:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary: #64748b;
  --danger: #dc2626;
  --success: #16a34a;
  --bg: #f4f6f9;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --muted: #64748b;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.topbar {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.9rem;
}

.nav a { color: var(--primary); text-decoration: none; }
.nav-user { color: var(--muted); }

.badge {
  background: var(--primary);
  color: white;
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 999px;
  margin-left: 4px;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 16px 60px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.card-narrow { max-width: 480px; }

.card h2 {
  margin-top: 0;
  font-size: 1.05rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 720px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.balance {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 4px 0;
}

.balance.positive, .positive { color: var(--success); }
.balance.negative, .negative { color: var(--danger); }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.required-mark { color: var(--danger); font-weight: 600; font-size: 0.8rem; }

.card-danger {
  border-color: #fecaca;
  background: #fff5f5;
}

.card-danger h2 { color: var(--danger); }

form label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 12px;
}

form input, form select {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  color: var(--text);
  background: #fff;
}

form input:focus { outline: 2px solid var(--primary); outline-offset: 1px; }

.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #b91c1c; }
.btn-secondary { background: var(--secondary); color: white; }
.btn-outline { background: white; border-color: var(--border); color: var(--text); }
.btn-danger-outline { background: white; border-color: var(--danger); color: var(--danger); }
.btn-block { width: 100%; }

.link-button {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0;
  text-decoration: underline;
}

.link-button.danger { color: var(--danger); }

.inline-form { display: inline; }
.inline-label { display: inline-block; margin-right: 8px; }

.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.actions-col { flex-direction: column; align-items: flex-start; gap: 14px; }

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.table th, .table td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.table th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; }

.num { text-align: right; font-variant-numeric: tabular-nums; }

.row-inactive { opacity: 0.55; }

/* Sur petit écran, les tableaux se transforment en cartes empilées
   plutôt que de comprimer des colonnes illisibles. */
@media (max-width: 640px) {
  .table thead { display: none; }

  .table, .table tbody, .table tr, .table td {
    display: block;
    width: 100%;
  }

  .table {
    border: none;
  }

  .table tr {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 4px 12px;
    margin-bottom: 10px;
    background: var(--card-bg);
  }

  .table td {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid #f1f5f9;
    text-align: right;
  }

  .table td:last-child { border-bottom: none; }

  .table td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    text-align: left;
    margin-right: auto;
  }

  .table td:empty::before { content: none; }
  .table td[data-label=""]::before { content: none; }
  .table td[data-label=""] { justify-content: flex-end; }
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.tag-add { background: #dcfce7; color: #166534; }
.tag-sub { background: #fee2e2; color: #991b1b; }

details {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 10px;
}

details summary {
  cursor: pointer;
  font-weight: 600;
}

details form { margin-top: 14px; }

.banner {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.banner-success { background: #dcfce7; color: #166534; }
.banner-error { background: #fee2e2; color: #991b1b; }
.banner-info { background: #dbeafe; color: #1e40af; }

.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.login-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  width: 100%;
  max-width: 380px;
}

.login-card h1 { font-size: 1.3rem; margin-bottom: 4px; }