/* Thème "verre dépoli" : fond en dégradé animé, panneaux translucides + flou,
   clair/sombre selon le système. */
:root {
  color-scheme: light dark;
  --bg: #eef2fb;
  --blob-1: #8fb5ff;
  --blob-2: #c6a8ff;
  --blob-3: #8fe3d4;
  --glass: rgba(255, 255, 255, 0.55);
  --glass-strong: rgba(255, 255, 255, 0.72);
  --glass-soft: rgba(255, 255, 255, 0.35);
  --glass-border: rgba(255, 255, 255, 0.75);
  --glass-shadow: 0 10px 40px rgba(31, 45, 90, 0.10), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  --border: rgba(31, 45, 90, 0.10);
  --text: #18213a;
  --text-muted: #5b6684;
  --primary: #3461e0;
  --primary-2: #6a4cf0;
  --primary-dark: #1d3a8a;
  --accent: #7c3aed;
  --positive: #128a57;
  --negative: #d0342c;
  --positive-bg: rgba(18, 138, 87, 0.12);
  --negative-bg: rgba(208, 52, 44, 0.10);
  --warn-bg: rgba(255, 196, 77, 0.18);
  --warn-border: rgba(224, 160, 40, 0.45);
  --info-bg: rgba(52, 97, 224, 0.10);
  --info-border: rgba(52, 97, 224, 0.28);
  --input-bg: rgba(255, 255, 255, 0.65);
  --tooltip-bg: rgba(20, 26, 46, 0.92);
  --radius: 18px;
  --radius-sm: 11px;
  --blur: blur(22px) saturate(160%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --blob-1: #2340a8;
    --blob-2: #5a2aa8;
    --blob-3: #0f6f68;
    --glass: rgba(22, 28, 50, 0.55);
    --glass-strong: rgba(28, 35, 62, 0.75);
    --glass-soft: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.10);
    --glass-shadow: 0 10px 40px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.09);
    --text: #e7ebf7;
    --text-muted: #9aa5c4;
    --primary: #7d9bff;
    --primary-2: #a98bff;
    --primary-dark: #b9c8ff;
    --accent: #a77bff;
    --positive: #4fd69a;
    --negative: #ff7a70;
    --positive-bg: rgba(79, 214, 154, 0.14);
    --negative-bg: rgba(255, 122, 112, 0.13);
    --warn-bg: rgba(255, 196, 77, 0.12);
    --warn-border: rgba(255, 196, 77, 0.35);
    --info-bg: rgba(125, 155, 255, 0.12);
    --info-border: rgba(125, 155, 255, 0.30);
    --input-bg: rgba(10, 14, 30, 0.45);
    --tooltip-bg: rgba(240, 243, 252, 0.95);
  }
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: transparent;
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Fond : taches de couleur floues derrière le verre */
body::before {
  content: '';
  position: fixed;
  inset: -20vmax;
  z-index: -1;
  background:
    radial-gradient(38vmax 38vmax at 12% 18%, var(--blob-1), transparent 70%),
    radial-gradient(34vmax 34vmax at 88% 12%, var(--blob-2), transparent 70%),
    radial-gradient(40vmax 40vmax at 70% 92%, var(--blob-3), transparent 70%);
  opacity: 0.75;
  filter: blur(30px);
  animation: derive 40s ease-in-out infinite alternate;
}
@keyframes derive {
  to { transform: translate3d(3vmax, -2vmax, 0) rotate(8deg) scale(1.05); }
}
@media (prefers-reduced-motion: reduce) { body::before { animation: none; } }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

::selection { background: color-mix(in srgb, var(--primary) 30%, transparent); }

.app-shell {
  display: flex;
  min-height: 100vh;
  gap: 24px;
  padding: 18px;
}

/* Barre latérale en verre, collée en haut */
.sidebar {
  width: 236px;
  flex-shrink: 0;
  position: sticky;
  top: 18px;
  align-self: flex-start;
  height: calc(100vh - 36px);
  background: var(--glass);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 24px;
  padding: 22px 14px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow-y: auto;
}

.sidebar .brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.02em;
  padding: 0 10px;
}
.sidebar .brand img { border-radius: 8px; box-shadow: 0 4px 12px color-mix(in srgb, var(--primary) 35%, transparent); }
.sidebar .brand span {
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sidebar .brand-sub { font-size: 12px; color: var(--text-muted); margin-bottom: 18px; padding: 0 10px; }

.sidebar a {
  color: var(--text);
  padding: 9px 12px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.sidebar a:hover { background: var(--glass-soft); border-color: var(--glass-border); text-decoration: none; }
.sidebar a.active {
  background: linear-gradient(120deg, color-mix(in srgb, var(--primary) 22%, transparent), color-mix(in srgb, var(--primary-2) 18%, transparent));
  border-color: color-mix(in srgb, var(--primary) 30%, transparent);
  color: var(--primary-dark);
  font-weight: 650;
}
.sidebar a.muted { margin-top: auto; color: var(--text-muted); font-size: 13px; }
.sidebar a.nav-tuto { background: var(--glass-soft); border-color: var(--glass-border); font-weight: 700; margin-bottom: 10px; }

.content { flex: 1; min-width: 0; padding: 18px 12px 40px; max-width: 1020px; }
.content-full { max-width: 680px; margin: 48px auto; padding: 0 20px; }

h1 { font-size: 28px; font-weight: 800; letter-spacing: -0.025em; margin: 0 0 4px; }
h2 { font-size: 17px; font-weight: 700; letter-spacing: -0.01em; margin: 0 0 14px; color: var(--primary-dark); }

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

/* Panneaux en verre */
.card, .stat-card {
  background: var(--glass);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius);
}
.card { padding: 24px 26px; margin-bottom: 22px; }
.card-narrow { max-width: 680px; }

.muted { color: var(--text-muted); font-size: 13.5px; }
.hint { display: block; color: var(--text-muted); font-size: 12px; margin-top: 3px; font-weight: 400; }

.grid-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 22px;
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.stat-card { padding: 18px 22px; position: relative; overflow: hidden; }
.stat-card::after {
  content: '';
  position: absolute;
  inset: auto -30% -60% auto;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 25%, transparent), transparent 70%);
  pointer-events: none;
}
.stat-positive::after { background: radial-gradient(circle, color-mix(in srgb, var(--positive) 28%, transparent), transparent 70%); }
.stat-negative::after { background: radial-gradient(circle, color-mix(in srgb, var(--negative) 28%, transparent), transparent 70%); }
.stat-label { font-size: 12.5px; color: var(--text-muted); margin-bottom: 6px; font-weight: 500; }
.stat-value { font-size: 27px; font-weight: 800; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.stat-positive .stat-value { color: var(--positive); }
.stat-negative .stat-value { color: var(--negative); }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}
.form-grid .span-2 { grid-column: span 2; }

input, select, textarea, button {
  font-family: inherit;
  font-size: 14px;
}
input, select, textarea {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--text);
  font-weight: 400;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 20%, transparent);
}
input[type="checkbox"], input[type="radio"] { accent-color: var(--primary); }
input[type="file"] { padding: 8px; }

.input-with-button { display: flex; gap: 8px; }
.input-with-button input { flex: 1; min-width: 0; }

button { cursor: pointer; border: none; border-radius: var(--radius-sm); }
button, .btn-primary, .btn-secondary, .btn-ia { transition: transform 0.12s ease, box-shadow 0.15s ease, filter 0.15s ease, background 0.15s ease; }
button:active, .btn-primary:active, .btn-secondary:active { transform: translateY(1px) scale(0.99); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.btn-primary {
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 650;
  display: inline-block;
  width: fit-content;
  grid-column: span 1;
  box-shadow: 0 6px 18px color-mix(in srgb, var(--primary) 35%, transparent), inset 0 1px 0 rgba(255,255,255,0.25);
}
.btn-primary:hover { filter: brightness(1.07); text-decoration: none; box-shadow: 0 8px 24px color-mix(in srgb, var(--primary) 45%, transparent); }

.btn-secondary {
  background: var(--glass-strong);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--primary-dark);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  font-weight: 600;
  display: inline-block;
  box-shadow: 0 2px 10px rgba(31, 45, 90, 0.06);
}
.btn-secondary:hover { text-decoration: none; border-color: var(--info-border); }
.btn-secondary-mini {
  background: var(--glass-soft);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 5px 11px;
  font-size: 12.5px;
  font-weight: 600;
}
.btn-secondary-mini:hover { background: var(--glass-strong); }

.btn-ia {
  background: linear-gradient(120deg, var(--accent), #c06bff 55%, #ff7ac6);
  color: white;
  padding: 9px 16px;
  font-weight: 650;
  white-space: nowrap;
  box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 35%, transparent);
}
.btn-ia:hover { filter: brightness(1.08); }
.btn-ia:disabled { opacity: 0.6; cursor: wait; }

.btn-danger-mini {
  background: transparent;
  color: var(--negative);
  font-size: 13px;
  padding: 4px 8px;
}
.btn-danger-mini:hover { background: var(--negative-bg); }

.actions-row { display: flex; gap: 12px; align-items: center; margin: 16px 0; flex-wrap: wrap; }

.form-recurrent-enregistrer { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.form-recurrent-enregistrer input[type="date"] { width: 140px; }
.form-recurrent-enregistrer input[type="number"] { width: 96px; }

.table-actions { display: flex; gap: 6px; align-items: center; }

.card:has(> .table) { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th, .table td { text-align: left; padding: 10px 10px; border-bottom: 1px solid var(--border); }
.table th { color: var(--text-muted); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.05em; }
.table tbody tr { transition: background 0.12s ease; }
.table tbody tr:hover { background: var(--glass-soft); }
.table .montant { text-align: right; font-variant-numeric: tabular-nums; }
.table-compact .ref-cerfa { color: var(--text-muted); font-size: 12px; }
.table-compact .section-row td { font-weight: 700; color: var(--primary-dark); border-bottom: none; padding-top: 18px; }
.table-compact .section-row:hover { background: transparent; }
.table-compact .total-row td { font-weight: 800; border-top: 2px solid var(--border); }
.table-compact .row-positive .montant { color: var(--positive); }
.table-compact .row-negative .montant { color: var(--negative); }

.badge { padding: 3px 9px; border-radius: 20px; font-size: 11.5px; font-weight: 650; }
.badge-produit { background: var(--positive-bg); color: var(--positive); }
.badge-charge { background: var(--negative-bg); color: var(--negative); }

.alert {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  margin: 14px 0;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.alert-warn { background: var(--warn-bg); border: 1px solid var(--warn-border); }
.alert-info { background: var(--info-bg); border: 1px solid var(--info-border); }

.ia-panel {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, transparent), color-mix(in srgb, #ff7ac6 8%, transparent));
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.6;
}
.ia-panel p { margin: 0 0 10px; }
.ia-panel ul, .ia-panel ol { margin: 0 0 10px; padding-left: 22px; }
.ia-panel li { margin-bottom: 4px; }
.ia-panel p:last-child, .ia-panel ul:last-child, .ia-panel ol:last-child { margin-bottom: 0; }
.ia-panel code {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  border-radius: 5px;
  padding: 1px 5px;
  font-size: 12.5px;
}

.echeance-list { list-style: none; padding: 0; margin: 0; }
.echeance-list li { display: flex; align-items: center; gap: 14px; padding: 9px 0; border-bottom: 1px solid var(--border); font-size: 14px; flex-wrap: wrap; }
.echeance-list li:last-child { border-bottom: none; }
.echeance-date { color: var(--text-muted); width: 90px; flex-shrink: 0; font-variant-numeric: tabular-nums; }
.echeance-date-retard { color: var(--negative); font-weight: 700; }
.echeance-list .echeance-titre { flex: 1; }
.link-more { display: inline-block; margin-top: 10px; font-size: 13px; font-weight: 600; }

.card-alert {
  background: linear-gradient(135deg, var(--negative-bg), var(--glass));
  border-color: color-mix(in srgb, var(--negative) 30%, transparent);
}
.h2-alert { color: var(--negative); }

.tag-retard {
  display: inline-block;
  background: var(--negative);
  color: white;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 20px;
  margin-left: 8px;
  vertical-align: middle;
}

.timeline { list-style: none; padding: 0; margin: 0; }
.timeline-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.timeline-item:last-child { border-bottom: none; }
.timeline-item.timeline-done { opacity: 0.55; }
.timeline-item.timeline-done .timeline-titre { text-decoration: line-through; }
.timeline-item.timeline-retard { background: var(--negative-bg); margin: 0 -26px; padding: 14px 26px; border-bottom-color: color-mix(in srgb, var(--negative) 25%, transparent); }
.timeline-date-form input { width: 150px; }
.timeline-body { flex: 1; min-width: 200px; }
.timeline-titre { font-weight: 650; }
.timeline-desc { color: var(--text-muted); font-size: 12.5px; margin-top: 2px; }

/* Tooltips "i" d'explication pour les termes techniques */
.info-tip {
  position: relative;
  display: inline-flex;
  vertical-align: middle;
  margin-left: 6px;
}
.info-tip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--info-bg);
  border: 1px solid var(--info-border);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  font-style: italic;
  font-family: Georgia, 'Times New Roman', serif;
  text-transform: none;
  letter-spacing: normal;
  cursor: help;
  user-select: none;
}
.info-tip-bubble { text-transform: none; letter-spacing: normal; }
.info-tip-bubble {
  position: absolute;
  bottom: 130%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--tooltip-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--bg);
  font-size: 12.5px;
  font-weight: 400;
  font-style: normal;
  padding: 9px 12px;
  border-radius: 10px;
  width: max-content;
  max-width: 260px;
  line-height: 1.45;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.12s ease;
  z-index: 30;
  text-align: left;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}
.info-tip-bubble::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--tooltip-bg);
}

/* Variante pour les tooltips proches du bord haut/droit de la page (ex: sélecteur
   d'exercice) : la bulle s'ouvre vers le bas et s'ancre à droite de l'icône, plutôt
   que vers le haut et centrée, où elle serait coupée par le bord de l'écran. */
.info-tip-below .info-tip-bubble {
  bottom: auto;
  top: 130%;
  left: auto;
  right: 0;
  transform: none;
}
.info-tip-below .info-tip-bubble::after {
  top: auto;
  bottom: 100%;
  left: auto;
  right: 8px;
  transform: none;
  border-top-color: transparent;
  border-bottom-color: var(--tooltip-bg);
}
.info-tip:hover .info-tip-bubble,
.info-tip:focus .info-tip-bubble,
.info-tip.open .info-tip-bubble {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Page tutoriel */
.tuto-steps { list-style: none; padding: 0; margin: 0; counter-reset: etape; }
.tuto-steps li {
  counter-increment: etape;
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.tuto-steps li:last-child { border-bottom: none; }
.tuto-steps li::before {
  content: counter(etape);
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 4px 12px color-mix(in srgb, var(--primary) 35%, transparent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}
.tuto-step-titre { font-weight: 700; margin-bottom: 3px; }
.tuto-step-desc { color: var(--text-muted); font-size: 13.5px; }

.glossaire { display: grid; grid-template-columns: 1fr; gap: 14px; }
.glossaire-item dt { font-weight: 700; color: var(--primary-dark); margin-bottom: 3px; }
.glossaire-item dd { margin: 0; color: var(--text); font-size: 13.5px; }

/* Navigateurs sans backdrop-filter : panneaux plus opaques pour rester lisibles */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .card, .stat-card, .sidebar { background: var(--glass-strong); }
}

@media (max-width: 860px) {
  .app-shell { flex-direction: column; padding: 10px; gap: 10px; }
  .sidebar {
    width: 100%;
    height: auto;
    top: 10px;
    z-index: 20;
    flex-direction: row;
    align-items: center;
    overflow-x: auto;
    border-radius: 18px;
    padding: 8px;
    scrollbar-width: none;
  }
  .sidebar::-webkit-scrollbar { display: none; }
  .sidebar .brand { flex-shrink: 0; font-size: 16px; }
  .sidebar .brand-sub { display: none; }
  .sidebar a { white-space: nowrap; flex-shrink: 0; }
  .sidebar a.nav-tuto { margin-bottom: 0; }
  .sidebar a.muted { margin-top: 0; }
  .grid-cards, .grid-2, .form-grid { grid-template-columns: 1fr; }
  .form-grid .span-2 { grid-column: auto; }
  .content { padding: 8px 4px 32px; }
  .card { padding: 18px; }
  .timeline-item.timeline-retard { margin: 0 -18px; padding: 14px 18px; }
  h1 { font-size: 24px; }
}

/* Comptes : connexion, inscription, "Mon compte" */
.auth-card { max-width: 440px; margin: 0 auto; padding: 32px; }
.auth-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; font-size: 20px; font-weight: 800; letter-spacing: -0.02em; }
.auth-logo img { border-radius: 12px; box-shadow: 0 6px 18px color-mix(in srgb, var(--primary) 35%, transparent); }
.auth-links { display: flex; flex-direction: column; gap: 6px; margin-top: 18px; font-size: 13.5px; color: var(--text-muted); }
.form-stack { grid-template-columns: 1fr; }
.btn-block { width: 100%; padding: 12px; }
.alert-error { background: var(--negative-bg); border: 1px solid color-mix(in srgb, var(--negative) 35%, transparent); }
.alert-ok { background: var(--positive-bg); border: 1px solid color-mix(in srgb, var(--positive) 35%, transparent); }
.inline-form { display: inline-block; margin-left: 8px; }

.sidebar a.nav-compte { margin-top: 2px; }
.nav-deconnexion button {
  width: 100%;
  text-align: left;
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  padding: 7px 12px;
  border-radius: 12px;
}
.nav-deconnexion button:hover { background: var(--glass-soft); color: var(--negative); }
.topbar-mini { display: flex; gap: 14px; justify-content: flex-end; align-items: center; padding: 14px 20px 0; font-size: 13.5px; }
.topbar-mini .nav-deconnexion button { width: auto; }

.notif-form fieldset { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; margin: 14px 0; }
.notif-form legend { font-weight: 650; font-size: 13.5px; padding: 0 6px; }
.switch-row { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; padding: 5px 0; cursor: pointer; }
.switch-row input { margin-top: 3px; }
.check-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-block;
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--glass-soft);
  font-size: 13px;
  font-weight: 550;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.chip input:checked + span {
  background: linear-gradient(120deg, color-mix(in srgb, var(--primary) 25%, transparent), color-mix(in srgb, var(--primary-2) 20%, transparent));
  border-color: color-mix(in srgb, var(--primary) 45%, transparent);
  color: var(--primary-dark);
}
.chip input:focus-visible + span { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-secondary:disabled { opacity: 0.5; cursor: not-allowed; }

.card-danger { border-color: color-mix(in srgb, var(--negative) 30%, transparent); }
.card-danger h2 { color: var(--negative); }
.btn-danger { background: var(--negative); color: white; padding: 9px 16px; font-weight: 650; white-space: nowrap; }
.btn-danger:hover { filter: brightness(1.08); }

@media (max-width: 860px) {
  .check-grid { grid-template-columns: 1fr; }
  .nav-deconnexion { flex-shrink: 0; }
  .nav-deconnexion button { white-space: nowrap; }
  .auth-card { padding: 22px; }
}