:root{
  --accent:#2563eb;
  --accent-light:#eff6ff;
  --bg:#f5f6f8;
  --surface:#ffffff;
  --border:#e5e7eb;
  --text:#111827;
  --text-muted:#6b7280;
  --text-faint:#9ca3af;
  --danger:#dc2626;
  --danger-light:#fef2f2;
  --success:#059669;
  --success-light:#ecfdf5;
  --warning:#d97706;
  --warning-light:#fffbeb;
  --radius:10px;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 1px 3px rgba(16,24,40,.06);
  --sidebar-w:220px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:14px;
  line-height:1.5;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0 0 .5em 0;font-weight:600}
h1{font-size:20px}
h2{font-size:15px;color:var(--text)}
p{margin:.4em 0}

/* ---- Layout ---- */
#side{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--surface);border-right:1px solid var(--border);
  display:flex;flex-direction:column;padding:18px 0;z-index:20;
}
#side .brand{font-weight:700;font-size:16px;padding:0 20px 18px 20px;color:var(--text);display:flex;align-items:center;gap:8px}
#side .brand .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);display:inline-block;flex-shrink:0}
#side .brand .brand-logo{max-height:28px;max-width:168px;object-fit:contain}
#side nav{display:flex;flex-direction:column;gap:1px;flex:1;overflow-y:auto}
#side nav a{
  color:var(--text-muted);padding:9px 20px;font-size:13.5px;font-weight:500;
  border-left:3px solid transparent;
}
#side nav a:hover{background:var(--bg);text-decoration:none;color:var(--text)}
#side nav a.on{color:var(--accent);background:var(--accent-light);border-left-color:var(--accent)}
#side nav .sep{padding:14px 20px 4px 20px;font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-faint);font-weight:600}
#side .logout{margin:10px 20px 0 20px;color:var(--text-muted);font-size:13px}
main{margin-left:var(--sidebar-w);padding:24px 28px 60px 28px;max-width:1280px}
header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:12px;flex-wrap:wrap}
header h1{margin:0}
.burger{display:none;background:none;border:0;font-size:20px;cursor:pointer}

@media (max-width:900px){
  #side{transform:translateX(-100%);transition:transform .2s;box-shadow:var(--shadow)}
  body.open #side{transform:translateX(0)}
  main{margin-left:0;padding:16px}
  .burger{display:block}
}

/* ---- Cards / forms ---- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:18px}
.card.wide{grid-column:1/-1}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.cols.cols-3{grid-template-columns:1fr 1fr 1fr}
@media (max-width:1150px){.cols.cols-3{grid-template-columns:1fr 1fr}}
@media (max-width:900px){.cols.cols-3{grid-template-columns:1fr}}
@media (max-width:900px){.cols{grid-template-columns:1fr}}
.settings{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:900px){.settings{grid-template-columns:1fr}}

/* ---- Sub-navigation (e.g. Paramètres sections) ---- */
.subnav{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:20px;border-bottom:1px solid var(--border);padding-bottom:0}
.subnav a{
  padding:9px 14px;font-size:13.5px;font-weight:500;color:var(--text-muted);border-radius:7px 7px 0 0;
  border-bottom:2px solid transparent;margin-bottom:-1px;
}
.subnav a:hover{background:var(--bg);text-decoration:none;color:var(--text)}
.subnav a.on{color:var(--accent);border-bottom-color:var(--accent)}

.form label{display:block;font-size:12.5px;font-weight:600;color:var(--text-muted);margin:12px 0 4px 0}
.form label:first-child{margin-top:0}
input,select,textarea{
  width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:7px;
  font-size:13.5px;font-family:inherit;background:var(--surface);color:var(--text);
}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent-light);border-color:var(--accent)}
textarea{min-height:70px;resize:vertical}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.grid .wide{grid-column:1/-1}
label.inline{display:flex;align-items:center;gap:8px;font-weight:500;color:var(--text);margin-top:10px}
label.inline input{width:auto}

button,.btn{
  display:inline-flex;align-items:center;gap:6px;background:var(--surface);color:var(--text);
  border:1px solid var(--border);padding:8px 14px;border-radius:7px;font-size:13.5px;font-weight:500;
  cursor:pointer;
}
button:hover,.btn:hover{background:var(--bg);text-decoration:none}
button.primary,.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
button.primary:hover,.btn.primary:hover{filter:brightness(.92)}
button.danger,.btn.danger{color:var(--danger);border-color:#fecaca}
.actions{margin-bottom:14px;display:flex;gap:10px;flex-wrap:wrap}

/* ---- Tables ---- */
.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;font-size:13.5px}
table th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--text-faint);padding:10px 14px;border-bottom:1px solid var(--border);white-space:nowrap}
table td{padding:11px 14px;border-bottom:1px solid var(--border);vertical-align:middle}
table tr:last-child td{border-bottom:none}
table tr:hover td{background:#fafafa}
.row-actions{white-space:nowrap;display:flex;gap:10px}
.row-actions a,.row-actions button{font-size:12.5px;border:none;background:none;padding:0;color:var(--accent);cursor:pointer}
.row-actions button{color:var(--text-muted)}

/* ---- Dropdown action menus ---- */
.menu{position:relative;display:inline-block}
.menu-btn{
  border:1px solid var(--border);background:var(--surface);color:var(--text-muted);
  width:30px;height:30px;padding:0;border-radius:7px;font-size:16px;line-height:1;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.menu-btn:hover{background:var(--bg);color:var(--text)}
.menu-btn.wide{width:auto;height:auto;padding:8px 14px;gap:6px;font-size:13.5px;border-radius:7px}
.menu-list{
  display:none;position:fixed;min-width:190px;z-index:100;
  background:var(--surface);border:1px solid var(--border);border-radius:9px;box-shadow:0 8px 24px rgba(16,24,40,.12);
  padding:6px;flex-direction:column;gap:1px;max-height:70vh;overflow-y:auto;
}
.menu.open .menu-list{display:flex}
.menu-list a,.menu-list button{
  display:block;width:100%;text-align:left;padding:8px 10px;border-radius:6px;font-size:13px;
  color:var(--text);background:none;border:none;cursor:pointer;white-space:nowrap;
}
.menu-list a:hover,.menu-list button:hover{background:var(--bg);text-decoration:none}
.menu-list button.danger,.menu-list a.danger{color:var(--danger)}
.menu-list hr{border:none;border-top:1px solid var(--border);margin:5px 2px}
table td.menu-cell{overflow:visible}
.detail-header{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.detail-header .meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}

/* ---- Badges ---- */
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:11.5px;font-weight:600;background:#f3f4f6;color:var(--text-muted)}
.badge.draft{background:#f3f4f6;color:#4b5563}
.badge.sent{background:#eff6ff;color:#2563eb}
.badge.signed{background:#eef2ff;color:#4f46e5}
.badge.paid{background:var(--success-light);color:var(--success)}
.badge.partial{background:var(--warning-light);color:var(--warning)}
.badge.late{background:var(--danger-light);color:var(--danger)}
.badge.cancelled{background:#f3f4f6;color:#9ca3af}

/* ---- Filters / pagination ---- */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;align-items:center}
.filters input,.filters select{width:auto;min-width:130px}
.pager{display:flex;align-items:center;gap:8px;padding:12px 14px;font-size:12.5px;color:var(--text-muted)}
.pager select{width:auto;padding:4px 6px}
.pager a{color:var(--text-muted);padding:3px 8px;border-radius:5px}
.pager a.active{background:var(--accent);color:#fff}

/* ---- Dashboard ---- */
.period{margin-bottom:16px}
.period select{width:auto}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:18px}
.kpis .kpi{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px}
.kpis .kpi b{display:block;font-size:21px;font-weight:700;margin-bottom:2px}
.kpis .kpi span{font-size:12px;color:var(--text-muted)}
.kpis .kpi.accent b{color:var(--accent)}
.kpis .kpi.good b{color:var(--success)}
.kpis .kpi.warn b{color:var(--warning)}
.kpis .kpi.bad b{color:var(--danger)}
.bars p{display:flex;align-items:center;gap:10px;margin:8px 0;font-size:12.5px;color:var(--text-muted)}
.bars p span{height:8px;background:var(--accent);border-radius:6px;display:inline-block;max-width:220px}

/* ---- Line items editor ---- */
.line-row{display:grid;grid-template-columns:2fr .9fr .7fr .7fr .9fr .8fr .8fr .8fr auto;gap:6px;align-items:center;margin-bottom:8px;padding:8px;background:var(--bg);border-radius:8px}
.line-row textarea{min-height:38px;font-size:12.5px}
.line-row label{font-size:10px;color:var(--text-muted);display:block;margin:0 0 2px 0}
.line-row input,.line-row select{font-size:12.5px;padding:6px 7px}
.line-row button{padding:6px 9px;color:var(--danger);border-color:#fecaca;align-self:end}
.line-head{display:grid;grid-template-columns:2fr .9fr .7fr .7fr .9fr .8fr .8fr .8fr auto;gap:6px;font-size:10.5px;color:var(--text-faint);text-transform:uppercase;letter-spacing:.03em;padding:0 8px;margin-bottom:4px}
@media (max-width:1100px){.line-row,.line-head{grid-template-columns:1fr 1fr}}

/* ---- Misc ---- */
.muted{color:var(--text-muted);font-size:12.5px}
.varbox{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.varbox span{background:var(--bg);border:1px solid var(--border);padding:3px 8px;border-radius:6px;font-size:11.5px;color:var(--text-muted);font-family:monospace}
.alert{background:var(--danger-light);color:var(--danger);padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:12px}
.notice{background:var(--success-light);color:var(--success);padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:12px}
.overview .bars{margin-top:10px}
.logo-preview{max-height:48px;margin-bottom:8px;display:block}

/* ---- Login / public pages ---- */
body.login,body.public{background:var(--bg)}
.login-card{
  max-width:360px;margin:10vh auto;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:30px;display:flex;flex-direction:column;gap:4px;
}
.login-card h1{text-align:center;margin-bottom:16px}
.login-card .login-logo{max-height:56px;max-width:100%;object-fit:contain;margin:0 auto 20px auto;display:block}
.login-card button{margin-top:14px}
.public-doc{max-width:760px;margin:40px auto;padding:0 16px}
.public-doc .card{margin-top:20px}
.public-doc h1{font-size:22px}
.public-doc table{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
#pad{border:1px solid var(--border);border-radius:8px;background:#fff;touch-action:none;max-width:100%}
.success{background:var(--success-light);color:var(--success);padding:12px 16px;border-radius:8px;margin-bottom:14px}