:root {
  --paper: #F6F4EF;
  --surface: #FFFFFF;
  --ink: #2A2E32;
  --ink-muted: #6B6F76;
  --border: #E2DFD7;
  --accent: #1F6F6B;
  --accent-ink: #FFFFFF;
  --accent-soft: #E6F0EF;
  --danger: #B3452F;
  --danger-soft: #FBEAE5;
  --warn: #C98A1E;
  --warn-soft: #FBF0DA;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(30, 30, 20, 0.06), 0 1px 12px rgba(30, 30, 20, 0.04);
  font-size: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.45;
}

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em 0;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 18px 28px;
  display: flex;
  align-items: baseline;
  gap: 18px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar .brand {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.topbar .brand span { color: var(--accent); }

.topbar nav { display: flex; gap: 4px; margin-left: auto; }

.topbar nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--ink-muted);
  font-weight: 600;
  font-size: 0.92rem;
}

.topbar nav a:hover { background: var(--accent-soft); color: var(--accent); text-decoration: none; }
.topbar nav a.active { background: var(--accent); color: var(--accent-ink); }

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.toolbar .search-box { flex: 1; min-width: 220px; }

input[type="text"], input[type="search"], input[type="date"], input[type="tel"],
input[type="email"], select, textarea {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  width: 100%;
}

textarea { resize: vertical; min-height: 60px; }

input:focus, select:focus, textarea:focus, button:focus, a:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-muted);
  margin-bottom: 4px;
}

.field { margin-bottom: 14px; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

button, .btn {
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  white-space: nowrap;
}

button:hover, .btn:hover { border-color: var(--accent); color: var(--accent); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover { background: #185957; color: var(--accent-ink); }

.btn-danger { color: var(--danger); }
.btn-danger:hover { border-color: var(--danger); color: var(--danger); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 18px;
}

table { width: 100%; border-collapse: collapse; }

.opp-table th {
  text-align: left;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.opp-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.opp-table tbody tr { cursor: pointer; transition: background 0.1s ease; }
.opp-table tbody tr:hover { background: var(--accent-soft); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #2A2E32;
  white-space: nowrap;
}

.pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-tag {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  display: inline-block;
}
.status-a_contacter { background: #EDEBE4; color: #5A5D52; }
.status-en_cours { background: var(--accent-soft); color: var(--accent); }
.status-termine_gagne { background: #E4F2E7; color: #2C7A43; }
.status-termine_perdu { background: var(--danger-soft); color: var(--danger); }

.relance-ok { color: var(--ink-muted); }
.relance-soon {
  color: var(--warn);
  font-weight: 700;
  background: var(--warn-soft);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}
.relance-late {
  color: var(--danger);
  font-weight: 700;
  background: var(--danger-soft);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.kanban-board {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  overflow-x: auto;
  padding-bottom: 8px;
}

.kanban-column {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 260px;
  max-width: 260px;
  flex: 0 0 260px;
  box-shadow: var(--shadow);
}

.kanban-column-head {
  padding: 14px 14px 10px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: var(--radius) var(--radius) 0 0;
  color: #FFFFFF;
}

.kanban-column-head h4 { color: #FFFFFF; }

.kanban-column-head.head-a_contacter { background: #8A8D93; }
.kanban-column-head.head-en_cours { background: var(--accent); }
.kanban-column-head.head-termine_gagne { background: #2C7A43; }
.kanban-column-head.head-termine_perdu { background: var(--danger); }

.kanban-column-head h4 {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 700;
}

.kanban-count {
  background: rgba(255,255,255,0.22);
  border: 1px solid rgba(255,255,255,0.35);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 1px 8px;
  border-radius: 999px;
}

.kanban-cards {
  padding: 10px;
  min-height: 60px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.kanban-cards.drag-over { background: var(--accent-soft); }

.kanban-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  cursor: grab;
  background: var(--surface);
  transition: box-shadow 0.1s ease, border-color 0.1s ease;
}

.kanban-card:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.kanban-card:active { cursor: grabbing; }
.kanban-card.dragging { opacity: 0.4; }

.kanban-card .client-name {
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 6px;
  display: block;
}

.kanban-card .card-meta {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-top: 6px;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-muted);
}
.empty-state h3 { color: var(--ink); }

.echange-item, .opp-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-bottom: 10px;
  background: var(--surface);
}

.echange-item .meta { font-size: 0.8rem; color: var(--ink-muted); margin-bottom: 4px; }

.opp-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.row { display: flex; align-items: center; gap: 10px; }
.row.between { justify-content: space-between; }
.muted { color: var(--ink-muted); }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(30, 30, 25, 0.35);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 16px;
  overflow-y: auto;
  z-index: 100;
}

.modal {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow);
}

.modal h3 { margin-bottom: 16px; }

.back-link { display: inline-block; margin-bottom: 16px; font-weight: 600; }

@media (max-width: 640px) {
  main { padding: 16px; }
  .grid-2 { grid-template-columns: 1fr; }
  .opp-table thead { display: none; }
  .opp-table, .opp-table tbody, .opp-table tr, .opp-table td { display: block; width: 100%; }
  .opp-table tr { border-bottom: 2px solid var(--border); padding: 10px 0; }
  .opp-table td { border: none; padding: 4px 0; }
}