:root{
  /* Core */
  --bg: #f6f8fc;
  --surface: #ffffff;
  --surface-2: #fbfcff;
  --text: #0b1220;
  --muted: rgba(11,18,32,.62);

  --border: rgba(20,32,55,.12);
  --border-2: rgba(20,32,55,.18);

  --brand: #2f6bff;
  --brand-2: #1f4fe6;

  --good: #18a957;
  --warn: #ffb020;
  --bad: #e23d4f;

  --shadow: 0 14px 40px rgba(18, 28, 45, .10);

  --radius: 18px;
  --radius-sm: 12px;

  --max: 1180px;
  --font: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;

  --gap: 16px;
  --gap-lg: 22px;

  --sidebar: 280px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, rgba(47,107,255,.14), transparent 55%),
              radial-gradient(900px 500px at 90% 0%, rgba(24,169,87,.10), transparent 60%),
              var(--bg);
}

/* Links */
a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:underline; }

/* Layout */
.shell{
  min-height:100vh;
  display:grid;
  grid-template-columns: var(--sidebar) 1fr;
}

.sidebar{
  position:sticky;
  top:0;
  height:100vh;
  padding:18px;
  border-right: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.78));
  backdrop-filter: blur(10px);
}

.main{
  padding: 22px;
}

.container{
  max-width: var(--max);
  margin: 0 auto;
}

/* Sidebar */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding: 12px 12px 16px;
}

.logo{
  width:38px; height:38px;
  border-radius: 12px;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.85), transparent 55%),
              linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 14px 30px rgba(47,107,255,.22);
  border: 1px solid rgba(255,255,255,.65);
}

.brand h1{
  margin:0;
  font-size: 14px;
  line-height: 1.1;
}
.brand small{
  display:block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 3px;
}

.nav{
  margin-top: 10px;
  display:flex;
  flex-direction:column;
  gap:8px;
}

.nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding: 11px 12px;
  border-radius: 14px;
  color: rgba(11,18,32,.82);
  border: 1px solid transparent;
}

.nav a:hover{
  background: rgba(47,107,255,.06);
  border-color: rgba(47,107,255,.16);
  text-decoration:none;
}

.nav a.active{
  background: rgba(47,107,255,.10);
  border-color: rgba(47,107,255,.22);
  color: rgba(11,18,32,.92);
}

.nav .pill{
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: rgba(11,18,32,.72);
  background: rgba(255,255,255,.7);
}

.sidebar .spacer{
  height: 14px;
}

.sidebar .meta{
  position:absolute;
  left:18px; right:18px; bottom:18px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  display:flex;
  justify-content:space-between;
  gap:12px;
}

/* Topbar */
.topbar{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.hgroup h2{
  margin:0;
  font-size: 20px;
  letter-spacing: -0.2px;
}
.hgroup p{
  margin:6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

/* Cards / Panels */
.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: var(--gap-lg);
}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.86));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}

.card .hd{
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}

.card .hd h3{
  margin:0;
  font-size: 14px;
  color: rgba(11,18,32,.86);
}

.card .bd{
  padding: 16px;
}

.split{
  display:grid;
  grid-template-columns: 1.35fr .65fr;
  gap: var(--gap-lg);
}

/* Stats */
.stats{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}
.stat{
  background: rgba(255,255,255,.78);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  min-height: 86px;
}
.stat .k{
  color: var(--muted);
  font-size: 12px;
}
.stat .v{
  margin-top: 8px;
  font-size: 22px;
  font-weight: 650;
  letter-spacing: -0.3px;
}
.stat .sub{
  margin-top: 6px;
  color: rgba(11,18,32,.62);
  font-size: 12px;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border-2);
  background: rgba(255,255,255,.85);
  color: rgba(11,18,32,.88);
  font-size: 13px;
  cursor:pointer;
  box-shadow: 0 10px 25px rgba(18,28,45,.06);
}
.btn:hover{
  background: rgba(255,255,255,.98);
}
.btn.primary{
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  border-color: rgba(47,107,255,.28);
  color: #fff;
}
.btn.primary:hover{
  filter: brightness(1.02);
}
.btn.ghost{
  background: transparent;
  box-shadow:none;
}
.btn.danger{
  background: rgba(226,61,79,.10);
  border-color: rgba(226,61,79,.22);
  color: rgba(226,61,79,.92);
}
.btn.warning{
  background: rgba(226,61,79,.10);
  border-color: rgba(226,61,79,.22);
  color: rgba(226, 174, 61, 0.92);
}

/* Forms */
.form{
  display:grid;
  gap: 12px;
}
.row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.field label{
  display:block;
  font-size: 12px;
  color: rgba(11,18,32,.72);
  margin-bottom: 6px;
}
.input, .select, .textarea{
  width:100%;
  padding: 11px 12px;
  border-radius: 14px;
  border: 1px solid var(--border-2);
  background: rgba(255,255,255,.86);
  color: rgba(11,18,32,.92);
  outline: none;
}
.textarea{ min-height: 140px; resize: vertical; }
.input:focus, .select:focus, .textarea:focus{
  border-color: rgba(47,107,255,.40);
  box-shadow: 0 0 0 4px rgba(47,107,255,.10);
}

.help{
  color: var(--muted);
  font-size: 12px;
  margin-top: 6px;
}

/* Table */
.table-tools{
  display:flex;
  gap: 10px;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  margin-bottom: 10px;
}
.table-tools .left{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
}
.table-tools .right{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
  justify-content:flex-end;
}

.table{
  width:100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow:hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.82);
}

.table th, .table td{
  padding: 12px 12px;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.table th{
  text-align:left;
  color: rgba(11,18,32,.70);
  background: rgba(255,255,255,.9);
  font-weight: 650;
}

.table tr:last-child td{ border-bottom:none; }

.table .subject{
  font-weight: 650;
  color: rgba(11,18,32,.92);
}
.table .subline{
  display:block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

/* Badges */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.8);
  color: rgba(11,18,32,.78);
}
.b-new{ background: rgba(47,107,255,.10); border-color: rgba(47,107,255,.24); color: rgba(31,79,230,.95); }
.b-open{ background: rgba(47,107,255,.06); border-color: rgba(47,107,255,.18); color: rgba(11,18,32,.85); }
.b-wait-c{ background: rgba(255,176,32,.12); border-color: rgba(255,176,32,.26); color: rgba(140,92,0,.92); }
.b-wait-s{ background: rgba(47,107,255,.12); border-color: rgba(47,107,255,.26); color: rgba(31,79,230,.95); }
.b-solved{ background: rgba(24,169,87,.12); border-color: rgba(24,169,87,.24); color: rgba(18,120,60,.95); }
.b-closed{ background: rgba(11,18,32,.06); border-color: rgba(11,18,32,.18); color: rgba(11,18,32,.78); }

.p-low{ background: rgba(11,18,32,.06); }
.p-normal{ background: rgba(47,107,255,.10); border-color: rgba(47,107,255,.22); color: rgba(31,79,230,.95); }
.p-high{ background: rgba(255,176,32,.14); border-color: rgba(255,176,32,.26); color: rgba(140,92,0,.92); }
.p-critical{ background: rgba(226,61,79,.14); border-color: rgba(226,61,79,.26); color: rgba(163,24,39,.95); }

/* Ticket detail layout */
.ticket{
  display:grid;
  grid-template-columns: 1.35fr .65fr;
  gap: var(--gap-lg);
}

.timeline{
  display:grid;
  gap: 12px;
}
.item{
  border: 1px solid var(--border);
  background: rgba(255,255,255,.86);
  border-radius: var(--radius);
  overflow:hidden;
}
.item .ih{
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  background: rgba(255,255,255,.92);
}
.item .ih .who{
  display:flex;
  align-items:center;
  gap:10px;
  min-width: 0;
}
.avatar{
  width:30px; height:30px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(47,107,255,.20), rgba(24,169,87,.16));
  border: 1px solid rgba(20,32,55,.10);
}
.item .ih .who strong{
  font-size: 13px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.item .ih .who span{
  display:block;
  font-size: 12px;
  color: var(--muted);
}
.item .ib{
  padding: 12px;
  font-size: 13px;
  line-height: 1.55;
  color: rgba(11,18,32,.88);
}
.item.internal{
  border-color: rgba(255,176,32,.28);
  background: rgba(255,176,32,.08);
}
.item.internal .ih{
  background: rgba(255,176,32,.10);
}

/* Side panel blocks */
.block{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.86);
  overflow:hidden;
}
.block .bh{
  padding: 12px;
  border-bottom: 1px solid var(--border);
  font-weight: 650;
  font-size: 13px;
  color: rgba(11,18,32,.82);
  background: rgba(255,255,255,.92);
}
.block .bb{
  padding: 12px;
  display:grid;
  gap: 10px;
}

.kv{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 12px;
  font-size: 13px;
  color: rgba(11,18,32,.86);
}
.kv span{
  color: var(--muted);
  font-size: 12px;
}
.kv .v{
  text-align:right;
  max-width: 60%;
}

/* Auth pages */
.auth{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding: 22px;
}

.auth-card{
  width: min(460px, 100%);
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.86));
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
  overflow:hidden;
}

.auth-card .top{
  padding: 18px 18px 0;
  display:flex;
  align-items:center;
  gap:12px;
}
.auth-card .top h2{
  margin:0;
  font-size: 18px;
}
.auth-card .top p{
  margin:6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.auth-card .body{
  padding: 16px 18px 18px;
}

.footer-note{
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
  text-align:center;
}

/* Responsive */
@media (max-width: 980px){
  .shell{ grid-template-columns: 1fr; }
  .sidebar{
    position:relative;
    height:auto;
    border-right:none;
    border-bottom: 1px solid var(--border);
  }
  .sidebar .meta{
    position:relative;
    left:auto; right:auto; bottom:auto;
    margin-top: 12px;
  }
  .split, .ticket{
    grid-template-columns: 1fr;
  }
  .stats{
    grid-template-columns: repeat(2, 1fr);
  }
  .row{
    grid-template-columns: 1fr;
  }
}