-top:13px; color:#777d8a; text-align:center; font-size:.72rem; }
.course-content-grid { display:grid; grid-template-columns:minmax(0,.8fr) minmax(420px,1.2fr); gap:70px; padding-block:58px 80px; }
.course-content-grid h2 { margin:0 0 18px; font-size:1.65rem; letter-spacing:-.04em; }
.rich-copy { color:#5f6676; line-height:1.75; }
.curriculum-list { display:grid; gap:10px; }
.curriculum-item { overflow:hidden; border:1px solid var(--line); border-radius:14px; background:#fff; }
.curriculum-item summary { display:flex; align-items:center; gap:13px; padding:15px; cursor:pointer; list-style:none; }
.curriculum-item summary::-webkit-details-marker { display:none; }
.curriculum-item summary > span:nth-child(2) { min-width:0; flex:1; }
.curriculum-item summary strong,.curriculum-item summary small { display:block; }
.curriculum-item summary strong { font-size:.88rem; }
.curriculum-item summary small { margin-top:3px; color:#8a8f9c; font-size:.72rem; }
.module-number { width:32px; height:32px; display:grid; flex:0 0 auto; place-items:center; border-radius:10px; background:#eeecff; color:var(--primary); font-size:.78rem; font-weight:900; }
.lesson-list { border-top:1px solid var(--line); padding:8px; background:#fafafb; }
.lesson-list > div { display:flex; align-items:center; gap:10px; padding:10px; color:#555c6c; }
.lesson-list strong { min-width:0; flex:1; font-size:.8rem; }
.lesson-list small { color:#9297a3; font-size:.7rem; }

.checkout-shell { padding-block:28px 70px; }
.checkout-back { display:inline-flex; margin-bottom:18px; color:#646b7a; font-size:.82rem; font-weight:750; }
.checkout-grid { display:grid; grid-template-columns:minmax(0,1.25fr) minmax(310px,.75fr); gap:24px; align-items:start; }
.checkout-main { min-height:610px; }
.checkout-main h1 { margin:8px 0; font-size:clamp(1.8rem,3vw,2.5rem); line-height:1.1; letter-spacing:-.05em; }
.checkout-main > div > .muted { margin:0 0 24px; }
.checkout-steps { display:flex; align-items:center; margin-bottom:34px; }
.checkout-steps span { display:flex; align-items:center; gap:7px; color:#a0a4ae; font-size:.73rem; font-weight:800; }
.checkout-steps b { width:27px; height:27px; display:grid; place-items:center; border-radius:50%; background:#eceef2; }
.checkout-steps span.active { color:var(--primary); }
.checkout-steps span.active b,.checkout-steps span.done b { background:var(--primary); color:#fff; }
.checkout-steps i { width:40px; height:1px; margin-inline:8px; background:#dfe1e7; }
.checkout-form { max-width:540px; margin-top:24px; }
.consent { grid-template-columns:20px 1fr; align-items:start; font-weight:500; }
.consent input { width:18px; min-height:18px; margin-top:2px; accent-color:var(--primary); }
.signed-box { display:flex; align-items:center; gap:12px; border:1px solid var(--line); border-radius:14px; padding:14px; background:#fafafb; }
.signed-box > span:nth-child(2) { min-width:0; flex:1; }
.signed-box strong,.signed-box small { display:block; }
.signed-box small { color:var(--muted); }
.signed-box b { color:var(--success); }
.checkout-summary { overflow:hidden; position:sticky; top:94px; }
.checkout-course-cover { min-height:145px; display:flex; align-items:flex-end; padding:18px; color:#fff; }
.checkout-course-cover span { font-size:.72rem; font-weight:850; letter-spacing:.09em; text-transform:uppercase; }
.checkout-summary h2 { margin:7px 0; font-size:1.2rem; line-height:1.3; }
.checkout-summary p { color:var(--muted); font-size:.8rem; }
.summary-line { display:flex; justify-content:space-between; gap:12px; padding:13px 0; border-top:1px solid var(--line); font-size:.82rem; }
.summary-line.total { font-size:1rem; }
.checkout-summary ul { display:grid; gap:8px; margin:16px 0 0; padding:0; color:#5e6575; list-style:none; font-size:.78rem; }
.demo-payment,.payment-result { margin-top:22px; border:1px solid #d9d5ff; border-radius:16px; padding:22px; background:#f6f4ff; }
.demo-payment h3 { margin:8px 0 4px; }
.demo-payment p { margin:0 0 18px; color:#666d7d; font-size:.84rem; }
.demo-badge { border-radius:99px; padding:5px 9px; background:#e5e1ff; color:#5042ca; font-size:.68rem; font-weight:850; text-transform:uppercase; }
.result-icon,.checkout-success > span { width:64px; height:64px; display:grid; place-items:center; border-radius:50%; background:#e7f8ed; color:var(--success); font-size:1.8rem; font-weight:900; }
.payment-result { display:grid; gap:20px; overflow:hidden; }
.payment-result-heading { display:flex; align-items:flex-start; gap:14px; }
.payment-result-heading > div { min-width:0; }
.payment-result-heading .result-icon { width:52px; height:52px; flex:0 0 auto; background:#e9e6ff; color:var(--primary); font-size:.76rem; letter-spacing:.06em; }
.payment-result-heading .result-icon > i { width:19px; height:19px; border:3px solid rgba(102,87,248,.22); border-top-color:var(--primary); border-radius:50%; animation:payment-spin .8s linear infinite; }
.payment-result-heading .result-icon > b { font-size:1.2rem; }
.payment-result-heading h3 { margin:8px 0 4px; }
.payment-result-heading p { margin:0; color:#666d7d; font-size:.84rem; }
.payment-result-error { border-color:#f0c9c9; background:#fff7f7; }
.payment-result-error .result-icon { background:#ffe3e3; color:#b13a3a; font-size:1.2rem; }
.live-status { display:inline-flex; align-items:center; gap:7px; border-radius:99px; padding:5px 9px; background:#e7f8ed; color:#21733e; font-size:.67rem; font-weight:850; text-transform:uppercase; }
.live-status i { width:7px; height:7px; border-radius:50%; background:#27a758; box-shadow:0 0 0 0 rgba(39,167,88,.35); animation:payment-pulse 1.8s infinite; }
@keyframes payment-pulse { 70% { box-shadow:0 0 0 8px rgba(39,167,88,0); } 100% { box-shadow:0 0 0 0 rgba(39,167,88,0); } }
@keyframes payment-spin { to { transform:rotate(360deg); } }
.pix-payment { display:grid; grid-template-columns:minmax(190px,230px) minmax(0,1fr); gap:22px; align-items:center; border-radius:14px; padding:18px; background:#fff; box-shadow:0 8px 28px rgba(50,45,105,.08); }
.pix-qr { min-height:190px; display:grid; place-items:center; border:1px solid var(--line); border-radius:12px; padding:10px; background:#fff; color:var(--muted); font-size:.76rem; text-align:center; }
.pix-qr img { display:block; width:100%; max-width:220px; aspect-ratio:1; object-fit:contain; }
.payment-code { min-width:0; }
.payment-code strong { display:block; margin-bottom:5px; font-size:.92rem; }
.payment-code p { margin:0 0 12px; color:#666d7d; font-size:.78rem; }
.payment-code textarea,.payment-code input { width:100%; border:1px solid #d9dce5; border-radius:10px; padding:11px; background:#f7f8fa; color:#424958; font-family:Consolas,Monaco,monospace; font-size:.72rem; }
.payment-code textarea { min-height:105px; resize:none; overflow-wrap:anywhere; }
.payment-code .button { margin-top:10px; }
.ticket-code { border-top:1px solid #ded9ff; padding-top:18px; }
.status-screen-shell { margin-top:20px; overflow:hidden; border:1px solid var(--line); border-radius:16px; background:#fff; }
.checkout-success { min-height:460px; display:flex; align-items:center; justify-content:center; flex-direction:column; text-align:center; }
.checkout-success p { color:var(--muted); }
#paymentBrick_container { margin-top:22px; }

.student-page { min-height:calc(100vh - 180px); padding-bottom:70px; }
.student-course-list { display:grid; gap:18px; }
.student-course-card { display:grid; grid-template-columns:210px minmax(0,1fr); overflow:hidden; }
.student-cover { display:flex; align-items:flex-end; padding:20px; color:#fff; }
.student-cover span { font-size:.72rem; font-weight:850; letter-spacing:.08em; text-transform:uppercase; }
.student-course-body { display:grid; grid-template-columns:minmax(0,1fr) 240px auto; align-items:center; gap:28px; padding:24px; }
.student-course-body h2 { margin:9px 0 5px; font-size:1.25rem; }
.student-course-body p { margin:0; color:var(--muted); font-size:.82rem; }
.student-progress > div:first-child { display:flex; justify-content:space-between; margin-bottom:7px; font-size:.76rem; }
.student-progress small { display:block; margin-top:7px; color:#858a98; font-size:.7rem; }
.student-course-actions { display:grid; gap:8px; }

.learning-body { background:#f6f7f9; }
.learning-body .site-footer { display:none; }
.learning-header { position:sticky; top:0; z-index:50; height:70px; display:flex; align-items:center; gap:14px; padding:0 20px; background:var(--ink); color:#fff; }
.dark-icon { border-color:rgba(255,255,255,.14); background:rgba(255,255,255,.08); color:#fff; }
.learning-title { min-width:0; width:min(460px,50vw); margin-left:10px; }
.learning-title strong { display:block; overflow:hidden; margin-bottom:6px; text-overflow:ellipsis; white-space:nowrap; font-size:.78rem; }
.learning-title .progress-track { height:5px; background:rgba(255,255,255,.14); }
.learning-percent { color:var(--lime); font-size:.75rem; }
.learning-grid { min-height:calc(100vh - 70px); display:grid; grid-template-columns:minmax(0,1fr) 360px; }
.lesson-stage { min-width:0; padding-bottom:60px; }
.video-wrap { width:100%; aspect-ratio:16/9; background:#070a12; }
.video-wrap iframe { width:100%; height:100%; border:0; }
.text-lesson { min-height:430px; padding:54px max(6vw,28px); background:#fff; font-size:1.02rem; line-height:1.8; }
.text-lesson > * { max-width:850px; margin-inline:auto; }
.text-lesson h2,.text-lesson h3 { line-height:1.2; letter-spacing:-.035em; }
.file-lesson { min-height:430px; display:flex; align-items:center; justify-content:center; flex-direction:column; padding:30px; background:#101526; color:#fff; text-align:center; }
.file-lesson > span { width:80px; height:80px; display:grid; place-items:center; border-radius:22px; background:var(--primary); font-size:2rem; }
.file-lesson p { color:#aeb4c3; }
.lesson-copy { display:flex; align-items:flex-start; justify-content:space-between; gap:30px; max-width:1040px; margin:0 auto; padding:32px 34px 24px; }
.lesson-copy h1 { margin:0; font-size:clamp(1.6rem,3vw,2.3rem); line-height:1.1; letter-spacing:-.045em; }
.lesson-copy p { margin:10px 0 0; color:var(--muted); }
.lesson-stage > .alert,.exercise-card,.lesson-nav { max-width:972px; margin-inline:auto; }
.exercise-card { margin-top:20px; }
.exercise-card h2 { margin:0 0 18px; font-size:1.15rem; }
.exercise-card .alert { margin-top:14px; }
.options-list { display:grid; gap:8px; margin-bottom:16px; }
.options-list button { display:flex; align-items:center; gap:12px; border:1px solid var(--line); border-radius:12px; padding:12px; background:#fff; color:#4f5666; text-align:left; cursor:pointer; }
.options-list button:hover,.options-list button.selected { border-color:var(--primary); background:#f3f2ff; color:#4f41d3; }
.options-list button span { width:27px; height:27px; display:grid; flex:0 0 auto; place-items:center; border-radius:8px; background:#f0f1f4; font-size:.72rem; font-weight:900; }
.lesson-nav { display:flex; justify-content:space-between; gap:14px; margin-top:26px; padding-top:22px; border-top:1px solid var(--line); }
.button.disabled { pointer-events:none; opacity:.45; }
.course-outline { position:sticky; top:70px; height:calc(100vh - 70px); overflow-y:auto; border-left:1px solid var(--line); background:#fff; }
.outline-head { padding:20px; border-bottom:1px solid var(--line); }
.outline-head h2 { margin:0; font-size:1rem; }
.outline-head p { margin:4px 0 0; color:var(--muted); font-size:.72rem; }
.course-outline details { border-bottom:1px solid var(--line); }
.course-outline summary { display:flex; justify-content:space-between; gap:10px; padding:15px 18px; cursor:pointer; font-size:.78rem; font-weight:850; }
.course-outline summary span { color:#9297a4; }
.outline-lesson { display:flex; align-items:center; gap:10px; padding:11px 16px; color:#5b6271; }
.outline-lesson.active { background:#eeecff; color:#5446dc; }
.outline-lesson > span { width:22px; text-align:center; }
.outline-lesson strong { min-width:0; flex:1; font-size:.74rem; }
.outline-lesson small { color:#999da8; font-size:.65rem; }

.exam-body { background:#eef0f4; }
.exam-body .site-footer { display:none; }
.exam-header { position:sticky; top:0; z-index:50; height:72px; display:flex; align-items:center; gap:18px; padding:0 24px; background:var(--ink); color:#fff; }
.exam-header > div:nth-child(2) { min-width:0; }
.exam-header strong,.exam-header small { display:block; }
.exam-header > div:nth-child(2) strong { font-size:.84rem; }
.exam-header > div:nth-child(2) small { margin-top:3px; color:#9fa5b5; font-size:.68rem; }
.exam-clock { display:flex; align-items:center; gap:8px; margin-left:auto; border:1px solid rgba(255,255,255,.14); border-radius:12px; padding:8px 13px; background:rgba(255,255,255,.07); }
.exam-clock strong { color:var(--lime); font-variant-numeric:tabular-nums; }
.exam-start { display:grid; place-items:center; min-height:calc(100vh - 72px); padding-block:35px; }
.exam-intro { width:min(720px,100%); text-align:center; }
.exam-intro h1 { margin:8px 0; font-size:2.4rem; letter-spacing:-.055em; }
.exam-intro > p { color:var(--muted); }
.exam-shield { width:72px; height:72px; display:grid; place-items:center; margin:0 auto 18px; border-radius:22px; background:#e8f8ee; color:var(--success); font-size:1.9rem; font-weight:900; }
.exam-rules { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin:25px 0; }
.exam-rules div { border-radius:13px; padding:14px; background:#f5f6f8; }
.exam-rules b,.exam-rules span { display:block; }
.exam-rules b { font-size:1.25rem; }
.exam-rules span { margin-top:3px; color:#818694; font-size:.69rem; }
.control-list { display:grid; gap:8px; max-width:510px; margin:0 auto 22px; padding:0; color:#5f6675; text-align:left; list-style:none; font-size:.84rem; }
.control-list li:before { content:'✓'; margin-right:8px; color:var(--success); font-weight:900; }
.exam-intro .consent { max-width:510px; margin:0 auto 20px; text-align:left; }
.exam-intro .alert { margin:18px 0; }
.exam-workspace { min-height:calc(100vh - 72px); display:grid; grid-template-columns:260px minmax(0,1fr); }
.question-nav { border-right:1px solid var(--line); padding:24px; background:#fff; }
.question-nav h2 { margin:0 0 14px; }
.question-nav > div:nth-child(2) { display:grid; grid-template-columns:repeat(5,1fr); gap:7px; }
.question-nav button { aspect-ratio:1; border:1px solid var(--line); border-radius:9px; background:#fff; cursor:pointer; font-size:.74rem; font-weight:850; }
.question-nav button.active { border-color:var(--primary); box-shadow:0 0 0 2px rgba(102,87,248,.13); color:var(--primary); }
.question-nav button.answered { background:#eaf8ef; color:var(--success); }
.question-nav p { margin:20px 0 7px; color:var(--muted); font-size:.72rem; }
.focus-status { display:flex!important; justify-content:space-between; margin-top:28px; border-radius:11px; padding:12px; background:#fff5e8; color:#8a5d1c; font-size:.72rem; }
.question-panel { width:min(850px,calc(100% - 40px)); margin:42px auto; }
.question-top { display:flex; justify-content:space-between; color:#7e8493; font-size:.74rem; font-weight:750; }
.question-panel h1 { margin:24px 0 28px; font-size:clamp(1.5rem,3vw,2.15rem); line-height:1.25; letter-spacing:-.035em; }
.exam-options { display:grid; gap:11px; }
.exam-options button { display:flex; align-items:center; gap:14px; border:1px solid var(--line); border-radius:15px; padding:16px; background:#fff; color:#4d5464; text-align:left; cursor:pointer; }
.exam-options button:hover,.exam-options button.selected { border-color:var(--primary); background:#f4f2ff; color:#4f41d3; }
.exam-options button span { width:34px; height:34px; display:grid; flex:0 0 auto; place-items:center; border-radius:10px; background:#eff0f3; font-size:.78rem; font-weight:900; }
.exam-options button strong { font-size:.88rem; }
.question-panel nav { display:flex; justify-content:space-between; margin-top:28px; }
.exam-result { display:grid; place-items:center; min-height:calc(100vh - 72px); padding-block:35px; }
.exam-result .card { width:min(680px,100%); text-align:center; }
.result-medal { width:78px; height:78px; display:grid; place-items:center; margin:0 auto 18px; border-radius:50%; background:#e8f8ee; color:var(--success); font-size:2.2rem; font-weight:900; }
.exam-result h1 { margin:5px 0; font-size:2rem; }
.score { display:block; margin:20px 0 8px; color:var(--primary); font-size:3.2rem; line-height:1; }
.exam-result p { color:var(--muted); }
.result-actions { display:flex; justify-content:center; flex-wrap:wrap; gap:10px; margin-top:22px; }

.certificate-body { background:#e9ebf0; }
.certificate-body .site-footer { display:none; }
.certificate-page { min-height:100vh; padding:22px; }
.certificate-toolbar { max-width:1120px; display:flex; align-items:center; justify-content:space-between; gap:18px; margin:0 auto 18px; }
.certificate-toolbar > div { display:flex; gap:9px; }
.certificate-sheet { width:min(1120px,100%); aspect-ratio:1.414/1; margin:auto; padding:28px; background:#f8f8fb; box-shadow:0 25px 70px rgba(17,23,42,.16); }
.certificate-frame { position:relative; height:100%; overflow:hidden; border:3px solid var(--primary); padding:7% 8%; background:#fff; }
.certificate-frame:before { content:''; position:absolute; right:-90px; top:-110px; width:260px; height:260px; border:52px solid rgba(102,87,248,.14); border-radius:50%; }
.certificate-brand { color:var(--primary); font-size:1rem; font-weight:900; letter-spacing:.18em; }
.certificate-seal { position:absolute; top:7%; right:8%; width:72px; height:72px; display:grid; place-items:center; border-radius:50%; background:var(--lime); font-size:1.7rem; font-weight:900; }
.certificate-frame .eyebrow { margin-top:6%; }
.certificate-frame h1 { margin:0; font:700 clamp(2.1rem,4vw,4rem)/1.05 Georgia,serif; letter-spacing:-.035em; }
.certificate-frame > p { margin:18px 0 8px; color:#727887; }
.certificate-frame h2 { width:70%; margin:0; padding:0 0 10px; border-bottom:1px solid #d9dce3; color:var(--primary); font:700 clamp(1.7rem,3vw,3rem)/1.15 Georgia,serif; }
.certificate-frame h3 { margin:8px 0 0; font-size:clamp(1.1rem,2vw,1.7rem); }
.certificate-meta { display:flex; gap:38px; margin-top:4%; color:#7a808e; font-size:.7rem; }
.certificate-meta b { display:block; margin-top:3px; color:var(--ink); font-size:.8rem; }
.certificate-qr { position:absolute; right:7%; bottom:7%; display:grid; justify-items:center; color:#777d8a; font-size:.6rem; }
.certificate-qr img { width:108px; height:108px; }
.certificate-signature { position:absolute; left:8%; bottom:7%; display:grid; min-width:220px; border-top:1px solid #aeb2bd; padding-top:6px; font-size:.72rem; text-align:center; }
.certificate-signature span { color:#858a97; }
.verify-page { min-height:calc(100vh - 150px); display:grid; place-items:center; padding-block:50px; }
.verify-card { width:min(650px,100%); text-align:center; }
.verify-icon { width:78px; height:78px; display:grid; place-items:center; margin:0 auto 18px; border-radius:50%; font-size:2rem; font-weight:900; }
.verify-icon.valid { background:#e7f8ed; color:var(--success); }
.verify-icon.invalid { background:#fff0ee; color:var(--danger); }
.verify-card h1 { margin:4px 0; font-size:2rem; }
.verify-card > p { color:var(--muted); }
.verify-card dl { display:grid; grid-template-columns:repeat(2,1fr); margin:25px 0; border:1px solid var(--line); border-radius:14px; overflow:hidden; text-align:left; }
.verify-card dl div { padding:13px; border-bottom:1px solid var(--line); }
.verify-card dt { color:#858a98; font-size:.68rem; font-weight:750; text-transform:uppercase; }
.verify-card dd { margin:3px 0 0; font-size:.85rem; font-weight:800; }
.verify-form { display:flex; gap:9px; margin-top:22px; }

@media print {
    @page { size:A4 landscape; margin:0; }
    .no-print { display:none!important; }
    .certificate-page { padding:0; }
    .certificate-sheet { width:297mm; height:210mm; max-width:none; box-shadow:none; }
}

@media (max-width:900px) {
    .main-nav { display:none; }
    .hero-grid { grid-template-columns:1fr; }
    .hero-panel { max-width:500px; }
    .course-grid,.dashboard-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
    .course-detail-grid,.course-content-grid { grid-template-columns:1fr; gap:30px; }
    .course-buy-card { max-width:480px; }
    .checkout-grid { grid-template-columns:1fr; }
    .checkout-summary { position:static; grid-row:1; }
    .pix-payment { grid-template-columns:1fr; }
    .pix-qr { width:min(240px,100%); margin-inline:auto; }
    .student-course-card { grid-template-columns:130px minmax(0,1fr); }
    .student-course-body { grid-template-columns:1fr; }
    .learning-grid { grid-template-columns:1fr; }
    .course-outline { position:static; height:auto; border-left:0; border-top:1px solid var(--line); }
    .exam-workspace { grid-template-columns:1fr; }
    .question-nav { border-right:0; border-bottom:1px solid var(--line); }
    .question-nav > div:nth-child(2) { max-width:300px; }
}
@media (max-width:640px) {
    .shell { width:min(100% - 28px,1180px); }
    .site-header { height:64px; }
    .user-copy { display:none; }
    .header-actions .button { padding-inline:10px; }
    .hero { padding:55px 0; }
    .hero:after,.hero-panel { display:none; }
    .hero h1 { font-size:2.55rem; }
    .section-heading { align-items:stretch; flex-direction:column; }
    .search-box { width:100%; }
    .course-grid,.dashboard-grid,.field-row { grid-template-columns:1fr; }
    .footer-inner { align-items:flex-start; flex-direction:column; }
    .footer-inner p { margin:0; }
    .auth-body { padding:16px; }
    .auth-card { padding:25px; }
    .student-course-card { grid-template-columns:1fr; }
    .student-cover { min-height:120px; }
    .lesson-copy { align-items:stretch; flex-direction:column; padding:25px 18px; }
    .lesson-stage > .alert,.exercise-card,.lesson-nav { margin-inline:14px; }
    .learning-header .brand span:last-child { display:none; }
    .exam-header .brand span:last-child { display:none; }
    .exam-rules { grid-template-columns:1fr; }
    .question-panel { margin-block:26px; }
    .certificate-page { padding:8px; }
    .certificate-sheet { padding:10px; }
    .certificate-frame { padding:7%; }
    .certificate-frame h2 { width:100%; }
    .certificate-toolbar { align-items:flex-start; }
    .certificate-toolbar > div { flex-direction:column; }
    .certificate-meta { gap:12px; }
    .certificate-qr img { width:68px; height:68px; }
    .certificate-signature { display:none; }
    .verify-card dl { grid-template-columns:1fr; }
    .verify-form { flex-direction:column; }
}

/* Painel administrativo */
.admin-body { overflow-x:hidden; background:#f5f6f9; }
.admin-body .site-footer { display:none; }
.admin-app { min-height:100vh; display:grid; grid-template-columns:245px minmax(0,1fr); }
.admin-sidebar { position:sticky; top:0; z-index:30; height:100vh; display:flex; flex-direction:column; padding:25px 18px; background:#17192b; color:#fff; }
.admin-sidebar .brand { padding:0 10px 22px; color:#fff; }
.admin-sidebar .brand small { margin-left:5px; color:#a8adc5; font-size:.58rem; font-weight:750; letter-spacing:.08em; text-transform:uppercase; }
.admin-sidebar nav { display:grid; gap:5px; margin-top:20px; }
.admin-sidebar nav button { display:flex; align-items:center; gap:11px; width:100%; border:0; border-radius:11px; padding:12px 13px; background:transparent; color:#aeb3c8; font:700 .81rem inherit; text-align:left; cursor:pointer; }
.admin-sidebar nav button span { width:21px; color:#858ba8; text-align:center; }
.admin-sidebar nav button:hover,.admin-sidebar nav button.active { background:#2a2d45; color:#fff; }
.admin-sidebar nav button.active span { color:var(--lime); }
.admin-user { display:grid; grid-template-columns:36px minmax(0,1fr) 24px; align-items:center; gap:9px; margin-top:auto; border-top:1px solid #30334c; padding:18px 6px 0; }
.admin-user .avatar { width:36px; height:36px; display:grid; place-items:center; border-radius:10px; background:var(--primary); font-size:.7rem; font-weight:900; }
.admin-user div { min-width:0; display:grid; }
.admin-user strong,.admin-user small { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.admin-user strong { font-size:.71rem; }
.admin-user small { color:#898fa9; font-size:.59rem; }
.admin-user a { color:#8f95ad; font-size:1rem; text-decoration:none; }
.admin-main { min-width:0; }
.admin-topbar { height:72px; display:flex; align-items:center; gap:11px; border-bottom:1px solid var(--line); padding:0 31px; background:#fff; }
.admin-topbar > div { display:grid; margin-right:auto; }
.admin-topbar > div strong { font-size:.85rem; }
.admin-topbar > div small { color:var(--muted); font-size:.65rem; }
.mobile-menu { display:none; border:0; background:transparent; font-size:1.3rem; cursor:pointer; }
.admin-content { width:min(1280px,100%); margin:auto; padding:34px 32px 55px; }
.admin-heading { display:flex; align-items:flex-end; justify-content:space-between; gap:20px; margin-bottom:25px; }
.admin-heading h1 { margin:2px 0 4px; font-size:2rem; letter-spacing:-.045em; }
.admin-heading p { margin:0; color:var(--muted); font-size:.82rem; }
.admin-metrics { grid-template-columns:repeat(4,minmax(0,1fr)); }
.admin-metrics .metric { min-height:128px; }
.metric-dark { background:#1d2034; color:#fff; }
.metric-dark small,.metric-dark span { color:#989fb9; }
.admin-table-card { margin-top:22px; padding:23px; }
.card-title { display:flex; align-items:center; justify-content:space-between; gap:15px; }
.card-title h2 { margin:0; font-size:1rem; }
.card-title p { margin:4px 0 0; color:var(--muted); font-size:.7rem; }
.table-wrap { overflow:auto; margin-top:17px; }
.table-wrap table { width:100%; border-collapse:collapse; }
.table-wrap th { border-bottom:1px solid var(--line); padding:10px 12px; color:#8b91a0; font-size:.62rem; text-align:left; text-transform:uppercase; }
.table-wrap td { border-bottom:1px solid #eef0f4; padding:13px 12px; font-size:.76rem; }
.table-wrap td strong,.table-wrap td small { display:block; }
.table-wrap td small { margin-top:2px; color:var(--muted); font-size:.62rem; }
.table-action { border:0; background:transparent; color:var(--primary); font-weight:800; cursor:pointer; }
.admin-workspace { display:grid; grid-template-columns:235px minmax(0,1fr); gap:20px; align-items:start; }
.course-picker { overflow:hidden; padding:10px; }
.admin-search { display:flex; align-items:center; gap:7px; margin-bottom:8px; border:1px solid var(--line); border-radius:9px; padding:0 10px; color:#999eaa; }
.admin-search input { width:100%; border:0; outline:0; padding:10px 0; font-size:.7rem; }
.course-picker > button { width:100%; display:grid; grid-template-columns:12px minmax(0,1fr) 12px; align-items:center; gap:9px; border:0; border-radius:10px; padding:11px 9px; background:transparent; text-align:left; cursor:pointer; }
.course-picker > button:hover,.course-picker > button.active { background:#f2f0ff; }
.course-picker > button strong,.course-picker > button small { display:block; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.course-picker > button strong { color:var(--ink); font-size:.68rem; }
.course-picker > button small { margin-top:3px; color:var(--muted); font-size:.57rem; }
.course-picker > button b { color:#a3a8b6; }
.course-dot { width:10px; height:32px; border-radius:4px; }
.course-editor { min-width:0; }
.editor-hero { display:grid; grid-template-columns:155px minmax(0,1fr); gap:22px; padding:17px; }
.editor-cover { min-height:120px; display:flex; align-items:flex-end; border-radius:12px; padding:13px; color:#fff; }
.editor-cover span { border-radius:999px; padding:4px 7px; background:rgba(18,20,35,.65); font-size:.58rem; font-weight:800; }
.editor-hero h2 { margin:8px 0 3px; font-size:1.35rem; }
.editor-hero p { margin:0; color:var(--muted); font-size:.72rem; }
.editor-actions { display:flex; flex-wrap:wrap; gap:7px; margin-top:15px; }
.editor-grid { display:grid; grid-template-columns:minmax(0,1fr) 245px; gap:18px; margin-top:18px; }
.editor-grid > section,.editor-grid > aside { display:grid; align-content:start; gap:18px; }
.card-pad { padding:21px; }
.module-stack { display:grid; gap:10px; margin-top:17px; }
.module-stack details { overflow:hidden; border:1px solid var(--line); border-radius:12px; background:#fff; }
.module-stack summary { display:grid; grid-template-columns:16px 30px minmax(0,1fr) auto; align-items:center; gap:9px; padding:13px; background:#fafbfc; cursor:pointer; list-style:none; }
.module-stack summary::-webkit-details-marker { display:none; }
.module-stack summary .drag { color:#a4a9b5; }
.module-number { width:28px; height:28px; display:grid; place-items:center; border-radius:8px; background:#ebe8ff; color:var(--primary); font-size:.65rem; font-weight:900; }
.module-stack summary strong,.module-stack summary small { display:block; }
.module-stack summary strong { font-size:.72rem; }
.module-stack summary small { margin-top:2px; color:var(--muted); font-size:.58rem; }
.module-stack summary div { display:flex; gap:5px; }
.module-stack summary button,.admin-lessons article button,.question-bank article button { border:0; background:transparent; color:#858b99; font-size:.65rem; cursor:pointer; }
.module-stack summary button:hover,.admin-lessons article button:hover,.question-bank article button:hover { color:var(--primary); }
.admin-lessons { padding:4px 11px 11px 46px; }
.admin-lessons article { display:grid; grid-template-columns:34px minmax(0,1fr) auto auto; align-items:center; gap:8px; border-bottom:1px solid #eff0f3; padding:10px 4px; }
.lesson-type { width:30px; height:27px; display:grid; place-items:center; border-radius:7px; background:#eff0f5; color:#6f7586; font-size:.52rem; font-weight:900; }
.admin-lessons article strong,.admin-lessons article small { display:block; }
.admin-lessons article strong { font-size:.69rem; }
.admin-lessons article small { margin-top:2px; color:var(--muted); font-size:.56rem; }
.add-row,.add-option { width:100%; margin-top:8px; border:1px dashed #cdd0da; border-radius:9px; padding:10px; background:#fff; color:var(--primary); font-size:.65rem; font-weight:800; cursor:pointer; }
.empty-inline { border:1px dashed var(--line); border-radius:10px; padding:20px; color:var(--muted); font-size:.7rem; text-align:center; }
.question-bank > article { display:grid; grid-template-columns:25px minmax(0,1fr) auto auto; align-items:center; gap:8px; border-top:1px solid var(--line); padding:11px 0; }
.question-bank > article:first-of-type { margin-top:14px; }
.question-bank > article > span { width:23px; height:23px; display:grid; place-items:center; border-radius:7px; background:#eeecff; color:var(--primary); font-size:.6rem; font-weight:900; }
.question-bank > article strong { font-size:.69rem; }
.exercise-bank > article > div strong,.exercise-bank > article > div small { display:block; }
.exercise-bank > article > div small { margin-top:3px; color:var(--muted); font-size:.57rem; }
.publish-card dl { margin:14px 0; }
.publish-card dl div { display:flex; justify-content:space-between; border-bottom:1px solid #eff0f3; padding:9px 0; font-size:.68rem; }
.publish-card dt { color:var(--muted); }
.publish-card dd { margin:0; font-weight:850; }
.integration-card > div { display:grid; grid-template-columns:35px minmax(0,1fr) 25px; align-items:center; gap:9px; margin-top:14px; }
.mp-mark { width:34px; height:34px; display:grid; place-items:center; border-radius:9px; background:#e2f4ff; color:#168ed0; font-size:.62rem; font-weight:900; }
.integration-card strong,.integration-card small { display:block; }
.integration-card strong { font-size:.7rem; }
.integration-card small { margin-top:2px; color:var(--muted); font-size:.57rem; }
.integration-card b { width:22px; height:22px; display:grid; place-items:center; border-radius:50%; font-size:.65rem; }
.integration-card .connected { background:#e6f7ec; color:var(--success); }
.integration-card .pending { background:#fff3df; color:#ac6a08; }
.danger-card { border-color:#f4d8d5; }
.danger-card p { color:var(--muted); font-size:.67rem; }
.settings-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.settings-grid p { color:var(--muted); font-size:.72rem; line-height:1.55; }
.settings-grid code,.code-box { overflow-wrap:anywhere; }
.code-box { margin-top:14px; border-radius:9px; padding:11px; background:#f4f5f8; color:#5f6573; font:600 .61rem/1.5 monospace; }
.config-list { display:grid; gap:9px; margin-top:15px; }
.config-list span { display:grid; color:var(--muted); font-size:.65rem; }
.config-list b { color:var(--ink); font-size:.68rem; }
.modal-backdrop { position:fixed; inset:0; z-index:120; display:grid; place-items:center; overflow-y:auto; padding:19px; background:rgba(20,22,38,.62); backdrop-filter:blur(5px); }
.admin-modal { width:min(680px,calc(100% - 30px)); max-height:calc(100vh - 38px); overflow:auto; padding:24px; box-shadow:0 28px 80px rgba(13,16,31,.3); }
.admin-modal > header { display:flex; align-items:flex-start; justify-content:space-between; margin-bottom:19px; }
.admin-modal > header h2 { margin:2px 0 0; font-size:1.35rem; }
.form-stack { display:grid; gap:13px; }
.form-stack label { display:grid; gap:6px; color:#555b68; font-size:.67rem; font-weight:800; }
.form-stack input,.form-stack textarea,.form-stack select { width:100%; border:1px solid #dfe1e7; border-radius:9px; padding:10px 11px; background:#fff; color:var(--ink); font:inherit; outline:0; }
.form-stack input:focus,.form-stack textarea:focus,.form-stack select:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(102,87,248,.1); }
.form-stack textarea { min-height:82px; resize:vertical; }
.form-stack .large-textarea { min-height:190px; }
.form-stack label small { color:var(--muted); font-weight:500; }
.form-stack footer { display:flex; justify-content:flex-end; gap:8px; border-top:1px solid var(--line); margin-top:5px; padding-top:16px; }
.check-label { display:flex!important; grid-column:auto; align-items:center; align-self:end; min-height:41px; }
.check-label input { width:auto; }
.toggle-row { display:flex; align-items:center; justify-content:space-between; gap:15px; border:1px solid var(--line); border-radius:10px; padding:11px 13px; }
.toggle-row strong,.toggle-row small { display:block; }
.toggle-row small { margin-top:2px; color:var(--muted); font-size:.59rem; }
.switch { position:relative; width:42px; height:23px; flex:0 0 auto; border:0; border-radius:999px; background:#cfd2db; cursor:pointer; }
.switch:after { content:''; position:absolute; left:3px; top:3px; width:17px; height:17px; border-radius:50%; background:#fff; transition:.18s; }
.switch.active { background:var(--primary); }
.switch.active:after { transform:translateX(19px); }
.option-editor { display:grid; gap:8px; }
.option-editor label { grid-template-columns:110px minmax(0,1fr) 28px; align-items:center; }
.option-editor label span { display:flex; align-items:center; gap:5px; font-size:.6rem; }
.option-editor label span input { width:auto; }
.option-editor label > button { border:0; background:transparent; color:var(--danger); cursor:pointer; }
.toast { position:fixed; right:24px; bottom:24px; z-index:100; border-radius:11px; padding:12px 16px; background:#1d2034; color:#fff; box-shadow:0 12px 35px rgba(18,22,40,.22); font-size:.72rem; font-weight:750; }

@media (max-width:1050px) {
    .admin-app { grid-template-columns:210px minmax(0,1fr); }
    .editor-grid { grid-template-columns:1fr; }
    .editor-grid > aside { grid-template-columns:repeat(3,minmax(0,1fr)); }
    .settings-grid { grid-template-columns:1fr; }
}
@media (max-width:780px) {
    .admin-app { display:block; }
    .admin-sidebar { position:fixed; left:-255px; width:245px; transition:left .2s; box-shadow:12px 0 35px rgba(0,0,0,.16); }
    .admin-sidebar.open { left:0; }
    .mobile-menu { display:block; }
    .admin-topbar { padding-inline:16px; }
    .admin-topbar > div small,.admin-topbar .button-ghost { display:none; }
    .admin-content { padding:25px 16px 45px; }
    .admin-metrics { grid-template-columns:repeat(2,minmax(0,1fr)); }
    .admin-workspace { grid-template-columns:1fr; }
    .course-picker { display:flex; gap:6px; overflow:auto; }
    .course-picker .admin-search { min-width:170px; margin:0; }
    .course-picker > button { min-width:190px; }
    .editor-grid > aside { grid-template-columns:1fr; }
}
@media (max-width:560px) {
    .admin-heading { align-items:flex-start; flex-direction:column; }
    .admin-metrics { grid-template-columns:1fr; }
    .editor-hero { grid-template-columns:1fr; }
    .editor-cover { min-height:145px; }
    .admin-lessons { padding-left:10px; }
    .field-row { grid-template-columns:1fr; }
    .option-editor label { grid-template-columns:1fr 28px; }
    .option-editor label span { grid-column:1/-1; }
}