/* The Tract — identity system 2026: ink on warm paper, quiet copper accent.
   Deep Ink #1B2636 · Warm Paper #F4F0E7 · Quiet Copper #B66C4E · Rock Slate #46515D
   Display: Newsreader (Georgia fallback). Interface: Inter (Arial fallback). */
:root{
  --paper:#F4F0E7; --paper-2:#FBF8F2; --paper-3:#EAE4D7; --line:#D9D1C1;
  --ink:#1B2636; --slate:#46515D; --muted:#5E6873; --copper:#B66C4E; --copper-2:#9C5638;
  --f-display:"Newsreader", Georgia, "Times New Roman", serif;
  --f-serif:"Newsreader", Georgia, serif;
  --f-sans:"Inter", Arial, system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-serif);font-size:18px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--copper-2)}
a:focus-visible,button:focus-visible{outline:2px solid var(--copper);outline-offset:3px}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding-inline:20px}
.eyebrow{font-family:var(--f-sans);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--copper);font-weight:600}
h1,h2,h3{font-family:var(--f-display);font-weight:500;line-height:1.08;margin:0;text-wrap:balance;color:var(--ink)}
h1{font-size:clamp(42px,7vw,78px);letter-spacing:-.015em}
h2{font-size:clamp(30px,4.4vw,46px);letter-spacing:-.01em}
h3{font-size:25px}
p{margin:0}
.lede{font-size:clamp(18px,2.2vw,21px);color:var(--slate);max-width:36em;font-family:var(--f-sans);line-height:1.6;font-weight:400}
.signal{display:flex;align-items:center;width:220px;max-width:60%}
.signal::before{content:"";height:1px;flex:1;background:var(--slate);opacity:.5}
.signal::after{content:"";width:9px;height:9px;border-radius:50%;background:var(--copper)}

/* mark */
.mark{display:inline-block;flex:none}

/* nav */
.nav{position:sticky;top:0;z-index:10;background:rgba(244,240,231,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px;padding-top:calc(12px + env(safe-area-inset-top,0px))}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.brand .wm{display:flex;flex-direction:column;line-height:1}
.brand .wm b{font-family:var(--f-display);font-weight:500;font-size:22px;letter-spacing:.04em}
.brand .wm small{font-family:var(--f-sans);font-size:8.5px;letter-spacing:.22em;color:var(--slate);margin-top:4px;font-weight:600}
.nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0;font-family:var(--f-sans);font-size:14px;font-weight:500}
.nav ul a{color:var(--slate);text-decoration:none}
.nav ul a:hover,.nav ul a[aria-current]{color:var(--copper)}
@media (max-width:700px){.nav ul li.opt{display:none}.nav ul{gap:14px;font-size:13px}.brand .wm small{display:none}}

/* buttons */
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-sans);font-size:15px;font-weight:600;padding:13px 22px;border-radius:3px;text-decoration:none;border:1px solid transparent;cursor:pointer;letter-spacing:.01em}
.btn.primary{background:var(--ink);color:var(--paper)}
.btn.primary:hover{background:#26344a}
.btn.copper{background:var(--copper);color:#fff}
.btn.copper:hover{background:var(--copper-2)}
.btn.ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn.ghost:hover{border-color:var(--copper);color:var(--copper-2)}
.btn small{font-weight:400;opacity:.75}

section{padding-block:clamp(56px,9vw,104px)}
.sec-h{display:flex;flex-direction:column;gap:12px;margin-bottom:34px}
.sec-h .num{font-family:var(--f-sans);font-size:12px;letter-spacing:.2em;color:var(--slate);font-weight:600}

/* hero */
.hero{position:relative;overflow:hidden;padding-block:clamp(64px,11vw,132px) clamp(56px,9vw,96px);border-bottom:1px solid var(--line)}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.5;pointer-events:none}
.hero .wrap{position:relative;display:flex;flex-direction:column;gap:22px}
.hero h1 em{font-style:normal;color:var(--copper)}

/* two meanings */
.meanings{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.meaning{border-left:2px solid var(--copper);padding:4px 0 4px 20px;display:flex;flex-direction:column;gap:8px}
.meaning .w{font-family:var(--f-display);font-size:30px;color:var(--ink)}
.meaning .w span{font-family:var(--f-sans);font-size:11px;color:var(--copper);letter-spacing:.18em;margin-left:10px;font-weight:600}
.meaning p{color:var(--slate);font-family:var(--f-sans);font-size:16px}
@media (max-width:640px){.meanings{grid-template-columns:1fr}}

/* book feature */
.feature{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:clamp(28px,6vw,64px);align-items:center}
.cover{border-radius:2px;box-shadow:0 24px 48px -22px rgba(27,38,54,.55),0 0 0 1px rgba(27,38,54,.08);aspect-ratio:910/1287;width:100%;height:auto}
.feature .txt{display:flex;flex-direction:column;gap:18px}
.facts{display:flex;flex-wrap:wrap;gap:10px 22px;font-family:var(--f-sans);font-size:14px;color:var(--slate)}
.facts b{color:var(--ink);font-weight:700}
@media (max-width:720px){.feature{grid-template-columns:1fr}.feature .cover{max-width:260px}}

/* panels */
.panel{background:var(--paper-2);border:1px solid var(--line);border-radius:4px;padding:clamp(22px,4vw,36px)}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:720px){.grid2{grid-template-columns:1fr}}
.about{display:flex;flex-direction:column;gap:14px}
.about p{font-family:var(--f-sans);font-size:16.5px;color:var(--slate)}
.cred{font-family:var(--f-sans);font-size:13px;color:var(--copper)!important;letter-spacing:.04em;font-weight:600}

/* contents */
.toc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 40px}
.toc h3{font-size:23px;margin-bottom:8px}
.toc h3 small{display:block;font-family:var(--f-sans);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--copper);margin-bottom:4px;font-weight:600}
.toc ol{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px;font-size:16px;font-family:var(--f-sans)}
.toc li{position:relative;padding-left:32px;color:var(--ink)}
.toc li b{position:absolute;left:0;top:2px;font-family:var(--f-sans);font-size:13px;color:var(--copper);font-weight:600}
.toc li span{color:var(--muted)}
@media (max-width:720px){.toc{grid-template-columns:1fr}}

/* cite / meta */
.cite{font-family:var(--f-serif);font-size:16px;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:3px;padding:16px;word-break:break-word}
.note{font-family:var(--f-sans);font-size:13.5px;color:var(--muted)}
dl.meta{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:9px 20px;margin:0;font-family:var(--f-sans);font-size:14.5px}
dl.meta dt{color:var(--copper);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;padding-top:2px} dl.meta dd{margin:0;color:var(--ink)}

footer{border-top:1px solid var(--line);padding-block:40px calc(40px + env(safe-area-inset-bottom,0px));font-family:var(--f-sans);font-size:13px;color:var(--slate);letter-spacing:.02em}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px}
footer .brand .wm b{font-size:18px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hero canvas{display:none}}

/* book cards */
.alt{background:var(--paper-3);border-block:1px solid var(--line)}
.books{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.bookcard{display:grid;grid-template-columns:minmax(0,150px) minmax(0,1fr);gap:22px;align-items:start;background:var(--paper-2);border:1px solid var(--line);border-radius:4px;padding:22px}
.bookcard .txt{display:flex;flex-direction:column;gap:12px}
.bookcard h3 a{color:var(--ink);text-decoration:none}
.bookcard h3 a:hover{color:var(--copper-2)}
.bookcard p{color:var(--slate);font-size:15.5px;font-family:var(--f-sans)}
.bookcard .btn{padding:10px 16px;font-size:14px}
@media (max-width:900px){.books{grid-template-columns:1fr}}
@media (max-width:480px){.bookcard{grid-template-columns:1fr}.bookcard .cover{max-width:180px}}

/* FEBN band */
.febn-band{background:var(--ink);color:var(--paper)}
.febn-band h2,.febn-band h3,.febn-band .bookcard h3 a{color:var(--paper)}
.febn-band .lede,.febn-band .bookcard p,.febn-band .facts{color:#C5CCD4}
.febn-band .facts b{color:#fff}
.febn-band .bookcard{background:#222F42;border-color:#33425A}
.febn-band .btn.ghost{border-color:#C5CCD4;color:var(--paper)}
.febn-band .btn.ghost:hover{border-color:var(--copper);color:#fff}
.febn-band .eyebrow{color:#D58C6C}
.pill{display:inline-block;font-family:var(--f-sans);font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--copper);border:1px solid currentColor;border-radius:2px;padding:3px 8px;width:max-content}
.brand .wm b{white-space:nowrap}
.nav .sm{display:none}
@media (max-width:700px){.nav .lg{display:none}.nav .sm{display:inline}.brand .wm b{font-size:19px}}
.nav ul a{white-space:nowrap}

/* section header with action */
.sec-h.row{flex-direction:row;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:16px}
.sec-h.row>div{display:flex;flex-direction:column;gap:12px}
.hero-sm{padding-block:clamp(56px,9vw,104px) clamp(44px,7vw,72px)}

/* ticker */
.ticker{display:flex;align-items:stretch;border-block:1px solid var(--line);background:var(--paper-2);font-family:var(--f-sans);font-size:14px;overflow:hidden}
.ticker-label{flex:none;background:var(--ink);color:var(--paper);padding:12px 16px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;font-size:11.5px;display:flex;align-items:center;gap:8px}
.ticker-label::after{content:"";width:7px;height:7px;border-radius:50%;background:var(--copper);animation:blink 1.6s infinite}
@keyframes blink{50%{opacity:.25}}
.ticker-viewport{overflow:hidden;flex:1;-webkit-mask-image:linear-gradient(90deg,transparent,#000 4%,#000 96%,transparent);mask-image:linear-gradient(90deg,transparent,#000 4%,#000 96%,transparent)}
.ticker-track{display:flex;width:max-content;list-style:none;margin:0;padding:0;animation:tick 70s linear infinite}
.ticker:hover .ticker-track,.ticker:focus-within .ticker-track{animation-play-state:paused}
.ticker-track li{padding:12px 28px 12px 0;white-space:nowrap}
.ticker-track li::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--copper);margin-right:14px;vertical-align:middle}
.ticker-track a{color:var(--ink);text-decoration:none}
.ticker-track a:hover{color:var(--copper-2)}
.ticker-track a span{color:var(--copper);font-weight:600;margin-right:8px;font-size:12px;letter-spacing:.08em;text-transform:uppercase}
@keyframes tick{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.ticker-track{animation:none}.ticker-viewport{overflow-x:auto}}

/* updates */
.updates-band{padding-bottom:clamp(56px,9vw,96px)}
.updates-band .ticker{margin-bottom:34px}
.updates{display:grid;gap:18px}
.updates.three{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){.updates.three{grid-template-columns:1fr}}
.upd{background:var(--paper-2);border:1px solid var(--line);border-left:3px solid var(--copper);border-radius:3px;padding:22px 24px;display:flex;flex-direction:column;gap:10px;scroll-margin-top:90px}
.upd-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-family:var(--f-sans);font-size:13px;color:var(--slate)}
.upd h3{font-size:22px;line-height:1.2}
.upd p{font-family:var(--f-sans);font-size:15.5px;color:var(--slate)}
.upd .bl{color:var(--ink);background:var(--paper);border-radius:3px;padding:10px 12px}
.upd .bl b{color:var(--copper-2)}
.upd .src{font-size:13px;margin-top:auto}

/* tools */
.tools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
@media (max-width:900px){.tools{grid-template-columns:1fr}}
.tool{display:grid;grid-template-columns:48px minmax(0,1fr);gap:18px;background:var(--paper-2);border:1px solid var(--line);border-radius:4px;padding:26px}
.tool svg{margin-top:4px}
.tool-txt{display:flex;flex-direction:column;gap:10px}
.tool h3{font-size:27px}
.tool .tline{font-style:italic;color:var(--copper-2);font-family:var(--f-display);font-size:18px}
.tool p{font-family:var(--f-sans);font-size:15.5px;color:var(--slate)}
.tool ul{margin:0;padding:0;list-style:none;font-family:var(--f-sans);font-size:14px;color:var(--ink);display:flex;flex-direction:column;gap:5px}
.tool li::before{content:"—";color:var(--copper);margin-right:8px}
.tool .btns{margin-top:6px}