:root{
  --bg:#f6f8fb;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --surface-3:#eef3f8;
  --text:#0f172a;
  --muted:#64748b;
  --muted-2:#94a3b8;
  --accent:#2563eb;
  --accent-hover:#1d4ed8;
  --border:#dbe3ee;
  --border-soft:#e8eef5;
  --success:#16a34a;
  --danger:#dc2626;
  --warning:#d97706;
  --shadow:0 12px 30px rgba(15,23,42,.06);
}
:root[data-theme="dark"]{
  --bg:#0b1120;
  --surface:#111827;
  --surface-2:#0f1726;
  --surface-3:#172033;
  --text:#f8fafc;
  --muted:#9aa9bd;
  --muted-2:#728197;
  --accent:#60a5fa;
  --accent-hover:#7cb6ff;
  --border:#263449;
  --border-soft:#1e2a3c;
  --success:#5bd39d;
  --danger:#f08a8a;
  --warning:#f6b35f;
  --shadow:0 16px 38px rgba(0,0,0,.22);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}
button,input,select{font:inherit}
.topbar,.hero,.tool-section,.simple-section,.faq,footer{width:min(1160px,calc(100% - 32px));margin:0 auto}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 0;border-bottom:1px solid var(--border-soft)}
.brand{text-decoration:none;color:var(--text);font-size:1.45rem;font-weight:900;letter-spacing:-.035em}.brand span{color:var(--accent)}
nav{display:flex;align-items:center;gap:22px;margin-left:auto}nav a,.footer-links a{color:var(--muted);text-decoration:none;font-size:.93rem;font-weight:550}nav a:hover,.footer-links a:hover{color:var(--text)}
.header-actions{display:flex;align-items:center;gap:6px}
.icon-button{width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--muted);cursor:pointer;transition:.18s}
.icon-button:hover{color:var(--text);border-color:color-mix(in srgb,var(--accent) 45%,var(--border))}.icon-button svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.icon-button[data-share="facebook"] svg path{fill:currentColor;stroke:none}
.sun-icon,.moon-icon{display:none}:root:not([data-theme="dark"]) .moon-icon{display:block}:root[data-theme="dark"] .sun-icon{display:block}
.hero{padding:42px 0 18px}.hero-copy{max-width:760px}.badge{display:inline-flex;padding:7px 10px;border:1px solid var(--border);border-radius:999px;background:var(--surface);color:var(--muted);font-size:.8rem;font-weight:700}
.hero h1{margin:16px 0 12px;font-size:clamp(2.1rem,5vw,3.7rem);line-height:1.01;letter-spacing:-.05em}.hero p{margin:0;max-width:700px;color:var(--muted);font-size:1.03rem;line-height:1.7}
.tool-section{padding:10px 0 24px}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:20px;box-shadow:var(--shadow)}
.dropzone{border:1.5px dashed color-mix(in srgb,var(--muted) 36%,transparent);border-radius:16px;padding:58px 20px;text-align:center;display:flex;flex-direction:column;gap:9px;cursor:pointer;background:var(--surface-2);transition:.18s}
.dropzone:hover,.dropzone.drag{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 4%,var(--surface-2))}.drop-icon{width:50px;height:50px;margin:0 auto 5px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:var(--accent);font-size:1.4rem;font-weight:800}
.dropzone strong{font-size:1.06rem}.dropzone span,.dropzone small{color:var(--muted)}
.start-actions{display:flex;justify-content:center;margin-top:14px}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;border-radius:10px;padding:11px 14px;font-weight:750;cursor:pointer;text-decoration:none}.primary{border:1px solid transparent;background:var(--accent);color:#fff}.primary:hover{background:var(--accent-hover)}.secondary{border:1px solid var(--border);background:var(--surface);color:var(--text)}.secondary:hover{background:var(--surface-2)}.compact-button{padding:9px 11px}.wide{width:100%}
.workspace{display:flex;flex-direction:column;gap:16px}.file-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;border:1px solid var(--border-soft);border-radius:14px;background:var(--surface-2)}.file-bar>div:first-child{display:flex;flex-direction:column;gap:4px;min-width:0}.file-bar strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-bar span{color:var(--muted);font-size:.88rem}.file-actions{display:flex;gap:8px;flex-wrap:wrap}
.workspace-grid{display:grid;grid-template-columns:170px minmax(0,1fr);gap:16px}.sidebar{display:flex;flex-direction:column;gap:7px}.panel-tab{width:100%;text-align:left;border:1px solid transparent;background:transparent;color:var(--muted);padding:11px 12px;border-radius:10px;cursor:pointer;font-weight:700}.panel-tab:hover{background:var(--surface-2);color:var(--text)}.panel-tab.active{background:color-mix(in srgb,var(--accent) 10%,var(--surface));border-color:color-mix(in srgb,var(--accent) 26%,var(--border));color:var(--accent)}
.workspace-main{min-width:0}.action-panel{display:flex;flex-direction:column;gap:14px}.panel-head h2,.preview-head h2{margin:0 0 4px;font-size:1.15rem;letter-spacing:-.02em}.panel-head p,.preview-head span{margin:0;color:var(--muted);font-size:.9rem}
.action-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.action-card{min-height:108px;text-align:left;padding:14px;border:1px solid var(--border);border-radius:12px;background:var(--surface-2);color:var(--text);cursor:pointer}.action-card:hover{border-color:color-mix(in srgb,var(--accent) 35%,var(--border));background:color-mix(in srgb,var(--accent) 4%,var(--surface-2))}.action-card strong{display:block;margin-bottom:6px}.action-card span{color:var(--muted);font-size:.84rem;line-height:1.5}
.form-card{display:flex;flex-direction:column;gap:13px;padding:15px;border:1px solid var(--border-soft);border-radius:13px;background:var(--surface-2)}.form-row{display:grid;gap:12px}.two-cols{grid-template-columns:1fr 1fr}.three-cols{grid-template-columns:1fr 1fr auto}.form-card label{display:flex;flex-direction:column;gap:7px;color:var(--text);font-size:.9rem}.form-card input,.form-card select,.preview-controls select{width:100%;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:9px;padding:10px 11px;outline:none}.form-card input:focus,.form-card select:focus,.preview-controls select:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 10%,transparent)}.checkbox-row{flex-direction:row!important;align-items:center;gap:8px;padding:10px 11px;border:1px solid var(--border);border-radius:9px;background:var(--surface)}.checkbox-row input{width:auto;margin:0}.align-end{align-self:end;height:41px}.merge-card{flex-direction:row;align-items:center;justify-content:space-between}.merge-card>div{display:flex;flex-direction:column;gap:4px}.merge-card span{color:var(--muted);font-size:.84rem}.export-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.export-summary div{padding:11px;border:1px solid var(--border);border-radius:10px;background:var(--surface)}.export-summary span{display:block;color:var(--muted);font-size:.77rem;margin-bottom:4px}.export-summary strong{font-size:.96rem}.split-summary{color:var(--muted);font-size:.88rem}
.column-list{display:flex;flex-direction:column;gap:8px}.column-row{display:grid;grid-template-columns:36px minmax(0,1fr) auto auto auto;gap:8px;align-items:center;padding:10px;border:1px solid var(--border);border-radius:11px;background:var(--surface-2)}.column-index{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--surface-3);color:var(--muted);font-size:.78rem;font-weight:700}.column-row input{width:100%;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:9px 10px}.mini-btn{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--muted);cursor:pointer}.mini-btn:hover{color:var(--text);border-color:var(--accent)}.mini-btn.danger:hover{color:var(--danger);border-color:color-mix(in srgb,var(--danger) 45%,var(--border))}
.preview-section{margin-top:18px;border-top:1px solid var(--border-soft);padding-top:16px}.preview-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}.preview-head>div:first-child{display:flex;align-items:baseline;gap:10px}.preview-controls label{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:.82rem}.preview-controls select{width:auto;padding:7px 9px}.table-wrap{overflow:auto;max-height:520px;border:1px solid var(--border);border-radius:12px;background:var(--surface)}table{border-collapse:separate;border-spacing:0;width:max-content;min-width:100%;font-size:.84rem}th,td{max-width:320px;padding:9px 11px;border-right:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft);text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}th{position:sticky;top:0;z-index:2;background:var(--surface-3);color:var(--text);font-weight:750}td{color:var(--muted);background:var(--surface)}tr:last-child td{border-bottom:0}th:last-child,td:last-child{border-right:0}.empty-table{padding:30px;text-align:center;color:var(--muted)}
.simple-section{padding:10px 0 28px}.simple-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.simple-grid article{padding:17px;border:1px solid var(--border);border-radius:13px;background:var(--surface)}.simple-grid h3{margin:0 0 7px;font-size:1rem}.simple-grid p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.55}.faq{max-width:880px;padding:16px 0 34px}.faq h2{margin:0 0 14px;font-size:1.55rem}.faq details{padding:15px 17px;margin-bottom:9px;border:1px solid var(--border);border-radius:12px;background:var(--surface)}.faq summary{cursor:pointer;font-weight:700;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq p{margin:10px 0 0;color:var(--muted);line-height:1.65}
.toast{position:fixed;right:20px;bottom:20px;z-index:50;max-width:min(420px,calc(100% - 40px));padding:12px 14px;border-radius:11px;background:var(--text);color:var(--bg);box-shadow:var(--shadow);font-size:.88rem}.toast.error{background:#991b1b;color:white}.toast.success{background:#166534;color:white}.hidden{display:none!important}
footer{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 0 34px;color:var(--muted);border-top:1px solid var(--border-soft)}footer strong{display:block;color:var(--text);margin-bottom:4px}.footer-links{display:flex;gap:16px;flex-wrap:wrap}
@media(max-width:980px){.workspace-grid{grid-template-columns:1fr}.sidebar{display:grid;grid-template-columns:repeat(4,1fr)}.panel-tab{text-align:center}.action-grid,.simple-grid{grid-template-columns:1fr 1fr}.three-cols{grid-template-columns:1fr 1fr}.three-cols .align-end{grid-column:1/-1;width:100%}}
@media(max-width:760px){nav{display:none}.desktop-share{display:none}.hero{padding-top:28px}.topbar{gap:10px}.workspace-grid{gap:12px}.sidebar{grid-template-columns:1fr 1fr}.action-grid,.simple-grid,.two-cols,.three-cols,.export-summary{grid-template-columns:1fr}.merge-card,.file-bar,.preview-head{flex-direction:column;align-items:stretch}.preview-head>div:first-child{display:block}.preview-controls label{justify-content:space-between}.file-actions{width:100%}.file-actions .secondary{flex:1}.column-row{grid-template-columns:32px minmax(0,1fr) 34px 34px 34px}footer{flex-direction:column;align-items:flex-start}}
@media(max-width:520px){.topbar,.hero,.tool-section,.simple-section,.faq,footer{width:min(1160px,calc(100% - 20px))}.tool-card{padding:13px}.dropzone{padding:42px 14px}.header-actions{gap:4px}.icon-button{width:34px;height:34px}.share-link:not([data-share="copy"]){display:none}.sidebar{grid-template-columns:1fr 1fr}.column-row{grid-template-columns:30px minmax(0,1fr);position:relative;padding-right:42px}.column-row .mini-btn{width:30px;height:30px}.column-row .move-up{grid-column:1}.column-row .move-down{grid-column:1}.column-row .delete-col{position:absolute;right:8px;top:9px}.table-wrap{max-height:430px}}

.source-notice{
  display:flex;
  align-items:flex-start;
  gap:11px;
  padding:12px 14px;
  border:1px solid color-mix(in srgb,var(--accent) 24%,var(--border));
  border-radius:12px;
  background:color-mix(in srgb,var(--accent) 5%,var(--surface));
}
.source-notice-icon{
  flex:0 0 auto;
  padding:5px 7px;
  border-radius:7px;
  background:color-mix(in srgb,var(--accent) 12%,var(--surface));
  color:var(--accent);
  font-size:.7rem;
  font-weight:850;
  letter-spacing:.04em;
}
.source-notice>div:last-child{display:flex;flex-direction:column;gap:3px;min-width:0}
.source-notice strong{font-size:.88rem}
.source-notice span{color:var(--muted);font-size:.8rem;line-height:1.5}


/* JSON multi-table chooser */
.source-notice-content{display:flex;flex-direction:column;gap:4px;min-width:0;flex:1}
.json-table-switcher{display:flex;align-items:center;gap:8px;margin-top:7px;color:var(--muted);font-size:.78rem}
.json-table-switcher select{min-width:190px;max-width:100%;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:7px 9px;outline:none}
.json-table-switcher select:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 10%,transparent)}
.json-chooser-modal{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;padding:20px}
.json-chooser-backdrop{position:absolute;inset:0;background:rgba(15,23,42,.48)}
.json-chooser-dialog{position:relative;width:min(560px,100%);max-height:calc(100vh - 40px);overflow:auto;padding:18px;border:1px solid var(--border);border-radius:16px;background:var(--surface);box-shadow:0 22px 60px rgba(15,23,42,.22)}
.json-chooser-head h2{margin:5px 0 7px;font-size:1.3rem;letter-spacing:-.025em}
.json-chooser-head p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.55}
.json-chooser-kicker{color:var(--accent);font-size:.72rem;font-weight:850;text-transform:uppercase;letter-spacing:.07em}
.json-chooser-list{display:flex;flex-direction:column;gap:9px;margin:16px 0}
.json-choice{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;padding:12px 13px;border:1px solid var(--border);border-radius:11px;background:var(--surface-2);color:var(--text);text-align:left;cursor:pointer}
.json-choice:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--border));background:color-mix(in srgb,var(--accent) 5%,var(--surface-2))}
.json-choice>span:first-child{display:flex;flex-direction:column;gap:3px;min-width:0}
.json-choice strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.92rem}
.json-choice small{color:var(--muted);font-size:.77rem}
.json-choice-count{flex:0 0 auto;padding:5px 8px;border-radius:999px;background:var(--surface);border:1px solid var(--border);color:var(--muted);font-size:.76rem;font-weight:700}
@media(max-width:520px){.json-table-switcher{align-items:stretch;flex-direction:column}.json-table-switcher select{width:100%}.json-chooser-modal{padding:10px}.json-chooser-dialog{max-height:calc(100vh - 20px)}}

/* Métadonnées d'import CSV */
.csv-import-meta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin:10px 0 14px;
}
.import-badge{
  display:inline-flex;
  align-items:center;
  min-height:34px;
  padding:7px 10px;
  border:1px solid var(--border);
  border-radius:9px;
  background:var(--surface-2);
  color:var(--muted);
  font-size:.8rem;
  font-weight:650;
}
.inline-check{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:34px;
  padding:7px 10px;
  border:1px solid var(--border);
  border-radius:9px;
  background:var(--surface-2);
  color:var(--text);
  font-size:.82rem;
  cursor:pointer;
}
.inline-check input{margin:0;accent-color:var(--accent)}

/* Language selector */
.language-select{
  height:36px;
  min-width:62px;
  padding:0 24px 0 10px;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--surface);
  color:var(--text);
  font:inherit;
  font-size:.78rem;
  font-weight:750;
  cursor:pointer;
  outline:none;
}
.language-select:focus{border-color:color-mix(in srgb,var(--accent) 55%,var(--border));box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 12%,transparent)}
@media(max-width:520px){.language-select{height:34px;min-width:56px;padding-left:8px;padding-right:20px}}