:root {
  --bg: #0e0f12; --panel: #17181d; --line: #2a2c34; --text: #eceef2; --muted: #8b90a0; --accent: #d4b483;
}
* { box-sizing: border-box; margin: 0; }
html, body { height: 100%; background: var(--bg); color: var(--text); font: 15px/1.4 -apple-system, "SF Pro Text", Helvetica, Arial, sans-serif; overflow: hidden; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
[hidden] { display: none !important; }
.screen { position: fixed; inset: 0; display: flex; flex-direction: column; }

/* home */
#home { align-items: center; justify-content: center; gap: 28px; }
#home h1 { font-size: 15px; letter-spacing: .25em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.cards { display: flex; gap: 24px; flex-wrap: wrap; justify-content: center; padding: 0 24px; }
.card { width: 360px; height: 240px; border-radius: 18px; overflow: hidden; position: relative; background: var(--panel) center/cover; border: 1px solid var(--line); transition: transform .2s, border-color .2s; text-align: left; }
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 40%, rgba(0,0,0,.8)); }
.card span { position: absolute; left: 20px; bottom: 18px; z-index: 1; font-size: 22px; font-weight: 600; }
.card small { display: block; font-size: 13px; font-weight: 400; color: #ccc; margin-top: 2px; }

/* stage */
#bar { display: flex; align-items: center; gap: 16px; padding: 10px 16px; border-bottom: 1px solid var(--line); background: var(--panel); }
#bar button { padding: 6px 12px; border-radius: 8px; color: var(--muted); }
#bar button:hover { color: var(--text); background: #22242b; }
#pname { flex: 1; text-align: center; font-weight: 600; letter-spacing: .04em; }
#views { flex: 1; position: relative; min-height: 0; }
.view { position: absolute; inset: 0; display: flex; flex-direction: column; min-height: 0; }

#tabs { display: flex; justify-content: center; gap: 6px; padding: 10px 16px 14px; background: var(--panel); border-top: 1px solid var(--line); }
#tabs button { padding: 12px 22px; border-radius: 12px; color: var(--muted); font-weight: 500; font-size: 16px; display: flex; align-items: center; gap: 8px; transition: .15s; }
#tabs button kbd { font: 11px ui-monospace, monospace; padding: 1px 6px; border-radius: 5px; border: 1px solid var(--line); color: var(--muted); }
#tabs button:hover { color: var(--text); background: #22242b; }
#tabs button.on { background: var(--accent); color: #1a1409; }
#tabs button.on kbd { border-color: #1a140955; color: #1a1409; }

/* pdf */
.sub { display: flex; gap: 8px; justify-content: center; padding: 10px; }
.sub button { padding: 6px 16px; border-radius: 20px; border: 1px solid var(--line); color: var(--muted); }
.sub button.on { border-color: var(--accent); color: var(--accent); }
.pdfwrap { flex: 1; position: relative; min-height: 0; display: flex; align-items: center; justify-content: center; overflow: auto; }
.pdfwrap canvas { max-width: 100%; max-height: 100%; margin: auto; flex: none; box-shadow: 0 10px 40px rgba(0,0,0,.5); }
.nav { position: absolute; top: 0; bottom: 0; width: 18%; opacity: 0; font-size: 48px; color: #fff; transition: opacity .2s; display: flex; align-items: center; }
.nav:hover { opacity: .7; background: linear-gradient(90deg, rgba(0,0,0,.35), transparent); }
.nav.l { left: 0; padding-left: 18px; } .nav.r { right: 0; justify-content: flex-end; padding-right: 18px; background: none; }
.nav.r:hover { background: linear-gradient(270deg, rgba(0,0,0,.35), transparent); }
.pager { text-align: center; padding: 8px; color: var(--muted); font-variant-numeric: tabular-nums; }
.loading { position: absolute; color: var(--muted); }

/* video */
.player { flex: 1; min-height: 0; display: flex; align-items: center; justify-content: center; background: #000; }
.player video { width: 100%; height: 100%; object-fit: contain; background: #000; }
.strip { display: flex; gap: 12px; padding: 12px 16px; overflow-x: auto; background: var(--bg); }
.thumb { flex: 0 0 200px; text-align: left; border: 2px solid transparent; border-radius: 10px; overflow: hidden; background: var(--panel); }
.thumb video { width: 100%; height: 112px; object-fit: cover; display: block; pointer-events: none; background: #000; }
.thumb div { padding: 6px 10px; font-size: 13px; }
.thumb.on { border-color: var(--accent); }

/* рисование */
canvas.ink { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 5; pointer-events: none; touch-action: none; }
canvas.ink.active { pointer-events: auto; cursor: crosshair; }
.inktoggle { display: flex; align-items: center; gap: 6px; }
.inktoggle kbd { font: 11px ui-monospace, monospace; padding: 1px 6px; border-radius: 5px; border: 1px solid var(--line); }
#bar .inktoggle.on { background: var(--accent); color: #1a1409; }
.inkbar { position: absolute; z-index: 10; left: 50%; transform: translateX(-50%); top: 64px; display: flex; align-items: center; gap: 10px; padding: 8px 14px; border-radius: 14px; background: rgba(23,24,29,.92); border: 1px solid var(--line); backdrop-filter: blur(8px); }
.inkbar .dot { width: 26px; height: 26px; border-radius: 50%; border: 2px solid transparent; outline: 1px solid #0006; }
.inkbar .dot.on { border-color: var(--accent); box-shadow: 0 0 0 2px #0008; }
.inkbar .wd { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; }
.inkbar .wd i { background: #ccc; border-radius: 50%; display: block; }
.inkbar .wd.on { background: #2e3038; }
.inkbar .sep { width: 1px; height: 22px; background: var(--line); }
.inkbar .act { padding: 5px 10px; border-radius: 8px; color: var(--muted); }
.inkbar .act:hover { background: #2e3038; color: var(--text); }

/* мини-кадры */
.pdfbody { flex: 1; display: flex; min-height: 0; }
.thumbs { width: 190px; flex: none; overflow-y: auto; padding: 10px; display: flex; flex-direction: column; gap: 10px; background: var(--panel); border-right: 1px solid var(--line); }
.th { position: relative; width: 100%; flex: none; border: 2px solid transparent; border-radius: 6px; overflow: hidden; background: #22242b; padding: 0; }
.th canvas { width: 100%; height: 100%; display: block; }
.th b { position: absolute; left: 4px; bottom: 3px; font-size: 11px; background: rgba(0,0,0,.65); padding: 0 6px; border-radius: 8px; }
.th.on { border-color: var(--accent); }
.pager { display: flex; justify-content: center; align-items: center; gap: 24px; position: relative; }
.tbtn { position: absolute; left: 16px; color: var(--muted); padding: 2px 10px; border-radius: 8px; display: flex; gap: 6px; align-items: center; }
.tbtn kbd, .lasertoggle kbd { font: 11px ui-monospace, monospace; padding: 1px 6px; border-radius: 5px; border: 1px solid var(--line); }
.tbtn:hover { color: var(--text); background: #22242b; }
.tbtn.on { color: var(--accent); }

/* указка */
canvas.laserlayer { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 6; pointer-events: none; }
#views.laser, #views.laser * { cursor: none !important; }
#bar .lasertoggle { display: flex; align-items: center; gap: 6px; }
#bar .lasertoggle.on { background: #ff3b30; color: #fff; }


/* подсветка */
.spot { position: absolute; inset: 0; z-index: 7; pointer-events: none; --x: -999px; --y: -999px; --r: 150px;
  background: radial-gradient(circle at var(--x) var(--y), transparent calc(var(--r) * .82), rgba(0,0,0,.82) var(--r)); }
#bar .spotbtn.on, #bar .lensbtn.on { background: var(--accent); color: #1a1409; }
#bar .spotbtn, #bar .lensbtn { display: flex; align-items: center; gap: 6px; }
/* лупа */
.lens { position: absolute; z-index: 8; width: 220px; height: 220px; border-radius: 50%; overflow: hidden; pointer-events: none; border: 3px solid var(--accent); box-shadow: 0 8px 30px rgba(0,0,0,.6); background: #000; }
.lens canvas { width: 100%; height: 100%; display: block; }
#views.lensmode, #views.lensmode * { cursor: none !important; }

/* веб-вкладка (рум тур) */
.webframe { flex: 1; width: 100%; border: 0; background: #fff; }
.webmsg { margin: auto; text-align: center; color: var(--muted); line-height: 1.8; }
.webmsg small { color: #c66; }
.webmsg button { margin-top: 10px; padding: 8px 18px; border-radius: 10px; border: 1px solid var(--accent); color: var(--accent); }

/* главный экран: два ряда */
.row { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.rowtitle { font-size: 12px; letter-spacing: .25em; text-transform: uppercase; color: var(--muted); font-weight: 500; margin: 0; }
.card:not([style*="background-image"]) { background: linear-gradient(135deg, #2a2f2c, #1a1d1b); }
.audbtn { padding: 6px 12px; border-radius: 8px; color: var(--accent); border: 1px solid var(--line); font-size: 13px; }
.audbtn:hover { background: #22242b; }
.empty { margin: auto; color: var(--muted); font-size: 16px; text-align: center; padding: 24px; }

/* шестерёнки */
.cardwrap { position: relative; width: 360px; }
.gear { position: absolute; top: -40px; right: 4px; width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line); background: var(--panel); color: var(--muted); font-size: 16px; cursor: pointer; z-index: 2; }
.gear:hover { color: var(--accent); border-color: var(--accent); }
.gearbtn { width: 34px; height: 34px; border-radius: 8px; color: var(--muted); font-size: 16px; }
.gearbtn:hover { background: #22242b; color: var(--text); }
/* окно настройки */
.admwrap { position: fixed; inset: 0; z-index: 30; background: rgba(0,0,0,.6); display: flex; align-items: center; justify-content: center; padding: 16px; }
.admwrap[hidden] { display: none !important; }
.admsheet { width: 100%; max-width: 640px; max-height: 88vh; overflow: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.admhead { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; font-size: 17px; }
.admhead button { font-size: 22px; color: var(--muted); padding: 0 6px; }
.atab { border: 1px solid var(--line); border-radius: 12px; padding: 12px; margin-bottom: 10px; }
.ahead { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.ahead span { color: var(--muted); font-size: 12px; }
.afiles { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; }
.afile { display: flex; justify-content: space-between; align-items: center; font-size: 13px; padding: 4px 6px; border-radius: 6px; background: #101216; word-break: break-all; }
.adel { color: var(--muted); font-size: 16px; padding: 0 6px; }
.adel:hover { color: #e66; }
.abtn { padding: 8px 12px; border-radius: 9px; border: 1px solid var(--accent); color: var(--accent); font-size: 13px; }
.abtn:disabled { opacity: .6; }
.admhint { color: var(--muted); font-size: 13px; margin: 6px 0; }
.addtab { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.addtab input { flex: 1; min-width: 180px; padding: 9px 10px; border-radius: 9px; border: 1px solid var(--line); background: #101216; color: var(--text); font: inherit; }
.addtab select { padding: 9px; border-radius: 9px; border: 1px solid var(--line); background: #101216; color: var(--text); font: inherit; }

/* ---------- шапка: крупные кнопки, раскладка по краям ---------- */
#bar { justify-content: space-between; gap: 14px; padding: 14px 20px; min-height: 80px; }
#bar > #back { font-size: 16px; padding: 12px 18px; min-height: 50px; border: 1px solid var(--line); }
#bar > #pname { font-size: 19px; text-align: center; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.barright { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
#bar .barright button { min-height: 50px; min-width: 50px; padding: 12px 16px; font-size: 16px; border: 1px solid var(--line); border-radius: 12px; display: flex; align-items: center; justify-content: center; gap: 8px; }
#bar .barright button kbd { font-size: 13px; padding: 2px 7px; border-radius: 6px; }
#bar #zoomBtn { min-width: 84px; font-variant-numeric: tabular-nums; color: var(--text); }
#bar #themeBtn { font-size: 20px; }
#bar #fs { font-size: 20px; }
.gotobox { display: flex; align-items: center; gap: 8px; min-height: 50px; padding: 0 12px; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); font-size: 15px; }
.gotobox[hidden] { display: none !important; }
.gotobox input { width: 84px; height: 38px; padding: 0 8px; border-radius: 8px; border: 1px solid var(--line); background: #101216; color: var(--text); font: inherit; font-size: 17px; text-align: center; }
#bar #zoomBtn[hidden], #bar #goto[hidden] { display: none !important; }
#bar .inktoggle.on, #bar .lasertoggle.on, #bar .spotbtn.on, #bar .lensbtn.on { background: var(--accent); color: #1a1409; border-color: var(--accent); }
#bar .lasertoggle.on { background: #ff3b30; color: #fff; border-color: #ff3b30; }

/* ---------- светлая тема (для яркой переговорной) ---------- */
html.light {
  --bg: #f1f3f2; --panel: #ffffff; --line: #d9dfdc; --text: #1a201e; --muted: #5f6b66; --accent: #9a7433;
}
html.light #bar button:hover { background: #eef1ef; }
html.light .gotobox input { background: #ffffff; }

/* свои элементы управления видео */
.player { position: relative; }
.vctl { position: absolute; left: 0; right: 0; bottom: 0; display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: linear-gradient(transparent, rgba(0,0,0,.75)); }
.vbtn { color: #fff; font-size: 18px; padding: 6px 10px; border-radius: 8px; }
.vbtn:hover { background: rgba(255,255,255,.12); }
.vbar { flex: 1; height: 6px; background: rgba(255,255,255,.25); border-radius: 3px; cursor: pointer; }
.vfill { height: 100%; width: 0; background: var(--accent); border-radius: 3px; }
.vtime { color: #e6e6e6; font-size: 14px; font-variant-numeric: tabular-nums; min-width: 96px; text-align: right; }

/* полный экран: видео на всё окно, шапка и вкладки — по наведению к краям */
html.fsmode #views { position: absolute; inset: 0; }
html.fsmode #bar { position: absolute; top: 0; left: 0; right: 0; z-index: 25; opacity: 0; transition: opacity .2s; background: rgba(17,19,22,.92); }
html.fsmode #tabs { position: absolute; bottom: 0; left: 0; right: 0; z-index: 25; opacity: 0; transition: opacity .2s; background: rgba(17,19,22,.92); }
html.fsmode #bar.peek, html.fsmode #bar:hover, html.fsmode #tabs.peek, html.fsmode #tabs:hover { opacity: 1; }
html.fsmode .strip { display: none; }
html.fsmode .player { position: absolute; inset: 0; }

/* вкладка-сайт */
webview { flex: 1; width: 100%; height: 100%; background: #fff; }

/* чёрный экран */
.blackout { position: fixed; inset: 0; z-index: 60; background: #000; display: flex; align-items: center; justify-content: center; color: #555; font-size: 15px; }
.blackout[hidden] { display: none !important; }
/* возврат к презентации */
#bar #backPdf { color: var(--accent); border-color: var(--accent); }
#bar #backPdf[hidden] { display: none !important; }
/* предпоказовая проверка */
.preflight { margin: 0 16px 10px; padding: 10px 14px; border-radius: 10px; font-size: 14px; background: #1d2a23; color: #bfe6cf; border: 1px solid #2f5a44; max-width: 720px; }
.preflight.bad { background: #2a1d1d; color: #f2c1c1; border-color: #6a3a3a; }
.preflight ul { margin: 6px 0 0 18px; padding: 0; }
.preflight { position: relative; display: flex; gap: 12px; justify-content: space-between; align-items: flex-start; }
.pfclose { font-size: 20px; line-height: 1; color: inherit; opacity: .7; padding: 0 4px; }
.pfclose:hover { opacity: 1; }

/* вход и пользователи */
.userbar{position:fixed;top:12px;right:16px;z-index:50;display:flex;gap:8px;align-items:center;font-size:13px;opacity:.85}
.userbar span{opacity:.7}
.userbar button{background:transparent;color:inherit;border:1px solid currentColor;border-radius:8px;padding:4px 10px;cursor:pointer;font:inherit;opacity:.8}
.userbar button:hover{opacity:1}
.loginbox{max-width:340px;margin:18vh auto 0;padding:0 20px;display:flex;flex-direction:column;gap:12px}
.loginbox h1{font-size:22px;margin:0 0 8px}
.loginbox input{padding:10px 12px;border-radius:8px;border:1px solid #888;background:transparent;color:inherit;font:inherit}
.loginbox button{padding:10px;border-radius:8px;border:0;background:var(--accent);color:#111;font:inherit;cursor:pointer}
.loginbox .err{color:#e5484d;min-height:1.2em;font-size:14px}