:root {
  --navy: #122054; --navy-2: #0b1538; --teal: #178a8a; --teal-2: #126f6f; --teal-50: #e8f6f6;
  --ink: #142041; --muted: #5b6478; --line: #dfe4ee; --bg: #f5f7fb; --white: #fff;
  --red: #b42318; --red-50: #fdecea; --green: #157f3d; --green-50: #e7f6ec; --amber: #9a6700; --amber-50: #fff6e0;
  --radius: 12px; --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font: 15px/1.55 "Segoe UI", Inter, system-ui, -apple-system, sans-serif; color: var(--ink); background: var(--bg); }
a { color: var(--teal-2); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { color: var(--navy); line-height: 1.25; margin: 0 0 .5rem; }
h1 { font-size: 1.6rem; } h2 { font-size: 1.2rem; } h3 { font-size: 1rem; }
p { margin: .25rem 0 .75rem; }
code, pre { font-family: Consolas, "Cascadia Mono", monospace; font-size: .85rem; }
pre.log { background: #0f172a; color: #d6e2ff; padding: 1rem; border-radius: 10px; max-height: 420px; overflow: auto; white-space: pre-wrap; word-break: break-word; }

/* layout */
.shell { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.side { background: var(--navy); color: #c9d3ee; padding: 1.25rem 1rem; display: flex; flex-direction: column; gap: 1.25rem; }
.brand { display: flex; align-items: center; gap: .6rem; color: #fff; font-weight: 800; font-size: 1.05rem; }
.brand img { width: 40px; height: auto; }
.brand small { display: block; font-weight: 600; font-size: .68rem; letter-spacing: .14em; color: #8fd6d6; text-transform: uppercase; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav .label { font-size: .7rem; text-transform: uppercase; letter-spacing: .12em; color: #8090b8; margin: .8rem .6rem .3rem; }
.nav a { color: #d7def3; padding: .55rem .7rem; border-radius: 8px; font-weight: 500; }
.nav a:hover, .nav a.on { background: rgba(255, 255, 255, .1); color: #fff; text-decoration: none; }
.nav a.on { box-shadow: inset 3px 0 0 var(--teal); }
.side .me { margin-top: auto; font-size: .85rem; border-top: 1px solid rgba(255, 255, 255, .12); padding-top: 1rem; }
.side .me b { color: #fff; display: block; }
.side .me form { margin-top: .5rem; }
.main { padding: 1.75rem 2rem 3rem; max-width: 1200px; width: 100%; }
.topline { display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.topline p { color: var(--muted); margin: 0; }

/* cards & grids */
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow); margin-bottom: 1.25rem; }
.grid { display: grid; gap: 1rem; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.1rem; box-shadow: var(--shadow); }
.stat b { display: block; font-size: 1.6rem; color: var(--navy); }
.stat span { color: var(--muted); font-size: .85rem; }
.tool { display: flex; flex-direction: column; gap: .5rem; }
.tool .kind { font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--teal-2); }
.tool p { color: var(--muted); font-size: .9rem; flex: 1; }
.tool .row { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }

/* tables */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .6rem .7rem; border-bottom: 1px solid var(--line); vertical-align: top; font-size: .92rem; }
th { font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); background: #fafbfd; }
tr:last-child td { border-bottom: 0; }
.table-wrap { overflow-x: auto; }

/* forms */
label { display: block; font-weight: 600; font-size: .88rem; margin: .7rem 0 .25rem; color: var(--navy); }
input[type=text], input[type=email], input[type=password], input[type=url], input[type=file], textarea, select {
  width: 100%; padding: .6rem .7rem; border: 1px solid #c9d1e1; border-radius: 8px; font: inherit; background: #fff; color: var(--ink); }
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(23, 138, 138, .35); border-color: var(--teal); }
.check { display: flex; align-items: center; gap: .5rem; font-weight: 500; margin: .35rem 0; }
.check input { width: 18px; height: 18px; accent-color: var(--teal); }
.hint { color: var(--muted); font-size: .82rem; margin-top: .25rem; }
.btn { display: inline-flex; align-items: center; gap: .4rem; border: 1px solid transparent; background: var(--teal); color: #fff;
  padding: .55rem 1rem; border-radius: 8px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn:hover { background: var(--teal-2); text-decoration: none; }
.btn.navy { background: var(--navy); } .btn.navy:hover { background: var(--navy-2); }
.btn.ghost { background: #fff; color: var(--navy); border-color: var(--line); } .btn.ghost:hover { border-color: var(--teal); color: var(--teal-2); }
.btn.danger { background: var(--red); } .btn.danger:hover { background: #8f1c13; }
.btn.small { padding: .3rem .65rem; font-size: .85rem; }
.btn.link { background: none; color: #c9d3ee; padding: 0; border: 0; font-weight: 500; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1rem; }
form.inline { display: inline; }

/* messages & badges */
.msg { padding: .75rem 1rem; border-radius: 10px; margin-bottom: 1rem; font-weight: 500; }
.msg.ok { background: var(--green-50); color: var(--green); border: 1px solid #b7e2c4; }
.msg.err { background: var(--red-50); color: var(--red); border: 1px solid #f4c7c2; }
.msg.warn { background: var(--amber-50); color: var(--amber); border: 1px solid #f1d58f; }
.badge { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .75rem; font-weight: 700; background: #eef1f7; color: var(--muted); }
.badge.green { background: var(--green-50); color: var(--green); } .badge.red { background: var(--red-50); color: var(--red); }
.badge.amber { background: var(--amber-50); color: var(--amber); } .badge.teal { background: var(--teal-50); color: var(--teal-2); }
.secret-box { font: 700 1.4rem Consolas, monospace; letter-spacing: .06em; background: var(--teal-50); color: var(--navy); padding: .9rem 1.1rem; border-radius: 10px; border: 1px dashed var(--teal); display: inline-block; }
details.danger { border: 1px solid #f4c7c2; border-radius: 10px; padding: .75rem 1rem; background: #fffafa; }
details.danger summary { cursor: pointer; font-weight: 700; color: var(--red); }
.muted { color: var(--muted); }
.mt { margin-top: 1rem; }
.qr svg { width: 220px; height: 220px; background: #fff; padding: 8px; border: 1px solid var(--line); border-radius: 10px; }

/* auth pages */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem;
  background: radial-gradient(ellipse at top right, rgba(23, 138, 138, .35), transparent 55%), var(--navy); }
.auth .box { width: 100%; max-width: 420px; background: #fff; border-radius: 16px; padding: 2rem; box-shadow: 0 20px 50px rgba(0, 0, 0, .35); }
.auth .brand { color: var(--navy); margin-bottom: 1.25rem; }
.auth .brand small { color: var(--teal); }
.auth .btn { width: 100%; justify-content: center; margin-top: 1.1rem; padding: .7rem; }
.auth .foot { margin-top: 1.25rem; text-align: center; font-size: .85rem; color: var(--muted); }

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .side { flex-direction: row; flex-wrap: wrap; align-items: center; padding: .8rem 1rem; gap: .5rem 1rem; }
  .nav { flex-direction: row; flex-wrap: wrap; } .nav .label { display: none; }
  .side .me { margin: 0 0 0 auto; border: 0; padding: 0; }
  .main { padding: 1.25rem 1rem 2rem; }
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
}