:root{
  --bg0:#070a12;
  --bg1:#0b1530;
  --card: rgba(255,255,255,.06);
  --card2: rgba(255,255,255,.085);
  --border: rgba(255,255,255,.12);
  --text:#eaf1ff;
  --muted:#a8b3cf;
  --brand:#6ea8fe;
  --brand2:#8a5cff;
  --danger:#ff4d5a;
  --success:#23c55e;
  --shadow: 0 16px 42px rgba(0,0,0,.35);
  --radius:14px;
}

*{ box-sizing:border-box; }

html,body{ height:100%; }

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  background:
    radial-gradient(1100px 520px at 15% 10%, rgba(110,168,254,.28), transparent 60%),
    radial-gradient(900px 480px at 85% 25%, rgba(138,92,255,.22), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  color:var(--text);
  padding:20px;
}

a{ color:var(--brand); text-decoration:none; }
a:hover{ text-decoration:underline; }

.container{
  max-width:980px;
  margin:0 auto;
}

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  margin-bottom:16px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
}
.brand img{
  width:38px;
  height:38px;
}
.brand strong{
  font-size:18px;
  letter-spacing:.3px;
}
.nav{
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
}
.nav form{ display:inline; }

.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.card .card{ background: var(--card2); }

.muted{
  color: var(--muted);
  font-size:14px;
}

.row{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

input, textarea, button{
  width:100%;
  padding:10px;
  border-radius:10px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.22);
  color: var(--text);
  box-sizing:border-box;
  margin-top:6px;
}

input[type="checkbox"]{
  width:auto;
  margin-top:0;
}

button{
  cursor:pointer;
  font-weight:700;
  font-size:14px;
  transition: transform .12s ease, filter .12s ease, background .12s ease;
}
button:hover{ filter: brightness(1.06); }
button:active{ transform: translateY(1px); }

select{
  width:100%;
  padding:10px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(0,0,0,.22);
  color:var(--text);
  margin-top:6px;
}

label{
  display:block;
  font-size:14px;
  font-weight:600;
  margin-bottom:12px;
}

/* ——— Buttons ——— */
.btn,
a.btn,
button.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  width:auto;
  min-height:40px;
  padding:10px 16px;
  border-radius:10px;
  border:1px solid transparent;
  font-weight:700;
  font-size:14px;
  line-height:1.2;
  text-decoration:none;
  cursor:pointer;
  white-space:nowrap;
}
a.btn:hover{ text-decoration:none; }

.btn-primary,
button[type="submit"]:not(.btn-secondary):not(.btn-outline):not(.btn-danger):not(.btn-ghost){
  background:linear-gradient(135deg, var(--brand), var(--brand2));
  border:0;
  color:#fff;
}

.btn-secondary{
  background:rgba(255,255,255,.1);
  border-color:var(--border);
  color:var(--text);
}

.btn-outline{
  background:transparent;
  border-color:var(--border);
  color:var(--text);
}
.btn-outline:hover{
  background:rgba(255,255,255,.08);
}

.btn-danger{
  background:var(--danger);
  border:0;
  color:#fff;
}

.btn-ghost{
  background:transparent;
  border:0;
  color:var(--muted);
  padding:8px 10px;
}
.btn-ghost:hover{ color:var(--text); background:rgba(255,255,255,.06); }

.btn-sm{
  min-height:34px;
  padding:7px 12px;
  font-size:13px;
}

.btn-block{ width:100%; }

.btn-group{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.btn-group--segmented .btn,
.btn-group--segmented .btn-outline{
  border-radius:0;
  margin:0;
}
.btn-group--segmented > :first-child{ border-radius:10px 0 0 10px; }
.btn-group--segmented > :last-child{ border-radius:0 10px 10px 0; }
.btn-group--segmented .is-active{
  background:rgba(110,168,254,.22);
  border-color:rgba(110,168,254,.5);
  color:#fff;
}

/* ——— Top navigation ——— */
.nav-btn{
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  border-radius:10px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  color:var(--text);
  text-decoration:none;
  font-size:14px;
  font-weight:600;
}
.nav-btn:hover{
  background:rgba(255,255,255,.1);
  text-decoration:none;
}
.nav-btn.is-active{
  background:rgba(110,168,254,.2);
  border-color:rgba(110,168,254,.45);
}
.nav-btn--primary{
  background:linear-gradient(135deg, var(--brand), var(--brand2));
  border:0;
  color:#fff;
}
.nav-btn--primary:hover{ filter:brightness(1.06); text-decoration:none; }

/* ——— Cabinet layout ——— */
.cabinet-layout{
  display:grid;
  grid-template-columns:minmax(200px, 240px) minmax(0, 1fr);
  gap:16px;
  align-items:start;
}
@media (max-width: 760px){
  .cabinet-layout{ grid-template-columns:1fr; }
}

.cabinet-nav{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:12px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  position:sticky;
  top:16px;
}
@media (max-width: 760px){
  .cabinet-nav{
    flex-direction:row;
    flex-wrap:wrap;
    position:static;
  }
}
.cabinet-nav__item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:10px;
  color:var(--text);
  text-decoration:none;
  font-weight:600;
  font-size:14px;
  border:1px solid transparent;
}
.cabinet-nav__item:hover{
  background:rgba(255,255,255,.06);
  text-decoration:none;
}
.cabinet-nav__item.is-active{
  background:rgba(110,168,254,.18);
  border-color:rgba(110,168,254,.35);
}
.cabinet-nav__item--muted{ color:var(--muted); }
.cabinet-nav__icon{
  width:22px;
  text-align:center;
  opacity:.85;
}

.cabinet-main{ min-width:0; }

.panel-header{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:4px;
}
.panel-header h1{
  margin:0 0 6px;
  font-size:1.65rem;
  line-height:1.2;
}
.panel-toolbar{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:12px;
}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  align-items:center;
  font-size:13px;
  color:var(--muted);
  margin-bottom:12px;
}
.breadcrumb a{ color:var(--brand); }
.breadcrumb__sep{ opacity:.5; }

.stats-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(140px, 1fr));
  gap:10px;
  margin:14px 0;
}
.stat-box{
  padding:12px;
  border-radius:12px;
  background:rgba(0,0,0,.18);
  border:1px solid rgba(255,255,255,.08);
}
.stat-box__label{
  font-size:12px;
  color:var(--muted);
  margin-bottom:4px;
}
.stat-box__value{
  font-size:1.25rem;
  font-weight:800;
}

.challenge-grid{
  display:grid;
  gap:14px;
}
.challenge-item{
  padding:16px;
  border-radius:var(--radius);
  background:var(--card2);
  border:1px solid rgba(255,255,255,.08);
}
.challenge-item__head{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:12px;
  flex-wrap:wrap;
}
.challenge-item__title{
  margin:0 0 6px;
  font-size:1.2rem;
}
.challenge-item__title a{
  color:var(--text);
  text-decoration:none;
  font-weight:800;
}
.challenge-item__title a:hover{ color:var(--brand); text-decoration:none; }
.challenge-item__meta{
  margin:10px 0 12px;
}
.challenge-item__actions{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
  padding-top:14px;
  border-top:1px solid rgba(255,255,255,.08);
}

.badge{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
}
.badge--public{
  background:rgba(35,197,94,.15);
  border:1px solid rgba(35,197,94,.35);
  color:var(--success);
}
.badge--private{
  background:rgba(255,255,255,.06);
  border:1px solid var(--border);
  color:var(--muted);
}

.step-list{ list-style:none; margin:0; padding:0; display:grid; gap:10px; }
.step-item{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  padding:14px;
  border-radius:12px;
  background:rgba(0,0,0,.16);
  border:1px solid rgba(255,255,255,.08);
}
.step-item__main{ min-width:0; flex:1; }
.step-item__title{
  font-weight:700;
  margin-bottom:4px;
}
.step-item__title a{ color:var(--text); text-decoration:none; }
.step-item__title a:hover{ color:var(--brand); text-decoration:none; }

.form-section{
  margin-top:8px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.08);
}
.form-section h3{
  margin:0 0 12px;
  font-size:1rem;
}
.form-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:16px;
  align-items:center;
}

.empty-state{
  text-align:center;
  padding:32px 20px;
}
.empty-state h2{ margin:0 0 8px; }
.empty-state p{ margin:0 0 18px; color:var(--muted); }

.danger-zone{
  margin-top:20px;
  padding:16px;
  border-radius:12px;
  border:1px solid rgba(255,77,90,.35);
  background:rgba(255,77,90,.08);
}
.danger-zone h2{
  margin:0 0 8px;
  font-size:1rem;
  color:var(--danger);
}

.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:flex-end;
  margin-bottom:14px;
}
.filter-bar label{ margin:0; flex:1; min-width:140px; }
.filter-bar .btn{ flex:0 0 auto; margin-top:0; }

.copy-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  margin-top:8px;
}
.copy-row code{
  flex:1;
  min-width:200px;
  padding:8px 10px;
  border-radius:8px;
  background:rgba(0,0,0,.25);
  font-size:12px;
  word-break:break-all;
}

.bar{
  width:100%;
  height:18px;
  border-radius:999px;
  background: rgba(255,255,255,.12);
  overflow:hidden;
}
.bar > span{
  display:block;
  height:100%;
  background: linear-gradient(90deg, var(--brand), var(--brand2));
}

.alert{
  padding:10px 12px;
  border-radius:10px;
  margin-bottom:12px;
  border:1px solid rgba(255,255,255,.12);
}
.alert.error{
  background: rgba(255,77,90,.12);
  color: var(--danger);
  border-color: rgba(255,77,90,.35);
}
.alert.success{
  background: rgba(35,197,94,.12);
  color: var(--success);
  border-color: rgba(35,197,94,.35);
}

.list{ margin:0; padding-left:18px; }

.chip{
  display:inline-block;
  padding:4px 10px;
  border-radius:999px;
  background: rgba(110,168,254,.12);
  border:1px solid rgba(110,168,254,.25);
  margin-right:8px;
  font-size:13px;
}

.grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap:14px;
}

.admin-nav{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  padding:12px;
  margin-bottom:16px;
}
.admin-nav a{
  padding:8px 12px;
  border-radius:10px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  text-decoration:none;
  color:var(--text);
}
.admin-nav a:hover,
.admin-nav a.active{
  background:rgba(110,168,254,.18);
  border-color:rgba(110,168,254,.45);
  text-decoration:none;
}

.admin-table-wrap{ overflow-x:auto; }
.admin-table{
  width:100%;
  border-collapse:collapse;
}
.admin-table th,
.admin-table td{
  text-align:left;
  vertical-align:top;
  padding:12px 10px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.admin-table th{
  color:var(--muted);
  font-weight:600;
  font-size:13px;
}

.admin-actions{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.admin-actions form{ margin:0; }

.btn-link{
  display:inline-block;
  padding:8px 12px;
  border-radius:10px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  color:var(--text);
  text-decoration:none;
}
.btn-link:hover{
  background:rgba(255,255,255,.1);
  text-decoration:none;
}

.btn-danger{
  width:auto;
  padding:8px 12px;
  border:0;
  border-radius:10px;
  background:var(--danger);
  color:#fff;
  cursor:pointer;
}