/* nk-phase17: چالش زنجیره — کارت خانه، نوار اتاق مطالعه، برگهٔ جزئیات */
.nkc,.nkc-strip,.nkc-sheet{--g1:#fde68a;--g2:#fbbf24;--g3:#f59e0b;--ink:#ede9fe;--soft:rgba(221,214,254,.78)}
.nkc{position:relative;overflow:hidden;direction:rtl;color:#fff;border-radius:22px;margin:0 0 14px;
  background:linear-gradient(140deg,#1e1b4b 0%,#2d1b69 42%,#4c1d95 74%,#6b21a8 100%);box-shadow:0 12px 30px rgba(76,29,149,.32),inset 0 1px 0 rgba(255,255,255,.08);
  -webkit-tap-highlight-color:transparent;cursor:pointer;transition:transform .15s;font-family:inherit;box-sizing:border-box}
.nkc *{box-sizing:border-box}
.nkc:active{transform:scale(.988)}
.nkc-bg{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.nkc-bg:before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(167,139,250,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(167,139,250,.07) 1px,transparent 1px);background-size:26px 26px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 85%);mask-image:linear-gradient(180deg,#000,transparent 85%)}
.nkc-orb{position:absolute;border-radius:50%;filter:blur(40px);pointer-events:none}
.nkc-orb.o1{width:170px;height:170px;background:rgba(251,191,36,.26);top:-70px;left:-50px;animation:nkcF1 7s ease-in-out infinite}
.nkc-orb.o2{width:150px;height:150px;background:rgba(219,39,119,.30);bottom:-70px;right:-40px;animation:nkcF2 9s ease-in-out infinite}
@keyframes nkcF1{50%{transform:translate(18px,14px)}}
@keyframes nkcF2{50%{transform:translate(-16px,-12px)}}
.nkc-in{position:relative;padding:16px 16px 14px}

.nkc-top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.nkc-eye{font-size:11px;font-weight:700;color:#c4b5fd;letter-spacing:.2px;display:flex;align-items:center;gap:6px;margin-bottom:3px}
.nkc-eye .dot{width:7px;height:7px;border-radius:50%;background:#4ade80;box-shadow:0 0 0 0 rgba(74,222,128,.6);animation:nkcLive 1.8s infinite}
@keyframes nkcLive{70%{box-shadow:0 0 0 7px rgba(74,222,128,0)}100%{box-shadow:0 0 0 0 rgba(74,222,128,0)}}
.nkc-title{font-size:18px;font-weight:900;line-height:1.45;text-shadow:0 2px 12px rgba(0,0,0,.25)}
.nkc-sub{font-size:11.5px;color:var(--soft);margin-top:1px;line-height:1.7}
.nkc-prize{flex-shrink:0;text-align:center;background:linear-gradient(145deg,#fff3c4,#fbbf24 45%,#f59e0b);color:#3b1d0a;border-radius:14px;padding:6px 10px 6px;min-width:84px;max-width:128px;
  box-shadow:0 6px 18px rgba(245,158,11,.42),inset 0 1px 0 rgba(255,255,255,.7);position:relative;overflow:hidden}
.nkc-prize:after{content:'';position:absolute;top:0;bottom:0;width:40%;left:-60%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.65),transparent);animation:nkcShine 3.6s ease-in-out infinite}
@keyframes nkcShine{0%,55%{left:-60%}100%{left:130%}}
.nkc-prize small{display:block;font-size:9.5px;font-weight:800;opacity:.75}
.nkc-prize b{display:block;font-size:12.5px;font-weight:900;line-height:1.35;word-break:break-word}

/* زنجیره */
.nkc-chain{margin:14px 0 12px;display:flex;flex-direction:column;gap:7px}
.nkc-row{display:flex;align-items:center;direction:rtl}
.nkc-l{position:relative;flex:1 1 0;min-width:0;height:18px;border-radius:10px;border:3px solid rgba(255,255,255,.17);background:rgba(255,255,255,.03)}
.nkc-c{flex:0 0 9px;height:5px;margin:0 -3px;border-radius:3px;background:rgba(255,255,255,.14);position:relative;z-index:1}
.nkc-l.s1{border-color:transparent;background:linear-gradient(135deg,rgba(253,230,138,.38),rgba(245,158,11,.22)) padding-box,linear-gradient(135deg,var(--g1),var(--g3)) border-box;box-shadow:0 0 10px rgba(251,191,36,.45)}
.nkc-c.s1{background:linear-gradient(90deg,var(--g1),var(--g3));box-shadow:0 0 6px rgba(251,191,36,.5)}
.nkc-l.s0{border-color:rgba(248,113,113,.55);border-style:dashed;background:rgba(239,68,68,.08)}
.nkc-l.s0:after{content:'';position:absolute;left:50%;top:-5px;bottom:-5px;width:2px;background:rgba(248,113,113,.75);transform:rotate(25deg)}
.nkc-l.s2{border-color:var(--g2);border-style:dashed;overflow:hidden;animation:nkcPulse 1.6s ease-in-out infinite}
.nkc-l.s2 i{position:absolute;top:0;bottom:0;right:0;background:linear-gradient(270deg,rgba(253,230,138,.9),rgba(251,191,36,.75));border-radius:6px;transition:width .6s}
@keyframes nkcPulse{50%{box-shadow:0 0 0 4px rgba(251,191,36,.18)}}
.nkc-l.s2.ok{animation:none;border-style:solid}
.nkc-l.s3{border-color:rgba(255,255,255,.15)}
.nkc.compact .nkc-l{height:14px;border-width:2.5px}

/* پیشرفت امروز */
.nkc-today{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.09);border-radius:14px;padding:10px 12px;margin-bottom:10px}
.nkc-trow{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-size:12px;color:var(--soft)}
.nkc-trow b{color:#fff;font-size:16px;font-weight:900;font-variant-numeric:tabular-nums}
.nkc-trow .of{font-size:11.5px;color:var(--soft)}
.nkc-bar{position:relative;height:8px;border-radius:8px;background:rgba(255,255,255,.12);overflow:hidden;margin:8px 0 6px}
.nkc-bar i{position:absolute;right:0;top:0;bottom:0;border-radius:8px;background:linear-gradient(270deg,#f472b6,var(--g2),var(--g1));transition:width .6s}
.nkc-bar i:after{content:'';position:absolute;inset:0;background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.55),transparent 70%);background-size:200% 100%;animation:nkcRun 2.2s linear infinite}
@keyframes nkcRun{from{background-position:200% 0}to{background-position:-200% 0}}
.nkc-hint{font-size:11.5px;color:#e9d5ff;line-height:1.7}
.nkc-hint.ok{color:#fde68a;font-weight:800}
.nkc-hint.bad{color:#fecaca}

.nkc-chips{display:flex;gap:6px;flex-wrap:wrap}
.nkc-chip{font-size:11px;font-weight:700;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:4px 10px;white-space:nowrap}
.nkc-chip.gold{background:rgba(251,191,36,.16);border-color:rgba(251,191,36,.38);color:#fde68a}
.nkc-more{display:flex;justify-content:flex-end;margin-top:10px;font-size:11px;color:#c4b5fd;font-weight:700;gap:4px;align-items:center}
.nkc-more svg{width:13px;height:13px}

/* به‌زودی */
.nkc-count{display:flex;align-items:center;gap:12px;margin:14px 0 12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:10px 12px}
.nkc-count .n{font-size:22px;font-weight:900;color:#fde68a;white-space:nowrap;font-variant-numeric:tabular-nums}
.nkc-count .t{font-size:11.5px;color:var(--soft);line-height:1.7}
.nkc-rules{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-bottom:12px}
.nkc-rule{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:8px 6px;text-align:center;font-size:10.5px;color:var(--soft);line-height:1.5}
.nkc-rule b{display:block;font-size:13px;color:#fff;font-weight:900;margin-top:2px}
.nkc-rule .e{font-size:17px;display:block}
.nkc-ghost .nkc-l{animation:nkcGhost 2.4s ease-in-out infinite}
.nkc-ghost .nkc-l:nth-child(4n+1){animation-delay:.3s}.nkc-ghost .nkc-l:nth-child(4n+3){animation-delay:.6s}
@keyframes nkcGhost{50%{border-color:rgba(251,191,36,.45)}}

/* بدون چالش — کارت افقی */
.nkc.flat{display:flex;align-items:center;gap:13px;padding:14px 14px;min-height:84px}
.nkc.flat .nkc-ico{position:relative;width:54px;height:54px;border-radius:16px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,rgba(251,191,36,.25),rgba(219,39,119,.25));border:1px solid rgba(251,191,36,.35);box-shadow:0 0 22px rgba(251,191,36,.25)}
.nkc.flat .nkc-ico svg{width:30px;height:30px;animation:nkcSwing 3s ease-in-out infinite;transform-origin:50% 50%}
@keyframes nkcSwing{0%,100%{transform:rotate(-8deg)}50%{transform:rotate(8deg)}}
.nkc.flat .nkc-txt{position:relative;flex:1;min-width:0}
.nkc.flat .nkc-title{font-size:15.5px}
.nkc.flat .nkc-bell{position:relative;flex-shrink:0;font-size:11px;font-weight:800;color:#fde68a;background:rgba(251,191,36,.14);border:1px solid rgba(251,191,36,.35);border-radius:20px;padding:5px 10px;white-space:nowrap}
.nkc.flat .nkc-bell span{display:inline-block;animation:nkcRing 2.6s ease-in-out infinite;transform-origin:50% 0}
@keyframes nkcRing{0%,70%,100%{transform:rotate(0)}75%{transform:rotate(16deg)}82%{transform:rotate(-14deg)}89%{transform:rotate(8deg)}}

/* پایان / برنده */
.nkc-res{display:flex;gap:10px;align-items:center;margin:12px 0 10px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:10px 12px;font-size:12px;color:var(--soft);line-height:1.8}
.nkc-res b{color:#fff}
.nkc-res .big{font-size:26px;flex-shrink:0}
.nkc-win{display:flex;align-items:center;gap:10px;background:linear-gradient(135deg,rgba(251,191,36,.2),rgba(219,39,119,.16));border:1px solid rgba(251,191,36,.4);border-radius:14px;padding:9px 12px;margin-top:7px}
.nkc-win .av{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;font-size:19px;flex-shrink:0;box-shadow:0 0 0 2px rgba(251,191,36,.6)}
.nkc-win .nm{font-weight:900;font-size:14px}
.nkc-win .ct{font-size:11px;color:var(--soft)}
.nkc-win .cr{margin-right:auto;font-size:20px}
.nkc-me{margin-top:10px;text-align:center;font-weight:900;font-size:15px;color:#3b1d0a;background:linear-gradient(135deg,#fff3c4,#fbbf24,#f59e0b);border-radius:14px;padding:10px;box-shadow:0 8px 22px rgba(245,158,11,.45)}
.nkc-me small{display:block;font-size:11px;font-weight:700;opacity:.8;margin-top:2px}

/* نوار زیر تایمر */
#study-clock-banner{z-index:1}
.nkc-strip{position:relative;z-index:0;overflow:hidden;direction:rtl;margin:-44px 12px 20px;border-radius:0 0 20px 20px;padding:36px 14px 11px;cursor:pointer;-webkit-tap-highlight-color:transparent;color:#fff;
  background:linear-gradient(160deg,#3b1d78,#4c1d95 55%,#6b21a8);box-shadow:0 12px 26px rgba(76,29,149,.28);animation:nkcDrop .5s cubic-bezier(.3,1.3,.6,1) both}
@keyframes nkcDrop{from{transform:translateY(-14px);opacity:0}to{transform:none;opacity:1}}
.nkc-strip:before{content:'';position:absolute;bottom:0;right:30px;left:30px;height:1px;background:linear-gradient(90deg,transparent,rgba(251,191,36,.6),transparent)}
.nkc-strip .r1{display:flex;align-items:center;justify-content:space-between;gap:8px}
.nkc-strip .lb{font-size:12.5px;font-weight:800;display:flex;align-items:center;gap:6px;min-width:0;white-space:nowrap;overflow:hidden}
.nkc-strip .lb .nm{color:#c4b5fd;font-weight:700;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nkc-strip .tm{font-size:13px;font-weight:900;white-space:nowrap;font-variant-numeric:tabular-nums}
.nkc-strip .tm small{font-size:11px;color:#c4b5fd;font-weight:700}
.nkc-strip .nkc-bar{margin:8px 0 6px;height:7px}
.nkc-strip .r2{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:11px;color:#ddd6fe}
.nkc-strip .wk{display:flex;align-items:center;flex:0 0 112px}
.nkc-strip .wk .nkc-l{height:11px;border-width:2px;border-radius:7px}
.nkc-strip .wk .nkc-c{flex-basis:6px;height:3px;margin:0 -2px}
.nkc-strip.done{background:linear-gradient(140deg,#3b1d6e,#6b21a8 55%,#a16207);border-top-color:rgba(253,230,138,.7)}

/* برگهٔ جزئیات */
.nkc-sheet{position:fixed;inset:0;z-index:9998;background:rgba(10,6,30,.55);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);display:flex;align-items:flex-end;justify-content:center;opacity:0;transition:opacity .2s}
.nkc-sheet.open{opacity:1}
.nkc-sheet .pnl{position:relative;width:100%;max-width:520px;max-height:88vh;overflow-y:auto;border-radius:24px 24px 0 0;padding:10px 16px calc(18px + env(safe-area-inset-bottom));direction:rtl;color:#fff;
  background:linear-gradient(170deg,#1e1b4b 0%,#2d1b69 50%,#3b0764 100%);transform:translateY(40px);transition:transform .25s cubic-bezier(.3,1.3,.6,1);box-shadow:0 -10px 40px rgba(0,0,0,.35)}
.nkc-sheet.open .pnl{transform:none}
.nkc-sheet .grab{width:42px;height:5px;border-radius:5px;background:rgba(255,255,255,.25);margin:0 auto 12px}
.nkc-sheet .x{position:absolute;left:12px;top:12px;width:34px;height:34px;border-radius:50%;border:0;background:rgba(255,255,255,.1);color:#fff;font-size:18px;cursor:pointer;font-family:inherit}
.nkc-sheet h3{font-size:19px;font-weight:900;margin:0 0 2px;padding-left:40px}
.nkc-sheet .dt{font-size:12px;color:#c4b5fd;margin-bottom:12px}
.nkc-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin-bottom:14px}
.nkc-kpi{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:13px;padding:9px 4px;text-align:center}
.nkc-kpi b{display:block;font-size:18px;font-weight:900;color:#fde68a}
.nkc-kpi span{font-size:10px;color:#ddd6fe}
.nkc-days{display:grid;grid-template-columns:repeat(7,1fr);gap:5px;margin-bottom:6px}
.nkc-day{border-radius:11px;padding:6px 2px 5px;text-align:center;font-size:9.5px;line-height:1.5;color:#ddd6fe;background:rgba(255,255,255,.05);border:1.5px solid rgba(255,255,255,.1)}
.nkc-day b{display:block;font-size:12px;color:#fff}
.nkc-day.s1{background:linear-gradient(145deg,rgba(253,230,138,.28),rgba(245,158,11,.18));border-color:rgba(251,191,36,.7)}
.nkc-day.s0{background:rgba(239,68,68,.12);border-color:rgba(248,113,113,.5);border-style:dashed}
.nkc-day.s2{border-color:#fbbf24;border-style:dashed}
.nkc-day.s3{opacity:.55}
.nkc-legend{display:flex;gap:10px;flex-wrap:wrap;font-size:10.5px;color:#c4b5fd;margin:6px 0 14px}
.nkc-legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-left:4px;vertical-align:-1px}
.nkc-sheet h4{font-size:14px;font-weight:900;margin:4px 0 8px;color:#fde68a}
.nkc-sheet ul{margin:0 0 6px;padding:0 18px 0 0;font-size:12.5px;line-height:2.05;color:#ede9fe}
.nkc-sheet ul b{color:#fff}

.nkc-confetti{position:fixed;inset:0;pointer-events:none;z-index:9999;overflow:hidden}
.nkc-confetti i{position:absolute;top:-12px;width:8px;height:12px;border-radius:2px;animation:nkcFall linear forwards}
@keyframes nkcFall{to{transform:translateY(105vh) rotate(720deg)}}

@media (max-width:360px){.nkc-title{font-size:16px}.nkc-prize{min-width:74px}.nkc-rules{gap:5px}.nkc-kpi b{font-size:16px}}
@media (prefers-reduced-motion:reduce){.nkc *,.nkc-strip *{animation:none!important}}