:root{--p-bg: #f6f7f9;--p-card: #ffffff;--p-border: #e2e5eb;--p-text: #1a1d24;--p-muted: #6b7280;--p-accent: #d05826;--p-accent-hover: #b64a1e;--p-danger: #b91c1c;--p-success: #15803d;--p-warn: #b45309;--p-shadow: 0 1px 2px rgba(16,24,40,.05), 0 1px 3px rgba(16,24,40,.06)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--p-bg);color:var(--p-text);line-height:1.5;min-height:100vh}a{color:var(--p-accent)}.portail-shell{max-width:1120px;margin:0 auto;padding:0 24px}.portail-shell.wide{max-width:1440px}.portail-header{background:var(--p-card);border-bottom:1px solid var(--p-border);padding:14px 0;margin-bottom:32px}.portail-header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.portail-brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1rem;color:var(--p-text);text-decoration:none}.portail-brand img{height:32px;width:auto}.portail-brand small{color:var(--p-muted);font-weight:500;font-size:.82rem}.portail-nav{display:flex;gap:20px;align-items:center;font-size:.92rem}.portail-nav a{color:var(--p-muted);text-decoration:none;font-weight:500}.portail-nav a:hover,.portail-nav a.active{color:var(--p-text)}.portail-user{color:var(--p-muted);font-size:.88rem}.portail-logout{background:none;border:1px solid var(--p-border);color:var(--p-text);padding:6px 12px;border-radius:6px;font-size:.85rem;cursor:pointer;font-family:inherit}.portail-logout:hover{background:var(--p-bg)}.portail-lang-switch{display:flex;gap:2px;font-size:.8rem;font-weight:600}.portail-lang-switch a{color:var(--p-muted);text-decoration:none;padding:4px 8px;border-radius:5px}.portail-lang-switch a:hover{background:var(--p-bg);color:var(--p-text)}.portail-lang-switch a.active{color:var(--p-accent);background:#d0582614}h1{font-size:1.6rem;font-weight:700;margin-bottom:8px}h2{font-size:1.15rem;font-weight:600;margin-bottom:12px}.card{background:var(--p-card);border:1px solid var(--p-border);border-radius:10px;padding:24px;box-shadow:var(--p-shadow)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 18px;border-radius:8px;font-weight:600;font-size:.95rem;border:1px solid transparent;cursor:pointer;text-decoration:none;font-family:inherit;transition:background .15s ease,border-color .15s 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#d0582626}.form-row{margin-bottom:18px}.hint{font-size:.82rem;color:var(--p-muted);margin-top:4px}.warn-banner{background:#fef3c7;border:1px solid #fde68a;color:#92400e;padding:10px 14px;border-radius:8px;font-size:.85rem;margin-bottom:16px}.calc-wizard{max-width:760px;margin:0 auto}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}.four-col{display:grid;grid-template-columns:repeat(4,1fr);gap:0 12px}@media(max-width:520px){.two-col,.four-col{grid-template-columns:1fr 1fr}}label.sublabel{font-weight:400;color:var(--p-muted);font-size:.8rem}details summary{cursor:pointer;font-weight:600;font-size:.85rem;color:var(--p-muted);list-style:none;display:flex;align-items:center;gap:8px;margin-top:4px}details summary:before{content:"▸";transition:transform .15s ease}details[open] summary:before{transform:rotate(90deg)}details summary::-webkit-details-marker{display:none}.details-body{margin-top:14px}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.75rem;font-weight:600;letter-spacing:.3px}.badge-draft{background:#f3f4f6;color:#374151}.badge-sent{background:#dbeafe;color:#1e40af}.badge-signing{background:#fef3c7;color:#92400e}.badge-complete{background:#dcfce7;color:#166534}.badge-finalized{background:#ede9fe;color:#5b21b6}.badge-cancelled{background:#fee2e2;color:#991b1b}.flash{padding:12px 16px;border-radius:8px;font-size:.9rem;margin-bottom:20px}.flash-error{background:#fef2f2;border:1px solid #fecaca;color:var(--p-danger)}.flash-success{background:#f0fdf4;border:1px solid #bbf7d0;color:var(--p-success)}.flash-info{background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af}table.data{width:100%;border-collapse:collapse}table.data th,table.data td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--p-border);font-size:.92rem}table.data th{font-weight:600;color:var(--p-muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.4px}table.data tr:last-child td{border-bottom:none}table.data a{color:var(--p-text);text-decoration:none;font-weight:500}table.data a:hover{color:var(--p-accent)}.empty-state{text-align:center;padding:48px 24px;color:var(--p-muted)}.participants-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px 16px;border:1px solid var(--p-border);border-radius:6px;padding:14px;max-height:260px;overflow-y:auto}.participants-grid label{display:flex;align-items:center;gap:8px;font-weight:400;font-size:.92rem;margin-bottom:0;cursor:pointer}.participants-grid input[type=checkbox]{margin:0}