:root{--ink:#16182b;--ink2:#3a3d55;--muted:#62667d;--bg:#ffffff;--soft:#f4f7fb;--river:#0b8fa3;--river2:#0a6f80;--sun:#ff6b2c;--sun2:#e2531a;--gold:#ffb627;--sage:#3f8f5f;--night:#0f1226;--line:#e3e7ef;--r:18px;--shadow:0 10px 30px rgba(22,24,43,.10);--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font:17px/1.65 Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
img,video{max-width:100%;height:auto;display:block}a{color:var(--river2)}a:hover{color:var(--sun2)}
h1,h2,h3,h4{font-family:Fraunces,Georgia,serif;line-height:1.12;margin:0 0 .5em;letter-spacing:-.01em}
h2{font-size:clamp(1.9rem,3.6vw,2.8rem)}h3{font-size:1.35rem}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;z-index:99;background:#fff;padding:8px}
/* header */
.hdr{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .25s,box-shadow .25s}
.hdr.solid{background:rgba(255,255,255,.96);box-shadow:0 1px 0 var(--line);backdrop-filter:saturate(1.4) blur(8px)}
.hdr .wrap{display:flex;align-items:center;gap:18px;height:66px}
.brand{font-family:Fraunces,Georgia,serif;font-weight:700;font-size:1.15rem;color:#fff;text-decoration:none;white-space:nowrap}
.hdr.solid .brand{color:var(--ink)}.brand span{color:var(--gold)}.hdr.solid .brand span{color:var(--sun)}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav a{color:#fff;text-decoration:none;font-weight:600;font-size:.93rem;padding:8px 11px;border-radius:999px}
.hdr.solid .nav a{color:var(--ink2)}.nav a:hover{background:rgba(255,255,255,.16)}.hdr.solid .nav a:hover{background:var(--soft)}
.nav a.cta{background:var(--sun);color:#fff!important;padding:9px 16px}.nav a.cta:hover{background:var(--sun2)}
.burger{display:none;margin-left:auto;background:none;border:0;color:#fff;font-size:1.6rem;padding:8px;cursor:pointer}
.hdr.solid .burger{color:var(--ink)}
@media(max-width:920px){.burger{display:block}.nav{display:none;position:absolute;top:66px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;padding:10px 16px 18px;box-shadow:var(--shadow)}
.nav.open{display:flex}.nav a{color:var(--ink)!important;padding:12px}.nav a.cta{text-align:center}}
.pagehdr .hdr{background:#fff;box-shadow:0 1px 0 var(--line)}.pagehdr .brand{color:var(--ink)}.pagehdr .brand span{color:var(--sun)}.pagehdr .nav a{color:var(--ink2)}.pagehdr .burger{color:var(--ink)}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;text-decoration:none;border-radius:999px;padding:14px 24px;border:0;cursor:pointer;font-size:1rem;line-height:1.1;transition:transform .15s,background .2s,box-shadow .2s}
.btn:hover{transform:translateY(-1px)}.btn-sun{background:var(--sun);color:#fff;box-shadow:0 8px 22px rgba(255,107,44,.35)}.btn-sun:hover{background:var(--sun2);color:#fff}
.btn-river{background:var(--river);color:#fff}.btn-river:hover{background:var(--river2);color:#fff}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.55)}.btn-ghost:hover{background:rgba(255,255,255,.26);color:#fff}
.btn-line{background:#fff;color:var(--ink);border:1.5px solid var(--line)}.btn-line:hover{border-color:var(--river);color:var(--river2)}
/* hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;color:#fff;overflow:hidden;background:#1a1208}
.hero-media{position:absolute;inset:0}.hero-media video,.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero-media video{background:transparent}
.hero::before,.hero::after{content:"";position:absolute;left:0;right:0;height:7vh;background:#000;z-index:2;pointer-events:none}
.hero::before{top:0}.hero::after{bottom:0}
.hero-shade{position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(10,8,20,.82) 0%,rgba(10,8,20,.55) 45%,rgba(10,8,20,.05) 75%),linear-gradient(0deg,rgba(10,8,20,.5),transparent 40%)}
.hero .wrap{position:relative;z-index:3;display:grid;grid-template-columns:auto 1fr;gap:44px;align-items:center;padding-top:80px;padding-bottom:60px;width:100%}
.hero-cover,.book-cover{height:auto;aspect-ratio:2/3;object-fit:contain}
.hero-cover{width:250px;border-radius:6px;box-shadow:0 25px 60px rgba(0,0,0,.6);transform:rotate(-2deg)}
.book-cover{width:min(380px,100%);margin:auto;border-radius:10px;box-shadow:0 30px 60px rgba(22,24,43,.25)}
.eyebrow{display:inline-block;font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:.78rem;color:var(--gold);margin-bottom:12px}
.hero h1{font-size:clamp(2.4rem,5.6vw,4.6rem);margin-bottom:.2em;text-shadow:0 2px 24px rgba(0,0,0,.45)}
.hero .sub{font-size:clamp(1.05rem,1.6vw,1.3rem);max-width:600px;opacity:.95;margin:0 0 22px}
.hero .btns{display:flex;flex-wrap:wrap;gap:12px}.hero .meta{margin-top:16px;font-size:.9rem;opacity:.85}
.vidctl{position:absolute;z-index:4;right:18px;bottom:calc(7vh + 14px);background:rgba(0,0,0,.5);color:#fff;border:1px solid rgba(255,255,255,.4);border-radius:999px;padding:8px 14px;font-weight:600;font-size:.82rem;cursor:pointer}
@media(max-width:760px){.hero{min-height:100svh;align-items:flex-end}.hero::before,.hero::after{height:0}.hero .wrap{grid-template-columns:1fr;gap:18px;padding-bottom:84px}
.hero-shade{background:linear-gradient(0deg,rgba(10,8,20,.92) 0%,rgba(10,8,20,.7) 45%,rgba(10,8,20,.1) 80%)}
.hero-cover{width:96px}.hero h1{font-size:2.2rem}.hero .sub{font-size:1rem;margin-bottom:16px}.hero .btns .btn{padding:13px 18px}.vidctl{bottom:auto;top:76px;right:14px}.hero .meta{display:none}}
/* sections */
section{padding:88px 0}.soft{background:var(--soft)}.dark{background:var(--night);color:#e9ebf5}.dark h2,.dark h3{color:#fff}.dark a{color:var(--gold)}
.lead{font-size:1.18rem;color:var(--ink2);max-width:760px}.dark .lead{color:#c9cde0}
.kicker{font-weight:800;letter-spacing:.12em;text-transform:uppercase;font-size:.76rem;color:var(--sun);display:block;margin-bottom:10px}
.grid2{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
@media(max-width:860px){.grid2{grid-template-columns:1fr;gap:28px}section{padding:64px 0}}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px}
.fact{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px}.fact b{display:block;font-family:Fraunces,serif;font-size:1.7rem;color:var(--river2)}.fact span{font-size:.92rem;color:var(--muted)}
@media(max-width:760px){.facts{grid-template-columns:1fr 1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.voices{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:26px}.voice{padding:22px;border-radius:var(--r);color:#fff}
.voice.v1{background:linear-gradient(135deg,#0b8fa3,#0a5f74)}.voice.v2{background:linear-gradient(135deg,#ff6b2c,#c2410c)}.voice h3{color:#fff}
@media(max-width:640px){.voices{grid-template-columns:1fr}}
/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}
.gallery figure{margin:0;position:relative;border-radius:14px;overflow:hidden;cursor:zoom-in;background:#222}
.gallery img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .5s}.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:28px 14px 12px;color:#fff;font-size:.9rem;background:linear-gradient(0deg,rgba(0,0,0,.78),transparent);pointer-events:none}
.gallery figcaption small{display:block;opacity:.75;font-size:.72rem}
@media(max-width:860px){.gallery{grid-template-columns:1fr 1fr}}@media(max-width:520px){.gallery{grid-template-columns:1fr}}
.note{font-size:.85rem;color:var(--muted)}.dark .note{color:#a9aec6}
/* lightbox */
.lb{position:fixed;inset:0;z-index:100;background:rgba(5,6,15,.92);display:none;align-items:center;justify-content:center;padding:20px}
.lb.open{display:flex}.lb figure{margin:0;max-width:1100px}.lb img{max-height:78vh;border-radius:10px;margin:auto}.lb figcaption{color:#e6e8f2;margin-top:12px;text-align:center}
.lb button{position:absolute;top:14px;right:18px;background:#fff;border:0;border-radius:999px;width:44px;height:44px;font-size:1.4rem;cursor:pointer}
/* people */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:8px 15px;font-weight:600;cursor:pointer;font-size:.9rem;color:var(--ink2)}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.people{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.person{min-height:230px;cursor:pointer;border:0;padding:0;background:none;text-align:left;font:inherit;color:inherit}
.person .in{position:relative;width:100%;height:100%;min-height:230px}
.person .f,.person .b{position:absolute;inset:0;transition:opacity .35s;border-radius:var(--r);padding:20px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);display:flex;flex-direction:column}
.person .b{opacity:0;visibility:hidden;background:var(--ink);color:#e8eaf4;font-size:.93rem;line-height:1.5;overflow:auto}
.person .ini{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;font-family:Fraunces,serif;font-weight:700;font-size:1.2rem;color:#fff;margin-bottom:12px}
.side-river .ini{background:var(--river)}.side-emig .ini{background:var(--sun)}.side-army .ini{background:#4a5bd4}.side-earlier .ini{background:var(--sage)}
.person h3{margin:0 0 4px;font-size:1.2rem}.person .role{font-size:.88rem;color:var(--muted)}
.badge{display:inline-block;font-size:.7rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;border-radius:999px;padding:3px 9px;margin-top:auto;align-self:flex-start}
.badge.hist{background:#e3f5ec;color:#1d6b40}.badge.inv{background:#fff1e0;color:#a14a00}
.flipcue{font-size:.75rem;color:var(--muted);margin-top:8px}
/* map */
#leafmap{height:520px;border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--shadow);z-index:1;background:#dfe8ee}
.maplist{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
@media(max-width:640px){#leafmap{height:420px}}
/* timeline */
.tl-controls{position:sticky;top:66px;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);padding:12px 0;border-bottom:1px solid var(--line)}
.tl-controls .wrap{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tl{position:relative;margin:40px auto 0;max-width:1000px}
.tl::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:4px;margin-left:-2px;background:linear-gradient(var(--river),var(--sun));border-radius:4px}
.ev{position:relative;width:50%;padding:0 38px 44px}.ev:nth-child(odd){left:0;text-align:right}.ev:nth-child(even){left:50%}
.ev .dot{position:absolute;top:18px;width:20px;height:20px;border-radius:50%;background:#fff;border:4px solid var(--river)}
.ev:nth-child(odd) .dot{right:-10px}.ev:nth-child(even) .dot{left:-10px}
.ev.army .dot{border-color:#4a5bd4}.ev.emig .dot{border-color:var(--sun)}.ev.river .dot{border-color:var(--river)}.ev.now .dot{border-color:var(--sage)}
.ev .box{display:inline-block;text-align:left;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden;width:100%;cursor:pointer;transition:transform .2s;font:inherit;color:inherit;padding:0}
.ev .box:hover{transform:translateY(-2px)}.ev .box img{width:100%;aspect-ratio:16/8;object-fit:cover}
.ev .txt{padding:16px 18px}.ev .date{font-weight:800;color:var(--sun2);font-size:.88rem;letter-spacing:.04em}.ev h3{margin:4px 0 6px;font-size:1.18rem}
.ev .more{display:none;font-size:.95rem;color:var(--ink2);margin-top:8px}.ev.open .more{display:block}
.ev .src{font-size:.78rem;color:var(--muted);margin-top:8px}
.ev .tag{display:inline-block;font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;padding:2px 8px;border-radius:999px;background:var(--soft);color:var(--ink2)}
.ev.hide{display:none}.ev{opacity:0;transform:translateY(24px);transition:opacity .6s,transform .6s}.ev.seen{opacity:1;transform:none}
@media(max-width:760px){.tl::before{left:14px}.ev,.ev:nth-child(even){width:100%;left:0;text-align:left;padding:0 0 30px 42px}.ev:nth-child(odd) .dot,.ev:nth-child(even) .dot{left:4px;right:auto}}
@media(prefers-reduced-motion:reduce){.ev{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}.person .in{transition:none}}
/* quiz */
.quiz{max-width:760px;margin:0 auto}.qcard{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:30px}
.qbar{height:8px;background:var(--soft);border-radius:8px;overflow:hidden;margin-bottom:20px}.qbar i{display:block;height:100%;background:linear-gradient(90deg,var(--river),var(--sun));width:0;transition:width .3s}
.opts{display:grid;gap:10px;margin:18px 0}.opt{text-align:left;border:2px solid var(--line);background:#fff;border-radius:14px;padding:14px 16px;font:inherit;font-weight:600;cursor:pointer;color:var(--ink)}
.opt:hover{border-color:var(--river)}.opt.right{border-color:var(--sage);background:#e8f6ee}.opt.wrong{border-color:#d33;background:#fdeceb}.opt:disabled{cursor:default}
.explain{background:var(--soft);border-radius:14px;padding:14px 16px;font-size:.95rem;display:none}.explain.show{display:block}
.score{font-family:Fraunces,serif;font-size:4rem;color:var(--sun);line-height:1}
/* kids */
.kidhero{background:linear-gradient(135deg,#fff4d6,#ffe1cc 50%,#d9f3f6);padding:130px 0 70px}
.kbox{background:#fff;border-radius:22px;padding:26px;box-shadow:var(--shadow);border:1px solid var(--line)}
.kgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}@media(max-width:860px){.kgrid{grid-template-columns:1fr}}
.kgrid .kbox h3{display:flex;gap:10px;align-items:center}.emoji{font-size:1.6rem}
.mapgame{display:grid;grid-template-columns:1fr 260px;gap:20px;align-items:start}@media(max-width:860px){.mapgame{grid-template-columns:1fr}}
.mapgame svg{width:100%;height:auto;background:#fdf6e9;border-radius:18px;border:1px solid var(--line);touch-action:none}
.labels{display:flex;flex-wrap:wrap;gap:8px}.lbl{background:var(--river);color:#fff;border:0;border-radius:999px;padding:10px 14px;font-weight:700;cursor:grab;font:inherit;font-weight:700;touch-action:none;user-select:none}
.lbl.sel{outline:3px solid var(--gold)}.lbl.done{background:var(--sage);cursor:default}
.target{cursor:pointer}
/* downloads */
.dl{display:flex;gap:18px;align-items:center;padding:22px}.dl .ic{width:58px;height:70px;border-radius:8px;background:linear-gradient(135deg,var(--sun),var(--gold));display:grid;place-items:center;color:#fff;font-weight:800;flex:none}
/* signup */
.signup{background:linear-gradient(135deg,#0b8fa3,#16182b);color:#fff;border-radius:26px;padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.signup h2{color:#fff}.signup form{display:flex;gap:10px;flex-wrap:wrap}.signup input{flex:1 1 220px;padding:15px 18px;border-radius:999px;border:0;font:inherit}
.signup .msg{width:100%;font-size:.92rem;min-height:1.2em}
@media(max-width:860px){.signup{grid-template-columns:1fr;padding:28px}}
/* faq */
.faq details{border-bottom:1px solid var(--line);padding:16px 0}.faq summary{font-weight:700;cursor:pointer;font-size:1.06rem}.faq p{margin:.6em 0 0;color:var(--ink2)}
/* more books */
.more{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media(max-width:760px){.more{grid-template-columns:1fr}}
.more a.card{display:block;padding:26px;text-decoration:none;color:var(--ink);transition:transform .2s}.more a.card:hover{transform:translateY(-3px)}
/* footer */
footer{background:var(--night);color:#b9bdd3;padding:56px 0 36px;font-size:.93rem}footer a{color:#fff}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}@media(max-width:760px){footer .cols{grid-template-columns:1fr}}
.sticky-buy{position:fixed;left:12px;right:12px;bottom:12px;z-index:40;display:none}
@media(max-width:760px){.sticky-buy.show{display:block}.sticky-buy a{width:100%;justify-content:center}}
.prose{max-width:780px}.prose h2{margin-top:1.6em;font-size:1.9rem}.prose p,.prose li{color:var(--ink2)}
.callout{border-left:5px solid var(--sun);background:#fff7f1;padding:16px 20px;border-radius:0 14px 14px 0;margin:22px 0}
.callout.river{border-color:var(--river);background:#eef9fb}
sup a{text-decoration:none;font-weight:700}
.page-top{padding:130px 0 40px;background:linear-gradient(180deg,#eef9fb,#fff)}
.leaflet-container a.leaflet-popup-close-button{width:30px;height:30px;font-size:22px}

.person.flip .b{opacity:1;visibility:visible}.person.flip .f{opacity:0}
@media(max-width:760px){body{padding-bottom:0}footer{padding-bottom:96px}}
/* lead magnet corner offer */
.lm-offer{position:fixed;left:16px;bottom:16px;z-index:40;display:flex;align-items:center;gap:10px;max-width:330px;padding:10px 8px 10px 12px;border-radius:14px;background:#0f172a;color:#fff;box-shadow:0 10px 30px rgba(0,0,0,.25);transition:opacity .2s ease,transform .2s ease}
.lm-offer-hidden{opacity:0;visibility:hidden;pointer-events:none;transform:translateY(8px)}
.lm-offer-badge{flex:0 0 auto;padding:4px 7px;border-radius:6px;background:#e2531a;font-size:.7rem;font-weight:800;letter-spacing:.05em}
.lm-offer-link{display:flex;flex-direction:column;color:#fff;text-decoration:none;line-height:1.2;min-height:40px;justify-content:center}
.lm-offer-link strong{font-size:.92rem}
.lm-offer-link span{font-size:.8rem;color:#cbd5e1}
.lm-offer-x{flex:0 0 auto;width:36px;height:36px;border:0;border-radius:8px;background:transparent;color:#cbd5e1;font-size:22px;line-height:1;cursor:pointer}
@media (max-width:640px){.lm-offer{left:10px;right:auto;bottom:calc(10px + env(safe-area-inset-bottom));max-width:calc(100vw - 20px)}}
@media (prefers-reduced-motion:reduce){.lm-offer{transition:none}}
.lm-offer .lm-offer-link,.lm-offer .lm-offer-link strong{color:#fff!important;text-decoration:none!important}
.lm-offer .lm-offer-link span{color:#cbd5e1!important}
.lm-offer[hidden]{display:none!important}
@media (max-width:640px){.lm-offer{bottom:calc(74px + env(safe-area-inset-bottom))}}