@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg: #0a0a0f;
  --surface: #12121a;
  --sidebar-bg: #0e0e16;
  --sidebar-text: #a0a0b8;
  --sidebar-hover: #1a1a28;
  --sidebar-active: #22222e;
  --card-bg: #12121a;
  --border: #1e1e2e;
  --border-subtle: #16161f;
  --primary: #7c3aed;
  --primary-light: rgba(124,58,237,0.15);
  --accent-bright: #a78bfa;
  --danger: #ef4444;
  --success: #22c55e;
  --muted: #555568;
  --text: #e8e8ed;
  --text-dim: #8888a0;
  --msg-subject-human: #60a5fa;
  --badge-bg: #7c3aed;
  --badge-text: #fff;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--sans); background: var(--bg); color: var(--text); height: 100vh; display: flex; flex-direction: column; }

/* Impersonation banner */
.impersonate-banner { background: #92400e; color: #fbbf24; padding: 8px 24px; display: flex; align-items: center; justify-content: space-between; font-size: 13px; font-weight: 500; flex-shrink: 0; }
.impersonate-banner button { background: #fbbf24; color: #78350f; border: none; border-radius: 4px; padding: 4px 12px; font-size: 12px; cursor: pointer; font-weight: 600; }
.impersonate-banner button:hover { background: #fcd34d; }

/* Header */
.header { background: var(--sidebar-bg); color: var(--text); padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; flex-shrink: 0; border-bottom: 1px solid var(--border); }
.header h1 { font-family: var(--mono); font-size: 14px; font-weight: 500; letter-spacing: 0.5px; color: var(--text-dim); }
.header h1 .accent { color: var(--accent-bright); }
.header-right { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.header-right label { color: var(--text-dim); font-size: 11px; }
.header-right select { background: var(--sidebar-hover); color: var(--sidebar-text); border: 1px solid var(--border); border-radius: 4px; padding: 3px 8px; font-size: 11px; font-family: var(--mono); }
.poll-status { width: 6px; height: 6px; border-radius: 50%; background: var(--success); display: inline-block; box-shadow: 0 0 6px rgba(34,197,94,0.5); }
.poll-status.paused { background: var(--muted); box-shadow: none; }
.header-user { color: var(--text-dim); font-size: 12px; font-family: var(--mono); }
.header-logout-btn { background: none; border: 1px solid var(--border); border-radius: 6px; color: var(--text-dim); padding: 4px 12px; font-size: 11px; font-family: var(--mono); cursor: pointer; transition: all 0.2s; letter-spacing: 0.5px; }
.header-logout-btn:hover { border-color: var(--primary); color: var(--accent-bright); }

/* Layout */
.layout { display: flex; flex: 1; overflow: hidden; }

/* Sidebar */
.sidebar { width: 280px; min-width: 240px; max-width: min(380px, 40vw); background: var(--sidebar-bg); color: var(--sidebar-text); display: flex; flex-direction: column; flex-shrink: 0; border-right: 1px solid var(--border); }
.sidebar-section { padding: 12px 16px 6px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); font-family: var(--mono); }
.sidebar-toolbar { padding: 8px 12px 4px; display: flex; flex-direction: column; gap: 6px; }
.sidebar-toolbar label { font-size: 10px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); font-family: var(--mono); }
#sidebarModeSelect { width: 100%; background: var(--sidebar-hover); color: var(--sidebar-text); border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; font-size: 12px; cursor: pointer; font-family: var(--sans); }
#sidebarModeSelect:focus { outline: 1px solid var(--primary); outline-offset: 1px; }
.agent-list { flex: 1; overflow-y: auto; padding-bottom: 180px; }
.agent-item { padding: 10px 16px; cursor: pointer; display: flex; align-items: center; justify-content: space-between; border-left: 3px solid transparent; transition: all 0.15s; }
.agent-item:hover { background: var(--sidebar-hover); }
.agent-item.active { background: var(--sidebar-active); border-left-color: var(--primary); }
.agent-item .agent-info { overflow: hidden; }
.agent-item .agent-name { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text); display: flex; align-items: center; gap: 6px; }
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.status-dot.status-online { background: #22c55e; box-shadow: 0 0 4px #22c55e88; }
.status-dot.status-idle { background: #eab308; box-shadow: 0 0 4px #eab30888; }
.status-dot.status-offline { background: #6b7280; }
.agent-item .agent-role { font-size: 11px; color: var(--muted); font-family: var(--mono); }
.agent-item.thread-sidebar-item { align-items: flex-start; gap: 10px; }
.agent-item.thread-sidebar-item .agent-info { overflow: visible; flex: 1; min-width: 0; }
.agent-item.thread-sidebar-item .agent-name {
  white-space: normal;
  word-break: break-word;
  overflow: visible;
  text-overflow: unset;
  line-height: 1.35;
  font-size: 13px;
}
.agent-item.thread-sidebar-item .badge { flex-shrink: 0; margin-top: 2px; }
.badge { background: var(--badge-bg); color: var(--badge-text); font-size: 10px; font-weight: 600; padding: 2px 7px; border-radius: 10px; min-width: 18px; text-align: center; font-family: var(--mono); }
.badge.zero { background: var(--muted); opacity: 0.4; }

.trash-split-title {
  padding: 10px 16px 4px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  font-family: var(--mono);
}
.trash-split-title:first-child { border-top: none; padding-top: 6px; }

.nav-buttons { position: fixed; bottom: 0; left: 0; width: 280px; padding: 10px; display: flex; flex-direction: column; gap: 4px; border-top: 1px solid var(--border); background: var(--sidebar-bg); z-index: 10; transition: transform 0.25s ease; }
.nav-buttons.collapsed .nav-btn { display: none; }
.nav-buttons.collapsed { padding: 0; }
.nav-toggle { display: flex; align-items: center; justify-content: center; width: 100%; padding: 6px 0; background: none; border: none; color: var(--muted); cursor: pointer; transition: color 0.15s; }
.nav-toggle:hover { color: var(--accent-bright); }
.nav-toggle svg { transition: transform 0.25s; }
.nav-buttons.collapsed .nav-toggle svg { transform: rotate(180deg); }
.nav-btn { padding: 9px 16px; background: none; border: none; color: var(--text-dim); cursor: pointer; text-align: left; font-size: 13px; border-radius: 6px; transition: all 0.15s; font-family: var(--sans); display: flex; align-items: center; gap: 10px; }
.nav-btn:hover { background: var(--sidebar-hover); color: var(--text); }
.nav-btn.active { background: var(--primary); color: #fff; }
.nav-icon { width: 18px; height: 18px; min-width: 18px; min-height: 18px; max-width: 18px; max-height: 18px; flex-shrink: 0; }

/* Main */
.main { flex: 1; overflow-y: auto; padding: 24px; background: var(--bg); }

/* Cards */
.card { background: var(--card-bg); border-radius: 10px; border: 1px solid var(--border); padding: 24px; margin-bottom: 16px; }
.card h2 { font-size: 15px; margin-bottom: 14px; font-family: var(--mono); font-weight: 500; color: var(--text-dim); letter-spacing: 0.3px; }

/* Inbox */
.msg-list { list-style: none; }
.msg-item { padding: 14px 16px; border-bottom: 1px solid var(--border-subtle); cursor: default; transition: background 0.15s; }
.msg-item:hover { background: rgba(124,58,237,0.04); }
.msg-item-head { cursor: pointer; }
.msg-item:last-child { border-bottom: none; }
.msg-item.unread { border-left: 3px solid var(--primary); }
.msg-item.read { border-left: 3px solid transparent; opacity: 0.6; }
.msg-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.msg-from { font-weight: 500; font-size: 13px; color: var(--text); font-family: var(--mono); }
.msg-time { font-size: 11px; color: var(--muted); font-family: var(--mono); }
.msg-subject { font-size: 14px; margin-bottom: 2px; color: var(--text); }
.msg-subject.msg-subject-human { color: var(--msg-subject-human); font-weight: 600; }
.msg-detail-subject { font-size: 15px; font-weight: 500; margin-bottom: 10px; line-height: 1.4; color: var(--text); }
.msg-detail-subject.msg-subject-human { color: var(--msg-subject-human); font-weight: 600; }
.thread-subject-line { font-weight: 500; margin: 4px 0 6px; font-size: 14px; line-height: 1.4; }
.thread-subject-line.msg-subject-human { color: var(--msg-subject-human); font-weight: 600; }
.msg-preview { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.msg-action-tag { font-size: 10px; padding: 2px 6px; border-radius: 4px; font-weight: 600; text-transform: uppercase; font-family: var(--mono); letter-spacing: 0.3px; }
.msg-action-tag.send { background: rgba(59,130,246,0.15); color: #60a5fa; }
.msg-action-tag.reply { background: rgba(34,197,94,0.15); color: #4ade80; }
.msg-action-tag.forward { background: rgba(251,191,36,0.15); color: #fbbf24; }

/* Message detail */
.msg-detail { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin-top: 10px; cursor: auto; user-select: text; }
.msg-detail .msg-body { margin: 12px 0; }
.msg-detail .meta { font-size: 12px; color: var(--muted); margin-bottom: 4px; font-family: var(--mono); }
.thread-link { font-size: 12px; color: var(--accent-bright); cursor: pointer; text-decoration: none; font-family: var(--mono); transition: color 0.15s; }
.thread-link:hover { color: var(--primary); text-decoration: underline; }

/* Markdown body */
.markdown-body { font-size: 14px; line-height: 1.65; color: var(--text); word-wrap: break-word; cursor: auto; user-select: text; }
.markdown-body > :first-child { margin-top: 0; }
.markdown-body > :last-child { margin-bottom: 0; }
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 { margin: 0.75em 0 0.35em; font-weight: 600; line-height: 1.3; color: var(--text); }
.markdown-body h1 { font-size: 1.35em; }
.markdown-body h2 { font-size: 1.2em; }
.markdown-body h3 { font-size: 1.05em; }
.markdown-body p { margin: 0.5em 0; }
.markdown-body ul, .markdown-body ol { margin: 0.5em 0; padding-left: 1.5em; }
.markdown-body li { margin: 0.2em 0; }
.markdown-body blockquote { margin: 0.5em 0; padding: 0.35em 0 0.35em 1em; border-left: 3px solid var(--primary); color: var(--text-dim); background: rgba(124,58,237,0.06); border-radius: 0 4px 4px 0; }
.markdown-body pre { margin: 0.75em 0; padding: 14px 16px; background: var(--bg); border: 1px solid var(--border); color: var(--text-dim); border-radius: 8px; overflow-x: auto; font-size: 13px; line-height: 1.5; }
.markdown-body code { font-family: var(--mono); font-size: 0.9em; }
.markdown-body :not(pre) > code { background: rgba(124,58,237,0.12); color: var(--accent-bright); padding: 0.15em 0.4em; border-radius: 4px; }
.markdown-body pre code { background: none; padding: 0; color: inherit; font-size: inherit; }
.markdown-body table { border-collapse: collapse; width: 100%; margin: 0.75em 0; font-size: 13px; }
.markdown-body th, .markdown-body td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; vertical-align: top; }
.markdown-body th { background: var(--surface); font-weight: 600; color: var(--text-dim); }
.markdown-body a { color: var(--accent-bright); }
.markdown-body a:hover { text-decoration: underline; }
.markdown-body img { max-width: min(100%, 600px); height: auto; border-radius: 6px; border: 1px solid var(--border); }
.markdown-body hr { border: none; border-top: 1px solid var(--border); margin: 1em 0; }
.markdown-body .codehilite, .markdown-body .highlight { margin: 0.75em 0; }
.markdown-body .codehilite pre, .markdown-body .highlight pre { margin: 0; }

/* Thread view */
.thread-msg { border-left: 3px solid var(--border); padding: 14px 18px; margin-bottom: 8px; transition: border-color 0.15s; }
.thread-msg:hover { border-left-color: var(--primary); }
.thread-msg .thread-meta { font-size: 12px; color: var(--muted); margin-bottom: 4px; font-family: var(--mono); }
.thread-msg .thread-body { margin-top: 6px; }

.compose-original-md { background: var(--bg); border-left: 3px solid var(--primary); padding: 12px 16px; border-radius: 4px; max-height: 320px; overflow-y: auto; font-size: 13px; }

/* Compose */
.compose-form { display: flex; flex-direction: column; gap: 14px; }
.compose-form label { font-size: 12px; font-weight: 500; color: var(--text-dim); font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.5px; }
.compose-form select,
.compose-form input:not([type="radio"]):not([type="checkbox"]),
.compose-form textarea { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; font-family: var(--sans); background: var(--bg); color: var(--text); transition: border-color 0.2s; }
.compose-form select:focus,
.compose-form input:not([type="radio"]):not([type="checkbox"]):focus,
.compose-form textarea:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px rgba(124,58,237,0.15); }
.compose-form input[type="radio"],
.compose-form input[type="checkbox"] { width: auto; flex-shrink: 0; margin: 0; accent-color: var(--primary); }
.compose-form label.compose-radio-row { display: flex; align-items: flex-start; gap: 10px; font-weight: normal; cursor: pointer; margin-bottom: 8px; text-transform: none; letter-spacing: 0; font-family: var(--sans); }
.compose-form label.compose-radio-row:last-of-type { margin-bottom: 0; }
.compose-form .compose-forward-hint { font-size: 12px; color: var(--muted); margin: 0 0 10px; line-height: 1.4; }
.compose-form .compose-forward-scope > label:first-of-type { display: block; }
/* Compose To autocomplete */
.compose-to-wrap { position: relative; }
.compose-to-dropdown { position: absolute; top: 100%; left: 0; right: 0; max-height: 240px; overflow-y: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,0.4); z-index: 50; margin-top: 4px; display: none; }
.compose-to-dropdown.visible { display: block; }
.compose-to-item { padding: 10px 14px; font-size: 13px; cursor: pointer; transition: background 0.1s; color: var(--text); }
.compose-to-item:hover, .compose-to-item.active { background: var(--primary-light); color: var(--accent-bright); }
.compose-to-empty { padding: 10px 14px; font-size: 12px; color: var(--danger); font-family: var(--mono); }
.compose-form textarea { min-height: 200px; resize: vertical; }
.compose-form > div { position: relative; }

/* Compose upload zone */
.compose-upload-zone { border: 2px dashed var(--border); border-radius: 8px; padding: 20px; text-align: center; transition: all 0.2s; cursor: default; }
.compose-upload-zone:hover, .compose-upload-zone.dragover { border-color: var(--primary); background: rgba(124,58,237,0.04); }
.upload-hint { font-size: 13px; color: var(--muted); }
.upload-browse { color: var(--accent-bright); cursor: pointer; text-decoration: underline; }
.upload-browse:hover { color: var(--primary); }

/* Compose attachments */
.compose-attachments { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.compose-attachment-item { display: flex; align-items: center; gap: 8px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; }
.compose-attachment-thumb { width: 36px; height: 36px; object-fit: cover; border-radius: 4px; }
.compose-attachment-info { display: flex; flex-direction: column; }
.compose-attachment-name { font-size: 12px; color: var(--text); font-family: var(--mono); }
.compose-attachment-size { font-size: 10px; color: var(--muted); }
.compose-attachment-remove { background: none; border: none; color: var(--muted); font-size: 16px; cursor: pointer; padding: 0 4px; transition: color 0.15s; }
.compose-attachment-remove:hover { color: var(--danger); }

/* Compose @ dropdown */
.compose-at-dropdown { position: absolute; left: 0; right: 0; max-height: 200px; overflow-y: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,0.4); z-index: 50; margin-top: 4px; display: none; }
.compose-at-dropdown.visible { display: block; }
.compose-at-item { display: flex; align-items: center; gap: 10px; padding: 8px 12px; cursor: pointer; font-size: 13px; color: var(--text); transition: background 0.1s; }
.compose-at-item:hover { background: var(--primary-light); color: var(--accent-bright); }
.compose-at-thumb { width: 28px; height: 28px; object-fit: cover; border-radius: 4px; }
.btn { padding: 8px 20px; border: none; border-radius: 8px; font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.2s; font-family: var(--mono); letter-spacing: 0.3px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #6d28d9; box-shadow: 0 0 20px rgba(124,58,237,0.3); }
.btn-primary:disabled { background: var(--muted); cursor: not-allowed; box-shadow: none; }
.btn-secondary { background: var(--sidebar-hover); color: var(--text-dim); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--primary); color: var(--accent-bright); }
.thread-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }
.compose-status { font-size: 13px; padding: 8px 12px; border-radius: 6px; font-family: var(--mono); }
.compose-status.success { background: rgba(34,197,94,0.12); color: #4ade80; border: 1px solid rgba(34,197,94,0.2); }
.compose-status.error { background: rgba(239,68,68,0.12); color: #f87171; border: 1px solid rgba(239,68,68,0.2); }

/* Stats */
.stats-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.stats-table th { text-align: left; padding: 10px 12px; background: var(--surface); border-bottom: 1px solid var(--border); font-weight: 500; color: var(--text-dim); font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }
.stats-table td { padding: 10px 12px; border-bottom: 1px solid var(--border-subtle); color: var(--text-dim); }
.stats-table tbody tr:nth-child(even) td { background: rgba(255,255,255,0.02); }
.stats-table tr:hover td { background: rgba(124,58,237,0.04); }
.stat-num { font-variant-numeric: tabular-nums; text-align: right; font-family: var(--mono); }

/* Back button */
.back-btn { background: none; border: none; color: var(--accent-bright); cursor: pointer; font-size: 12px; margin-bottom: 12px; padding: 0; font-family: var(--mono); }
.back-btn:hover { text-decoration: underline; }

/* Empty state */
.empty { text-align: center; padding: 48px; color: var(--muted); font-size: 13px; }

/* Tag editor */
.tag-editor { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; padding: 8px 0; margin-bottom: 8px; }
.tag-pill { display: inline-flex; align-items: center; gap: 4px; background: var(--primary-light); color: var(--accent-bright); font-size: 12px; font-weight: 500; padding: 3px 8px 3px 10px; border-radius: 12px; white-space: nowrap; font-family: var(--mono); }
.tag-pill .tag-remove { background: none; border: none; color: var(--accent-bright); cursor: pointer; font-size: 14px; line-height: 1; padding: 0 2px; border-radius: 50%; opacity: 0.5; transition: opacity 0.15s; }
.tag-pill .tag-remove:hover { opacity: 1; }
.tag-input { border: 1px dashed var(--border); border-radius: 12px; padding: 3px 10px; font-size: 12px; font-family: var(--mono); outline: none; min-width: 80px; width: 100px; background: transparent; color: var(--text); }
.tag-input:focus { border-color: var(--primary); border-style: solid; }
.tag-input::placeholder { color: var(--muted); }
.tag-input-wrap { position: relative; display: inline-flex; }
.tag-autocomplete { position: absolute; top: 100%; left: 0; min-width: 180px; max-height: 180px; overflow-y: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,0.4); z-index: 50; margin-top: 4px; display: none; }
.tag-autocomplete.visible { display: block; }
.tag-ac-item { padding: 6px 12px; font-size: 12px; cursor: pointer; transition: background 0.1s; color: var(--text-dim); }
.tag-ac-item:hover, .tag-ac-item.active { background: var(--primary-light); color: var(--accent-bright); }
.tag-ac-item strong { font-weight: 700; }
.sidebar-tags { display: flex; flex-wrap: wrap; gap: 3px; margin-top: 3px; }
.sidebar-tag { font-size: 10px; background: rgba(124,58,237,0.12); color: var(--accent-bright); padding: 1px 6px; border-radius: 8px; white-space: nowrap; font-family: var(--mono); }
.sidebar-filter-row { display: flex; align-items: center; gap: 6px; padding: 0 12px; }
.sidebar-filter-btn { background: none; border: 1px solid var(--border); color: var(--text-dim); border-radius: 6px; padding: 4px 10px; font-size: 11px; cursor: pointer; white-space: nowrap; transition: all 0.2s; display: flex; align-items: center; gap: 4px; font-family: var(--mono); }
.sidebar-filter-btn:hover { border-color: var(--primary); color: var(--accent-bright); }
.sidebar-filter-btn.active { border-color: var(--primary); color: var(--accent-bright); background: rgba(124,58,237,0.08); }
.sidebar-filter-btn .filter-icon { font-size: 13px; }
.filter-modal-box { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 24px; max-width: 420px; width: 90vw; box-shadow: 0 16px 48px rgba(0,0,0,0.5); animation: modalIn 0.18s ease; }
.filter-modal-title { font-size: 15px; font-weight: 500; margin-bottom: 16px; color: var(--text); font-family: var(--mono); }
.filter-modal-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; min-height: 40px; }
.filter-modal-tag { font-size: 13px; padding: 8px 18px; border-radius: 20px; cursor: pointer; border: 1px solid var(--border); background: transparent; color: var(--text-dim); transition: all 0.15s; white-space: nowrap; font-family: var(--mono); }
.filter-modal-tag:hover { border-color: var(--primary); color: var(--accent-bright); }
.filter-modal-tag.selected { background: var(--primary); border-color: var(--primary); color: #fff; }
.filter-modal-empty { font-size: 14px; color: var(--muted); padding: 12px 0; }
.filter-modal-actions { display: flex; justify-content: flex-end; gap: 10px; }

/* Agent delete button */
.agent-delete-btn { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 18px; padding: 4px 8px; border-radius: 4px; opacity: 0; transition: all 0.15s; line-height: 1; }
.agent-item:hover .agent-delete-btn { opacity: 1; }
.agent-delete-btn:hover { color: var(--danger); background: rgba(239,68,68,0.1); }

/* Confirm modal */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 1000; align-items: center; justify-content: center; backdrop-filter: blur(4px); }
.modal-overlay.visible { display: flex; }
.modal-box { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 28px 24px 20px; max-width: 380px; width: 90vw; box-shadow: 0 16px 48px rgba(0,0,0,0.5); animation: modalIn 0.18s ease; }
@keyframes modalIn { from { opacity: 0; transform: scale(0.92) translateY(8px); } to { opacity: 1; transform: none; } }
.modal-title { font-size: 15px; font-weight: 600; margin-bottom: 8px; color: var(--text); font-family: var(--mono); }
.modal-body { font-size: 14px; color: var(--text-dim); line-height: 1.5; margin-bottom: 20px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; }
.modal-cancel { padding: 8px 18px; border: 1px solid var(--border); border-radius: 8px; background: transparent; color: var(--text-dim); cursor: pointer; font-size: 13px; font-weight: 500; font-family: var(--mono); transition: all 0.2s; }
.modal-cancel:hover { border-color: var(--primary); color: var(--accent-bright); }
.modal-confirm { padding: 8px 18px; border: none; border-radius: 8px; background: var(--danger); color: #fff; cursor: pointer; font-size: 13px; font-weight: 500; font-family: var(--mono); }
.modal-confirm:hover { background: #dc2626; }

/* Hamburger button (hidden on desktop) */
.hamburger { display: none; background: none; border: none; color: var(--text); font-size: 24px; cursor: pointer; padding: 4px 8px; line-height: 1; }

/* Sidebar overlay backdrop (mobile only) */
.sidebar-backdrop { display: none; }

/* Login page */
.login-page { display: none; position: fixed; inset: 0; background: var(--bg); z-index: 2000; align-items: center; justify-content: center; flex-direction: column; }
.login-page.visible { display: flex; }
.login-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.3;
  pointer-events: none;
}
.login-page::after {
  content: '';
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,0.2) 0%, transparent 70%);
  pointer-events: none;
}
.login-home-link { position: relative; z-index: 1; display: inline-block; margin-bottom: 20px; font-family: var(--mono); font-size: 12px; color: var(--text-dim); text-decoration: none; transition: color 0.2s; letter-spacing: 0.5px; }
.login-home-link:hover { color: var(--accent-bright); }
.login-box { position: relative; z-index: 1; background: var(--surface); border-radius: 12px; border: 1px solid var(--border); padding: 40px 36px; width: 100%; max-width: 400px; box-shadow: 0 16px 48px rgba(0,0,0,0.4); }
.login-box h2 { font-size: 20px; font-weight: 600; margin-bottom: 4px; color: var(--text); font-family: var(--mono); letter-spacing: -0.5px; }
.login-box .login-subtitle { font-size: 12px; color: var(--muted); margin-bottom: 28px; font-family: var(--mono); }
.login-form { display: flex; flex-direction: column; gap: 14px; }
.login-form label { font-size: 11px; font-weight: 500; color: var(--text-dim); display: block; margin-bottom: 4px; font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.5px; }
.login-form input { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; font-family: var(--sans); outline: none; transition: all 0.2s; background: var(--bg); color: var(--text); }
.login-form input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.15); }
.login-form .login-btn { padding: 11px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.2s; font-family: var(--mono); letter-spacing: 0.5px; }
.login-form .login-btn:hover { background: #6d28d9; box-shadow: 0 0 20px rgba(124,58,237,0.3); }
.login-form .login-btn:disabled { background: var(--muted); cursor: not-allowed; box-shadow: none; }
.login-error { font-size: 12px; color: #f87171; background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.2); padding: 8px 12px; border-radius: 6px; font-family: var(--mono); }
.login-toggle { font-size: 12px; color: var(--muted); text-align: center; margin-top: 18px; }
.login-toggle a { color: var(--accent-bright); cursor: pointer; text-decoration: none; font-family: var(--mono); }
.login-toggle a:hover { text-decoration: underline; }

/* API Keys page */
.apikey-new-box { background: rgba(34,197,94,0.06); border: 1px solid rgba(34,197,94,0.2); border-radius: 10px; padding: 16px; margin-bottom: 20px; }
.apikey-new-box .apikey-value { font-family: var(--mono); font-size: 13px; background: var(--bg); border: 1px solid rgba(34,197,94,0.2); border-radius: 8px; padding: 10px 14px; word-break: break-all; margin: 10px 0 8px; color: #4ade80; }
.apikey-new-box .apikey-warning { font-size: 12px; color: #4ade80; font-weight: 500; margin-bottom: 8px; font-family: var(--mono); }
.apikey-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.apikey-table th { text-align: left; padding: 10px 12px; background: var(--surface); border-bottom: 1px solid var(--border); font-weight: 500; color: var(--text-dim); font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }
.apikey-table td { padding: 10px 12px; border-bottom: 1px solid var(--border-subtle); color: var(--text-dim); }
.apikey-table tr:hover td { background: rgba(124,58,237,0.04); }
.apikey-masked { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.apikey-status-active { color: var(--success); font-weight: 600; font-size: 11px; font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.5px; }
.apikey-status-inactive { color: var(--danger); font-weight: 600; font-size: 11px; font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.5px; }
.btn-danger-sm { background: rgba(239,68,68,0.15); color: #f87171; border: 1px solid rgba(239,68,68,0.2); border-radius: 6px; padding: 5px 12px; font-size: 11px; cursor: pointer; font-weight: 500; font-family: var(--mono); transition: all 0.2s; }
.btn-danger-sm:hover { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-sm { background: var(--sidebar-hover); color: var(--text-dim); border: 1px solid var(--border); border-radius: 6px; padding: 5px 12px; font-size: 11px; cursor: pointer; font-weight: 500; font-family: var(--mono); transition: all 0.2s; }
.btn-sm:hover { border-color: var(--primary); color: var(--accent-bright); }

/* Admin page */
.admin-section { margin-bottom: 32px; }
.admin-section h3 { font-size: 13px; font-weight: 500; margin-bottom: 14px; padding-bottom: 8px; border-bottom: 1px solid var(--border); font-family: var(--mono); color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.admin-table th { text-align: left; padding: 10px 12px; background: var(--surface); border-bottom: 1px solid var(--border); font-weight: 500; color: var(--text-dim); font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }
.admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--border-subtle); color: var(--text-dim); }
.admin-table tr:hover td { background: rgba(124,58,237,0.04); }
.invite-code-mono { font-family: var(--mono); font-size: 13px; letter-spacing: 1px; color: var(--accent-bright); }
.superadmin-badge { background: rgba(124,58,237,0.15); color: var(--accent-bright); font-size: 10px; font-weight: 600; padding: 2px 8px; border-radius: 4px; text-transform: uppercase; font-family: var(--mono); letter-spacing: 0.5px; }

/* ===== Mobile ===== */
@media (max-width: 768px) {
  .hamburger { display: block; }
  .layout { position: relative; }
  .sidebar {
    position: fixed;
    top: 0; left: 0;
    width: 85vw; max-width: 340px;
    height: 100vh; height: 100dvh;
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 199;
  }
  .sidebar-backdrop.visible { display: block; }
  .main { padding: 16px 12px; }
  .header { padding: 10px 14px; }
  .header h1 { font-size: 12px; }
  .nav-buttons {
    width: auto; right: 0;
    flex-direction: row;
    justify-content: space-around;
    padding: 0;
    z-index: 100;
    gap: 0;
  }
  .nav-btn { flex: 1; text-align: center; font-size: 0; padding: 8px 2px; border-radius: 0; flex-direction: column; gap: 0; justify-content: center; }
  .nav-icon { width: 18px; height: 18px; min-width: 18px; min-height: 18px; max-width: 18px; max-height: 18px; }
  .nav-toggle { display: none; }
  .main { padding-bottom: 48px; }
  .agent-list { padding-bottom: 0; }
  .agent-delete-btn { opacity: 0.6; font-size: 20px; padding: 6px 10px; }
  .msg-item { padding: 14px 12px; }
  .msg-header { flex-wrap: wrap; gap: 4px; }
  .msg-from { font-size: 14px; }
  .msg-time { font-size: 12px; }
  .msg-subject { font-size: 15px; }
  .msg-preview { font-size: 13px; }
  .thread-msg { padding: 12px; }
  .thread-actions { gap: 8px; }
  .thread-actions .btn { font-size: 12px; padding: 8px 14px; }
  .stats-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .stats-table { min-width: 600px; }
  .stats-table th, .stats-table td { padding: 8px 8px; font-size: 12px; white-space: nowrap; }
  .card { padding: 16px 12px; }
  .compose-form textarea { min-height: 150px; }
  .compose-form select,
  .compose-form input:not([type="radio"]):not([type="checkbox"]),
  .compose-form textarea { font-size: 16px; }
  .login-box { margin: 16px; padding: 28px 20px; }
  .compose-modal-box { width: 96%; height: 96vh; padding: 12px; }
  .compose-modal-box input, .compose-modal-box textarea, .compose-modal-box select { font-size: 16px !important; }
  .card { padding: 12px 8px; }
  input, textarea, select { width: 100%; box-sizing: border-box; }
  .compose-form { gap: 10px; }
  .compose-form input, .compose-form textarea, .compose-form select { width: 100%; }
}

/* Teams */
.card-header-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.teams-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.team-card { background: var(--sidebar-hover); border: 1px solid var(--border); border-radius: 8px; padding: 16px; cursor: pointer; transition: border-color 0.2s, background 0.2s, box-shadow 0.2s; }
.team-card:hover { border-color: var(--primary); background: var(--sidebar-active); box-shadow: 0 4px 16px rgba(124,58,237,0.15); }
.team-card-icon { margin-bottom: 10px; }
.team-card-avatar-count, .team-card-avatar-empty { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; font-size: 14px; font-weight: 600; font-family: var(--mono); }
.team-card-avatar-count { background: var(--primary); color: #fff; }
.team-card-avatar-empty { background: var(--border); color: var(--muted); }
.team-card-name { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.team-card-desc { font-size: 12px; color: var(--text-dim); margin-bottom: 12px; min-height: 18px; }
.team-card-footer { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--muted); }
.team-agent-count { background: var(--primary-light); color: var(--accent-bright); padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 500; }
.team-empty-hint { font-size: 13px; color: var(--text-dim); margin: 8px 0 16px; }
.text-muted { color: var(--muted); }
.team-detail-desc { font-size: 13px; color: var(--text-dim); margin-top: 4px; }
.team-detail-actions { display: flex; gap: 8px; }
.team-section-header { margin-top: 24px; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border); font-size: 14px; font-weight: 600; color: var(--text-dim); font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.5px; }
.team-section-hint { font-size: 12px; color: var(--muted); margin-bottom: 12px; line-height: 1.5; }
.sidebar-team-tag { background: var(--primary-light); color: var(--accent-bright); font-size: 10px; padding: 1px 6px; border-radius: 8px; font-weight: 500; }

/* Sidebar By Teams mode */
.sidebar-team-group { border-bottom: 1px solid var(--border-subtle); }
.sidebar-team-header { display: flex; align-items: center; gap: 6px; padding: 10px 16px; cursor: pointer; background: var(--sidebar-bg); font-size: 12px; font-weight: 600; color: var(--text-dim); transition: background 0.15s; user-select: none; }
.sidebar-team-header:hover { background: var(--sidebar-hover); }
.sidebar-team-arrow { display: inline-block; width: 10px; font-size: 10px; transition: transform 0.15s; color: var(--muted); }
.sidebar-team-arrow::before { content: '\25BC'; }
.sidebar-team-group.collapsed .sidebar-team-arrow { transform: rotate(-90deg); }
.sidebar-team-group.collapsed .sidebar-team-agents { display: none; }
.sidebar-team-header-name { flex: 1; }
.sidebar-team-header-count { color: var(--muted); font-weight: 400; font-size: 11px; }
.sidebar-agent-indented { padding-left: 32px; }

/* Compose Modal */
.compose-modal-box { background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; width: 80%; max-width: none; height: 96vh; overflow-y: auto; position: relative; padding: 24px; }
.compose-modal-close { position: absolute; top: 12px; right: 12px; background: none; border: none; color: var(--text-dim); font-size: 24px; cursor: pointer; padding: 4px 8px; border-radius: 4px; z-index: 1; }
.compose-modal-close:hover { color: var(--text); background: var(--sidebar-hover); }

/* Image preview */
.image-preview-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.85); z-index: 2000; display: flex; align-items: center; justify-content: center; }
.image-preview-box { max-width: 90vw; max-height: 90vh; position: relative; }
.image-preview-header { display: flex; align-items: center; justify-content: space-between; padding: 8px 12px; color: var(--text-dim); font-size: 12px; }
.image-preview-img { max-width: 90vw; max-height: 80vh; border-radius: 8px; display: block; }

/* Pagination */
.pagination { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 16px 0 4px; border-top: 1px solid var(--border-subtle); margin-top: 12px; }
.pagination-info { font-size: 12px; color: var(--text-dim); font-family: var(--mono); }
.pagination-btn { font-size: 12px; padding: 6px 14px; }
.pagination-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* Team Memories */
.memory-item { border: 1px solid var(--border); border-radius: 8px; margin-bottom: 8px; overflow: hidden; }
.memory-item-header { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; cursor: pointer; transition: background 0.1s; }
.memory-item-header:hover { background: var(--sidebar-hover); }
.memory-item-title { font-weight: 600; font-size: 13px; }
.memory-item-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; }
.memory-edit-form { padding: 12px 14px; border-top: 1px solid var(--border); background: var(--bg); }
.memory-edit-form label { font-size: 12px; color: var(--text-dim); display: block; margin-bottom: 4px; }
.memory-edit-form input[type="text"] { width: 100%; margin-bottom: 8px; }
.memory-edit-form textarea { width: 100%; min-height: 120px; margin-bottom: 8px; resize: vertical; }
.memory-char-count { font-weight: normal; color: var(--muted); font-size: 11px; margin-left: 6px; }
.memory-url-row { margin-bottom: 8px; }
.memory-copy-btn { background: var(--sidebar-hover); border: 1px solid var(--border); border-radius: 4px; color: var(--text-dim); font-size: 11px; padding: 2px 8px; cursor: pointer; font-family: var(--mono); }
.memory-copy-btn:hover { background: var(--primary-light); color: var(--accent-bright); }
.compose-at-label { display: inline-block; font-size: 10px; padding: 1px 5px; border-radius: 3px; margin-right: 6px; font-weight: 600; }
.compose-at-label-img { background: #2563eb22; color: #60a5fa; }
.compose-at-label-mem { background: #7c3aed22; color: #a78bfa; }