:root {
  --bg: #efe9dc;
  --paper: #fffdf8;
  --ink: #201d16;
  --ink-soft: #6b6252;
  --green: #1f6f43;
  --green-dark: #12452a;
  --green-tint: #e6f1ea;
  --amber: #c98a1f;
  --amber-tint: #fbf0dc;
  --red: #b3402b;
  --red-tint: #fbeae6;
  --line: #ddd4bd;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(32,29,22,0.06), 0 8px 24px -12px rgba(32,29,22,0.18);
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(32,29,22,0.05) 1px, transparent 0);
  background-size: 18px 18px;
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: 'JetBrains Mono', monospace; }

.app {
  max-width: 1040px;
  margin: 0 auto;
  padding: 28px 20px 80px;
}

/* ---------- Topbar ---------- */
.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-mark {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--green);
  color: var(--paper);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 20px;
  box-shadow: var(--shadow);
}

.brand-text h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}

.brand-text p {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.tabs {
  display: flex;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
  box-shadow: var(--shadow);
}

.tab {
  border: none;
  background: transparent;
  padding: 9px 18px;
  border-radius: 999px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 13.5px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}

.tab:hover { color: var(--ink); }

.tab.active {
  background: var(--green);
  color: var(--paper);
}

/* ---------- Panels ---------- */
.panel { display: none; }
.panel.active { display: block; animation: fadein .18s ease; }

@keyframes fadein {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--green-dark);
  margin: 0 0 14px;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 22px;
}

@media (max-width: 780px) {
  .split { grid-template-columns: 1fr; }
}

/* ---------- Cards / paper ---------- */
.tenant-list, .tenant-table, .history-table, .col-form form,
.chosen-card, .receipt-result {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.col-form form { padding: 20px; }

.empty-hint {
  color: var(--ink-soft);
  font-size: 13.5px;
  padding: 20px;
  margin: 0;
}

/* ---------- Search + tenant list ---------- */
.search-row { margin-bottom: 10px; }
.search-row input { width: 100%; }

.tenant-list { max-height: 460px; overflow-y: auto; }

.tenant-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 13px 16px;
  border-bottom: 1px dashed var(--line);
  cursor: pointer;
  transition: background .12s ease;
}

.tenant-item:last-child { border-bottom: none; }
.tenant-item:hover { background: var(--green-tint); }
.tenant-item.selected { background: var(--green-tint); border-left: 3px solid var(--green); }

.tenant-item .t-name { font-weight: 600; font-size: 14px; }
.tenant-item .t-house { display: block; font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.tenant-item .t-loyer { font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--green-dark); font-weight: 600; }

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.field-label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

input[type="text"], input[type="number"], input[type="tel"],
input[type="date"], input[type="month"] {
  font-family: 'Inter', sans-serif;
  font-size: 14.5px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fffefb;
  color: var(--ink);
  width: 100%;
}

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

.field-hint { font-size: 12px; color: var(--ink-soft); }

.mode-row { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }

.mode-choice {
  flex: 1 1 auto;
  position: relative;
}

.mode-choice input {
  position: absolute;
  opacity: 0;
}

.mode-choice span {
  display: block;
  text-align: center;
  padding: 11px 10px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .12s ease;
}

.mode-choice input:checked + span {
  border-color: var(--green);
  background: var(--green-tint);
  color: var(--green-dark);
}

/* ---------- Buttons ---------- */
.btn-primary, .btn-secondary, .btn-ghost {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 14px;
  padding: 11px 18px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform .08s ease, opacity .12s ease;
}

.btn-primary { background: var(--green); color: var(--paper); width: 100%; }
.btn-primary:hover { opacity: 0.92; }
.btn-primary:active { transform: scale(0.99); }

.btn-secondary { background: var(--amber-tint); color: #7a5416; border: 1px solid var(--amber); }
.btn-ghost { background: transparent; color: var(--ink-soft); border: 1px solid var(--line); }

/* ---------- Chosen tenant card ---------- */
.chosen-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 18px;
  margin-bottom: 16px;
}

.chosen-info { display: flex; flex-direction: column; gap: 2px; }
.chosen-info strong { font-family: 'Space Grotesk', sans-serif; font-size: 15px; }
.chosen-info span { font-size: 12.5px; color: var(--ink-soft); }

.chosen-loyer { text-align: right; font-size: 11.5px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.04em; }
.chosen-loyer strong { display: block; font-family: 'JetBrains Mono', monospace; font-size: 15px; color: var(--green-dark); text-transform: none; letter-spacing: 0; margin-top: 2px; }

.hidden { display: none !important; }

/* ---------- Receipt result ---------- */
.receipt-result {
  margin-top: 22px;
  padding: 26px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.receipt-result h3 {
  font-family: 'Space Grotesk', sans-serif;
  margin: 6px 0 8px;
}

.code-line { font-size: 13.5px; color: var(--ink-soft); margin: 4px 0; }
#echeanceLine { font-size: 14px; margin: 4px 0 18px; }

.stamp {
  display: inline-block;
  border: 3px solid var(--green);
  color: var(--green);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.15em;
  padding: 6px 16px;
  border-radius: 6px;
  transform: rotate(-6deg);
  margin-bottom: 6px;
}

.receipt-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 6px;
}

/* ---------- Tenant table (locataires list) ---------- */
.tenant-table { max-height: 520px; overflow-y: auto; }

.tt-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.9fr auto;
  gap: 10px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px dashed var(--line);
  font-size: 13.5px;
}

.tt-row:last-child { border-bottom: none; }
.tt-row .tt-name { font-weight: 600; }
.tt-row .tt-sub { color: var(--ink-soft); font-size: 12px; }
.tt-row .tt-loyer { font-family: 'JetBrains Mono', monospace; color: var(--green-dark); font-weight: 600; }

.tt-delete {
  background: none;
  border: none;
  color: var(--red);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
}

/* ---------- Historique ---------- */
.month-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.month-total {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  color: var(--green-dark);
  font-size: 14px;
}

.history-table { overflow-x: auto; }

.hist-row {
  display: grid;
  grid-template-columns: 1.3fr 1fr 0.9fr 0.9fr 0.9fr;
  gap: 10px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px dashed var(--line);
  font-size: 13px;
}

.hist-row.head {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  font-weight: 700;
  border-bottom: 1.5px solid var(--line);
}

.hist-row:last-child { border-bottom: none; }
.hist-row .h-reste.positif { color: var(--red); font-weight: 600; }
.hist-row .h-reste.zero { color: var(--green-dark); font-weight: 600; }

@media (max-width: 680px) {
  .hist-row, .hist-row.head { grid-template-columns: 1fr 1fr; row-gap: 4px; }
  .tt-row { grid-template-columns: 1fr auto; row-gap: 4px; }
}