@font-face{font-family:"Newsreader";font-style:normal;font-weight:300 700;font-display:swap;src:url("fonts/newsreader-latin.woff2") format("woff2");unicode-range:U+0000-00FF,U+2013-2014,U+2018-201E,U+2022,U+2026,U+2212,U+00B0,U+00B7,U+2192}
@font-face{font-family:"Newsreader";font-style:normal;font-weight:300 700;font-display:swap;src:url("fonts/newsreader-latin-ext.woff2") format("woff2");unicode-range:U+0100-024F,U+0218-021B,U+1E00-1EFF,U+20AC}
@font-face{font-family:"Newsreader";font-style:italic;font-weight:400;font-display:swap;src:url("fonts/newsreader-italic-400-latin.woff2") format("woff2");unicode-range:U+0000-00FF,U+2013-2014,U+2018-201E,U+2026,U+2212}
@font-face{font-family:"Newsreader";font-style:italic;font-weight:400;font-display:swap;src:url("fonts/newsreader-italic-400-latin-ext.woff2") format("woff2");unicode-range:U+0100-024F,U+0218-021B,U+1E00-1EFF}
@font-face{font-family:"Plex";font-style:normal;font-weight:300 700;font-display:swap;src:url("fonts/IBMPlexSans-latin.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Plex";font-style:normal;font-weight:300 700;font-display:swap;src:url("fonts/IBMPlexSans-latin-ext.woff2") format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

:root{
  --bg:#f6f1e6;--bg2:#f0e9da;--card:#fffcf4;--fg:#1a2233;--mut:#3a445b;--line:#c9bfa9;--line-soft:#e3dac6;
  --link:#0e4a8c;--hi:#e6a516;--hi-ink:#633600;--paper:#fffdf7;--paper-ink:#1a2233;--paper-mut:#3a445b;--paper-line:#cfc6b3;
  --c-v:#0e4a8c;--c-r:#0a5a4c;--c-b:#6f3a00;--f-v:#2f7fd1;--f-r:#139b84;--f-b:#c7780a;
  --ok:#174d25;--soon:#6a3800;--late:#7d200d;--now:#7d200d;--na:#3a445b;--ok-bg:#e1efe0;--soon-bg:#fbe9c4;--late-bg:#f8dcd2;--na-bg:#e8e2d3;
  --winter:rgba(14,74,140,.045);
  --serif:"Newsreader",Georgia,serif;--sans:"Plex",system-ui,-apple-system,"Segoe UI",sans-serif;--top:46px;color-scheme:light;
  --to-top-bg:#fffcf4;--to-top-fg:#1a2233;--to-top-border:#c9bfa9;
}
:root[data-theme=dark]{
  --bg:#0e1420;--bg2:#141c2b;--card:#151d2c;--fg:#ece7dc;--mut:#b9c0cd;--line:#2d384d;--line-soft:#212b3d;
  --link:#9cc3ff;--hi:#f2b84b;--hi-ink:#f2b84b;--paper:#1b2436;--paper-ink:#ece7dc;--paper-mut:#b9c0cd;--paper-line:#3a465d;
  --c-v:#9cc3ff;--c-r:#74dcc8;--c-b:#f2b84b;--f-v:#5b9fe8;--f-r:#2fbba2;--f-b:#e8a22c;
  --ok:#8fd19a;--soon:#f2b84b;--late:#ff9c7a;--now:#ff9c7a;--na:#b9c0cd;--ok-bg:#16301f;--soon-bg:#33270f;--late-bg:#3a1d14;--na-bg:#222b3b;
  --winter:rgba(156,195,255,.06);color-scheme:dark;
  --to-top-bg:#151d2c;--to-top-fg:#ece7dc;--to-top-border:#2d384d;
}
*{box-sizing:border-box}[hidden]{display:none!important}svg[hidden]{display:none}
html{scroll-padding-top:calc(var(--top) + 14px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:400 1.125rem/1.62 var(--serif)}
a{color:var(--link);text-underline-offset:.18em;text-decoration-thickness:1px}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--hi);outline-offset:2px}
.skip-link{position:absolute;left:-999px}.skip-link:focus{left:8px;top:8px;z-index:99;background:var(--bg);padding:.5rem .8rem}

.topbar{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 92%,transparent);height:calc(var(--top) + var(--browser-safe-top,env(safe-area-inset-top)));padding:var(--browser-safe-top,env(safe-area-inset-top)) .9rem 0;display:flex;align-items:center;gap:.4rem;border-bottom:1px solid var(--line-soft);font-family:var(--sans)}
.topbar a{color:inherit;text-decoration:none}
.brand{display:flex;align-items:center;gap:.5rem;white-space:nowrap;font-weight:500}
.brand-mark{width:22px;height:22px;color:var(--c-v)}
.topnav{display:flex;gap:1rem;overflow-x:auto;scrollbar-width:none;margin-left:.8rem;color:var(--mut)}.topnav::-webkit-scrollbar{display:none}
.topnav a{white-space:nowrap;font-size:.85rem}.topnav a:hover{color:var(--fg)}
.spacer{flex:1}
.chip{font:500 .75rem/1 var(--sans);padding:.4rem .55rem;border:1px solid var(--line);border-radius:99px;min-height:30px;display:inline-flex;align-items:center}
.chip[aria-current=page]{border-color:var(--fg)}
.icon-btn{background:none;border:1px solid var(--line);border-radius:99px;width:34px;height:34px;display:grid;place-items:center;cursor:pointer;color:var(--fg)}
:root[data-theme=light] .i-moon,:root[data-theme=dark] .i-sun{display:none}
@media (max-width:1060px){.topnav{display:none}}

/* hero */
.hero{position:relative;overflow:hidden;padding:clamp(1.6rem,4vw,3rem) 1rem 2.2rem}
.hero-bg{position:absolute;inset:auto 0 0 0;height:220px;pointer-events:none;opacity:.9}
.hero-bg svg{width:100%;height:100%;display:block}
.pipe{fill:none;stroke:var(--line);stroke-width:7;stroke-linecap:round}.pipe.soft{stroke-width:3;stroke:var(--line-soft)}
.valve circle{fill:var(--bg);stroke:var(--line);stroke-width:3}.valve path{stroke:var(--line);stroke-width:3;fill:none}
.flame path{fill:var(--hi);opacity:.55}
.hero-grid{position:relative;max-width:1180px;margin:0 auto;display:grid;gap:1.6rem;grid-template-columns:minmax(0,1fr)}
@media (min-width:980px){.hero-grid{grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:2.4rem;align-items:start}}
.kicker{font:600 .74rem/1.35 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--hi-ink);margin:0 0 .5rem}
h1{font:500 clamp(1.7rem,3.6vw,2.7rem)/1.1 var(--serif);margin:0 0 .7rem;letter-spacing:-.01em}
.deck{font-size:1.08rem;line-height:1.5;margin:0 0 1.1rem;color:var(--mut);max-width:38rem}

.inputs{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:1.1rem 1.2rem 1rem;box-shadow:0 14px 40px rgba(26,34,51,.08);max-width:38rem}
.inputs-h{font:600 .78rem/1.3 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--mut);margin:0 0 .6rem}
.fld{margin:0 0 .75rem}
.fld label{display:block;font:600 .95rem/1.3 var(--sans);margin-bottom:.25rem}
.fld-row{display:flex;gap:.4rem}
.fld input[type=date]{flex:1;min-width:0;height:48px;border-radius:11px;border:1.5px solid var(--line);background:var(--bg);padding:0 .8rem;font:400 1.05rem var(--sans);color:var(--fg);color-scheme:inherit}
.fld input[type=date]:focus-visible{border-color:var(--hi)}
.fld.l-v input:not(:placeholder-shown){}
.x{flex:none;width:48px;height:48px;border-radius:11px;border:1px solid var(--line);background:transparent;cursor:pointer;font:400 1.4rem/1 var(--sans);color:var(--mut)}
.x:hover{color:var(--fg);border-color:var(--fg)}
.hint{font:400 .8rem/1.4 var(--sans);color:var(--mut);margin:.25rem 0 0}
.err{font:600 .82rem/1.3 var(--sans);color:var(--late);margin:.2rem 0 0;min-height:0}.err:empty{display:none}
.blank{font:400 .84rem/1.4 var(--sans);color:var(--mut);margin:.2rem 0 .6rem}
.tg{display:flex;gap:.65rem;align-items:flex-start;padding:.5rem 0;border-top:1px solid var(--line-soft);font:400 .88rem/1.4 var(--sans);cursor:pointer;min-height:44px}
.tg input{flex:none;width:22px;height:22px;margin:.1rem 0 0;accent-color:var(--c-v)}
.clearall{margin:.5rem 0 0;background:none;border:1px solid var(--line);border-radius:99px;padding:0 1rem;min-height:40px;cursor:pointer;font:500 .88rem var(--sans);color:var(--link)}
.clearall:hover{border-color:var(--fg)}
.clearall.second{margin-top:.7rem}

.live{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:1.1rem 1.2rem 1.1rem;box-shadow:0 14px 40px rgba(26,34,51,.08)}
.live-h{font:500 1.35rem/1.2 var(--serif);margin:0 0 .3rem}
.example-tag{font:400 .8rem/1.4 var(--sans);color:var(--mut);margin:0 0 .6rem;padding:.35rem .6rem;background:var(--bg2);border-radius:8px}
.example-tag:empty,.example-tag[hidden]{display:none}
.lanes{list-style:none;margin:0;padding:0;display:grid;gap:.2rem}
.lane{display:grid;grid-template-columns:64px minmax(0,1fr);gap:.2rem .85rem;align-items:center;padding:.7rem 0;border-top:1px solid var(--line-soft);font-family:var(--sans)}
.lane:first-child{border-top:0}
.lane .dial{grid-row:1/3;width:64px;height:64px}
.lane-n{font:600 1rem/1.25 var(--sans);grid-column:2}
.lane-i{font:400 .86rem/1.3 var(--sans);color:var(--mut);grid-column:2;margin-top:-.1rem}
.lane-d{grid-column:1/-1;font:400 .84rem/1.4 var(--sans);color:var(--mut)}
.lane-res{grid-column:2;display:flex;flex-wrap:wrap;align-items:baseline;gap:.25rem .6rem;margin-top:.15rem}
.lane-date{font:500 1.35rem/1.15 var(--serif);color:var(--fg)}
.l-v .lane-n{color:var(--c-v)}.l-r .lane-n{color:var(--c-r)}.l-b .lane-n{color:var(--c-b)}
.lane:not(:has(.dial)) {grid-template-columns:minmax(0,1fr)}.lane:not(:has(.dial)) .lane-n,.lane:not(:has(.dial)) .lane-i{grid-column:1}
.pill{display:inline-flex;align-items:center;gap:.3rem;font:600 .78rem/1 var(--sans);padding:.32rem .6rem;border-radius:99px;white-space:nowrap}
.pill svg{width:12px;height:12px}
.st-later .pill{background:var(--ok-bg);color:var(--ok)}.st-soon .pill{background:var(--soon-bg);color:var(--soon)}
.st-late .pill,.st-now .pill{background:var(--late-bg);color:var(--late)}.st-unknown .pill,.st-na .pill{background:var(--na-bg);color:var(--na)}
.summary{font:500 1.02rem/1.4 var(--serif);margin:.8rem 0 0;padding-top:.7rem;border-top:2px solid var(--line)}
.dial .trk{fill:none;stroke:var(--line-soft);stroke-width:8}
.dial .arc{fill:none;stroke-width:8;stroke-linecap:round;transition:stroke-dashoffset .6s ease}
.dial .l-v{stroke:var(--f-v)}.dial .l-r{stroke:var(--f-r)}.dial .l-b{stroke:var(--f-b)}
.dial.over .arc{stroke:var(--late)}
.dial text{font:600 19px var(--sans);fill:var(--fg)}.dial .u{font:500 10.5px var(--sans);fill:var(--mut)}
.dial .tick{stroke:var(--mut);stroke-width:2}

/* detail cards */
section.calc{padding-top:2.4rem}
.wide{max-width:1180px;margin:0 auto;padding:0 1rem}
.cards{display:grid;gap:1rem;grid-template-columns:minmax(0,1fr);margin-top:1rem}
@media (min-width:900px){.cards{grid-template-columns:repeat(3,minmax(0,1fr))}}
.cd{background:var(--card);border:1px solid var(--line);border-top:5px solid var(--f-v);border-radius:14px;padding:1rem 1.1rem 1.1rem;font-family:var(--sans)}
.cd.l-r{border-top-color:var(--f-r)}.cd.l-b{border-top-color:var(--f-b)}
.cd h3{font:600 1.02rem/1.3 var(--sans);margin:0 0 .5rem}
.cd.l-v h3{color:var(--c-v)}.cd.l-r h3{color:var(--c-r)}.cd.l-b h3{color:var(--c-b)}
.cd .bigdate{font:500 1.7rem/1.1 var(--serif);margin:.5rem 0 .15rem}
.cd .rel{font:400 .9rem/1.3 var(--sans);color:var(--mut);margin:0 0 .6rem}
.cd p{font:400 .9rem/1.5 var(--sans);margin:0 0 .6rem}
.cd dl{margin:.6rem 0 0;font-size:.84rem;line-height:1.45}.cd dt{font-weight:600;color:var(--mut);margin-top:.5rem}.cd dd{margin:0}
.cd .find{display:inline-block;margin-top:.4rem;font-size:.86rem}
.sameyear{margin:1rem 0 0;padding:.8rem 1rem;border-left:5px solid var(--f-r);background:var(--card);font:400 .95rem/1.5 var(--sans);border-radius:0 10px 10px 0}
.tlbox{margin-top:1.6rem;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:.9rem 1rem 1rem}
.tlbox h3{font:600 .8rem var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--mut);margin:0 0 .4rem}
#timeline svg{width:100%;height:auto;display:block}
#timeline .ax{stroke:var(--line);stroke-width:1}#timeline .yr{font:400 11px var(--sans);fill:var(--mut)}
#timeline .win{fill:var(--winter)}#timeline .wl{font:600 10px var(--sans);fill:var(--mut);letter-spacing:.08em}
#timeline .today{stroke:var(--fg);stroke-width:1.5;stroke-dasharray:4 3}#timeline .tl{font:600 11px var(--sans);fill:var(--fg)}
#timeline .ln{font:600 12px var(--sans)}.tl-v .ln{fill:var(--c-v)}.tl-r .ln{fill:var(--c-r)}.tl-b .ln{fill:var(--c-b)}
#timeline .bar{stroke-width:10;stroke-linecap:round;opacity:.45}.tl-v .bar{stroke:var(--f-v)}.tl-r .bar{stroke:var(--f-r)}.tl-b .bar{stroke:var(--f-b)}
#timeline .done{stroke-width:2.5;fill:var(--bg)}.tl-v .done,.tl-v .due{stroke:var(--f-v)}.tl-r .done,.tl-r .due{stroke:var(--f-r)}.tl-b .done,.tl-b .due{stroke:var(--f-b)}
#timeline .done{fill:currentColor}.tl-v .done{fill:var(--f-v)}.tl-r .done{fill:var(--f-r)}.tl-b .done{fill:var(--f-b)}
#timeline .due{fill:var(--card);stroke-width:3}#timeline .dl{font:500 11px var(--sans);fill:var(--fg)}
#timeline .alt{stroke-dasharray:3 3;fill:none;stroke-width:2}.tl-v .alt{stroke:var(--f-v)}
.notice-bar{font:400 .84rem/1.5 var(--sans);color:var(--mut);margin:1rem 0 0;max-width:52rem}

/* mocks */
.mocks{display:grid;gap:1.4rem;grid-template-columns:minmax(0,1fr);margin-top:1.4rem}
@media (min-width:900px){.mocks{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start}}
.mockfig{margin:0;font-family:var(--sans)}
.mock{width:100%;height:auto;display:block;filter:drop-shadow(0 8px 18px rgba(26,34,51,.14))}
.mock .sheet{fill:var(--paper);stroke:var(--paper-line);stroke-width:1.5}.mock .fold{stroke:var(--paper-line);stroke-width:1.5}
.mock .pt{font:600 12px var(--sans);fill:var(--paper-ink)}.mock .ph{font:700 12.5px var(--sans);fill:var(--paper-ink);letter-spacing:.04em}
.mock .pm{font:400 11.5px var(--sans);fill:var(--paper-mut)}.mock .pk{font:600 13px var(--sans);fill:var(--paper-ink)}.mock .pst{font:700 13px var(--sans);fill:var(--paper-ink)}
.mock .rule{stroke:var(--paper-line);stroke-width:1.2}.mock .rule.soft{stroke-width:.8;opacity:.7}
.mock .hi{fill:color-mix(in srgb,var(--hi) 38%,transparent);stroke:var(--hi);stroke-width:2.5}
.mock .dim{opacity:.55}.mock .cross{stroke:var(--late);stroke-width:2.2;stroke-linecap:round}
.mock .box{fill:none;stroke:var(--paper-mut);stroke-width:1.4}.mock .tick{stroke:var(--paper-ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.mock .stamp{fill:none;stroke:var(--paper-ink);stroke-width:2}.mock .sig{stroke:var(--paper-mut);stroke-width:1.6;stroke-linecap:round}
.mockfig figcaption{margin-top:.7rem;font-size:.9rem;line-height:1.45}.mockfig figcaption strong{display:block;font-size:1rem}.mockfig figcaption span{display:block;color:var(--mut);font-size:.82rem;margin-bottom:.35rem}
.mockfig ul{margin:0;padding:0;list-style:none}.mockfig li{padding-left:1.4rem;position:relative;margin-bottom:.25rem}
.mockfig li::before{content:"";position:absolute;left:0;top:.35em;width:.85rem;height:.85rem;border-radius:3px;background:color-mix(in srgb,var(--hi) 55%,transparent);border:2px solid var(--hi)}
.mockfig li.no::before{background:none;border-color:var(--late);border-radius:50%}
.mockfig li.no{color:var(--late)}

/* chapters */
.prose{max-width:41rem;margin:0 auto;padding:0 1rem}
section.ch{padding:3.2rem 0 1rem;border-top:1px solid var(--line-soft)}
h2{font:500 clamp(1.5rem,3vw,2.05rem)/1.15 var(--serif);margin:0 0 1rem;letter-spacing:-.005em}
h3{font:600 1.05rem/1.3 var(--sans);margin:1.6rem 0 .5rem}
.anchor{margin-left:.4rem;color:var(--mut);text-decoration:none;font-size:.7em;opacity:0}
h2:hover .anchor,.anchor:focus{opacity:1}
p{margin:0 0 1rem}
ul,ol{padding-left:1.3rem;margin:0 0 1rem}li{margin-bottom:.4rem}
.ops{max-width:1180px;margin:1.4rem auto 0;display:grid;gap:1rem;grid-template-columns:minmax(0,1fr)}
#operatii .prose{max-width:1180px}#operatii .prose>h2,#operatii .prose>p{max-width:41rem}
@media (min-width:900px){.ops{grid-template-columns:repeat(2,minmax(0,1fr))}}
.op{background:var(--card);border:1px solid var(--line);border-left:6px solid var(--f-v);border-radius:12px;padding:1rem 1.2rem;font-family:var(--sans)}
.op-r{border-left-color:var(--f-r)}.op-b{border-left-color:var(--f-b)}.op-m{border-left-color:var(--line);border-left-style:dashed}
.op h3{margin:0 0 .4rem;font-size:1.05rem}.op-v h3{color:var(--c-v)}.op-r h3{color:var(--c-r)}.op-b h3{color:var(--c-b)}
.op dl{margin:0;font-size:.9rem;line-height:1.5}.op dt{font-weight:600;color:var(--mut);margin-top:.55rem;font-size:.8rem;letter-spacing:.04em;text-transform:uppercase}.op dd{margin:0}
.tablewrap{overflow-x:auto;margin:0 0 1.2rem}
.fines{width:100%;border-collapse:collapse;font:400 .92rem/1.45 var(--sans)}
.fines th,.fines td{text-align:left;padding:.6rem .7rem;border-bottom:1px solid var(--line-soft);vertical-align:top}
.fines th{font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mut)}.fines td:nth-child(2){font-weight:700;white-space:nowrap}
.qa{border-top:1px solid var(--line-soft);padding:.2rem 0}
.qa summary{cursor:pointer;font:600 1.02rem/1.4 var(--sans);padding:.7rem 0;list-style:none;min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.qa summary::-webkit-details-marker{display:none}.qa summary::after{content:"+";font-size:1.4rem;color:var(--mut)}.qa[open] summary::after{content:"–"}
.qa p{font:400 1rem/1.55 var(--serif);margin:0 0 .9rem}
.sources{font:400 .9rem/1.5 var(--sans)}.srcnote{font:400 .85rem/1.5 var(--sans);color:var(--mut)}

.share{margin:1rem 0 0}
.share-row{display:flex;align-items:center;gap:.45rem;flex-wrap:wrap}
.share-label{font:400 .8rem var(--sans);color:var(--mut);margin-right:.2rem}
.ic{width:40px;height:40px;display:grid;place-items:center;border-radius:99px;border:1px solid var(--line);background:transparent;color:var(--fg);cursor:pointer}
.ic:hover,.ic:focus-visible{color:var(--hi-ink);border-color:var(--hi)}
@media (pointer:coarse){.ic{width:44px;height:44px}}
.share-msg{font:400 .8rem var(--sans);color:var(--mut);margin:.3rem 0 0;min-height:1em}
.site-footer{max-width:41rem;margin:3rem auto 0;padding:1.4rem 1rem 3rem;border-top:1px solid var(--line-soft);display:flex;gap:1.2rem;flex-wrap:wrap;font:400 .85rem var(--sans);color:var(--mut)}
.site-footer a{color:inherit}

.rail{position:fixed;right:10px;top:50%;transform:translateY(-50%);z-index:30;display:flex;flex-direction:column;gap:9px;opacity:.75;transition:opacity .3s}
.rail-dot{position:relative;display:block;width:12px;height:12px}
.rail .dot{position:absolute;inset:3px;border-radius:50%;background:var(--line);transition:background .2s}
.rail-dot[aria-current=true] .dot{background:var(--fg)}
.rail-label{position:absolute;right:18px;top:50%;transform:translateY(-50%);white-space:nowrap;font:400 .76rem var(--sans);background:var(--card);border:1px solid var(--line);padding:.15rem .45rem;border-radius:6px;opacity:0;pointer-events:none;transition:opacity .15s}
.rail-dot:hover .rail-label,.rail-dot:focus-visible .rail-label{opacity:1}
@media (max-width:1300px){.rail{display:none}}
@media print{.rail,.topbar,.share,.hero-bg{display:none}}
@media (prefers-reduced-motion:reduce){.dial .arc{transition:none}}
@media (max-width:520px){.lane{grid-template-columns:56px minmax(0,1fr)}.lane .dial{width:56px;height:56px}.lane-date{font-size:1.2rem}}
@media (max-width:420px){.brand span{display:none}.topbar{padding-left:.6rem;padding-right:.6rem}}