:root{--bg:#0B0C0F;--ink:#F2F2F4;--muted:#9EA3AD;--gold:#E2BE55;--gold2:#F3D98A;--line:rgba(255,255,255,.08);--card:rgba(255,255,255,.035)}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:"Onest",system-ui,sans-serif}
a{color:var(--gold)}
@keyframes alt-pulse{0%{box-shadow:0 0 0 0 rgba(226,190,85,.55)}70%{box-shadow:0 0 0 12px rgba(226,190,85,0)}100%{box-shadow:0 0 0 0 rgba(226,190,85,0)}}
@keyframes alt-rise{from{opacity:.15;transform:translateY(14px)}to{opacity:1;transform:none}}

/* полоса пользователя */
.alt-userbar{position:fixed;bottom:16px;right:16px;z-index:50;display:flex;align-items:center;gap:10px;padding:6px 6px 6px 12px;border-radius:999px;background:rgba(17,18,22,.82);border:1px solid var(--line);backdrop-filter:blur(10px);font-size:13px;color:var(--muted)}
.alt-userbar .alt-demo{color:#F3C27E}
.alt-userbar .alt-who{color:var(--ink);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.alt-userbar button{min-height:32px;padding:0 12px;border-radius:999px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);color:var(--ink);font:inherit;cursor:pointer}
.alt-userbar button:hover{border-color:rgba(226,190,85,.5)}
.alt-mnav{display:none;gap:4px}
.alt-mnav a{padding:6px 8px;border-radius:999px;color:var(--ink);text-decoration:none}
@media (max-width:720px){.alt-userbar .alt-demo,.alt-userbar .alt-who{display:none}.alt-mnav{display:flex}.alt-userbar{top:auto;bottom:12px;right:8px;left:8px;justify-content:space-between}}

/* форма входа */
.alt-login{display:flex;flex-direction:column;gap:16px;max-width:600px}
.alt-login-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.alt-login label{flex:1 1 220px;display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}
.alt-login input,.alt-calc input,.alt-calc select{min-height:50px;padding:0 14px;border-radius:14px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);color:var(--ink);font:inherit;font-size:16px;outline:none;transition:border-color .2s,background .2s}
.alt-login input:focus,.alt-calc input:focus,.alt-calc select:focus{border-color:rgba(226,190,85,.7);background:rgba(255,255,255,.08)}
.alt-calc select option{background:#17181C}
.alt-cta{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:56px;padding:0 28px;border-radius:16px;border:0;background:linear-gradient(135deg,#F3D98A,#D2A63A);color:#17181C;font:inherit;font-size:17px;font-weight:700;cursor:pointer;transition:transform .2s,box-shadow .25s}
.alt-cta:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(226,190,85,.3)}
.alt-cta:disabled{opacity:.6;cursor:progress;transform:none}
.alt-login-msg{font-size:14px;color:var(--muted);flex:1 1 200px}

/* страницы оболочки */
.alt-page{display:flex;flex-wrap:wrap;min-height:100vh;background:var(--bg);background-image:radial-gradient(1100px 520px at 75% -12%,rgba(226,190,85,.10),transparent 60%)}
.alt-rail-x{flex:0 0 92px;display:flex;flex-direction:column;align-items:center;gap:22px;padding:24px 0;border-right:1px solid rgba(255,255,255,.07);background:rgba(255,255,255,.02)}
.alt-rail-x nav{display:flex;flex-direction:column;gap:6px;width:100%;padding:0 10px}
.alt-rail-x a{transition:background .2s,color .2s}
.alt-rail-x a:hover{background:rgba(255,255,255,.06);color:#fff!important}
.alt-logo-tile{width:48px;height:48px;border-radius:14px;background:linear-gradient(145deg,#2A2B30,#17181C);border:1px solid rgba(226,190,85,.35);display:flex;align-items:center;justify-content:center}
.alt-main{flex:999 1 560px;min-width:0;padding:28px 36px 48px;display:flex;flex-direction:column;gap:14px}
.alt-kicker{font-family:"Unbounded",sans-serif;font-weight:800;font-style:italic;font-size:13px;letter-spacing:.08em;color:var(--muted)}
.alt-kicker b{color:var(--gold)}
.alt-h1{margin:0;font-family:"Unbounded",sans-serif;font-weight:700;font-size:34px;letter-spacing:-.02em;line-height:1.1}
.alt-sub{margin:0;font-size:15px;color:var(--muted);max-width:720px;line-height:1.55}
.alt-grid{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start;margin-top:10px}
.alt-card{border-radius:24px;border:1px solid var(--line);background:var(--card);padding:22px;animation:alt-rise .6s ease-out both}
.alt-calc{flex:1 1 300px;display:flex;flex-direction:column;gap:14px}
.alt-calc label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}
.alt-src{font-size:13px;color:var(--muted);line-height:1.5}
.alt-result{flex:999 1 520px;min-width:0;display:flex;flex-direction:column;gap:18px}
.alt-kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.alt-kpis div{display:flex;flex-direction:column;gap:4px;padding-top:12px;border-top:1px solid rgba(255,255,255,.10)}
.alt-kpis span{font-size:13px;color:var(--muted)}
.alt-kpis b{font-family:"Unbounded",sans-serif;font-weight:700;font-size:22px;font-variant-numeric:tabular-nums}
.alt-kpis small{font-size:12px;color:var(--muted)}
.alt-table{width:100%;border-collapse:collapse;font-size:14px;font-variant-numeric:tabular-nums}
.alt-table td{padding:9px 0;border-top:1px solid rgba(255,255,255,.07);vertical-align:top}
.alt-table td:last-child{text-align:right;white-space:nowrap;padding-left:12px}
.alt-table td small{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.alt-table td.neg{color:#C9CCD3}
.alt-table tr.is-strong td{font-weight:700;color:var(--ink)}
.alt-table tr.is-strong td:last-child{color:var(--gold2)}
.alt-note{margin:0;font-size:14px;color:#D9C58A;line-height:1.5}
@media (max-width:720px){
  .alt-rail-x,.alt-rail{display:none!important}
  .alt-main{padding:20px 16px 72px}
  .alt-h1{font-size:26px}
}
@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important}}
.alt-h2{margin:0 0 14px;font-size:16px;font-weight:600}
.alt-main>.alt-card{margin-top:10px}
.alt-svcs{display:flex;flex-wrap:wrap;gap:8px}
.alt-chip{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.10);font-size:13px;color:#9EA3AD}
.alt-chip.on{color:var(--ink);border-color:rgba(76,195,138,.35)}
.alt-chip i{width:8px;height:8px;border-radius:50%;display:inline-block}
.alt-row-head{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:10px}
.alt-row-head .alt-h2{margin:0 auto 0 0}
.alt-row-head label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.alt-row-head select{min-height:38px;padding:0 10px;border-radius:10px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);color:var(--ink);font:inherit}
.alt-row-head select option{background:#17181C}
.alt-orders-t{min-width:860px}
.alt-orders-t th{text-align:left;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600;padding:8px 10px 8px 0}
.alt-orders-t td{padding:10px 10px 10px 0}
.alt-orders-t td:last-child{text-align:left}