/* ── Variables ─────────────────────────────────────────────── */
:root {
  --navy:      #2C3340;
  --navy-dark: #1E2530;
  --teal:      #B49A6C;
  --ivory:     #F7F5F1;
  --ivory2:    #F0EBE2;
  --white:     #FFFFFF;
  --gray50:    #F7F5F1;
  --gray100:   #DDD8CF;
  --gray300:   #C4BCB0;
  --gray500:   #8C8070;
  --gray700:   #3A3530;
  --green:     #22863A;
  --amber:     #B45309;
  --red:       #B91C1C;

  --radius:    6px;
  --shadow:    0 2px 12px rgba(44,51,64,.08);
  --shadow-md: 0 4px 24px rgba(44,51,64,.12);
  --transition: 0.25s ease;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  font-family: 'DM Sans', system-ui, sans-serif;
  color: var(--gray700);
  background: var(--gray50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ═══════════════════════════════════════════════════════════ */
/*  FORMULAIRE                                                  */
/* ═══════════════════════════════════════════════════════════ */

#app-form { min-height: 100vh; display: flex; flex-direction: column; }

/* Header form */
.form-header {
  background: var(--navy);
  color: var(--white);
  padding: 0;
  border-bottom: 1px solid rgba(180,154,108,.35);
}
.header-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.logo-wrap svg { width: 48px; height: 48px; }
.cabinet-name { line-height: 1.2; }
.cabinet-main {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--white);
}
.cabinet-sub {
  display: block;
  font-size: 10px;
  color: var(--teal);
  letter-spacing: 1px;
  font-weight: 500;
}
.header-divider {
  width: 1px;
  height: 40px;
  background: rgba(180,154,108,.35);
  flex-shrink: 0;
}
.app-title h1 {
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .5px;
}
.app-title p {
  font-size: 11px;
  color: var(--teal);
  letter-spacing: .5px;
  margin-top: 2px;
}
.header-back {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: rgba(255,255,255,.6);
  text-decoration: none;
  flex-shrink: 0;
  transition: color var(--transition);
}
.header-back:hover { color: var(--teal); }

/* Form main */
.form-main {
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  padding: 32px 24px 48px;
}

/* Sections */
.form-section {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray100);
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.section-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--gray100);
  background: var(--ivory);
}
.section-num {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.section-header h2 {
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: .5px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 24px;
}
.form-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-grid.cols-1 { grid-template-columns: 1fr; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--gray500);
  letter-spacing: .5px;
  text-transform: uppercase;
}
.form-group input,
.form-group select {
  height: 44px;
  border: 1.5px solid var(--gray100);
  border-radius: var(--radius);
  padding: 0 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--gray700);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(44,51,64,.08);
}
.form-group input.error { border-color: var(--red); }
.input-wrap { position: relative; }
.input-wrap input { width: 100%; padding-right: 60px; }
.input-unit {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  font-weight: 600;
  color: var(--gray500);
  pointer-events: none;
}
.help-text { font-size: 11px; color: var(--gray500); margin-top: 2px; }
.required-mark { color: var(--amber); }

/* Mode toggle */
.mode-toggle {
  display: flex;
  border: 1.5px solid var(--gray100);
  border-radius: var(--radius);
  overflow: hidden;
  height: 44px;
}
.mode-btn {
  flex: 1;
  border: none;
  background: var(--white);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray500);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  padding: 0 12px;
}
.mode-btn.active {
  background: var(--navy);
  color: var(--white);
  font-weight: 600;
}
.mode-btn + .mode-btn { border-left: 1.5px solid var(--gray100); }

/* Submit */
.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--navy);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  padding: 0 28px;
  height: 48px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .5px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover { background: var(--navy-dark); transform: translateY(-1px); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  color: var(--gray700);
  border: 1.5px solid var(--gray100);
  border-radius: var(--radius);
  padding: 0 20px;
  height: 48px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--transition);
}
.btn-secondary:hover { border-color: var(--navy); }

/* ═══════════════════════════════════════════════════════════ */
/*  RAPPORT                                                     */
/* ═══════════════════════════════════════════════════════════ */

#app-report { min-height: 100vh; background: var(--gray50); }

/* Report header — identique DuPont */
.report-header {
  background: var(--navy);
  border-bottom: 1px solid rgba(180,154,108,.35);
  padding: 18px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.rh-left {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}
.rh-left svg { width: 44px; height: 44px; }
.rh-cabinet {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--white);
}
.rh-sub { font-size: 10px; color: var(--teal); letter-spacing: 1px; }
.rh-right { text-align: right; }
.rh-doc-type {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.5px;
  color: var(--teal);
  text-transform: uppercase;
}
.rh-doc-meta {
  font-size: 12px;
  color: rgba(255,255,255,.7);
  margin-top: 3px;
}

/* Toolbar rapport */
.report-toolbar {
  background: var(--white);
  border-bottom: 1px solid var(--gray100);
  padding: 12px 40px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.toolbar-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--gray500);
  letter-spacing: .5px;
  margin-right: auto;
}

/* Report body */
.report-body {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 40px 64px;
}

/* Summary card */
.summary-card {
  background: var(--navy);
  border-radius: var(--radius);
  padding: 28px 36px;
  margin-bottom: 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.summary-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 5px;
  background: var(--teal);
}
.summary-item {
  padding: 0 24px;
  border-right: 1px solid rgba(255,255,255,.1);
}
.summary-item:first-child { padding-left: 8px; }
.summary-item:last-child { border-right: none; }
.summary-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.summary-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -.5px;
}
.summary-sub {
  font-size: 11px;
  color: rgba(255,255,255,.5);
  margin-top: 3px;
}

/* Report sections */
.report-section {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray100);
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.section-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--navy);
  text-transform: uppercase;
  padding: 16px 24px;
  border-bottom: 1px solid var(--gray100);
  background: var(--ivory);
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title .num {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  font-size: 11px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

/* Recap params */
.params-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding: 24px;
}
.param-item { padding: 12px 20px; border-right: 1px solid var(--gray100); }
.param-item:last-child { border-right: none; }
.param-label { font-size: 11px; color: var(--gray500); font-weight: 600; letter-spacing: .5px; margin-bottom: 4px; }
.param-value { font-size: 15px; font-weight: 700; color: var(--navy); }

/* Cost breakdown */
.cost-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  padding: 24px;
}
.cost-card {
  border-radius: var(--radius);
  border: 1px solid var(--gray100);
  padding: 20px;
  text-align: center;
}
.cost-card.highlight {
  background: var(--navy);
  border-color: var(--navy);
}
.cost-card-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--gray500);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.cost-card.highlight .cost-card-label { color: var(--teal); }
.cost-card-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
}
.cost-card.highlight .cost-card-value { color: var(--white); }
.cost-card-pct {
  font-size: 11px;
  color: var(--gray500);
  margin-top: 4px;
}

/* Chart */
.chart-wrap {
  padding: 24px;
  height: 260px;
  position: relative;
}

/* Amortization table */
.table-wrap {
  overflow-x: auto;
  padding: 0;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
thead tr {
  background: var(--navy);
  color: var(--white);
}
thead th {
  padding: 12px 16px;
  text-align: right;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  white-space: nowrap;
}
thead th:first-child { text-align: left; }
tbody tr { border-bottom: 1px solid var(--gray100); }
tbody tr:last-child { border-bottom: none; }
tbody tr:nth-child(even) { background: var(--ivory); }
tbody tr:hover { background: var(--ivory2); }
td {
  padding: 10px 16px;
  text-align: right;
  color: var(--gray700);
  white-space: nowrap;
}
td:first-child { text-align: left; font-weight: 600; color: var(--navy); }
td.interest { color: var(--amber); font-weight: 500; }
td.total { font-weight: 700; color: var(--navy); }
tfoot tr { background: var(--navy); color: var(--white); }
tfoot td {
  padding: 12px 16px;
  font-weight: 700;
  font-size: 13px;
  color: var(--white);
}
tfoot td:first-child { color: var(--teal); letter-spacing: .5px; }

/* Print & PDF */
.btn-pdf {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--navy);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  padding: 0 20px;
  height: 38px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}
.btn-pdf:hover { background: var(--navy-dark); }
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  color: var(--gray700);
  border: 1.5px solid var(--gray100);
  border-radius: var(--radius);
  padding: 0 16px;
  height: 38px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--transition);
}
.btn-back:hover { border-color: var(--navy); }

/* ═══════════════════════════════════════════════════════════ */
/*  RESPONSIVE                                                  */
/* ═══════════════════════════════════════════════════════════ */
@media (max-width: 700px) {
  .form-grid { grid-template-columns: 1fr; }
  .form-grid.cols-3 { grid-template-columns: 1fr; }
  .summary-card { grid-template-columns: 1fr 1fr; gap: 16px; padding: 20px; }
  .summary-item { border-right: none; padding: 0; }
  .cost-grid { grid-template-columns: 1fr; }
  .params-grid { grid-template-columns: 1fr 1fr; }
  .report-body { padding: 16px; }
  .report-header { padding: 16px; }
  .report-toolbar { padding: 12px 16px; }
  .header-inner { padding: 16px; }
  .rh-doc-type { font-size: 9px; }
}

/* ═══════════════════════════════════════════════════════════ */
/*  @PRINT                                                      */
/* ═══════════════════════════════════════════════════════════ */
@media print {
  #app-form { display: none !important; }
  #app-report { display: block !important; }
  .report-toolbar { display: none !important; }
  .report-header { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .summary-card { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  thead tr { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  tfoot tr { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  body { background: white; }
  .report-section { box-shadow: none; break-inside: avoid; }
}