:root{
  --bg:#f3f5fa;
  --bg-grad:linear-gradient(180deg,#f3f5fa 0,#eef1f8 100%);
  --card:#fff;
  --text:#1f2330;
  --muted:#6b7280;
  --primary:#1a56db;
  --primary-soft:#e8efff;
  --primary-strong:#1543b6;
  --border:#e4e7ee;
  --border-strong:#d4d9e3;
  --danger:#c53030;
  --danger-soft:#fde8e8;
  --success:#15803d;
  --success-soft:#dcfce7;
  --warn:#a16207;
  --warn-soft:#fef3c7;
  --shadow-sm:0 1px 2px rgba(15,23,42,.04);
  --shadow:0 1px 3px rgba(15,23,42,.06),0 4px 16px rgba(15,23,42,.05);
  --radius:12px;
  --radius-sm:8px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;
  background:var(--bg-grad);
  color:var(--text);
  font-size:14px;
  line-height:1.5;
}
.hidden{display:none !important}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}

/* ---------- Buttons ---------- */
button{
  background:var(--primary);
  color:#fff;
  border:0;
  padding:9px 16px;
  border-radius:var(--radius-sm);
  cursor:pointer;
  font-size:14px;
  font-weight:500;
  font-family:inherit;
  transition:background .15s,box-shadow .15s,transform .05s;
  box-shadow:var(--shadow-sm);
}
button:hover{background:var(--primary-strong)}
button:active{transform:translateY(1px)}
button.secondary{background:#fff;color:var(--text);border:1px solid var(--border-strong)}
button.secondary:hover{background:#f8f9fc;border-color:#bcc3d1}
button.danger{background:var(--danger)}
button.danger:hover{background:#9b2424}
button.ghost{background:transparent;color:var(--muted);box-shadow:none;padding:6px 10px}
button.ghost:hover{background:#eef1f8;color:var(--text)}
button:disabled{opacity:.5;cursor:default;transform:none}

/* ---------- Forms ---------- */
input,textarea,select{
  width:100%;
  padding:9px 12px;
  border:1px solid var(--border-strong);
  border-radius:var(--radius-sm);
  font-size:14px;
  font-family:inherit;
  background:#fff;
  color:var(--text);
  transition:border-color .15s,box-shadow .15s;
}
input:focus,textarea:focus,select:focus{
  outline:0;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(26,86,219,.15);
}
textarea{min-height:96px;resize:vertical}
label{display:block;margin-bottom:14px;font-size:13px;font-weight:500;color:var(--muted)}
label > input,label > textarea,label > select{margin-top:6px;color:var(--text);font-weight:400}
label.check{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:0;
  font-weight:400;
  color:var(--text);
  cursor:pointer;
  user-select:none;
}
label.check input[type=checkbox]{
  width:auto;
  margin:0;
  accent-color:var(--primary);
  cursor:pointer;
}
.err{color:var(--danger);min-height:18px;font-size:13px}

/* ---------- Login ---------- */
.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.login .card{width:100%;max-width:380px}
.login .card h1{margin:0 0 16px 0;font-size:22px}

/* ---------- Header ---------- */
header{
  display:flex;
  align-items:center;
  gap:24px;
  padding:14px 28px;
  background:#fff;
  border-bottom:1px solid var(--border);
  position:sticky;
  top:0;
  z-index:5;
  box-shadow:var(--shadow-sm);
}
header .brand{
  font-weight:700;
  font-size:16px;
  letter-spacing:.2px;
  background:linear-gradient(135deg,#1a56db,#6b21a8);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
header nav{display:flex;gap:6px;flex:1;margin-left:8px}
header nav a{
  padding:8px 14px;
  border-radius:var(--radius-sm);
  color:var(--muted);
  font-weight:500;
  transition:background .15s,color .15s;
}
header nav a:hover{background:#f3f5fa;color:var(--text);text-decoration:none}
header nav a.active{background:var(--primary-soft);color:var(--primary)}
header .user{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted)}
header .user #user-email{font-weight:500;color:var(--text)}

/* ---------- Layout ---------- */
main{padding:28px;max-width:1100px;margin:0 auto}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:16px;flex-wrap:wrap}
.section-head h2{margin:0;font-size:22px;font-weight:600}

/* ---------- Cards ---------- */
.card{
  background:var(--card);
  padding:24px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.card + .card{margin-top:16px}
.card h3{
  margin:-24px -24px 20px;
  padding:14px 24px;
  font-size:13px;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:.6px;
  color:var(--muted);
  background:linear-gradient(180deg,#fafbfd,#f3f5fa);
  border-bottom:1px solid var(--border);
  border-radius:var(--radius) var(--radius) 0 0;
}
.card h3 + *{margin-top:0}

/* ---------- Lists / items ---------- */
.list{display:flex;flex-direction:column;gap:12px}
.item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px 20px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  align-items:flex-start;
  box-shadow:var(--shadow-sm);
  transition:border-color .15s,box-shadow .15s,transform .05s;
}
.item:hover{border-color:var(--border-strong);box-shadow:var(--shadow)}
.item > div:first-child{flex:1;min-width:0}
.item strong{font-size:15px;font-weight:600}
.item .meta{color:var(--muted);font-size:13px;margin-top:4px;word-break:break-word}
.item .meta.err{color:var(--danger)}
.item .actions{display:flex;gap:8px;flex-shrink:0;flex-wrap:wrap;justify-content:flex-end}

/* ---------- Modal ---------- */
.modal{
  position:fixed;
  inset:0;
  background:rgba(15,23,42,.5);
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:10;
  padding:24px;
  backdrop-filter:blur(2px);
}
.modal .card{width:100%;max-width:620px;max-height:90vh;overflow:auto}
.modal h2{margin:0 0 16px;font-size:20px}

/* ---------- Rows ---------- */
.row{display:flex;gap:12px;align-items:flex-start}
.row > *{flex:1;min-width:0}
.row.actions-end{justify-content:flex-end}
.row.actions-end > *{flex:0 0 auto}

/* ---------- Badges ---------- */
.badge{
  display:inline-block;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  background:var(--primary-soft);
  color:var(--primary);
  margin-right:6px;
  line-height:1.4;
}
.badge.off{background:#eef0f4;color:#5b6473}
.badge.err{background:var(--danger-soft);color:var(--danger)}
.badge.ok{background:var(--success-soft);color:var(--success)}
.badge.warn{background:var(--warn-soft);color:var(--warn)}

/* ---------- Tag input ---------- */
.tag-input{
  border:1px solid var(--border-strong);
  border-radius:var(--radius-sm);
  padding:6px;
  margin-top:6px;
  display:flex;
  gap:6px;
  flex-wrap:wrap;
  background:#fff;
  transition:border-color .15s,box-shadow .15s;
}
.tag-input:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,86,219,.15)}
.tag-input input{border:0;flex:1;min-width:140px;padding:4px 6px;outline:none;box-shadow:none}
.tag-input input:focus{box-shadow:none}
.tag{
  background:var(--primary-soft);
  color:var(--primary);
  padding:3px 10px;
  border-radius:999px;
  font-size:13px;
  display:inline-flex;
  gap:6px;
  align-items:center;
  font-weight:500;
}
.tag button{
  background:transparent;
  color:var(--primary);
  padding:0;
  font-size:16px;
  line-height:1;
  box-shadow:none;
  width:18px;
  height:18px;
  border-radius:50%;
}
.tag button:hover{background:rgba(26,86,219,.15)}

/* ---------- Responsive ---------- */
@media (max-width:720px){
  header{padding:12px 16px;gap:12px;flex-wrap:wrap}
  header nav{order:3;flex-basis:100%;overflow-x:auto}
  main{padding:16px}
  .row{flex-direction:column;gap:14px}
  .item{flex-direction:column}
  .item .actions{width:100%;justify-content:flex-start}
  .card h3{margin:-24px -24px 16px;padding:12px 20px}
}