:root{
  --black:#0B0B0F; --card-dark:#18181F; --line-dark:#2C2C38;
  --lime:#C6FF2B; --lime-ink:#243B00;
  --blue:#4C6FFF; --purple:#8B5CF6; --pink:#FF2D95; --orange:#FF8A1E;
  --green:#22B573; --red:#E5484D;
  --white:#fff; --ink:#0B0B0F; --muted:#6A6A78; --muted-2:#9A9AA8;
  --bg:#F4F4F7; --line:#E3E3EA;
  --r:14px; --shadow:0 1px 2px rgba(11,11,15,.06),0 8px 24px rgba(11,11,15,.06);
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;line-height:1.5}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
a{color:var(--blue)}

/* ---------- layout ---------- */
.auth-wrap{min-height:100vh;display:grid;place-items:center;background:var(--black);padding:24px}
.auth-card{width:100%;max-width:420px;background:var(--white);border-radius:20px;padding:36px;box-shadow:var(--shadow)}
.auth-logo{font-weight:800;font-size:13px;letter-spacing:1.4px;color:var(--blue);margin-bottom:20px}
.auth-card h1{font-size:26px;font-weight:800;letter-spacing:-.4px;margin-bottom:8px}
.auth-card p.sub{color:var(--muted);font-size:14px;margin-bottom:24px}
.auth-switch{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);text-align:center;font-size:13px;color:var(--muted)}
.auth-switch button{color:var(--blue);font-weight:600}

.shell{min-height:100vh;display:flex;flex-direction:column}
.topbar{background:var(--black);color:#fff;padding:0 24px;height:60px;display:flex;align-items:center;gap:16px;position:sticky;top:0;z-index:20}
.topbar .brand{font-weight:800;font-size:13px;letter-spacing:1.2px;color:var(--lime)}
.topbar .spacer{flex:1}
.topbar .who{font-size:13px;color:var(--muted-2)}
.topbar .who b{color:#fff;font-weight:600}
.main{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:26px 24px 60px}

/* ---------- components ---------- */
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.card+.card{margin-top:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;border-radius:10px;font-weight:600;font-size:14px;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:#3B5CE8}
.btn-dark{background:var(--black);color:#fff}
.btn-dark:hover{background:#22222c}
.btn-lime{background:var(--lime);color:var(--lime-ink)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--muted)}
.btn-sm{padding:7px 12px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-block{width:100%}

.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field .hint{font-size:12px;color:var(--muted);margin-top:5px}
.input{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:#fff;transition:.15s}
.input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(76,111,255,.12)}

.alert{padding:12px 14px;border-radius:10px;font-size:13.5px;margin-bottom:14px}
.alert-err{background:#FDECEC;color:#9F1D22;border:1px solid #F7C9CB}
.alert-ok{background:#E7F7EF;color:#0F6B44;border:1px solid #BFE9D5}
.alert-info{background:#EEF2FF;color:#2A3F9E;border:1px solid #D3DCFF}

.badge{display:inline-flex;align-items:center;padding:3px 9px;border-radius:20px;font-size:11.5px;font-weight:700;letter-spacing:.2px}
.badge-invited{background:#EFEFF3;color:#5A5A68}
.badge-learning{background:#EEF2FF;color:#3B5CE8}
.badge-ready{background:#E7F7EF;color:#0F6B44}
.badge-hired{background:var(--lime);color:var(--lime-ink)}
.badge-rejected{background:#FDECEC;color:#9F1D22}
.badge-stalled{background:#FFF1E3;color:#A85300}

.progress{height:7px;background:var(--line);border-radius:99px;overflow:hidden}
.progress i{display:block;height:100%;background:var(--blue);border-radius:99px;transition:width .3s}
.progress.lime i{background:var(--lime)}

.page-head{margin-bottom:20px}
.page-head h1{font-size:26px;font-weight:800;letter-spacing:-.4px}
.page-head p{color:var(--muted);font-size:14px;margin-top:4px}

.grid{display:grid;gap:14px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px}
.stat .v{font-size:28px;font-weight:800;letter-spacing:-.5px}
.stat .l{font-size:12.5px;color:var(--muted);margin-top:2px}
.stat.dark{background:var(--black);border-color:var(--black)}
.stat.dark .v{color:var(--lime)}.stat.dark .l{color:var(--muted-2)}

table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;font-weight:700;font-size:11.5px;letter-spacing:.4px;text-transform:uppercase;color:var(--muted);padding:9px 10px;border-bottom:1px solid var(--line)}
td{padding:11px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr.clickable:hover{background:#FAFAFC;cursor:pointer}

/* ---------- block list ---------- */
.block-row{display:flex;align-items:center;gap:16px;padding:16px;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-bottom:10px;transition:.15s}
.block-row:hover{border-color:var(--muted-2)}
.block-row.locked{opacity:.55}
.block-row.done{border-color:var(--green)}
.block-num{width:42px;height:42px;border-radius:10px;display:grid;place-items:center;font-weight:800;font-size:16px;background:var(--bg);color:var(--muted);flex-shrink:0}
.block-row.done .block-num{background:var(--green);color:#fff}
.block-row.active .block-num{background:var(--blue);color:#fff}
.block-info{flex:1;min-width:0}
.block-info h3{font-size:15.5px;font-weight:700}
.block-info p{font-size:12.5px;color:var(--muted);margin-top:2px}
.block-meta{text-align:right;font-size:12px;color:var(--muted);flex-shrink:0}

/* ---------- content ---------- */
.section-nav{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:18px}
.section-pill{padding:7px 13px;border-radius:20px;font-size:12.5px;font-weight:600;border:1px solid var(--line);background:#fff;color:var(--muted)}
.section-pill.active{background:var(--black);border-color:var(--black);color:#fff}
.section-pill.done{border-color:var(--green);color:var(--green)}
.section-pill.done.active{background:var(--green);border-color:var(--green);color:#fff}

.content h2{font-size:22px;font-weight:800;margin-bottom:16px;letter-spacing:-.3px}
.content h3{font-size:16px;font-weight:700;margin:22px 0 10px}
.content p{margin-bottom:12px;font-size:14.5px}
.content p.lead{font-size:17px;font-weight:600;line-height:1.45}
.content ul{margin:0 0 14px 20px}
.content li{margin-bottom:7px;font-size:14.5px}
.content table{margin:12px 0 18px}
.content a.reflink{display:inline-flex;align-items:center;gap:6px;padding:9px 13px;background:var(--bg);border:1px solid var(--line);border-radius:9px;font-size:13.5px;font-weight:600;text-decoration:none;margin:0 8px 8px 0}
.content a.reflink:hover{border-color:var(--blue)}

.media{margin:16px 0 20px}
.media-label{font-size:13px;font-weight:700;color:var(--muted);margin-bottom:7px}
.video-wrap{position:relative;width:100%;padding-top:56.25%;background:var(--black);border-radius:12px;overflow:hidden}
.video-frame{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.content-img{display:block;max-width:100%;height:auto;border-radius:12px;border:1px solid var(--line)}

.callout{padding:15px 17px;border-radius:12px;margin:16px 0;border-left:4px solid}
.callout h4{font-size:14px;font-weight:700;margin-bottom:5px}
.callout p{font-size:14px;margin:0}
.callout-accent{background:#EEF2FF;border-color:var(--blue)}
.callout-warn{background:#FFF7E8;border-color:var(--orange)}
.callout-danger{background:#FDECEC;border-color:var(--red)}

.steps{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 18px}
.step{flex:1;min-width:130px;background:var(--black);color:#fff;border-radius:11px;padding:14px}
.step b{display:block;font-size:19px;color:var(--lime);margin-bottom:5px}
.step span{font-size:13px;font-weight:600}

.people{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));margin:14px 0}
.person{border:1px solid var(--line);border-radius:12px;padding:15px}
.person b{display:block;font-size:15px}
.person .role{font-size:12.5px;color:var(--muted);margin:2px 0 7px}
.person .tag{display:inline-block;background:var(--bg);padding:3px 9px;border-radius:6px;font-size:12px;font-weight:600}
.person .note{font-size:12.5px;color:var(--muted);margin-top:8px}

.stat-row{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));margin:14px 0 18px}

.sticky-actions{position:sticky;bottom:0;background:linear-gradient(transparent,#F4F4F7 22%);padding:22px 0 0;margin-top:24px}

/* ---------- quiz ---------- */
.q{border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:12px;background:#fff}
.q .qnum{font-size:11.5px;font-weight:700;color:var(--muted);letter-spacing:.5px;margin-bottom:7px}
.q .qtext{font-size:15.5px;font-weight:600;margin-bottom:14px;line-height:1.45}
.opt{display:flex;gap:11px;align-items:flex-start;padding:12px 14px;border:1px solid var(--line);border-radius:10px;margin-bottom:8px;cursor:pointer;transition:.12s}
.opt:hover{border-color:var(--muted-2);background:#FAFAFC}
.opt.sel{border-color:var(--blue);background:#EEF2FF}
.opt input{margin-top:3px;flex-shrink:0;accent-color:var(--blue)}
.opt span{font-size:14px;line-height:1.45}
.opt.correct{border-color:var(--green);background:#E7F7EF}
.opt.wrong{border-color:var(--red);background:#FDECEC}
.q.reviewed .opt{cursor:default}
.q-explain{margin-top:12px;padding:13px 15px;background:var(--bg);border-radius:10px;font-size:13.5px}
.q-explain b{display:block;margin-bottom:4px;font-size:12.5px;letter-spacing:.3px;text-transform:uppercase;color:var(--muted)}
.q-explain .ref{margin-top:9px;font-size:13px}

.result-hero{text-align:center;padding:34px 24px;border-radius:16px;margin-bottom:20px}
.result-hero.pass{background:#E7F7EF;border:1px solid #BFE9D5}
.result-hero.fail{background:#FDECEC;border:1px solid #F7C9CB}
.result-hero .score{font-size:52px;font-weight:800;letter-spacing:-1.5px;line-height:1}
.result-hero.pass .score{color:#0F6B44}
.result-hero.fail .score{color:#9F1D22}
.result-hero h2{font-size:20px;font-weight:800;margin:10px 0 6px}
.result-hero p{font-size:14px;color:var(--muted)}

.final-card{background:var(--black);color:#fff;border-radius:16px;padding:34px;text-align:center}
.final-card h2{font-size:26px;font-weight:800;margin-bottom:10px}
.final-card p{color:var(--muted-2);font-size:15px;margin-bottom:20px;max-width:520px;margin-left:auto;margin-right:auto}

.empty{text-align:center;padding:48px 24px;color:var(--muted)}
.empty h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:6px}
.spinner{width:30px;height:30px;border:3px solid var(--line);border-top-color:var(--blue);border-radius:50%;animation:spin .7s linear infinite;margin:40px auto}
@keyframes spin{to{transform:rotate(360deg)}}

.tabs{display:flex;gap:6px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.tab{padding:10px 15px;font-size:14px;font-weight:600;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.tab.active{color:var(--ink);border-bottom-color:var(--black)}

.funnel-row{display:flex;align-items:center;gap:12px;margin-bottom:9px}
.funnel-row .fl{width:180px;font-size:13px;flex-shrink:0}
.funnel-row .fb{flex:1;height:26px;background:var(--bg);border-radius:6px;overflow:hidden}
.funnel-row .fb i{display:block;height:100%;background:var(--blue);border-radius:6px}
.funnel-row .fv{width:70px;text-align:right;font-size:13px;font-weight:700;flex-shrink:0}

/* редактор программы */
.fld{display:block;margin-bottom:12px}
.fld>span{display:block;font-size:12.5px;font-weight:600;color:var(--muted);margin-bottom:5px}
input:not([type=radio]):not([type=checkbox]):not(.input),
select:not(.input),textarea:not(.input){
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;background:#fff;transition:.15s
}
input:not(.input):focus,select:not(.input):focus,textarea:not(.input):focus{outline:none;border-color:var(--blue)}
textarea{resize:vertical;font-size:14px;line-height:1.45}
.btn[disabled]{opacity:.3;pointer-events:none}

.modal-bg{position:fixed;inset:0;background:rgba(11,11,15,.55);display:grid;place-items:center;padding:24px;z-index:100}
.modal{background:#fff;border-radius:16px;padding:26px;width:100%;max-width:640px;max-height:86vh;overflow:auto}
.modal h2{font-size:20px;font-weight:800;margin-bottom:16px}
.row-between{display:flex;align-items:center;justify-content:space-between;gap:12px}
.mt{margin-top:14px}.mb{margin-bottom:14px}
.muted{color:var(--muted)}.small{font-size:12.5px}