:root {
  --bg: #0f1412;
  --bg2: #171e1b;
  --panel: #1c2622;
  --line: #2c3a34;
  --text: #e8f0eb;
  --muted: #8fa399;
  --accent: #3ecf8e;
  --accent2: #c8a24a;
  --danger: #e35d5d;
  --warn: #d4a017;
  --ok: #3ecf8e;
  --radius: 14px;
  --font: "Segoe UI", "IBM Plex Sans", system-ui, sans-serif;
  --mono: "Cascadia Code", "Consolas", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  background:
    radial-gradient(1000px 500px at 10% -10%, rgba(62,207,142,.12), transparent 50%),
    radial-gradient(800px 400px at 100% 0%, rgba(200,162,74,.10), transparent 45%),
    var(--bg);
  color: var(--text);
}

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

.layout { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar {
  background: linear-gradient(180deg, #141b18, #101613);
  border-right: 1px solid var(--line);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.brand strong { display: block; font-size: 1.1rem; letter-spacing: .02em; }
.brand span { color: var(--muted); font-size: .8rem; }
.sidebar nav { display: flex; flex-direction: column; gap: .35rem; flex: 1; }
.sidebar nav a {
  color: var(--muted);
  padding: .7rem .85rem;
  border-radius: 10px;
  text-decoration: none;
}
.sidebar nav a:hover, .sidebar nav a.active {
  background: rgba(62,207,142,.12);
  color: var(--text);
}
.sidebar-foot { border-top: 1px solid var(--line); padding-top: 1rem; }
.user-chip { font-size: .85rem; margin-bottom: .4rem; }
.logout { color: var(--danger); font-size: .85rem; }

.main { min-width: 0; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.4rem 1.6rem .4rem;
}
.topbar h1 { margin: 0; font-size: 1.45rem; }
.topbar p { margin: .25rem 0 0; color: var(--muted); font-size: .9rem; }
.dhru-url {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: .45rem .7rem;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: .75rem;
  color: var(--accent2);
}
.content { padding: 1rem 1.6rem 2rem; }

.cards { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1rem; margin-bottom: 1.25rem; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}
.card .label { color: var(--muted); font-size: .8rem; }
.card .value { font-size: 1.6rem; font-weight: 700; margin-top: .25rem; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  margin-bottom: 1rem;
}
.panel h2 { margin: 0 0 1rem; font-size: 1.05rem; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .7rem .55rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }

.form-grid { display: grid; gap: .85rem; max-width: 640px; }
.form-row { display: grid; gap: .35rem; }
.form-row label { font-size: .82rem; color: var(--muted); }
input, select, textarea {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: .65rem .75rem;
  font: inherit;
}
textarea { min-height: 90px; resize: vertical; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  border: 0;
  border-radius: 10px;
  padding: .65rem 1rem;
  font: inherit;
  cursor: pointer;
  background: var(--accent);
  color: #062015;
  font-weight: 600;
}
.btn:hover { filter: brightness(1.05); }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
}
.btn-danger { background: var(--danger); color: #fff; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; }

.badge {
  display: inline-block;
  padding: .2rem .5rem;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
}
.badge-ok { background: rgba(62,207,142,.15); color: var(--ok); }
.badge-warn { background: rgba(212,160,23,.15); color: var(--warn); }
.badge-err { background: rgba(227,93,93,.15); color: var(--danger); }
.badge-muted { background: rgba(143,163,153,.15); color: var(--muted); }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.login-card {
  width: min(400px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.6rem;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.login-card h1 { margin: 0 0 .25rem; font-size: 1.35rem; }
.login-card p { margin: 0 0 1.2rem; color: var(--muted); font-size: .9rem; }
.alert {
  padding: .7rem .85rem;
  border-radius: 10px;
  margin-bottom: .9rem;
  font-size: .88rem;
}
.alert-err { background: rgba(227,93,93,.12); color: #ffb4b4; border: 1px solid rgba(227,93,93,.25); }
.alert-ok { background: rgba(62,207,142,.12); color: #b8f5d4; border: 1px solid rgba(62,207,142,.25); }
.mono { font-family: var(--mono); font-size: .82rem; }
.muted { color: var(--muted); }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }

@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: sticky; top: 0; z-index: 5; }
  .sidebar nav { flex-direction: row; flex-wrap: wrap; }
  .cards { grid-template-columns: 1fr 1fr; }
  .topbar { flex-direction: column; }
}
@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
}