/* DecisionOps AI — “Decision Ledger” editorial system
   Paper + ink + vermilion exceptions. Tabular numerals everywhere data lives. */

:root{
  --paper:#f6f1e5; --card:#fdfbf4; --card2:#f2ecdc;
  --ink:#17251f; --ink2:#33453c; --muted:#5c6b62; --hair:#d9d2be; --hair2:#c4bca4;
  --green:#0e6b4f; --green-deep:#0a4f3a; --lime:#d6ea7c;
  --verm:#b3402e; --amber:#a06a00; --blue:#2f5d7c; --violet:#6b4f8a;
  --good-bg:#e3efe7; --warn-bg:#f7ecd4; --risk-bg:#f6e2dc; --blue-bg:#e2ebf1; --neutral-bg:#ece7d8;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Consolas,monospace;
  --sans:"IBM Plex Sans","PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",sans-serif;
  --disp:"Fraunces","Georgia","PingFang SC","Microsoft YaHei",serif;
  color-scheme: light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font:15px/1.6 var(--sans);
  background-image:
    radial-gradient(1200px 500px at 85% -100px, rgba(14,107,79,.07), transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .04 0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
a{color:var(--green);text-decoration-color:rgba(14,107,79,.4);text-underline-offset:3px}
button,select,input{font:inherit;color:inherit}
.num{font-variant-numeric:tabular-nums lining-nums;font-feature-settings:"tnum"}
.shell{max-width:1240px;margin:auto;padding:0 30px}
.mono{font-family:var(--mono)}
.hidden{display:none !important}

/* ---------- topbar ---------- */
.topbar{position:sticky;top:0;z-index:50;background:rgba(246,241,229,.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--hair)}
.topbar .shell{display:flex;align-items:center;gap:22px;height:58px}
.wordmark{font-family:var(--disp);font-weight:700;font-size:19px;letter-spacing:-.02em;white-space:nowrap}
.wordmark em{font-style:normal;color:var(--green)}
.topnav{display:flex;gap:16px;margin-left:auto;overflow-x:auto}
.topnav a{font-family:var(--mono);font-size:12px;text-decoration:none;color:var(--ink2);white-space:nowrap;letter-spacing:.04em}
.topnav a:hover{color:var(--green)}
.langsw{display:flex;border:1px solid var(--ink);margin-left:8px}
.langsw button{border:0;background:transparent;padding:5px 11px;font-family:var(--mono);font-size:12px;cursor:pointer}
.langsw button.on{background:var(--ink);color:var(--paper)}

/* ---------- hero ---------- */
.hero{padding:84px 0 64px;border-bottom:3px double var(--hair2);position:relative;overflow:hidden}
.hero .grid{display:grid;grid-template-columns:1.25fr .75fr;gap:64px;align-items:end}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--green);display:flex;align-items:center;gap:10px}
.kicker::before{content:"";width:34px;height:1px;background:var(--green)}
h1.masthead{font-family:var(--disp);font-weight:900;font-size:clamp(46px,7.2vw,96px);line-height:.92;letter-spacing:-.045em;margin:22px 0 24px}
h1.masthead .row2{display:block;color:var(--green);font-style:italic;font-weight:600}
.lede{font-size:19px;line-height:1.65;color:var(--ink2);max-width:640px}
.lede b{color:var(--ink)}
.hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);text-decoration:none;font-weight:600;font-size:14px;cursor:pointer;transition:transform .15s ease, box-shadow .15s ease}
.btn:hover{transform:translate(-1px,-2px);box-shadow:3px 4px 0 rgba(23,37,31,.25)}
.btn.primary{background:var(--ink);color:var(--paper)}
.btn.primary:hover{box-shadow:3px 4px 0 var(--lime)}
.ledger-card{background:var(--ink);color:#eef2ea;padding:26px 26px 20px;box-shadow:16px 16px 0 var(--lime);position:relative}
.ledger-card::before{content:"AUDITED";position:absolute;top:14px;right:-34px;transform:rotate(32deg);font-family:var(--mono);font-size:10px;letter-spacing:.34em;color:rgba(214,234,124,.9);border:1px solid rgba(214,234,124,.6);padding:3px 26px}
.ledger-card .lbl{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--lime)}
.ledger-card strong.big{display:block;font-family:var(--disp);font-size:64px;font-weight:900;letter-spacing:-.05em;line-height:1;margin:10px 0 2px}
.ledger-card small{color:#b9c6bb}
.ledger-card dl{margin:20px 0 0;display:grid;grid-template-columns:1fr auto;gap:8px 14px}
.ledger-card dt,.ledger-card dd{margin:0;padding-top:8px;border-top:1px solid #3b4c42;font-size:13px}
.ledger-card dd{font-weight:700;text-align:right}
.statband{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--hair2);border-left:0;margin-top:64px;background:var(--card)}
.statband>div{border-left:1px solid var(--hair2);padding:18px 20px}
.statband strong{display:block;font-family:var(--disp);font-size:32px;font-weight:900;letter-spacing:-.04em}
.statband span{font-size:12.5px;color:var(--muted)}

/* ---------- sections ---------- */
section.sec{padding:78px 0;border-bottom:1px solid var(--hair)}
.sec-head{display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:baseline;margin-bottom:36px}
.sec-no{font-family:var(--mono);font-size:13px;color:var(--verm);letter-spacing:.1em;border:1px solid var(--verm);padding:4px 9px;border-radius:99px}
.sec-head h2{font-family:var(--disp);font-weight:900;font-size:clamp(30px,3.6vw,46px);letter-spacing:-.035em;line-height:1.02;margin:0}
.sec-head p{grid-column:2;margin:12px 0 0;color:var(--muted);max-width:760px;font-size:15.5px}

/* loop */
.loop{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--hair2);background:var(--card)}
.loop article{padding:22px 20px 26px;border-left:1px solid var(--hair2);position:relative;min-height:170px}
.loop article:first-child{border-left:0}
.loop b{font-family:var(--mono);font-size:11px;color:var(--verm);letter-spacing:.12em}
.loop strong{display:block;font-family:var(--disp);font-size:19px;margin:12px 0 8px;letter-spacing:-.02em}
.loop span{color:var(--muted);font-size:13px;line-height:1.55}
.loop article::after{content:"→";position:absolute;right:-9px;top:20px;background:var(--paper);color:var(--verm);font-weight:700;z-index:2}
.loop article:last-child::after{content:""}

/* charts */
.chartrow{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.chartrow2{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
.panel{background:var(--card);border:1px solid var(--hair2);padding:22px}
.panel h3{margin:0 0 4px;font-family:var(--disp);font-size:20px;letter-spacing:-.02em}
.panel .sub{margin:0 0 16px;color:var(--muted);font-size:13px}
.chart-svg{width:100%;height:auto;display:block}
.chart-svg text{font-family:var(--mono);font-size:10.5px;fill:var(--muted)}
.gridline{stroke:var(--hair);stroke-width:1}
.tooltip{position:fixed;pointer-events:none;background:var(--ink);color:var(--paper);font:12px/1.5 var(--mono);padding:8px 11px;box-shadow:4px 4px 0 rgba(23,37,31,.2);z-index:99;max-width:260px;white-space:nowrap}
.tooltip b{color:var(--lime)}

/* pills & provenance */
.pill{display:inline-flex;align-items:center;gap:5px;font-family:var(--mono);font-size:11px;letter-spacing:.05em;padding:4px 9px;border-radius:2px;white-space:nowrap}
.pill.scale{background:var(--good-bg);color:var(--green-deep)}
.pill.improve{background:var(--warn-bg);color:var(--amber)}
.pill.delist{background:var(--risk-bg);color:var(--verm)}
.pill.price{background:var(--blue-bg);color:var(--blue)}
.pill.protect{background:var(--neutral-bg);color:var(--ink2)}
.pill.risk-high{background:var(--risk-bg);color:var(--verm)}
.pill.risk-medium{background:var(--warn-bg);color:var(--amber)}
.pill.risk-low{background:var(--good-bg);color:var(--green-deep)}
.prov{display:inline-block;font-family:var(--mono);font-size:9.5px;letter-spacing:.08em;padding:1px 6px;border-radius:99px;border:1px solid;vertical-align:1px;margin-left:6px}
.prov.real{color:var(--green-deep);border-color:rgba(14,107,79,.5);background:rgba(14,107,79,.07)}
.prov.proxy{color:var(--blue);border-color:rgba(47,93,124,.5);background:rgba(47,93,124,.07)}
.prov.assumption{color:var(--amber);border-color:rgba(160,106,0,.5);background:rgba(160,106,0,.08)}
.prov.synthetic{color:var(--verm);border-color:rgba(179,64,46,.5);background:rgba(179,64,46,.07)}
.prov-legend{display:flex;gap:14px;flex-wrap:wrap;margin-top:14px;font-size:12.5px;color:var(--muted)}

/* explorer / workbench layout */
.tool{display:grid;grid-template-columns:330px 1fr;gap:20px;align-items:start}
.tool .side{position:sticky;top:78px}
.field{margin-bottom:16px}
.field label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:7px}
.field select,.field input[type=text]{width:100%;background:#fff;border:1px solid var(--hair2);padding:11px 12px;border-radius:0}
.list{display:flex;flex-direction:column;max-height:430px;overflow:auto;border:1px solid var(--hair2);background:#fff}
.list button{display:flex;justify-content:space-between;gap:10px;align-items:center;text-align:left;border:0;border-bottom:1px solid var(--hair);background:transparent;padding:10px 12px;cursor:pointer;font-size:13px}
.list button:hover{background:var(--card2)}
.list button.on{background:var(--ink);color:var(--paper)}
.list button.on .pill{filter:none}
.rec{border:1px solid var(--hair2);background:#fff;margin-bottom:12px}
.rec-head{display:flex;align-items:center;gap:12px;padding:13px 16px;border-bottom:1px solid var(--hair);cursor:pointer}
.rec-head .prio{font-family:var(--disp);font-weight:900;font-size:22px;width:34px;color:var(--verm)}
.rec-head .sku{font-weight:700;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis}
.rec-body{padding:14px 16px;border-bottom:1px solid var(--hair);display:none}
.rec.open .rec-body{display:block}
.rec-exp{font-size:13.5px;color:var(--ink2);margin:0 0 12px}
.evrows{display:grid;gap:6px}
.evrows div{border-left:3px solid var(--lime);background:var(--card2);padding:7px 10px;font-size:12.5px}
.evrows code{color:var(--green-deep);font-weight:700;font-family:var(--mono)}
.rec-actions{display:flex;gap:8px;padding:10px 16px;align-items:center}
.rec-actions .note{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--muted)}
.mini{padding:7px 13px;border:1px solid var(--ink);background:transparent;font-size:12.5px;font-weight:600;cursor:pointer}
.mini:hover{background:var(--ink);color:var(--paper)}
.mini.ok.done{background:var(--green);border-color:var(--green);color:#fff}
.mini.no.done{background:var(--verm);border-color:var(--verm);color:#fff}
.stamp{font-family:var(--mono);font-size:10px;letter-spacing:.3em;border:2px solid;padding:4px 10px;transform:rotate(-6deg);display:inline-block}
.stamp.approved{color:var(--green);border-color:var(--green)}
.stamp.rejected{color:var(--verm);border-color:var(--verm)}

/* tables */
table.data{width:100%;border-collapse:collapse;font-size:13px;background:#fff;border:1px solid var(--hair2)}
table.data th{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);text-align:right;padding:9px 10px;border-bottom:2px solid var(--ink);white-space:nowrap}
table.data th:first-child,table.data td:first-child{text-align:left}
table.data td{padding:8px 10px;border-bottom:1px solid var(--hair);text-align:right}
table.data tr:hover td{background:var(--card2)}

/* insufficient evidence card */
.noev{border:2px dashed var(--verm);background:var(--risk-bg);padding:22px;font-size:14.5px}
.noev b{font-family:var(--disp);font-size:19px;display:block;margin-bottom:6px;color:var(--verm)}

/* queue strip */
.queue{display:flex;gap:0;border:1px solid var(--hair2);background:var(--card);margin-bottom:18px}
.queue>div{flex:1;padding:12px 16px;border-left:1px solid var(--hair2)}
.queue>div:first-child{border-left:0}
.queue strong{display:block;font-family:var(--disp);font-size:24px;font-weight:900}
.queue span{font-size:11.5px;color:var(--muted);font-family:var(--mono);letter-spacing:.06em;text-transform:uppercase}
.queue button{align-self:center;margin:0 14px}

/* byod */
.drop{border:2px dashed var(--hair2);background:var(--card);padding:26px;text-align:center;transition:border-color .2s}
.drop.hover{border-color:var(--green)}
.drop input{display:none}
.byod-note{border:1px solid var(--green);background:var(--good-bg);padding:14px 16px;font-size:13.5px;margin-bottom:18px}
.byod-note b{color:var(--green-deep)}

/* honesty section */
.hcards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.hcards article{border-top:3px solid var(--ink);background:var(--card);padding:20px;border-left:1px solid var(--hair);border-right:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.hcards .n{font-family:var(--disp);font-weight:900;font-size:44px;letter-spacing:-.05em}
.hcards h4{font-family:var(--disp);margin:8px 0;font-size:18px;letter-spacing:-.01em}
.hcards p{margin:0;color:var(--muted);font-size:13.5px}
.warnbox{margin-top:24px;border:1px solid var(--amber);background:#fbf3df;padding:16px 18px;color:#6b4a0a;font-size:14px}

/* footer */
footer{padding:48px 0 64px;color:var(--muted);font-size:13.5px}
footer .cols{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer .mark{font-family:var(--disp);font-weight:900;color:var(--ink);font-size:17px}

/* reveal animation */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.rv{transition:none;opacity:1;transform:none}}

@media(max-width:980px){
  .hero .grid,.chartrow,.chartrow2,.tool,.hcards{grid-template-columns:1fr}
  .loop{grid-template-columns:1fr 1fr}
  .loop article::after{content:""}
  .statband{grid-template-columns:1fr 1fr}
  .tool .side{position:static}
  .ledger-card{margin-right:16px}
}