/* etatsunis.org — feuille de style unique. Palette bleu-blanc-rouge (France × États-Unis). */
:root{
  --bleu:#0a3161;      /* Old Glory Blue */
  --bleu-2:#1f4e9c;
  --bleu-fr:#002395;   /* bleu du drapeau français */
  --rouge:#b31942;     /* Old Glory Red */
  --rouge-fr:#ed2939;  /* rouge du drapeau français */
  --encre:#14213d;
  --texte:#28324a;
  --doux:#5b6478;
  --fond:#ffffff;
  --fond-2:#f4f6fb;
  --fond-3:#e9eef7;
  --ligne:#d9dfeb;
  --lien:#1f4e9c;
  --ombre:0 1px 2px rgba(10,49,97,.06),0 4px 16px rgba(10,49,97,.06);
  --carte:#1f4e9c;
  --r:10px;
  --w:74rem;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --encre:#eef2fa;--texte:#d5dbe8;--doux:#9aa4ba;--fond:#0d1526;--fond-2:#131d33;--fond-3:#1a2742;
    --ligne:#26344f;--lien:#8fb3ff;--bleu-2:#8fb3ff;--ombre:none;--carte:#2d5fb8;
  }
}
:root[data-theme="dark"]{
  --encre:#eef2fa;--texte:#d5dbe8;--doux:#9aa4ba;--fond:#0d1526;--fond-2:#131d33;--fond-3:#1a2742;
  --ligne:#26344f;--lien:#8fb3ff;--bleu-2:#8fb3ff;--ombre:none;--carte:#2d5fb8;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:1rem}
body{margin:0;background:var(--fond);color:var(--texte);font:400 1.0625rem/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;overflow-wrap:break-word}
img,svg{max-width:100%;height:auto}
a{color:var(--lien);text-decoration-thickness:1px;text-underline-offset:2px}
a:hover{color:var(--rouge)}
h1,h2,h3{color:var(--encre);line-height:1.25;letter-spacing:-.01em}
h1{font-size:clamp(1.75rem,1.2rem + 2.4vw,2.6rem);margin:.4rem 0 .6rem}
h2{font-size:clamp(1.3rem,1.1rem + .9vw,1.65rem);margin:2.4rem 0 .8rem;padding-top:.2rem}
h3{font-size:1.15rem;margin:1.6rem 0 .5rem}
p,ul,ol{margin:0 0 1rem}
li{margin:.25rem 0}
.wrap{max-width:var(--w);margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:9}

/* En-tête : liseré tricolore */
.site-header{background:var(--bleu);color:#fff;position:relative}
.site-header::after{content:"";display:block;height:4px;background:linear-gradient(90deg,var(--bleu-fr) 0 33.3%,#fff 33.3% 66.6%,var(--rouge-fr) 66.6%)}
.hd{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:60px}
.logo{display:flex;align-items:center;gap:.55rem;color:#fff;text-decoration:none;font-weight:800;font-size:1.2rem;letter-spacing:-.02em}
.logo:hover{color:#fff}
.logo .lt span{color:#ffb3c1;font-weight:600}
.logo svg{width:34px;height:18px;border-radius:2px;flex:none;box-shadow:0 0 0 1px rgba(255,255,255,.35)}
.nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.15rem}
.nav a,.nav span{display:block;color:#fff;text-decoration:none;padding:.45rem .65rem;border-radius:6px;font-weight:600;font-size:.95rem}
.nav a:hover,.nav a[aria-current="page"]{background:rgba(255,255,255,.14);color:#fff}
.menu-btn{display:none;background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;border-radius:6px;padding:.4rem .7rem;font:inherit;font-weight:600;cursor:pointer}
@media (max-width:900px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:64px;background:var(--bleu);z-index:20;padding:.5rem 16px 1rem;box-shadow:0 8px 20px rgba(0,0,0,.25)}
  .nav.open{display:block}
  .nav ul{flex-direction:column}
  .nav a{padding:.7rem .5rem;font-size:1.05rem}
}

/* Fil d'Ariane */
.crumbs{font-size:.88rem;color:var(--doux);margin:1rem 0 0}
.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap}
.crumbs li{margin:0}
.crumbs li+li::before{content:"›";margin:0 .45rem;color:var(--doux)}
.crumbs a{color:var(--doux)}

/* Contenu */
main{padding-bottom:3rem}
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:2.5rem}
@media (min-width:1080px){.layout{grid-template-columns:minmax(0,1fr) 18rem}}
.article{max-width:48rem}
.lead{font-size:1.2rem;color:var(--encre);line-height:1.55;margin-bottom:1.2rem}
.meta{font-size:.85rem;color:var(--doux);margin-bottom:1.4rem}
.meta time{font-variant-numeric:tabular-nums}

/* Bloc chiffres clés */
.key{background:var(--fond-2);border:1px solid var(--ligne);border-left:5px solid var(--bleu);border-radius:var(--r);padding:1rem 1.2rem;margin:1.2rem 0 1.6rem}
.key dl{display:grid;grid-template-columns:repeat(auto-fill,minmax(12.5rem,1fr));gap:.7rem 1.4rem;margin:0}
.key dl div{min-width:0}
.key dt{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--doux);font-weight:700}
.key dd{margin:0;color:var(--encre);font-weight:600}

.note{background:var(--fond-3);border-left:4px solid var(--rouge);border-radius:0 var(--r) var(--r) 0;padding:.9rem 1.1rem;margin:1.2rem 0}
.note p:last-child{margin:0}
blockquote{margin:1.2rem 0;padding:.4rem 1.2rem;border-left:4px solid var(--bleu-2);color:var(--encre);font-style:italic}

/* Sommaire */
.toc{background:var(--fond-2);border:1px solid var(--ligne);border-radius:var(--r);padding:.9rem 1.2rem;margin:1.4rem 0;font-size:.95rem}
.toc p{margin:0 0 .3rem;font-weight:700;color:var(--encre)}
.toc ol{margin:0;padding-left:1.2rem;columns:2 16rem;column-gap:2rem}
.toc li{margin:.15rem 0;break-inside:avoid}

/* Tableaux */
.tbl-wrap{overflow-x:auto;margin:1rem 0 1.4rem;border:1px solid var(--ligne);border-radius:var(--r)}
.tbl{width:100%;border-collapse:collapse;font-size:.95rem}
.tbl th,.tbl td{padding:.55rem .75rem;text-align:left;border-bottom:1px solid var(--ligne);vertical-align:top}
.tbl thead th{background:var(--bleu);color:#fff;font-weight:700;white-space:nowrap;position:sticky;top:0}
.tbl tbody tr:nth-child(even){background:var(--fond-2)}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl .n{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}

/* Listes "à voir" */
.cards{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:.8rem}
.cards li{margin:0;background:var(--fond-2);border:1px solid var(--ligne);border-radius:var(--r);padding:.8rem 1rem}
.cards strong{display:block;color:var(--encre)}

/* FAQ */
.faq details{border:1px solid var(--ligne);border-radius:var(--r);margin:.55rem 0;background:var(--fond)}
.faq summary{cursor:pointer;padding:.8rem 1rem;font-weight:650;color:var(--encre);list-style:none;position:relative;padding-right:2.4rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:1rem;top:.65rem;font-size:1.3rem;color:var(--rouge)}
.faq details[open] summary::after{content:"–"}
.faq details>*:not(summary){padding:0 1rem}
.faq details p:last-child{margin-bottom:.9rem}
.sources{font-size:.9rem;color:var(--doux)}

/* Cartes */
.map{position:relative;aspect-ratio:16/10;background:var(--fond-3);border:1px solid var(--ligne);border-radius:var(--r);overflow:hidden;margin:1rem 0 1.4rem;z-index:0}
.map-load{position:absolute;inset:0;margin:auto;width:max-content;height:max-content;background:var(--bleu);color:#fff;border:0;border-radius:999px;padding:.7rem 1.2rem;font:inherit;font-weight:700;cursor:pointer;box-shadow:var(--ombre)}
.map-load:hover{background:var(--rouge)}
@media (max-width:600px){.map{aspect-ratio:4/5}}
.svgmap{margin:1rem 0 1.4rem}
.svgmap svg{display:block;width:100%;height:auto}
.svgmap path{stroke:#fff;stroke-width:.8;stroke-linejoin:round;transition:fill .15s,opacity .15s}
.svgmap.plain path{fill:var(--carte)}
.svgmap.plain a:hover path,.svgmap.plain a:focus path{fill:var(--rouge)}
.svgmap a:hover path{opacity:.75}
.svgmap.plain a:hover path{opacity:1}
.svgmap.vierge path{fill:#fff;stroke:#334;stroke-width:.9}
.svgmap text{font:700 9px system-ui,sans-serif;fill:#fff;paint-order:stroke;stroke:rgba(10,31,63,.75);stroke-width:2px;pointer-events:none;text-anchor:middle}
.svgmap.vierge text{display:none}
.legend{display:flex;flex-wrap:wrap;gap:.4rem 1rem;font-size:.88rem;margin:.4rem 0 0;padding:0;list-style:none}
.legend li{display:flex;align-items:center;gap:.4rem;margin:0}
.legend i{width:14px;height:14px;border-radius:3px;display:inline-block}
@media print{.site-header,.site-footer,.crumbs,.side,.related,.toc{display:none}.svgmap.vierge{break-inside:avoid}}

/* Horloges */
.clocks{display:grid;grid-template-columns:repeat(auto-fill,minmax(11rem,1fr));gap:.7rem;margin:1rem 0 1.4rem}
.clock{background:var(--bleu);color:#fff;border-radius:var(--r);padding:.8rem 1rem;text-decoration:none;display:block}
a.clock:hover{background:var(--rouge);color:#fff}
.clock b{display:block;font-size:.9rem;font-weight:600;opacity:.9}
.clock time{display:block;font-size:1.65rem;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.01em;min-height:2.2rem}
.clock small{display:block;font-size:.8rem;opacity:.85;min-height:1.1rem}
.clock.big{text-align:center;padding:1.4rem 1rem;grid-column:1/-1}
.clock.big time{font-size:clamp(2.6rem,2rem + 4vw,4rem);min-height:4.6rem}
.clocks.sm .clock{background:var(--fond-2);color:var(--encre);border:1px solid var(--ligne)}
.clocks.sm .clock time{font-size:1.25rem;min-height:1.7rem}
.clocks.sm a.clock:hover{border-color:var(--rouge);color:var(--encre);background:var(--fond-3)}
.conv{background:var(--fond-2);border:1px solid var(--ligne);border-radius:var(--r);padding:1rem 1.2rem;margin:1rem 0}
.conv label{font-weight:600;margin-right:.5rem}
.conv input,.conv select{font:inherit;padding:.4rem .5rem;border:1px solid var(--ligne);border-radius:6px;background:var(--fond);color:var(--texte)}
.conv output{display:block;margin-top:.8rem}

/* Drapeaux */
.flags{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(9.5rem,1fr));gap:.9rem}
.flags li{margin:0;text-align:center;font-size:.92rem}
.flags img{display:block;width:100%;aspect-ratio:3/2;object-fit:contain;background:var(--fond-2);border:1px solid var(--ligne);border-radius:6px;margin-bottom:.35rem}
.flag-hero{display:block;width:min(100%,22rem);aspect-ratio:19/10;margin:1rem 0;border:1px solid var(--ligne)}
.flag-inline{float:right;width:9rem;margin:0 0 1rem 1.2rem;border:1px solid var(--ligne);border-radius:4px;aspect-ratio:3/2;object-fit:contain;background:var(--fond-2)}

/* Encadrés latéraux et liens */
.side{font-size:.95rem}
.side .box{background:var(--fond-2);border:1px solid var(--ligne);border-radius:var(--r);padding:1rem 1.1rem;margin-bottom:1rem}
.side h2{font-size:1rem;margin:0 0 .5rem;text-transform:uppercase;letter-spacing:.05em;color:var(--rouge)}
.side ul{list-style:none;padding:0;margin:0}
.side li{margin:.35rem 0}
@media (min-width:1080px){.side .sticky{position:sticky;top:1rem}}
.related{border-top:3px solid var(--bleu);margin-top:2.5rem;padding-top:1rem}
.related ul{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(14rem,1fr));gap:.3rem 1.4rem}
.pager{display:flex;justify-content:space-between;gap:1rem;margin:2rem 0 0;flex-wrap:wrap}
.pager a{font-weight:600}
.pills{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:.45rem}
.pills li{margin:0}
.pills a{display:inline-block;padding:.3rem .75rem;border:1px solid var(--ligne);border-radius:999px;text-decoration:none;background:var(--fond-2);font-size:.92rem}
.pills a:hover{border-color:var(--rouge)}

/* Accueil */
.hero{background:linear-gradient(135deg,var(--bleu) 0%,#14407f 100%);color:#fff;padding:2.2rem 0 2rem;margin-bottom:1.5rem}
.hero h1{color:#fff;margin-top:0}
.hero p{color:#dfe7f7;font-size:1.15rem;max-width:44rem}
.grid3{display:grid;grid-template-columns:repeat(auto-fill,minmax(16rem,1fr));gap:1rem;margin:1rem 0 2rem}
.tile{display:block;border:1px solid var(--ligne);border-top:4px solid var(--rouge);border-radius:var(--r);padding:1rem 1.1rem;text-decoration:none;color:var(--texte);background:var(--fond);box-shadow:var(--ombre)}
.tile:nth-child(3n+2){border-top-color:var(--bleu)}
.tile:nth-child(3n+3){border-top-color:var(--bleu-fr)}
.tile strong{display:block;color:var(--encre);font-size:1.08rem;margin-bottom:.2rem}
.tile:hover{border-color:var(--rouge);color:var(--texte)}

/* Pied de page */
.site-footer{background:#081f3f;color:#c9d3e6;padding:2.5rem 0 1.5rem;font-size:.93rem}
.site-footer::before{content:"";display:block;height:4px;margin-top:-2.5rem;margin-bottom:2.3rem;background:linear-gradient(90deg,var(--bleu-fr) 0 33.3%,#fff 33.3% 66.6%,var(--rouge-fr) 66.6%)}
.site-footer a{color:#e8eefa;text-decoration:none}
.site-footer a:hover{color:#ffb3c1;text-decoration:underline}
.fcols{display:grid;grid-template-columns:repeat(auto-fill,minmax(11rem,1fr));gap:1.4rem}
.fcols h2{color:#fff;font-size:.95rem;text-transform:uppercase;letter-spacing:.06em;margin:0 0 .5rem}
.fcols ul{list-style:none;padding:0;margin:0}
.fcols li{margin:.3rem 0}
.fbot{border-top:1px solid #1d3a66;margin-top:2rem;padding-top:1rem;display:flex;flex-wrap:wrap;gap:.5rem 1.2rem;justify-content:space-between}

/* Graphique climatique */
.chart{margin:1rem 0 1.2rem}
.chart svg{display:block;width:100%;height:auto;background:var(--fond-2);border:1px solid var(--ligne);border-radius:var(--r)}
.chart .gr{stroke:var(--ligne);stroke-width:1}
.chart .ax{font:500 11px system-ui,sans-serif;fill:var(--doux)}
.chart .pl{fill:#a9c1e6;opacity:.85}
.chart polyline{fill:none;stroke-width:2.5;stroke-linejoin:round}
.chart polyline.tx{stroke:#b31942}.chart polyline.tn{stroke:#1f4e9c}
.chart circle.tx{fill:#b31942}.chart circle.tn{fill:#1f4e9c}

/* Carte d'un État */
.statemap svg{background:var(--fond-2);border:1px solid var(--ligne);border-radius:var(--r);max-height:640px}
.statemap .st{fill:var(--fond);stroke:var(--bleu);stroke-width:2;stroke-linejoin:round}
.statemap .ci{fill:#b31942;stroke:#fff;stroke-width:1.5}
.statemap .cap{fill:#0a3161;stroke:#fff;stroke-width:1}
.statemap .pk{fill:#2f7d4f;stroke:#fff;stroke-width:1}
.statemap .sx{fill:#e08a3c;stroke:#fff;stroke-width:1}
.statemap a:hover .ci,.statemap a:hover .pk,.statemap a:hover .sx{fill:var(--rouge)}
.statemap text{font:600 13px system-ui,sans-serif;fill:var(--encre);stroke:var(--fond);stroke-width:3px;paint-order:stroke;text-anchor:start}

/* Téléchargements */
.flags.dl img{aspect-ratio:3/2;object-fit:contain;padding:6px;background:#fff}
.flags.dl li{text-align:left}
.dlbox dd a{font-weight:600}

/* Outils */
.tool p{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem .6rem;margin:0 0 .7rem}
.tool input[type=number]{width:8rem}
.tool select{max-width:100%}
.units .u{display:grid;grid-template-columns:1fr auto 1fr;gap:.6rem;align-items:end;margin:0 0 .7rem}
.units label{display:flex;flex-direction:column;font-size:.9rem;font-weight:600;gap:.2rem}
.units input{width:100%}
.units span{padding-bottom:.45rem;color:var(--doux)}

/* Recettes */
.ingredients{columns:2 15rem;column-gap:2rem;padding-left:1.1rem}
.ingredients li{break-inside:avoid}
.etapes{counter-reset:e;list-style:none;padding:0}
.etapes li{counter-increment:e;position:relative;padding:.2rem 0 .8rem 2.6rem;margin:0}
.etapes li::before{content:counter(e);position:absolute;left:0;top:.1rem;width:1.8rem;height:1.8rem;border-radius:50%;background:var(--bleu);color:#fff;font-weight:700;display:grid;place-items:center;font-size:.9rem}
.flag-big{display:block;width:min(100%,30rem);height:auto;aspect-ratio:3/2;object-fit:contain;margin:.5rem 0 1rem;border:1px solid var(--ligne);border-radius:6px;background:var(--fond-2)}

/* Quiz */
.quiz{background:var(--fond-2);border:1px solid var(--ligne);border-radius:var(--r);padding:1rem 1.2rem;margin:1rem 0 1.4rem}
.q-prompt{font-size:1.2rem;font-weight:700;color:var(--encre);min-height:1.8rem}
.q-options{display:grid;grid-template-columns:repeat(auto-fill,minmax(13rem,1fr));gap:.6rem;margin:.8rem 0}
.q-options button,.q-restart{font:inherit;padding:.7rem .9rem;border:1px solid var(--ligne);border-radius:8px;background:var(--fond);color:var(--encre);cursor:pointer;text-align:left}
.q-options button:hover{border-color:var(--bleu-2)}
.q-options button.ok{background:#2f7d4f;color:#fff;border-color:#2f7d4f}
.q-options button.ko{background:var(--rouge);color:#fff;border-color:var(--rouge)}
.q-media img{display:block;width:min(100%,18rem);aspect-ratio:3/2;object-fit:contain;background:#fff;border:1px solid var(--ligne);border-radius:6px}
.q-score{font-weight:600;min-height:1.5rem}
.quizmap path{fill:var(--carte);cursor:pointer}
.quizmap path:hover{fill:var(--bleu-2);opacity:.8}
.quizmap path.ok{fill:#2f7d4f}
.quizmap path.ko{fill:var(--rouge)}
.quizmap path.hint{fill:#e6b422}