:root {
  --bg: #0b0f19;
  --surface: #131a2a;
  --surface-2: #1b2438;
  --surface-3: #232f48;
  --border: #29334d;
  --text: #e9edf8;
  --text-muted: #8b98b8;
  --primary: #5865f2;
  --primary-hover: #4752c4;
  --primary-soft: rgba(88, 101, 242, .14);
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 1px 2px rgba(0,0,0,.2), 0 8px 24px -12px rgba(0,0,0,.5);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(88,101,242,.10), transparent 60%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px; background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .01em; }
.brand-mark {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 9px;
  background: var(--primary); color: white; font-size: 13px; font-weight: 800;
  overflow: hidden; flex: 0 0 auto;
}
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.nav { display: flex; gap: 4px; }
.nav a {
  color: var(--text-muted); font-weight: 600; font-size: 14px; padding: 8px 12px;
  border-radius: var(--radius-sm); transition: background .15s, color .15s;
}
.nav a:hover, .nav a.active { color: var(--text); text-decoration: none; background: var(--surface-2); }
.user-box { display: flex; align-items: center; gap: 12px; color: var(--text-muted); font-size: 14px; }

.shell { max-width: 1140px; margin: 0 auto; padding: 32px 24px 64px; }
.auth-shell { max-width: 380px; margin: 10vh auto; padding: 0 20px; }

h1 { font-size: 23px; margin: 0 0 6px; letter-spacing: -.01em; }
h2 { font-size: 16px; margin: 0 0 14px; letter-spacing: -.005em; }
p.subtitle { color: var(--text-muted); margin: 0 0 24px; }

.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }

.card {
  background: linear-gradient(180deg, var(--surface), color-mix(in srgb, var(--surface) 92%, black));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; margin-bottom: 20px; box-shadow: var(--shadow-card);
}

.btn {
  display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border);
  background: var(--surface-2); color: var(--text); padding: 9px 16px; border-radius: 8px;
  font-size: 14px; font-weight: 600; cursor: pointer;
}
.btn:hover { background: #26304d; text-decoration: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: rgba(239,68,68,.12); }
.btn-ghost { background: transparent; }
.btn-small { padding: 5px 10px; font-size: 12.5px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.form-field.full { grid-column: 1 / -1; }
label { font-size: 13px; font-weight: 600; color: var(--text-muted); }
.input, select, textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 10px 12px; font-size: 14px; font-family: inherit;
}
.input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }
small.hint { color: var(--text-muted); font-size: 12px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-size: 12.5px; text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }
td.actions { display: flex; gap: 8px; justify-content: flex-end; }
.table-wrap { overflow-x: auto; }

.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 700; background: var(--surface-2); border: 1px solid var(--border);
}
.badge-success { color: var(--success); border-color: color-mix(in srgb, var(--success) 40%, transparent); }
.badge-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); }
.badge-muted { color: var(--text-muted); }
.badge-admin { color: var(--primary); border-color: color-mix(in srgb, var(--primary) 40%, transparent); }

.notice { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; border: 1px solid transparent; }
.notice-success { background: rgba(34,197,94,.1); color: var(--success); border-color: rgba(34,197,94,.3); }
.notice-error { background: rgba(239,68,68,.1); color: var(--danger); border-color: rgba(239,68,68,.3); }
.notice-info { background: rgba(88,101,242,.1); color: #9aa5ff; border-color: rgba(88,101,242,.3); }

.empty { color: var(--text-muted); padding: 30px 0; text-align: center; font-size: 14px; }

.server-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.server-card {
  background: linear-gradient(180deg, var(--surface), color-mix(in srgb, var(--surface) 92%, black));
  border: 1px solid var(--border); border-radius: var(--radius); padding: 18px;
  box-shadow: var(--shadow-card); transition: border-color .15s, transform .15s;
}
.server-card:hover { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); }
.server-card .server-name { font-weight: 700; font-size: 16px; margin-bottom: 4px; }
.server-card .server-owner { color: var(--text-muted); font-size: 13px; margin-bottom: 14px; }
.server-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }

.split-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.muted { color: var(--text-muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }

/* --- Tab-Navigation (server.php Detailansicht) ------------------------- */
.tab-nav {
  display: flex; gap: 4px; flex-wrap: wrap; border-bottom: 1px solid var(--border);
  margin-bottom: 22px; padding-bottom: 0;
}
.tab-nav button {
  appearance: none; background: transparent; border: none; color: var(--text-muted);
  font-size: 14px; font-weight: 600; font-family: inherit; padding: 11px 16px; cursor: pointer;
  border-bottom: 2px solid transparent; margin-bottom: -1px; display: inline-flex; align-items: center; gap: 7px;
  transition: color .15s, border-color .15s;
}
.tab-nav button:hover { color: var(--text); }
.tab-nav button.active { color: var(--text); border-bottom-color: var(--primary); }
.tab-nav button .badge { margin-left: 2px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: hp-fade-in .15s ease; }
@keyframes hp-fade-in { from { opacity: 0; transform: translateY(2px); } to { opacity: 1; transform: none; } }

/* --- Metric-Kacheln (Status/Konfiguration/Traffic) ---------------------- */
.metric-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.metric-tile {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 13px 14px;
}
.metric-tile .metric-label {
  color: var(--text-muted); font-size: 11.5px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .04em; display: block; margin-bottom: 6px;
}
.metric-tile .metric-value { font-size: 17px; font-weight: 700; }
.metric-tile .metric-value.mono { font-size: 14px; }
.section-heading {
  font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
  color: var(--text-muted); margin: 24px 0 12px;
}
.section-heading:first-child { margin-top: 0; }

/* --- Zugangsdaten (Server-Konfiguration) -------------------------------- */
.credential-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.credential-row {
  display: flex; align-items: center; gap: 8px; background: var(--surface-2);
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px;
}
.credential-row .credential-value {
  flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 14px;
}
.credential-row .credential-value.is-masked { letter-spacing: .12em; }
.credential-row button {
  appearance: none; background: var(--surface-3); border: 1px solid var(--border); color: var(--text-muted);
  cursor: pointer; padding: 5px 10px; border-radius: 6px; font-size: 12px; font-weight: 600;
  font-family: inherit; flex: 0 0 auto;
}
.credential-row button:hover { color: var(--text); border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); }

@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; gap: 10px; }
}