/* =============================================================
   AMI Biogas International AS — site stylesheet
   Hand-authored. No build step. Edit freely.
   Palette matches the AMI presentation deck.

     1. Fonts        2. Tokens       3. Base
     4. Layout       5. Nav          6. Components
     7. Sections     8. Responsive   9. Motion / print
   ============================================================= */

/* ---------- 1. Fonts ---------------------------------------- */
@font-face{font-family:"IBM Plex Sans";src:url("fonts/plex-sans-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("fonts/plex-sans-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("fonts/plex-sans-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("fonts/plex-mono-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}

/* ---------- 2. Tokens -------------------------------------- */
:root{
  --ami:        #085cce;   /* primary blue — matches the deck      */
  --ami-deep:   #0034aa;   /* deeper blue for gradients            */
  --ink:        #0d1b2e;   /* darkest navy — dark section grounds  */
  --paper:      #f7f9fc;   /* page background                      */
  --white:      #ffffff;
  --slate:      #64748b;   /* secondary text, captions             */
  --hairline:   #d4dff0;   /* borders and rules — used everywhere  */
  --panel:      #dce7fa;   /* pale blue panel                      */
  --green:      #2e9e6b;   /* sparing — "confirmed" states only    */

  --text:       #222b38;
  --text-dim:   #4a5b70;
  --wash:       #eef3fc;
  --on-dark:    #e6edf7;
  --on-dark-dim:#9db1c7;
  --hair-dark:  #2a3d55;
  --hair-blue:  rgba(255,255,255,.22);

  --f-sans: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --wrap: 1140px;
  --measure: 42rem;
  --pad-x: clamp(1.25rem, 5vw, 2.5rem);
  --section-y: clamp(3.5rem, 7.5vw, 6rem);
}

/* ---------- 3. Base --------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--f-sans);
  font-size:1.0625rem;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4{font-weight:600;line-height:1.2;letter-spacing:-.012em;color:var(--ink);margin:0}
p{margin:0}
a{color:var(--ami);text-decoration:underline;text-underline-offset:.15em;text-decoration-thickness:from-font}
a:hover{text-decoration-thickness:2px}
img,svg{display:block;max-width:100%}
img{height:auto}
strong{font-weight:600;color:var(--ink)}
sub{font-size:.72em;line-height:0;vertical-align:-.28em}
::selection{background:var(--ami);color:#fff}
:focus-visible{outline:2px solid var(--ami);outline-offset:3px;border-radius:1px}
.on-dark :focus-visible{outline-color:#8fbcff}
main:focus{outline:none}
.skip{position:absolute;left:-9999px;top:0;background:var(--ami);color:#fff;padding:.6rem 1rem;z-index:200}
.skip:focus{left:.5rem;top:.5rem}

/* ---------- 4. Layout ------------------------------------- */
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad-x)}
.section{padding-block:var(--section-y);position:relative}
.section--white{background:var(--white)}
.section--paper{background:var(--paper)}
.section--ink{background:var(--ink);color:var(--on-dark)}
.section--blue{background:var(--ami);color:#fff}
.section--ink h2,.section--ink h3,.section--ink h4,.section--blue h2,.section--blue h3,.section--blue h4{color:#fff}
.section--ink strong,.section--blue strong{color:#fff}

.measure{max-width:var(--measure)}
.lede{font-size:1.1875rem;line-height:1.5;color:var(--text-dim)}
.section--ink .lede,.section--blue .lede{color:var(--on-dark)}

/* section head: tracked-caps label + title (deck convention) */
.head{margin-bottom:clamp(1.75rem,3.5vw,2.75rem)}
.label{display:block;font-family:var(--f-mono);font-size:.72rem;font-weight:400;
  letter-spacing:.16em;text-transform:uppercase;color:var(--ami);margin-bottom:.7rem}
.section--ink .label,.section--blue .label{color:#8fbcff}
.section--blue .label{color:rgba(255,255,255,.88)}
.head h2{font-size:clamp(1.5rem,1.1rem + 1.7vw,2.1rem)}
.head .lede{margin-top:.85rem}

/* full-width footnote line at the end of a section (deck convention) */
.note{margin-top:clamp(2rem,4vw,3rem);padding-top:1.1rem;border-top:1px solid var(--hairline);
  font-size:.95rem;color:var(--text-dim);max-width:56rem}
.section--ink .note,.section--blue .note{border-color:var(--hair-blue);color:var(--on-dark-dim)}
.section--blue .note{color:rgba(255,255,255,.88)}

.tag{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.14em;color:var(--slate);text-transform:uppercase}
.stack>*+*{margin-top:1.05rem}

/* ---------- 5. Nav --------------------------------------- */
.nav{position:sticky;top:0;z-index:100;background:var(--paper);border-bottom:1px solid var(--hairline)}
.nav__in{display:flex;align-items:center;justify-content:space-between;gap:1.25rem;
  height:56px;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad-x)}
.nav__in nav{min-width:0;display:flex}
.brand{display:flex;align-items:baseline;gap:.55rem;text-decoration:none;color:var(--ink);flex:none}
.brand svg{height:18px;width:45px;flex:none;transform:translateY(3px)}
.brand span{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.04em;color:var(--slate);text-transform:uppercase}
.nav__links{display:flex;gap:1.15rem;align-items:center;margin:0;padding:0;list-style:none}
.nav__links a{font-size:.84rem;color:var(--text-dim);text-decoration:none;white-space:nowrap}
.nav__links a:hover,.nav__links a[aria-current]{color:var(--ami)}
.nav__cta{display:inline-block;font-family:var(--f-mono);font-size:.78rem;letter-spacing:.02em;
  padding:.38rem .8rem;border:1px solid var(--hairline);border-radius:2px;white-space:nowrap}
.nav__cta:hover{border-color:var(--ami)}
@media (max-width:1000px){
  .nav__in{gap:1rem}
  .nav__links{gap:1rem;margin-left:auto;overflow-x:auto;scrollbar-width:none;
    -webkit-overflow-scrolling:touch;-webkit-mask-image:linear-gradient(90deg,transparent,#000 14px)}
  .nav__links::-webkit-scrollbar{display:none}
  .nav__links a{font-size:.8rem}
}
@media (max-width:520px){ .brand span{display:none} }

/* ---------- 6. Components -------------------------------- */
.btn{display:inline-block;font-family:var(--f-mono);font-size:.85rem;letter-spacing:.01em;
  padding:.72rem 1.15rem;border-radius:2px;text-decoration:none;border:1px solid transparent;cursor:pointer}
.btn--solid{background:var(--ami);color:#fff}
.btn--solid:hover{background:var(--ami-deep)}
.btn--line{border-color:var(--hairline);color:var(--ink);background:transparent}
.btn--line:hover{border-color:var(--ami);color:var(--ami)}
.on-dark .btn--solid{background:#fff;color:var(--ami)}
.on-dark .btn--solid:hover{background:var(--wash)}
.on-dark .btn--line{border-color:var(--hair-blue);color:#fff}
.on-dark .btn--line:hover{border-color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:.75rem}

/* data band — mono figures, hairline dividers, no shadow */
.data{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--hairline);border-radius:2px;background:var(--white)}
.section--ink .data,.section--blue .data{background:rgba(255,255,255,.06);border-color:var(--hair-blue)}
.data>div{padding:1.2rem 1.3rem;border-right:1px solid var(--hairline)}
.section--ink .data>div,.section--blue .data>div{border-color:var(--hair-blue)}
.data>div:last-child{border-right:0}
.data dt{font-family:var(--f-mono);font-size:1.65rem;font-weight:400;color:var(--ink);letter-spacing:-.02em}
.section--ink .data dt,.section--blue .data dt{color:#fff}
.data dd{margin:.35rem 0 0;font-size:.88rem;line-height:1.4;color:var(--text-dim)}
.section--ink .data dd,.section--blue .data dd{color:var(--on-dark-dim)}
.data .src{font-family:var(--f-mono);font-size:.68rem;color:var(--slate);margin-top:.45rem}

/* key/value list */
.kv{border-top:1px solid var(--hairline)}
.section--ink .kv,.section--blue .kv{border-color:var(--hair-blue)}
.kv>div{display:grid;grid-template-columns:9rem 1fr;gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--hairline)}
.section--ink .kv>div,.section--blue .kv>div{border-color:var(--hair-blue)}
.kv dt{font-family:var(--f-mono);font-size:.76rem;letter-spacing:.03em;text-transform:uppercase;color:var(--slate);padding-top:.15rem}
.section--ink .kv dt,.section--blue .kv dt{color:var(--on-dark-dim)}
.kv dd{margin:0}

/* datasheet table */
.sheet{width:100%;border-collapse:collapse;font-size:.93rem}
.sheet caption{text-align:left;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--slate);padding-bottom:.7rem}
.sheet th,.sheet td{text-align:left;padding:.65rem .85rem;border-bottom:1px solid var(--hairline);vertical-align:top}
.sheet thead th{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;color:var(--slate);font-weight:400}
.sheet tbody th{font-weight:400;color:var(--text-dim)}
.sheet .amt{font-family:var(--f-mono);color:var(--ami);font-weight:500;white-space:nowrap}
.sheet .base{font-family:var(--f-mono);color:var(--slate)}
.sheet .basis{font-size:.86rem;color:var(--text-dim)}
.sheet-scroll{overflow-x:auto}

.panel{background:var(--white);border:1px solid var(--hairline);border-radius:2px;padding:clamp(1.25rem,3vw,1.9rem)}
.panel--wash{background:var(--wash);border-color:#cfe0f6}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3.25rem)}
.grid-2--wide-first{grid-template-columns:1.1fr .9fr}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.5rem,3vw,2.25rem)}

.divlist{list-style:none;margin:0;padding:0}
.divlist li{padding:.85rem 0;border-top:1px solid var(--hairline)}
.divlist li:last-child{border-bottom:1px solid var(--hairline)}
.section--ink .divlist li{border-color:var(--hair-blue)}
.divlist b{display:block;font-weight:600;color:var(--ink)}
.section--ink .divlist b{color:#fff}
.divlist span{color:var(--text-dim);font-size:.96rem}
.section--ink .divlist span{color:var(--on-dark-dim)}

/* numbered effect blocks (deck convention) */
.effect{border-top:2px solid var(--ami)}
.effect .n{font-family:var(--f-mono);font-size:.8rem;color:var(--ami);display:block;margin:.7rem 0 .5rem}
.section--ink .effect{border-color:#8fbcff}
.section--ink .effect .n{color:#8fbcff}
.effect h3{font-size:1.05rem;margin-bottom:.5rem}
.effect p{font-size:.96rem;color:var(--text-dim)}
.section--ink .effect p{color:var(--on-dark-dim)}
.effect .kick{margin-top:.7rem;font-weight:600;color:var(--ink);font-size:.96rem}
.section--ink .effect .kick{color:#fff}

/* ---------- 7. Sections --------------------------------- */

/* hero — full-bleed photo, white text */
.hero{position:relative;color:#fff;isolation:isolate;
  padding-block:clamp(4rem,12vw,8rem);min-height:min(88vh,760px);display:flex;align-items:center}
.hero__bg{position:absolute;inset:0;z-index:-2;object-fit:cover;width:100%;height:100%}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(13,27,46,.5) 0%,rgba(8,52,120,.5) 55%,rgba(13,27,46,.76) 100%)}
.hero .wrap{width:100%}
.hero__mark{height:26px;width:auto;margin-bottom:1.6rem}
.hero h1{font-weight:500;font-size:clamp(1.5rem,1.15rem + 1.4vw,2.1rem);line-height:1.38;
  letter-spacing:-.008em;max-width:42rem;color:#fff}
.hero h1 em{font-style:normal;color:#9fc6ff}
.hero__sub{margin-top:1.2rem;font-size:1.0625rem;color:rgba(255,255,255,.86);max-width:34rem}
.hero__facts{display:flex;flex-wrap:wrap;gap:1.1rem 2.5rem;margin:1.8rem 0;padding-top:1.3rem;
  border-top:1px solid var(--hair-blue);font-family:var(--f-mono);font-size:.8rem;color:rgba(255,255,255,.75)}
.hero__facts b{display:block;color:#fff;font-weight:500;font-size:.98rem;margin-bottom:.1rem}

/* asset-light model diagram */
.model-fig{margin:clamp(1.5rem,4vw,2.5rem) 0 0;overflow-x:auto}
.model-fig img{width:100%;max-width:900px;margin-inline:auto}
@media (max-width:700px){ .model-fig img{min-width:600px} }

/* pipeline */
.pl{margin-top:.5rem}
.pl__row{display:grid;grid-template-columns:10rem 1fr;gap:1.1rem;align-items:center;
  padding:.9rem 0;border-top:1px solid var(--hairline)}
.pl__row:last-child{border-bottom:1px solid var(--hairline)}
.pl__name{font-weight:600;font-size:.95rem}
.pl__name span{display:block;font-family:var(--f-mono);font-weight:400;font-size:.72rem;color:var(--slate);margin-top:.15rem}
.pl__track{display:grid;grid-template-columns:repeat(6,1fr);gap:.4rem}
.pl__cell{height:.5rem;border-radius:1px;background:var(--hairline)}
.pl__cell--done{background:var(--ami)}
.pl__cell--wip{background:repeating-linear-gradient(135deg,var(--ami) 0 3px,#9cc1ee 3px 6px)}
.pl__legend{display:flex;flex-wrap:wrap;gap:1.2rem;margin-top:1rem;font-family:var(--f-mono);font-size:.72rem;color:var(--slate)}
.pl__legend i{display:inline-block;width:1.4rem;height:.5rem;border-radius:1px;margin-right:.4rem;vertical-align:middle}
.pl__key{font-family:var(--f-mono);font-size:.72rem;color:var(--slate);margin-top:.8rem;line-height:1.6}

/* timeline */
.tl{list-style:none;margin:1.3rem 0 0;padding:0;border-left:2px solid var(--hairline)}
.tl li{position:relative;padding:.15rem 0 1.1rem 1.4rem}
.tl li::before{content:"";position:absolute;left:-5px;top:.5rem;width:8px;height:8px;border-radius:50%;background:var(--ami)}
.tl time{font-family:var(--f-mono);font-size:.8rem;color:var(--ami);font-weight:500}
.tl p{margin:.15rem 0 0;font-size:.96rem;color:var(--text-dim)}

/* technology */
.flow{display:flex;flex-wrap:wrap;gap:.6rem .9rem;align-items:baseline;margin-bottom:2.2rem;
  font-family:var(--f-mono);font-size:.82rem;color:var(--text-dim);border-block:1px solid var(--hairline);padding-block:1rem}
.flow b{color:var(--ink);font-weight:500}
.flow .arw{color:var(--slate)}
.io h3{font-size:.8rem;font-family:var(--f-mono);font-weight:500;letter-spacing:.04em;text-transform:uppercase;color:var(--slate);margin-bottom:.5rem}
.io p{color:var(--text-dim);font-size:.96rem}
.io+.io{margin-top:1.35rem}

/* reference installations */
.refs{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2.5vw,1.6rem)}
.ref figure{margin:0}
.ref img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:2px;border:1px solid var(--hairline)}
.ref figcaption{margin-top:.6rem}
.ref b{display:block;font-size:.95rem;color:var(--ink)}
.ref span{font-family:var(--f-mono);font-size:.72rem;color:var(--slate)}

/* team */
.team{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1.1rem,2.5vw,1.9rem)}
.team__card figure{margin:0}
.team__mug{width:100%;max-width:132px;aspect-ratio:1;object-fit:cover;border-radius:50%;
  background:var(--wash);margin-bottom:.9rem}
.team__card h3{font-size:.95rem;line-height:1.3}
.team__role{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.02em;color:var(--ami);text-transform:uppercase;margin:.25rem 0 .55rem}
.team__card p{font-size:.86rem;color:var(--text-dim);line-height:1.45}
.team--depth{grid-template-columns:repeat(3,1fr);margin-top:2.5rem;padding-top:2rem;border-top:1px solid var(--hairline)}
.team--depth .team__mug{max-width:96px}

/* carbon chart */
.chart{border:1px solid var(--hairline);border-radius:2px;background:var(--white);padding:clamp(1rem,3vw,1.75rem)}
.section--ink .chart{background:rgba(255,255,255,.05);border-color:var(--hair-blue)}
.chart figcaption{margin-top:.9rem;font-size:.9rem;color:var(--text-dim)}
.section--ink .chart figcaption{color:var(--on-dark-dim)}
.chart__legend{display:flex;gap:1.4rem;font-family:var(--f-mono);font-size:.76rem;margin-bottom:.6rem}
.chart__legend i{display:inline-block;width:1.6rem;height:3px;margin-right:.4rem;vertical-align:middle}

/* contact */
.contact__card{background:rgba(255,255,255,.08);border:1px solid var(--hair-blue);border-radius:2px;padding:clamp(1.5rem,4vw,2.25rem)}
.contact__hint{font-family:var(--f-mono);font-size:.76rem;color:rgba(255,255,255,.85);margin-top:.7rem}

/* image band */
.band img{width:100%;height:clamp(220px,36vw,400px);object-fit:cover}
.band figcaption{font-family:var(--f-mono);font-size:.72rem;color:var(--slate);max-width:var(--wrap);margin:.6rem auto 0;padding-inline:var(--pad-x)}

/* footer */
.foot{background:var(--ink);color:var(--on-dark-dim);padding-block:clamp(2.5rem,5vw,3.5rem);font-size:.9rem}
.foot__grid{display:grid;grid-template-columns:1.4fr 1fr;gap:2rem}
.foot__brand svg{height:20px;width:auto;margin-bottom:.9rem}
.foot__brand p{max-width:30rem}
.foot__legal{font-family:var(--f-mono);font-size:.75rem;line-height:1.7;color:var(--on-dark-dim);
  border-top:1px solid var(--hair-dark);margin-top:2rem;padding-top:1.4rem}
.foot__nav{list-style:none;margin:0;padding:0;columns:2;font-size:.88rem}
.foot__nav li{margin-bottom:.5rem;break-inside:avoid}
.foot__nav a{color:var(--on-dark-dim);text-decoration:none}
.foot__nav a:hover{color:#fff}

/* ---------- 8. Responsive ------------------------------- */
@media (max-width:900px){
  .grid-2,.grid-2--wide-first,.grid-3{grid-template-columns:1fr}
  .data{grid-template-columns:1fr}
  .data>div{border-right:0;border-bottom:1px solid var(--hairline)}
  .data>div:last-child{border-bottom:0}
  .section--ink .data>div,.section--blue .data>div{border-color:var(--hair-blue)}
  .refs{grid-template-columns:1fr 1fr}
  .team{grid-template-columns:repeat(3,1fr)}
  .team--depth{grid-template-columns:repeat(3,1fr)}
  .pl__row{grid-template-columns:1fr}
  .foot__grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .kv>div{grid-template-columns:1fr;gap:.2rem}
  .refs,.team,.team--depth{grid-template-columns:1fr 1fr}
  .btn{display:block;text-align:center}
  .btn-row{flex-direction:column}
  .flow{flex-direction:column;align-items:flex-start;gap:.5rem}
  .flow .arw{display:none}
}

/* ---------- 9. Motion / print --------------------------- */
/* The only animation is inside digester.svg, guarded there by
   prefers-reduced-motion. Nothing animates on scroll. */
@media print{
  .nav{position:static}
  .hero::after{display:none}
  .section--ink,.section--blue{background:#fff;color:#000}
  .section--ink h2,.section--blue h2,.section--ink h3,.section--blue h3{color:#000}
  a{color:#000}
}