/* Project Meridian — Miro-style task board. */
:root{
  --ink:#1f2430; --muted:#6b7280; --line:#e5e7eb; --bg:#eceef1;
  --amber:#f59e0b; --amber-d:#d97706;
  --s-todo:#94a3b8; --s-prog:#f59e0b; --s-done:#22c55e; --s-block:#ef4444;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;overflow:hidden;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg)}
button{font-family:inherit}

/* ---------- top bar ---------- */
.topbar{position:fixed;top:0;left:0;right:0;height:54px;z-index:30;display:flex;align-items:center;justify-content:space-between;
  padding:0 14px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);box-shadow:0 1px 4px rgba(16,24,40,.04)}
.tb-left,.tb-right{display:flex;align-items:center;gap:14px}
.tb-brand{font-weight:600;font-size:1.02rem;white-space:nowrap}
.tb-brand b{color:var(--amber-d)}
.tb-logo{font-size:1.05rem}
.tb-progress{display:flex;align-items:center;gap:8px;min-width:230px}
.tb-progress__bar{flex:1;height:8px;background:#dfe3e8;border-radius:99px;overflow:hidden}
.tb-progress__bar span{display:block;height:100%;background:linear-gradient(90deg,#22c55e,#16a34a);transition:width .5s ease}
.tb-progress__label{font-size:.78rem;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.tb-sync{font-size:.76rem;color:var(--muted);white-space:nowrap}
.badge{font-size:.7rem;font-weight:600;padding:.14rem .5rem;border-radius:99px}
.badge--mock{background:#eef2ff;color:#4f46e5}
.badge--live{background:#dcfce7;color:#15803d}
.btn{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:8px;padding:.4rem .7rem;font-size:.82rem;font-weight:500;cursor:pointer;text-decoration:none;white-space:nowrap;transition:.15s}
.btn:hover{background:#f8fafc}
.btn--primary{background:var(--amber);border-color:var(--amber-d);color:#1f2430;font-weight:600}
.btn--primary:hover{background:var(--amber-d);color:#fff}
.btn--ghost{background:transparent}
.btn--ai{background:#111827;color:#fff;border-color:#111827;width:100%;margin-top:8px}
.btn--ai:hover{background:#0b1220}

/* ---------- canvas ---------- */
#board-viewport{position:fixed;inset:54px 0 0 0;overflow:hidden;cursor:grab;touch-action:none}
#board-viewport.grabbing{cursor:grabbing}
#board-world{position:absolute;top:0;left:0;width:8000px;height:6000px;transform-origin:0 0;
  background-image:radial-gradient(circle,#cfd4db 1.4px,transparent 1.4px);background-size:26px 26px}

/* ---------- frame ---------- */
.frame{position:absolute;width:380px;background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:0 4px 16px rgba(16,24,40,.08);display:flex;flex-direction:column;overflow:hidden}
.frame__head{padding:10px 12px;border-top:4px solid var(--fc,#6366f1);cursor:grab;user-select:none}
.frame__head.dragging{cursor:grabbing}
.frame__title{display:flex;align-items:center;justify-content:space-between;gap:8px}
.frame__name{font-weight:700;font-size:.96rem}
.frame__key{font-size:.66rem;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f3f4f6;padding:.05rem .35rem;border-radius:5px}
.frame__bar{height:6px;background:#eef1f4;border-radius:99px;overflow:hidden;margin-top:8px}
.frame__bar span{display:block;height:100%;background:var(--fc,#6366f1);transition:width .5s ease}
.frame__meta{display:flex;align-items:center;justify-content:space-between;margin-top:6px;font-size:.72rem;color:var(--muted)}
.frame__counts{display:flex;gap:8px}
.frame__counts i{font-style:normal;display:inline-flex;align-items:center;gap:3px}
.dot{width:8px;height:8px;border-radius:99px;display:inline-block}
.dot--todo{background:var(--s-todo)} .dot--prog{background:var(--s-prog)} .dot--done{background:var(--s-done)} .dot--block{background:var(--s-block)}
.frame__body{padding:10px;display:grid;grid-template-columns:1fr 1fr;gap:8px;max-height:520px;overflow:auto}
.frame__body.empty{display:block;color:var(--muted);font-size:.8rem;text-align:center;padding:18px}

/* ---------- card ---------- */
.card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--cc,#94a3b8);border-radius:9px;padding:8px 9px;cursor:pointer;transition:.12s;min-height:78px;display:flex;flex-direction:column;gap:6px}
.card:hover{box-shadow:0 3px 10px rgba(16,24,40,.12);transform:translateY(-1px)}
.card__top{display:flex;align-items:center;justify-content:space-between;gap:6px}
.card__key{font-size:.64rem;color:var(--muted);font-family:ui-monospace,Menlo,monospace}
.card__badge{font-size:.6rem;font-weight:700;padding:.05rem .35rem;border-radius:5px;color:#fff;white-space:nowrap}
.b--todo{background:var(--s-todo)} .b--prog{background:var(--s-prog)} .b--done{background:var(--s-done)} .b--block{background:var(--s-block)}
.card__sum{font-size:.8rem;line-height:1.25;font-weight:500;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{display:flex;align-items:center;gap:6px;margin-top:auto;flex-wrap:wrap}
.chip{font-size:.62rem;color:var(--muted);background:#f3f4f6;border-radius:5px;padding:.05rem .3rem}
.chip--local{background:#fef3c7;color:#92400e}
.avatar{width:18px;height:18px;border-radius:99px;background:#6366f1;color:#fff;font-size:.58rem;font-weight:700;display:inline-flex;align-items:center;justify-content:center}
.avatar--none{background:#cbd5e1}

/* ---------- zoom ctl ---------- */
.zoomctl{position:fixed;left:16px;bottom:16px;z-index:30;display:flex;flex-direction:column;gap:5px}
.zoomctl button{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:9px;font-size:1.05rem;cursor:pointer;box-shadow:0 2px 6px rgba(16,24,40,.08)}
.zoomctl button:hover{background:var(--amber);color:#fff}

/* ---------- panel ---------- */
.panel{position:fixed;top:54px;right:0;bottom:0;width:380px;max-width:92vw;z-index:40;background:#fff;border-left:1px solid var(--line);
  box-shadow:-8px 0 30px rgba(16,24,40,.12);display:flex;flex-direction:column;animation:slidein .2s ease}
@keyframes slidein{from{transform:translateX(100%)}to{transform:translateX(0)}}
.panel__head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line);font-weight:700}
.panel__x{border:0;background:none;font-size:1.4rem;line-height:1;cursor:pointer;color:var(--muted)}
.panel__body{padding:14px 16px;overflow:auto;flex:1}
.panel__foot{padding:12px 16px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}
.panel__divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:.72rem;margin:14px 0 6px}
.panel__divider:before,.panel__divider:after{content:"";flex:1;height:1px;background:var(--line)}
.lbl{display:block;font-size:.72rem;font-weight:600;color:var(--muted);margin:10px 0 4px}
.inp{width:100%;border:1px solid var(--line);border-radius:8px;padding:.5rem .6rem;font-size:.85rem;font-family:inherit;color:var(--ink);background:#fff}
.inp:focus{outline:2px solid #c7d2fe;border-color:#a5b4fc}
textarea.inp{resize:vertical}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ai-hint{font-size:.72rem;margin-top:6px;min-height:1em}
.ai-hint.err{color:#b91c1c}
.ai-hint.ok{color:#15803d}

/* ---------- misc ---------- */
.loading{position:fixed;inset:54px 0 0 0;z-index:25;display:flex;align-items:center;justify-content:center;gap:10px;color:var(--muted);background:var(--bg);transition:opacity .4s}
.loading.hide{opacity:0;pointer-events:none}
.spinner{width:22px;height:22px;border:3px solid #d6dae0;border-top-color:var(--amber);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.toasts{position:fixed;right:16px;bottom:16px;z-index:50;display:flex;flex-direction:column;gap:8px;align-items:flex-end}
.toast{background:#111827;color:#fff;padding:.6rem .9rem;border-radius:9px;font-size:.82rem;box-shadow:0 8px 24px rgba(0,0,0,.25);animation:slidein .2s ease;max-width:340px}
.toast--err{background:#b91c1c}
.toast--ok{background:#15803d}