:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --border: #e1e4e8;
  --text: #1f2328;
  --muted: #6a737d;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --success: #16a34a;
  --warn: #d97706;
  --radius: 8px;
}

* { 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);
}

#app { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  height: 56px;
}

.topbar .brand { font-weight: 700; font-size: 16px; }

.topbar nav { display: flex; gap: 4px; }

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

.topbar nav a.active, .topbar nav a:hover { background: #eef2ff; color: var(--primary); }

.topbar .user { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 10px; }

main { flex: 1; padding: 20px; max-width: 1200px; width: 100%; margin: 0 auto; }

.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.login-card { width: 340px; }
.login-card h1 { font-size: 18px; margin-top: 0; }

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; margin-top: 12px; }

input, select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
}

textarea { resize: vertical; }

button {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 14px;
  background: var(--primary);
  color: white;
  font-weight: 600;
}
button:hover { background: var(--primary-dark); }
button.secondary { background: #eef0f2; color: var(--text); }
button.secondary:hover { background: #e2e5e9; }
button.danger { background: var(--danger); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.error-banner {
  background: #fee2e2; color: #991b1b; padding: 10px 14px; border-radius: 6px; margin-bottom: 12px; font-size: 14px;
}
.info-banner {
  background: #dcfce7; color: #166534; padding: 10px 14px; border-radius: 6px; margin-bottom: 12px; font-size: 14px;
}

.filters {
  display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; background: var(--panel);
  padding: 12px; border-radius: var(--radius); border: 1px solid var(--border);
}
.filters > div { min-width: 140px; }
.filters label { margin-top: 0; }

table { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: var(--radius); overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 13px; vertical-align: top; }
th { background: #fafbfc; color: var(--muted); font-weight: 600; }
tr.ticket-row { cursor: pointer; }
tr.ticket-row:hover { background: #f8fafc; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge.unassigned { background: #f3f4f6; color: #4b5563; }
.badge.assigned { background: #dbeafe; color: #1e40af; }
.badge.replied { background: #dcfce7; color: #166534; }
.badge.closed { background: #f3e8ff; color: #6b21a8; }
.badge.automated { background: #fef3c7; color: #92400e; margin-left: 6px; }

.tag-chip { display: inline-block; background: #eef2ff; color: #3730a3; padding: 1px 8px; border-radius: 999px; font-size: 11px; margin-right: 4px; }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.35); display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 16px; overflow-y: auto; z-index: 50;
}
.modal { background: var(--panel); border-radius: var(--radius); width: 960px; max-width: 100%; padding: 24px; overflow-wrap: anywhere; }
.modal h2 { margin-top: 0; font-size: 18px; }
.modal .close-x { float: right; background: none; color: var(--muted); padding: 4px 8px; }
.modal .close-x:hover { background: #f3f4f6; }

/* min-width: 0 on the grid children is required so a long unbroken string
   (e.g. a tracking URL with no spaces) in .body-box can't force its grid
   column - and the whole modal layout - wider than the modal itself.
   Without it, CSS Grid's default min-width:auto lets overflowing content
   push the second column (Status/Assignee/Tags/etc.) out past the modal's
   right edge. */
.detail-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; margin-top: 12px; }
.detail-grid > div { min-width: 0; }
.body-box {
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  background: #fafbfc; border: 1px solid var(--border); border-radius: 6px; padding: 12px; font-size: 15px; line-height: 1.5; max-height: 460px; overflow-y: auto;
}
.thread { max-height: 520px; overflow-y: auto; display: flex; flex-direction: column; gap: 14px; padding-right: 4px; }
.thread-message {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  max-width: 96%;
}
.thread-message.inbound { background: #fafbfc; align-self: flex-start; }
.thread-message.outbound { background: #eef4ff; align-self: flex-end; border-color: #cbd9f5; }
.thread-message-meta { margin-bottom: 6px; color: var(--muted); font-size: 12px; }
.thread-message-body { white-space: pre-wrap; word-break: break-word; overflow-wrap: anywhere; font-size: 15px; line-height: 1.5; }

.side-field { margin-bottom: 14px; }
.side-field label { margin-top: 0; }

.reply-actions { display: flex; gap: 8px; margin-top: 8px; }

.reply-recipients { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 8px; margin-top: 6px; }
.reply-field { flex: 1; min-width: 140px; }
.reply-field label { margin: 0 0 2px 0; font-size: 12px; }
.reply-field input { font-size: 13px; padding: 6px 8px; }
#reply-all-btn { padding: 6px 10px; font-size: 13px; }

.rich-toolbar { display: flex; gap: 4px; margin-top: 10px; }
.rich-toolbar-btn {
  background: #eef0f2; color: var(--text); padding: 4px 10px; font-size: 13px; border-radius: 6px;
}
.rich-toolbar-btn:hover { background: #e2e5e9; }

.reply-editor {
  min-height: 110px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.5;
  overflow-y: auto;
}
.reply-editor:empty:before { content: attr(data-placeholder); color: var(--muted); }
.reply-editor ul { margin: 4px 0 4px 20px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.stat-card h3 { margin: 0 0 8px 0; font-size: 15px; }

.charts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 14px; margin-bottom: 16px; }
.chart-card h3 { margin: 0 0 10px 0; font-size: 15px; }
.chart-card { min-height: 260px; }
.stat-row { display: flex; justify-content: space-between; font-size: 13px; padding: 3px 0; color: var(--muted); }
.stat-row strong { color: var(--text); }

.mailbox-list, .roster-list { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.list-item { display: flex; justify-content: space-between; align-items: center; background: var(--panel); border: 1px solid var(--border); padding: 10px 14px; border-radius: 6px; }
.list-item .meta { font-size: 12px; color: var(--muted); }

.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }

.pill-status { text-transform: capitalize; }

.small { font-size: 12px; color: var(--muted); }