:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7280;
  --border: #e2e8f0;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --green: #059669;
  --green-bg: #d1fae5;
  --orange: #d97706;
  --orange-bg: #fef3c7;
  --red: #dc2626;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

header.app-header {
  background: var(--primary);
  color: #fff;
  padding: 20px 16px;
}

header.app-header .container {
  padding: 0;
}

header.app-header h1 {
  margin: 0;
  font-size: 1.25rem;
}

header.app-header p {
  margin: 4px 0 0;
  opacity: 0.9;
  font-size: 0.9rem;
}

header.app-header a {
  color: #fff;
  font-size: 0.85rem;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 16px;
}

/* --- Formulaire ------------------------------------------------------------ */

label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin: 14px 0 6px;
}

label .optional {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.8rem;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font-family: inherit;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
  border-color: var(--primary);
}

textarea {
  resize: vertical;
  min-height: 70px;
}

.hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 4px;
}

.btn {
  display: inline-block;
  border: none;
  border-radius: 8px;
  padding: 12px 18px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  font-family: inherit;
}

.btn:hover {
  background: var(--primary-dark);
}

.btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.btn-block {
  width: 100%;
  padding: 14px;
  font-size: 1.05rem;
  margin-top: 20px;
}

.btn-secondary {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-secondary:hover {
  background: #eff6ff;
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: #f8fafc;
}

.btn-sm {
  padding: 8px 12px;
  font-size: 0.85rem;
}

/* Bloc preuve : deux boutons photo / import */
.proof-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.proof-buttons .btn {
  flex: 1;
  min-width: 140px;
}

.proof-status {
  margin-top: 10px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.proof-preview {
  max-width: 120px;
  max-height: 120px;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-top: 8px;
  display: block;
}

/* --- Messages -------------------------------------------------------------- */

.msg {
  padding: 12px 14px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 0.92rem;
}

.msg-success {
  background: var(--green-bg);
  color: #065f46;
}

.msg-error {
  background: #fee2e2;
  color: #991b1b;
}

.hidden {
  display: none !important;
}

/* --- Dashboard totaux ------------------------------------------------------ */

.totals {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.total-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
  text-align: center;
}

.total-card .label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.total-card .value {
  font-size: 1.4rem;
  font-weight: 700;
  margin-top: 6px;
}

.total-card.reste {
  background: var(--orange-bg);
}

.total-card.reste .value {
  color: var(--orange);
}

.total-card.rembourse .value {
  color: var(--green);
}

/* --- Filtres --------------------------------------------------------------- */

.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.filters > div {
  flex: 1;
  min-width: 150px;
}

.filters label {
  margin: 0 0 4px;
}

/* --- Liste des dépenses ---------------------------------------------------- */

.expense {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
  margin-bottom: 12px;
  border-left: 4px solid var(--orange);
}

.expense.rembourse {
  border-left-color: var(--green);
}

.expense-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.expense-top .name {
  font-weight: 700;
}

.expense-top .amount {
  font-weight: 700;
  font-size: 1.1rem;
  white-space: nowrap;
}

.expense-meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 4px;
}

.expense-desc {
  margin-top: 8px;
}

.expense-line {
  font-size: 0.85rem;
  margin-top: 6px;
  word-break: break-word;
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.badge-pending {
  background: var(--orange-bg);
  color: var(--orange);
}

.badge-done {
  background: var(--green-bg);
  color: var(--green);
}

.iban {
  font-family: ui-monospace, monospace;
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  cursor: pointer;
}

.expense-actions {
  margin-top: 12px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.reimburse-form {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}

.reimburse-form .row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.reimburse-form .row > div {
  flex: 1;
  min-width: 130px;
}

.reimburse-form label {
  margin: 8px 0 4px;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 30px 10px;
}

.nav-link {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.85rem;
}

@media (max-width: 480px) {
  .totals {
    grid-template-columns: 1fr;
  }
}