:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #1c2530;
  --text-muted: #647082;
  --border: #e4e8ee;
  --brand: #0f6fff;
  --brand-dark: #0b57cc;
  --amber: #b7791f;
  --amber-bg: #fff6e5;
  --green: #167a4c;
  --green-bg: #e6f7ee;
  --red: #c0392b;
  --red-bg: #fdeceb;
  --sidebar-bg: #101826;
  --sidebar-text: #b7c2d0;
  --sidebar-active: #1c2c44;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

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

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 230px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  padding: 20px 0;
}

.sidebar .brand {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  padding: 0 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 10px;
}

.sidebar .brand span { color: var(--brand); }

.sidebar nav { display: flex; flex-direction: column; gap: 2px; padding: 10px; }

.sidebar nav a {
  color: var(--sidebar-text);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  text-decoration: none;
}

.sidebar nav a:hover { background: rgba(255,255,255,0.05); text-decoration: none; }
.sidebar nav a.active { background: var(--sidebar-active); color: #fff; font-weight: 600; }

.sidebar .count-badge {
  float: right;
  background: var(--brand);
  color: #fff;
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 10px;
}

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar h1 { font-size: 18px; margin: 0; }

.topbar .user { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 14px; }

.content { padding: 24px 28px; flex: 1; }

.messages { list-style: none; margin: 0 0 18px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.messages li {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid rgba(22,122,76,0.2);
}
.messages li.error { background: var(--red-bg); color: var(--red); border-color: rgba(192,57,43,0.2); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; }
tr:last-child td { border-bottom: none; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-pending { background: var(--amber-bg); color: var(--amber); }
.badge-approved { background: var(--green-bg); color: var(--green); }
.badge-rejected { background: var(--red-bg); color: var(--red); }

.btn {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  background: var(--brand);
  color: #fff;
}
.btn:hover { background: var(--brand-dark); text-decoration: none; }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-danger { background: var(--red); }
.btn-danger:hover { background: #a23327; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

.actions-row { display: flex; gap: 8px; flex-wrap: wrap; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }

.tabs { display: flex; gap: 4px; margin-bottom: 18px; border-bottom: 1px solid var(--border); }
.tabs a { padding: 10px 16px; font-size: 14px; color: var(--text-muted); border-bottom: 2px solid transparent; }
.tabs a.active { color: var(--text); border-bottom-color: var(--brand); font-weight: 600; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.form-group input[type=text], .form-group input[type=password], .form-group input[type=number], .form-group select, .form-group textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
}
.form-group .help-text { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.form-group .errorlist { color: var(--red); font-size: 12px; padding-left: 0; list-style: none; margin: 4px 0 0; }

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sidebar-bg);
}
.login-box {
  background: var(--panel);
  padding: 36px;
  border-radius: 14px;
  width: 340px;
}
.login-box h1 { font-size: 20px; margin: 0 0 6px; }
.login-box p.sub { color: var(--text-muted); font-size: 13px; margin: 0 0 24px; }

.doc-link { font-size: 13px; }
.meta-label { color: var(--text-muted); font-size: 12px; }