/* ============================================================
   Cognosia design system
   ============================================================ */
:root{
  --bg:#070c16; --bg2:#0b1220; --panel:rgba(255,255,255,.045);
  --panel-solid:#0f1626; --stroke:rgba(255,255,255,.09); --stroke2:rgba(255,255,255,.14);
  --ink:#e8eef7; --muted:#93a1b5; --faint:#5f6d82;
  --brand:#10b981; --brand2:#34d399; --brand-d:#065f46;
  --indigo:#6366f1; --rose:#fb7185; --amber:#f59e0b; --danger:#ef4444;
  --radius:16px; --radius-lg:22px; --shadow:0 20px 50px -20px rgba(0,0,0,.7);
  --font:'Inter',system-ui,Segoe UI,Roboto,sans-serif; --display:'Sora',var(--font);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);color:var(--ink);line-height:1.55;
  background:radial-gradient(1200px 700px at 80% -10%,rgba(16,185,129,.12),transparent 60%),
             radial-gradient(900px 600px at -10% 20%,rgba(99,102,241,.12),transparent 55%),
             var(--bg);
  min-height:100dvh;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
::selection{background:var(--brand);color:#04140d}
.muted{color:var(--muted)} .faint{color:var(--faint)}

/* animated background orbs */
.bg-orbs{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.bg-orbs span{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;animation:float 22s ease-in-out infinite}
.bg-orbs span:nth-child(1){width:420px;height:420px;background:#0e7a5a;top:-120px;right:-80px}
.bg-orbs span:nth-child(2){width:360px;height:360px;background:#3b3a8f;bottom:-120px;left:-60px;animation-delay:-7s}
.bg-orbs span:nth-child(3){width:300px;height:300px;background:#0b5e7a;top:40%;left:55%;animation-delay:-14s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(40px,-30px) scale(1.08)}66%{transform:translate(-30px,25px) scale(.95)}}

/* top loading bar */
#topbar{position:fixed;top:0;left:0;height:3px;width:0;z-index:9999;
  background:linear-gradient(90deg,var(--brand),var(--brand2),var(--indigo));
  box-shadow:0 0 14px var(--brand);transition:width .25s ease,opacity .4s;opacity:0}
#topbar.run{opacity:1} #topbar.done{width:100%!important;opacity:0}

.glass{background:var(--panel);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--stroke)}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;gap:18px;
  padding:12px clamp(14px,4vw,34px);border-bottom:1px solid var(--stroke)}
.brand{display:flex;align-items:center;gap:9px;font-family:var(--display);font-size:19px;font-weight:800;letter-spacing:-.5px}
.brand .leaf{filter:drop-shadow(0 3px 8px rgba(16,185,129,.6))}
.nav-links{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 14px;border-radius:11px;color:var(--muted);font-weight:600;font-size:14.5px;transition:.18s}
.nav-links a:hover{color:var(--ink);background:var(--panel)}
.nav-links a.on{color:#04140d;background:linear-gradient(135deg,var(--brand),var(--brand2))}
.nav-user{display:flex;align-items:center;gap:10px;margin-left:10px;padding-left:14px;border-left:1px solid var(--stroke)}
.nav-user-name{font-size:14px;font-weight:600}
.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#04140d;font-weight:800;font-size:13px;box-shadow:0 6px 16px -6px rgba(0,0,0,.6)}
.logout{color:var(--muted);display:grid;place-items:center;width:34px;height:34px;border-radius:10px}
.logout:hover{color:var(--rose);background:var(--panel)}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;color:var(--ink);cursor:pointer}

/* ---------- layout ---------- */
.main{max-width:1180px;margin:0 auto;padding:clamp(18px,3vw,36px) clamp(14px,4vw,34px) 60px}
.main-auth{min-height:100dvh;display:grid;place-items:center;padding:24px}
.foot{max-width:1180px;margin:0 auto;padding:26px 34px;display:flex;flex-wrap:wrap;gap:6px;justify-content:space-between;
  color:var(--faint);font-size:12.5px;border-top:1px solid var(--stroke)}

/* ---------- hero / headings ---------- */
.page-head{margin:6px 0 22px}
.page-head h1{font-family:var(--display);font-size:clamp(24px,4vw,34px);font-weight:800;letter-spacing:-1px;margin:0}
.page-head p{margin:6px 0 0;color:var(--muted)}
.grad{background:linear-gradient(120deg,var(--brand2),var(--indigo));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- search ---------- */
.searchbar{position:relative;display:flex;align-items:center;gap:12px;padding:6px 6px 6px 18px;
  border-radius:999px;background:var(--panel);border:1px solid var(--stroke2);box-shadow:var(--shadow)}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(16,185,129,.16)}
.searchbar svg{color:var(--muted);flex:none}
.searchbar input{flex:1;background:none;border:0;outline:0;color:var(--ink);font-size:16px;padding:12px 0}
.searchbar input::placeholder{color:var(--faint)}
.searchbar .btn{padding:11px 22px}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 4px}
.filter{padding:7px 13px;border-radius:999px;border:1px solid var(--stroke);background:var(--panel);
  color:var(--muted);font-size:13px;font-weight:600;cursor:pointer;transition:.16s}
.filter:hover{color:var(--ink);border-color:var(--stroke2)}
.filter.on{color:#04140d;background:linear-gradient(135deg,var(--brand),var(--brand2));border-color:transparent}

/* ---------- cards / grid ---------- */
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.card{background:var(--panel);border:1px solid var(--stroke);border-radius:var(--radius-lg);padding:18px;
  transition:transform .2s cubic-bezier(.2,.8,.2,1),border-color .2s,box-shadow .2s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(400px 120px at 20% 0,rgba(16,185,129,.10),transparent);opacity:0;transition:.25s}
.card:hover{transform:translateY(-4px);border-color:var(--stroke2);box-shadow:var(--shadow)}
.card:hover::before{opacity:1}
.card h3{font-family:var(--display);font-size:17px;margin:0 0 2px;font-weight:700}
.card .sci{font-style:italic;color:var(--brand2);font-size:13.5px;margin-bottom:10px}
.card .meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}

/* chips / badges */
.chip{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:999px;font-size:12px;
  font-weight:600;background:var(--panel);border:1px solid var(--stroke);color:var(--muted)}
.chip.brand{background:rgba(16,185,129,.14);border-color:rgba(16,185,129,.3);color:var(--brand2)}
.chip.indigo{background:rgba(99,102,241,.14);border-color:rgba(99,102,241,.3);color:#a5b4fc}
.badge-tox{background:rgba(239,68,68,.15);border:1px solid rgba(239,68,68,.4);color:#fca5a5;
  padding:4px 10px;border-radius:999px;font-size:11.5px;font-weight:700;display:inline-flex;gap:5px;align-items:center}
.badge-safe{background:rgba(16,185,129,.14);border:1px solid rgba(16,185,129,.3);color:var(--brand2);
  padding:4px 10px;border-radius:999px;font-size:11.5px;font-weight:700}

/* ---------- buttons / forms ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;border:0;
  font-family:var(--font);font-weight:700;font-size:14.5px;padding:12px 20px;border-radius:12px;
  color:#04140d;background:linear-gradient(135deg,var(--brand),var(--brand2));transition:.18s;white-space:nowrap}
.btn:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 26px -12px var(--brand)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:var(--panel);color:var(--ink);border:1px solid var(--stroke2)}
.btn.ghost:hover{border-color:var(--brand);box-shadow:none;color:var(--brand2)}
.btn.danger{background:linear-gradient(135deg,#ef4444,#f87171);color:#fff}
.btn.sm{padding:8px 14px;font-size:13px;border-radius:10px}
.btn[disabled]{opacity:.6;pointer-events:none}
.btn .spin{width:15px;height:15px;border:2px solid rgba(0,0,0,.3);border-top-color:#04140d;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.field{margin-bottom:15px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:7px}
.input,textarea,select{width:100%;background:rgba(255,255,255,.03);border:1px solid var(--stroke2);border-radius:12px;
  color:var(--ink);font:inherit;font-size:15px;padding:12px 14px;transition:.16s;outline:0}
.input:focus,textarea:focus,select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(16,185,129,.15);background:rgba(255,255,255,.05)}
textarea{min-height:96px;resize:vertical}
.input::placeholder{color:var(--faint)}
.hint{font-size:12.5px;color:var(--faint);margin-top:6px}
.pw-wrap{position:relative}
.pw-wrap .toggle{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--muted);cursor:pointer;background:none;border:0}

/* ---------- auth card ---------- */
.auth{width:min(440px,100%);animation:rise .5s cubic-bezier(.2,.8,.2,1)}
.auth .logo{text-align:center;margin-bottom:22px}
.auth .logo .mark{font-size:40px;filter:drop-shadow(0 6px 18px rgba(16,185,129,.6))}
.auth .logo h1{font-family:var(--display);font-size:26px;font-weight:800;margin:8px 0 2px;letter-spacing:-.5px}
.auth .logo p{color:var(--muted);margin:0;font-size:14px}
.auth-card{background:var(--panel);border:1px solid var(--stroke2);border-radius:var(--radius-lg);padding:clamp(22px,4vw,32px);box-shadow:var(--shadow)}
.auth-alt{text-align:center;margin-top:18px;color:var(--muted);font-size:14px}
.auth-alt a{color:var(--brand2);font-weight:600}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* ---------- stats ---------- */
.stats{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));margin-bottom:22px}
.stat{background:var(--panel);border:1px solid var(--stroke);border-radius:var(--radius);padding:18px;position:relative;overflow:hidden}
.stat .k{font-size:12.5px;color:var(--muted);font-weight:600;letter-spacing:.3px;text-transform:uppercase}
.stat .v{font-family:var(--display);font-size:30px;font-weight:800;margin-top:4px;letter-spacing:-1px}
.stat .ic{position:absolute;right:14px;top:14px;font-size:22px;opacity:.5}
.stat.g1{border-color:rgba(16,185,129,.25)} .stat.g1 .v{color:var(--brand2)}
.stat.g2{border-color:rgba(99,102,241,.25)} .stat.g2 .v{color:#a5b4fc}
.stat.g3{border-color:rgba(245,158,11,.25)} .stat.g3 .v{color:#fbbf24}
.stat.g4{border-color:rgba(251,113,133,.25)} .stat.g4 .v{color:#fda4af}

/* ---------- detail page ---------- */
.detail-head{display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:flex-start;margin-bottom:20px}
.detail-head .sci{font-style:italic;color:var(--brand2);font-size:16px;margin-top:2px}
.sections{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.panel{background:var(--panel);border:1px solid var(--stroke);border-radius:var(--radius);padding:18px 20px}
.panel h4{margin:0 0 12px;font-family:var(--display);font-size:14px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);display:flex;align-items:center;gap:8px}
.panel .chipset{display:flex;flex-wrap:wrap;gap:7px}
.panel.tox{border-color:rgba(239,68,68,.3);background:rgba(239,68,68,.05)}
.panel.tox h4{color:#fca5a5}
.kv{display:flex;gap:10px;padding:7px 0;border-bottom:1px solid var(--stroke);font-size:14px}
.kv:last-child{border:0} .kv .k{color:var(--muted);min-width:120px;font-weight:600}

/* literature (ajax) */
.lit-item{padding:14px 0;border-bottom:1px solid var(--stroke)}
.lit-item:last-child{border:0}
.lit-item .t{font-weight:600;font-size:14.5px;margin-bottom:3px}
.lit-item .m{font-size:12.5px;color:var(--faint)}
.lit-item .ab{font-size:13px;color:var(--muted);margin-top:6px;max-height:0;overflow:hidden;transition:max-height .3s}
.lit-item.open .ab{max-height:400px}

/* ---------- tables (admin) ---------- */
.table-wrap{background:var(--panel);border:1px solid var(--stroke);border-radius:var(--radius);overflow:auto}
table.tbl{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
table.tbl th{position:sticky;top:0;background:var(--panel-solid);text-align:left;padding:13px 14px;color:var(--muted);
  font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.4px;border-bottom:1px solid var(--stroke2)}
table.tbl td{padding:12px 14px;border-bottom:1px solid var(--stroke)}
table.tbl tr:hover td{background:rgba(255,255,255,.02)}
table.tbl tr:last-child td{border-bottom:0}
.row-actions{display:flex;gap:6px}
.icon-btn{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:var(--panel);border:1px solid var(--stroke);color:var(--muted);cursor:pointer;transition:.15s}
.icon-btn:hover{color:var(--ink);border-color:var(--stroke2)}
.icon-btn.del:hover{color:var(--rose);border-color:rgba(251,113,133,.4)}
.pill{font-size:11.5px;padding:3px 9px;border-radius:999px;font-weight:700}
.pill.admin{background:rgba(16,185,129,.15);color:var(--brand2)}
.pill.user{background:rgba(99,102,241,.15);color:#a5b4fc}
.pill.active{background:rgba(16,185,129,.15);color:var(--brand2)}
.pill.suspended{background:rgba(239,68,68,.15);color:#fca5a5}

/* admin shell */
.admin-shell{display:grid;grid-template-columns:220px 1fr;gap:22px}
.side{position:sticky;top:80px;align-self:start;background:var(--panel);border:1px solid var(--stroke);border-radius:var(--radius);padding:12px}
.side a{display:flex;align-items:center;gap:10px;padding:11px 13px;border-radius:11px;color:var(--muted);font-weight:600;font-size:14px}
.side a:hover{background:var(--panel);color:var(--ink)}
.side a.on{background:linear-gradient(135deg,rgba(16,185,129,.16),rgba(99,102,241,.12));color:var(--ink)}

/* charts */
.bars{display:flex;flex-direction:column;gap:9px}
.bar-row{display:grid;grid-template-columns:140px 1fr 46px;gap:10px;align-items:center;font-size:13px}
.bar-row .lab{color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar-track{height:9px;border-radius:99px;background:rgba(255,255,255,.06);overflow:hidden}
.bar-fill{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--brand2));width:0;transition:width 1s cubic-bezier(.2,.8,.2,1)}
.bar-fill.i{background:linear-gradient(90deg,var(--indigo),#a5b4fc)}
.bar-row .val{text-align:right;color:var(--ink);font-weight:600}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;top:18px;transform:translateX(-50%) translateY(-20px);z-index:9998;
  padding:13px 20px;border-radius:12px;font-weight:600;font-size:14px;opacity:0;
  background:var(--panel-solid);border:1px solid var(--stroke2);box-shadow:var(--shadow);animation:toastin .4s forwards}
.toast-ok{border-color:rgba(16,185,129,.4);color:var(--brand2)}
.toast-err{border-color:rgba(239,68,68,.4);color:#fca5a5}
@keyframes toastin{to{opacity:1;transform:translateX(-50%) translateY(0)}}

/* ---------- skeleton ---------- */
.skel{background:linear-gradient(100deg,rgba(255,255,255,.04) 30%,rgba(255,255,255,.09) 50%,rgba(255,255,255,.04) 70%);
  background-size:200% 100%;animation:sk 1.2s infinite;border-radius:8px}
@keyframes sk{to{background-position:-200% 0}}
.skel-card{height:150px;border-radius:var(--radius-lg)}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(16px)}
.reveal.in{opacity:1;transform:none;transition:.6s cubic-bezier(.2,.8,.2,1)}

.empty{text-align:center;padding:60px 20px;color:var(--muted)}
.empty .em{font-size:44px;margin-bottom:10px;opacity:.6}

/* ---------- responsive ---------- */
@media(max-width:860px){
  .admin-shell{grid-template-columns:1fr}
  .side{position:static;display:flex;overflow:auto;gap:6px}
  .side a{white-space:nowrap}
}
@media(max-width:680px){
  .nav-toggle{display:block}
  .nav-links{position:fixed;inset:56px 0 auto 0;flex-direction:column;align-items:stretch;gap:2px;padding:12px;
    background:var(--panel-solid);border-bottom:1px solid var(--stroke2);transform:translateY(-140%);transition:.3s;z-index:99}
  body.nav-open .nav-links{transform:none}
  .nav-user{margin:8px 0 0;padding:12px 0 0;border-left:0;border-top:1px solid var(--stroke)}
  .nav-user-name{margin-right:auto}
  .foot{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}