/* ============================================================
   Dynamic Navigator — HERS
   Light + dark themes. Figures always render on a dark canvas
   so the diagram artwork reads identically in both.
   ============================================================ */

:root{
  color-scheme: light dark;

  /* ---- LIGHT PALETTE (the default) ---- */
  --ground:#F3F7F7;
  --surface:#FFFFFF;
  --surface-2:#EDF3F3;
  --line:#D3E0E0;
  --line-soft:#E2EBEB;

  --ink:#0E1A1E;
  --ink-2:#3A4C53;
  --ink-muted:#5E7076;
  --ink-faint:#7C8D92;

  --accent:#0E7C66;
  --accent-ink:#FFFFFF;
  --accent-deep:#0B6152;

  --shadow:0 1px 2px rgba(14,26,30,.05), 0 4px 16px rgba(14,26,30,.05);

  /* ---- FIGURE CANVAS — identical in both themes ---- */
  --fig-bg:#0B1113;
  --fig-line:#1E2B30;
  --fig-ink:#E6EDF0;
  --fig-ink-2:#B6C4CA;
  --fig-faint:#8A9AA1;
  --fig-accent:#34D3AF;

  /* series colours (validated; used inside figures only) */
  --s-hydraulic:#12A88C;
  --s-kinetic:#4A93E8;
  --s-thermal:#C2801F;

  --maxw:1120px;
  --figmax:1400px;
  --prose:68ch;

  --step--1:0.875rem;
  --step-0:1.125rem;
  --step-1:1.3rem;
  --step-2:1.6rem;
  --step-3:2.1rem;
  --step-4:2.8rem;
  --step-5:clamp(2.3rem,4.4vw,3.4rem);
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ground:#0A0F11;
    --surface:#10171A;
    --surface-2:#151F23;
    --line:#223036;
    --line-soft:#182328;
    --ink:#DDE6E9;
    --ink-2:#AFBEC4;
    --ink-muted:#8A9AA1;
    --ink-faint:#6C7D83;
    --accent:#34D3AF;
    --accent-ink:#04211B;
    --accent-deep:#12A88C;
    --shadow:0 1px 2px rgba(0,0,0,.3), 0 4px 18px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"]{
  --ground:#0A0F11;
  --surface:#10171A;
  --surface-2:#151F23;
  --line:#223036;
  --line-soft:#182328;
  --ink:#DDE6E9;
  --ink-2:#AFBEC4;
  --ink-muted:#8A9AA1;
  --ink-faint:#6C7D83;
  --accent:#34D3AF;
  --accent-ink:#04211B;
  --accent-deep:#12A88C;
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 4px 18px rgba(0,0,0,.35);
}

*,*::before,*::after{box-sizing:border-box;}

body{
  margin:0;
  background:var(--ground);
  color:var(--ink);
  font-family:"IBM Plex Sans","Segoe UI",system-ui,-apple-system,Helvetica,Arial,sans-serif;
  font-size:var(--step-0);
  line-height:1.78;
  letter-spacing:0.002em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{
  font-family:Archivo,"Helvetica Neue",Arial,sans-serif;
  font-weight:600;
  letter-spacing:-0.02em;
  line-height:1.16;
  text-wrap:balance;
  margin:0;
  color:var(--ink);
}
p{margin:0;}
a{color:var(--accent);text-decoration:none;}
a:hover{text-decoration:underline;}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px;}

.mono{font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:20px;}
.prose{max-width:var(--prose);}
.prose p + p{margin-top:1em;}

.eyebrow{
  font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-size:0.74rem;letter-spacing:0.16em;text-transform:uppercase;
  color:var(--accent);margin:0;font-weight:500;
}
.eyebrow--muted{color:var(--ink-faint);}

section.band{padding-block:clamp(56px,7vw,104px);border-top:1px solid var(--line-soft);}
section.band:first-of-type{border-top:0;}
.band__head{display:flex;flex-direction:column;gap:14px;margin-bottom:38px;}
.band__head h2{font-size:var(--step-3);}
.band__head .lede{color:var(--ink-2);max-width:62ch;}

/* ---------- header ---------- */
header.site{
  position:sticky;top:0;z-index:40;
  background:color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.site__inner{
  max-width:var(--maxw);margin-inline:auto;padding:12px 20px;
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);}
.brand:hover{text-decoration:none;}
.brand__name{font-family:Archivo,sans-serif;font-weight:700;font-size:1rem;letter-spacing:-0.01em;line-height:1.1;}
.brand__sub{font-family:"IBM Plex Mono",monospace;font-size:0.64rem;letter-spacing:0.15em;text-transform:uppercase;color:var(--ink-faint);}
nav.site__nav{display:flex;gap:18px;flex-wrap:wrap;margin-left:auto;}
nav.site__nav a{
  font-family:"IBM Plex Mono",monospace;font-size:0.76rem;letter-spacing:0.05em;
  color:var(--ink-2);text-transform:uppercase;
}
nav.site__nav a:hover{color:var(--accent);text-decoration:none;}
nav.site__nav a.is-active{color:var(--accent);}
nav.site__nav a.is-active::after{content:"";display:block;height:1px;background:var(--accent);margin-top:4px;}

.btn{
  display:inline-block;font-family:Archivo,sans-serif;font-weight:600;font-size:0.9rem;
  padding:10px 17px;border-radius:3px;
  background:var(--accent);color:var(--accent-ink);border:1px solid var(--accent);
}
.btn:hover{filter:brightness(1.08);text-decoration:none;}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn--ghost:hover{background:var(--surface-2);border-color:var(--accent);color:var(--accent);filter:none;}

.themetoggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:3px;cursor:pointer;
  background:transparent;border:1px solid var(--line);color:var(--ink-2);
  padding:0;
}
.themetoggle:hover{border-color:var(--accent);color:var(--accent);}
.themetoggle svg{width:17px;height:17px;display:block;}
.themetoggle .i-sun{display:none;}
:root[data-theme="dark"] .themetoggle .i-sun{display:block;}
:root[data-theme="dark"] .themetoggle .i-moon{display:none;}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .themetoggle .i-sun{display:block;}
  :root:not([data-theme="light"]) .themetoggle .i-moon{display:none;}
}

/* ---------- hero ---------- */
.hero{padding-block:clamp(44px,6vw,80px) clamp(38px,5vw,60px);}
.hero__grid{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;}
.hero__text{max-width:70ch;}
.hero h1{font-size:var(--step-5);font-weight:700;letter-spacing:-0.032em;margin-top:18px;}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero__lede{margin-top:20px;color:var(--ink-2);font-size:1.16rem;max-width:54ch;}
.hero__cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px;}

.chips{display:grid;grid-template-columns:repeat(auto-fit,minmax(146px,1fr));margin-top:34px;border-top:1px solid var(--line);}
.chip{padding:16px 18px 14px 0;border-right:1px solid var(--line-soft);}
.chip + .chip{padding-left:18px;}
.chip:last-child{border-right:0;}
.chip__v{font-family:Archivo,sans-serif;font-weight:700;font-size:1.6rem;letter-spacing:-0.025em;color:var(--ink);font-variant-numeric:tabular-nums;}
.chip__v span{font-size:0.84rem;font-weight:500;color:var(--ink-muted);margin-left:3px;}
.chip__k{font-family:"IBM Plex Mono",monospace;font-size:0.68rem;letter-spacing:0.11em;text-transform:uppercase;color:var(--ink-faint);margin-top:4px;}

/* ============================================================
   FIGURES — wider than the text column, dark canvas, zoomable
   ============================================================ */
figure{margin:0;}
.fig{
  background:var(--fig-bg);
  border:1px solid var(--fig-line);
  border-radius:5px;
  padding:26px 26px 18px;
  overflow-x:auto;
  box-shadow:var(--shadow);
}
/* let figures break out past the prose column on wide screens */
.figwide{
  width:min(var(--figmax), calc(100vw - 40px));
  margin-inline:auto;
  position:relative;
  left:50%;
  transform:translateX(-50%);
}
.fig svg{display:block;width:100%;max-width:100%;height:auto;min-width:900px;}
.fig figcaption{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--fig-line);
  font-size:0.94rem;color:var(--fig-ink-2);line-height:1.68;min-width:0;
  max-width:88ch;
}
.fig figcaption b{color:var(--fig-ink);font-weight:600;}


/* diagram type — fixed to the dark canvas, never theme-dependent */
.d-label{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:12px;fill:var(--fig-ink-2);}
.d-label--sm{font-size:10.5px;fill:var(--fig-faint);letter-spacing:0.04em;}
.d-title{font-family:Archivo,sans-serif;font-size:14px;font-weight:600;fill:var(--fig-ink);}
.d-box{fill:#151F23;stroke:var(--fig-line);stroke-width:1;}
.d-stroke{stroke:var(--fig-faint);stroke-width:1.4;fill:none;}
.d-num{font-family:"IBM Plex Mono",monospace;font-size:12px;fill:var(--fig-accent);}


/* ============================================================
   MEDIA SLOTS — for photography and video you supply
   ============================================================ */
.mediagrid{display:grid;gap:18px;}
@media(min-width:760px){.mediagrid--2{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1000px){.mediagrid--3{grid-template-columns:repeat(3,minmax(0,1fr));}}

.media{
  border:1px dashed var(--line);
  border-radius:5px;
  background:var(--surface-2);
  overflow:hidden;
  display:flex;flex-direction:column;
}
.media__frame{
  aspect-ratio:16/10;
  max-width:100%;
  display:flex;align-items:center;justify-content:center;
  background:
    repeating-linear-gradient(45deg,
      color-mix(in srgb, var(--line-soft) 60%, transparent) 0 10px,
      transparent 10px 20px);
  position:relative;
}
.media__frame img,.media__frame video{width:100%;height:100%;object-fit:cover;display:block;}
.media__frame iframe{width:100%;height:100%;border:0;display:block;}
.media__badge{
  font-family:"IBM Plex Mono",monospace;font-size:0.68rem;letter-spacing:0.12em;
  text-transform:uppercase;color:var(--ink-faint);
  border:1px solid var(--line);border-radius:2px;padding:5px 10px;
  background:var(--surface);
}
.media__cap{padding:14px 16px;font-size:0.9rem;color:var(--ink-2);line-height:1.6;}
.media__cap b{color:var(--ink);font-weight:600;display:block;margin-bottom:3px;}

/* a filled slot loses the dashed "empty" treatment */
.media.is-filled{border-style:solid;background:var(--surface);}
.media.is-filled .media__frame{background:var(--surface-2);}

.videoslot .media__frame{aspect-ratio:16/9;}

/* ---------- filled slots: schematic illustrations ---------- */
.media.is-filled .media__frame{background:var(--fig-bg);}
.media__frame > svg{display:block;width:100%;height:100%;max-width:100%;min-width:0;}

/* ---------- click-to-play video facade ---------- */
.vfacade{
  position:absolute;inset:0;width:100%;height:100%;
  padding:0;border:0;margin:0;display:block;
  background:var(--fig-bg);cursor:pointer;
}
.vfacade__art{display:block;width:100%;height:100%;min-width:0;}
.vfacade__play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:72px;height:72px;border-radius:50%;
  background:rgba(8,14,16,0.74);border:2px solid var(--fig-accent);
  display:flex;align-items:center;justify-content:center;
  transition:transform 0.15s ease, background 0.15s ease;
}
.vfacade__play::after{
  content:"";margin-left:6px;
  border-left:20px solid var(--fig-accent);
  border-top:13px solid transparent;border-bottom:13px solid transparent;
}
.vfacade:hover .vfacade__play,
.vfacade:focus-visible .vfacade__play{transform:translate(-50%,-50%) scale(1.07);background:rgba(8,14,16,0.9);}
.vfacade:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;}
.media__cap a{color:var(--accent);}

/* ---------- pathway sections ---------- */
.pathway{border-top:1px solid var(--line-soft);padding-top:40px;margin-top:46px;}
.pathway:first-of-type{border-top:0;padding-top:0;margin-top:0;}
.pathway__head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:8px;}
.pathway__tag{
  font-family:"IBM Plex Mono",monospace;font-size:0.72rem;letter-spacing:0.12em;text-transform:uppercase;
  padding:4px 10px;border-radius:2px;border:1px solid currentColor;font-weight:500;
}
.t-kinetic{color:#2F7FD4;}
.t-hydraulic{color:#0B8A73;}
.t-thermal{color:#9A6512;}
:root[data-theme="dark"] .t-kinetic{color:#4A93E8;}
:root[data-theme="dark"] .t-hydraulic{color:#12A88C;}
:root[data-theme="dark"] .t-thermal{color:#C2801F;}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .t-kinetic{color:#4A93E8;}
  :root:not([data-theme="light"]) .t-hydraulic{color:#12A88C;}
  :root:not([data-theme="light"]) .t-thermal{color:#C2801F;}
}
.pathway h3{font-size:var(--step-2);}
.pathway__body{display:grid;gap:30px;margin-top:22px;}
@media(min-width:900px){
  .pathway__body{grid-template-columns:minmax(0,1.25fr) minmax(0,0.75fr);align-items:start;gap:40px;}
  .pathway__body > figure{grid-column:1 / -1;}
  .pathway__body > .mediagrid{grid-column:1 / -1;}
}
.pathway__side .spec{margin-top:0;}

.spec{border-top:1px solid var(--line);margin-top:24px;}
.spec dl{display:grid;grid-template-columns:auto 1fr;gap:0;margin:0;}
.spec dt,.spec dd{
  padding:10px 0;border-bottom:1px solid var(--line-soft);margin:0;
  font-family:"IBM Plex Mono",monospace;font-size:0.82rem;line-height:1.5;
}
.spec dt{color:var(--ink-faint);padding-right:22px;letter-spacing:0.03em;}
.spec dd{color:var(--ink);text-align:right;font-variant-numeric:tabular-nums;}

.eq{
  font-family:"IBM Plex Mono",monospace;font-size:0.88rem;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);
  padding:14px 18px;margin-top:18px;border-radius:0 3px 3px 0;line-height:1.85;
  overflow-x:auto;
}
.eq b{color:var(--accent);font-weight:600;}

/* ---------- cards ---------- */
.drivers{display:grid;gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:5px;overflow:hidden;}
@media(min-width:720px){.drivers{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1040px){.drivers{grid-template-columns:repeat(4,minmax(0,1fr));}}
.driver{background:var(--surface);padding:26px 22px 28px;display:flex;flex-direction:column;gap:10px;}
.driver__k{font-family:"IBM Plex Mono",monospace;font-size:0.68rem;letter-spacing:0.13em;text-transform:uppercase;color:var(--accent);font-weight:500;}
.driver h3{font-size:1.1rem;letter-spacing:-0.012em;}
.driver p{font-size:0.95rem;color:var(--ink-2);line-height:1.66;}
.driver .when{
  margin-top:auto;padding-top:12px;font-family:"IBM Plex Mono",monospace;font-size:0.73rem;
  color:var(--ink-faint);border-top:1px solid var(--line-soft);
}

/* ---------- tables ---------- */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:5px;background:var(--surface);box-shadow:var(--shadow);}
table{border-collapse:collapse;width:100%;min-width:600px;font-size:0.95rem;}
caption{text-align:left;padding:18px 20px 0;font-family:"IBM Plex Mono",monospace;font-size:0.72rem;letter-spacing:0.13em;text-transform:uppercase;color:var(--ink-faint);}
th,td{padding:13px 20px;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top;}
thead th{
  font-family:"IBM Plex Mono",monospace;font-size:0.72rem;letter-spacing:0.08em;text-transform:uppercase;
  color:var(--ink-faint);font-weight:400;border-bottom:1px solid var(--line);
}
td.num,th.num{text-align:right;font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums;white-space:nowrap;}
tbody tr:last-child td{border-bottom:0;}
tr.total td{border-top:1px solid var(--line);background:var(--surface-2);font-weight:600;color:var(--ink);}
tr.total td.num{font-weight:500;color:var(--accent);font-size:1.02rem;}
.swatch{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:9px;vertical-align:baseline;}

/* ---------- esg ---------- */
.esg{display:grid;gap:18px;}
@media(min-width:880px){.esg{grid-template-columns:repeat(3,minmax(0,1fr));}}
.esg__col{background:var(--surface);border:1px solid var(--line);border-radius:5px;padding:26px 24px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow);}
.esg__letter{font-family:Archivo,sans-serif;font-weight:700;font-size:2.3rem;line-height:1;color:var(--accent);letter-spacing:-0.04em;}
.esg__col h3{font-size:1.1rem;}
.esg__col ul{margin:0;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:12px;}
.esg__col li{font-size:0.95rem;color:var(--ink-2);line-height:1.64;padding-left:17px;position:relative;}
.esg__col li::before{content:"";position:absolute;left:0;top:0.68em;width:7px;height:1px;background:var(--accent);}
.esg__col li b{color:var(--ink);font-weight:600;}
.frameworks{margin-top:auto;padding-top:15px;border-top:1px solid var(--line-soft);display:flex;flex-wrap:wrap;gap:6px;}
.fw{font-family:"IBM Plex Mono",monospace;font-size:0.7rem;letter-spacing:0.04em;color:var(--ink-muted);border:1px solid var(--line);border-radius:2px;padding:3px 8px;}

/* ---------- stages ---------- */
.stages{display:grid;gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:5px;overflow:hidden;}
@media(min-width:860px){.stages{grid-template-columns:repeat(4,minmax(0,1fr));}}
.stage{background:var(--surface);padding:26px 22px;display:flex;flex-direction:column;gap:10px;}
.stage__n{font-family:"IBM Plex Mono",monospace;font-size:0.76rem;color:var(--accent);letter-spacing:0.1em;font-weight:500;}
.stage h3{font-size:1.05rem;}
.stage p{font-size:0.93rem;color:var(--ink-2);line-height:1.64;}
.stage .dur{margin-top:auto;padding-top:12px;border-top:1px solid var(--line-soft);font-family:"IBM Plex Mono",monospace;font-size:0.73rem;color:var(--ink-faint);}

/* ---------- note ---------- */
.note{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid #9A6512;
  border-radius:0 5px 5px 0;padding:22px 24px;box-shadow:var(--shadow);
}
:root[data-theme="dark"] .note{border-left-color:#C2801F;}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .note{border-left-color:#C2801F;}}
.note h4{font-size:0.98rem;margin-bottom:9px;}
.note p,.note li{font-size:0.92rem;color:var(--ink-muted);line-height:1.68;}
.note ul{margin:9px 0 0;padding-left:19px;display:flex;flex-direction:column;gap:6px;}

/* ---------- contact ---------- */
.contact{display:grid;gap:30px;}
@media(min-width:880px){.contact{grid-template-columns:minmax(0,1.1fr) minmax(0,0.9fr);gap:48px;}}
.contact__card{background:var(--surface);border:1px solid var(--line);border-radius:5px;padding:28px 26px;box-shadow:var(--shadow);}
.contact__row{display:flex;gap:16px;padding:13px 0;border-bottom:1px solid var(--line-soft);align-items:baseline;}
.contact__row:last-child{border-bottom:0;}
.contact__k{font-family:"IBM Plex Mono",monospace;font-size:0.71rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--ink-faint);min-width:88px;}
.contact__v{font-size:0.98rem;color:var(--ink);}

/* ---------- page furniture ---------- */
.pagehead{padding-block:clamp(38px,5vw,66px) 0;}
.pagehead .eyebrow{margin-bottom:14px;}
.pagehead h1{font-size:var(--step-4);letter-spacing:-0.03em;}
.pagehead h1 em{font-style:normal;color:var(--accent);}
.pagehead .lede{color:var(--ink-2);max-width:62ch;margin-top:16px;font-size:1.13rem;}
.pagehead + section.band{border-top:0;padding-top:clamp(30px,3.6vw,46px);}

.pagenav{max-width:var(--maxw);margin-inline:auto;display:grid;gap:1px;background:var(--line-soft);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
@media(min-width:720px){.pagenav{grid-template-columns:repeat(2,minmax(0,1fr));}}
.pagenav__item{display:flex;flex-direction:column;gap:6px;background:var(--ground);padding:28px 20px;text-decoration:none;}
.pagenav__item:hover{background:var(--surface);text-decoration:none;}
.pagenav__item--next{align-items:flex-end;text-align:right;}
.pagenav__k{font-family:"IBM Plex Mono",monospace;font-size:0.7rem;letter-spacing:0.13em;text-transform:uppercase;color:var(--ink-faint);}
.pagenav__t{font-family:Archivo,sans-serif;font-weight:600;font-size:1.08rem;color:var(--ink);letter-spacing:-0.015em;}
.pagenav__item:hover .pagenav__t{color:var(--accent);}

.pagecards{display:grid;gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:5px;overflow:hidden;}
@media(min-width:720px){.pagecards{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1040px){.pagecards{grid-template-columns:repeat(3,minmax(0,1fr));}}
.pagecard{background:var(--surface);padding:28px 22px;display:flex;flex-direction:column;gap:10px;text-decoration:none;}
.pagecard:hover{background:var(--surface-2);text-decoration:none;}
.pagecard__k{font-family:"IBM Plex Mono",monospace;font-size:0.68rem;letter-spacing:0.13em;text-transform:uppercase;color:var(--accent);font-weight:500;}
.pagecard h3{font-size:1.12rem;color:var(--ink);}
.pagecard p{font-size:0.95rem;color:var(--ink-2);line-height:1.64;}
.pagecard__go{margin-top:auto;padding-top:13px;border-top:1px solid var(--line-soft);font-family:"IBM Plex Mono",monospace;font-size:0.73rem;color:var(--ink-faint);}
.pagecard:hover .pagecard__go{color:var(--accent);}

/* ---------- footer ---------- */
footer.site{border-top:1px solid var(--line-soft);padding-block:44px 60px;background:var(--surface);}
footer.site .cols{display:grid;gap:26px;}
@media(min-width:800px){footer.site .cols{grid-template-columns:minmax(0,1.2fr) minmax(0,2fr);gap:48px;}}
footer.site p,footer.site li{font-size:0.88rem;color:var(--ink-muted);line-height:1.68;}
footer.site h4{font-family:"IBM Plex Mono",monospace;font-size:0.7rem;letter-spacing:0.13em;text-transform:uppercase;color:var(--ink-muted);font-weight:400;margin-bottom:11px;}
footer.site ol{margin:0;padding-left:19px;display:flex;flex-direction:column;gap:7px;}
footer.site a{color:var(--ink-2);}

/* ---------- chart tooltip ---------- */
#tip{
  position:fixed;z-index:80;pointer-events:none;opacity:0;transition:opacity .09s;
  background:#0A1214;border:1px solid #2A3A40;border-radius:3px;padding:8px 11px;
  font-family:"IBM Plex Mono",monospace;font-size:0.76rem;color:#E6EDF0;
  box-shadow:0 6px 20px rgba(0,0,0,0.5);white-space:nowrap;line-height:1.55;
}
#tip.on{opacity:1;}
#tip .t-k{color:#8A9AA1;}

.defs-hidden{position:absolute;width:0;height:0;overflow:hidden;}
.skip{position:absolute;left:-9999px;}
.skip:focus{left:12px;top:12px;z-index:90;background:var(--accent);color:var(--accent-ink);padding:9px 15px;border-radius:3px;}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;}}


/* ============================================================
   v5 — economics layout, KPI tiles, cost table, incentives
   ============================================================ */
.split{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;margin-top:40px;}
.split>*{min-width:0;}
@media(min-width:980px){.split{grid-template-columns:minmax(0,1.15fr) minmax(0,0.85fr);gap:48px;align-items:start;}}

.fine{font-size:0.82rem;color:var(--ink-faint);line-height:1.65;margin-top:14px;max-width:70ch;}
.fine a{color:var(--accent);}

/* KPI strip */
.kpis{display:grid;gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:6px;overflow:hidden;}
@media(min-width:640px){.kpis{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1000px){.kpis{grid-template-columns:repeat(4,minmax(0,1fr));}}
.kpi{background:var(--surface);padding:22px 22px 20px;display:flex;flex-direction:column;gap:5px;position:relative;}
.kpi::before{content:"";position:absolute;left:0;top:0;right:0;height:2px;background:var(--line);}
.kpi--accent::before{background:var(--accent);}
.kpi__v{font-family:Archivo,sans-serif;font-weight:700;font-size:1.9rem;letter-spacing:-0.03em;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.05;}
.kpi__v span{font-size:0.95rem;font-weight:500;color:var(--ink-muted);margin-left:4px;letter-spacing:0;}
.kpi--accent .kpi__v{color:var(--accent);}
.kpi__k{font-family:"IBM Plex Mono",monospace;font-size:0.7rem;letter-spacing:0.11em;text-transform:uppercase;color:var(--ink-2);margin-top:6px;}
.kpi__s{font-size:0.84rem;color:var(--ink-faint);}

/* cost table */
.costtable{min-width:520px;}
.costtable th:nth-child(2){width:150px;}
.costtable tr.grp td{background:var(--surface-2);font-family:"IBM Plex Mono",monospace;font-size:0.72rem;letter-spacing:0.1em;text-transform:uppercase;color:var(--ink-2);padding-block:9px;}
.costtable tr.grp td.num{color:var(--ink);font-size:0.86rem;letter-spacing:0;text-transform:none;}
.costtable td.item{padding-left:32px;color:var(--ink-2);}
.costtable td.share{padding-block:0;vertical-align:middle;white-space:nowrap;}
.costtable .bar{display:inline-block;height:8px;border-radius:2px;background:var(--accent);opacity:0.75;vertical-align:middle;max-width:calc(100% - 42px);}
.costtable .pct{display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:0.72rem;color:var(--ink-faint);margin-left:8px;vertical-align:middle;min-width:30px;}

/* savings composition */
.savings{display:grid;gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:6px;overflow:hidden;margin-top:14px;}
.saving{background:var(--surface);padding:16px 18px;display:grid;grid-template-columns:auto 1fr;column-gap:16px;row-gap:3px;align-items:baseline;}
.saving__v{font-family:Archivo,sans-serif;font-weight:700;font-size:1.25rem;letter-spacing:-0.02em;color:var(--ink);font-variant-numeric:tabular-nums;grid-row:span 2;align-self:start;min-width:92px;}
.saving__k{font-family:"IBM Plex Mono",monospace;font-size:0.7rem;letter-spacing:0.1em;text-transform:uppercase;color:var(--accent);}
.saving__p{font-size:0.88rem;color:var(--ink-2);line-height:1.6;}

/* incentives */
.incentives{display:grid;gap:18px;}
@media(min-width:720px){.incentives{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1100px){.incentives{grid-template-columns:repeat(4,minmax(0,1fr));}}
.inc{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:24px 22px 22px;display:flex;flex-direction:column;gap:10px;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:border-color .15s ease, transform .15s ease;}
.inc::before{content:"";position:absolute;left:0;top:0;right:0;height:2px;background:var(--accent);opacity:0.7;}
.inc:hover{border-color:var(--accent);transform:translateY(-2px);}
.inc__k{font-family:"IBM Plex Mono",monospace;font-size:0.68rem;letter-spacing:0.13em;text-transform:uppercase;color:var(--ink-faint);}
.inc h3{font-size:1.1rem;letter-spacing:-0.012em;line-height:1.25;}
.inc__worth{font-family:"IBM Plex Mono",monospace;font-size:0.8rem;color:var(--accent);line-height:1.5;}
.inc p:not(.inc__worth){font-size:0.93rem;color:var(--ink-2);line-height:1.64;}
.inc__cond{margin-top:auto;padding-top:12px;border-top:1px solid var(--line-soft);font-family:"IBM Plex Mono",monospace;font-size:0.72rem;color:var(--ink-faint);line-height:1.6;}

/* ============================================================
   v5 — general polish
   ============================================================ */
.hero{position:relative;isolation:isolate;}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(60% 55% at 78% 30%, color-mix(in srgb, var(--accent) 13%, transparent) 0%, transparent 70%),
    linear-gradient(to right, color-mix(in srgb, var(--line-soft) 55%, transparent) 1px, transparent 1px) 0 0/48px 48px,
    linear-gradient(to bottom, color-mix(in srgb, var(--line-soft) 55%, transparent) 1px, transparent 1px) 0 0/48px 48px;
  -webkit-mask-image:linear-gradient(to bottom, #000 0%, #000 60%, transparent 100%);
  mask-image:linear-gradient(to bottom, #000 0%, #000 60%, transparent 100%);
}
.hero h1{line-height:1.06;}
.driver,.stage,.pagecard,.esg__col,.media,.contact__card,.tablewrap,.fig,.note{border-radius:6px;}
.driver{position:relative;transition:background .15s ease;}
.driver::before{content:"";position:absolute;left:0;top:0;right:0;height:2px;background:var(--accent);opacity:0;transition:opacity .15s ease;}
.driver:hover::before{opacity:0.8;}
.pagecard{transition:background .15s ease;}
.media{box-shadow:var(--shadow);}
.band__head .lede{font-size:1.1rem;line-height:1.6;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;}
.eyebrow::before{content:"";width:18px;height:1px;background:currentColor;opacity:0.7;}
.pagehead .eyebrow::before,.hero .eyebrow::before{display:none;}
.btn{border-radius:4px;padding:11px 18px;transition:transform .12s ease, filter .12s ease;}
.btn:hover{transform:translateY(-1px);}
footer.site{background:var(--surface);}
footer.site .cols{padding-top:6px;}

/* ---------- contact: photo feature ---------- */
.feature{display:grid;gap:28px;align-items:start;}
@media(min-width:900px){.feature{grid-template-columns:minmax(0,0.9fr) minmax(0,1.1fr);gap:40px;}}
.feature__photo{background:var(--surface);border:1px solid var(--line);border-radius:6px;overflow:hidden;box-shadow:var(--shadow);}
.feature__photo img{display:block;width:100%;height:auto;}
.feature__photo figcaption{padding:14px 16px;font-size:0.9rem;color:var(--ink-2);line-height:1.6;}
.feature__photo figcaption b{color:var(--ink);font-weight:600;display:block;margin-bottom:3px;}
.feature__side{display:flex;flex-direction:column;gap:26px;}
.feature__side .media{max-width:520px;}