/* ==========================================================================
   L'Observatoire (/ai/observatoire/) : toutes les règles sont préfixées par .obsv pour ne rien changer ailleurs sur le site.
   Polices et couleurs du site (variables de style.css) ; la page est rendue par PHP (site/app/lib/obs_page.php).
   ========================================================================== */
.obsv {
  --ink: var(--marine, #0B1626);
  --gold: #8A6F2A;            /* or foncé : lisible sur fond clair */
  --gold-soft: #F1E8D2;
  --gold-vif: var(--or, #CDAF60);
  --sig-a: #E0882E; --sig-b: #D9B24C;
  --river: #3D7EA6;
  --paper: #F4F6F8;
  --card: #FFFFFF;
  --fg: #14213A;
  --muted: #5B6880;
  --line: #DCE2EA;
  --up: #1F8A5B; --down: #C2410C; --flat: #64748B;
  --dpeA: #00845A; --dpeB: #2EA84A; --dpeC: #9BC93F; --dpeD: #F2D21B; --dpeE: #F0A82C; --dpeF: #E6692A; --dpeG: #D2232A;
  --band: var(--marine, #0B1626); --band-fg: #FFFFFF; --band-muted: #A9B6CC; --band-line: rgba(255, 255, 255, .12);
  --f-display: var(--police-sans);
  --f-quote: var(--police-serif);
  --f-mono: var(--police-mono);
  background: var(--paper);
  color: var(--fg);
  font-family: var(--f-display);
  font-size: 16px;
  line-height: 1.55;
}
@media (prefers-color-scheme: dark) {
  .obsv {
    --paper: #0A1325; --card: #111D35; --fg: #E8EDF6; --muted: #9AA8C0; --line: #22314F;
    --gold: #E2AC4A; --gold-soft: #3A2E1A; --gold-vif: #E2AC4A; --river: #6FA8CF; --up: #4ADE80; --down: #FB923C; --flat: #94A3B8;
    --band: #060D1C; --band-fg: #EEF2F8; --band-muted: #9AA8C0;
    color-scheme: dark;
  }
}
.obsv *, .obsv *::before, .obsv *::after { box-sizing: border-box; }
.obsv a { color: inherit; }
.obsv .wrap { max-width: 1180px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.obsv .num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.obsv .mono { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .04em; }
.obsv .mut { color: var(--muted); }
.obsv .eyebrow { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.obsv h1, .obsv h2, .obsv h3 { text-wrap: balance; margin: 0; font-family: var(--f-display); }
.obsv :focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 6px; }

/* ---------- hero ---------- */
.obsv .hero { background: var(--band); color: var(--band-fg); padding-block: 44px 40px; position: relative; overflow: hidden; }
.obsv .hero::after { content: ""; position: absolute; inset: auto 0 0 0; height: 1px; background: linear-gradient(90deg, transparent, var(--gold-vif), transparent); opacity: .5; }
.obsv .hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
@media (max-width: 900px) { .obsv .hero-grid { grid-template-columns: 1fr; gap: 26px; } }
.obsv .stamp { display: inline-flex; align-items: center; gap: 10px; border: 1px solid var(--band-line); border-radius: 999px; padding: 6px 14px 6px 8px; font-family: var(--f-mono); font-size: .72rem; letter-spacing: .06em; color: var(--band-muted); }
.obsv .stamp i { width: 8px; height: 8px; border-radius: 50%; background: #34D399; box-shadow: 0 0 0 4px rgba(52, 211, 153, .18); animation: obs-pulse 2.4s infinite; flex: none; }
@keyframes obs-pulse { 50% { box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); } }
.obsv .hero h1 { font-size: clamp(2.2rem, 5.4vw, 4.1rem); line-height: 1; font-weight: 700; letter-spacing: -.02em; margin: 18px 0 18px; color: var(--band-fg); }
.obsv .hero h1 em { font-style: normal; color: var(--gold-vif); }
.obsv .hero .lede { font-family: var(--f-quote); font-size: 1.32rem; line-height: 1.45; color: #D7DEEA; max-width: 34em; font-style: italic; margin: 0; }
.obsv .hero .lede b, .obsv .hero .lede strong { font-family: var(--f-display); font-style: normal; font-weight: 600; font-size: .86em; color: var(--band-fg); }
.obsv .sig { margin: 14px 0 0; font-family: var(--f-mono); font-size: .72rem; color: var(--band-muted); letter-spacing: .05em; }
.obsv .headline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 30px; border-top: 1px solid var(--band-line); }
.obsv .headline div { padding: 14px 14px 0 0; }
.obsv .headline div + div { padding-left: 14px; border-left: 1px solid var(--band-line); }
.obsv .headline strong { display: block; white-space: nowrap; font-size: clamp(1.2rem, 2vw, 1.7rem); font-weight: 700; color: var(--band-fg); }
.obsv .headline span { font-size: .78rem; color: var(--band-muted); line-height: 1.3; display: block; margin-top: 2px; }
@media (max-width: 600px) { .obsv .headline { grid-template-columns: 1fr 1fr; } .obsv .headline div:nth-child(3) { border-left: 0; padding-left: 0; } }

/* carte : ligne du Doubs */
.obsv .riverbox { background: rgba(255, 255, 255, .035); border: 1px solid var(--band-line); border-radius: 20px; padding: 16px 16px 10px; }
.obsv .riverbox .cap { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 6px; }
.obsv .riverbox .cap span { font-family: var(--f-mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase; color: var(--band-muted); }
.obsv .riverbox svg { width: 100%; height: auto; display: block; }
.obsv .st { cursor: pointer; text-decoration: none; }
.obsv .st circle.o { fill: var(--band); stroke: var(--gold-vif); stroke-width: 2.5; transition: r .2s; }
.obsv .st circle.i { fill: var(--gold-vif); opacity: 0; transition: opacity .2s; }
.obsv .st text { fill: var(--band-fg); font-family: var(--f-display); font-size: 12px; font-weight: 600; }
.obsv .st text.p { fill: var(--band-muted); font-family: var(--f-mono); font-size: 9.5px; font-weight: 400; }
.obsv .st:hover circle.o, .obsv .st.on circle.o { r: 10; }
.obsv .st.on circle.i { opacity: 1; }
.obsv .st.on text:not(.p) { fill: var(--gold-vif); }

/* ---------- sections ---------- */
.obsv .sec { padding-block: 56px 8px; }
.obsv .sec-h { display: flex; align-items: end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.obsv .sec-h h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); font-weight: 700; letter-spacing: -.015em; line-height: 1.08; margin-top: 6px; }
.obsv .sec-h p { margin: 6px 0 0; color: var(--muted); max-width: 44em; }

/* onglets */
.obsv .tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.obsv .tab { border: 1px solid var(--line); background: var(--card); color: var(--fg); font: inherit; font-size: .92rem; font-weight: 600; padding: 9px 16px; border-radius: 999px; cursor: pointer; display: flex; align-items: center; gap: 8px; text-decoration: none; }
.obsv .tab small { font-weight: 400; color: var(--muted); font-size: .74rem; }
.obsv .tab[aria-selected="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
@media (prefers-color-scheme: dark) { .obsv .tab[aria-selected="true"] { background: var(--gold); border-color: var(--gold); color: #0E1B33; } }
.obsv .tab[aria-selected="true"] small { color: inherit; opacity: .75; }
/* sans JavaScript, tous les panneaux s'affichent ; avec JavaScript, seul le panneau actif */
.obsv.obs-js .panel:not(.is-active) { display: none; }
.obsv .panels { display: grid; gap: 22px; }
.obsv:not(.obs-js) .tabs .tab { font-weight: 500; }
.obsv:not(.obs-js) .btn-mini { display: none; }

/* panneau secteur */
.obsv .panel { background: var(--card); border: 1px solid var(--line); border-radius: 22px; overflow: hidden; scroll-margin-top: 90px; }
.obsv .p-head { display: grid; grid-template-columns: 1fr auto; gap: 18px; padding: 26px 28px 0; }
@media (max-width: 700px) { .obsv .p-head { grid-template-columns: 1fr; padding: 20px 18px 0; } }
.obsv .p-head h3 { font-size: clamp(1.6rem, 3.6vw, 2.4rem); font-weight: 700; letter-spacing: -.015em; line-height: 1.05; margin-top: 6px; }
.obsv .p-head .sub { color: var(--muted); font-size: .9rem; margin-top: 6px; }
.obsv .verdict { align-self: start; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
@media (max-width: 700px) { .obsv .verdict { align-items: flex-start; } }
.obsv .gauge { display: flex; gap: 3px; }
.obsv .gauge span { width: 26px; height: 8px; border-radius: 2px; background: var(--line); }
.obsv .gauge span.on { background: var(--gold-vif); }
.obsv .chip { display: inline-flex; align-items: center; gap: 6px; font-size: .8rem; font-weight: 700; padding: 5px 11px; border-radius: 999px; background: var(--gold-soft); color: var(--fg); }
.obsv .cite { margin: 22px 28px 0; padding: 18px 22px; border-left: 3px solid var(--gold-vif); background: linear-gradient(90deg, var(--gold-soft), transparent 85%); border-radius: 0 12px 12px 0; }
@media (max-width: 700px) { .obsv .cite { margin: 18px 18px 0; } }
.obsv .cite p { margin: 0; font-family: var(--f-quote); font-size: clamp(1.2rem, 2vw, 1.45rem); line-height: 1.4; }
.obsv .cite p b, .obsv .cite p strong { font-family: var(--f-display); font-weight: 700; font-size: .82em; }
.obsv .cite .an { margin-top: 8px; font-style: italic; color: var(--muted); font-size: 1.1rem; }
.obsv .cite .copy { margin-top: 10px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.obsv .cite .src-c { color: var(--muted); }
.obsv .btn-mini { border: 1px solid var(--line); background: var(--card); color: var(--fg); font: inherit; font-size: .78rem; padding: 5px 10px; border-radius: 8px; cursor: pointer; }
.obsv .btn-mini:hover { border-color: var(--gold-vif); }

.obsv .kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 24px 28px 0; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
@media (max-width: 900px) { .obsv .kpis { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .obsv .kpis { margin: 18px 18px 0; } }
.obsv .kpi { padding: 16px 18px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); min-width: 0; margin: 0 -1px -1px 0; }
.obsv .kpi .l { font-size: .8rem; color: var(--muted); display: flex; justify-content: space-between; gap: 8px; }
.obsv .kpi .v { font-size: clamp(1.5rem, 2.8vw, 2rem); font-weight: 700; line-height: 1.1; margin-top: 6px; letter-spacing: -.01em; }
.obsv .kpi .v small { font-size: .5em; font-weight: 600; color: var(--muted); margin-left: 3px; letter-spacing: 0; }
.obsv .kpi .f { display: flex; align-items: center; gap: 8px; margin-top: 6px; font-size: .76rem; color: var(--muted); flex-wrap: wrap; }
.obsv .delta { font-weight: 700; font-size: .76rem; padding: 2px 7px; border-radius: 6px; }
.obsv .delta.up { color: var(--up); background: color-mix(in srgb, var(--up) 12%, transparent); }
.obsv .delta.down { color: var(--down); background: color-mix(in srgb, var(--down) 12%, transparent); }
.obsv .delta.flat { color: var(--flat); background: color-mix(in srgb, var(--flat) 14%, transparent); }
.obsv .tag { font-family: var(--f-mono); font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; padding: 2px 6px; border-radius: 4px; border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.obsv .tag.m { border-color: var(--river); color: var(--river); }
.obsv .tag.e { border-style: dashed; }

.obsv .p-body { display: grid; grid-template-columns: 1.15fr .85fr; gap: 0; margin-top: 24px; border-top: 1px solid var(--line); }
@media (max-width: 900px) { .obsv .p-body { grid-template-columns: 1fr; } }
.obsv .blk { padding: 22px 28px; min-width: 0; }
@media (max-width: 700px) { .obsv .blk { padding: 18px; } }
.obsv .blk + .blk { border-left: 1px solid var(--line); }
@media (max-width: 900px) { .obsv .blk + .blk { border-left: 0; border-top: 1px solid var(--line); } }
.obsv .blk h4, .obsv .card h4 { margin: 0 0 14px; font-size: .78rem; font-family: var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 500; }

/* échelle de prix */
.obsv .ladder { display: grid; gap: 10px; }
.obsv .lrow { display: grid; grid-template-columns: 118px 1fr 74px; gap: 10px; align-items: center; font-size: .86rem; }
.obsv .lrow .bar { height: 12px; background: var(--line); border-radius: 3px; position: relative; overflow: hidden; }
.obsv .lrow .bar i { position: absolute; inset: 0 auto 0 0; background: var(--river); border-radius: 3px; }
.obsv .lrow.me .bar i { background: var(--gold-vif); }
.obsv .lrow.me { font-weight: 700; }
.obsv .lrow b { text-align: right; font-weight: 700; }

/* DPE */
.obsv .dpe { display: flex; height: 34px; border-radius: 8px; overflow: hidden; margin-bottom: 10px; }
.obsv .dpe span { display: grid; place-items: center; color: #fff; font-weight: 700; font-size: .8rem; min-width: 0; }
.obsv .dpe span.lt { color: #1a1a1a; }
.obsv .dpe-leg { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; font-size: .84rem; }
.obsv .dpe-leg b { font-size: 1.25rem; font-weight: 700; }
.obsv .dpe-leg .bad b { color: var(--dpeG); }
.obsv .dpe-leg .good b { color: var(--dpeB); }
.obsv .note { font-size: .76rem; color: var(--muted); margin: 10px 0 0; line-height: 1.45; }
.obsv .retenir { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.obsv .retenir li { display: grid; grid-template-columns: 22px 1fr; gap: 8px; font-size: .95rem; line-height: 1.45; }
.obsv .retenir li::before { content: ""; width: 10px; height: 10px; margin-top: 7px; border: 2px solid var(--gold-vif); transform: rotate(45deg); }
.obsv .lst { display: grid; gap: 8px; }
.obsv .lst a, .obsv .lst .lst-i { display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; text-decoration: none; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; font-size: .86rem; }
.obsv .lst a:hover { border-color: var(--gold-vif); }
.obsv .lst b { font-weight: 700; }
.obsv .lst span { color: var(--muted); font-size: .78rem; }
.obsv .lst em { font-style: normal; text-align: right; font-weight: 700; }

/* comparateur */
.obsv .tblwrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
.obsv table { border-collapse: collapse; width: 100%; min-width: 760px; font-size: .9rem; }
.obsv th, .obsv td { padding: 12px 14px; text-align: right; border-bottom: 1px solid var(--line); white-space: nowrap; }
.obsv th:first-child, .obsv td:first-child { text-align: left; }
.obsv thead th { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 500; background: color-mix(in srgb, var(--paper) 60%, var(--card)); }
.obsv tbody th { font-weight: 400; }
.obsv tbody tr:hover { background: color-mix(in srgb, var(--gold-vif) 7%, transparent); }
.obsv tbody tr.ref th, .obsv tbody tr.ref td { color: var(--muted); font-style: italic; }
.obsv td .heat { display: inline-block; min-width: 64px; padding: 3px 8px; border-radius: 6px; font-weight: 700; }

/* crédit */
.obsv .credit { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 900px) { .obsv .credit { grid-template-columns: 1fr; } }
.obsv .card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 22px; min-width: 0; }
.obsv .rates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.obsv .rate { border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.obsv .rate .d { font-size: .78rem; color: var(--muted); }
.obsv .rate .t { font-size: clamp(1.5rem, 2.8vw, 2rem); font-weight: 700; }
.obsv .rate .t small { font-size: .45em; }
.obsv .rate.hl { border-color: var(--gold-vif); background: var(--gold-soft); }
.obsv .sim label { display: flex; justify-content: space-between; font-size: .86rem; margin: 14px 0 6px; color: var(--muted); }
.obsv .sim label b { color: var(--fg); }
.obsv .sim input[type=range] { width: 100%; accent-color: var(--gold-vif); }
.obsv .sim .out { margin-top: 18px; padding: 18px; border-radius: 14px; background: var(--band); color: var(--band-fg); display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.obsv .sim .out strong { display: block; font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; color: var(--gold-vif); }
.obsv .sim .out span { font-size: .78rem; color: var(--band-muted); }

/* calendrier */
.obsv .tl { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; border-top: 2px solid var(--fg); margin-top: 8px; }
@media (max-width: 900px) { .obsv .tl { grid-template-columns: 1fr; border-top: 0; border-left: 2px solid var(--fg); margin-left: 6px; } .obsv .tl div { padding: 0 0 18px 20px; } .obsv .tl div::before { top: 2px; left: -7px; } .obsv .tl b { margin-top: 0; } }
.obsv .tl div { padding: 14px 16px 0 0; position: relative; }
.obsv .tl div::before { content: ""; position: absolute; top: -7px; left: 0; width: 12px; height: 12px; border-radius: 50%; background: var(--paper); border: 2px solid var(--fg); }
.obsv .tl div.now::before { background: var(--gold-vif); border-color: var(--gold-vif); }
.obsv .tl b { display: block; font-family: var(--f-mono); font-size: .74rem; letter-spacing: .06em; margin-top: 6px; font-weight: 500; }
.obsv .tl p { margin: 4px 0 0; font-size: .9rem; line-height: 1.4; }

/* actualités */
.obsv .news { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(270px, 100%), 1fr)); gap: 14px; }
.obsv .news a, .obsv .news .news-i { display: flex; flex-direction: column; gap: 8px; text-decoration: none; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; transition: border-color .2s, transform .2s; }
.obsv .news a:hover { border-color: var(--gold-vif); transform: translateY(-2px); }
.obsv .news .meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.obsv .news h3 { font-size: 1.05rem; font-weight: 700; line-height: 1.25; }
.obsv .news p { margin: 0; font-size: .9rem; color: var(--muted); line-height: 1.45; }

/* FAQ */
.obsv .faq { display: grid; gap: 10px; }
.obsv .faq details { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 4px 18px; }
.obsv .faq summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.obsv .faq summary::-webkit-details-marker { display: none; }
.obsv .faq summary::after { content: "+"; color: var(--gold); font-size: 1.3rem; line-height: 1; }
.obsv .faq details[open] summary::after { content: "–"; }
.obsv .faq details p { margin: 0 0 16px; color: var(--fg); max-width: 62em; }
.obsv .changes { display: grid; gap: 8px; list-style: none; padding: 0; margin: 0; }
.obsv .changes li { display: grid; grid-template-columns: 90px 1fr; gap: 12px; font-size: .9rem; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.obsv .changes li span { font-family: var(--f-mono); font-size: .72rem; color: var(--muted); padding-top: 2px; }
.obsv .methode { font-size: .92rem; }
.obsv .src { columns: 2 320px; column-gap: 28px; font-size: .84rem; color: var(--muted); padding-left: 18px; margin: 0; }
.obsv .src li { margin-bottom: 6px; break-inside: avoid; }
.obsv .src a { color: var(--river); }

/* appel à l'action et pied de la page */
.obsv .cta { margin: 64px 0 0; background: var(--band); color: var(--band-fg); border-radius: 24px; padding: 34px; display: grid; grid-template-columns: 1fr auto; gap: 22px; align-items: center; }
@media (max-width: 760px) { .obsv .cta { grid-template-columns: 1fr; padding: 24px; } }
.obsv .cta h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; color: var(--band-fg); }
.obsv .cta p { color: var(--band-muted); margin: 8px 0 0; }
.obsv .cta a { display: inline-block; background: var(--gold-vif); color: #0E1B33; text-decoration: none; font-weight: 700; padding: 15px 24px; border-radius: 12px; white-space: nowrap; }
.obsv .foot { padding-block: 34px 48px; margin: 0; color: var(--muted); font-size: .8rem; }
.obsv .toast { position: fixed; left: 50%; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; font-size: .86rem; z-index: 50; }
@media (prefers-reduced-motion: reduce) { .obsv * { animation: none !important; transition: none !important; } }
@media print { .obsv .riverbox, .obsv .sim, .obsv .tabs { display: none; } }
.obsv .kpi .l { flex-wrap: wrap; align-items: flex-start; }
@media (max-width: 480px) { .obsv .kpis { grid-template-columns: 1fr; } .obsv .lrow { grid-template-columns: 96px 1fr 66px; } .obsv .rates { grid-template-columns: 1fr; } }