/* ============================================================================
   DeepSensi v3 — Minimal · Monochromatic · Serious
   Flat, hairline-ruled, generous whitespace. Serif display, sans body.
   Grayscale only. No shadows, no gradients, no rounded cards. No em dashes.
   ============================================================================ */

:root{
  --bg:#ffffff;
  --bg-2:#f6f6f5;
  --ink:#0b0b0c;
  --ink-2:#26262a;
  --muted:#6a6a6f;
  --faint:#9a9aa0;
  --line:#e7e7e4;
  --line-2:#d6d6d2;
  --green:#1e864a;
  --green-deep:#14663a;
  --green-wash:#eef7f1;
  --dark:#0b0b0c;
  --dark-ink:#0b0b0c;
  --serif:'Newsreader',Georgia,'Times New Roman',serif;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --maxw:1160px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --hdr-bg:rgba(255,255,255,.92);
}

/* ── dark theme ───────────────────────────────────────────────────────────── */
[data-theme="dark"]{
  --bg:#0c0c0d;
  --bg-2:#161619;
  --ink:#f3f3f1;
  --ink-2:#d6d6d2;
  --muted:#9c9ca2;
  --faint:#6c6c72;
  --line:#242427;
  --line-2:#35353c;
  --green:#33c079;
  --green-deep:#63d89b;
  --green-wash:rgba(51,192,121,.14);
  --hdr-bg:rgba(12,12,13,.9);
}
html{background:var(--bg)}
body,.hdr,.card,.hero,.sec,.statement,.f-in,.sel,.area,.cmp-row .track{transition:background-color .3s var(--ease),border-color .3s var(--ease),color .3s var(--ease)}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);line-height:1.55;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-size:17px}
a{color:inherit;text-decoration:none}
img,video{max-width:100%;display:block}
::selection{background:var(--ink);color:var(--bg)}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(1.25rem,5vw,3rem)}

/* ── type ─────────────────────────────────────────────────────────────────── */
h1,h2,h3{font-family:var(--serif);font-weight:420;letter-spacing:-.012em;line-height:1.06;color:var(--ink)}
h1{font-size:clamp(2.6rem,6.4vw,5rem)}
h2{font-size:clamp(1.9rem,3.8vw,3rem)}
h3{font-size:1.24rem;letter-spacing:0}
.eyebrow{font-family:var(--sans);font-size:.7rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}
.lead{font-size:clamp(1.08rem,1.5vw,1.28rem);color:var(--muted);font-weight:400;line-height:1.55}
.serif{font-family:var(--serif)}
sup{font-size:.62em;font-family:var(--sans)}
strong{font-weight:600;color:var(--ink)}
em{font-style:italic}

.rule{height:1px;background:var(--line);border:0;margin:0}

/* ── links / buttons (minimal, text-forward) ──────────────────────────────── */
.lnk{font-family:var(--sans);font-size:.86rem;font-weight:600;color:var(--ink);
  display:inline-flex;align-items:center;gap:.5rem;border-bottom:1px solid var(--ink);padding-bottom:2px;
  transition:gap .2s var(--ease),opacity .2s}
.lnk:hover{gap:.8rem;opacity:.7}
.lnk.muted{color:var(--muted);border-color:var(--line-2)}
.btn{font-family:var(--sans);font-size:.9rem;font-weight:600;display:inline-flex;align-items:center;gap:.6rem;
  height:52px;padding:0 1.7rem;background:var(--ink);color:var(--bg);border:1px solid var(--ink);transition:.18s var(--ease)}
.btn:hover{background:var(--bg);color:var(--ink)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:var(--bg)}

/* ── header ───────────────────────────────────────────────────────────────── */
.hdr{position:sticky;top:0;z-index:100;background:var(--hdr-bg);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:1.5rem}
.brand{font-family:var(--sans);font-weight:700;font-size:1.02rem;letter-spacing:-.01em;display:flex;align-items:center;gap:.55rem}
.brand .mk{width:14px;height:17px;flex:none;border-radius:50% 50% 50% 50%/58% 58% 42% 42%;
  background:radial-gradient(ellipse at 42% 32%,#4fdf95 0%,#174a2e 68%)}
.nav{display:flex;align-items:center;gap:1.35rem}
.nav a{font-family:var(--sans);font-size:.82rem;font-weight:500;color:var(--muted);transition:color .15s;white-space:nowrap}
.nav a:hover{color:var(--ink)}
.nav .req{color:var(--ink);font-weight:600;border-bottom:1px solid var(--ink);padding-bottom:2px}
.burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.burger span{width:22px;height:1.5px;background:var(--ink)}
.hdr-ctrl{display:flex;align-items:center;gap:.3rem}
.theme-tog{background:none;border:0;cursor:pointer;color:var(--muted);display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;transition:color .15s}
.theme-tog:hover{color:var(--ink)}
.theme-tog svg{display:block}
.theme-tog .ic-sun{display:none}
[data-theme="dark"] .theme-tog .ic-moon{display:none}
[data-theme="dark"] .theme-tog .ic-sun{display:block}

/* ── hero ─────────────────────────────────────────────────────────────────── */
.hero{padding:clamp(3.5rem,9vw,8rem) 0 clamp(2.5rem,5vw,4rem)}
.hero .eyebrow{margin-bottom:1.6rem}
.hero h1{max-width:16ch}
.hero .lead{margin:1.8rem 0 2.4rem;max-width:56ch}
.hero-actions{display:flex;align-items:center;gap:1.8rem;flex-wrap:wrap}

/* ── stats band ───────────────────────────────────────────────────────────── */
.stats{border-top:1px solid var(--ink);border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:1.8rem 1.6rem 1.7rem;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat .num{font-family:var(--sans);font-size:clamp(1.8rem,3vw,2.5rem);font-weight:600;letter-spacing:-.03em;line-height:1;color:var(--ink)}
.stat .lbl{font-size:.76rem;color:var(--muted);margin-top:.7rem;line-height:1.4;max-width:22ch}

/* ── generic section ──────────────────────────────────────────────────────── */
.sec{padding:clamp(3.5rem,8vw,7rem) 0}
.sec.line{border-top:1px solid var(--line)}
.sec-head{max-width:64ch}
.sec-head .eyebrow{margin-bottom:1.2rem}
.sec-head .lead{margin-top:1.3rem}

/* statement block */
.statement{padding:clamp(3rem,7vw,6rem) 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--line)}
.statement h2{max-width:20ch}
.statement p{color:var(--muted);max-width:60ch;margin-top:1.4rem;font-size:1.1rem}
.statement strong{color:var(--ink);font-weight:600}

/* ── audiences (editorial list) ───────────────────────────────────────────── */
.aud{display:grid;grid-template-columns:5.5rem 1fr;gap:clamp(1rem,4vw,3rem);
  padding:clamp(2.2rem,4vw,3.2rem) 0;border-top:1px solid var(--line);align-items:start}
.aud:first-of-type{border-top:1px solid var(--ink)}
.aud-idx{font-family:var(--serif);font-size:1.5rem;color:var(--faint);font-weight:400;line-height:1}
.aud-body{max-width:64ch}
.aud-body .eyebrow{margin-bottom:1rem}
.aud-body h2{font-size:clamp(1.5rem,2.6vw,2.15rem);max-width:20ch}
.aud-copy{color:var(--muted);margin:1rem 0 1.4rem;font-size:1.03rem;max-width:56ch}
.aud-copy b{color:var(--ink);font-weight:600}

/* ── proof / comparison ───────────────────────────────────────────────────── */
.cmp{margin-top:2.4rem;border-top:1px solid var(--ink)}
.cmp-row{display:grid;grid-template-columns:1fr 4rem;align-items:center;gap:1.2rem;
  padding:1rem 0;border-bottom:1px solid var(--line)}
.cmp-row .n{font-size:.98rem;color:var(--muted)}
.cmp-row.us .n{color:var(--green-deep);font-weight:700}
.cmp-row .v{font-family:var(--sans);font-weight:600;font-size:1rem;color:var(--ink);text-align:right}
.cmp-row.us .v{color:var(--green-deep)}
.cmp-row .track{grid-column:1/-1;height:2px;background:var(--line);position:relative}
.cmp-row .fill{position:absolute;left:0;top:0;height:100%;background:var(--faint)}
.cmp-row.us .track{height:4px;background:var(--green-wash)}
.cmp-row.us .fill{background:var(--green)}
.pnote{font-size:.8rem;color:var(--faint);margin-top:1.4rem;max-width:78ch;line-height:1.6}
.papers{margin-top:2.4rem;border-top:1px solid var(--line)}
.paper{display:grid;grid-template-columns:1fr auto;gap:1rem;align-items:center;
  padding:1.3rem 0;border-bottom:1px solid var(--line);transition:padding-left .2s var(--ease)}
.paper:hover{padding-left:.6rem}
.paper .t{font-family:var(--serif);font-size:1.12rem;color:var(--ink)}
.paper .d{font-size:.85rem;color:var(--muted);margin-top:.25rem}
.paper .go{font-size:.8rem;font-weight:600;color:var(--ink);white-space:nowrap}

/* ── compliance strip ─────────────────────────────────────────────────────── */
.strip{display:flex;flex-wrap:wrap;gap:1.4rem 2.2rem;padding:clamp(2rem,4vw,3rem) 0;
  border-top:1px solid var(--line);align-items:center}
.strip span{font-size:.78rem;color:var(--muted);letter-spacing:.02em}
.strip b{color:var(--ink);font-weight:600}

/* ── footer ───────────────────────────────────────────────────────────────── */
.ftr{border-top:1px solid var(--ink);padding:clamp(3rem,6vw,4.5rem) 0 2.5rem}
.ftr-top{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:clamp(1.5rem,3vw,2.5rem)}
.ftr-brand .brand{margin-bottom:1rem}
.ftr-brand p{font-size:.86rem;color:var(--muted);max-width:34ch}
.ftr-col h4{font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin-bottom:1.1rem;font-weight:600}
.ftr-col a{display:block;font-size:.87rem;color:var(--muted);padding:.3rem 0;transition:color .15s}
.ftr-col a:hover{color:var(--ink)}
.ftr-bottom{display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;
  margin-top:clamp(2.5rem,4vw,3.5rem);padding-top:1.5rem;border-top:1px solid var(--line);
  font-size:.78rem;color:var(--faint)}
.ftr-bottom b{color:var(--ink);font-weight:600}

/* ── reveal ───────────────────────────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ── responsive ───────────────────────────────────────────────────────────── */
@media(max-width:820px){
  .ftr-top{grid-template-columns:1fr 1fr}
  .ftr-brand{grid-column:1/-1}
  .stats{grid-template-columns:1fr 1fr}
  .stat{border-top:1px solid var(--line)}
  .stat:nth-child(-n+2){border-top:0}
  .stat:nth-child(odd){border-left:0;padding-left:0}
}
@media(max-width:900px){
  .nav{position:absolute;top:70px;left:0;right:0;display:none;flex-direction:column;align-items:flex-start;gap:0;
    background:var(--bg);border-bottom:1px solid var(--line);padding:.5rem 0}
  .nav.open{display:flex}
  .nav a{width:100%;padding:.95rem clamp(1.25rem,5vw,3rem);border-top:1px solid var(--line)}
  .nav .req{border-bottom:0}
  .burger{display:flex}
}
@media(max-width:640px){
  .aud{grid-template-columns:1fr;gap:.4rem}
  .aud-idx{font-size:1.1rem}
}
@media(max-width:460px){
  .stats{grid-template-columns:1fr}
  .stat{border-left:0;padding-left:0;border-top:1px solid var(--line)}
  .stat:first-child{border-top:0}
  .ftr-top{grid-template-columns:1fr}
}

/* ── subpage components ───────────────────────────────────────────────────── */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);margin-top:2.2rem}
.card{background:var(--bg);padding:1.8rem 1.9rem}
.card .u{font-family:var(--sans);font-size:.62rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:.9rem}
.card h3{font-size:1.16rem;margin-bottom:.55rem}
.card p{font-size:.94rem;color:var(--muted);line-height:1.6}
.card p b{color:var(--ink);font-weight:600}

.faq{margin-top:2.2rem;max-width:880px}
.faq details{border-top:1px solid var(--line)}
.faq details:last-of-type{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:1.4rem 0;font-family:var(--serif);font-size:1.2rem;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--sans);font-size:1.5rem;font-weight:300;line-height:1;color:var(--muted);transition:transform .2s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 0 1.5rem;color:var(--muted);font-size:.98rem;line-height:1.66;max-width:72ch}
.faq .a b{color:var(--ink);font-weight:600}

.tbl{width:100%;border-collapse:collapse;margin-top:2rem;font-size:.92rem}
.tbl caption{text-align:left;font-size:.85rem;color:var(--muted);margin-bottom:1rem;caption-side:top;line-height:1.5}
.tbl th{text-align:left;font-family:var(--sans);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);font-weight:600;padding:.7rem .9rem;border-bottom:1px solid var(--ink)}
.tbl td{padding:.85rem .9rem;border-bottom:1px solid var(--line);color:var(--muted);vertical-align:top}
.tbl td:first-child{padding-left:0}.tbl th:first-child{padding-left:0}
.tbl td b{color:var(--ink);font-weight:600}
.tbl .mono-num{font-variant-numeric:tabular-nums;font-family:var(--sans)}

.kv{margin-top:2rem;border-top:1px solid var(--ink)}
.kv-row{display:grid;grid-template-columns:11rem 1fr;gap:1.5rem;padding:1.3rem 0;border-bottom:1px solid var(--line)}
.kv-row .k{font-family:var(--serif);font-size:1.08rem;color:var(--ink)}
.kv-row .v{color:var(--muted);font-size:.96rem;line-height:1.6}
.kv-row .v b{color:var(--ink);font-weight:600}
@media(max-width:640px){.kv-row{grid-template-columns:1fr;gap:.4rem}}

.pillars-list{margin-top:2rem;border-top:1px solid var(--ink)}
.pl-item{padding:1.4rem 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:2.4rem 1fr;gap:1.2rem}
.pl-item .pi{font-family:var(--serif);color:var(--faint)}
.pl-item h3{font-size:1.14rem;margin-bottom:.35rem}
.pl-item p{color:var(--muted);font-size:.95rem;line-height:1.6}
.cta-band{border-top:1px solid var(--ink);border-bottom:1px solid var(--line);padding:clamp(2.5rem,5vw,4rem) 0;margin-top:clamp(2rem,4vw,3rem)}
.cta-band h2{max-width:20ch}
.cta-band p{color:var(--muted);margin-top:1rem;max-width:52ch}
.cta-band .row{margin-top:1.8rem;display:flex;gap:1.5rem;align-items:center;flex-wrap:wrap}

/* ── contact form ─────────────────────────────────────────────────────────── */
.form{margin-top:2.4rem;max-width:660px}
.form .grid2{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
.field{display:flex;flex-direction:column;gap:.45rem;margin-bottom:1.1rem}
.field label{font-family:var(--sans);font-size:.68rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.field label .rq{color:var(--green-deep)}
.f-in,.sel,.area{font-family:var(--sans);font-size:.96rem;color:var(--ink);background:var(--bg);border:1px solid var(--line-2);
  padding:.82rem .9rem;width:100%;transition:border-color .15s var(--ease)}
.f-in::placeholder,.area::placeholder{color:var(--faint)}
.f-in:focus,.sel:focus,.area:focus{outline:none;border-color:var(--ink)}
.area{min-height:130px;resize:vertical;line-height:1.55}
.sel{appearance:none;-webkit-appearance:none;cursor:pointer;padding-right:2.4rem;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' fill='none' stroke='%236a6a6f' stroke-width='1.5'/></svg>");
  background-repeat:no-repeat;background-position:right .95rem center}
.form-actions{display:flex;align-items:center;gap:1.4rem;margin-top:.3rem;flex-wrap:wrap}
.form-status{font-size:.88rem;font-weight:500;color:var(--green-deep)}
.form-status.err{color:#b23b3b}
@media(max-width:560px){.form .grid2{grid-template-columns:1fr;gap:0}}

/* ── v8: nav Standard accent (sharp green) + paper link accent ─────────────── */
.nav a.std{background:var(--green);color:#fff;padding:.5rem .85rem;font-weight:600}
.nav a.std:hover{background:var(--green-deep);color:#fff}
[data-theme="dark"] .nav a.std{color:#0b0b0c}
[data-theme="dark"] .nav a.std:hover{color:#0b0b0c}
@media(max-width:900px){.nav a.std{padding:.95rem clamp(1.25rem,5vw,3rem)}}
.paper .go{color:var(--green-deep)}
.paper:hover .go{color:var(--green)}
.paper:hover{box-shadow:inset 3px 0 0 var(--green)}