:root {
  --bg: #eef1f5; --panel: #fff; --panel2: #f5f7fa; --line: #d9dfe7; --line2: #f0f2f5; --muted: #6b7785; --text: #1f2733; --key: #44505e;
  --accent: #338fcc; --accent2: #1f6fa8; --red: #d63939; --orange: #e8890c; --purple: #7048e8; --warn: #b35c00; --ok: #2b8a3e;
  --top: #1f6fa8; --dots: #c9d1db; --frame: #b8c4d2; --frame-bg: rgba(255,255,255,.55); --on: #e7f1fa; --hit: #fab005;
  --badge: #e9ecef; --badge-t: #343a40; --shadow: rgba(0,0,0,.15);
  --mono: "JetBrains Mono", Consolas, "Courier New", monospace;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #12161c; --panel: #1c222b; --panel2: #232a35; --line: #333d4a; --line2: #29313c; --muted: #8d99a8; --text: #dde3ea; --key: #a9b4c2;
  --accent: #4dabf7; --accent2: #74c0fc; --red: #ff6b6b; --orange: #ffa94d; --purple: #9775fa; --warn: #ffc078; --ok: #69db7c;
  --top: #161b22; --dots: #2b333e; --frame: #3b4655; --frame-bg: rgba(28,34,43,.6); --on: #1c3a52; --hit: #fcc419;
  --badge: #2c3440; --badge-t: #ced4da; --shadow: rgba(0,0,0,.5);
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; font: 13px/1.45 Roboto, "Segoe UI", Arial, sans-serif; color: var(--text); background: var(--bg); }
button { font: inherit; cursor: pointer; border: 1px solid var(--line); background: var(--panel); border-radius: 4px; padding: 4px 9px; color: inherit; }
button:hover { border-color: var(--accent); color: var(--accent2); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { background: var(--accent2); color: #fff; }
button.ghost { border-color: transparent; background: transparent; }
button.on { background: var(--on); border-color: var(--accent); color: var(--accent2); }
input, select, textarea { font: inherit; color: inherit; border: 1px solid var(--line); border-radius: 4px; padding: 4px 7px; background: var(--panel); }
textarea { width: 100%; resize: vertical; min-height: 60px; }
.muted { color: var(--muted); }
.err { color: var(--red); }
.grow { flex: 1 1 auto; }
.mono { font-family: var(--mono); font-size: 12px; }

/* вход */
.login-page { display: grid; place-items: center; }
.login-box { width: 320px; background: var(--panel); padding: 24px; border-radius: 8px; box-shadow: 0 6px 30px rgba(0,0,0,.12); display: grid; gap: 10px; }
.login-box h1 { margin: 0; font-size: 20px; color: var(--accent2); }
.login-box label { display: grid; gap: 4px; }
.login-box form { display: grid; gap: 10px; }
.seg { display: flex; gap: 0; }
.seg button { flex: 1; border-radius: 0; }
.seg button:first-child { border-radius: 4px 0 0 4px; }
.seg button:last-child { border-radius: 0 4px 4px 0; }
.okmsg { color: var(--ok); }
.users-tbl { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.users-tbl td { padding: 5px 4px; border-bottom: 1px solid var(--line2); vertical-align: middle; }
.users-tbl .acts { text-align: right; white-space: nowrap; }
.pending-badge { background: #e8590c; color: #fff; border-radius: 9px; padding: 0 6px; margin-left: 4px; font-size: 11px; }

/* верхняя панель */
.top { position: fixed; top: 0; left: 0; right: 0; height: 48px; display: flex; align-items: center; gap: 8px; padding: 0 12px;
  background: var(--top); color: #fff; z-index: 10; box-shadow: 0 2px 8px var(--shadow); }
.top .brand { font-weight: 700; margin-right: 8px; }
.top input[type=search] { width: 320px; border-color: transparent; background: var(--panel); color: var(--text); }
.top input[type=search]::placeholder { color: var(--muted); }
.top .found { color: #fff; font-size: 12px; white-space: nowrap; min-width: 70px; }
.top .chk { display: flex; align-items: center; gap: 4px; white-space: nowrap; }
.top button { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.3); color: #fff; }
.top button:hover { background: rgba(255,255,255,.25); color: #fff; }
.top .muted { color: #cfe2f3; }
.live { color: #8ce99a; font-size: 14px; } .live.off { color: #ffa8a8; }

/* поле */
#viewport { position: fixed; top: 48px; left: 0; right: 0; bottom: 0; overflow: hidden; cursor: grab;
  background-image: radial-gradient(var(--dots) 1px, transparent 1px); background-size: 24px 24px; }
#viewport.panning { cursor: grabbing; }
#world { position: absolute; left: 0; top: 0; transform-origin: 0 0; }
#links { position: absolute; left: 0; top: 0; overflow: visible; pointer-events: none; }
.hint { position: absolute; left: 12px; bottom: 10px; color: var(--muted); font-size: 12px; pointer-events: none; }
.empty-board { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; color: var(--muted); pointer-events: none; }
.empty-board p { max-width: 460px; }

/* рамка расследования */
.frame { position: absolute; border: 2px solid var(--frame); border-radius: 10px; background: var(--frame-bg); }
.frame.dim { opacity: .35; }
.frame.sel { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(51,143,204,.2); }
.frame-head { display: flex; gap: 8px; align-items: center; padding: 6px 10px; background: var(--panel); border-bottom: 1px solid var(--line);
  border-radius: 8px 8px 0 0; cursor: move; user-select: none; }
.frame-head b { font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; flex: 1 1 auto; }
.frame-head .muted { white-space: nowrap; }
.badge { display: inline-block; padding: 0 7px; border-radius: 10px; font-size: 11.5px; line-height: 18px; background: var(--badge); color: var(--badge-t); white-space: nowrap; }
.badge.TP { background: #ffe3e3; color: #c92a2a; } .badge.FP { background: #d3f9d8; color: #2b8a3e; } .badge.Unclear { background: #fff3bf; color: #8a6d00; }
.badge.P1 { background: #c92a2a; color: #fff; } .badge.P2 { background: #e8590c; color: #fff; } .badge.P3 { background: #f2c200; } .badge.P4 { background: #adb5bd; color: #fff; }

/* карточка события */
.card { position: absolute; width: 250px; min-height: 76px; background: var(--panel); border: 1px solid var(--line); border-left: 5px solid #adb5bd;
  border-radius: 6px; padding: 5px 7px; box-shadow: 0 1px 3px rgba(0,0,0,.08); cursor: pointer; user-select: none; }
.card:hover { box-shadow: 0 3px 12px rgba(0,0,0,.15); }
.card.sel { outline: 3px solid var(--accent); }
.card.dim { opacity: .2; }
.card.hit { outline: 3px solid var(--hit); outline-offset: 1px; }
.card.hit.cur { outline-width: 5px; }
.card.overlap { box-shadow: 0 0 0 2px var(--purple), 0 2px 10px rgba(112,72,232,.35); }
.card .meta { display: flex; gap: 5px; align-items: center; font-size: 11px; color: var(--muted); }
.card .txt { font-size: 12px; margin-top: 2px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; word-break: break-word; }
.card .host { font-size: 11px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card .flag { color: var(--warn); font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ov { background: var(--purple); color: #fff; border-radius: 9px; padding: 0 6px; font-size: 11px; white-space: nowrap; }
.ov.same { background: #2f9e44; } .ov.different { background: var(--red); } .ov.unclear { background: #f08c00; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: #c3ccd6; }
.dot.r1 { background: #f2c200; } .dot.r2 { background: var(--orange); } .dot.r3 { background: var(--red); }

/* боковая панель */
#side { position: fixed; top: 48px; right: 0; bottom: 0; width: min(460px, 96vw); background: var(--panel); z-index: 9; box-shadow: -6px 0 24px var(--shadow);
  overflow: auto; padding: 14px 16px 30px; }
#side .close { position: absolute; right: 8px; top: 8px; }
#side h3 { margin: 0 28px 6px 0; font-size: 15px; }
#side h4 { margin: 16px 0 6px; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); }
#side .row { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
table.kv { width: 100%; border-collapse: collapse; table-layout: fixed; }
table.kv td { border-bottom: 1px solid var(--line2); padding: 3px 4px; vertical-align: top; word-break: break-word; font-family: var(--mono); font-size: 11.5px; }
table.kv td:first-child { width: 38%; color: var(--key); }
.review-btns button { flex: 1 1 0; }
.review { padding: 4px 0; border-bottom: 1px solid var(--line2); }
.comment { padding: 6px 8px; background: var(--panel2); border-radius: 6px; margin-bottom: 6px; white-space: pre-wrap; word-break: break-word; }
.comment .who { font-size: 11px; color: var(--muted); }
.ovlist li { margin-bottom: 4px; }
.ovlist a { color: var(--accent2); cursor: pointer; text-decoration: underline; }

pre.body { white-space: pre-wrap; word-break: break-all; background: var(--panel2); padding: 6px; border-radius: 4px; }
.danger { color: var(--red); border-color: var(--red); }
.danger:hover { background: var(--red); color: #fff; }

/* читалка курса */
.course-app { overflow: hidden; }
.top a.brand, .top a.btn { color: #fff; text-decoration: none; }
.top a.btn { padding: 4px 9px; border: 1px solid rgba(255,255,255,.3); border-radius: 4px; background: rgba(255,255,255,.12); }
.course-wrap { position: fixed; top: 48px; left: 0; right: 0; bottom: 0; display: flex; }
.course-tree { width: 360px; flex: none; overflow: auto; background: var(--panel); border-right: 1px solid var(--line); padding: 8px 0; }
.course-tree details { padding-left: 10px; }
.course-tree summary { cursor: pointer; padding: 4px 6px; font-weight: 600; }
.course-tree .page { display: block; padding: 4px 10px 4px 22px; color: var(--text); text-decoration: none; font-size: 13px; border-left: 3px solid transparent; }
.course-tree .page:hover { background: var(--panel2); }
.course-tree .page.on { background: var(--on); border-left-color: var(--accent); }
.course-tree .page.hit { padding-left: 12px; }
.course-tree .page .muted { font-size: 12px; }
.course-hits-title { margin: 12px 10px 4px; font-size: 12px; text-transform: uppercase; color: var(--muted); }
.course-view { flex: 1 1 auto; border: 0; background: #fff; }
:root[data-theme="dark"] .course-view { background: #1c222b; }