:root {
  --font: "Inter", "Segoe UI", Tahoma, sans-serif;
  --bg: #f3f6fb;
  --bg-2: #e7edf7;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-solid: #ffffff;
  --line: #d6dfeb;
  --text: #1b2735;
  --muted: #64748b;
  --primary: #0b7285;
  --primary-hover: #095e6d;
  --accent: #f59f00;
  --danger: #c92a2a;
  --shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
}

:root[data-theme="dark"] {
  --bg: #0b111a;
  --bg-2: #101a29;
  --surface: rgba(19, 29, 43, 0.86);
  --surface-solid: #1a2637;
  --line: #283648;
  --text: #e9eef8;
  --muted: #9aa8bf;
  --primary: #22b8cf;
  --primary-hover: #15a2ba;
  --accent: #ffd43b;
  --danger: #ff6b6b;
  --shadow: 0 18px 36px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--text);
  font-family: var(--font);
  background:
    radial-gradient(1200px 700px at -10% -20%, var(--bg-2) 0%, transparent 65%),
    radial-gradient(1000px 600px at 110% -10%, color-mix(in srgb, var(--primary) 20%, transparent) 0%, transparent 55%),
    var(--bg);
  min-height: 100vh;
}

.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.2px;
  padding-right: 8px;
}

.nav-link {
  text-decoration: none;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 14px;
  backdrop-filter: blur(8px);
}

.nav-link:hover { border-color: var(--primary); }

.topbar .spacer { flex: 1; }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  padding: 18px;
}

.panel-title {
  margin: 0 0 12px;
  font-size: 22px;
  letter-spacing: 0.2px;
}

.search-row {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--surface-solid);
  color: var(--text);
}

.btn {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 9px 13px;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover { background: var(--primary-hover); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.btn-ghost:hover { border-color: var(--primary); }

.btn-warning {
  background: color-mix(in srgb, var(--accent) 18%, var(--surface-solid));
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
}

.muted { color: var(--muted); }

.flash-error {
  border: 1px solid color-mix(in srgb, var(--danger) 55%, var(--line));
  background: color-mix(in srgb, var(--danger) 14%, var(--surface-solid));
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 12px;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
}

table {
  width: 100%;
  min-width: 950px;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--surface-solid);
}

th, td {
  border-bottom: 1px solid var(--line);
  padding: 10px 9px;
  text-align: left;
  vertical-align: top;
}

th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
  background: color-mix(in srgb, var(--primary) 8%, var(--surface-solid));
}

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 12px;
  font-weight: 700;
  background: color-mix(in srgb, var(--primary) 18%, var(--surface-solid));
  color: var(--primary);
}

.login-card {
  max-width: 430px;
  margin: 72px auto;
}

.login-subtitle {
  margin-top: -4px;
  margin-bottom: 16px;
}

.form-grid {
  display: grid;
  gap: 12px;
}

@media (max-width: 768px) {
  .container { padding: 14px; }
  .search-row { flex-direction: column; }
  .panel { padding: 14px; border-radius: 14px; }
  .panel-title { font-size: 20px; }
}