*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:#f1f5f9;
  color:#1e293b;
  min-height:100vh;
}

.app-header{
  background:#0f172a;
  color:#f8fafc;
  padding:1.25rem 2rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:.75rem;
}
.app-header h1{font-size:1.15rem;font-weight:700;letter-spacing:-0.02em}
.app-header .subtitle{font-size:0.75rem;color:#64748b;margin-top:0.15rem}

.header-actions{display:flex;gap:0.5rem;flex-wrap:wrap}
.btn{
  padding:0.45rem 1rem;
  border-radius:6px;
  border:none;
  font-size:0.8rem;
  font-weight:600;
  cursor:pointer;
  transition:opacity .15s;
}
.btn:hover{opacity:.85}
.btn-primary{background:#3b82f6;color:#fff}
.btn-secondary{background:#334155;color:#e2e8f0}
.btn-danger{background:#ef4444;color:#fff}
.btn-ghost{background:transparent;color:#3b82f6;border:1px solid #cbd5e1}
.btn-sm{padding:0.3rem 0.7rem;font-size:0.72rem}

.main-layout{
  display:grid;
  grid-template-columns:1fr 2fr;
  gap:1.5rem;
  padding:1.5rem 2rem;
  max-width:1400px;
  margin:0 auto;
}

@media(max-width:900px){.main-layout{grid-template-columns:1fr}}

.panel{
  background:#fff;
  border-radius:10px;
  padding:1.5rem;
  box-shadow:0 1px 3px rgba(0,0,0,.06);
}

.panel-title{
  font-size:0.75rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.07em;
  color:#64748b;
  margin-bottom:1rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.5rem;
}

/* Matrice */
.matrix-container{overflow-x:auto}
.matrix-grid{
  display:grid;
  grid-template-columns:80px repeat(5,1fr);
  gap:3px;
  min-width:400px;
}
.matrix-label-y{
  writing-mode:vertical-lr;
  transform:rotate(180deg);
  text-align:center;
  font-size:0.65rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.07em;
  color:#64748b;
  grid-row:1/7;
  grid-column:1;
  padding-right:0.5rem;
}
.matrix-label-x{
  font-size:0.65rem;
  text-align:center;
  color:#64748b;
  padding:0.2rem;
}
.matrix-row-label{
  font-size:0.65rem;
  text-align:right;
  color:#64748b;
  padding-right:0.5rem;
  display:flex;
  align-items:center;
  justify-content:flex-end;
}
.matrix-cell{
  aspect-ratio:1;
  border-radius:4px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:transform .1s,box-shadow .1s,outline .1s;
  position:relative;
  min-height:50px;
}
.matrix-cell:hover{transform:scale(1.05);box-shadow:0 4px 12px rgba(0,0,0,.15);z-index:1}
.matrix-cell.active-filter{outline:3px solid #0f172a;outline-offset:1px}
.matrix-cell .score{font-size:1rem;font-weight:800;color:rgba(255,255,255,.9)}
.matrix-cell .dot-count{
  font-size:0.65rem;
  color:rgba(255,255,255,.7);
  margin-top:2px;
}

/* Formulaire */
.form-grid{display:grid;gap:1rem}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:0.75rem}
.form-group{display:flex;flex-direction:column;gap:0.3rem}
label{font-size:0.72rem;font-weight:600;color:#475569;text-transform:uppercase;letter-spacing:.05em}
input,select,textarea{
  border:1px solid #e2e8f0;
  border-radius:6px;
  padding:0.5rem 0.75rem;
  font-size:0.85rem;
  color:#1e293b;
  background:#f8fafc;
  transition:border-color .15s;
  font-family:inherit;
}
input:focus,select:focus,textarea:focus{
  outline:none;
  border-color:#3b82f6;
  background:#fff;
}
textarea{resize:vertical;min-height:70px}

.category-hint{font-size:.72rem;color:#94a3b8;margin-top:.15rem}

/* Registre des risques */
.risk-register{margin-top:1.5rem}

.search-box{
  border:1px solid #e2e8f0;
  border-radius:6px;
  padding:.4rem .7rem;
  font-size:.78rem;
  min-width:180px;
  background:#f8fafc;
}

.risk-table{width:100%;border-collapse:collapse;font-size:0.82rem}
.risk-table th{
  text-align:left;
  padding:0.5rem 0.75rem;
  font-size:0.68rem;
  text-transform:uppercase;
  letter-spacing:.06em;
  color:#64748b;
  background:#f8fafc;
  border-bottom:2px solid #e2e8f0;
  font-weight:600;
}
.risk-table td{
  padding:0.7rem 0.75rem;
  border-bottom:1px solid #f1f5f9;
  vertical-align:top;
}
.risk-table tr:hover td{background:#f8fafc}

.risk-badge{
  display:inline-block;
  padding:.2rem .6rem;
  border-radius:999px;
  font-size:.65rem;
  font-weight:700;
  color:#fff;
  white-space:nowrap;
}
.risk-score-cell{
  font-weight:800;
  font-size:1rem;
}

.status-badge{
  display:inline-block;
  font-size:.65rem;
  padding:.15rem .5rem;
  border-radius:4px;
  font-weight:600;
  text-transform:capitalize;
}
.status-ouvert{background:#fef2f2;color:#ef4444}
.status-en_cours{background:#fff7ed;color:#ea580c}
.status-clos{background:#f0fdf4;color:#16a34a}
.status-accepte{background:#f0f9ff;color:#0284c7}

.row-actions{display:flex;gap:.35rem;flex-wrap:wrap}

.empty-state{
  text-align:center;
  padding:3rem;
  color:#94a3b8;
  font-size:.9rem;
}

.tooltip{
  position:absolute;
  bottom:calc(100% + 6px);
  left:50%;
  transform:translateX(-50%);
  background:#1e293b;
  color:#f8fafc;
  font-size:.65rem;
  padding:.3rem .6rem;
  border-radius:4px;
  white-space:nowrap;
  pointer-events:none;
  opacity:0;
  transition:opacity .15s;
  z-index:10;
}
.matrix-cell:hover .tooltip{opacity:1}