/* Clarence Maestone — site styles
   Fonts are served from this site (no third-party requests). */
@font-face{font-family:'Instrument Sans';src:url(../fonts/instrument-sans-400.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Instrument Sans';src:url(../fonts/instrument-sans-500.woff2) format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'Instrument Sans';src:url(../fonts/instrument-sans-600.woff2) format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'Source Serif 4';src:url(../fonts/source-serif-4-var.woff2) format('woff2');font-weight:200 900;font-display:swap}
@font-face{font-family:'IBM Plex Sans';src:url(../fonts/ibm-plex-sans-300.woff2) format('woff2');font-weight:300;font-display:swap}
@font-face{font-family:'IBM Plex Sans';src:url(../fonts/ibm-plex-sans-700.woff2) format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'Cormorant Garamond';src:url(../fonts/cormorant-garamond-700.woff2) format('woff2');font-weight:700;font-display:swap}

:root{
  --ink:#0d1a22; --ink-2:#132631; --ink-3:#1b3341;
  --paper:#f5f6f3; --white:#ffffff; --stone:#e6eae9;
  --text:#16232a; --muted:#56656d; --soft:#7d8b92;
  --rule:#c8d0d2; --rule-2:#9fadb2;
  --on-ink:#e9eef0; --on-ink-2:#a9b8bf; --on-ink-3:#71858e; --ink-rule:rgba(169,184,191,.2);
  --copper:#b4532a; --copper-2:#d0743f;
  --sans:'Instrument Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --serif:'Source Serif 4',Georgia,'Times New Roman',serif;
  --max:1320px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{background:var(--paper);color:var(--text);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
:focus-visible{outline:2px solid var(--copper);outline-offset:4px}
::selection{background:var(--copper);color:var(--white)}
:root{--g:clamp(22px,4.2vw,80px)}
.wrap{max-width:calc(var(--max) + 2*var(--g));margin:0 auto;padding:0 var(--g)}
.skip{position:fixed;top:-100px;left:20px;z-index:200;background:var(--copper);color:var(--white);padding:12px 20px}
.skip:focus{top:12px}

/* ---------- type ---------- */
h1,h2,h3{font-weight:500;letter-spacing:-.022em}
h1{font-family:var(--sans);font-size:clamp(2.9rem,6.4vw,6.1rem);line-height:.98;max-width:14ch;color:var(--white)}
h2{font-family:var(--sans);font-size:clamp(2rem,3.6vw,3.15rem);line-height:1.04;max-width:20ch}
h3{font-family:var(--sans);font-size:1.22rem;line-height:1.25;letter-spacing:-.01em}
.kick{display:block;font-size:.84rem;font-weight:500;color:var(--copper);margin-bottom:22px;letter-spacing:.005em}
.on-ink .kick{color:var(--copper-2)}
.read{font-family:var(--serif);font-size:1.18rem;line-height:1.62;color:var(--muted);font-weight:350}
.read p+p{margin-top:18px}
.read b{color:var(--text);font-weight:500}

/* ---------- company name, top centre (no navigation bar); the Maestone Trajectory sign-in wordmark, a weight heavier ---------- */
.mark{position:fixed;top:clamp(22px,3.4vw,40px);left:50%;transform:translateX(-50%);z-index:100;padding-left:.32em;font-family:'Cormorant Garamond','Times New Roman',Georgia,serif;font-weight:700;font-size:clamp(1.75rem,2.7vw,3rem);letter-spacing:.32em;text-transform:uppercase;white-space:nowrap;color:var(--white);text-decoration:none}
.mark-ink{position:absolute;color:var(--text)}
@media(max-width:520px){.mark{font-size:1.3rem;letter-spacing:.24em;padding-left:.24em}}

/* ---------- hero ---------- */
.hstage{position:relative;height:230vh;height:230svh;background:var(--ink)}
.hero{position:sticky;top:0;background:var(--ink);color:var(--white);height:100vh;height:100svh;min-height:620px;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden}
.hcap{position:absolute;z-index:3;left:0;right:0;bottom:120px;opacity:0;pointer-events:none}
.hcap .k{display:block;font-size:.84rem;color:var(--copper-2);margin-bottom:12px}
.hcap p{font-family:var(--serif);font-weight:350;font-size:clamp(1.4rem,2.4vw,2.1rem);line-height:1.24;letter-spacing:-.01em;color:#fff;max-width:30ch}
@media(max-width:860px){.hcap{bottom:170px}}
@media(max-width:760px){.hcap{padding-bottom:40px}.hcap .hc-sub{font-size:.95rem}.hcap .hc-lede{font-size:1.06rem}}

/* gates screen (MT Energy, screen 2): the gates study from the first hero lab, on ink, pinned */
.gstage{position:relative;height:240vh;height:240svh;background:var(--ink)}
.gpin{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;color:var(--on-ink)}
#gates{position:absolute;inset:0;width:100%;height:100%}
.gtext{position:absolute;z-index:2;left:0;right:0;top:0;padding:150px var(--g) 0;pointer-events:none}
.gtext>div{max-width:470px}
.gtext h2{color:#fff}
.gtext .read{color:var(--on-ink-2);max-width:40ch;margin-top:20px;font-size:1.08rem}
.gtext .kick{color:var(--copper-2)}
.grail{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:0 var(--g) 44px}
.grail ol{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink-rule)}
.grail li{position:relative;padding:16px 24px 0 0;color:var(--on-ink-3);transition:color .4s}
.grail li::before{content:"";position:absolute;left:0;right:24px;top:-1px;height:2px;background:transparent;transition:background .4s}
.grail li .s{display:block;font-size:.8rem;margin-bottom:4px}
.grail li .t{font-size:1.05rem}
.grail li .d{display:block;margin-top:6px;font-size:.9rem;line-height:1.5;max-width:30ch;color:var(--on-ink-3)}
.grail li.done{color:var(--on-ink-2)}.grail li.done::before{background:var(--copper)}
.grail li.now{color:#fff}.grail li.now::before{background:var(--copper-2)}
.grail li.now .d{color:var(--on-ink-2)}
@media(max-width:860px){.gtext .read{display:none}.grail li .d{display:none}.grail li{padding-right:12px}.grail li .t{font-size:.95rem}}
@media(max-width:1100px){.gtext{padding-top:170px}}
@media(min-width:760px){.gtext{display:flex;justify-content:flex-end}}   /* text on the right, drawing on the left */
#chart{position:absolute;inset:0;width:100%;height:100%}
.hero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(180deg,rgba(13,26,34,0) 35%,rgba(13,26,34,.72) 78%,rgba(13,26,34,.9) 100%)}
.hero .wrap{position:relative;z-index:2;width:100%}
.hero-main{padding:170px 0 72px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px clamp(48px,6vw,120px);align-items:end}
@media(max-width:980px){.hero-main{grid-template-columns:1fr;padding-top:150px}}
@media(max-width:760px){.hero-main{padding:0 0 40px}.hero-side p{font-size:1.02rem}}
.hero-side p{font-family:var(--sans);font-size:1rem;line-height:1.5;letter-spacing:-.006em;font-weight:500;color:var(--white);max-width:30em;text-wrap:pretty}
.hero-side p+p{margin-top:.9em;font-weight:400;color:var(--on-ink-2)}
@media(min-width:981px){
  .hero-main h1{max-width:7em}
  .hero-side{width:19.5rem;padding-bottom:calc(clamp(2.9rem,6.4vw,6.1rem)*.137 - .44rem)}
}
.hero-side .acts{margin-top:32px;display:flex;gap:28px;align-items:center;flex-wrap:wrap}
.lnk{font-size:.95rem;text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:2px;opacity:.85}
.lnk:hover{opacity:1}

/* ---------- sections ---------- */
section{position:relative}
.s-pad{padding:128px 0}
@media(max-width:760px){.s-pad{padding:84px 0}}
.bg-white{background:var(--white)}
.bg-stone{background:var(--stone)}
.on-ink{background:var(--ink);color:var(--on-ink)}
.on-ink h2,.on-ink h3{color:var(--white)}
.on-ink .read{color:var(--on-ink-2)}
.on-ink .read b{color:var(--white)}
.split{display:grid;grid-template-columns:5fr 7fr;gap:40px clamp(48px,6vw,140px);align-items:start}
@media(max-width:980px){.split{grid-template-columns:1fr}}
.head{display:grid;grid-template-columns:5fr 7fr;gap:24px clamp(48px,6vw,140px);align-items:end;margin-bottom:72px}
@media(max-width:980px){.head{grid-template-columns:1fr;margin-bottom:48px}}
.head .read{max-width:56ch}

/* photographs: one grade for all of them so they sit in the palette; the brief shows until a file is placed */
.ph{position:relative;margin:0;overflow:hidden;background:#d5dbdb}
.ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.72) contrast(1.04) brightness(.98)}
.ph::after{content:"Photograph: " attr(data-brief);position:absolute;left:18px;bottom:14px;right:18px;font-size:.78rem;color:#6b7a80;letter-spacing:.01em}
.ph:has(img)::after{content:none}
/* thesis */
.statement{font-family:var(--serif);font-weight:400;font-size:clamp(2.2rem,4.4vw,3.9rem);line-height:1.08;letter-spacing:-.018em;color:var(--text);max-width:22ch}
.thesis-top{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:40px clamp(48px,6vw,120px);align-items:center}
.thesis-top .statement{max-width:17ch}
.ph-earth{background:var(--ink);aspect-ratio:3/2}
.ph-earth img{filter:saturate(.95) contrast(1.03)}
@media(max-width:860px){.thesis-top{grid-template-columns:1fr}.thesis-top .statement{max-width:22ch}.thesis-top+.figrow{margin-top:64px}}
.figrow{margin-top:88px;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--text)}
.figrow>div{padding:26px 32px 0 0}
.figrow>div+div{padding-left:32px;border-left:1px solid var(--rule)}
.figrow .v{font-family:var(--sans);font-weight:500;font-size:clamp(2.6rem,4.6vw,4rem);letter-spacing:-.03em;line-height:1}
.figrow .d{margin-top:12px;font-size:.95rem;color:var(--muted);max-width:30ch;line-height:1.5}
.figrow .src{font-size:.8rem;color:var(--soft);align-self:end}
.figrow .src a{text-decoration:none;border-bottom:1px solid var(--rule)}
@media(max-width:860px){.figrow{grid-template-columns:1fr}.figrow>div+div{padding-left:0;border-left:0;border-top:1px solid var(--rule);margin-top:24px}}
.thesis-body{margin-top:64px}

/* foundation */
.src5{list-style:none;border-top:1px solid var(--text)}
.src5 li{display:grid;grid-template-columns:44px 210px 1fr;gap:8px 28px;padding:26px 0 28px;border-bottom:1px solid var(--rule)}
.src5 .mk{width:34px;height:34px}
.src5 h3{font-size:1.25rem}
.src5 .own{display:block;font-size:.84rem;color:var(--muted);margin-top:4px}
.src5 p{font-family:var(--serif);font-size:1.06rem;line-height:1.6;color:var(--muted);font-weight:350}
.src5 li.key h3{color:var(--copper)}
@media(max-width:760px){.src5 li{grid-template-columns:44px 1fr}.src5 p{grid-column:2}}
.conv{margin-top:56px}
.conv svg{width:100%;max-width:440px;height:auto;display:block}
@media(max-width:980px){.conv{display:none}}
.note{margin-top:28px;font-size:.95rem;color:var(--muted);max-width:44ch;line-height:1.6}

/* instruments */
.inst{display:grid;grid-template-columns:repeat(3,1fr);gap:0 56px}
@media(max-width:980px){.inst{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.inst{grid-template-columns:1fr}}
.ins{border-top:1px solid var(--text);padding:28px 0 52px}
.ins .gl{height:58px;margin-bottom:26px}
.ins .gl svg{height:58px;width:auto;display:block}
.ins h3{font-size:1.32rem;margin-bottom:10px}
.ins p{font-size:.98rem;color:var(--muted);line-height:1.58}
.gi{stroke:#33444d} .gc{stroke:var(--copper)} .gf{fill:var(--copper)}
.full{margin-top:8px;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.full summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;padding:22px 0;font-size:.98rem;font-weight:500}
.full summary::-webkit-details-marker{display:none}
.full .pl{font-size:1.4rem;line-height:1;color:var(--copper);transition:transform .2s}
.full[open] .pl{transform:rotate(45deg)}
.grp{display:grid;grid-template-columns:repeat(3,1fr);gap:0 56px;padding:0 0 30px}
@media(max-width:980px){.grp{grid-template-columns:1fr}}
.grp h4{font-size:.84rem;font-weight:500;color:var(--copper);padding:14px 0 6px}
.grp dl div{padding:13px 0;border-top:1px solid var(--rule)}
.grp dt{font-size:.96rem;font-weight:500}
.grp dd{font-size:.9rem;color:var(--muted);margin-top:3px;line-height:1.5}

/* AI */

/* closing block: the firm, contact and the small print (light, compact) */
.close{padding:clamp(72px,8vw,120px) 0 40px;background:var(--paper);color:var(--text)}
.close-sm{padding-top:0}
.close-mail{display:inline-block;margin-top:30px;font-size:1.1rem;color:var(--text);text-decoration:none;border-bottom:1px solid var(--rule-2);padding-bottom:3px}
.close-mail:hover{border-color:var(--copper)}
.close-addr{margin-top:30px;font-size:.92rem;color:var(--muted);line-height:1.7}
.close-addr span{display:block;color:var(--soft);font-size:.82rem;margin-bottom:4px}
.fbot{margin-top:72px;padding-top:24px;border-top:1px solid var(--rule);display:flex;gap:20px 40px;flex-wrap:wrap;font-size:.8rem;color:var(--muted);line-height:1.6}
.close-sm .fbot{margin-top:0}

/* MT Energy wordmark: MT IBM Plex Sans 700 at 28, ENERGY IBM Plex Sans 300 at 9, left aligned; --k scales the pair */
.mt{--k:1;display:inline-flex;flex-direction:column;align-items:flex-start;line-height:1;color:#fff;font-family:'IBM Plex Sans',system-ui,sans-serif}
/* negative margins cancel each glyph's left side bearing (IBM Plex Sans: M bold .077em, E light .099em) so MT and ENERGY share one ink edge */
.mt-m{font-weight:700;font-size:calc(28px*var(--k));letter-spacing:.14em;margin-left:-.077em}
.mt-e{font-weight:300;font-size:calc(9px*var(--k));letter-spacing:.34em;margin-top:calc(4px*var(--k));margin-left:-.099em}
.mt-lg{--k:3}.mt-md{--k:2.4}.mt-sm{--k:1}
@media(max-width:760px){.mt-lg{--k:2}}
/* hero scroll state */
.hcap{bottom:auto;top:0;height:100%;display:flex;align-items:flex-end;padding-bottom:72px}
.hcap-grid{display:grid;grid-template-columns:auto 1fr;gap:28px 72px;align-items:end;width:100%}
.hcap .hc-lede{font-family:var(--serif);font-weight:350;font-size:clamp(1.12rem,1.45vw,1.32rem);line-height:1.45;color:#fff;max-width:52ch}
.hcap .hc-sub{margin-top:16px;font-size:1rem;line-height:1.6;color:var(--on-ink-2);max-width:56ch}
.hcap .lnk{display:inline-block;margin-top:22px;color:#fff}
@media(max-width:980px){.hcap-grid{grid-template-columns:1fr}}

/* MT Energy flow: three full-height screens, wider than the page column, navigation held in the left column */
.mt-ink{color:var(--text)}
.mtflow{position:relative;--rail:clamp(210px,16vw,290px);border-top:1px solid var(--rule)}
.mtflow>.mtb{background:var(--white)}
.mtrail-track{position:absolute;z-index:5;top:0;bottom:0;left:0;width:calc(var(--g) + var(--rail));pointer-events:none}
.mtrail{position:sticky;top:0;padding:64px 0 0 var(--g);pointer-events:auto}
.mtrail .mt{text-decoration:none;--k:1.15;transition:color .3s}
.mtsteps{list-style:none;margin-top:40px}
.mtsteps a{display:flex;align-items:baseline;gap:.3em;padding:.16em 0;font-family:var(--sans);font-weight:500;font-size:clamp(1.6rem,2.2vw,2.35rem);line-height:1.12;letter-spacing:-.028em;color:#a7b2b6;text-decoration:none;transition:color .3s}
.mtsteps a .n{font-size:.5em;letter-spacing:0;transform:translateY(-.8em)}
.mtsteps a:hover{color:var(--muted)}
.mtsteps a.on{color:var(--text)}
/* on the dark gates screen the same navigation reads in light */
.mtflow.on-gates .mtrail .mt-ink{color:#fff}
.mtflow.on-gates .mtsteps a{color:#4e626c}
.mtflow.on-gates .mtsteps a:hover{color:var(--on-ink-2)}
.mtflow.on-gates .mtsteps a.on{color:#fff}
.mtb{padding:120px var(--g) 120px calc(var(--g) + var(--rail) + clamp(32px,4vw,80px))}
.mtfull{min-height:100vh;min-height:100svh}
.mtflow [data-s]{scroll-margin-top:0}
.mthead{margin-bottom:72px}
#mt-gates .gtext,#mt-gates .grail{padding-left:calc(var(--g) + var(--rail) + clamp(32px,4vw,80px))}
.mtbar{display:none}
@media(max-width:1100px){
  .mtrail-track{display:none}
  .mtbar{display:block;position:sticky;top:0;z-index:30;padding:12px var(--g);background:var(--paper);border-bottom:1px solid var(--rule)}
  .mtbsteps{list-style:none;display:flex;gap:clamp(16px,4vw,40px)}
  .mtbsteps a{display:flex;align-items:baseline;gap:.25em;font-weight:500;font-size:clamp(1.05rem,2.6vw,1.5rem);letter-spacing:-.02em;color:#a7b2b6;text-decoration:none}
  .mtbsteps a .n{font-size:.6em;transform:translateY(-.6em)}
  .mtbsteps a.on{color:var(--text)}
  .mtb{padding:96px var(--g) 84px}
  #mt-gates .gtext,#mt-gates .grail{padding-left:var(--g)}
  .mtflow [data-s]{scroll-margin-top:54px}
}

/* AI at Clarence Maestone: one full screen, type and rules only */
.ai-screen{min-height:100vh;min-height:100svh;display:flex;padding:clamp(96px,13svh,168px) 0 clamp(48px,7svh,104px)}
/* statement on the left, research areas on the right; both start on the same line */
.ai-split{width:100%;display:grid;grid-template-columns:5fr 7fr;grid-template-rows:auto auto;column-gap:clamp(48px,6vw,140px);align-content:center}
.ai-k{grid-column:2;grid-row:1;font-size:.84rem;color:var(--on-ink-3);padding-bottom:16px}
.ai-split h2{grid-column:1;grid-row:2;align-self:start;margin-top:-.12em;font-size:clamp(2.2rem,3.6vw,3.5rem);line-height:1.06;max-width:13ch}
.ai-split ol{grid-column:2;grid-row:2;list-style:none;border-top:1px solid var(--on-ink-3)}
.ai-split li{padding:clamp(18px,2.8svh,30px) 0;border-bottom:1px solid var(--ink-rule);font-family:var(--serif);font-weight:350;font-size:clamp(1.2rem,1.7vw,1.6rem);line-height:1.2;letter-spacing:-.005em;color:var(--white);text-wrap:balance}
@media(max-width:980px){.ai-screen{display:block;padding:120px 0 84px}.ai-split{grid-template-columns:1fr}.ai-split h2{grid-column:1;grid-row:1;margin:0 0 56px}.ai-k{grid-column:1;grid-row:2}.ai-split ol{grid-column:1;grid-row:3}}

/* plain pages (privacy, not found) */
.page{padding:170px 0 120px;min-height:70vh}
.page h1{color:var(--text);font-size:clamp(2.4rem,4.6vw,3.6rem);max-width:18ch}
.page .read{margin-top:36px;max-width:68ch}
.page .read h2{font-size:1.3rem;margin:40px 0 10px;color:var(--text)}
.page .read p,.page .read li{font-size:1.06rem}
.page .read ul{padding-left:1.2em}
.page .lnk{display:inline-block;margin-top:40px;color:var(--text)}
.fbot a{color:inherit}