/* =========================================================
   CSI UI — tokens + composants partagés (tunnel, composants)
   Dépend des polices : Bricolage Grotesque, Instrument Serif, Manrope
   ========================================================= */
:root{
  --ink:#04212e; --ink-2:#062c3d; --teal:#0b7590; --lagoon:#4fd0e2;
  --sun:#f5a524; --sun-2:#ffcf6e; --coral:#e5622b; --warn:#b2481b; --ok:#1f8a4c;
  --paper:#f5f3ee; --paper-2:#ece8df; --card:#fffdf9;
  --line:rgba(4,33,46,.14); --line-2:rgba(4,33,46,.24); --line-d:rgba(255,255,255,.16);
  --muted:#52646b; --muted-d:rgba(255,255,255,.72);
  --ease:cubic-bezier(.22,1,.36,1);
  --display:"Bricolage Grotesque",system-ui,sans-serif;
  --serif:"Instrument Serif",Georgia,serif;
  --body:"Manrope",system-ui,sans-serif;
  --gutter:16px; --r:22px;
}
@media(min-width:700px){:root{--gutter:32px}}
@media(min-width:1100px){:root{--gutter:56px}}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:clip}
img{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--sun);color:var(--ink)}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px;border-radius:8px}
.skip{position:fixed;left:16px;top:-80px;z-index:200;background:var(--sun);color:var(--ink);padding:12px 18px;border-radius:12px;font-weight:700;transition:top .3s;text-decoration:none}
.skip:focus{top:16px}
.wrap{width:100%;max-width:1320px;margin-inline:auto;padding-inline:var(--gutter)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* type */
.serif{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.01em}
.display{font-family:var(--display);font-weight:400;letter-spacing:-.04em;line-height:1}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--teal)}
.muted{color:var(--muted)}
.tnum{font-variant-numeric:tabular-nums}

/* buttons */
.btn{--bg:var(--ink);--fg:#fff;position:relative;display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:52px;padding:8px 8px 8px 24px;border-radius:99px;background:var(--bg);color:var(--fg);font-weight:700;font-size:16px;overflow:hidden;isolation:isolate;text-decoration:none;transition:color .45s var(--ease),opacity .3s}
.btn::before{content:"";position:absolute;left:50%;top:100%;width:140%;aspect-ratio:1;border-radius:50%;background:var(--sun);transform:translate(-50%,0);transition:transform .7s var(--ease);z-index:-1}
.btn:hover::before,.btn:focus-visible::before{transform:translate(-50%,-62%)}
.btn:hover,.btn:focus-visible{color:var(--ink)}
.btn__ico{flex:none;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.14);display:grid;place-items:center;transition:transform .6s var(--ease)}
.btn:hover .btn__ico{transform:rotate(-45deg)}
.btn--sun{--bg:var(--sun);--fg:var(--ink);box-shadow:0 18px 40px -18px rgba(229,98,43,.75)}
.btn--sun::before{background:var(--ink)}
.btn--sun:hover,.btn--sun:focus-visible{color:#fff}
.btn--sun .btn__ico{background:rgba(4,33,46,.12)}
.btn--ghost{--bg:transparent;--fg:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line-2);padding-right:24px}
.btn--block{width:100%;justify-content:space-between}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;pointer-events:none}
.link{font-weight:700;text-decoration:underline;text-underline-offset:4px;min-height:44px;display:inline-flex;align-items:center}

/* fields */
.field{display:grid;gap:7px;align-content:start}
.field > span{font-size:14px;font-weight:700}
.field input,.field select{width:100%;min-height:54px;padding:13px 16px;border-radius:14px;border:1.5px solid var(--line-2);background:#fff;font:inherit;color:var(--ink);transition:border-color .3s,box-shadow .3s}
.field input::placeholder{color:rgba(4,33,46,.45)}
.field input:focus,.field select:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 4px rgba(4,33,46,.14)}
.field input[aria-invalid="true"]{border-color:var(--warn);box-shadow:0 0 0 4px rgba(178,72,27,.14)}
.field small{color:var(--muted);font-size:13px}
.err{color:var(--warn);font-size:14px;font-weight:600;min-height:1.2em}
.check{display:flex;gap:12px;align-items:flex-start;font-size:15px;cursor:pointer}
.check input{flex:none;width:22px;height:22px;margin-top:2px;accent-color:var(--ink);cursor:pointer}

/* surfaces */
.panel-card{background:var(--card);border:1px solid var(--line);border-radius:26px;padding:clamp(20px,2.8vw,34px);box-shadow:0 40px 90px -60px rgba(4,33,46,.55)}
.panel-card--dark{background:var(--ink);color:#fff;border-color:transparent}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:5px 10px;border-radius:99px;background:rgba(11,117,144,.1);color:var(--teal)}
.tag--ok{background:rgba(31,138,76,.12);color:var(--ok)}
.tag--warn{background:rgba(178,72,27,.12);color:var(--warn)}
.tag--demo{background:transparent;border:1.5px dashed var(--warn);color:var(--warn)}
.note{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:16px;background:rgba(11,117,144,.08);font-size:14px;line-height:1.5}
.note--warn{background:rgba(245,165,36,.16)}
.note svg{flex:none;margin-top:2px}

/* ===== Composant 1 : simulateur d'échéances ===== */
.csi-sim{display:grid;gap:18px}
.csi-sim__counts{display:grid;grid-template-columns:repeat(var(--n,4),minmax(0,1fr));gap:8px}
.csi-sim__counts button{min-height:54px;border-radius:14px;border:1.5px solid var(--line-2);font-family:var(--display);font-size:20px;font-weight:500;transition:all .3s var(--ease)}
.csi-sim__counts button:hover:not(:disabled){border-color:var(--ink)}
.csi-sim__counts button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.csi-sim__counts button:disabled{opacity:.35;cursor:not-allowed;text-decoration:line-through}
.csi-sim__amount{display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.csi-sim__amount output{font-family:var(--display);font-size:20px;letter-spacing:-.01em;text-transform:none;color:var(--ink);font-weight:500}
.csi-sim input[type=range]{width:100%;height:28px;accent-color:var(--sun);cursor:pointer}
.csi-sim__out{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;border-top:1px solid var(--line);padding-top:16px}
.csi-sim__out b{font-family:var(--display);font-weight:300;font-size:clamp(44px,5vw,64px);letter-spacing:-.045em;line-height:.9}
.csi-sim__out small{display:block;font-size:13px;color:var(--muted);margin-top:6px}
.csi-sched{display:grid;grid-template-columns:repeat(auto-fit,minmax(70px,1fr));gap:6px;list-style:none}
.csi-sched li{padding:10px 6px 8px;border-radius:12px;background:var(--paper);border:1px solid var(--line);text-align:center;font-size:12px;color:var(--muted)}
.csi-sched li b{display:block;color:var(--ink);font-size:15px;font-variant-numeric:tabular-nums}
.csi-sched li:first-child{background:var(--ink);border-color:var(--ink);color:var(--muted-d)}
.csi-sched li:first-child b{color:var(--sun)}
.csi-sim__msg{font-size:13px;color:var(--muted)}
.csi-sim__msg.is-warn{color:var(--warn);font-weight:600}
/* dark variant */
.panel-card--dark .csi-sim__counts button{border-color:rgba(255,255,255,.3);color:#fff}
.panel-card--dark .csi-sim__counts button[aria-pressed="true"]{background:var(--sun);border-color:var(--sun);color:var(--ink)}
.panel-card--dark .csi-sim__amount{color:var(--muted-d)}
.panel-card--dark .csi-sim__amount output{color:#fff}
.panel-card--dark .csi-sim__out{border-color:var(--line-d)}
.panel-card--dark .csi-sim__out small,.panel-card--dark .csi-sim__msg{color:var(--muted-d)}
.panel-card--dark .csi-sched li{background:rgba(255,255,255,.07);border-color:var(--line-d);color:var(--muted-d)}
.panel-card--dark .csi-sched li b{color:#fff}
.panel-card--dark .csi-sched li:first-child{background:var(--sun);border-color:var(--sun);color:rgba(4,33,46,.7)}
.panel-card--dark .csi-sched li:first-child b{color:var(--ink)}

/* ===== Composant 2 : récapitulatif de devis ===== */
.csi-quote{display:grid;gap:18px}
.csi-quote__head{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:flex-start}
.csi-quote__ref{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--muted)}
.csi-quote__title{font-family:var(--display);font-weight:500;font-size:clamp(20px,2vw,26px);letter-spacing:-.02em;line-height:1.15;margin-top:4px}
.csi-quote__meta{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:14px;color:var(--muted)}
.csi-quote__meta b{color:var(--ink);font-weight:600}
.csi-quote table{width:100%;border-collapse:collapse;font-size:15px}
.csi-quote th{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700;text-align:left;padding:0 0 10px;border-bottom:1px solid var(--line)}
.csi-quote th:last-child,.csi-quote td:last-child{text-align:right;white-space:nowrap}
.csi-quote td{padding:12px 0;border-bottom:1px solid var(--line);vertical-align:top}
.csi-quote td:first-child{padding-right:12px}
.csi-quote td small{display:block;color:var(--muted);font-size:13px}
.csi-quote td.qty{color:var(--muted);text-align:center;width:48px}
.csi-quote__tot{display:grid;gap:6px;margin-left:auto;width:min(100%,320px);font-size:15px}
.csi-quote__tot div{display:flex;justify-content:space-between;gap:12px}
.csi-quote__tot div:last-child{border-top:1.5px solid var(--ink);padding-top:10px;margin-top:4px;font-family:var(--display);font-size:24px;font-weight:500;letter-spacing:-.02em}
.csi-quote__tot span:last-child{font-variant-numeric:tabular-nums}

/* ===== Composant 3 : sélecteur d'échéancier ===== */
.csi-plans{border:0;display:grid;gap:16px}
.csi-plans legend{font-family:var(--display);font-weight:500;font-size:20px;letter-spacing:-.02em;margin-bottom:12px}
.csi-plan{position:relative;display:grid;grid-template-columns:auto 1fr auto;gap:4px 14px;align-items:center;padding:16px 18px;border-radius:18px;border:1.5px solid var(--line-2);background:#fff;cursor:pointer;transition:border-color .3s,box-shadow .3s,background .3s}
.csi-plan:hover{border-color:var(--ink)}
.csi-plan input{position:absolute;opacity:0;pointer-events:none}
.csi-plan__radio{grid-row:span 2;width:22px;height:22px;border-radius:50%;border:2px solid var(--line-2);display:grid;place-items:center;transition:all .3s}
.csi-plan__radio::after{content:"";width:10px;height:10px;border-radius:50%;background:var(--ink);transform:scale(0);transition:transform .3s var(--ease)}
.csi-plan b{font-family:var(--display);font-weight:500;font-size:19px;letter-spacing:-.01em}
.csi-plan__price{grid-row:span 2;text-align:right;font-family:var(--display);font-size:22px;font-weight:500;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.csi-plan__price small{display:block;font-family:var(--body);font-size:12px;color:var(--muted);font-weight:600;letter-spacing:0}
.csi-plan__sub{font-size:13px;color:var(--muted)}
.csi-plan__badge{position:absolute;top:-10px;right:16px;background:var(--sun);color:var(--ink);font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:99px}
.csi-plan:has(input:checked){border-color:var(--ink);box-shadow:0 0 0 1.5px var(--ink),0 14px 30px -18px rgba(4,33,46,.6);background:var(--card)}
.csi-plan:has(input:checked) .csi-plan__radio{border-color:var(--ink)}
.csi-plan:has(input:checked) .csi-plan__radio::after{transform:scale(1)}
.csi-plan:has(input:focus-visible){outline:3px solid var(--sun);outline-offset:3px}
.csi-plan.is-off{opacity:.55;cursor:not-allowed;background:var(--paper);border-style:dashed}
.csi-plan.is-off:hover{border-color:var(--line-2)}
.csi-plan__why{grid-column:2 / -1;font-size:12.5px;color:var(--warn);font-weight:600}
.csi-plan__sched{grid-column:1 / -1;list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;padding-top:12px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--muted)}
.csi-plan__sched li{padding:4px 9px;border-radius:99px;background:var(--paper)}
.csi-plan__sched b{font-family:var(--body);font-size:12.5px;color:var(--ink);font-weight:700}
.csi-plan:not(:has(input:checked)) .csi-plan__sched{display:none}

/* stepper */
.stepper{display:flex;gap:6px;list-style:none;counter-reset:s}
.stepper li{flex:1;display:grid;gap:8px;font-size:12.5px;font-weight:700;color:var(--muted);counter-increment:s}
.stepper li::before{content:"";height:4px;border-radius:4px;background:var(--line)}
.stepper li.is-done::before,.stepper li.is-current::before{background:var(--sun)}
.stepper li.is-current{color:var(--ink)}
@media(max-width:600px){.stepper li span{display:none}.stepper li.is-current span{display:inline}}

/* code block */
.code{position:relative;background:var(--ink);color:#d9eef2;border-radius:16px;padding:18px 20px;font:13px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;overflow-x:auto;white-space:pre}
.code .c{color:#7fa3ad}.code .k{color:var(--sun)}.code .s{color:var(--lagoon)}
.copy{position:absolute;top:10px;right:10px;font:600 12px var(--body);color:#fff;background:rgba(255,255,255,.12);border-radius:99px;padding:6px 12px;min-height:32px}
.copy:hover{background:rgba(255,255,255,.22)}

/* topbar (pages annexes) */
.topbar{position:sticky;top:0;z-index:50;background:rgba(245,243,238,.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.topbar__in{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:68px}
.topbar img{height:30px;width:auto}
.topbar nav{display:flex;gap:4px;flex-wrap:wrap}
.topbar nav a{font-size:14px;font-weight:600;text-decoration:none;padding:10px 12px;border-radius:99px;min-height:44px;display:inline-flex;align-items:center}
.topbar nav a:hover{background:rgba(4,33,46,.06)}
.topbar nav a[aria-current="page"]{background:var(--ink);color:#fff}
@media(max-width:760px){.topbar nav a.opt{display:none}}