/* JEE 2027 Dashboard — dark theme (elegance pass, Aug 2026) */
:root{
  --bg:#0a0c12; --panel:#10141d; --panel2:#161b28;
  --border:rgba(148,163,184,.13); --border2:rgba(148,163,184,.22);
  --text:#e8ebf2; --muted:#8b93a7; --faint:#5d6579;
  --accent:#7d9bff; --accent2:#a78bfa;
  --phys:#5aa2ff; --chem:#4ade80; --math:#c084fc;
  --high:#f87171; --med:#fbbf24; --low:#64748b;
  --ok:#34d399; --warn:#fbbf24; --bad:#f87171;
  --rev:#fb923c;
  --glow-accent:0 0 12px rgba(125,155,255,.35), 0 0 32px rgba(125,155,255,.12);
  --glow-phys:0 0 12px rgba(90,162,255,.35), 0 0 32px rgba(90,162,255,.10);
  --glow-chem:0 0 12px rgba(74,222,128,.35), 0 0 32px rgba(74,222,128,.10);
  --glow-math:0 0 12px rgba(192,132,252,.35), 0 0 32px rgba(192,132,252,.10);
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
::selection{background:rgba(125,155,255,.28)}
html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(1100px 480px at 85% -10%, rgba(125,155,255,.07), transparent 60%),
    radial-gradient(900px 420px at -10% 0%, rgba(167,139,250,.06), transparent 55%),
    var(--bg);
  color:var(--text);
  font:14px/1.55 "Segoe UI",system-ui,-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased;
  opacity:0;transform:translateY(6px);transition:opacity .22s ease,transform .22s ease;
  animation:bodyin .01s .6s forwards} /* safety: never leave the page invisible if JS fails */
@keyframes bodyin{to{opacity:1;transform:none}}
body.ready{opacity:1;transform:none}
body.leaving{opacity:0;transform:translateY(-4px);transition-duration:.15s}
a{color:var(--accent);text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px 80px}

/* slim scrollbars everywhere */
*{scrollbar-width:thin;scrollbar-color:#2a3247 transparent}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#232b3d;border-radius:8px;border:2px solid var(--bg)}
::-webkit-scrollbar-thumb:hover{background:#2f3a52}
::-webkit-scrollbar-track{background:transparent}

/* header */
header.top{position:sticky;top:0;z-index:20;background:rgba(10,12,18,.78);backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);border-bottom:1px solid var(--border)}
.topin{display:flex;align-items:center;gap:16px;padding:13px 20px;max-width:1180px;margin:0 auto;flex-wrap:wrap}
.logo{font-weight:700;font-size:15.5px;letter-spacing:.2px}
.logo em{font-style:normal;background:linear-gradient(120deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.countdown{margin-left:auto;text-align:right;line-height:1.15}
.countdown b{font-size:21px;font-weight:700;font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.countdown span{display:block;font-size:10.5px;color:var(--faint);letter-spacing:.4px;text-transform:uppercase}
nav{display:flex;gap:4px;max-width:1180px;margin:0 auto;padding:0 20px 12px;flex-wrap:wrap}
nav button{background:none;border:1px solid transparent;color:var(--muted);padding:6px 13px;border-radius:9px;cursor:pointer;font-size:13px;transition:color .15s,background .15s,border-color .15s}
nav button:hover{color:var(--text);background:rgba(148,163,184,.06)}
nav button.on{background:var(--panel2);border-color:var(--border2);color:var(--text)}

/* generic */
.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--r);padding:18px}
.grid{display:grid;gap:14px}
h2.sec{font-size:11.5px;font-weight:600;text-transform:uppercase;letter-spacing:1.2px;margin:30px 0 12px;color:var(--faint)}
h2.sec:first-child{margin-top:4px}
.muted{color:var(--muted)}
.hidden{display:none!important}
button.act{background:var(--accent);border:0;color:#0b0e14;font-weight:600;padding:8px 14px;border-radius:9px;cursor:pointer;transition:filter .15s,transform .1s}
button.act:hover{filter:brightness(1.12)}
button.act:active{transform:scale(.97)}
button.ghost{background:none;border:1px solid var(--border2);color:var(--muted);padding:6px 12px;border-radius:9px;cursor:pointer;font-size:12.5px;transition:color .15s,border-color .15s}
button.ghost:hover{color:var(--text);border-color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

/* ---------- progress system ---------- */
/* animated gradient bar with optional shimmer sweep */
.pbar{position:relative;height:6px;background:rgba(148,163,184,.10);border-radius:99px;overflow:hidden}
.pbar i{display:block;height:100%;border-radius:99px;position:relative;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  transition:width .8s cubic-bezier(.2,.8,.3,1);
  box-shadow:var(--glow-accent)}
.pbar i::after{content:"";position:absolute;inset:0;border-radius:99px;
  background:linear-gradient(90deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);
  background-size:200% 100%;animation:shimmer 2.8s ease-in-out infinite}
.pbar.phys i{background:linear-gradient(90deg,var(--phys),#8ab8ff);box-shadow:var(--glow-phys)}
.pbar.chem i{background:linear-gradient(90deg,var(--chem),#7ee8a8);box-shadow:var(--glow-chem)}
.pbar.math i{background:linear-gradient(90deg,var(--math),#d4a8fc);box-shadow:var(--glow-math)}
.pbar.ok i{background:linear-gradient(90deg,var(--ok),#5eead4);box-shadow:0 0 12px rgba(52,211,153,.3)}
.pbar.warn i{background:linear-gradient(90deg,var(--warn),#fcd34d)}
.pbar.bad i{background:linear-gradient(90deg,var(--bad),#fca5a5)}
.pbar.thick{height:10px}
.pbar.thin{height:4px}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
@media (prefers-reduced-motion:reduce){.pbar i::after{animation:none}.pring circle{transition:none}}

/* progress ring (SVG) */
.pring{position:relative;width:52px;height:52px;flex:none}
.pring svg{width:100%;height:100%;transform:rotate(-90deg)}
.pring .track{fill:none;stroke:rgba(148,163,184,.22);stroke-width:5}
.pring .fill{fill:none;stroke:url(#pg-accent);stroke-width:5;stroke-linecap:round;
  transition:stroke-dashoffset 1s cubic-bezier(.2,.8,.3,1)}
.pring .txt{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--muted)}
.pring[data-p="0"] .txt{color:var(--faint);font-weight:500}
.pring.warn .fill{stroke:var(--warn)}
.pring.warn .txt{color:var(--warn)}
.pring.rev .fill{stroke:var(--rev)}
.pring.rev .txt{color:var(--rev)}
.pring.sm{width:40px;height:40px}.pring.sm .txt{font-size:10px}
.pring.lg{width:72px;height:72px}.pring.lg .txt{font-size:15px}

/* overview cards — deliberate 4x2 grid (no orphan wrap), 2 cols on small screens */
.cards{grid-template-columns:repeat(4,1fr);margin-top:20px}
@media(max-width:900px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:420px){.cards{grid-template-columns:1fr}}
.card{background:linear-gradient(180deg,rgba(148,163,184,.035),transparent 45%),var(--panel);
  border:1px solid var(--border);border-radius:var(--r);padding:16px;
  transition:border-color .18s,transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,0,0,.35)}
.card .num{font-size:27px;font-weight:700;letter-spacing:-.5px;font-variant-numeric:tabular-nums}
.card .lbl{font-size:11px;color:var(--faint);margin-top:2px;text-transform:uppercase;letter-spacing:.7px}
.card .bar{height:4px;background:rgba(148,163,184,.10);border-radius:3px;margin-top:12px;overflow:hidden}
.card .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:3px;transition:width .6s ease}
.card.warn .bar i{background:linear-gradient(90deg,var(--warn),#fcd34d)}
.card.rev .bar i{background:linear-gradient(90deg,var(--rev),#fdba74)}

/* hover detail tooltips on overview cards */
.card.hastip{position:relative}
.card.hastip:hover{border-color:var(--border2);z-index:70}
.card .tip{position:absolute;left:50%;top:100%;width:min(320px,86vw);z-index:60;
  padding-top:12px; /* bridges the card→tooltip gap so hover is continuous */
  opacity:0;visibility:hidden;pointer-events:none;
  transform:translate(-50%,-6px) scale(.97);
  transition:opacity .18s ease,transform .22s cubic-bezier(.2,.8,.3,1.15),visibility .18s}
/* edge cards: pin tooltip inward so it never clips off-screen (4-col grid) */
.cards>.card.hastip:nth-child(4n+1) .tip{left:0;transform:translate(0,-6px) scale(.97)}
.cards>.card.hastip:nth-child(4n+1):hover .tip,.cards>.card.hastip:nth-child(4n+1):focus-within .tip{transform:translate(0,0) scale(1)}
.cards>.card.hastip:nth-child(4n+1) .tip::after{left:40px;transform:none}
.cards>.card.hastip:nth-child(4n) .tip{left:auto;right:0;transform:translate(0,-6px) scale(.97)}
.cards>.card.hastip:nth-child(4n):hover .tip,.cards>.card.hastip:nth-child(4n):focus-within .tip{transform:translate(0,0) scale(1)}
.cards>.card.hastip:nth-child(4n) .tip::after{left:auto;right:40px;transform:none}
.card .tip::after{content:"";position:absolute;top:5px;left:50%;transform:translateX(-50%);
  border:7px solid transparent;border-bottom-color:var(--border2)}
.card .tipin{background:rgba(22,27,40,.97);border:1px solid var(--border2);border-radius:12px;padding:10px 12px;
  box-shadow:0 16px 40px rgba(0,0,0,.6);max-height:260px;overflow-y:auto;
  font-size:12px;text-align:left}
.card.hastip:hover .tip,.card.hastip:focus-within .tip{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0) scale(1)}
.tip .tiphead{font-weight:600;margin-bottom:6px;color:var(--text)}
.tip .ti{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:3px 0}
.tip .ti .st{color:var(--muted);font-size:11px;white-space:nowrap}
.tip .spark{height:56px;margin-top:2px}

/* next-up list */
.nextup .row{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid var(--border);border-radius:11px;margin-bottom:8px;background:var(--panel);transition:border-color .15s,background .15s,transform .15s}
.nextup .row:hover{border-color:var(--border2);background:var(--panel2);transform:translateX(3px)}
.nextup .row.overdue{border-color:rgba(248,113,113,.35)}
.chip{font-size:11px;padding:2px 9px;border-radius:99px;white-space:nowrap;border:1px solid transparent}
.chip.Physics{background:rgba(90,162,255,.12);color:var(--phys);border-color:rgba(90,162,255,.22)}
.chip.Chemistry{background:rgba(74,222,128,.12);color:var(--chem);border-color:rgba(74,222,128,.22)}
.chip.Maths{background:rgba(192,132,252,.12);color:var(--math);border-color:rgba(192,132,252,.22)}
.chip.High{background:rgba(248,113,113,.12);color:var(--high);border-color:rgba(248,113,113,.22)}
.chip.Medium{background:rgba(251,191,36,.12);color:var(--med);border-color:rgba(251,191,36,.22)}
.chip.Low{background:rgba(100,116,139,.15);color:#94a3b8;border-color:rgba(100,116,139,.25)}
.dleft{margin-left:auto;font-size:12px;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.dleft.over{color:var(--bad);font-weight:600}

/* controls bar */
.controls{display:flex;gap:10px;align-items:center;margin:18px 0 14px;flex-wrap:wrap}
.controls input[type=search]{background:var(--panel);border:1px solid var(--border);color:var(--text);padding:8px 12px;border-radius:9px;width:220px;outline:none;transition:border-color .15s}
.controls input[type=search]:focus{border-color:var(--accent)}
.controls input[type=search]::placeholder{color:var(--faint)}
.controls select{background:var(--panel);border:1px solid var(--border);color:var(--text);padding:8px 10px;border-radius:9px;cursor:pointer}
.controls .seg{display:flex;border:1px solid var(--border);border-radius:9px;overflow:hidden}
.controls .seg button{background:none;border:0;color:var(--muted);padding:8px 12px;cursor:pointer;font-size:12px;transition:background .15s,color .15s}
.controls .seg button:hover{color:var(--text)}
.controls .seg button.on{background:var(--panel2);color:var(--text)}

/* chapter table */
table.chapters{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--border);border-radius:var(--r);overflow:hidden}
table.chapters th{font-size:10.5px;text-transform:uppercase;letter-spacing:.8px;color:var(--faint);text-align:left;padding:11px 12px;border-bottom:1px solid var(--border2);cursor:pointer;user-select:none;white-space:nowrap;transition:color .15s}
table.chapters th:hover{color:var(--text)}
table.chapters td{padding:9px 12px;border-bottom:1px solid var(--border);font-size:13px;vertical-align:middle}
table.chapters tbody tr{transition:background .12s}
table.chapters tbody tr:hover{background:rgba(148,163,184,.045)}
table.chapters tr:last-child td{border-bottom:0}
table.chapters tr.done td .chname{color:var(--faint);text-decoration:line-through}
.chname{font-weight:500}
select.status{background:var(--panel2);border:1px solid var(--border);color:var(--text);padding:4px 8px;border-radius:7px;font-size:12px;cursor:pointer}
select.status.s0{color:#94a3b8} select.status.s1{color:var(--warn)}
select.status.s2{color:var(--phys)} select.status.s3{color:var(--chem)} select.status.s4{color:var(--ok)} select.status.s5{color:var(--math)} select.status.s6{color:var(--bad)}
input.qnum{width:60px;background:var(--panel2);border:1px solid var(--border);color:var(--text);padding:4px 6px;border-radius:7px;font-size:12px;transition:border-color .15s}
input.qnum:focus{border-color:var(--accent);outline:none}
.prio{font-variant-numeric:tabular-nums;color:var(--muted);font-size:12px}
.savestate{font-size:11px;color:var(--muted)}
.savestate.err{color:var(--bad)}

/* gantt */
.gantt{overflow-x:auto;padding-bottom:6px}
.grow{display:flex;align-items:center;gap:10px;margin-bottom:5px;min-width:760px}
.grow .gname{width:230px;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--muted)}
.gtrack{flex:1;position:relative;height:16px;background:var(--panel2);border-radius:8px}
.gbar{position:absolute;top:2px;bottom:2px;border-radius:6px;opacity:.85;min-width:3px}
.gbar.Physics{background:var(--phys)} .gbar.Chemistry{background:var(--chem)} .gbar.Maths{background:var(--math)}
.gbar.done{opacity:.32}
.gnow{position:absolute;top:-3px;bottom:-3px;width:2px;background:var(--high);z-index:2;box-shadow:0 0 8px rgba(248,113,113,.7)}
.ghead{display:flex;gap:10px;margin-bottom:8px;min-width:760px}
.ghead .gname{width:230px}
.ghead .gcal{flex:1;position:relative;height:14px;font-size:10px;color:var(--faint)}
.ghead .gcal span{position:absolute;transform:translateX(-50%)}

/* log / mocks forms */
form.addrow{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;align-items:end;margin-bottom:16px}
form.addrow label{font-size:11px;color:var(--muted);display:block;margin-bottom:4px}
form.addrow input,form.addrow select,form.addrow textarea{width:100%;background:var(--panel2);border:1px solid var(--border);color:var(--text);padding:8px 10px;border-radius:9px;font-size:13px;transition:border-color .15s}
form.addrow input:focus,form.addrow select:focus,form.addrow textarea:focus{border-color:var(--accent);outline:none}
form.addrow textarea{resize:vertical;min-height:38px}
table.simple{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;margin-top:8px}
table.simple th{font-size:10.5px;text-transform:uppercase;letter-spacing:.8px;color:var(--faint);text-align:left;padding:10px 12px;border-bottom:1px solid var(--border2)}
table.simple td{padding:8px 12px;border-bottom:1px solid var(--border);font-size:13px}
table.simple tbody tr{transition:background .12s}
table.simple tbody tr:hover{background:rgba(148,163,184,.045)}
table.simple tr:last-child td{border-bottom:0}
.spark{display:flex;gap:3px;align-items:flex-end;height:44px;margin-top:6px}
.spark i{flex:1;background:linear-gradient(180deg,var(--accent),rgba(125,155,255,.45));border-radius:2px 2px 0 0;min-height:2px;opacity:.85}
.scorebar{height:5px;background:var(--panel2);border-radius:3px;overflow:hidden;margin-top:6px}
.scorebar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--phys),var(--chem),var(--math))}

/* revision */
.conf{display:inline-flex;gap:3px}
.conf i{width:9px;height:9px;border-radius:2px;background:var(--panel2);border:1px solid var(--border)}
.conf i.f1{background:var(--bad)} .conf i.f2{background:var(--warn)} .conf i.f3{background:var(--phys)} .conf i.f4{background:var(--ok)}
.rev-due{border-left:3px solid var(--bad)}
.rev-soon{border-left:3px solid var(--warn)}

/* motivational quote */
.qline{flex:1;min-width:180px;text-align:center;font-size:12px;color:var(--muted);font-style:italic;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:4px 8px;border-radius:9px;transition:background .2s,color .2s}
.qline:hover{background:var(--panel2);color:var(--text)}
.qline span{color:var(--accent);font-style:normal;font-size:11px}
.qoverlay{position:fixed;inset:0;z-index:100;background:rgba(10,12,18,.96);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .3s;cursor:pointer}
.qoverlay.show{opacity:1;pointer-events:auto}
.qbig{max-width:720px;padding:40px;text-align:center}
.qbig .qt{font-size:clamp(24px,4.5vw,42px);font-weight:700;line-height:1.3;background:linear-gradient(90deg,#7d9bff,#a78bfa,#4ade80);-webkit-background-clip:text;background-clip:text;color:transparent}
.qbig .qa{margin-top:18px;color:var(--muted);font-size:15px}
.qbig .qhint{margin-top:40px;color:#3a4356;font-size:11px;letter-spacing:1px;text-transform:uppercase}

.toast{position:fixed;bottom:20px;right:20px;background:rgba(22,27,40,.97);border:1px solid var(--border2);padding:10px 16px;border-radius:11px;font-size:13px;opacity:0;transform:translateY(8px);transition:opacity .25s,transform .25s;z-index:50;box-shadow:0 10px 30px rgba(0,0,0,.45)}
.toast.show{opacity:1;transform:none}
.toast.err{border-color:var(--bad);color:var(--bad)}
footer{margin-top:44px;text-align:center;color:var(--faint);font-size:11.5px;letter-spacing:.2px}
@media(max-width:640px){.grow .gname,.ghead .gname{width:130px}}