:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#f6f7fa;background:#0b0d12;font-size:15px}*{box-sizing:border-box}body{margin:0;background:#0b0d12;color:#f6f7fa}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}input,textarea{outline:none}h1,h2,p{margin-top:0}h1{font-size:clamp(2rem,4vw,3.4rem);letter-spacing:-.055em;line-height:1.08}h2{font-size:1.2rem;letter-spacing:-.025em}.shell{display:grid;grid-template-columns:245px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;border-right:1px solid #242830;padding:30px 18px;display:flex;flex-direction:column}.logo{font-size:1.7rem;font-weight:800;letter-spacing:-.075em;padding:0 14px}.logo span,.mobile-logo span{color:#c6bdff}.sidebar-caption,.eyebrow{color:#ad9df4;font-weight:700;font-size:.72rem;letter-spacing:.17em}.sidebar-caption{margin:48px 14px 16px}.sidebar nav{display:grid;gap:5px}.sidebar nav a{display:flex;align-items:center;gap:14px;border-radius:13px;padding:13px 14px;color:#e6e8f0;font-size:.95rem}.sidebar nav a:hover{background:#1c202a}.sidebar nav a::first-letter{font-size:1.3rem}.sidebar-bottom{margin-top:auto;border-top:1px solid #242830;padding:18px 14px 0;display:grid;gap:7px}.sidebar-bottom small{color:#abb0bc}.ghost,.text-button{border:0;background:none;color:#c5baff;padding:8px 0;text-align:left}.main{min-width:0}.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #242830;padding:0 clamp(20px,4vw,58px);color:#bfc3cf}.top-account{color:#f4f5f8;font-weight:600}.content{max-width:1240px;margin:auto;padding:50px clamp(18px,4vw,58px) 90px}.lead{color:#b4b9c6;max-width:680px;line-height:1.7;font-size:1.07rem;margin-bottom:32px}.card{background:#151920;border:1px solid #2b303b;border-radius:20px;padding:26px;margin-bottom:18px}.card p{color:#d5d8df;line-height:1.6}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px;margin-bottom:16px}.stats .card{margin:0}.stats small,.card small{display:block;color:#aeb4c1}.stats strong{display:block;font-size:2rem;margin-top:13px;letter-spacing:-.05em}.actions,.scope{display:flex;gap:10px;flex-wrap:wrap}.primary,.secondary{border-radius:11px;min-height:42px;padding:11px 17px;font-weight:650}.primary{background:#675dee;color:white;border:1px solid #8178ff}.primary:hover{background:#7b73fa}.secondary{background:#252936;color:#f6f7fa;border:1px solid #343a49}.link{display:inline-flex;align-items:center}.scope{margin:25px 0}.scope a{border:1px solid #343a49;border-radius:12px;padding:11px 17px;color:#d3d7e1}.scope a.selected{background:#383153;color:#fff;border-color:#7568b9}.table-card{overflow:auto}table{width:100%;border-collapse:collapse;text-align:left}th,td{padding:14px 12px;border-bottom:1px solid #303641}th{font-size:.8rem;color:#b8bfcd;font-weight:550;white-space:nowrap}td{line-height:1.4}td:nth-child(3){color:#b2bbca}.mine{background:#242039}.feed{max-width:700px}.composer label,.card label{display:block;font-weight:650;margin-bottom:12px}.composer textarea,.card textarea,.auth input{width:100%;background:#1d222b;border:1px solid #3a4350;border-radius:13px;color:#fff;padding:15px;min-height:105px;resize:vertical;font-size:16px}.composer button{margin-top:12px}.post{padding:20px 0;border-bottom:1px solid #303641}.post-head{display:flex;align-items:center;gap:11px;margin-bottom:16px}.post-head small{display:block;color:#aeb5c2;margin-top:4px}.avatar{display:grid;place-items:center;width:42px;height:42px;min-width:42px;border-radius:50%;background:#45435f;color:#fff;font-weight:700}.post>p{line-height:1.7}.comment{font-size:.89rem;padding:8px 12px;background:#171b23;border-radius:9px}.comment-form{display:flex;gap:10px}.comment-form input,.message-form input,.chat-list input{min-width:0;flex:1;background:#1c212a;color:#fff;border:1px solid #3a4350;border-radius:12px;padding:12px;font-size:16px}.comment-form button,.chat-list button{border:0;background:#282f3d;color:#fff;border-radius:10px;padding:0 15px}.messenger{display:grid;grid-template-columns:320px minmax(0,1fr);height:calc(100dvh - 180px);min-height:520px;border:1px solid #2c323d;border-radius:18px;overflow:hidden}.chat-list{border-right:1px solid #303641;overflow:auto;padding:22px 12px}.chat-list h1{font-size:1.7rem;padding-left:10px}.chat-list form{display:flex;gap:6px;margin:12px 8px 22px}.chat-list a{display:flex;align-items:center;gap:11px;padding:11px;border-radius:12px}.chat-list a:hover{background:#202631}.chat-list a span:last-child{min-width:0}.chat-list a small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#aab2c2;margin-top:4px}.chat-thread{display:flex;flex-direction:column;min-width:0}.thread-head{display:grid;gap:4px;padding:18px 22px;border-bottom:1px solid #303641}.thread-head small{color:#aab2c2}.thread-scroll{flex:1;overflow:auto;padding:25px;display:flex;flex-direction:column;gap:12px}.bubble{max-width:min(75%,470px);padding:12px 15px;border-radius:17px;background:#252b35;line-height:1.55;overflow-wrap:anywhere}.bubble.sent{align-self:flex-end;background:#6559e9}.bubble.received{align-self:flex-start}.bubble time{display:block;opacity:.75;font-size:.7rem;margin-top:5px}.message-form{display:flex;gap:9px;border-top:1px solid #303641;padding:13px}.chat-empty{margin:auto;color:#b7bdca}.auth{min-height:100dvh;display:grid;place-content:center;padding:24px}.auth-brand{font-size:2.6rem;font-weight:800;letter-spacing:-.1em;text-align:center;margin-bottom:24px}.auth-brand span{color:#a79aff}.auth-card{width:min(100%,440px);background:#151920;border:1px solid #303641;border-radius:24px;padding:35px}.auth-card h1{font-size:2.25rem}.auth-card p{color:#c1c6d0}.auth-card label{display:block;font-weight:600;margin:18px 0}.auth-card input{display:block;min-height:50px;margin-top:8px}.auth-card button{width:100%;margin:6px 0 15px}.muted{font-size:.83rem;color:#a4acb9!important}.notice{padding:13px 17px;background:#382f48;border:1px solid #615073;color:#fff;border-radius:12px;margin-bottom:20px}.moderation{border-top:1px solid #323844;padding:15px 0}.moderation p{margin:8px 0}.audit{border-top:1px solid #323844;padding:10px 0;font-size:.85rem}.mobile-logo,.mobile-nav{display:none}
@media(max-width:900px){.shell{grid-template-columns:70px minmax(0,1fr)}.sidebar{padding:25px 10px}.sidebar .logo{font-size:1.2rem;padding:0 3px}.sidebar-caption,.sidebar nav span,.sidebar-bottom strong,.sidebar-bottom small{display:none}.sidebar nav{margin-top:42px}.sidebar nav a{justify-content:center}.sidebar-bottom{padding:10px 0}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.messenger{grid-template-columns:280px minmax(0,1fr)}}
@media(max-width:650px){.shell{display:block}.sidebar{display:none}.topbar{height:60px;padding:0 17px}.topbar>span{display:none}.mobile-logo{display:block;font-size:1.25rem;font-weight:800;letter-spacing:-.06em}.top-account{font-size:.78rem;max-width:55%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.content{padding:27px 14px 110px}.stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.stats .card{padding:18px}.stats strong{font-size:1.5rem}.card{padding:19px;border-radius:16px}.mobile-nav{display:flex;justify-content:space-around;align-items:center;position:fixed;bottom:10px;left:10px;right:10px;height:62px;border:1px solid #414857;border-radius:35px;background:#151920f0;backdrop-filter:blur(12px);z-index:10}.mobile-nav a{font-size:1.5rem}.messenger{display:block;height:auto;min-height:0}.chat-list{border-right:0;max-height:320px}.chat-thread{height:480px;border-top:1px solid #303641}.scope{gap:6px}.scope a{padding:9px 11px;font-size:.83rem}.table-card{padding:8px}td,th{padding:11px 8px;font-size:.8rem}.message-form{padding:8px}.message-form button{padding:8px}.auth-card{padding:25px}}
.card select,.card input:not([type=hidden]){display:block;width:100%;min-height:46px;margin:8px 0 16px;padding:11px 13px;border:1px solid #3a4350;border-radius:11px;background:#1d222b;color:#fff;font-size:16px}
.post-image{display:block;width:100%;max-height:640px;object-fit:contain;background:#0b0d12;border:1px solid #2b303b;border-radius:12px;margin:14px 0}.like-form{display:flex;align-items:center;gap:9px;margin:11px 0;color:#fff}.like-form button{border:0;background:none;color:#fff;font-size:1.9rem;line-height:1;padding:3px 4px}.like-form button[aria-pressed="true"]{color:#ff5369}.like-form span{font-size:.87rem;font-weight:650}
.admin-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.admin-heading .lead{margin-bottom:20px}.admin-private{border:1px solid #435044;background:#18221b;color:#b4e1bb;border-radius:99px;padding:10px 14px;white-space:nowrap;font-size:.8rem}.admin-tabs{position:sticky;top:0;z-index:5;display:flex;gap:7px;overflow-x:auto;scrollbar-width:none;background:#0b0d12e8;backdrop-filter:blur(14px);border-bottom:1px solid #292e36;padding:10px 0 14px;margin-bottom:28px}.admin-tabs::-webkit-scrollbar{display:none}.admin-tabs a{white-space:nowrap;border-radius:10px;padding:10px 13px;color:#dce0e8;font-weight:600}.admin-tabs a:hover,.admin-tabs a:focus{background:#222934;color:#fff}.admin-section{scroll-margin-top:86px;margin-bottom:28px}.admin-section-head{display:flex;justify-content:space-between;align-items:end;gap:12px;margin-bottom:17px}.admin-section-head h2{font-size:1.55rem;margin-bottom:0}.admin-section-head small{color:#b9c0cc}.admin-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:16px}.admin-stat{min-width:0;background:#161b23;border:1px solid #303945;border-radius:18px;padding:21px}.admin-stat span{display:block;color:#c6ccd7;font-size:.86rem}.admin-stat strong{display:block;margin-top:12px;font-size:2.2rem;letter-spacing:-.06em}.admin-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.admin-grid>.card{margin-bottom:0}.course-bars>div{display:grid;grid-template-columns:70px minmax(0,1fr) 48px 76px;align-items:center;gap:9px;margin:17px 0}.course-bars small{white-space:nowrap}.course-track{height:8px;background:#2d3340;border-radius:99px;overflow:hidden}.course-track i{display:block;height:100%;background:linear-gradient(90deg,#7066f0,#ba9cff);border-radius:99px}.admin-form{display:grid;gap:10px;max-width:680px}.admin-form label{margin:0}.admin-form .primary{justify-self:start}.admin-form input,.admin-form select{max-width:100%}.admin-details{margin-top:22px;border-top:1px solid #333a45;padding-top:18px}.admin-details summary{cursor:pointer;color:#e8e5ff;font-weight:700}.admin-details p{margin-top:14px}.status{display:inline-block;border-radius:99px;padding:5px 9px;background:#28313e;color:#e4e7f0;white-space:nowrap;font-size:.77rem}.status-active{background:#173b31;color:#a7f0d4}.status-pending{background:#44381e;color:#f3d896}.status-suspended{background:#482627;color:#ffc1c1}.moderation-head{display:flex;justify-content:space-between;gap:10px}.moderation-head small{white-space:nowrap}.admin-section td small{display:block;margin-top:4px}.admin-section td form{margin:0}.admin-section .table-card{max-width:100%;overflow-x:auto}.admin-section table{min-width:670px}
@media(max-width:900px){.admin-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-grid{grid-template-columns:1fr}}
@media(max-width:650px){.admin-heading{display:block}.admin-private{display:inline-block;margin-bottom:20px}.admin-tabs{top:60px;margin:0 -14px 25px;padding:9px 14px 13px}.admin-stats{gap:9px}.admin-stat{padding:16px;border-radius:15px}.admin-stat strong{font-size:1.7rem}.admin-section-head{align-items:flex-start}.admin-section-head small{font-size:.75rem;text-align:right}.admin-section-head h2{font-size:1.3rem}.course-bars>div{grid-template-columns:65px minmax(0,1fr) 40px;gap:6px}.course-bars small{grid-column:2/4;margin-top:-5px}.admin-form .primary{width:100%;justify-self:stretch}.admin-grid .card{margin-bottom:0}}

/* Login · calm editorial layout */
.auth-login{display:block;min-height:100dvh;padding:0;background:#f5f5f3;color:#141619;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",sans-serif}
.login-layout{min-height:100dvh;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(440px,.95fr)}
.login-intro{position:relative;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;padding:clamp(32px,5vw,76px);background:#121517;color:#fff}
.login-intro::after{content:"";position:absolute;width:620px;height:620px;right:-330px;bottom:-370px;border:1px solid rgba(255,255,255,.11);border-radius:50%;box-shadow:0 0 0 90px rgba(255,255,255,.018),0 0 0 180px rgba(255,255,255,.014);pointer-events:none}
.login-wordmark,.login-mobile-brand{display:inline-flex;align-items:center;gap:12px;width:max-content;font-size:1.16rem;font-weight:680;letter-spacing:-.045em;color:inherit}
.login-wordmark:hover{color:#fff}.login-mark{display:grid;place-items:center;width:43px;height:43px;border:1px solid rgba(255,255,255,.2);border-radius:13px;background:#fff;color:#111418;font-size:1.7rem;font-weight:820;letter-spacing:-.11em;padding-right:3px}
.login-intro-copy{position:relative;z-index:1;max-width:700px}.login-overline{display:block;font-size:.69rem;font-weight:750;letter-spacing:.19em;line-height:1.5}
.login-intro .login-overline{color:#b7c0c5}.login-intro h1{margin:20px 0 23px;font-size:clamp(3.3rem,5.2vw,6rem);line-height:1.02;letter-spacing:-.072em;font-weight:700}.login-intro h1 em{font-style:normal;color:#aeb8bd}.login-intro-copy p{max-width:460px;margin:0;color:#b9c1c5;font-size:1.12rem;line-height:1.65}
.login-intro-footer{position:relative;z-index:1;display:flex;justify-content:space-between;max-width:500px;color:#89949a;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase}
.login-card{align-self:center;justify-self:center;display:block;width:min(100% - 64px,430px);padding:0;background:transparent;border:0;border-radius:0;box-shadow:none}
.login-mobile-brand{display:none}.login-card .login-overline{color:#686d72}.login-card h2{margin:16px 0 10px;color:#17191b;font-size:clamp(2.2rem,3vw,2.9rem);line-height:1.12;letter-spacing:-.06em;font-weight:700}.login-card-head>p{margin:0 0 38px;color:#697076;font-size:.99rem;line-height:1.55}
.login-card form{margin:0}.login-card label{display:block;margin:0 0 20px;color:#25292d;font-size:.86rem;font-weight:660}.login-card input{display:block;width:100%;min-height:54px;margin-top:10px;padding:14px 16px;border:1px solid #d8dcdf;border-radius:13px;background:#fff;color:#15191c;font-size:16px;outline:0;box-shadow:0 1px 2px rgba(15,23,30,.02);transition:border-color .2s,box-shadow .2s}.login-card input::placeholder{color:#a7afb4}.login-card input:focus{border-color:#68747c;box-shadow:0 0 0 4px rgba(43,59,71,.1)}
.login-help{display:flex;justify-content:flex-end;margin:-5px 0 24px}.login-help a,.login-register a{color:#222b32;font-size:.86rem;font-weight:650;text-decoration:none}.login-help a:hover,.login-register a:hover{text-decoration:underline}
.login-card .primary{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;min-height:54px;margin:0;padding:13px 20px;border:1px solid #161b1e;border-radius:13px;background:#161b1e;color:#fff;font-size:.96rem;font-weight:660;cursor:pointer;transition:background .2s,transform .2s,box-shadow .2s}.login-card .primary:hover{background:#313a40;box-shadow:0 9px 20px rgba(17,24,29,.13);transform:translateY(-1px)}.login-card .primary span{font-size:1.25rem;font-weight:400;line-height:1}
.login-register{text-align:center;margin:24px 0 0!important;color:#727a80!important;font-size:.86rem}.login-card-footer{display:flex;justify-content:space-between;margin-top:80px;padding-top:18px;border-top:1px solid #dedfdf;color:#90979a;font-size:.72rem}.login-card .notice{background:#fff4ec;border-color:#e5c6b1;color:#5c3420}
@media(max-width:880px){.login-layout{grid-template-columns:minmax(0,.85fr) minmax(390px,1fr)}.login-intro{padding:42px}.login-intro h1{font-size:clamp(3rem,5vw,4.4rem)}.login-card{width:min(100% - 52px,430px)}}
@media(max-width:700px){.auth-login{background:#f7f8f7}.login-layout{display:block;min-height:100dvh}.login-intro{display:none}.login-card{width:min(100% - 48px,430px);min-height:100dvh;padding:34px 0 22px;display:flex;flex-direction:column;justify-content:center}.login-mobile-brand{display:inline-flex;margin-bottom:65px;color:#181c1f}.login-mobile-brand .login-mark{background:#181c1f;color:#fff;border-color:#181c1f}.login-card h2{font-size:2.35rem}.login-card-head>p{margin-bottom:34px}.login-card-footer{margin-top:auto;padding-top:18px}.login-card .primary{transform:none}}
@media(max-width:380px){.login-card{width:min(100% - 36px,430px)}.login-mobile-brand{margin-bottom:48px}.login-card h2{font-size:2.1rem}}
@media(prefers-reduced-motion:reduce){.login-card input,.login-card .primary{transition:none}}