:root{
  --bg:#0f1115; --panel:#171a21; --panel2:#1d212a; --line:#2a2f3a; --line2:#363c49;
  --ink:#e7e9ee; --ink2:#aab2c0; --muted:#7e879a; --accent:#6c8cff; --accent2:#5b7bf0;
  --good:#46b67c; --warn:#e0a13a; --bad:#e05a4a; --r:10px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:14px;height:100vh;overflow:hidden}
a{color:var(--accent);text-decoration:none}
button{font-family:inherit;cursor:pointer}
.row{display:flex}.grow{flex:1;min-width:0}.muted{color:var(--muted)}.mono{font-family:ui-monospace,monospace}

/* top bar */
.top{height:52px;display:flex;align-items:center;gap:14px;padding:0 16px;border-bottom:1px solid var(--line);background:var(--panel);position:relative;z-index:5}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;letter-spacing:-.01em}
.logo .dot{width:22px;height:22px;border-radius:7px;background:linear-gradient(135deg,var(--accent),#9b7bff);display:grid;place-items:center;color:#fff;font-size:13px}
.top .proj{font-weight:600}.top .crumb{color:var(--muted)}
.seg{display:inline-flex;background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:3px}
.seg button{border:0;background:transparent;color:var(--ink2);font-weight:600;font-size:12.5px;padding:6px 13px;border-radius:999px}
.seg button.on{background:var(--accent);color:#fff}
.author{display:flex;align-items:center;gap:7px;margin-left:auto}
.author input{background:var(--panel2);border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:7px 10px;font-size:13px;width:150px}

/* layout */
.app{display:flex;height:calc(100vh - 52px)}
.side{width:248px;flex:none;border-right:1px solid var(--line);background:var(--panel);overflow:auto;padding:14px 12px}
.side h4{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:14px 6px 7px}
.s-item{display:flex;align-items:center;gap:8px;padding:8px 9px;border-radius:8px;color:var(--ink2);font-size:13px;font-weight:500}
.s-item:hover{background:var(--panel2);color:var(--ink)}
.s-item.on{background:var(--accent);color:#fff}
.s-item .cc{margin-left:auto;font-size:11px;background:var(--bad);color:#fff;border-radius:999px;padding:1px 7px;font-weight:700}
.s-item.on .cc{background:rgba(255,255,255,.25)}
.flowlink{display:block;padding:7px 9px;border-radius:8px;color:var(--ink2);font-size:13px}
.flowlink:hover{background:var(--panel2);color:var(--ink)}
.flowlink.on{background:var(--accent);color:#fff}

/* stage */
.stage{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden;background:radial-gradient(circle at 50% 0,#161a22,#0f1115)}
.stage-canvas{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;padding:22px;overflow:hidden;position:relative}
.flowbtn{position:absolute;bottom:18px;z-index:6;font-weight:600;font-size:13px;padding:10px 16px;border-radius:999px;border:1px solid var(--line);background:var(--panel2);color:var(--ink);box-shadow:0 8px 20px rgba(0,0,0,.45);max-width:42%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.flowbtn.next{left:50%;transform:translateX(-50%);background:var(--accent);border-color:var(--accent);color:#fff}
.flowbtn.prev{left:18px}
.flowbtn:hover{filter:brightness(1.08)}
/* The image renders at a readable natural width; .frame is a bounded viewport that scrolls when
   the shot is taller than the space (JS sizes both in fitFrame()). Hotspots/pins are positioned
   as % of .stage-inner, which stays at the image's FULL height, so scrolling keeps them aligned. */
.frame{box-sizing:border-box;overflow:auto;border-radius:10px;background:#0b0d12;box-shadow:0 18px 50px rgba(0,0,0,.5);max-width:100%;max-height:100%}
.frame.phone{border:7px solid #14171d;border-radius:30px;box-shadow:0 18px 55px rgba(0,0,0,.6)}
.frame::-webkit-scrollbar{width:10px;height:10px}
.frame::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:8px}
.frame::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.28)}
.stage-inner{position:relative;display:block}
.stage-inner img{display:block;width:100%;height:auto}
.hotspot{position:absolute;border-radius:8px;cursor:pointer;border:1.5px solid transparent;transition:background .15s,border-color .15s}
.mode-nav .hotspot:hover{background:rgba(108,140,255,.22);border-color:var(--accent)}
.hotspot.flownext{background:rgba(108,140,255,.14);border-color:rgba(108,140,255,.55);animation:flownextpulse 1.8s ease-in-out infinite}
@keyframes flownextpulse{0%,100%{box-shadow:0 0 0 0 rgba(108,140,255,0)}50%{box-shadow:0 0 0 5px rgba(108,140,255,.2)}}
#hotlayer.flash .hotspot{animation:hsflash .85s ease}
@keyframes hsflash{0%,100%{background:transparent;border-color:transparent}22%,55%{background:rgba(108,140,255,.30);border-color:var(--accent)}}

/* flow stepper bar */
.flowbar{flex:none;display:flex;align-items:center;gap:14px;padding:9px 16px;border-bottom:1px solid var(--line);background:var(--panel)}
.flowbar .finfo{display:flex;flex-direction:column;line-height:1.25;min-width:150px}
.flowbar .finfo b{font-size:13px}
.flowbar .fpos{font-size:11px;color:var(--muted)}
.fnav{width:30px;height:30px;border-radius:8px;border:1px solid var(--line);background:var(--panel2);color:var(--ink);font-size:16px;line-height:1}
.fnav:disabled{opacity:.3;cursor:default}
.fdots{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.fstep{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;background:var(--panel2);color:var(--ink2);border:1px solid var(--line);cursor:pointer}
.fstep.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.fsep{width:12px;height:1px;background:var(--line2)}
.fexit{margin-left:auto;background:none;border:1px solid var(--line);color:var(--ink2);border-radius:8px;padding:6px 10px;font-size:12px;font-weight:600}
.fexit:hover{color:var(--ink)}
.pin{position:absolute;width:26px;height:26px;border-radius:50% 50% 50% 2px;background:var(--warn);color:#1a1206;font-weight:800;font-size:12px;display:grid;place-items:center;transform:translate(-50%,-100%);box-shadow:0 3px 8px rgba(0,0,0,.4);cursor:pointer;border:2px solid #fff}
.pin.resolved{background:var(--good);color:#06140c}
.pin.sel{outline:3px solid #fff;outline-offset:1px}
.mode-comment .stage-inner{cursor:crosshair}

/* comments panel */
.cpanel{width:330px;flex:none;border-left:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column}
.cpanel .ch{padding:13px 14px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}
.cpanel .ch b{font-size:13px}
.filterbtn{font-size:11.5px;color:var(--ink2);background:var(--panel2);border:1px solid var(--line);border-radius:7px;padding:5px 9px;margin-left:auto}
.clist{flex:1;overflow:auto;padding:10px 12px}
.thread{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:11px;margin-bottom:10px}
.thread.resolved{opacity:.6}
.thread .meta{display:flex;align-items:center;gap:7px;font-size:12px;margin-bottom:5px}
.thread .num{width:18px;height:18px;border-radius:50%;background:var(--warn);color:#1a1206;font-weight:800;font-size:11px;display:grid;place-items:center;flex:none}
.thread.resolved .num{background:var(--good)}
.thread .who{font-weight:700}.thread .when{color:var(--muted);margin-left:auto;font-size:11px}
.thread .body{font-size:13px;line-height:1.5;color:var(--ink)}
.thread .scr{font-size:11px;color:var(--muted);margin-top:4px}
.reply{font-size:12.5px;border-top:1px dashed var(--line2);margin-top:8px;padding-top:7px}
.reply .who{font-weight:700}
.acts{display:flex;gap:10px;margin-top:8px}
.acts button{background:none;border:0;color:var(--ink2);font-size:12px;font-weight:600;padding:0}
.acts button:hover{color:var(--ink)}
.composer{border-top:1px solid var(--line);padding:11px 12px;background:var(--panel)}
.composer textarea{width:100%;background:var(--panel2);border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:9px;font-family:inherit;font-size:13px;resize:vertical;min-height:58px}
.composer .b{display:flex;gap:8px;margin-top:8px;align-items:center}
.btn{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:8px 14px;font-weight:600;font-size:13px}
.btn.ghost{background:var(--panel2);border:1px solid var(--line);color:var(--ink2)}
.hintbar{font-size:12px;color:var(--muted);padding:8px 12px;border-top:1px solid var(--line);background:var(--panel)}

/* picker / flow view */
.center-wrap{height:100vh;overflow:auto;padding:48px}
.picker{max-width:760px;margin:0 auto}
.picker h1{font-size:24px;font-weight:700;letter-spacing:-.02em}
.picker p{color:var(--ink2);margin-top:6px}
.pcard{display:flex;align-items:center;gap:14px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;margin-top:14px}
.pcard:hover{border-color:var(--line2)}
.pcard .t{font-weight:700;font-size:16px}.pcard .s{color:var(--muted);font-size:13px;margin-top:2px}
.pcard .n{margin-left:auto;color:var(--ink2);font-size:13px}
.flowboard{padding:24px}
.flowrow{margin-bottom:30px}
.flowrow h3{font-size:15px;font-weight:700;margin-bottom:12px}
.flowsteps{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.fthumb{width:150px;border-radius:8px;border:1px solid var(--line);background:var(--panel);overflow:hidden;cursor:pointer}
.fthumb img{width:100%;display:block;height:230px;object-fit:cover;object-position:top}
.fthumb .ft{font-size:11.5px;padding:6px 8px;color:var(--ink2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.farrow{color:var(--muted);margin:0 10px}

/* Responsive top bar: on narrow screens the bar wraps into rows instead of
   crushing the review buttons; segments shrink but never deform. */
@media (max-width: 860px) {
  .top{height:auto;min-height:52px;flex-wrap:wrap;row-gap:6px;padding:8px 10px}
  .top .crumb{display:none}
  .seg{flex-wrap:nowrap}
  .seg button{padding:6px 10px;font-size:12px;white-space:nowrap}
  .top .author{margin-left:auto}
  .top .author input{width:110px}
}
@media (max-width: 520px) {
  .seg button{padding:6px 8px;font-size:11.5px}
  .top .author{width:100%;margin-left:0}
  .top .author input{flex:1;width:auto}
}