:root {
    --bg: #f4f5f7;
    --panel: #ffffff;
    --ink: #1f2733;
    --muted: #6b7280;
    --line: #e3e6ea;
    --brand: #1668b8;
    --brand-ink: #ffffff;
    --ok: #1a7f4b;
    --warn: #b45309;
    --warn-bg: #fff6e6;
    --danger: #b02a2a;
    --radius: 8px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.5;
}

a { color: var(--brand); }

.topbar {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 0.75rem 1.25rem;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
}
.topbar .brand { display: flex; align-items: center; gap: 0.5rem; text-decoration: none; color: var(--ink); }
.brand-logo { height: 26px; width: auto; display: block; }
.brand-suffix { font-weight: 600; color: var(--muted); font-size: 0.95rem; }
.login-logo { display: block; height: 40px; width: auto; margin: 0 auto 1.1rem; }
.topbar nav { display: flex; gap: 1rem; }
.topbar nav a { text-decoration: none; color: var(--ink); }
.topbar nav a.active { color: var(--brand); font-weight: 600; }
.topbar .spacer { flex: 1; }

.container { max-width: 960px; margin: 1.5rem auto; padding: 0 1.25rem; }
.container.narrow { max-width: 460px; }

.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1.25rem;
}

h1 { font-size: 1.4rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 0 0 0.75rem; }

.flash { padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; }
.flash.ok { background: #e7f6ee; color: var(--ok); }
.flash.err { background: #fdecec; color: var(--danger); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.6rem 0.5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); }

.badge {
    display: inline-block; padding: 0.1rem 0.5rem; border-radius: 999px;
    font-size: 0.75rem; background: #eef1f4; color: var(--muted);
}
.badge.special { background: var(--warn-bg); color: var(--warn); }

.meter { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }

.warnbox { background: var(--warn-bg); color: var(--warn); border: 1px solid #f1d9a8; border-radius: var(--radius); padding: 0.75rem 1rem; margin-bottom: 1rem; }

label { display: block; font-size: 0.85rem; color: var(--muted); margin: 0.6rem 0 0.2rem; }
input[type=text], input[type=email], input[type=password], input[type=url], textarea, select {
    width: 100%; padding: 0.55rem 0.65rem; border: 1px solid var(--line);
    border-radius: 6px; font: inherit; background: #fff; color: var(--ink);
}
textarea { resize: vertical; }
textarea.draft { min-height: 240px; }

.btn {
    display: inline-block; border: 1px solid var(--line); background: #fff; color: var(--ink);
    padding: 0.5rem 0.9rem; border-radius: 6px; font: inherit; cursor: pointer; text-decoration: none;
}
.btn.primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.btn.danger { color: var(--danger); border-color: #eecccc; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.row { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: center; }
.actions { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 0.9rem; }
form.inline { display: inline; }

.mail-body, .ref-body {
    white-space: pre-wrap; word-break: break-word;
    background: #fafbfc; border: 1px solid var(--line); border-radius: 6px;
    padding: 0.75rem; margin: 0; font: inherit;
}
.ref { border-left: 3px solid var(--brand); padding: 0.5rem 0.75rem; margin-bottom: 0.75rem; background: #fafbfc; }
.ref .ref-meta { font-size: 0.8rem; color: var(--muted); margin-bottom: 0.35rem; }

.field-error { color: var(--danger); font-size: 0.85rem; margin-top: 0.2rem; }

.mail-preview-label { font-size: 0.8rem; margin: 0.6rem 0 0.3rem; }
.mail-preview {
    border: 1px solid var(--line); border-radius: 6px; padding: 0.75rem 0.9rem;
    background: #fafbfc;
}
.mail-preview p { margin: 0 0 0.6rem; }
.mail-preview p:last-child { margin-bottom: 0; }
.mail-preview a { color: var(--brand); }
.mail-preview ul, .mail-preview ol { margin: 0 0 0.6rem; padding-left: 1.3rem; }
code { background: #eef1f4; padding: 0.05rem 0.3rem; border-radius: 4px; font-size: 0.9em; }

dialog.mail-dialog {
    width: min(640px, 92vw); padding: 0; border: 1px solid var(--line);
    border-radius: 8px; color: var(--ink); background: var(--panel);
}
dialog.mail-dialog::backdrop { background: rgba(0, 0, 0, 0.35); }
.mail-dialog .dlg-head { padding: 0.9rem 1.1rem; border-bottom: 1px solid var(--line); }
.mail-dialog .dlg-body { padding: 1.1rem; max-height: 62vh; overflow: auto; }

#busy-overlay {
    position: fixed; inset: 0; z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255, 255, 255, 0.6);
}
#busy-overlay[hidden] { display: none; }
.busy-box {
    display: flex; align-items: center; gap: 0.7rem;
    background: var(--panel); border: 1px solid var(--line); border-radius: 8px;
    padding: 1rem 1.4rem; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}
.spinner {
    display: inline-block;
    width: 18px; height: 18px; border: 3px solid var(--line);
    border-top-color: var(--brand); border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
.spinner-sm { width: 14px; height: 14px; border-width: 2px; }
@keyframes spin { to { transform: rotate(360deg); } }