:root {
    --cm-bg: #f7f8fb;
    --cm-surface: #ffffff;
    --cm-border: #e8eaf0;
    --cm-text: #16181d;
    --cm-muted: #6b7280;
    --cm-primary: #5b5ff0;
    --cm-primary-dark: #4749d6;
    --cm-primary-soft: #eeeeff;
    --cm-success: #16a34a;
    --cm-success-soft: #e8f8ee;
    --cm-danger: #e11d48;
    --cm-danger-soft: #fdecef;
    --cm-warning: #d97706;
    --cm-warning-soft: #fdf3e3;
    --cm-radius: 16px;
    --cm-radius-sm: 10px;
    --cm-shadow: 0 1px 2px rgba(16,24,40,.04), 0 4px 14px rgba(16,24,40,.05);
    --cm-shadow-hover: 0 2px 6px rgba(16,24,40,.06), 0 10px 24px rgba(16,24,40,.08);
}

[data-theme="dark"] {
    --cm-bg: #0f1116;
    --cm-surface: #171a21;
    --cm-border: #262b35;
    --cm-text: #edeef2;
    --cm-muted: #8b91a3;
    --cm-primary: #8386ff;
    --cm-primary-dark: #6a6df5;
    --cm-primary-soft: #1e1f3a;
    --cm-success-soft: #103322;
    --cm-danger-soft: #33141d;
    --cm-warning-soft: #332510;
    --cm-shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.35);
    --cm-shadow-hover: 0 4px 10px rgba(0,0,0,.4), 0 12px 28px rgba(0,0,0,.45);
}

* { box-sizing: border-box; }

body {
    background: var(--cm-bg);
    color: var(--cm-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    font-size: 14.5px;
}

a { text-decoration: none; color: var(--cm-primary); }
a:hover { color: var(--cm-primary-dark); }

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

.cm-sidebar {
    width: 248px;
    flex-shrink: 0;
    background: var(--cm-surface);
    border-right: 1px solid var(--cm-border);
    padding: 22px 14px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.cm-sidebar .brand {
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: -0.02em;
    padding: 6px 10px 24px;
    color: var(--cm-text);
    display: flex;
    align-items: center;
    gap: 9px;
}

.cm-sidebar .brand .dot {
    width: 11px; height: 11px; border-radius: 4px;
    background: linear-gradient(135deg, var(--cm-primary), #a78bfa);
    display: inline-block;
}

.cm-nav-link {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 9px 12px;
    border-radius: var(--cm-radius-sm);
    color: var(--cm-muted);
    font-weight: 500;
    font-size: 0.89rem;
    margin-bottom: 2px;
    transition: background .12s ease, color .12s ease;
}

.cm-nav-link i { font-size: 1rem; width: 18px; text-align: center; }
.cm-nav-link:hover { background: var(--cm-bg); color: var(--cm-text); }
.cm-nav-link.active { background: var(--cm-primary-soft); color: var(--cm-primary-dark); font-weight: 600; }

.cm-main { flex: 1; min-width: 0; padding: 26px 32px 60px; }

.cm-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}
.cm-topbar h4 { font-weight: 700; letter-spacing: -0.02em; }

.cm-card {
    background: var(--cm-surface);
    border: 1px solid var(--cm-border);
    border-radius: var(--cm-radius);
    box-shadow: var(--cm-shadow);
    padding: 20px 22px;
    transition: box-shadow .15s ease;
}

.cm-stat-card { padding: 18px 20px; }
.cm-stat-card .label { color: var(--cm-muted); font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.cm-stat-card .value { font-size: 1.85rem; font-weight: 700; margin-top: 6px; letter-spacing: -0.02em; }
.cm-stat-card .sub { font-size: 0.78rem; color: var(--cm-muted); margin-top: 3px; }

.badge { font-weight: 600; font-size: 0.72rem; padding: 4px 9px; border-radius: 999px; }

.badge-status-sent, .badge-status-completed { background: var(--cm-success-soft); color: var(--cm-success); }
.badge-status-pending, .badge-status-queued { background: var(--cm-warning-soft); color: var(--cm-warning); }
.badge-status-failed, .badge-status-bounced { background: var(--cm-danger-soft); color: var(--cm-danger); }
.badge-status-sending { background: var(--cm-primary-soft); color: var(--cm-primary-dark); }
.badge-status-review { background: var(--cm-warning-soft); color: var(--cm-warning); }
.badge-status-draft, .badge-status-canceled, .badge-status-paused { background: var(--cm-bg); color: var(--cm-muted); border: 1px solid var(--cm-border); }

.cm-editor-toolbar {
    border: 1px solid var(--cm-border);
    border-bottom: none;
    border-radius: 12px 12px 0 0;
    background: var(--cm-bg);
}

#quillEditor { background: var(--cm-surface); min-height: 380px; border-radius: 0 0 12px 12px; }

.cm-preview-frame {
    border: 1px solid var(--cm-border);
    border-radius: 12px;
    background: #fff;
    width: 100%;
    height: 560px;
}
.cm-preview-frame.mobile { max-width: 375px; margin: 0 auto; display: block; }
.cm-preview-frame.tablet { max-width: 768px; margin: 0 auto; display: block; }

.table { font-size: 0.87rem; }
.table > :not(caption) > * > * { color: var(--cm-text); border-color: var(--cm-border); vertical-align: middle; }
.table thead th { color: var(--cm-muted); font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; border-bottom-width: 1px; }

.form-control, .form-select {
    background: var(--cm-surface); color: var(--cm-text); border-color: var(--cm-border);
    border-radius: var(--cm-radius-sm);
    font-size: 0.9rem;
}
.form-control:focus, .form-select:focus {
    background: var(--cm-surface); color: var(--cm-text);
    border-color: var(--cm-primary); box-shadow: 0 0 0 .2rem var(--cm-primary-soft);
}
.form-label { font-size: 0.82rem; font-weight: 600; color: var(--cm-text); }

.btn { border-radius: var(--cm-radius-sm); font-weight: 600; font-size: 0.87rem; }
.btn-primary { background: var(--cm-primary); border-color: var(--cm-primary); }
.btn-primary:hover { background: var(--cm-primary-dark); border-color: var(--cm-primary-dark); }
.btn-outline-primary { color: var(--cm-primary); border-color: var(--cm-primary); }
.btn-outline-primary:hover { background: var(--cm-primary); border-color: var(--cm-primary); }
.btn-outline-secondary { color: var(--cm-muted); border-color: var(--cm-border); }
.btn-sm { border-radius: 8px; }

.nav-tabs { border-bottom-color: var(--cm-border); }
.nav-tabs .nav-link { color: var(--cm-muted); border: none; font-weight: 600; font-size: 0.88rem; padding: 8px 4px; margin-right: 22px; border-bottom: 2px solid transparent; border-radius: 0; }
.nav-tabs .nav-link.active { color: var(--cm-primary-dark); background: none; border-bottom-color: var(--cm-primary); }

.modal-content { background: var(--cm-surface); color: var(--cm-text); border-radius: var(--cm-radius); border: 1px solid var(--cm-border); }

.cm-drop-zone {
    border: 2px dashed var(--cm-border);
    border-radius: 14px;
    padding: 32px;
    text-align: center;
    color: var(--cm-muted);
    cursor: pointer;
    transition: border-color .15s ease, background .15s ease;
}
.cm-drop-zone.dragover { border-color: var(--cm-primary); background: var(--cm-primary-soft); }

.alert { border-radius: var(--cm-radius-sm); border: none; font-size: 0.87rem; }
.alert-warning { background: var(--cm-warning-soft); color: var(--cm-warning); }
.alert-success { background: var(--cm-success-soft); color: var(--cm-success); }
.alert-danger { background: var(--cm-danger-soft); color: var(--cm-danger); }
.alert-info { background: var(--cm-primary-soft); color: var(--cm-primary-dark); }

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: var(--cm-border); border-radius: 6px; }
::-webkit-scrollbar-track { background: transparent; }

/* Searchable multi-select dropdown */
.cm-msdropdown { position: relative; }

.cm-msdropdown-toggle {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    width: 100%; padding: 9px 14px; border: 1px solid var(--cm-border);
    border-radius: var(--cm-radius-sm); background: var(--cm-surface);
    color: var(--cm-text); font-size: 0.88rem; font-weight: 500; cursor: pointer;
    transition: border-color .15s ease;
}
.cm-msdropdown-toggle:hover { border-color: var(--cm-primary); }
.cm-msdropdown.open .cm-msdropdown-toggle { border-color: var(--cm-primary); box-shadow: 0 0 0 .2rem var(--cm-primary-soft); }
.cm-msdropdown-toggle i { color: var(--cm-muted); font-size: 0.8rem; transition: transform .15s ease; }
.cm-msdropdown.open .cm-msdropdown-toggle i { transform: rotate(180deg); }
.cm-msdropdown-label { color: var(--cm-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.cm-msdropdown-panel {
    display: none;
    position: absolute; z-index: 50; top: calc(100% + 6px); left: 0; right: 0;
    background: var(--cm-surface); border: 1px solid var(--cm-border);
    border-radius: var(--cm-radius-sm); box-shadow: var(--cm-shadow-hover);
    flex-direction: column;
    max-height: 280px;
    overflow: hidden;
}
.cm-msdropdown.open .cm-msdropdown-panel { display: flex; }

.cm-msdropdown-search {
    width: 100%;
    border: none; border-bottom: 1px solid var(--cm-border);
    padding: 10px 14px; font-size: 0.86rem;
    background: var(--cm-bg); color: var(--cm-text);
    border-radius: var(--cm-radius-sm) var(--cm-radius-sm) 0 0;
}
.cm-msdropdown-search:focus { outline: none; background: var(--cm-surface); }
.cm-msdropdown-search::placeholder { color: var(--cm-muted); }

.cm-msdropdown-list { overflow-y: auto; padding: 6px; flex: 1; }

.cm-msdropdown-item {
    display: flex; align-items: center; gap: 9px; padding: 8px 10px;
    border-radius: 8px; cursor: pointer; font-size: 0.86rem;
    color: var(--cm-text); line-height: 1.35;
}
.cm-msdropdown-item:hover { background: var(--cm-bg); }
.cm-msdropdown-item input[type="checkbox"] {
    flex-shrink: 0; margin: 0; width: 16px; height: 16px; pointer-events: none;
}
.cm-msdropdown-item .text-muted { font-size: 0.8rem; }

.cm-msdropdown-empty { padding: 18px 14px; text-align: center; color: var(--cm-muted); font-size: 0.85rem; }

/* Selected-account chips shown below the dropdown */
.cm-chip-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.cm-chip {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--cm-primary-soft); color: var(--cm-primary-dark);
    border-radius: 999px; padding: 4px 10px 4px 12px; font-size: 0.8rem; font-weight: 500;
}
.cm-chip button {
    border: none; background: none; color: var(--cm-primary-dark); opacity: .6;
    font-size: 0.9rem; line-height: 1; padding: 0; cursor: pointer;
}
.cm-chip button:hover { opacity: 1; }

@media (max-width: 900px) {
    .cm-sidebar { position: fixed; z-index: 40; transform: translateX(-100%); transition: transform .2s; }
    .cm-sidebar.open { transform: translateX(0); }
    .cm-main { padding: 16px; }
}