:root {
  --color-primary: #8a4b08;
  --color-primary-dark: #6b3a06;
  --color-header: #a35c0c;
  --color-bg: #f7f5f2;
  --color-surface: #ffffff;
  --color-text: #222222;
  --color-muted: #666666;
  --color-border: #e0ddd8;
  --color-danger: #b3261e;
  --color-danger-bg: #fdecea;
  --color-success: #1e7a34;
  --color-success-bg: #e8f5e9;
  --color-warning-bg: #fff4e5;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

a { color: var(--color-primary); }

header.topbar {
  background: var(--color-header);
  color: #fff;
  padding: 0.6rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

header.topbar a { color: #fff; text-decoration: none; }

header.topbar .brand {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  width: 100%;
  min-height: 60px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  width: 100%;
}

.brand-logo { height: 60px; width: auto; display: block; flex: none; }

/* Centré sur toute la largeur du bandeau via position absolue — reste centré
   indépendamment de la position du logo (qui, lui, reste à gauche). */
.brand-text {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  line-height: 1.2;
}
.brand-text .brand-titre {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.3px;
}
.brand-text .brand-soustitre {
  font-size: 0.5rem;
  font-weight: 400;
  opacity: 0.88;
  margin-top: 0.15rem;
}

@media (max-width: 640px) {
  header.topbar .brand { min-height: 46px; }
  .brand-logo { height: 46px; }
  .brand-text .brand-titre { font-size: 1.1rem; }
  .brand-text .brand-soustitre { display: none; }
}

nav.mainnav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.95rem;
}

nav.mainnav a { opacity: 0.9; }
nav.mainnav a:hover { opacity: 1; text-decoration: underline; }

main {
  max-width: 960px;
  margin: 1.5rem auto;
  padding: 0 1rem 3rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

h1 { font-size: 1.5rem; margin-top: 0; }
h2 { font-size: 1.2rem; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

th, td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--color-border);
}

th { background: #f1ede7; font-weight: 600; }

.btn {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  text-decoration: none;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn:hover { background: var(--color-primary-dark); }
.btn.secondary { background: #efece7; color: var(--color-text); }
.btn.danger { background: var(--color-danger); }

.form-group { margin-bottom: 1rem; }
label { display: block; font-weight: 600; margin-bottom: 0.3rem; font-size: 0.9rem; }

input[type=text], input[type=email], input[type=password], input[type=date],
input[type=number], select, textarea {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
}

.checkbox-row { display: flex; align-items: center; gap: 0.5rem; }
.checkbox-row input { width: auto; }

.alert {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}
.alert.error { background: var(--color-danger-bg); color: var(--color-danger); }
.alert.success { background: var(--color-success-bg); color: var(--color-success); }

.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}
.badge.a_jour, .badge.payee { background: var(--color-success-bg); color: var(--color-success); }
.badge.en_retard, .badge.due { background: var(--color-warning-bg); color: #8a5a00; }

.muted { color: var(--color-muted); font-size: 0.9rem; }

form.inline { display: inline; }

.errors { color: var(--color-danger); font-size: 0.85rem; margin-top: 0.2rem; }

.avatar-placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  flex: none;
}

.file-list { list-style: none; margin: 0; padding: 0; }
.file-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}
.file-list li:last-child { border-bottom: none; }

.btn.link-like {
  background: none;
  color: var(--color-danger);
  padding: 0;
  font-size: 0.85rem;
  text-decoration: underline;
}
.btn.link-like:hover { background: none; color: var(--color-danger); }

@media (max-width: 600px) {
  table, thead, tbody, th, td, tr { display: block; }
  thead tr { position: absolute; top: -9999px; left: -9999px; }
  tr { margin-bottom: 0.75rem; border: 1px solid var(--color-border); border-radius: 6px; padding: 0.5rem; }
  td { border: none; padding: 0.2rem 0.3rem; }
  td::before { content: attr(data-label) ": "; font-weight: 600; }
}