@import url('https://fonts.googleapis.com/css2?family=IM+Fell+English:ital@0;1&family=IM+Fell+English+SC&family=Spectral:ital,wght@0,400;0,500;0,600;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
    --ink:#241a12;
    --leather:#2f2015;
    --leather-2:#3c2a1b;
    --leather-line:#57402a;
    --parchment:#f3e8cf;
    --parchment-2:#ece0bf;
    --parchment-line:#cdb989;
    --ink-text:#2c2013;
    --muted:#8a765a;
    --muted-on-dark:#c9b596;
    --verdigris:#7fa08c;
    --oxblood:#a24a34;

    --brass-h:40;
    --brass-s:46%;
    --brass-text:#3a2710;

    --font-display:'IM Fell English', Georgia, serif;
    --font-mono:'JetBrains Mono', monospace;

    --plate-gradient: linear-gradient(
      to bottom,
      hsl(var(--brass-h), var(--brass-s), 75.29%) 0.0%,
      hsl(var(--brass-h), var(--brass-s), 86.67%) 3.5714%,
      hsl(var(--brass-h), var(--brass-s), 100.0%) 7.1429%,
      hsl(var(--brass-h), var(--brass-s), 100.0%) 28.5714%,
      hsl(var(--brass-h), var(--brass-s), 99.61%) 32.1429%,
      hsl(var(--brass-h), var(--brass-s), 98.82%) 35.7143%,
      hsl(var(--brass-h), var(--brass-s), 98.04%) 39.2857%,
      hsl(var(--brass-h), var(--brass-s), 97.25%) 42.8571%,
      hsl(var(--brass-h), var(--brass-s), 96.47%) 46.4286%,
      hsl(var(--brass-h), var(--brass-s), 95.69%) 50.0%,
      hsl(var(--brass-h), var(--brass-s), 94.51%) 53.5714%,
      hsl(var(--brass-h), var(--brass-s), 94.12%) 57.1429%,
      hsl(var(--brass-h), var(--brass-s), 93.33%) 60.7143%,
      hsl(var(--brass-h), var(--brass-s), 92.16%) 64.2857%,
      hsl(var(--brass-h), var(--brass-s), 91.37%) 67.8571%,
      hsl(var(--brass-h), var(--brass-s), 90.2%) 71.4286%,
      hsl(var(--brass-h), var(--brass-s), 89.41%) 75.0%,
      hsl(var(--brass-h), var(--brass-s), 93.33%) 78.5714%,
      hsl(var(--brass-h), var(--brass-s), 89.8%) 82.1429%,
      hsl(var(--brass-h), var(--brass-s), 95.29%) 85.7143%,
      hsl(var(--brass-h), var(--brass-s), 96.47%) 89.2857%,
      hsl(var(--brass-h), var(--brass-s), 96.47%) 92.8571%,
      hsl(var(--brass-h), var(--brass-s), 96.08%) 96.4286%,
      hsl(var(--brass-h), var(--brass-s), 94.51%) 100.0%
    );
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}

body{
    margin:0;
    background:
      radial-gradient(1200px 600px at 15% -10%, rgba(255,255,255,0.05), transparent 60%),
      var(--ink);
    color:var(--parchment);
    font-family:'Spectral', Georgia, serif;
    font-size:16.5px;
    line-height:1.65;
}

a{color:var(--verdigris);}
a:hover{color:#a3c2ae;}
:focus-visible{outline:2px solid var(--verdigris); outline-offset:3px;}

.wrap{max-width:880px; margin:0 auto; padding:56px 24px 90px;}

/* ---------------- plates (the plastique/brass system) ---------------- */
.plate{
    background:var(--plate-gradient);
    border:1px solid rgba(0,0,0,0.4);
    border-radius:3px;
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,0.65),
      inset 0 -1px 0 rgba(0,0,0,0.28),
      0 3px 10px rgba(0,0,0,0.45);
    color:var(--brass-text);
    position:relative;
    overflow:hidden;
}
.plate::after{
    content:"";
    position:absolute; inset:0;
    background:linear-gradient(115deg, transparent 40%, rgba(255,255,255,0.5) 48%, transparent 56%);
    transform:translateX(-120%);
    transition:transform 0.7s ease;
    pointer-events:none;
}
.plate:hover::after{transform:translateX(120%);}

.plate-eyebrow{
    font-family:var(--font-mono);
    font-size:11px;
    letter-spacing:0.16em;
    text-transform:uppercase;
    opacity:0.72;
}

/* hero plate */
.hero-plate{padding:38px 34px 32px;}
.hero-plate h1{
    font-family:var(--font-display);
    font-weight:400;
    font-size:44px;
    letter-spacing:0.01em;
    margin:10px 0 8px;
    text-shadow:0 1px 0 rgba(255,255,255,0.5);
}
.hero-plate p{
    margin:0;
    font-size:15.5px;
    font-style:italic;
    max-width:46ch;
    opacity:0.85;
}
@media (min-width:768px){
    .hero-plate p{max-width:none;}
}

/* act plate */
.act-plate{padding:16px 22px; margin-bottom:22px; display:flex; align-items:baseline; gap:14px; flex-wrap:wrap;}
.act-plate h2{
    font-family:var(--font-display);
    font-weight:400;
    font-size:24px;
    margin:0;
    letter-spacing:0.01em;
}

/* station bar plate */
.station-plate{
    padding:10px 18px;
    display:flex;
    align-items:baseline;
    gap:12px;
    border-bottom:none;
    border-bottom-left-radius:0;
    border-bottom-right-radius:0;
}
.station-num{
    font-family:'IM Fell English SC', 'IM Fell English', serif;
    font-size:20px;
    opacity:0.85;
}
.station-plate h3{
    font-family:var(--font-display);
    font-weight:400;
    font-size:20px;
    margin:0;
    letter-spacing:0.01em;
}

/* ---------------- breadcrumb ---------------- */
.crumbs{
    font-family:var(--font-mono);
    font-size:11.5px;
    letter-spacing:0.03em;
    color:var(--muted-on-dark);
    margin-bottom:18px;
}
.crumbs a{color:var(--muted-on-dark); text-decoration:none; border-bottom:1px dotted var(--leather-line);}
.crumbs a:hover{color:var(--verdigris);}
.crumbs span{opacity:0.5; margin:0 6px;}
.crumbs .current{opacity:0.85;}

/* ---------------- floor directory / toc ---------------- */
.toc{
    margin:30px 0 54px;
    padding:18px 22px;
    background:var(--leather-2);
    border:1px solid var(--leather-line);
    border-radius:4px;
}
.toc-label{
    font-family:var(--font-mono);
    font-size:10.5px;
    letter-spacing:0.18em;
    text-transform:uppercase;
    color:var(--muted-on-dark);
    margin-bottom:10px;
}
.toc-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:6px 18px;
    font-size:13.5px;
}
.toc-grid a{
    color:var(--parchment);
    text-decoration:none;
    display:flex; gap:8px;
    padding:2px 0;
    border-bottom:1px solid transparent;
}
.toc-grid a:hover{color:var(--verdigris);}
.toc-grid .n{font-family:var(--font-mono); color:var(--muted-on-dark); font-size:12px;}
@media (max-width:560px){ .toc-grid{grid-template-columns:repeat(2,1fr);} }

/* ---------------- act sections ---------------- */
.act{margin-top:64px;}

/* ---------------- station card ---------------- */
.station{
    scroll-margin-top:24px;
    margin-bottom:22px;
    border-radius:4px;
    overflow:hidden;
    border:1px solid var(--parchment-line);
}
.station-body{
    background:var(--parchment);
    color:var(--ink-text);
    padding:22px 24px 24px;
    display:grid;
    grid-template-columns:200px 1fr;
    gap:24px;
}
@media (max-width:600px){
    .station-body{grid-template-columns:1fr;}
}

.station-figs{display:flex; flex-direction:column; gap:10px;}
.station-fig{display:block;}
.station-fig img{
    width:100%; display:block;
    border:6px solid #fff;
    box-shadow:0 2px 8px rgba(0,0,0,0.28), 0 0 0 1px rgba(0,0,0,0.15);
    filter:sepia(0.12) contrast(1.02);
    transition:transform 0.25s ease;
}
.station-fig:hover img{transform:translateY(-2px); box-shadow:0 6px 14px rgba(0,0,0,0.32), 0 0 0 1px rgba(0,0,0,0.18);}
.station-fig .cap{
    display:block;
    font-family:var(--font-mono);
    font-size:10px;
    letter-spacing:0.03em;
    color:var(--muted);
    margin-top:5px;
    text-align:center;
}

.station-text p{margin:0 0 12px;}
.station-text p:last-child{margin-bottom:0;}

.tip{
    margin-top:14px;
    padding:10px 14px;
    border-left:3px solid var(--oxblood);
    background:rgba(162,74,52,0.07);
    font-style:italic;
    font-size:14.5px;
}
.tip .tip-label{
    display:block;
    font-family:var(--font-mono);
    font-style:normal;
    font-size:10px;
    letter-spacing:0.14em;
    text-transform:uppercase;
    color:var(--oxblood);
    margin-bottom:4px;
}

/* diagram (e.g. folding/imposition schemes) */
.diagram{
    margin-top:14px;
    font-family:var(--font-mono);
    font-size:12.5px;
    background:var(--parchment-2);
    border:1px solid var(--parchment-line);
    border-radius:3px;
    padding:14px 16px;
}
.diagram-title{
    font-size:10px; letter-spacing:0.12em; text-transform:uppercase;
    color:var(--muted); margin-bottom:10px;
}
.diagram-grid{
    display:grid; grid-template-columns:1fr 1fr; gap:0 22px;
}
.diagram-grid h4{
    margin:0 0 6px; font-size:10.5px; text-transform:uppercase; letter-spacing:0.1em; color:var(--muted); font-weight:500;
}
.diagram-grid .row{display:flex; justify-content:space-between; padding:2px 0;}
.diagram-grid .up{opacity:0.55;}
.diagram-grid .up::after{content:" \25B2";}

/* ---------------- transition block ---------------- */
.transition{
    margin:58px 0 10px;
    text-align:center;
}
.transition-rule{
    height:1px;
    background:linear-gradient(to right, transparent, var(--leather-line), transparent);
    margin-bottom:26px;
}
.transition-plate{
    display:inline-block;
    padding:14px 26px;
    margin-bottom:16px;
}
.transition-plate h2{
    font-family:var(--font-display);
    font-weight:400; font-size:22px; margin:0;
}
.transition p{
    max-width:62ch; margin:0 auto; color:var(--muted-on-dark); font-size:14.5px; text-align:left;
}

/* ---------------- articles listing (index) ---------------- */
.listing-intro{
    max-width:62ch;
    color:var(--muted-on-dark);
    font-size:15px;
    margin:0 0 40px;
}
.listing-grid{
    display:grid;
    gap:18px;
}
.listing-card{
    display:block;
    background:var(--leather-2);
    border:1px solid var(--leather-line);
    border-radius:4px;
    padding:22px 24px;
    text-decoration:none;
    color:var(--parchment);
    transition:border-color 0.2s, transform 0.2s;
}
.listing-card:hover{border-color:var(--verdigris); transform:translateY(-2px);}
.listing-card h2{
    font-family:var(--font-display);
    font-weight:400;
    font-size:26px;
    margin:0 0 6px;
    color:var(--parchment);
}
.listing-date{
    font-family:var(--font-mono);
    font-size:11px;
    letter-spacing:0.05em;
    color:var(--muted-on-dark);
    display:block;
    margin-bottom:10px;
}
.listing-card p{
    margin:0;
    font-size:14.5px;
    color:var(--muted-on-dark);
    max-width:65ch;
}
@media (min-width:768px){
    .listing-card p{max-width:none;}
}

/* ---------------- footer ---------------- */
footer{
    margin-top:70px;
    padding-top:22px;
    border-top:1px solid var(--leather-line);
    font-family:var(--font-mono);
    font-size:11.5px;
    color:var(--muted-on-dark);
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:10px;
}
footer a{color:var(--muted-on-dark);}
footer a:hover{color:var(--verdigris);}