/* The SOCIAL System LMS — Neon Lavender */
:root{--black:#030308;--soft:#0B0A12;--card:#0F0D18;--deep:#16072D;--royal:#3B0D78;--neon:#9B3DFF;--glow:#D9C5FF;
--white:#F8F8FB;--gray:#8B8894;--line:#1D1330;--line2:#33204F;--body:#C6C0D4;--ok:#36D399;--warn:#F5B84B;--bad:#F06A6A;color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--black);color:var(--white);font-family:"DM Sans",system-ui,-apple-system,sans-serif;font-size:15.5px;line-height:1.55;-webkit-font-smoothing:antialiased;
background-image:radial-gradient(90% 50% at 50% -10%,#16072D 0%,transparent 60%)}
h1,h2,h3,h4{font-family:"Archivo",Helvetica,Arial,sans-serif;font-weight:800;letter-spacing:-.03em;margin:0;line-height:1.1;text-wrap:balance}
h1{font-size:clamp(26px,3.6vw,38px)}h2{font-size:clamp(20px,2.6vw,26px)}h3{font-size:17px}h4{font-size:15px}
p{margin:0 0 12px;color:var(--body)}
a{color:var(--neon);text-decoration:none}
img{max-width:100%}
.mono,.lbl{font-family:"DM Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums}
.lbl{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--gray);font-weight:500}
.ital{font-family:"Playfair Display",Georgia,serif;font-style:italic;color:var(--glow)}
.grad{background:linear-gradient(96deg,var(--neon),var(--glow));-webkit-background-clip:text;background-clip:text;color:transparent}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px}

/* shell */
.app{display:grid;grid-template-columns:250px 1fr;min-height:100vh}
.side{background:var(--soft);border-right:1px solid var(--line);padding:22px 16px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:22px;overflow-y:auto}
.brand img{height:22px;display:block;margin:4px 6px 0}
.nav{display:flex;flex-direction:column;gap:2px;flex:1}
.nav .nl{font-family:"DM Mono",monospace;font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--gray);margin:14px 10px 6px}
.nav a{display:flex;align-items:center;gap:11px;padding:9px 12px;border-radius:10px;color:var(--body);font-size:14.5px;font-weight:500;position:relative}
.nav a i{font-style:normal;width:20px;text-align:center;color:var(--gray);font-size:14px}
.nav a:hover{background:rgba(155,61,255,.08);color:var(--white)}
.nav a.on{background:linear-gradient(100deg,rgba(155,61,255,.22),rgba(155,61,255,.06));color:var(--white);box-shadow:inset 2px 0 0 var(--neon)}
.nav a.on i{color:var(--neon)}
.badge{margin-left:auto;background:var(--neon);color:#fff;font-family:"DM Mono",monospace;font-size:10px;padding:1px 7px;border-radius:999px}
.me{display:flex;align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--card)}
.me .who{flex:1;min-width:0}.me b{display:block;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.me span{font-size:11.5px;color:var(--gray)}
.me .out{color:var(--gray);font-size:16px}
.av{width:36px;height:36px;border-radius:50%;background:linear-gradient(130deg,var(--neon),var(--royal));display:grid;place-items:center;font-family:"Archivo",sans-serif;font-weight:800;font-size:13px;color:#fff;flex:none}
.av.sm{width:30px;height:30px;font-size:11px}
.main{min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;gap:14px;padding:14px 28px;border-bottom:1px solid var(--line);background:rgba(3,3,8,.7);backdrop-filter:blur(10px);position:sticky;top:0;z-index:30}
.top .crumbs{font-family:"DM Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--gray);flex:1}
.burger{display:none;background:none;border:1px solid var(--line2);color:var(--white);border-radius:8px;width:36px;height:36px;font-size:16px;cursor:pointer}
.content{padding:28px;max-width:1160px;width:100%;flex:1}
.foot{padding:18px 28px;border-top:1px solid var(--line);font-size:12px;color:var(--gray)}
@media(max-width:900px){
  .app{grid-template-columns:1fr}
  .side{position:fixed;left:0;top:0;bottom:0;width:260px;z-index:50;transform:translateX(-100%);transition:transform .2s;height:100vh}
  .side.open{transform:none;box-shadow:0 0 0 100vw rgba(0,0,0,.5)}
  .burger{display:block}
  .content{padding:18px 16px}.top{padding:12px 16px}
}

/* blocks */
.grid{display:grid;gap:16px}
.g2{grid-template-columns:1fr 1fr}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1000px){.g3,.g4{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 22px}
.card.n{border-color:rgba(155,61,255,.5);box-shadow:0 0 0 1px rgba(155,61,255,.12),0 30px 60px -40px rgba(155,61,255,.7)}
.card .lbl{display:block;margin-bottom:8px}
.hero{background:linear-gradient(135deg,#1A0A36 0%,#0B0A12 60%);border:1px solid var(--line2);border-radius:20px;padding:30px 32px;display:grid;grid-template-columns:1fr auto;gap:22px;align-items:center;margin-bottom:18px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(155,61,255,.35),transparent 70%);pointer-events:none}
.hero h1{margin:8px 0 8px}.hero p{max-width:60ch;margin:0}
@media(max-width:700px){.hero{grid-template-columns:1fr}}
.sect{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:30px 0 14px}
.sect h2{font-size:19px}
.sect .lbl{margin:0}

/* buttons & forms */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:"Archivo",sans-serif;font-weight:700;font-size:14px;padding:11px 20px;border-radius:11px;border:0;cursor:pointer;color:#fff;background:linear-gradient(100deg,var(--neon),#6E1FD1);box-shadow:0 12px 30px -14px rgba(155,61,255,.9);white-space:nowrap;text-decoration:none;transition:filter .12s,transform .12s}
.btn:hover{filter:brightness(1.12);color:#fff}.btn:active{transform:translateY(1px)}
.btn.ghost{background:transparent;border:1px solid var(--line2);box-shadow:none;color:var(--white)}.btn.ghost:hover{border-color:var(--neon)}
.btn.sm{padding:8px 14px;font-size:12.5px;border-radius:9px}
.btn.danger{background:linear-gradient(100deg,#F06A6A,#B23A3A)}
.btn.ok{background:linear-gradient(100deg,#36D399,#1E8F66)}
.btn[disabled],.btn.off{opacity:.45;pointer-events:none}
label{display:block;font-family:"DM Mono",monospace;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--gray);margin:0 0 6px}
input,select,textarea{width:100%;background:var(--soft);border:1px solid var(--line2);color:var(--white);border-radius:10px;padding:11px 13px;font:inherit;font-size:14.5px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(155,61,255,.18)}
textarea{min-height:110px;resize:vertical}
.field{margin-bottom:14px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.row{grid-template-columns:1fr}}
.help{font-size:12.5px;color:var(--gray);margin:6px 0 0}
.check{display:flex;align-items:center;gap:10px;font-family:inherit;text-transform:none;letter-spacing:0;font-size:14px;color:var(--body)}
.check input{width:auto}
.flash{padding:12px 16px;border-radius:12px;margin-bottom:16px;font-size:14px;border:1px solid}
.flash.ok{background:rgba(54,211,153,.1);border-color:rgba(54,211,153,.4);color:#BDF3DD}
.flash.err{background:rgba(240,106,106,.1);border-color:rgba(240,106,106,.4);color:#F8C9C9}
.flash.info{background:rgba(155,61,255,.1);border-color:rgba(155,61,255,.4);color:var(--glow)}

/* stats / ring */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.stat b{display:block;font-family:"Archivo",sans-serif;font-size:26px;font-weight:800;letter-spacing:-.04em;color:var(--white);line-height:1}
.stat b.neon{color:var(--neon)}.stat b.ok{color:var(--ok)}.stat b.warn{color:var(--warn)}.stat b.bad{color:var(--bad)}
.stat span{display:block;font-size:12px;color:var(--gray);margin-top:7px}
.ring{--p:0;width:118px;height:118px;border-radius:50%;background:conic-gradient(var(--neon) calc(var(--p)*1%),var(--line2) 0);display:grid;place-items:center;position:relative;flex:none}
.ring::before{content:"";position:absolute;inset:9px;border-radius:50%;background:var(--card)}
.ring b,.ring span{position:relative}
.ring b{font-family:"Archivo",sans-serif;font-size:24px;font-weight:800;letter-spacing:-.04em;line-height:1}
.ring span{font-size:10px;color:var(--gray);text-align:center;font-family:"DM Mono",monospace;letter-spacing:.1em;text-transform:uppercase;margin-top:2px}
.bar{height:7px;background:var(--line2);border-radius:4px;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--neon),var(--glow));border-radius:4px;width:0}

/* phases */
.phase{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;display:flex;flex-direction:column;gap:12px;position:relative;transition:border-color .15s}
.phase:hover{border-color:var(--line2)}
.phase.lock{opacity:.7}
.ph-top{display:flex;gap:12px;align-items:flex-start}
.ltr{width:38px;height:38px;border-radius:10px;background:var(--royal);color:var(--glow);font-family:"Archivo",sans-serif;font-weight:800;font-size:17px;display:grid;place-items:center;flex:none}
.phase h3{margin-bottom:3px}.phase .tag{font-size:12.5px;color:var(--gray);margin:0}
.phase .meta{display:flex;justify-content:space-between;font-size:11.5px;color:var(--gray);font-family:"DM Mono",monospace}
.locknote{font-family:"DM Mono",monospace;font-size:10.5px;letter-spacing:.08em;color:var(--gray);border-top:1px dashed var(--line2);padding-top:10px}
.lessons{display:flex;flex-direction:column;gap:6px}
.lrow{display:grid;grid-template-columns:26px 1fr auto;gap:12px;align-items:center;padding:12px 14px;border:1px solid var(--line);background:var(--card);border-radius:12px;color:var(--white)}
.lrow:hover{border-color:var(--neon)}
.lrow .tick{width:20px;height:20px;border-radius:50%;border:1.5px solid var(--line2);display:grid;place-items:center;font-size:11px;color:transparent}
.lrow.done .tick{background:var(--ok);border-color:var(--ok);color:#052}
.lrow.now{border-color:var(--neon);box-shadow:0 0 0 1px rgba(155,61,255,.2)}
.lrow .t{display:block;font-weight:700;font-size:14.5px}.lrow .d{display:block;font-size:12.5px;color:var(--gray)}
.lrow .r{font-family:"DM Mono",monospace;font-size:11.5px;color:var(--gray)}

/* lesson */
.player{position:relative;aspect-ratio:16/9;background:var(--soft);border:1px solid var(--line2);border-radius:16px;overflow:hidden;margin-bottom:18px}
.player iframe,.player video{position:absolute;inset:0;width:100%;height:100%;border:0}
.player .empty{position:absolute;inset:0;display:grid;place-items:center;text-align:center;color:var(--gray);font-family:"DM Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;background:radial-gradient(60% 60% at 50% 40%,#16072D,#0B0A12)}
.lesson-grid{display:grid;grid-template-columns:1fr 320px;gap:22px;align-items:start}
@media(max-width:1000px){.lesson-grid{grid-template-columns:1fr}}
.action{background:linear-gradient(135deg,rgba(155,61,255,.16),rgba(155,61,255,.04));border:1px solid rgba(155,61,255,.4);border-radius:14px;padding:18px 20px}
.action .lbl{color:var(--neon);display:block;margin-bottom:6px}
.action p{color:var(--white);font-size:15.5px;margin:0}
.pn{display:flex;justify-content:space-between;gap:10px;margin-top:22px;flex-wrap:wrap}
.sidelist a{display:grid;grid-template-columns:22px 1fr;gap:10px;padding:9px 10px;border-radius:9px;color:var(--body);font-size:13.5px;align-items:center}
.sidelist a:hover{background:rgba(155,61,255,.08)}
.sidelist a.on{background:rgba(155,61,255,.14);color:var(--white)}
.sidelist .tick{width:16px;height:16px;border-radius:50%;border:1.5px solid var(--line2);font-size:9px;display:grid;place-items:center;color:transparent}
.sidelist .done .tick{background:var(--ok);border-color:var(--ok);color:#052}

/* sessions */
.sess{display:grid;grid-template-columns:110px 1fr auto;gap:18px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.sess.next{border-color:rgba(155,61,255,.6);box-shadow:0 0 0 1px rgba(155,61,255,.15)}
.sess.past{opacity:.6}
.sess .dt b{display:block;font-family:"Archivo",sans-serif;font-size:22px;font-weight:800;letter-spacing:-.04em;line-height:1}
.sess .dt span{font-family:"DM Mono",monospace;font-size:10.5px;color:var(--gray);letter-spacing:.1em;text-transform:uppercase}
.sess .code{font-family:"DM Mono",monospace;font-size:10.5px;color:var(--neon);letter-spacing:.14em;text-transform:uppercase}
.sess h3{margin:3px 0 4px}.sess p{margin:0;font-size:13px;color:var(--gray)}
.sess .acts{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
@media(max-width:700px){.sess{grid-template-columns:1fr}.sess .acts{justify-content:flex-start}}
.countdown{font-family:"DM Mono",monospace;color:var(--glow)}
.cdbig{display:flex;gap:10px}
.cdbig div{background:var(--soft);border:1px solid var(--line2);border-radius:10px;padding:10px 12px;min-width:62px;text-align:center}
.cdbig b{display:block;font-family:"Archivo",sans-serif;font-size:24px;font-weight:800;letter-spacing:-.04em;color:var(--neon);line-height:1}
.cdbig span{font-family:"DM Mono",monospace;font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--gray);display:block;margin-top:4px}

/* resources */
.res{display:grid;grid-template-columns:52px 1fr auto;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.res .ty{width:52px;height:52px;border-radius:12px;background:var(--royal);color:var(--glow);font-family:"DM Mono",monospace;font-size:10px;letter-spacing:.1em;display:grid;place-items:center}
.res h4{margin-bottom:2px}.res p{margin:0;font-size:13px;color:var(--gray)}

/* tables */
.tbox{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--card)}
table{border-collapse:collapse;width:100%;font-size:14px;min-width:640px}
th{text-align:left;font-family:"DM Mono",monospace;font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;font-weight:500;color:var(--gray);padding:12px 14px;border-bottom:1px solid var(--line2);background:var(--deep);white-space:nowrap}
td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle;color:var(--body)}
tr:last-child td{border-bottom:0}
td:first-child{color:var(--white);font-weight:600}
.pill{display:inline-block;font-family:"DM Mono",monospace;font-size:10px;letter-spacing:.1em;text-transform:uppercase;padding:3px 9px;border-radius:999px;border:1px solid var(--line2);color:var(--body)}
.pill.ok{border-color:rgba(54,211,153,.5);color:var(--ok)}.pill.warn{border-color:rgba(245,184,75,.5);color:var(--warn)}.pill.bad{border-color:rgba(240,106,106,.5);color:var(--bad)}.pill.neon{border-color:rgba(155,61,255,.6);color:var(--glow)}
.actions{display:flex;gap:6px;flex-wrap:wrap}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.toolbar input,.toolbar select{width:auto;min-width:180px}

/* announcements / doubts */
.ann{border-left:2px solid var(--neon);padding:4px 0 4px 16px;margin-bottom:16px}
.ann h4{margin-bottom:4px}.ann .when{font-family:"DM Mono",monospace;font-size:10px;color:var(--gray);letter-spacing:.1em}
.ann p{margin:6px 0 0;font-size:14px;white-space:pre-line}
.thread{display:flex;flex-direction:column;gap:10px}
.msg{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:14px;max-width:80%}
.msg.me{align-self:flex-end;background:rgba(155,61,255,.12);border-color:rgba(155,61,255,.35)}
.msg .who{font-family:"DM Mono",monospace;font-size:10px;color:var(--gray);letter-spacing:.1em;margin-bottom:4px;display:block}
.msg p{margin:0;color:var(--white);white-space:pre-line}

/* login */
.login{min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr}
.login .art{background:linear-gradient(160deg,#16072D,#030308);border-right:1px solid var(--line);padding:48px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.login .art::after{content:"";position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(155,61,255,.35),transparent 70%)}
.login .art img{height:26px}
.login .art h1{font-size:clamp(34px,4.5vw,60px);max-width:12ch;position:relative}
.login .art .letters{display:flex;gap:8px;position:relative;margin-top:18px}
.login .art .letters span{width:44px;height:44px;border-radius:11px;background:var(--royal);color:var(--glow);font-family:"Archivo",sans-serif;font-weight:800;display:grid;place-items:center;font-size:18px}
.login .form{display:grid;place-items:center;padding:40px 24px}
.login .box{width:100%;max-width:400px}
.login .box h2{margin-bottom:6px}
@media(max-width:820px){.login{grid-template-columns:1fr}.login .art{padding:32px 24px;min-height:auto}}

/* certificate */
.cert{background:#fff;color:#111;max-width:900px;aspect-ratio:1.414;margin:0 auto;padding:60px 70px;border:14px solid #3B0D78;position:relative;font-family:"DM Sans",sans-serif}
.cert h1{font-family:"Archivo",sans-serif;color:#3B0D78;font-size:44px;margin:22px 0 10px}
.cert .name{font-family:"Playfair Display",serif;font-style:italic;font-size:46px;margin:14px 0 6px;color:#111}
.cert .lbl{color:#7a5aa6}
.cert .sig{position:absolute;bottom:56px;left:70px}
.cert .seal{position:absolute;bottom:50px;right:70px;width:90px;height:90px;border-radius:50%;background:conic-gradient(#9B3DFF,#3B0D78,#9B3DFF);display:grid;place-items:center;color:#fff;font-family:"Archivo",sans-serif;font-weight:800;font-size:22px}
@media print{body{background:#fff}.side,.top,.foot,.noprint{display:none!important}.app{display:block}.content{padding:0}.cert{border-width:10px}}

/* misc */
.kbd{font-family:"DM Mono",monospace;background:var(--soft);border:1px solid var(--line2);padding:2px 8px;border-radius:6px;font-size:12.5px;color:var(--glow)}
.copy{cursor:pointer}
.muted{color:var(--gray)}
.small{font-size:13px}
.right{text-align:right}
details.acc{border:1px solid var(--line);border-radius:12px;background:var(--card);margin-bottom:10px}
details.acc summary{cursor:pointer;padding:14px 18px;font-weight:700;list-style:none;display:flex;justify-content:space-between;align-items:center}
details.acc summary::-webkit-details-marker{display:none}
details.acc summary::after{content:"+";color:var(--gray)}
details.acc[open] summary::after{content:"–"}
details.acc .in{padding:0 18px 18px}
.empty{padding:34px;text-align:center;color:var(--gray);border:1px dashed var(--line2);border-radius:14px;font-size:14px}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;padding:5px 11px;border-radius:999px;border:1px solid var(--line2);color:var(--body);background:var(--soft)}
.chip.ok{border-color:rgba(54,211,153,.5);color:var(--ok)}
.integ{display:grid;grid-template-columns:44px 1fr auto;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.integ .ic{width:44px;height:44px;border-radius:12px;background:var(--royal);display:grid;place-items:center;font-family:"Archivo",sans-serif;font-weight:800;color:var(--glow)}
.integ h4{margin-bottom:2px}.integ p{margin:0;font-size:13px;color:var(--gray)}
.streak{display:flex;gap:6px}
.streak span{width:26px;height:26px;border-radius:7px;background:var(--line);display:grid;place-items:center;font-family:"DM Mono",monospace;font-size:10px;color:var(--gray)}
.streak span.hit{background:var(--neon);color:#fff}
.lb{display:flex;flex-direction:column;gap:8px}
.lb div{display:grid;grid-template-columns:28px 1fr auto;gap:10px;align-items:center;padding:10px 12px;background:var(--soft);border:1px solid var(--line);border-radius:10px;font-size:14px}
.lb .rank{font-family:"DM Mono",monospace;color:var(--neon);font-size:12px}
.lb .n{font-family:"DM Mono",monospace;color:var(--glow)}