:root{
  --bg:#f6f7f9; --surface:#ffffff; --ink:#12141a; --muted:#6b7280;
  --line:#e6e8ec; --brand:#ff5a2c; --brand-dark:#e8451a; --brand-soft:#fff1ec;
  --green:#1a9d63; --green-soft:#e7f6ee; --amber:#b5820a; --amber-soft:#fdf3dc;
  --violet:#6d43c9; --violet-soft:#efe9fb; --blue:#1d6fd6; --blue-soft:#e6f0fc;
  --red:#d13b32; --red-soft:#fdeae8; --gray:#5b6472; --gray-soft:#eef0f3;
  --radius:14px; --shadow:0 1px 2px rgba(16,20,30,.04),0 8px 24px rgba(16,20,30,.06);
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Helvetica,Arial,sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.2;letter-spacing:-.02em;margin:0 0 .4em}
.muted{color:var(--muted)}
.container{max-width:1080px;margin:0 auto;padding:0 20px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;justify-content:center;
  padding:.66rem 1.1rem;border-radius:10px;border:1px solid transparent;
  font-weight:600;font-size:.95rem;cursor:pointer;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:#cfd3da}
.btn-danger{background:var(--red-soft);color:var(--red)}
.btn-danger:hover{background:#f9d9d5}
.btn-block{width:100%}
.btn-lg{padding:.85rem 1.5rem;font-size:1.05rem}
.btn-sm{padding:.4rem .7rem;font-size:.85rem}

/* Forms */
label{display:block;font-weight:600;font-size:.9rem;margin:0 0 .35rem}
.field{margin-bottom:1.1rem}
input[type=text],input[type=email],input[type=password],select{
  width:100%;padding:.7rem .85rem;border:1px solid var(--line);border-radius:10px;
  background:#fff;font-size:.98rem;transition:.15s}
input:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.hint{font-size:.82rem;color:var(--muted);margin-top:.35rem}

/* Cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1.4rem}
.card + .card{margin-top:1rem}
.card-title{font-size:1.05rem;font-weight:700;margin-bottom:.2rem}

/* Flash */
.flashes{margin:1rem 0}
.flash{padding:.8rem 1rem;border-radius:10px;margin-bottom:.6rem;font-size:.92rem;font-weight:500}
.flash.success{background:var(--green-soft);color:var(--green)}
.flash.danger{background:var(--red-soft);color:var(--red)}
.flash.warning{background:var(--amber-soft);color:var(--amber)}
.flash.info{background:var(--blue-soft);color:var(--blue)}

/* Badges */
.badge{display:inline-block;padding:.2rem .6rem;border-radius:999px;font-size:.78rem;font-weight:700}
.badge.green{background:var(--green-soft);color:var(--green)}
.badge.amber{background:var(--amber-soft);color:var(--amber)}
.badge.violet{background:var(--violet-soft);color:var(--violet)}
.badge.blue{background:var(--blue-soft);color:var(--blue)}
.badge.red{background:var(--red-soft);color:var(--red)}
.badge.gray{background:var(--gray-soft);color:var(--gray)}

/* Tables */
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:.7rem .6rem;border-bottom:1px solid var(--line);font-size:.92rem}
th{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
tr:last-child td{border-bottom:none}

/* ─── Public nav / landing ─── */
.nav{display:flex;align-items:center;justify-content:space-between;padding:1.1rem 0}
.brand{display:flex;align-items:center;gap:.55rem;font-weight:800;font-size:1.15rem;letter-spacing:-.02em}
.brand .dot{width:12px;height:12px;border-radius:4px;background:var(--brand);display:inline-block}
.hero{padding:4rem 0 3rem;text-align:center}
.hero h1{font-size:clamp(2rem,5vw,3.4rem);font-weight:800}
.hero p{font-size:1.15rem;color:var(--muted);max-width:620px;margin:1rem auto 2rem}
.hero .btn{margin:0 .3rem}
.pill{display:inline-block;background:var(--brand-soft);color:var(--brand-dark);
  padding:.35rem .8rem;border-radius:999px;font-weight:700;font-size:.85rem;margin-bottom:1.3rem}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:2.5rem 0}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem}
.feature .ic{font-size:1.6rem}
.feature h3{font-size:1.05rem;margin:.6rem 0 .3rem}
.feature p{color:var(--muted);font-size:.92rem;margin:0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.5rem 0 3rem}
.step{padding:1.2rem;border-left:3px solid var(--brand);background:var(--surface);border-radius:0 10px 10px 0}
.step .n{font-weight:800;color:var(--brand);font-size:.9rem}
footer{border-top:1px solid var(--line);padding:2rem 0;color:var(--muted);font-size:.9rem;text-align:center}

/* ─── Auth ─── */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem 1rem}
.auth-card{width:100%;max-width:420px}
.auth-card .brand{justify-content:center;margin-bottom:1.4rem}
.auth-alt{text-align:center;margin-top:1.2rem;color:var(--muted);font-size:.92rem}

/* ─── Panel layout ─── */
.layout{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.sidebar{background:#12141a;color:#c9cdd6;padding:1.4rem 1rem;display:flex;flex-direction:column}
.sidebar .brand{color:#fff;margin-bottom:1.8rem;padding:0 .4rem}
.sidebar nav{display:flex;flex-direction:column;gap:.2rem;flex:1}
.sidebar a{padding:.62rem .8rem;border-radius:9px;font-weight:600;font-size:.95rem;color:#c9cdd6;display:flex;gap:.6rem;align-items:center;transition:.12s}
.sidebar a:hover{background:#20242e;color:#fff}
.sidebar a.active{background:var(--brand);color:#fff}
.sidebar .foot{border-top:1px solid #262a34;padding-top:1rem;margin-top:1rem;font-size:.86rem}
.sidebar .foot a{padding:.4rem .8rem}
.main{padding:2rem;overflow:auto}
.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.4rem;gap:1rem;flex-wrap:wrap}
.page-head h1{font-size:1.6rem;margin:0}

/* Stat grid */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:1.4rem}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.1rem 1.2rem;box-shadow:var(--shadow)}
.stat .v{font-size:1.7rem;font-weight:800;letter-spacing:-.02em}
.stat .l{color:var(--muted);font-size:.86rem;font-weight:600}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.row{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.7rem 0;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:none}
.inline{display:flex;gap:.5rem;align-items:center}
.toggle-line{display:flex;align-items:center;gap:.6rem;padding:.4rem 0}
.toggle-line input{width:auto}
.empty{text-align:center;padding:2.5rem 1rem;color:var(--muted)}
.code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--gray-soft);
  padding:.75rem .9rem;border-radius:9px;font-size:.86rem;word-break:break-all;user-select:all}
.status-dot{width:9px;height:9px;border-radius:50%;display:inline-block}
.status-dot.on{background:var(--green)} .status-dot.off{background:var(--muted)}

@media(max-width:860px){
  .layout{grid-template-columns:1fr}
  .sidebar{flex-direction:row;flex-wrap:wrap;position:sticky;top:0;z-index:10}
  .sidebar nav{flex-direction:row;flex-wrap:wrap}
  .sidebar .brand{margin-bottom:0;width:100%}
  .sidebar .foot{border:none;margin:0;padding:0}
  .features,.steps,.stats,.grid-2{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
}