:root{
  --bg:#eef0f4; --surface:#ffffff; --surface-2:#f6f7f9;
  --ink:#171a21; --muted:#5c6472; --faint:#8a92a1;
  --line:#e0e3ea; --line-strong:#cfd4de;
  --accent:#4338ca; --accent-soft:#ecebfb;
  --ok:#0f766e; --ok-soft:#e2f2ef;
  --warn:#b45309; --warn-soft:#fbeede;
  --err:#b91c1c;
  --easy:#0f766e; --med:#b45309; --hard:#b91c1c;
  --shadow:0 1px 2px rgba(20,25,40,.05),0 6px 18px rgba(20,25,40,.06);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0e1017; --surface:#161a24; --surface-2:#1b202c;
    --ink:#e9ebf1; --muted:#a2abbb; --faint:#727c8e;
    --line:#262c39; --line-strong:#323a4a;
    --accent:#a5b4fc; --accent-soft:#232445;
    --ok:#5eead4; --ok-soft:#0f2a28;
    --warn:#fbbf24; --warn-soft:#2e2410;
    --err:#fca5a5;
    --easy:#5eead4; --med:#fbbf24; --hard:#fca5a5;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0e1017; --surface:#161a24; --surface-2:#1b202c;
  --ink:#e9ebf1; --muted:#a2abbb; --faint:#727c8e;
  --line:#262c39; --line-strong:#323a4a;
  --accent:#a5b4fc; --accent-soft:#232445;
  --ok:#5eead4; --ok-soft:#0f2a28;
  --warn:#fbbf24; --warn-soft:#2e2410;
  --err:#fca5a5;
  --easy:#5eead4; --med:#fbbf24; --hard:#fca5a5;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);
  color-scheme:dark;
}

*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{margin:0}
body{
  background:var(--bg); color:var(--ink);
  font-family:"IBM Plex Sans","Segoe UI",system-ui,sans-serif; line-height:1.5;
  -webkit-font-smoothing:antialiased;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
a{color:var(--accent)}
code{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:.86em;background:var(--surface-2);padding:1px 5px;border-radius:5px;border:1px solid var(--line)}

.wrap{max-width:1000px;margin:0 auto;padding-inline:16px}

/* header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.head-inner{max-width:1000px;margin:0 auto;padding:12px 16px}
.brandrow{display:flex;gap:12px;justify-content:space-between;align-items:flex-start;flex-wrap:wrap}
.brand h1{font-family:"Archivo",sans-serif;font-weight:800;font-size:clamp(1.2rem,3vw,1.7rem);letter-spacing:-.02em;margin:0}
.brand .sub{color:var(--muted);font-size:.82rem;margin:2px 0 0}
.tools{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.tbtn{border:1px solid var(--line-strong);background:var(--surface);color:var(--muted);border-radius:9px;padding:7px 11px;font-size:.78rem;cursor:pointer;font-family:inherit;font-weight:600;white-space:nowrap}
.tbtn:hover{color:var(--ink)}
.tbtn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
:root[data-theme="dark"] .tbtn.primary,@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .tbtn.primary{color:#0e1017}}
.tbtn.primary:hover{filter:brightness(1.05)}

.sync{font-size:.74rem;font-weight:600;padding:5px 10px;border-radius:999px;border:1px solid var(--line);white-space:nowrap}
.sync.ok{color:var(--ok);background:var(--ok-soft);border-color:transparent}
.sync.warn{color:var(--warn);background:var(--warn-soft);border-color:transparent}
.sync.busy{color:var(--accent);background:var(--accent-soft);border-color:transparent}
.sync.err{color:var(--err);background:var(--warn-soft);border-color:transparent}

.banner{margin-top:10px;background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);border-radius:10px;padding:9px 13px;font-size:.82rem;display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.linkbtn{border:none;background:transparent;color:var(--accent);font-weight:700;cursor:pointer;font-family:inherit;font-size:.82rem;white-space:nowrap}

/* stats */
.stats{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.stat{display:flex;align-items:baseline;gap:5px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:7px 12px;box-shadow:var(--shadow)}
.stat .num{font-family:"Archivo",sans-serif;font-weight:800;font-size:1.1rem;font-variant-numeric:tabular-nums}
.stat .den{color:var(--faint);font-size:.76rem;font-variant-numeric:tabular-nums}
.stat .lbl{color:var(--muted);font-size:.76rem;margin-left:3px}
.stat.warn .num{color:var(--warn)}

/* controls */
.controls{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap;align-items:center}
.search{position:relative;flex:1 1 240px;min-width:0}
.search input{width:100%;padding:10px 12px 10px 36px;font-size:.92rem;font-family:inherit;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface);color:var(--ink)}
.search input:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
.search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--faint);fill:none}
.filters{display:flex;gap:5px;flex-wrap:wrap}
.fbtn{border:1px solid var(--line-strong);background:var(--surface);color:var(--muted);padding:8px 12px;border-radius:999px;font-size:.78rem;cursor:pointer;font-family:inherit;font-weight:600}
.fbtn[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}

/* plan */
main{padding-block:20px 60px}
.phase{margin-bottom:24px}
.phase-head{display:flex;align-items:baseline;gap:10px;margin:0 2px 11px;flex-wrap:wrap}
.phase-idx{font-family:"JetBrains Mono",monospace;font-size:.72rem;font-weight:600;color:var(--faint)}
.phase-name{font-family:"Archivo",sans-serif;font-weight:700;font-size:1.05rem;letter-spacing:-.01em;margin:0}
.days{display:flex;flex-direction:column;gap:10px}

.day{background:var(--surface);border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);padding:13px 15px}
.day-done{background:var(--surface-2)}
.day-head{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.daycheck{flex:none;width:22px;height:22px;border:2px solid var(--line-strong);border-radius:6px;display:grid;place-items:center;cursor:pointer;background:transparent;padding:0}
.daycheck svg{width:13px;height:13px;stroke:var(--surface);stroke-width:3.5;fill:none;opacity:0}
.daycheck.on{background:var(--ok);border-color:var(--ok)}
.daycheck.on svg{opacity:1}
.daynum{font-family:"Archivo",sans-serif;font-weight:800;font-size:.78rem;color:var(--faint);font-variant-numeric:tabular-nums}
.chip{font-size:.6rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:2px 7px;border-radius:5px}
.chip.new{background:var(--accent-soft);color:var(--accent)}
.chip.rev{background:var(--ok-soft);color:var(--ok)}
.chip.mock{background:var(--warn-soft);color:var(--warn)}
.chip.cap{background:var(--ink);color:var(--bg)}
.chip.buf{background:var(--surface-2);color:var(--faint);border:1px solid var(--line)}
.pattern{font-family:"Archivo",sans-serif;font-weight:700;font-size:1rem;letter-spacing:-.01em}
.focus{color:var(--muted);font-size:.83rem;margin:8px 0 0}
.daynote{color:var(--faint);font-size:.76rem;font-style:italic;margin:6px 0 0}

.problems{display:flex;flex-direction:column;gap:8px;margin-top:11px}
.prob{border:1px solid var(--line);border-radius:10px;background:var(--surface-2);overflow:hidden}
.prob.status-solved{border-color:color-mix(in srgb,var(--ok) 45%,var(--line))}
.prob.status-review{border-color:color-mix(in srgb,var(--warn) 45%,var(--line))}
.prob-head{display:flex;align-items:center;gap:10px;padding:9px 11px;flex-wrap:wrap}
.prob-title{display:flex;align-items:center;gap:8px;flex:1 1 200px;min-width:0}
.prob-title a{font-weight:600;font-size:.9rem;text-decoration:none;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.prob-title a:hover{color:var(--accent);text-decoration:underline}
.diff{font-family:"JetBrains Mono",monospace;font-size:.66rem;font-weight:600;padding:1px 6px;border-radius:5px;border:1px solid var(--line)}
.diff-E{color:var(--easy)} .diff-M{color:var(--med)} .diff-H{color:var(--hard)}

.statusseg{display:inline-flex;border:1px solid var(--line-strong);border-radius:8px;overflow:hidden}
.seg{border:none;background:var(--surface);color:var(--muted);font-family:inherit;font-size:.72rem;font-weight:600;padding:5px 9px;cursor:pointer;border-right:1px solid var(--line)}
.seg:last-child{border-right:none}
.seg.on.todo{background:var(--faint);color:#fff}
.seg.on.solved{background:var(--ok);color:#04241f}
.seg.on.review{background:var(--warn);color:#2a1a04}

.prob-toggle{border:none;background:transparent;color:var(--accent);font-family:inherit;font-size:.76rem;font-weight:600;cursor:pointer;white-space:nowrap;padding:5px 4px}
.prob-body{border-top:1px solid var(--line);padding:11px;display:flex;flex-direction:column;gap:12px;background:var(--surface)}

.mini-label{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--faint);margin-bottom:5px}
.links .linkrow{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-bottom:5px}
.lnk{font-size:.74rem;text-decoration:none;color:var(--accent);background:var(--accent-soft);border:1px solid transparent;border-radius:6px;padding:3px 9px;font-weight:600}
.lnk:hover{filter:brightness(1.03)}
.lnk.user{background:var(--surface-2);color:var(--muted);border-color:var(--line)}
.lnkwrap{display:inline-flex;align-items:center;gap:2px}
.lnkx{border:none;background:transparent;color:var(--faint);cursor:pointer;font-size:1rem;line-height:1;padding:0 2px}
.lnkadd{border:1px dashed var(--line-strong);background:transparent;color:var(--muted);border-radius:6px;font-size:.74rem;padding:3px 9px;cursor:pointer;font-family:inherit;font-weight:600}

.notes{width:100%;min-height:52px;resize:vertical;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface-2);color:var(--ink);font-family:inherit;font-size:.86rem;padding:9px 11px;line-height:1.55}
.notes:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}

.dropzone{border:1.5px dashed var(--line-strong);border-radius:8px;padding:12px;text-align:center;color:var(--muted);font-size:.8rem;background:var(--surface-2);cursor:text}
.dropzone.hover{border-color:var(--accent);background:var(--accent-soft)}
.dropzone.busy{opacity:.7}
.dropzone.busy::after{content:attr(data-msg);color:var(--accent);font-weight:600}
.filebtn{color:var(--accent);font-weight:600;cursor:pointer;text-decoration:underline}
.thumbs{display:flex;gap:8px;flex-wrap:wrap;margin-top:9px}
.thumb{position:relative;width:96px;height:96px;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface-2)}
.thumb img{width:100%;height:100%;object-fit:cover;cursor:zoom-in}
.thumbx{position:absolute;top:3px;right:3px;width:20px;height:20px;border:none;border-radius:50%;background:rgba(0,0,0,.6);color:#fff;cursor:pointer;font-size:.9rem;line-height:1}

.foot{color:var(--faint);font-size:.76rem;text-align:center;padding:10px 0 40px;line-height:1.8}

/* settings dialog */
.settings{border:none;border-radius:16px;padding:0;max-width:460px;width:calc(100% - 32px);background:var(--surface);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.35)}
.settings::backdrop{background:rgba(10,12,20,.5)}
.settings form{padding:20px}
.dlg-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}
.dlg-head h2{font-family:"Archivo",sans-serif;font-size:1.15rem;margin:0}
.x{border:none;background:transparent;font-size:1.5rem;line-height:1;color:var(--faint);cursor:pointer}
.dlg-lead{color:var(--muted);font-size:.83rem;margin:0 0 14px}
.field{display:block;margin-bottom:11px}
.field span{display:block;font-size:.74rem;font-weight:600;color:var(--muted);margin-bottom:4px}
.field input{width:100%;padding:9px 11px;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface-2);color:var(--ink);font-family:inherit;font-size:.88rem}
.field input:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
.help{margin:6px 0 4px;font-size:.8rem;color:var(--muted)}
.help summary{cursor:pointer;font-weight:600;color:var(--accent)}
.help ol{margin:8px 0;padding-left:18px;line-height:1.7}
.warn-note{background:var(--warn-soft);color:var(--warn);border-radius:8px;padding:8px 11px;font-size:.76rem;line-height:1.5}
.dlg-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}

@media (max-width:520px){
  .brand h1{font-size:1.15rem}
  .statusseg{order:3}
  .prob-title{flex-basis:100%}
}

/* concept notes + solution editor */
.concept{margin-top:8px}
.concept-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.concept-bar .prob-toggle{padding-left:0}
.concept-body{border:1px solid var(--line);border-radius:10px;margin-top:6px}
.lnk.repo{background:var(--surface-2);color:var(--ink);border-color:var(--line)}
.solhead{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:5px}
.solhead .mini-label{margin-bottom:0}
.langsel{border:1px solid var(--line-strong);border-radius:6px;background:var(--surface-2);color:var(--ink);font-family:inherit;font-size:.74rem;padding:3px 6px}
.notes.code{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:.8rem;line-height:1.5;tab-size:4;white-space:pre;overflow-x:auto;min-height:90px}
.notes.code:disabled{opacity:.6}
.dlg-actions{flex-wrap:wrap}

/* markdown editor + live preview */
.mdhead{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:5px}
.mdhead .mini-label{margin-bottom:0;margin-right:auto}
.mdseg{display:inline-flex;border:1px solid var(--line-strong);border-radius:7px;overflow:hidden}
.mdseg button{border:none;border-right:1px solid var(--line);background:var(--surface);color:var(--muted);font-family:inherit;font-size:.7rem;font-weight:600;padding:3px 9px;cursor:pointer}
.mdseg button:last-child{border-right:none}
.mdseg button[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent)}
.mdimg{font-size:.72rem;font-weight:600;color:var(--accent);cursor:pointer;white-space:nowrap}
.mdimg.off{opacity:.4;pointer-events:none}
.mdpanes{display:grid;gap:8px}
.mdpanes.mode-write .mdpreview,.mdpanes.mode-preview .mdsrc{display:none}
@media (min-width:760px){.mdpanes.mode-split{grid-template-columns:1fr 1fr}}
.mdsrc{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:.8rem;min-height:120px}
.mdsrc.hover{outline:2px dashed var(--accent);outline-offset:1px}
.mdpreview{min-height:60px;border:1px solid var(--line);border-radius:8px;padding:9px 13px;background:var(--surface);font-size:.88rem;line-height:1.6;overflow-wrap:anywhere;min-width:0}
.mdpanes.mode-split .mdpreview{max-height:700px;overflow:auto}
.mdpreview.plain{white-space:pre-wrap;font-family:"JetBrains Mono",monospace;font-size:.8rem}
.mdpreview>:first-child{margin-top:0}.mdpreview>:last-child{margin-bottom:0}
.mdpreview h1,.mdpreview h2,.mdpreview h3,.mdpreview h4{font-family:"Archivo",sans-serif;letter-spacing:-.01em;line-height:1.25;margin:1em 0 .4em}
.mdpreview h1{font-size:1.25rem}.mdpreview h2{font-size:1.1rem}.mdpreview h3{font-size:1rem}.mdpreview h4{font-size:.92rem}
.mdpreview p,.mdpreview ul,.mdpreview ol,.mdpreview pre,.mdpreview blockquote,.mdpreview table{margin:0 0 .7em}
.mdpreview ul,.mdpreview ol{padding-left:1.4em}
.mdpreview li:has(>input[type="checkbox"]){list-style:none;margin-left:-1.3em}
.mdpreview input[type="checkbox"]{margin:0 .45em 0 0;vertical-align:-1px;accent-color:var(--ok);cursor:pointer}
.mdpreview img{max-width:100%;border-radius:8px;border:1px solid var(--line);cursor:zoom-in;display:block;margin:.3em 0}
.mdpreview pre{background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:10px 12px;overflow:auto;font-size:.8rem;line-height:1.5}
.mdpreview pre code{background:none;border:none;padding:0;font-size:inherit}
.mdpreview blockquote{border-left:3px solid var(--line-strong);margin-left:0;padding:.1em 0 .1em .9em;color:var(--muted)}
.mdpreview table{border-collapse:collapse;display:block;overflow:auto}
.mdpreview th,.mdpreview td{border:1px solid var(--line);padding:4px 9px;text-align:left}
.mdpreview hr{border:none;border-top:1px solid var(--line);margin:1em 0}
.mdempty{color:var(--faint);font-style:italic}
.mdstatus{font-size:.76rem;color:var(--muted);margin-top:5px}
/* highlight.js tokens, themed with the app palette */
.hljs-keyword,.hljs-selector-tag,.hljs-literal{color:var(--accent);font-weight:600}
.hljs-string,.hljs-regexp,.hljs-addition{color:var(--ok)}
.hljs-number,.hljs-built_in,.hljs-type,.hljs-meta{color:var(--warn)}
.hljs-comment,.hljs-quote{color:var(--faint);font-style:italic}
.hljs-title,.hljs-function .hljs-title,.hljs-section{color:var(--ink);font-weight:600}

/* day navigation */
.daynav{display:flex;align-items:center;gap:5px;flex:1 1 100%;min-width:0}
.daynav select{flex:1 1 auto;min-width:0;max-width:520px;padding:9px 10px;font-family:inherit;font-size:.88rem;font-weight:600;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface);color:var(--ink);cursor:pointer}
.daynav select:focus{outline:2px solid var(--accent);outline-offset:1px}
.navbtn{flex:none;width:38px;height:38px;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface);color:var(--ink);font-size:1.3rem;line-height:1;cursor:pointer}
.navbtn:disabled{opacity:.35;cursor:default}
.runpill{flex:none;border:none;border-radius:999px;padding:7px 12px;background:var(--warn-soft);color:var(--warn);font-family:"JetBrains Mono",monospace;font-size:.76rem;font-weight:600;cursor:pointer;font-variant-numeric:tabular-nums;white-space:nowrap}
.results-info{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:.84rem;margin:0 2px 14px}
.open-day{margin-left:auto}
.pager{display:flex;justify-content:space-between;gap:10px;margin-top:4px}
.pager .tbtn{max-width:48%;overflow:hidden;text-overflow:ellipsis}

/* time log */
.timelog{margin-top:12px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);padding:10px 12px;display:flex;flex-direction:column;gap:9px}
.tl-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.tl-total{display:flex;align-items:baseline;gap:9px;flex-wrap:wrap;min-width:0}
.tl-mins{font-family:"Archivo",sans-serif;font-weight:800;font-size:1.25rem;font-variant-numeric:tabular-nums}
.tl-meta{color:var(--muted);font-size:.8rem}
.tl-live{font-family:"JetBrains Mono",monospace;font-size:.8rem;font-weight:600;color:var(--warn);font-variant-numeric:tabular-nums}
.tl-timer.running{background:var(--warn-soft);color:var(--warn);border-color:transparent}
.tl-quick{display:flex;align-items:center;gap:5px;flex-wrap:wrap}
.tl-quick .mini-label{margin:0 4px 0 0}
.chipbtn{border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);border-radius:999px;padding:4px 10px;font-family:inherit;font-size:.74rem;font-weight:600;cursor:pointer;font-variant-numeric:tabular-nums}
.chipbtn:hover{border-color:var(--accent);color:var(--accent)}
.chipbtn.ghost{border-style:dashed;color:var(--muted)}
.tl-list{display:flex;flex-direction:column;gap:5px}
.tl-list:empty{display:none}
.tl-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:5px 7px}
.tl-row input{border:1px solid var(--line-strong);border-radius:6px;background:var(--surface-2);color:var(--ink);font-family:"JetBrains Mono",monospace;font-size:.78rem;padding:4px 6px;min-width:0}
.tl-row input:disabled{opacity:.55}
.tl-arrow{color:var(--faint)}
.tl-dur{font-size:.78rem;font-weight:600;color:var(--muted);margin-left:auto;font-variant-numeric:tabular-nums;white-space:nowrap}
.tl-row.bad{border-color:var(--err)}
.tl-row.bad .tl-dur{color:var(--err)}
@media (max-width:520px){
  .tl-row input{flex:1 1 150px}
  .tl-arrow{display:none}
}

/* ===================== v2: navigation, views, components ===================== */
.global-bar{margin-top:6px;max-width:420px}
.nav{display:flex;gap:4px;margin-top:10px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.nav::-webkit-scrollbar{display:none}
.nav a{flex:none;text-decoration:none;color:var(--muted);font-weight:600;font-size:.84rem;padding:7px 12px;border-radius:9px;border:1px solid transparent;display:inline-flex;align-items:center;gap:6px}
.nav a:hover{color:var(--ink);background:var(--surface)}
.nav a[aria-current="page"]{color:var(--ink);background:var(--surface);border-color:var(--line-strong);box-shadow:var(--shadow)}
.nav-badge{background:var(--warn);color:#fff;border-radius:999px;font-size:.66rem;padding:1px 6px;font-variant-numeric:tabular-nums}
:root[data-theme="dark"] .nav-badge{color:#1b1204}
.banner.warnb{background:var(--warn-soft);border-color:color-mix(in srgb,var(--warn) 35%,transparent)}
.loading,.empty{color:var(--muted);text-align:center;padding:40px 10px}
.empty .tbtn{display:inline-block;margin-top:10px;text-decoration:none}

/* progress bar */
.pbar{display:flex;align-items:center;gap:8px;min-width:0;flex:1 1 160px}
.pbar-track{flex:1 1 auto;height:8px;border-radius:999px;background:var(--line);overflow:hidden;min-width:60px}
.pbar-fill{height:100%;border-radius:999px;background:var(--ok);transition:width .3s}
.pbar-label{font-size:.72rem;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}

/* chips & badges */
.chip.concept,.chip.rev,.chip.ok,.chip.warn,.chip.muted{text-transform:none;letter-spacing:0;font-size:.74rem;font-weight:600;padding:3px 9px;border-radius:999px;text-decoration:none;display:inline-flex;align-items:center;gap:4px}
.chip.concept{background:var(--accent-soft);color:var(--accent)}
.chip.concept a{color:inherit;text-decoration:none}
.chip.rev,.chip.ok{background:var(--ok-soft);color:var(--ok)}
.chip.warn{background:var(--warn-soft);color:var(--warn)}
.chip.muted{background:var(--surface-2);color:var(--muted);border:1px solid var(--line)}
.chip.custom{background:var(--surface-2);color:var(--muted);border:1px dashed var(--line-strong)}
.vbadge{font-size:.68rem;font-weight:600;padding:1px 7px;border-radius:999px;white-space:nowrap;cursor:help}
.vbadge.ok{background:var(--ok-soft);color:var(--ok)}
.vbadge.warn{background:var(--warn-soft);color:var(--warn)}
.vbadge.muted{background:var(--surface-2);color:var(--faint);border:1px solid var(--line)}
.planned{font-size:.76rem;color:var(--muted);white-space:nowrap}
.ptitle{font-weight:600;font-size:.9rem}
.edit-day{margin-left:auto;text-decoration:none;font-size:.78rem}

/* day extras */
.day-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:10px}
.day-meta .pbar{max-width:320px}
.day-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.prob-meta{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.vreason{font-size:.78rem;color:var(--muted);flex:1 1 100%;line-height:1.45}
.prob-actions{display:flex;gap:6px;flex-wrap:wrap}
.tbtn.ghost{background:transparent}
.tbtn.danger{background:var(--err);border-color:var(--err);color:#fff}
.danger-text{color:var(--err)!important}
.spacer{flex:1 1 auto}

/* views */
.view-head{display:flex;justify-content:space-between;align-items:flex-end;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.view-title{font-family:"Archivo",sans-serif;font-weight:800;font-size:1.35rem;letter-spacing:-.02em;margin:0}
.view-sub{color:var(--muted);font-size:.84rem;margin:4px 0 0;max-width:640px}
.view-tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.view-search{padding:9px 12px;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface);color:var(--ink);font-family:inherit;font-size:.88rem;min-width:0;width:220px;max-width:100%}
.inline-field{display:inline-flex;align-items:center;gap:6px;font-size:.76rem;font-weight:600;color:var(--muted)}
.inline-field input,.sel,.vrow input,.rev-dt input,.pd-date{border:1px solid var(--line-strong);border-radius:8px;background:var(--surface);color:var(--ink);font-family:inherit;font-size:.84rem;padding:6px 8px;min-width:0}
.sel.sm,.pd-date{font-size:.76rem;padding:4px 6px}
.section{background:var(--surface);border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);padding:13px 15px;margin-bottom:14px}
.section.warn{border-color:color-mix(in srgb,var(--warn) 45%,var(--line))}
.section.ok{border-color:color-mix(in srgb,var(--ok) 45%,var(--line))}
.section-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.section-head h3{font-family:"Archivo",sans-serif;font-size:1rem;margin:0}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.row3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
@media (max-width:620px){.row2,.row3{grid-template-columns:1fr}}
.field select,.field textarea{width:100%;padding:9px 11px;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface-2);color:var(--ink);font-family:inherit;font-size:.88rem}
.hint{display:block;font-size:.74rem;color:var(--faint);margin-top:3px}
.hint.bad{color:var(--err)}
.check{display:flex;align-items:center;gap:6px;font-size:.84rem;margin:8px 0}
.vrow{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:8px 0}
.locked-note{background:var(--surface-2);border:1px dashed var(--line-strong);border-radius:8px;padding:8px 11px;font-size:.8rem;color:var(--muted)}
.settings-card input:disabled,.settings-card select:disabled{opacity:.55}
.gw-table{border-collapse:collapse;font-size:.8rem;margin:6px 0}
.gw-table th,.gw-table td{border:1px solid var(--line);padding:4px 9px;text-align:left}

/* modal */
dialog.modal{max-width:560px}
dialog.modal.wide{max-width:760px}
.modal-inner{padding:20px;max-height:calc(100vh - 60px);overflow:auto}
.modal .tabs{margin-bottom:12px}
.modal .tabs button{padding:6px 12px;font-size:.8rem}
.vresult{border-radius:10px;padding:10px 12px;font-size:.84rem;line-height:1.5;margin-top:6px}
.vresult.ok{background:var(--ok-soft);color:var(--ink)}
.vresult.warn{background:var(--warn-soft);color:var(--ink)}
.vresult.muted{background:var(--surface-2);border:1px solid var(--line)}
.vresult b{margin-right:4px}
.vacts{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.gwstatus.bad{color:var(--warn)}

/* toasts */
.toasts{position:fixed;right:16px;bottom:16px;left:16px;display:flex;flex-direction:column;align-items:flex-end;gap:8px;z-index:100;pointer-events:none}
.toast{pointer-events:auto;display:flex;align-items:flex-start;gap:10px;max-width:440px;background:var(--ink);color:var(--bg);border-radius:10px;padding:10px 12px;font-size:.84rem;box-shadow:0 10px 30px rgba(0,0,0,.25);line-height:1.45}
.toast.ok{background:var(--ok);color:#fff}
.toast.warn{background:var(--warn);color:#fff}
.toast.err{background:var(--err);color:#fff}
:root[data-theme="dark"] .toast.ok,:root[data-theme="dark"] .toast.warn,:root[data-theme="dark"] .toast.err{color:#0e1017}
.toast .x{color:inherit;font-size:1.1rem;opacity:.8;padding:0}

/* concepts */
.concept-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}
.ccard{display:flex;flex-direction:column;gap:7px;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 13px;box-shadow:var(--shadow)}
.ccard:hover{border-color:var(--accent)}
.ccard .focus{margin:0}
.ccard-head{display:flex;align-items:center;gap:6px;justify-content:space-between}
.ccard-meta{display:flex;gap:6px;flex-wrap:wrap;align-items:center;font-size:.74rem;color:var(--muted)}
.concept-page{display:flex;flex-direction:column;gap:10px;margin-bottom:14px}
.back{text-decoration:none;font-size:.8rem;align-self:flex-start}
.concept-name{font-family:"Archivo",sans-serif;font-weight:800;font-size:1.5rem;letter-spacing:-.02em;border:1px solid transparent;background:transparent;color:var(--ink);border-radius:8px;padding:2px 6px;margin-left:-6px;width:100%}
.concept-name:hover,.concept-name:focus{border-color:var(--line-strong);background:var(--surface)}
.cp-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
@media (max-width:760px){.cp-fields{grid-template-columns:1fr}}
.cp-prob{display:flex;flex-direction:column;gap:4px}
.cp-prob-acts{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.cp-prob-acts:empty{display:none}
.danger-zone{border-color:color-mix(in srgb,var(--err) 30%,var(--line))}
.concept-page ~ .concept{margin-bottom:14px}

/* plan editor */
.plan-phase{margin-bottom:20px}
.plan-phase .phase-head{align-items:center}
.phase-title-input{font-family:"Archivo",sans-serif;font-weight:700;font-size:1.02rem;border:1px solid transparent;background:transparent;color:var(--ink);border-radius:7px;padding:3px 6px;flex:1 1 220px;min-width:0}
.phase-title-input:hover,.phase-title-input:focus{border-color:var(--line-strong);background:var(--surface)}
.plan-days{display:flex;flex-direction:column;gap:8px}
.plan-day{display:flex;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:9px 11px;box-shadow:var(--shadow)}
.plan-day.done{background:var(--surface-2)}
.pd-order{display:flex;flex-direction:column;align-items:center;gap:3px}
.pd-num{font-family:"Archivo",sans-serif;font-weight:800;font-size:.84rem;color:var(--faint);font-variant-numeric:tabular-nums}
.navbtn.sm{width:28px;height:26px;font-size:.9rem;border-radius:7px}
.pd-main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:6px}
.pd-line{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.pd-title{flex:1 1 220px;min-width:0;font-weight:600;font-size:.9rem;border:1px solid var(--line);border-radius:7px;background:var(--surface-2);color:var(--ink);padding:5px 8px;font-family:inherit}
.pd-concepts{display:flex;gap:5px;flex-wrap:wrap;align-items:center}
.pd-info{font-size:.78rem;color:var(--muted)}
.pd-info a{color:var(--accent)}
.pd-details summary{font-size:.76rem;color:var(--muted);cursor:pointer}
.pd-detail-grid{display:grid;grid-template-columns:200px 1fr 1fr;gap:8px;margin-top:6px}
@media (max-width:760px){.pd-detail-grid{grid-template-columns:1fr}}
.notes.sm{min-height:36px;font-size:.8rem}

/* revisions */
.rev-list{display:flex;flex-direction:column;gap:6px}
.rev-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;border:1px solid var(--line);border-radius:10px;padding:8px 10px;background:var(--surface-2)}
.rev-row.overdue{border-color:color-mix(in srgb,var(--warn) 50%,var(--line))}
.rev-row.done{opacity:.8}
.rev-when{display:flex;flex-direction:column;min-width:78px;font-weight:700;font-size:.84rem;font-variant-numeric:tabular-nums}
.rev-when small{font-weight:500;color:var(--muted);font-size:.7rem}
.rev-main{flex:1 1 220px;min-width:0;display:flex;flex-direction:column;gap:3px}
.rev-what{display:flex;align-items:center;gap:6px;min-width:0}
.rev-what a{font-weight:600;color:var(--ink);text-decoration:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rev-what a:hover{color:var(--accent)}
.rev-dt{display:inline-flex;gap:4px}
.rev-outcome{display:inline-flex;gap:3px}
.chipbtn.out-easy{border-color:color-mix(in srgb,var(--ok) 50%,var(--line))}
.chipbtn.out-hard{border-color:color-mix(in srgb,var(--warn) 50%,var(--line))}
.calctl{display:inline-flex;gap:5px;flex-wrap:wrap;align-items:center}
.calctl a{text-decoration:none}
.mgrid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.mg-h{font-size:.66rem;font-weight:700;color:var(--faint);text-align:center;text-transform:uppercase}
.mg-c{position:relative;min-height:40px;border:1px solid var(--line);border-radius:7px;padding:3px 5px;background:var(--surface-2)}
.mg-c.empty{background:transparent;border-color:transparent}
.mg-c.today{border-color:var(--accent)}
.mg-d{font-size:.7rem;color:var(--muted);font-variant-numeric:tabular-nums}
.mg-n{position:absolute;right:5px;bottom:4px;min-width:20px;height:20px;border-radius:999px;background:var(--ok);color:#fff;font-size:.7rem;font-weight:700;display:grid;place-items:center;padding:0 5px}
.mg-n.sugg{background:transparent;color:var(--ok);border:1.5px solid var(--ok)}
:root[data-theme="dark"] .mg-n:not(.sugg){color:#0e1017}

/* progress */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px;margin-bottom:14px}
.tile{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 13px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:6px}
.tile-num{font-family:"Archivo",sans-serif;font-weight:800;font-size:1.5rem;font-variant-numeric:tabular-nums}
.tile-num .den{font-size:.9rem;color:var(--faint);font-weight:600}
.tile-lbl{font-size:.8rem;color:var(--muted);font-weight:600}
.tile .pbar-label{display:none}
.prow{display:grid;grid-template-columns:minmax(140px,1.2fr) 2fr 1fr;gap:10px;align-items:center;padding:6px 0;border-bottom:1px solid var(--line)}
.prow:last-child{border-bottom:none}
.prow-name{font-size:.84rem;font-weight:600;color:var(--ink);text-decoration:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
a.prow-name:hover{color:var(--accent)}
.prow-extra{font-size:.76rem;color:var(--muted);text-align:right}
@media (max-width:620px){.prow{grid-template-columns:1fr}.prow-extra{text-align:left}}
.wbars{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;align-items:end;height:170px}
.wbar{display:flex;flex-direction:column;align-items:center;gap:4px;height:100%}
.wbar-col{flex:1 1 auto;width:100%;max-width:44px;background:var(--surface-2);border-radius:6px;display:flex;align-items:flex-end;overflow:hidden}
.wbar-fill{width:100%;background:var(--accent);border-radius:6px 6px 0 0}
.wbar-v{font-size:.66rem;color:var(--muted);font-variant-numeric:tabular-nums;min-height:1em}
.wbar-l{font-size:.64rem;color:var(--faint);white-space:nowrap}