* { box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #f4f5f7;
    margin: 0;
    color: #1a1a1a;
}
.topbar {
    background: #0a1a3c;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
}
.topbar h1 { font-size: 18px; margin: 0; }
.topbar nav a {
    color: #d4af37;
    text-decoration: none;
    margin-left: 20px;
    font-size: 14px;
}
.topbar nav a.active { text-decoration: underline; }
main { max-width: 900px; margin: 30px auto; padding: 0 20px; }

.login-page { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-box {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    width: 320px;
}
.login-box h1 { margin-top: 0; font-size: 20px; color: #0a1a3c; }
.login-box label { display: block; margin-top: 14px; font-size: 13px; color: #555; }
.login-box input {
    width: 100%; padding: 8px; margin-top: 4px;
    border: 1px solid #ccc; border-radius: 4px; font-size: 14px;
}
.login-box button {
    margin-top: 20px; width: 100%; padding: 10px;
    background: #0a1a3c; color: #fff; border: none; border-radius: 4px;
    cursor: pointer; font-size: 14px;
}

.search-bar { margin-bottom: 16px; }
.search-bar input { padding: 8px; width: 260px; border: 1px solid #ccc; border-radius: 4px; }
.search-bar button { padding: 8px 14px; margin-left: 6px; border: none; background: #0a1a3c; color: #fff; border-radius: 4px; cursor: pointer; }
.search-bar a { margin-left: 10px; font-size: 13px; color: #555; }

.message-list { width: 100%; border-collapse: collapse; background: #fff; border-radius: 6px; overflow: hidden; }
.message-list th { text-align: left; background: #eef0f3; padding: 10px 14px; font-size: 13px; color: #555; }
.message-list td { padding: 10px 14px; border-top: 1px solid #eee; font-size: 14px; }
.message-list tr.unread td { font-weight: 600; }
.message-list a { color: #0a1a3c; text-decoration: none; }
.message-list .empty { text-align: center; color: #888; padding: 30px; }

.btn-primary {
    display: inline-block; background: #0a1a3c; color: #d4af37 !important;
    padding: 8px 16px; border-radius: 4px; text-decoration: none; font-size: 14px;
    border: none; cursor: pointer;
}
.btn-danger-small {
    background: #b3261e; color: #fff; border: none; padding: 5px 10px;
    border-radius: 4px; cursor: pointer; font-size: 12px;
}

.message-view { background: #fff; padding: 24px; border-radius: 6px; }
.message-view .meta { color: #666; font-size: 13px; border-bottom: 1px solid #eee; padding-bottom: 14px; margin-bottom: 14px; }
.message-body { line-height: 1.6; margin-bottom: 20px; }

.compose-form { background: #fff; padding: 24px; border-radius: 6px; }
.compose-form label { display: block; margin-top: 14px; font-size: 13px; color: #555; }
.compose-form input, .compose-form textarea {
    width: 100%; padding: 10px; margin-top: 4px; border: 1px solid #ccc; border-radius: 4px; font-size: 14px;
}
.compose-form button { margin-top: 18px; }

.cc-bcc-toggle { margin-top: 10px; }
.cc-bcc-toggle a { font-size: 13px; color: #0a1a3c; }
.cc-bcc-fields { margin-top: 6px; }
.cc-bcc-fields small { color: #888; font-weight: normal; }

.row-inline { display: flex; gap: 24px; margin-top: 14px; align-items: flex-end; }
.row-inline select { padding: 8px; border: 1px solid #ccc; border-radius: 4px; margin-top: 4px; }
.checkbox-field { padding-bottom: 8px; }
.checkbox-field label { display: flex; align-items: center; gap: 6px; font-size: 13px; color: #444; margin-top: 0; }
.checkbox-field input { width: auto; }

#editor-toolbar { margin-top: 4px; border-radius: 4px 4px 0 0; }
#editor-container { height: 220px; background: #fff; border-radius: 0 0 4px 4px; }
.signature-note { font-size: 12px; color: #888; margin-top: 10px; }

.error { color: #b3261e; background: #fdecea; padding: 10px 14px; border-radius: 4px; }
.success { color: #1e6b3f; background: #eafaf0; padding: 10px 14px; border-radius: 4px; }