/* ============================================================
   PARTAGO — Feuille de styles principale v1.0
   Thème OLED dark #0A0A0A + accent bleu #4A9EFF
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;700&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:           #0A0A0A;
  --bg2:          #0f0f0f;
  --surface:      #141414;
  --surface2:     #1a1a1a;
  --border:       #222222;
  --border2:      #2a2a2a;

  --accent:       #4A9EFF;
  --accent-dim:   rgba(74,158,255,.15);
  --accent-hover: #2979d9;

  --positive:     #4CAF50;
  --positive-dim: rgba(76,175,80,.15);
  --negative:     #F44336;
  --negative-dim: rgba(244,67,54,.15);
  --neutral:      #9E9E9E;
  --warning:      #FFC107;
  --warning-dim:  rgba(255,193,7,.15);

  --text:         #E8E8E8;
  --text2:        #A0A0A0;
  --text3:        #666666;

  --font-main:    'Plus Jakarta Sans', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;

  --radius:       10px;
  --radius-sm:    6px;
  --radius-lg:    16px;

  --shadow:       0 4px 24px rgba(0,0,0,.5);
  --shadow-sm:    0 2px 8px rgba(0,0,0,.3);

  --sidebar-w:    240px;
  --topbar-h:     60px;
  --transition:   .2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; display: block; }

/* ── Layout principal ──────────────────────────────────────── */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-logo {
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo a {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -.5px;
}

.sidebar-logo .logo-icon {
  width: 32px; height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  color: #fff;
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
}

.nav-section-label {
  font-size: .7rem;
  font-weight: 600;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: .75rem 1.25rem .35rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .55rem 1.25rem;
  color: var(--text2);
  font-size: .9rem;
  font-weight: 500;
  border-radius: 0;
  transition: all var(--transition);
  position: relative;
}

.nav-item:hover {
  color: var(--text);
  background: var(--surface2);
}

.nav-item.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 3px;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

.nav-item i { font-size: 1rem; width: 18px; text-align: center; }

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
}

.user-card {
  display: flex;
  align-items: center;
  gap: .7rem;
}

.user-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 2px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  font-weight: 700;
  color: var(--accent);
  overflow: hidden;
  flex-shrink: 0;
}

.user-avatar img { width: 100%; height: 100%; object-fit: cover; }

.user-info { flex: 1; min-width: 0; }
.user-name  { font-size: .88rem; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role  { font-size: .75rem; color: var(--text3); }

.btn-logout {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text3);
  border-radius: 6px;
  transition: all var(--transition);
  flex-shrink: 0;
}
.btn-logout:hover { color: var(--negative); background: var(--negative-dim); }

/* ── Topbar mobile ─────────────────────────────────────────── */
.topbar {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  align-items: center;
  padding: 0 1rem;
  gap: 1rem;
  z-index: 110;
}

.topbar-logo {
  flex: 1;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.5px;
}

.btn-menu {
  background: none;
  border: none;
  color: var(--text2);
  font-size: 1.3rem;
  cursor: pointer;
  padding: .3rem;
}

/* ── Contenu principal ─────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-width: 0;
  padding: 2rem;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -.5px;
  color: var(--text);
}

.page-title span { color: var(--accent); }

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.card-sm { padding: 1rem; }

.card-title {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .8px;
  margin-bottom: 1rem;
}

/* ── Stats cards ───────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.stat-label { font-size: .78rem; color: var(--text3); font-weight: 500; }
.stat-value { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; line-height: 1; }
.stat-value.positive { color: var(--positive); }
.stat-value.negative { color: var(--negative); }
.stat-value.neutral  { color: var(--text); }
.stat-sub   { font-size: .78rem; color: var(--text3); }

/* ── Boutons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .55rem 1.1rem;
  font-family: var(--font-main);
  font-size: .9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

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

.btn-danger    { background: var(--negative); color: #fff; border-color: var(--negative); }
.btn-danger:hover  { background: #d32f2f; border-color: #d32f2f; color: #fff; }

.btn-secondary { background: var(--surface2); color: var(--text2); border-color: var(--border2); }
.btn-secondary:hover { background: var(--border2); color: var(--text); }

.btn-danger    { background: var(--negative-dim); color: var(--negative); border-color: rgba(244,67,54,.3); }
.btn-danger:hover { background: var(--negative); color: #fff; }

.btn-ghost     { background: transparent; color: var(--text2); border-color: transparent; }
.btn-ghost:hover { background: var(--surface2); color: var(--text); }

.btn-sm { padding: .35rem .75rem; font-size: .82rem; }
.btn-lg { padding: .75rem 1.5rem; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

/* ── Formulaires ───────────────────────────────────────────── */
.form-group { margin-bottom: 1.1rem; }

label, .form-label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text2);
  margin-bottom: .4rem;
}

.form-control, .form-select {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: .6rem .9rem;
  font-size: .92rem;
  font-family: var(--font-main);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
}

.form-control:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-control::placeholder { color: var(--text3); }

textarea.form-control { resize: vertical; min-height: 80px; }

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .75rem center;
  padding-right: 2.25rem;
}

.form-hint  { font-size: .78rem; color: var(--text3); margin-top: .3rem; }
.form-error { font-size: .78rem; color: var(--negative); margin-top: .3rem; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* ── Alerts ────────────────────────────────────────────────── */
.alert {
  padding: .75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  margin-bottom: 1rem;
}

.alert-danger  { background: var(--negative-dim); border: 1px solid rgba(244,67,54,.3); color: #ff8a80; }
.alert-success { background: var(--positive-dim); border: 1px solid rgba(76,175,80,.3);  color: #a5d6a7; }
.alert-warning { background: var(--warning-dim);  border: 1px solid rgba(255,193,7,.3);  color: #ffe082; }
.alert-info    { background: var(--accent-dim);   border: 1px solid rgba(74,158,255,.3); color: #90caf9; }

/* ── Tableaux ──────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }

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

th {
  font-size: .75rem;
  font-weight: 700;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .7px;
  padding: .6rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: .9rem;
  vertical-align: middle;
}

tr:last-child td { border-bottom: none; }

tbody tr:hover { background: var(--surface2); }

/* ── Badges & pills ────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .2rem .6rem;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-blue     { background: var(--accent-dim);    color: var(--accent);   }
.badge-green    { background: var(--positive-dim);  color: var(--positive); }
.badge-red      { background: var(--negative-dim);  color: var(--negative); }
.badge-yellow   { background: var(--warning-dim);   color: var(--warning);  }
.badge-neutral  { background: rgba(158,158,158,.15); color: var(--neutral); }

/* ── Groupes cards ─────────────────────────────────────────── */
.groups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.group-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color var(--transition), transform var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.group-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.group-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .5rem;
}

.group-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent);
  flex-shrink: 0;
}

.group-name { font-weight: 700; font-size: 1rem; color: var(--text); }
.group-desc { font-size: .82rem; color: var(--text3); }

.group-members {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .82rem;
  color: var(--text3);
}

.member-avatars { display: flex; }
.member-avatar-sm {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--surface2);
  border: 2px solid var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .6rem;
  font-weight: 700;
  color: var(--accent);
  margin-left: -6px;
}
.member-avatar-sm:first-child { margin-left: 0; }

.group-balance {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}

/* ── Dépenses liste ────────────────────────────────────────── */
.expense-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .85rem 0;
  border-bottom: 1px solid var(--border);
}

.expense-row:last-child { border-bottom: none; }

.expense-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .95rem;
  flex-shrink: 0;
}

.expense-info { flex: 1; min-width: 0; }
.expense-label { font-weight: 600; font-size: .92rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.expense-meta  { font-size: .78rem; color: var(--text3); }

.expense-amount { font-family: var(--font-display); font-weight: 700; font-size: 1rem; text-align: right; white-space: nowrap; }
.expense-share  { font-size: .75rem; color: var(--text3); text-align: right; }

/* ── Soldes ────────────────────────────────────────────────── */
.balance-list { display: flex; flex-direction: column; gap: .75rem; }

.balance-row {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: .75rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--surface2);
}

.balance-user { flex: 1; font-weight: 600; font-size: .92rem; }

.balance-bar-wrap {
  flex: 2;
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .78rem;
  color: var(--text3);
}

.balance-bar-track {
  flex: 1;
  height: 4px;
  background: var(--border2);
  border-radius: 2px;
  overflow: hidden;
}

.balance-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width .4s ease;
}

.balance-amount {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .95rem;
  min-width: 80px;
  text-align: right;
  white-space: nowrap;
}

/* ── Transactions suggérées ────────────────────────────────── */
.transaction-list { display: flex; flex-direction: column; gap: .6rem; }

.transaction-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .75rem 1rem;
  background: var(--surface2);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
  font-size: .88rem;
}

.transaction-row .arrow { color: var(--accent); font-size: 1rem; }
.transaction-amount { font-family: var(--font-display); font-weight: 700; color: var(--accent); margin-left: auto; }

/* ── Suggestion de remboursement ───────────────────────────── */
.settlement-suggestion {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  padding: .7rem .9rem;
  background: var(--surface2);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}
.settlement-suggestion__who {
  display: flex;
  align-items: center;
  gap: .4rem;
  flex-wrap: wrap;
}
.settlement-suggestion__name {
  font-weight: 600;
  font-size: .88rem;
}
.settlement-suggestion__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
}
.settlement-suggestion__amount {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
  font-size: .95rem;
}
.settlement-suggestion__actions {
  display: flex;
  gap: .35rem;
  flex-shrink: 0;
}

/* ── Convertisseur ─────────────────────────────────────────── */
.converter-card {
  max-width: 520px;
  margin: 0 auto;
}

.converter-row {
  display: flex;
  gap: .75rem;
  align-items: flex-end;
}

.converter-arrow {
  padding-bottom: .6rem;
  color: var(--text3);
  font-size: 1.2rem;
}

.rate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: .75rem;
  margin-top: 1.5rem;
}

.rate-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .85rem 1rem;
  text-align: center;
}

.rate-pair   { font-size: .75rem; color: var(--text3); margin-bottom: .2rem; }
.rate-value  { font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; color: var(--text); }
.rate-update { font-size: .7rem; color: var(--text3); margin-top: .2rem; }

.rate-card { position: relative; }
.rate-fav-btn {
  position: absolute;
  top: .4rem;
  right: .4rem;
  background: none;
  border: none;
  padding: .1rem .2rem;
  cursor: pointer;
  color: var(--text3);
  font-size: .85rem;
  line-height: 1;
  border-radius: 4px;
  transition: color .15s, transform .15s;
}
.rate-fav-btn:hover { color: #f0c04a; transform: scale(1.2); }
.rate-card.is-fav .rate-fav-btn { color: #f0c04a; }
.rate-card.is-fav .rate-fav-btn .bi::before { content: "\f586"; } /* bi-star-fill */
.rate-card.is-fav {
  border-color: #4A9EFF55;
  background: linear-gradient(135deg, var(--surface2), #4A9EFF0D);
}

.rate-grid-section-label {
  grid-column: 1 / -1;
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text3);
  padding-bottom: .25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: .25rem;
}

/* ── Admin ─────────────────────────────────────────────────── */
.admin-badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  background: rgba(255,193,7,.1);
  color: var(--warning);
  border: 1px solid rgba(255,193,7,.25);
  padding: .15rem .6rem;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 700;
}

/* ── Modal ─────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.75);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.75rem;
  transform: translateY(16px);
  transition: transform var(--transition);
}

.modal-overlay.open .modal { transform: translateY(0); }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}

.btn-close {
  width: 28px; height: 28px;
  background: var(--surface2);
  border: none;
  border-radius: 6px;
  color: var(--text2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.btn-close:hover { background: var(--negative-dim); color: var(--negative); }

/* ── Toast ─────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.toast {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
  font-size: .88rem;
  display: flex;
  align-items: center;
  gap: .6rem;
  min-width: 240px;
  box-shadow: var(--shadow);
  animation: toastIn .25s ease forwards;
}

.toast.success { border-left: 3px solid var(--positive); }
.toast.error   { border-left: 3px solid var(--negative); }
.toast.info    { border-left: 3px solid var(--accent);   }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── Empty state ───────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text3);
}

.empty-state i { font-size: 2.5rem; margin-bottom: 1rem; color: var(--border2); }
.empty-state p { font-size: .9rem; margin-top: .5rem; }

/* ── Pagination ────────────────────────────────────────────── */
.pagination {
  display: flex;
  gap: .35rem;
  align-items: center;
  justify-content: center;
  margin-top: 1.5rem;
}

.page-btn {
  width: 34px; height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 600;
  color: var(--text2);
  background: var(--surface2);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.page-btn:hover, .page-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ── Login page ────────────────────────────────────────────── */
.login-bg {
  min-height: 100vh;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  position: relative;
  overflow: hidden;
}

.login-bg::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(74,158,255,.08) 0%, transparent 70%);
  pointer-events: none;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 400px;
  position: relative;
}

.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo-icon {
  width: 56px; height: 56px;
  background: var(--accent);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  margin: 0 auto .75rem;
}

.login-logo h1 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -1px;
}

.login-logo p { font-size: .85rem; color: var(--text3); margin-top: .25rem; }

/* ── Overlay sidebar mobile ────────────────────────────────── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 99;
}

/* ── Responsive 768px ───────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow);
  }
  .sidebar-overlay.open { display: block; }
  .topbar { display: flex; }

  .main-content {
    margin-left: 0;
    padding: .75rem;
    padding-top: calc(var(--topbar-h) + .75rem);
  }

  /* Grilles → colonne unique */
  .form-row            { grid-template-columns: 1fr; }
  .stats-grid          { grid-template-columns: 1fr 1fr; }
  .groups-grid         { grid-template-columns: 1fr; }
  .rate-grid           { grid-template-columns: 1fr 1fr; }

  /* Page header */
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: .6rem;
  }
  .page-header .btn { width: 100%; justify-content: center; }

  /* Dashboard grid → colonne unique */
  div[style*="grid-template-columns:1fr 1fr"],
  div[style*="grid-template-columns: 1fr 1fr"] {
    display: flex !important;
    flex-direction: column !important;
  }

  /* Vue groupe : colonne droite sous la colonne gauche */
  div[style*="grid-template-columns:1fr 340px"],
  div[style*="grid-template-columns: 1fr 340px"] {
    display: flex !important;
    flex-direction: column !important;
  }

  /* Profil */
  div[style*="grid-template-columns:280px 1fr"],
  div[style*="grid-template-columns: 280px 1fr"] {
    display: flex !important;
    flex-direction: column !important;
  }

  /* Cards padding réduit */
  .card { padding: 1rem; }
  .card-sm { padding: .75rem; }

  /* Dépenses : boutons plus accessibles */
  .expense-row { flex-wrap: wrap; gap: .5rem; }
  .expense-amount { font-size: .9rem; }

  /* Tableaux scrollables */
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table { min-width: 500px; }

  /* Convertisseur */
  .converter-row { flex-direction: column; }
  .converter-arrow { transform: rotate(90deg); padding: 0; text-align: center; }
  .converter-card { max-width: 100%; }

  /* Boutons dans les transactions */
  .transaction-row { flex-wrap: wrap; gap: .4rem; }

  /* Balance rows */
  .balance-row { flex-wrap: wrap; }

  /* Modal plein écran sur mobile */
  .modal { max-width: 100%; margin: 0; border-radius: var(--radius) var(--radius) 0 0; }
  .modal-overlay { align-items: flex-end; padding: 0; }

  /* Toast */
  #toast-container { left: .75rem; right: .75rem; bottom: .75rem; }
  .toast { min-width: unset; width: 100%; }

  /* Login */
  .login-card { padding: 1.5rem 1rem; margin: 1rem; }
  .login-bg { padding: 0; align-items: flex-end; }
  .login-card { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
}

/* ── Responsive 480px ───────────────────────────────────────── */
@media (max-width: 480px) {
  .stats-grid          { grid-template-columns: 1fr 1fr; }
  .groups-grid         { grid-template-columns: 1fr; }
  .rate-grid           { grid-template-columns: 1fr 1fr; }

  .page-title          { font-size: 1.2rem; }

  /* Dépenses : layout simplifié */
  .expense-row         { gap: .4rem; }
  .expense-icon        { width: 32px; height: 32px; font-size: .8rem; }

  /* Répartition dépense */
  .split-row           { padding: .5rem .6rem; }

  /* Formulaires */
  .form-control,
  .form-select         { font-size: .88rem; padding: .55rem .8rem; }

  /* Boutons */
  .btn                 { font-size: .85rem; padding: .5rem .9rem; }
  .btn-lg              { font-size: .95rem; padding: .65rem 1.2rem; }

  /* Membres dans vue groupe */
  .member-avatar-sm    { width: 20px; height: 20px; }

  /* Sidebar footer */
  .user-name           { font-size: .82rem; }
  .user-role           { font-size: .7rem; }
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* ── Utilitaires ───────────────────────────────────────────── */
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.text-muted   { color: var(--text3); }
.text-accent  { color: var(--accent); }
.text-success { color: var(--positive); }
.text-danger  { color: var(--negative); }
.text-right   { text-align: right; }
.text-center  { text-align: center; }
.fw-bold      { font-weight: 700; }
.d-flex       { display: flex; }
.align-center { align-items: center; }
.gap-1        { gap: .5rem; }
.gap-2        { gap: 1rem; }
.flex-1       { flex: 1; }
.truncate     { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }