:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #1c2430;
  --muted: #5a6677;
  --border: #dde1e7;
  --accent: #1f4fd8;
  --warn-bg: #fff4d6;
  --warn-text: #5c4300;
  --ok: #1a7f46;
  --busy: #b26a00;
  --idle: #6b7686;
  --on-accent: #ffffff;
  --err-bg: #fde8e8;
  --err-text: #7a1212;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161c;
    --surface: #1b212a;
    --text: #e8ecf1;
    --muted: #9aa6b6;
    --border: #2d3644;
    --accent: #7ea2ff;
    --warn-bg: #3a2f10;
    --warn-text: #ffe29a;
    --ok: #4cc882;
    --busy: #f0a43a;
    --idle: #8d98a8;
    --on-accent: #0b1020;
    --err-bg: #3d1818;
    --err-text: #ffb4b4;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.skip-link {
  position: absolute;
  left: 8px;
  top: -48px;
  background: var(--surface);
  padding: 8px 12px;
  border: 1px solid var(--border);
  z-index: 10;
}
.skip-link:focus { top: 8px; }

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

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 20px 12px;
}
.brand { padding: 0 8px 16px; display: flex; flex-direction: column; }
.brand-name { font-size: 1.25rem; font-weight: 700; }
.brand-sub { color: var(--muted); font-size: 0.875rem; }

.nav { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.nav-link {
  display: block;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--text);
  text-decoration: none;
}
.nav-link:hover { background: var(--bg); }
.nav-link[aria-current="page"] { background: var(--accent); color: #fff; font-weight: 600; }
@media (prefers-color-scheme: dark) {
  .nav-link[aria-current="page"] { color: #0b1020; }
}

.content { flex: 1; min-width: 0; }

.banner {
  background: var(--warn-bg);
  color: var(--warn-text);
  padding: 10px 24px;
  font-size: 0.9rem;
}

main { padding: 24px; outline: none; max-width: 1100px; }
h1 { margin: 0 0 20px; font-size: 1.6rem; }
h2 { margin: 0 0 12px; font-size: 1.05rem; }
section { margin-bottom: 24px; }

.tag {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--warn-bg);
  color: var(--warn-text);
  padding: 2px 6px;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 6px;
}

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
.card, .panel, .agent {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.card { padding: 16px; }
.card-label { color: var(--muted); font-size: 0.875rem; }
.card-value { font-size: 1.8rem; font-weight: 700; margin: 4px 0; }
.card-note { color: var(--muted); font-size: 0.8rem; }

.agents { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.agent { display: flex; align-items: center; gap: 12px; padding: 12px 16px; }
.agent-name { font-weight: 600; }
.status { margin-left: auto; font-size: 0.875rem; font-weight: 600; }
.dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.dot-ok { background: var(--ok); }
.dot-busy { background: var(--busy); }
.dot-idle { background: var(--idle); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 16px; align-items: start; }
.panel { padding: 16px; margin-bottom: 0; }

.list { list-style: none; margin: 0; padding: 0; }
.item { padding: 12px 0; border-top: 1px solid var(--border); }
.item:first-child { border-top: 0; padding-top: 0; }
.item-title { font-weight: 600; }
.item-meta, .muted, .hint { color: var(--muted); font-size: 0.875rem; }
.hint { margin: -4px 0 8px; }

.facts { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; margin: 8px 0 0; font-size: 0.9rem; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; }

.actions { display: flex; gap: 8px; margin-top: 8px; }
.btn {
  font: inherit;
  padding: 8px 14px;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); }

.notice { color: var(--muted); font-size: 0.875rem; min-height: 1.4em; margin: 8px 0 0; }

@media (max-width: 720px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; border-right: 0; border-bottom: 1px solid var(--border); padding: 12px; }
  .brand { flex-direction: row; align-items: baseline; gap: 8px; padding-bottom: 8px; }
  .nav { flex-direction: row; flex-wrap: wrap; gap: 4px; }
  .banner, main { padding-left: 16px; padding-right: 16px; }
}

.logout { margin: 16px 8px 0; }

.login { max-width: 380px; margin: 12vh auto 0; padding: 24px 16px; }
.login-form { display: flex; flex-direction: column; gap: 12px; }
.login-form[hidden] { display: none; }
.login-form label { font-weight: 600; }
.login-form input {
  font: inherit;
  padding: 10px 12px;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.chat { margin-bottom: 24px; }
.chat-log {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 120px;
  max-height: 360px;
  overflow-y: auto;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.chat-log p { margin: 0; }
.bubble {
  max-width: 85%;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow-wrap: anywhere;
}
.bubble .who { font-size: 0.75rem; font-weight: 600; margin-bottom: 2px; }
.bubble .reason { font-size: 0.75rem; color: var(--muted); margin-bottom: 4px; }
.bubble .text { white-space: pre-wrap; }
.bubble-owner { align-self: flex-end; background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.bubble-manager { align-self: flex-start; background: var(--surface); }
.bubble-loading .text { color: var(--muted); font-style: italic; }
.bubble-error { align-self: flex-start; background: var(--err-bg); color: var(--err-text); border-color: var(--err-text); }
.bubble-error a { color: inherit; margin-left: 4px; }
.chat-form { display: flex; gap: 8px; margin-top: 12px; align-items: flex-end; }
.chat-form textarea {
  flex: 1;
  font: inherit;
  padding: 10px 12px;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  resize: vertical;
}
.chat-form textarea::placeholder { color: var(--muted); opacity: 1; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

@media (max-width: 720px) {
  .chat-form { flex-direction: column; align-items: stretch; }
  .bubble { max-width: 95%; }
}

.subhead { margin: 16px 0 8px; font-size: 0.95rem; }
.field-label { display: block; margin: 8px 0 4px; font-size: 0.85rem; font-weight: 600; }
.approval-note,
.approval-form input,
.approval-form select {
  width: 100%;
  font: inherit;
  padding: 8px 10px;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}
.approval-note { min-height: 0; resize: vertical; }
.approval-details { margin: 6px 0; font-size: 0.9rem; }
.approval-details summary { cursor: pointer; color: var(--accent); }
.approval-details-text { white-space: pre-wrap; overflow-wrap: anywhere; margin-top: 4px; max-height: 200px; overflow-y: auto; }
.approval-owner-note { font-size: 0.9rem; margin-top: 4px; overflow-wrap: anywhere; }
.bubble-actions { margin-top: 8px; }
.bubble-note { margin: 6px 0 0; font-size: 0.8rem; color: var(--muted); }
.bubble-note:empty { display: none; }
.btn-small { min-height: 36px; padding: 4px 10px; font-size: 0.85rem; }
.approval-form { margin-top: 8px; max-width: 320px; }
.approval-form .actions { margin-top: 8px; }

.site-warning { margin: 8px 0; padding: 10px 12px; border-radius: 6px; background: var(--err-bg); color: var(--err-text); font-weight: 600; }
.chart svg { display: block; width: 100%; height: auto; max-height: 220px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; }
.chart-axis { stroke: var(--border); stroke-width: 1; }
.chart-line { fill: none; stroke: var(--accent); stroke-width: 2; }
.chart-dot { fill: var(--accent); }
.chart-dot.bad { fill: var(--err-text); stroke: var(--err-bg); stroke-width: 1; }
.chart-text { fill: var(--muted); font-size: 11px; }
#site-chart-note { white-space: pre-line; }

.privacy-note { margin: 4px 0 8px; padding: 10px 12px; border-radius: 6px; background: var(--warn-bg); color: var(--warn-text); font-weight: 600; }
.inquiry-fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea { width: 100%; font: inherit; padding: 8px 10px; min-height: 44px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); }
.inquiry-form textarea { resize: vertical; }
.inquiry-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.inquiry-text { white-space: pre-wrap; overflow-wrap: anywhere; margin: 6px 0; max-height: 260px; overflow-y: auto; }
.inquiry-draft { margin: 8px 0; padding: 10px 12px; border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: 6px; background: var(--bg); }
.inquiry-draft-title { margin: 0 0 4px; font-size: 0.9rem; overflow-wrap: anywhere; }
.inquiry .actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0; }
.tag-status { margin-left: 0; }
.report-text { white-space: pre-wrap; overflow-wrap: anywhere; margin: 8px 0; }
.report-controls textarea { width: 100%; font: inherit; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); resize: vertical; }
.checkbox-row { display: flex; align-items: center; gap: 8px; margin: 8px 0 0; }
.checkbox-row input { width: 20px; height: 20px; min-height: 0; }
.delete-form { margin: 8px 0; padding: 10px 12px; border: 1px solid var(--err-text); border-radius: 6px; }
.delete-form select { width: 100%; max-width: 320px; font: inherit; padding: 8px 10px; min-height: 44px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); }

.backup-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.backup-form input { font: inherit; padding: 8px 10px; min-height: 40px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface, #fff); color: inherit; max-width: 220px; }