:root {
    --bg: #0f172a;
    --panel: #1e293b;
    --panel-2: #273449;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --accent: #3b82f6;
    --accent-2: #22d3ee;
    --success: #10b981;
    --warn: #f59e0b;
    --error: #ef4444;
    --border: #334155;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.layout { display: flex; min-height: 100vh; }
.sidebar {
    width: 220px;
    background: var(--panel);
    border-right: 1px solid var(--border);
    padding: 20px 0;
}
.sidebar h1 { font-size: 16px; margin: 0 20px 20px; color: var(--accent-2); }
.sidebar nav a {
    display: block;
    padding: 10px 20px;
    color: var(--text);
    border-left: 3px solid transparent;
}
.sidebar nav a:hover { background: var(--panel-2); text-decoration: none; }
.sidebar nav a.active { border-left-color: var(--accent); background: var(--panel-2); }
.sidebar .user { margin-top: auto; padding: 20px; font-size: 12px; color: var(--muted); }
.main { flex: 1; padding: 24px 32px; overflow-x: auto; }
.main h2 { margin-top: 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card {
    background: var(--panel);
    padding: 18px;
    border-radius: 8px;
    border: 1px solid var(--border);
}
.card .label { color: var(--muted); font-size: 12px; text-transform: uppercase; }
.card .value { font-size: 28px; font-weight: 600; margin-top: 6px; }
table { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: 8px; overflow: hidden; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { background: var(--panel-2); font-size: 12px; text-transform: uppercase; color: var(--muted); }
tr:last-child td { border-bottom: none; }
.btn {
    display: inline-block;
    padding: 8px 14px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
}
.btn:hover { background: #2563eb; text-decoration: none; color: white; }
.btn-danger { background: var(--error); }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.form { background: var(--panel); padding: 24px; border-radius: 8px; max-width: 700px; }
.form label { display: block; margin-top: 14px; color: var(--muted); font-size: 12px; text-transform: uppercase; }
.form input, .form select, .form textarea {
    width: 100%;
    padding: 8px 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 4px;
    margin-top: 4px;
    font-size: 14px;
    font-family: inherit;
}
.form textarea { font-family: monospace; min-height: 120px; }
.form .actions { margin-top: 20px; display: flex; gap: 10px; }
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    background: var(--panel-2);
}
.badge.ok { background: var(--success); }
.badge.warn { background: var(--warn); color: #000; }
.badge.err { background: var(--error); }
.toolbar { display: flex; justify-content: space-between; margin-bottom: 16px; align-items: center; }
.login-box {
    max-width: 360px;
    margin: 100px auto;
    background: var(--panel);
    padding: 32px;
    border-radius: 10px;
    border: 1px solid var(--border);
}
.login-box h1 { margin-top: 0; color: var(--accent-2); }
.muted { color: var(--muted); font-size: 12px; }
.error { color: var(--error); margin-bottom: 10px; }
.flash {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
    background: var(--panel);
}
.flash-success { border-color: var(--success); background: rgba(16, 185, 129, 0.15); }
.flash-error   { border-color: var(--error);   background: rgba(239, 68, 68, 0.15); }
.flash-info    { border-color: var(--accent);  background: rgba(59, 130, 246, 0.15); }

.filters {
    display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; align-items: center;
}
.filters input, .filters select {
    padding: 8px 10px;
    background: var(--panel);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 4px;
    font-size: 13px;
    font-family: inherit;
}
.filters input[type=text] { min-width: 260px; }
.pager { display: flex; gap: 12px; align-items: center; margin-top: 16px; }

.mail-header {
    background: var(--panel);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border);
}
.mail-subject { font-size: 18px; font-weight: 600; margin-bottom: 14px; }
.mail-meta { width: auto; background: transparent; }
.mail-meta th {
    background: transparent;
    text-transform: none;
    padding: 4px 12px 4px 0;
    color: var(--muted);
    font-weight: normal;
    text-align: right;
    width: 110px;
}
.mail-meta td { padding: 4px 0; border-bottom: none; }
.mail-text {
    background: var(--panel);
    padding: 16px;
    border-radius: 6px;
    border: 1px solid var(--border);
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: ui-monospace, monospace;
    max-height: 600px;
    overflow: auto;
}
.tabs { display: flex; gap: 2px; margin-bottom: 12px; border-bottom: 1px solid var(--border); }
.tab-btn {
    background: transparent;
    border: none;
    color: var(--muted);
    padding: 8px 16px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    font-size: 13px;
    font-family: inherit;
}
.tab-btn.active { color: var(--text); border-bottom-color: var(--accent); }