:root{--cer-primary:#0ea5e9;--cer-bg:#050d16;--cer-bg2:#08131f;--cer-panel:#0c1825;--cer-panel2:#112233;--cer-panel3:#172b3e;--cer-text:#f6fbff;--cer-muted:#8fa4b6;--cer-soft:#c9d8e4;--cer-border:rgba(255,255,255,.09);--cer-shadow:0 18px 55px rgba(0,0,0,.28);--cer-radius:22px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body.cer-body{margin:0;background:linear-gradient(180deg,#050d16 0,#07111d 100%);color:var(--cer-text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}body.cer-body button,body.cer-body input,body.cer-body textarea,body.cer-body select{font:inherit}body.cer-body a{-webkit-tap-highlight-color:transparent}.cer-app{min-height:100vh}.cer-muted{color:var(--cer-muted)}

/* header */
.cer-topbar{height:62px;display:grid;grid-template-columns:auto minmax(220px,560px) auto;align-items:center;gap:24px;padding:0 max(18px,4vw);border-bottom:1px solid var(--cer-border);background:rgba(4,11,18,.93);position:sticky;top:0;z-index:80;backdrop-filter:blur(18px);box-shadow:0 5px 24px rgba(0,0,0,.18)}
.cer-brand{color:#fff;text-decoration:none;display:flex;align-items:center;gap:11px;font-weight:850;letter-spacing:-.02em;font-size:18px}.cer-brand b{color:var(--cer-primary)}.cer-brand-dot{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,var(--cer-primary),color-mix(in srgb,var(--cer-primary) 72%,#fff));color:#02121c;font-weight:950;box-shadow:0 0 0 1px rgba(255,255,255,.12),0 10px 26px color-mix(in srgb,var(--cer-primary) 30%,transparent)}
.cer-search{height:40px;border-radius:999px;background:#0d1b2a;border:1px solid var(--cer-border);display:flex;align-items:center;padding:0 14px;gap:8px;color:#7890a2}.cer-search input{width:100%;background:transparent;border:0;outline:0;color:#fff;font-size:12px}.cer-search input::placeholder{color:#6f8597}.cer-top-actions{display:flex;gap:10px;align-items:center;justify-content:flex-end;font-size:13px}.cer-user-pill{display:flex;align-items:center;gap:8px;color:#e8f4fb;padding:5px 10px 5px 5px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--cer-border);text-decoration:none;max-width:210px}.cer-user-pill img{width:29px;height:29px;border-radius:50%;object-fit:cover}.cer-user-pill span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cer-logout{color:#b9c9d4;text-decoration:none;padding:8px 10px;border-radius:10px}.cer-logout:hover{color:#fff;background:rgba(255,255,255,.06)}

/* school cover/profile */
.cer-school-cover{height:270px;position:relative;background:radial-gradient(circle at 75% 10%,color-mix(in srgb,var(--cer-primary) 24%,transparent),transparent 36%),linear-gradient(125deg,#0d2a42,#07131f 56%,#102338);background-size:cover;background-position:center;overflow:hidden}.cer-cover-pattern{position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px);background-size:32px 32px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.7),transparent)}.cer-cover-admin{position:absolute;right:max(22px,5vw);bottom:18px;text-decoration:none;color:#fff;background:rgba(4,10,18,.72);border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:9px 12px;font-size:11px;font-weight:800;backdrop-filter:blur(10px)}
.cer-school-profilebar{background:#07121e;border-bottom:1px solid var(--cer-border)}.cer-school-profile-inner{width:min(1180px,calc(100% - 36px));margin:0 auto;display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:20px;align-items:end;min-height:132px;padding:0 0 18px}.cer-school-avatar-wrap{align-self:start;margin-top:-60px;position:relative;z-index:3}.cer-school-avatar{width:122px;height:122px;border-radius:34px;object-fit:cover;border:5px solid #07121e;background:#10243a;box-shadow:0 12px 32px rgba(0,0,0,.35)}.cer-fallback-logo{display:grid;place-items:center;background:linear-gradient(145deg,var(--cer-primary),color-mix(in srgb,var(--cer-primary) 62%,#fff));color:#03131e;font-size:34px;font-weight:950}.cer-school-info{min-width:0}.cer-community-chip{font-size:9px;letter-spacing:.13em;text-transform:uppercase;font-weight:900;color:#a8f0c5;display:flex;align-items:center;gap:6px;margin-bottom:6px}.cer-community-chip span{width:8px;height:8px;border-radius:50%;background:#18d47b;box-shadow:0 0 0 5px rgba(24,212,123,.08)}.cer-school-info h1{margin:0;font-size:35px;letter-spacing:-.04em;line-height:1.08}.cer-school-info p{margin:6px 0 0;color:#c3d1db;font-size:13px;max-width:720px}.cer-school-stats{margin-top:10px;display:flex;align-items:center;gap:8px;color:#8ca2b2;font-size:10px;flex-wrap:wrap}.cer-school-stats strong{color:#dce8ef;font-size:11px}.cer-school-badge{display:flex;align-items:center;gap:10px;background:linear-gradient(145deg,#0e2132,#0b1926);border:1px solid var(--cer-border);border-radius:16px;padding:12px 14px;min-width:230px}.cer-school-badge>span{font-size:28px}.cer-school-badge strong{font-size:12px;display:block}.cer-school-badge small{display:block;color:#8298a8;font-size:9px;margin-top:2px}

/* nav */
.cer-tabs{height:60px;display:flex;align-items:center;gap:8px;padding:0 max(18px,calc((100vw - 1180px)/2));background:#08131f;border-bottom:1px solid var(--cer-border);position:sticky;top:62px;z-index:70}.cer-tabs a{height:42px;padding:0 14px;border-radius:12px;color:#a9bbc8;text-decoration:none;display:flex;align-items:center;gap:8px;font-weight:800;font-size:12px;border:1px solid transparent}.cer-tabs a:hover{color:#fff;background:rgba(255,255,255,.04)}.cer-tabs a.active{background:color-mix(in srgb,var(--cer-primary) 14%,#0b1b28);color:#fff;border-color:color-mix(in srgb,var(--cer-primary) 45%,transparent);box-shadow:0 8px 24px color-mix(in srgb,var(--cer-primary) 10%,transparent)}.cer-tabs a.active span{color:var(--cer-primary)}

/* layout shared */
.cer-main{width:min(1160px,calc(100% - 28px));margin:0 auto;padding:24px 0 74px;display:grid;grid-template-columns:minmax(0,760px) 300px;gap:22px}.cer-feed-col,.cer-side,.cer-wide{min-width:0}.cer-composer,.cer-post,.cer-side-card,.cer-course,.cer-profile-card,.cer-gate-card,.cer-welcome-pack{background:linear-gradient(180deg,#0d1b29,#0a1723);border:1px solid var(--cer-border);border-radius:var(--cer-radius);box-shadow:var(--cer-shadow)}
.cer-side{display:grid;gap:16px;align-content:start;position:sticky;top:144px;height:max-content}.cer-block-title{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:10px;padding:0 4px}.cer-block-title h2{font-size:17px;margin:0}.cer-block-title span{font-size:10px;color:#6f8798}

/* stories / highlights */
.cer-stories-wrap{margin-bottom:17px}.cer-stories{display:grid;grid-auto-flow:column;grid-auto-columns:132px;gap:10px;overflow-x:auto;padding:2px 2px 7px;scrollbar-width:none}.cer-stories::-webkit-scrollbar{display:none}.cer-story{height:154px;border-radius:18px;border:1px solid var(--cer-border);padding:12px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden;color:#fff;text-decoration:none;background:linear-gradient(155deg,#11283b,#091724);background-size:cover;background-position:center;box-shadow:0 10px 28px rgba(0,0,0,.17)}.cer-story:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,10,18,0),rgba(3,10,18,.72));pointer-events:none}.cer-story>*{position:relative;z-index:2}.cer-story>span{position:absolute;top:10px;left:10px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:rgba(5,15,25,.75);border:1px solid rgba(255,255,255,.16)}.cer-story strong{font-size:12px;line-height:1.25}.cer-story small{font-size:9px;color:#c6d4dd;margin-top:4px}.cer-story-special{background:radial-gradient(circle at 75% 15%,color-mix(in srgb,var(--cer-primary) 28%,transparent),transparent 40%),linear-gradient(150deg,#102a3c,#0b1825)}.cer-story-special>span{background:color-mix(in srgb,var(--cer-primary) 18%,#0e2031);color:#fff}.cer-story-post{cursor:default}

/* composer */
.cer-composer{padding:14px;margin-bottom:18px}.cer-composer-top{display:flex;align-items:flex-start;gap:11px;padding:3px 3px 12px}.cer-composer-top img{width:44px;height:44px;object-fit:cover;border-radius:50%;border:1px solid rgba(255,255,255,.14)}.cer-composer textarea{flex:1;min-height:65px;border:0;outline:0;resize:vertical;background:transparent;color:#fff;font-size:15px;line-height:1.45;padding:10px 4px}.cer-composer textarea::placeholder{color:#7f93a2}.cer-composer-row{display:flex;justify-content:space-between;align-items:center;gap:10px;border-top:1px solid var(--cer-border);padding-top:10px}.cer-composer-tools{display:flex;align-items:center;gap:4px;flex-wrap:wrap}.cer-file-btn,.cer-kind-toggle,.cer-coming{cursor:pointer;color:#bfd0dc;background:transparent;border:0;border-radius:10px;padding:8px 9px;font-weight:750;font-size:11px;display:flex;align-items:center;gap:6px}.cer-file-btn:hover,.cer-kind-toggle:hover,.cer-coming:hover{background:rgba(255,255,255,.05);color:#fff}.cer-file-btn input{display:none}.cer-file-btn.active{background:rgba(24,212,123,.08);color:#8fe5b7}.cer-kind-toggle.active{background:rgba(255,187,51,.10);color:#ffd36a}.cer-publish,.cer-form button,.cer-comment-form button,.cer-profile-form button{border:0;background:linear-gradient(135deg,var(--cer-primary),color-mix(in srgb,var(--cer-primary) 78%,#fff));color:#03121c;font-weight:900;border-radius:12px;padding:10px 16px;cursor:pointer;box-shadow:0 10px 24px color-mix(in srgb,var(--cer-primary) 20%,transparent);transition:.16s ease}.cer-publish:hover,.cer-form button:hover,.cer-comment-form button:hover,.cer-profile-form button:hover{transform:translateY(-1px);filter:brightness(1.05)}.cer-publish span{margin-right:4px}.cer-form-msg{font-size:11px;margin-top:8px;color:#bde8ff}

/* welcome pack */
.cer-welcome-pack{padding:18px;display:grid;grid-template-columns:56px 1fr auto;align-items:center;gap:14px}.cer-welcome-icon{width:56px;height:56px;border-radius:17px;display:grid;place-items:center;background:linear-gradient(145deg,var(--cer-primary),#70dbff);color:#04121c;font-weight:950}.cer-welcome-pack h3{margin:3px 0 4px;font-size:18px}.cer-welcome-pack p{margin:0;color:#8fa4b6;font-size:12px;line-height:1.45}.cer-welcome-pack>a{color:#fff;text-decoration:none;background:#102538;border:1px solid var(--cer-border);border-radius:12px;padding:10px 12px;font-size:11px;font-weight:800}

/* posts */
.cer-post{overflow:hidden;margin-bottom:18px;transition:border-color .18s ease,transform .18s ease}.cer-post:hover{border-color:rgba(255,255,255,.13)}.cer-post-notice{box-shadow:0 18px 55px rgba(0,0,0,.24),inset 3px 0 0 color-mix(in srgb,var(--cer-primary) 70%,#ffd166)}.cer-post-head{display:flex;align-items:center;gap:11px;padding:15px 16px 11px}.cer-avatar-img{width:44px;height:44px;border-radius:50%;object-fit:cover;border:1px solid rgba(255,255,255,.13);background:#183047}.cer-post-author{min-width:0;flex:1}.cer-post-author>div{display:flex;align-items:center;gap:8px;min-width:0}.cer-post-author strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cer-post-author small{display:block;color:var(--cer-muted);margin-top:3px;font-size:10px}.cer-official-badge{font-size:8px;font-weight:900;letter-spacing:.04em;text-transform:uppercase;color:#06121a;background:#ffd66b;border-radius:999px;padding:4px 7px;white-space:nowrap}.cer-post-more{margin-left:auto;background:transparent;border:0;color:#8499a9;letter-spacing:1px;font-size:17px;cursor:default;padding:6px}.cer-post-body{padding:2px 16px 12px;line-height:1.56;color:#e9f0f5;font-size:14px}.cer-post-body p{margin:0 0 10px}.cer-post-body p:last-child{margin-bottom:0}.cer-post-image-btn{width:100%;display:block;padding:0;border:0;background:#06101a;position:relative;cursor:zoom-in}.cer-post-image{width:100%;height:min(520px,62vw);min-height:250px;display:block;object-fit:cover;border-top:1px solid var(--cer-border);border-bottom:1px solid var(--cer-border)}.cer-post-image-btn>span{position:absolute;right:12px;bottom:12px;background:rgba(4,10,18,.78);color:#fff;border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:7px 10px;font-size:9px;font-weight:800;backdrop-filter:blur(9px)}.cer-post-meta{display:flex;justify-content:space-between;align-items:center;padding:9px 16px;color:#8196a6;font-size:10px}.cer-post-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:7px 12px;border-top:1px solid var(--cer-border)}.cer-post-actions button{background:transparent;border:0;color:#b8c9d4;padding:9px 8px;border-radius:10px;cursor:pointer;font-weight:700;font-size:11px;display:flex;align-items:center;justify-content:center;gap:7px}.cer-post-actions button:hover{background:rgba(255,255,255,.05);color:#fff}.cer-post-actions .cer-like.active{color:#ff6f91;background:rgba(251,113,133,.08)}.cer-action-icon{font-size:16px}.cer-comments{padding:4px 14px 14px;border-top:1px solid rgba(255,255,255,.04)}.cer-comment{display:flex;align-items:flex-start;gap:8px;margin:9px 0}.cer-comment>img{width:30px;height:30px;border-radius:50%;object-fit:cover;margin-top:2px}.cer-comment>div{background:var(--cer-panel2);border-radius:14px;padding:8px 11px;line-height:1.35;min-width:0}.cer-comment strong{display:block;font-size:11px;margin-bottom:2px}.cer-comment span{font-size:12px;color:#c8d5de}.cer-comment-form{display:grid;grid-template-columns:32px 1fr auto;align-items:center;gap:8px;margin-top:10px}.cer-comment-form>img{width:32px;height:32px;border-radius:50%;object-fit:cover}.cer-comment-form input{min-width:0;background:#0a1622;color:#fff;border:1px solid var(--cer-border);border-radius:14px;padding:10px 12px;outline:0}.cer-comment-form button{padding:9px 12px;font-size:10px}.cer-comment-pending{font-size:10px;color:#f1c76e;padding:6px 40px}

/* sidebar */
.cer-side-card{padding:16px}.cer-side-card h3{margin:0 0 11px;font-size:15px}.cer-side-card>a{display:flex;align-items:center;gap:10px;color:#e8f4fb;text-decoration:none;padding:11px 0;border-bottom:1px solid var(--cer-border)}.cer-side-card>a:last-child{border-bottom:0}.cer-side-card>a>span:nth-child(2){min-width:0;flex:1;display:flex;flex-direction:column}.cer-side-card>a strong{font-size:12px}.cer-side-card>a small{color:#7f95a4;font-size:10px;margin-top:2px}.cer-side-card>a>b{font-size:20px;color:#758c9c}.cer-side-icon{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:color-mix(in srgb,var(--cer-primary) 12%,#102235);color:var(--cer-primary);font-weight:850;flex:0 0 auto}.cer-me-card{padding:14px}.cer-me-top{display:flex;align-items:center;gap:10px;margin-bottom:8px}.cer-me-top img{width:48px;height:48px;border-radius:50%;object-fit:cover}.cer-me-top div{min-width:0;display:flex;flex-direction:column}.cer-me-top strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cer-me-top span{font-size:10px;color:var(--cer-muted);margin-top:2px}.cer-me-bio{font-size:11px;color:#a7bac7;line-height:1.4}.cer-mini-stats{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin:10px 0}.cer-mini-stats span{background:#091724;border:1px solid rgba(255,255,255,.05);border-radius:12px;padding:9px;display:flex;flex-direction:column}.cer-mini-stats strong{font-size:15px}.cer-mini-stats small{font-size:8px;color:#7790a1;text-transform:uppercase;letter-spacing:.08em}.cer-me-card>a{padding:9px 3px 2px;border:0;font-size:11px;color:var(--cer-primary);font-weight:800;justify-content:space-between}.cer-notice-card{background:linear-gradient(145deg,color-mix(in srgb,var(--cer-primary) 10%,#0d1b29),#0c1825)}.cer-eyebrow{font-size:9px;letter-spacing:.16em;font-weight:900;color:var(--cer-primary)}.cer-notice-card p{color:#d1dce4;line-height:1.5;font-size:12px}.cer-notice-card>a{font-size:11px;font-weight:800;color:var(--cer-primary);justify-content:space-between}.cer-safe-card{display:flex;gap:11px;align-items:flex-start;background:linear-gradient(145deg,#0b1c25,#0c1825)}.cer-safe-card h3{margin:2px 0 5px}.cer-safe-card p{margin:0;color:#849baa;font-size:11px;line-height:1.45}.cer-safe-icon{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;background:rgba(24,212,123,.09);flex:0 0 auto}

/* section / learning */
.cer-section-intro{grid-column:1/-1;display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin:4px 2px 20px}.cer-section-intro h2{font-size:31px;line-height:1.1;margin:6px 0 4px;letter-spacing:-.035em}.cer-section-intro p{margin:0;color:var(--cer-muted);font-size:13px}.cer-safe-chip{white-space:nowrap;border:1px solid var(--cer-border);border-radius:999px;padding:8px 11px;color:#9fb0bc;background:rgba(255,255,255,.03);font-size:10px}.cer-wide{grid-column:1/-1}.cer-learning-shortcuts{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}.cer-learning-shortcuts article{background:#0d1b29;border:1px solid var(--cer-border);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:3px}.cer-learning-shortcuts span{font-size:23px}.cer-learning-shortcuts strong{font-size:12px}.cer-learning-shortcuts small{font-size:9px;color:#8096a6}.cer-course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.cer-course{overflow:hidden;min-height:320px;display:flex;flex-direction:column;transition:.18s ease}.cer-course:hover{transform:translateY(-3px);border-color:rgba(255,255,255,.15)}.cer-course>img,.cer-course-cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:linear-gradient(145deg,color-mix(in srgb,var(--cer-primary) 18%,#11243a),#112333);display:grid;place-items:center;font-size:42px;color:var(--cer-primary)}.cer-course-body{padding:16px;display:flex;flex-direction:column;flex:1}.cer-course-label{font-size:9px;color:var(--cer-primary);font-weight:850;letter-spacing:.12em}.cer-course h3{margin:7px 0;font-size:19px}.cer-course p{color:#98aaba;font-size:12px;line-height:1.5;margin:0 0 14px}.cer-course-open{margin-top:auto;font-size:11px;font-weight:800}.cer-course-empty{grid-column:1/-1;min-height:240px;display:grid;place-items:center;align-content:center;gap:7px}.cer-course-empty>span{font-size:38px}

/* chat */
.cer-chat-layout{grid-column:1/-1;display:grid;grid-template-columns:330px 1fr;min-height:650px;background:#e9e4da;border:1px solid var(--cer-border);border-radius:24px;overflow:hidden;box-shadow:var(--cer-shadow)}.cer-contacts{padding:15px;border-right:1px solid rgba(0,0,0,.08);overflow:auto;background:#0b1825;color:#fff}.cer-chat-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:11px}.cer-chat-title h3{margin:3px 0 0;font-size:20px}.cer-safe-mini{font-size:10px;color:#89a3b4;background:rgba(255,255,255,.05);border:1px solid var(--cer-border);padding:7px 9px;border-radius:12px}.cer-contact-search{display:flex;align-items:center;gap:7px;background:#112132;border:1px solid var(--cer-border);border-radius:13px;padding:0 10px;margin-bottom:8px;color:#71899a}.cer-contact-search input{height:42px;flex:1;min-width:0;background:transparent;border:0;outline:0;color:#fff;font-size:12px}.cer-contact-hint{font-size:10px;margin:8px 3px 10px}.cer-contact-list{display:grid;gap:3px}.cer-contact{width:100%;display:flex;gap:10px;align-items:center;text-align:left;background:transparent;border:0;color:#fff;padding:9px;border-radius:14px;cursor:pointer;transition:.15s ease}.cer-contact:hover,.cer-contact.active{background:#122536}.cer-contact.active{box-shadow:inset 3px 0 0 var(--cer-primary)}.cer-contact>img{width:44px;height:44px;border-radius:50%;object-fit:cover}.cer-contact>span{min-width:0;flex:1}.cer-contact strong{font-size:12px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cer-contact small{display:block;color:var(--cer-muted);margin-top:2px;font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cer-contact i{width:8px;height:8px;background:#18d47b;border-radius:50%}.cer-no-contacts{font-size:11px;line-height:1.5;color:#7f95a4;padding:14px}.cer-chat-pane{display:flex;flex-direction:column;min-width:0;background:#e8e2d7;color:#14202a;position:relative}.cer-chat-pane:before{content:"";position:absolute;inset:0;opacity:.09;background-image:radial-gradient(circle at 25px 25px,#53606a 2px,transparent 3px),linear-gradient(45deg,transparent 47%,#53606a 49%,#53606a 51%,transparent 53%);background-size:90px 90px,140px 140px;pointer-events:none}.cer-chat-empty{margin:auto;text-align:center;color:#61717d;max-width:370px;padding:30px;position:relative;z-index:2}.cer-chat-empty-icon{width:64px;height:64px;border-radius:22px;margin:0 auto 14px;display:grid;place-items:center;background:#fff;color:#0a9f7a;font-size:30px;box-shadow:0 10px 30px rgba(0,0,0,.08)}.cer-chat-empty strong{display:block;color:#26333b;margin-bottom:6px}.cer-chat-empty p{font-size:12px;line-height:1.5}.cer-chat-head{padding:12px 16px;border-bottom:1px solid rgba(0,0,0,.08);display:flex;align-items:center;justify-content:space-between;background:#f3f0eb;position:relative;z-index:3}.cer-chat-head strong{font-size:13px}.cer-chat-head>div>span{display:block;color:#71808a;font-size:10px;margin-top:2px}.cer-chat-head i{display:inline-block;width:7px;height:7px;background:#18c780;border-radius:50%;margin-right:5px}.cer-chat-messages{flex:1;padding:20px;overflow:auto;position:relative;z-index:2}.cer-msg{max-width:72%;padding:9px 11px;margin:7px 0;border-radius:8px 8px 8px 2px;background:#fff;font-size:13px;line-height:1.45;box-shadow:0 2px 7px rgba(0,0,0,.08)}.cer-msg.mine{margin-left:auto;background:#d8f7d1;border-radius:8px 8px 2px 8px}.cer-msg small{display:block;font-size:8px;color:#849199;margin-top:4px;text-align:right}.cer-msg audio{width:260px;max-width:100%}.cer-report{font-size:8px;color:#b46464;cursor:pointer;margin-left:8px}.cer-chat-form{display:grid;grid-template-columns:1fr auto;gap:8px;padding:10px;background:#f1efeb;border-top:1px solid rgba(0,0,0,.08);position:relative;z-index:3}.cer-chat-form textarea{resize:none;min-height:48px;max-height:120px;border:0;outline:0;background:#fff;color:#17222a;border-radius:22px;padding:13px 16px;font-size:13px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.06)}.cer-chat-action{width:48px;height:48px;border-radius:50%;border:0;background:#13b98a;color:#fff;font-size:18px;cursor:pointer;display:grid;place-items:center;box-shadow:0 8px 20px rgba(19,185,138,.24)}.cer-chat-action.is-send{background:#149fe6}.cer-chat-action.recording{animation:cerPulse 1s infinite;background:#ef5168}.cer-record-status{grid-column:1/-1;color:#ae4655;font-size:10px;padding-left:8px}

/* profile */
.cer-profile{grid-column:1/-1;display:grid;place-items:center}.cer-profile-card{width:min(760px,100%);overflow:hidden}.cer-profile-cover{height:230px;background:radial-gradient(circle at 75% 10%,color-mix(in srgb,var(--cer-primary) 35%,transparent),transparent 40%),linear-gradient(135deg,#12283c,#0b1b29);background-size:cover;background-position:center}.cer-profile-main{padding:0 28px 28px;position:relative}.cer-profile-avatar{width:132px;height:132px;border-radius:50%;object-fit:cover;border:6px solid var(--cer-panel);margin-top:-66px;box-shadow:0 12px 30px rgba(0,0,0,.25)}.cer-profile-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-end;margin-top:-8px}.cer-profile-status{display:inline-block;color:#8fe5b7;font-size:9px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.cer-profile h2{margin:5px 0 0;font-size:30px}.cer-profile-head p{margin:4px 0 0;color:#b6c6d1;font-size:12px}.cer-profile-edit-toggle{border:1px solid var(--cer-border);background:#102233;color:#fff;border-radius:12px;padding:9px 12px;font-weight:800;cursor:pointer}.cer-profile-bio{max-width:640px;color:#c4d0d8;line-height:1.5;font-size:13px}.cer-profile-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:20px 0 16px}.cer-profile-stats span{padding:13px;background:#091724;border:1px solid var(--cer-border);border-radius:14px;display:flex;flex-direction:column}.cer-profile-stats strong{font-size:18px}.cer-profile-stats small{font-size:8px;color:var(--cer-muted);margin-top:3px;text-transform:uppercase;letter-spacing:.08em}.cer-profile-form{display:grid;gap:11px;background:#091724;border:1px solid var(--cer-border);border-radius:16px;padding:15px;margin:15px 0}.cer-profile-form label{display:grid;gap:5px;font-size:10px;color:#93a6b4;font-weight:800}.cer-profile-form input[type=text],.cer-profile-form textarea{background:#0d1d2b;border:1px solid var(--cer-border);border-radius:12px;padding:10px;color:#fff;outline:0}.cer-profile-file-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.cer-profile-file-row label{background:#0d1d2b;border:1px solid var(--cer-border);border-radius:12px;padding:10px}.cer-profile-form button{justify-self:start}.cer-profile-actions{display:flex;gap:9px}.cer-profile-actions a{background:#102233;border:1px solid var(--cer-border);color:#e6f2f8;text-decoration:none;border-radius:12px;padding:10px 14px;font-size:11px;font-weight:800}.cer-profile-actions a:first-child{background:var(--cer-primary);color:#03121b;border-color:transparent}

/* gate/hub/lightbox */
.cer-gate{max-width:1020px;margin:30px auto;padding:0 20px 70px}.cer-gate-card{padding:28px}.cer-gate-card>h2{font-size:30px;margin:8px 0}.cer-gate-card>p{color:#9eb0bd}.cer-gate-badge{display:inline-block;font-size:9px;letter-spacing:.14em;font-weight:900;color:#9fe7bf;background:rgba(24,212,123,.08);border:1px solid rgba(24,212,123,.12);padding:7px 9px;border-radius:999px}.cer-gate-cols{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:24px}.cer-gate-cols>div{background:#091522;border:1px solid var(--cer-border);border-radius:18px;padding:20px}.cer-gate-cols h3{margin-top:0}.cer-form{display:grid;gap:10px}.cer-form input,.cer-form select{width:100%;padding:12px;border-radius:12px;border:1px solid var(--cer-border);background:#0d1c2a;color:#fff;outline:0}.cer-empty{padding:32px;border:1px dashed var(--cer-border);border-radius:18px;color:var(--cer-muted);text-align:center;background:rgba(255,255,255,.015)}.cer-footer{text-align:center;color:#5f7585;padding:20px 20px 34px;font-size:10px}.cer-footer span{color:var(--cer-primary)}.cer-hub-wrap{max-width:1000px;margin:8vh auto;padding:30px}.cer-hub-wrap h1{font-size:54px;margin:16px 0 6px}.cer-hub-wrap>p{font-size:20px;color:var(--cer-muted)}.cer-brand-mark{width:72px;height:72px;border-radius:22px;background:var(--cer-primary);color:#04131e;display:grid;place-items:center;font-size:28px;font-weight:900}.cer-school-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:38px}.cer-school-card{background:var(--cer-panel);border:1px solid var(--cer-border);border-radius:20px;padding:20px;color:#fff;text-decoration:none;display:flex;flex-direction:column;gap:10px}.cer-school-card img,.cer-school-avatar{object-fit:cover}.cer-school-grid .cer-school-card img,.cer-school-grid .cer-school-avatar{width:62px;height:62px;border-radius:16px}.cer-lightbox{position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.88);display:grid;place-items:center;padding:30px}.cer-lightbox[hidden]{display:none}.cer-lightbox img{max-width:min(1100px,94vw);max-height:90vh;object-fit:contain;border-radius:16px;box-shadow:0 22px 80px rgba(0,0,0,.55)}.cer-lightbox button{position:absolute;right:24px;top:18px;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(0,0,0,.45);color:#fff;font-size:27px;cursor:pointer}
.cer-mobile-nav{display:none}@keyframes cerPulse{50%{transform:scale(1.06);box-shadow:0 0 0 10px rgba(239,81,104,.11)}}

@media(max-width:980px){.cer-main{grid-template-columns:minmax(0,1fr) 270px}.cer-school-badge{display:none}.cer-school-profile-inner{grid-template-columns:auto 1fr}.cer-learning-shortcuts{grid-template-columns:repeat(2,1fr)}}
@media(max-width:860px){.cer-topbar{grid-template-columns:auto 1fr auto}.cer-search{display:none}.cer-main{grid-template-columns:1fr;padding:16px 0 88px;width:min(100% - 20px,720px)}.cer-side{display:none}.cer-school-cover{height:205px}.cer-school-profile-inner{width:calc(100% - 24px);min-height:115px;gap:14px}.cer-school-avatar{width:96px;height:96px;border-radius:28px}.cer-school-avatar-wrap{margin-top:-48px}.cer-school-info h1{font-size:29px}.cer-tabs{display:none}.cer-mobile-nav{position:fixed;left:10px;right:10px;bottom:10px;height:66px;display:grid;grid-template-columns:repeat(5,1fr);background:rgba(8,19,30,.97);border:1px solid rgba(255,255,255,.11);border-radius:20px;z-index:90;box-shadow:0 18px 55px rgba(0,0,0,.45);backdrop-filter:blur(18px);padding:6px}.cer-mobile-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:#7f95a4;text-decoration:none;border-radius:14px;font-size:16px}.cer-mobile-nav a b{font-size:8px}.cer-mobile-nav a.active{background:color-mix(in srgb,var(--cer-primary) 14%,transparent);color:var(--cer-primary)}.cer-course-grid{grid-template-columns:1fr 1fr}.cer-chat-layout{grid-template-columns:1fr;min-height:72vh}.cer-contacts{border-right:0;border-bottom:1px solid var(--cer-border);max-height:250px}.cer-gate-cols{grid-template-columns:1fr}.cer-school-grid{grid-template-columns:1fr 1fr}.cer-footer{padding-bottom:92px}}
@media(max-width:560px){.cer-topbar{height:54px;padding:0 11px;gap:8px}.cer-brand{font-size:14px}.cer-brand-dot{width:31px;height:31px;border-radius:10px}.cer-user-pill{padding:3px}.cer-user-pill span{display:none}.cer-user-pill img{width:28px;height:28px}.cer-logout{font-size:10px;padding:6px}.cer-school-cover{height:155px}.cer-cover-admin{right:12px;bottom:10px;padding:7px 9px}.cer-school-profilebar{padding-bottom:2px}.cer-school-profile-inner{width:calc(100% - 20px);min-height:108px;gap:11px;padding-bottom:13px}.cer-school-avatar{width:78px;height:78px;border-radius:23px;border-width:4px}.cer-school-avatar-wrap{margin-top:-39px}.cer-community-chip{font-size:7px;margin-bottom:4px}.cer-school-info h1{font-size:22px}.cer-school-info p{font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:68vw}.cer-school-stats{font-size:8px;margin-top:6px;gap:5px}.cer-school-stats span:nth-last-child(-n+2){display:none}.cer-main{width:100%;padding:12px 8px 82px}.cer-block-title{padding:0 3px}.cer-block-title h2{font-size:15px}.cer-block-title span{font-size:8px}.cer-stories{grid-auto-columns:106px;gap:8px}.cer-story{height:124px;border-radius:16px;padding:10px}.cer-story>span{width:30px;height:30px;top:8px;left:8px}.cer-story strong{font-size:10px}.cer-story small{font-size:8px}.cer-composer{padding:10px;border-radius:17px;margin-bottom:13px}.cer-composer-top{gap:8px}.cer-composer-top img{width:37px;height:37px}.cer-composer textarea{min-height:54px;font-size:13px;padding-top:7px}.cer-composer-row{align-items:flex-end}.cer-file-btn,.cer-kind-toggle,.cer-coming{padding:7px 6px;font-size:9px}.cer-coming{display:none}.cer-publish{padding:9px 12px;font-size:10px}.cer-welcome-pack{grid-template-columns:44px 1fr;padding:13px}.cer-welcome-icon{width:44px;height:44px}.cer-welcome-pack>a{display:none}.cer-welcome-pack h3{font-size:15px}.cer-welcome-pack p{font-size:10px}.cer-post{border-radius:16px;margin-bottom:12px}.cer-post-head{padding:11px}.cer-avatar-img{width:38px;height:38px}.cer-post-author strong{font-size:11px}.cer-post-author small{font-size:8px}.cer-official-badge{font-size:7px}.cer-post-body{padding:0 11px 9px;font-size:13px}.cer-post-image{height:min(380px,88vw);min-height:190px}.cer-post-image-btn>span{font-size:8px;padding:6px 8px}.cer-post-meta{padding:8px 11px;font-size:8px}.cer-post-actions{padding:5px 6px}.cer-post-actions button{font-size:9px;padding:8px 3px}.cer-copy-post{display:none!important}.cer-comment-form{grid-template-columns:28px 1fr auto}.cer-comment-form>img{width:28px;height:28px}.cer-comment-form input{font-size:10px}.cer-section-intro{align-items:flex-start;margin:0 4px 14px}.cer-section-intro h2{font-size:25px}.cer-safe-chip{display:none}.cer-learning-shortcuts{grid-template-columns:1fr 1fr;gap:8px}.cer-learning-shortcuts article{padding:11px}.cer-course-grid{grid-template-columns:1fr}.cer-course{min-height:0}.cer-course-body{padding:14px}.cer-chat-layout{border-radius:0;border-left:0;border-right:0;min-height:calc(100vh - 190px)}.cer-contacts{padding:10px;max-height:210px}.cer-chat-title h3{font-size:18px}.cer-chat-messages{padding:10px}.cer-msg{max-width:86%;font-size:11px}.cer-chat-form{padding:8px;gap:6px;position:sticky;bottom:0}.cer-chat-form textarea{min-height:44px;font-size:12px;padding:12px 14px}.cer-chat-action{width:44px;height:44px}.cer-profile{padding:0 8px}.cer-profile-card{border-radius:18px}.cer-profile-cover{height:145px}.cer-profile-main{padding:0 14px 18px}.cer-profile-avatar{width:96px;height:96px;margin-top:-48px;border-width:4px}.cer-profile-head{align-items:flex-start}.cer-profile h2{font-size:23px}.cer-profile-edit-toggle{font-size:9px;padding:8px 10px}.cer-profile-stats{gap:6px}.cer-profile-stats span{padding:10px}.cer-profile-stats strong{font-size:15px}.cer-profile-file-row{grid-template-columns:1fr}.cer-profile-actions{flex-direction:column}.cer-profile-actions a{text-align:center}.cer-gate{padding:0 10px 80px}.cer-gate-card{padding:18px;border-radius:18px}.cer-gate-card>h2{font-size:25px}.cer-gate-cols>div{padding:15px}.cer-mobile-nav{left:7px;right:7px;bottom:7px;height:61px;border-radius:18px}}

/* v0.4.0 — Social App Pro / acesso simples */
.cer-brand-logo{width:40px;height:40px;border-radius:50%;object-fit:cover;filter:drop-shadow(0 8px 18px rgba(18,199,255,.22))}.cer-school-cover:not([style]){background-image:linear-gradient(180deg,rgba(2,8,18,.04),rgba(2,8,18,.76)),url('default-school-cover.svg');background-size:cover;background-position:center}.cer-gate{max-width:1120px}.cer-gate-card{padding:34px;background:linear-gradient(180deg,rgba(13,29,43,.97),rgba(8,19,30,.98));box-shadow:0 28px 80px rgba(0,0,0,.32)}.cer-gate-card>h2{font-size:34px;letter-spacing:-.035em}.cer-gate-card>p{max-width:700px;line-height:1.55}.cer-gate-cols{gap:18px}.cer-access-card{position:relative;overflow:hidden}.cer-access-card:before{content:"";position:absolute;width:180px;height:180px;border-radius:50%;right:-90px;top:-110px;background:radial-gradient(circle,color-mix(in srgb,var(--cer-primary) 22%,transparent),transparent 66%);pointer-events:none}.cer-access-icon{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:color-mix(in srgb,var(--cer-primary) 16%,#0a1927);border:1px solid color-mix(in srgb,var(--cer-primary) 26%,transparent);color:#dff9ff;font-size:18px;margin-bottom:14px}.cer-access-card h3{font-size:20px;margin:0 0 5px}.cer-access-card>p{color:#8198aa;font-size:11px;line-height:1.5;margin:0 0 16px}.cer-form{gap:11px}.cer-form input,.cer-form select{min-height:48px;padding:13px 14px;background:#0b1926;border-color:rgba(255,255,255,.1);font-size:13px;transition:.16s ease}.cer-form input:focus,.cer-form select:focus{border-color:color-mix(in srgb,var(--cer-primary) 70%,#fff);box-shadow:0 0 0 3px color-mix(in srgb,var(--cer-primary) 10%,transparent)}.cer-primary-btn{min-height:48px;font-size:13px}.cer-password-wrap{position:relative}.cer-password-wrap input{padding-right:48px}.cer-password-toggle{position:absolute!important;right:5px;top:5px;width:38px;height:38px;padding:0!important;border-radius:10px!important;background:transparent!important;color:#8ca3b5!important;box-shadow:none!important}.cer-password-toggle:hover{background:rgba(255,255,255,.05)!important;transform:none!important}.cer-remember{display:flex;align-items:center;gap:8px;color:#91a5b5;font-size:11px}.cer-remember input{width:16px!important;height:16px!important;min-height:0!important}.cer-gate-note{display:block;color:#6f8798;font-size:9px;line-height:1.45}.cer-invite-details{border:1px dashed rgba(255,255,255,.1);border-radius:12px;padding:9px 11px;color:#8196a6;font-size:10px}.cer-invite-details summary{cursor:pointer;font-weight:800}.cer-invite-details[open] summary{margin-bottom:9px}.cer-request-connected{max-width:440px;margin-top:18px}.cer-form-msg{min-height:14px}.cer-form-msg:not(:empty){padding:9px 10px;border-radius:10px;background:rgba(14,165,233,.08);border:1px solid rgba(14,165,233,.14)}

@media(max-width:560px){.cer-brand-logo{width:32px;height:32px}.cer-gate{padding:0 8px 82px;margin-top:16px}.cer-gate-card{padding:16px 14px;border-radius:18px}.cer-gate-card>h2{font-size:24px;line-height:1.12}.cer-gate-card>p{font-size:11px;margin-bottom:0}.cer-gate-cols{margin-top:16px;gap:12px}.cer-gate-cols>div{padding:14px;border-radius:16px}.cer-access-icon{width:34px;height:34px;margin-bottom:10px}.cer-access-card h3{font-size:17px}.cer-access-card>p{font-size:10px;margin-bottom:12px}.cer-form input,.cer-form select{min-height:46px;font-size:12px}.cer-primary-btn{min-height:46px}.cer-school-cover{height:170px}.cer-school-profile-inner{align-items:end}.cer-school-info h1{font-size:23px;line-height:1.05}.cer-school-info p{max-width:64vw}}
.cer-welcome-logo{padding:0!important;overflow:hidden;background:#071522!important}.cer-welcome-logo img{width:100%;height:100%;display:block;object-fit:cover}.cer-hub-logo{width:78px;height:78px;border-radius:50%;box-shadow:0 16px 36px rgba(14,165,233,.18)}

.cer-hub-logo{width:118px;height:118px;object-fit:cover;border-radius:28px;box-shadow:0 18px 50px rgba(0,174,255,.24)}.cer-invite-recognized{padding:10px 12px;border-radius:12px;background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.25);color:#9cf2c9;font-size:11px;font-weight:800}