/* ============================================================
   DISPOSITIF JEANBRUN — FEUILLE DE STYLE PRINCIPALE
   Style institutionnel sobre
   ============================================================ */

/* --- Variables & Reset --- */
:root {
  --navy:          #1e2d5e;
  --navy-dark:     #152044;
  --blue-medium:   #2e6da4;
  --blue-light:    #4a8bbf;
  --blue-pale:     #dce8f3;
  --blue-bg:       #eef4fa;
  --white:         #ffffff;
  --gray-light:    #f5f6f8;
  --gray-mid:      #e2e6ea;
  --gray-border:   #c8d0d9;
  --text-dark:     #1a1a2e;
  --text-body:     #3a3a4a;
  --text-muted:    #6b7280;
  --accent:        #4a8bbf;
  --warning-bg:    #fff8e6;
  --warning-border:#d4a017;
  --notice-bg:     #e8f0f8;
  --notice-border: #2e6da4;
  --success-bg:    #eaf5ea;
  --success-border:#3a8a3a;
  --important-bg:  #2e6da4;
  --red-error:     #c0392b;
  --highlight:     #f0f4ff;
  --font-serif:    Georgia, 'Times New Roman', serif;
  --font-sans:     -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --shadow-sm:     0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:     0 3px 10px rgba(0,0,0,0.10);
  --radius:        4px;
  --radius-lg:     8px;
}

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

/* Empêche tout débordement horizontal de page */
html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  max-width: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-body);
  background: var(--white);
  overflow-x: hidden;
  max-width: 100vw;
}

/* Tous les médias et éléments remplacés restent dans leur conteneur */
img, video, iframe, embed, object, svg { max-width: 100%; height: auto; display: block; }

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--navy);
  line-height: 1.25;
}

h1 { font-size: 2.2rem; margin-bottom: 1rem; }
h2 { font-size: 1.7rem; margin-bottom: 0.85rem; }
h3 { font-size: 1.3rem; margin-bottom: 0.65rem; }
h4 { font-size: 1.05rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--blue-medium); text-decoration: underline; }
a:hover { color: var(--navy); }

strong { font-weight: 700; color: var(--text-dark); }

ul, ol { margin: 0.5rem 0 1rem 1.4rem; }
ul li, ol li { margin-bottom: 0.4rem; }

/* --- Layout --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container--narrow {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Header --- */
.site-header {
  background: var(--navy-dark);
  border-bottom: 3px solid var(--blue-medium);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
  min-width: 0;       /* Empêche le flex container de déborder */
}

.site-logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  min-width: 0;        /* Permet la troncature dans flex */
  overflow: hidden;
}

.site-logo__title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: bold;
  color: var(--white);
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-logo__subtitle {
  font-size: 0.72rem;
  color: var(--blue-pale);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --- Navigation --- */
.site-nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.25rem;
}

.site-nav a {
  display: block;
  padding: 0.45rem 0.9rem;
  color: var(--blue-pale);
  text-decoration: none;
  font-size: 0.88rem;
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a.active {
  background: var(--blue-medium);
  color: var(--white);
}

.site-nav a.nav-cta {
  background: var(--blue-medium);
  color: var(--white);
  font-weight: 600;
  border: 1px solid var(--blue-light);
}

.site-nav a.nav-cta:hover {
  background: var(--blue-light);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.4rem;
}

/* --- Hero Section --- */
.hero {
  background: var(--navy);
  color: var(--white);
  padding: 3.5rem 1.5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(46,109,164,0.3) 0%, transparent 60%);
  pointer-events: none;
}

.hero .container { position: relative; }

.hero__eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--blue-medium);
  color: var(--white);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  color: var(--white);
  margin-bottom: 1rem;
  line-height: 1.15;
}

.hero__title span {
  color: #7fc4ed;
}

.hero__lead {
  font-size: 1.1rem;
  color: #c8d8ea;
  max-width: 640px;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white);
  font-size: 0.85rem;
  padding: 0.4rem 0.85rem;
  border-radius: 20px;
}

.badge--highlight {
  background: rgba(74,139,191,0.35);
  border-color: var(--blue-light);
}

/* --- Alert / Disclaimer --- */
.alert {
  border-left: 4px solid;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.alert--warning {
  background: var(--warning-bg);
  border-color: var(--warning-border);
  color: #7a5500;
}

.alert--notice {
  background: var(--notice-bg);
  border-color: var(--notice-border);
  color: var(--navy);
}

.alert--important {
  background: var(--important-bg);
  border-color: #1a4d7a;
  color: var(--white);
}

.alert--important strong { color: var(--white); }

.alert--success {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: #245524;
}

.alert__title {
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
  display: block;
}

/* --- Sections --- */
.section {
  padding: 3.5rem 0;
}

.section--alt {
  background: var(--gray-light);
}

.section--blue {
  background: var(--blue-bg);
}

.section--dark {
  background: var(--navy);
  color: var(--white);
}

.section--dark h2,
.section--dark h3 {
  color: var(--white);
}

.section-title {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--blue-medium);
  display: inline-block;
}

.section-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 680px;
}

/* --- Key Numbers --- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.kpi-card {
  background: var(--white);
  border: 1px solid var(--gray-mid);
  border-top: 3px solid var(--blue-medium);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.kpi-card__value {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: bold;
  color: var(--navy);
  display: block;
}

.kpi-card__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
  display: block;
}

/* --- Cards / Panels --- */
.card {
  background: var(--white);
  border: 1px solid var(--gray-mid);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.card--accent {
  border-top: 3px solid var(--blue-medium);
}

.card--navy {
  background: var(--navy);
  color: var(--white);
  border: none;
}

.card--navy h3, .card--navy h4 { color: var(--white); }
.card--navy p, .card--navy li { color: #c8d8ea; }

.card__tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blue-medium);
  margin-bottom: 0.5rem;
  display: block;
}

/* --- Two-column grid --- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

/* --- Tables --- */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.5rem 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  font-family: var(--font-sans);
}

/* Seules les tables dans un .table-wrap ont un min-width pour déclencher le scroll interne */
.table-wrap table {
  min-width: 420px;
}

caption {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: left;
  padding: 0.5rem 0 0.5rem;
  caption-side: top;
  font-style: italic;
}

thead {
  background: var(--navy);
  color: var(--white);
}

thead th {
  padding: 0.85rem 1rem;
  text-align: left;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

tbody tr:nth-child(even) { background: var(--gray-light); }
tbody tr:hover { background: var(--blue-bg); }

tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--gray-mid);
  font-family: var(--font-sans);
}

tbody td:first-child { font-weight: 500; }

.td-value {
  font-weight: 700;
  color: var(--navy);
}

.td-value--blue { color: var(--blue-medium); }

tfoot td {
  background: var(--blue-bg);
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 0.6rem 1rem;
  font-style: italic;
  font-family: var(--font-sans);
}

/* --- Comparison Table --- */
.compare-table thead th:first-child { background: var(--navy-dark); }
.compare-table thead th:nth-child(2) { background: #444; }
.compare-table thead th:nth-child(3) { background: var(--blue-medium); }
.compare-table tbody td:nth-child(3) {
  color: var(--blue-medium);
  font-weight: 600;
}

/* --- Process / Steps --- */
.steps {
  counter-reset: step;
  list-style: none;
  margin: 1.5rem 0;
  padding: 0;
}

.steps li {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  min-width: 2rem;
  height: 2rem;
  background: var(--navy);
  color: var(--white);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

/* --- Two-column volets --- */
.volet-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

.volet {
  border: 1px solid var(--gray-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.volet__header {
  background: var(--navy);
  color: var(--white);
  padding: 1rem 1.25rem;
}

.volet__badge {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blue-pale);
  display: block;
  margin-bottom: 0.2rem;
}

.volet__header-sub {
  font-size: 0.8rem;
  color: var(--blue-pale);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.volet__header h3 {
  color: var(--white);
  margin: 0.2rem 0 0;
}

.volet__body {
  padding: 1.25rem;
  background: var(--white);
}

.volet__period {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--blue-bg);
  border: 1px solid var(--blue-pale);
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  font-size: 0.85rem;
  margin-top: 1rem;
}

.volet__period-label {
  font-weight: 700;
  color: var(--navy);
  white-space: nowrap;
}

/* --- Calculation Box --- */
.calc-box {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin: 1.5rem 0;
  overflow: hidden;          /* Contient tous les enfants potentiellement larges */
  word-break: break-word;
  overflow-wrap: break-word;
}

/* Tout le texte à l'intérieur d'une calc-box est blanc */
.calc-box p,
.calc-box li,
.calc-box ul,
.calc-box ol,
.calc-box small,
.calc-box span { color: var(--white); }

.calc-box strong { color: var(--white); font-weight: 700; }

.calc-box h2, .calc-box h3 { color: #7fc4ed; }
.calc-box h4 { color: #7fc4ed; margin-bottom: 1rem; }

.calc-box__title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: bold;
  color: #7fc4ed;
  margin-bottom: 1rem;
  display: block;
}

.calc-box__formula {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: center;
  color: var(--white);
  line-height: 1.65;
  margin: 0.75rem 0;
  overflow-x: auto;          /* Permet le scroll si le contenu est trop large */
  word-break: break-word;
  overflow-wrap: break-word;
}

.calc-box__result {
  background: rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 0.85rem 1.1rem;
  font-size: 1.2rem;
  font-weight: 700;
  text-align: center;
  margin-top: 1rem;
  color: var(--white);
  letter-spacing: 0.03em;
}

.calc-box__result--negative { color: #6ed86e; }

/* Tableaux imbriqués dans une calc-box :
   cellules blanches, texte en couleur du fond */
.calc-box .table-wrap {
  box-shadow: none;
  border-radius: var(--radius);
  overflow: hidden;
}

.calc-box table {
  min-width: 0;
}

.calc-box table thead {
  background: rgba(255,255,255,0.18);
}

.calc-box table thead th {
  color: var(--white);
}

.calc-box table tbody tr { background: var(--white); }
.calc-box table tbody tr:nth-child(even) { background: var(--blue-bg); }
.calc-box table tbody tr:hover { background: var(--blue-pale); }

.calc-box table tbody td,
.calc-box table tbody td:first-child {
  color: var(--navy);
  border-bottom-color: var(--gray-mid);
}

.calc-box table tfoot td {
  background: var(--blue-bg);
  color: var(--text-muted);
}

/* --- Simulation Table --- */
.sim-result {
  background: var(--blue-medium);
  color: var(--white);
  text-align: center;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.85rem;
  border-radius: var(--radius);
  margin-top: 1rem;
}

/* --- CTA Guide (bandeau inline mid-content) --- */
.cta-guide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  background: var(--blue-bg);
  border: 1px solid var(--blue-pale);
  border-left: 4px solid var(--blue-medium);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin: 2.5rem 0;
}

.cta-guide__text { min-width: 0; }

.cta-guide__eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blue-medium);
  display: block;
  margin-bottom: 0.2rem;
}

.cta-guide__title {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--navy);
  font-weight: bold;
  margin-bottom: 0.2rem;
}

.cta-guide__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin: 0;
}

/* --- Category Cards (3 colonnes plafonds) --- */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: 2rem 0;
}

.cat-card {
  border: 2px solid var(--navy);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: center;
}

.cat-card__header {
  background: var(--navy);
  color: var(--white);
  padding: 1rem;
}

.cat-card__header h3 {
  color: var(--white);
  font-size: 1.1rem;
  margin: 0;
}

.cat-card__body {
  padding: 1rem;
  background: var(--white);
  font-size: 0.88rem;
  color: var(--text-body);
  text-align: left;
}

/* --- CTA Section --- */
.cta-section {
  background: var(--navy);
  color: var(--white);
  padding: 3rem 1.5rem;
  text-align: center;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: 0.75rem;
}

.cta-section p {
  color: #c8d8ea;
  max-width: 560px;
  margin: 0 auto 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background 0.15s, transform 0.1s;
}

.btn:hover { transform: translateY(-1px); }

.btn--primary {
  background: var(--blue-medium);
  color: var(--white);
  border: 2px solid var(--blue-light);
}

.btn--primary:hover {
  background: var(--blue-light);
  color: var(--white);
}

.btn--white {
  background: var(--white);
  color: var(--navy);
  border: 2px solid var(--white);
}

.btn--white:hover {
  background: var(--blue-pale);
  color: var(--navy);
}

.btn--outline {
  background: transparent;
  color: var(--blue-medium);
  border: 2px solid var(--blue-medium);
}

.btn--outline:hover {
  background: var(--blue-medium);
  color: var(--white);
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: 1.05rem;
}

/* --- Nav Cards (page navigation) --- */
.nav-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.nav-card {
  display: block;
  text-decoration: none;
  background: var(--white);
  border: 1px solid var(--gray-mid);
  border-left: 4px solid var(--blue-medium);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s, border-left-color 0.15s;
}

.nav-card:hover {
  box-shadow: var(--shadow-md);
  border-left-color: var(--navy);
  text-decoration: none;
}

.nav-card__label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--blue-medium);
  display: block;
  margin-bottom: 0.35rem;
}

.nav-card__title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--navy);
  display: block;
  margin-bottom: 0.35rem;
}

.nav-card__desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: block;
  line-height: 1.45;
}

/* --- Download Form --- */
.form-section {
  background: var(--white);
  border: 1px solid var(--gray-mid);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-dark);
  margin-bottom: 0.35rem;
}

.form-group label .required {
  color: #c0392b;
  margin-left: 0.2rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  color: var(--text-dark);
  background: var(--white);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-medium);
  box-shadow: 0 0 0 3px rgba(46,109,164,0.12);
}

.form-group textarea { resize: vertical; min-height: 90px; }

.form-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

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

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.form-checkbox input[type="checkbox"] {
  width: auto;
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.form-checkbox label {
  font-size: 0.85rem;
  font-weight: normal;
  color: var(--text-body);
}

/* --- Breadcrumb --- */
.breadcrumb {
  padding: 0.7rem 0;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--gray-mid);
  margin-bottom: 0;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb li + li::before {
  content: '›';
  margin-right: 0.25rem;
  color: var(--gray-border);
}

.breadcrumb a { text-decoration: none; color: var(--blue-medium); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb [aria-current] { color: var(--text-muted); }

/* --- Page header (interior pages) --- */
.page-header {
  background: var(--navy);
  color: var(--white);
  padding: 2.5rem 1.5rem;
  border-bottom: 3px solid var(--blue-medium);
}

.page-header__eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue-pale);
  margin-bottom: 0.5rem;
  display: block;
}

.page-header h1 {
  color: var(--white);
  font-size: 2rem;
  margin-bottom: 0.6rem;
}

.page-header__lead {
  color: #c8d8ea;
  font-size: 1rem;
  max-width: 640px;
}

/* --- TOC (table of contents sidebar) --- */
.toc {
  background: var(--gray-light);
  border: 1px solid var(--gray-mid);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  font-size: 0.88rem;
}

.toc__title {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.78rem;
  color: var(--navy);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--blue-medium);
  display: block;
}

.toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc li { margin-bottom: 0.3rem; }

.toc a {
  text-decoration: none;
  color: var(--text-body);
  padding: 0.2rem 0.3rem;
  display: block;
  border-radius: var(--radius);
}

.toc a:hover {
  background: var(--blue-bg);
  color: var(--navy);
}

/* --- Layout with sidebar --- */
.content-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2.5rem;
  align-items: start;
}

.sidebar { position: sticky; top: 80px; }

/* --- Content section heading --- */
.content-section {
  margin-bottom: 3rem;
  scroll-margin-top: 80px;
}

.content-section h2 {
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--blue-medium);
  margin-bottom: 1.25rem;
}

/* --- Inline highlight --- */
.highlight-box {
  background: var(--highlight);
  border: 1px solid var(--blue-pale);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  margin: 1rem 0;
}

.highlight-box--dark {
  background: var(--blue-bg);
  border-color: var(--blue-medium);
}

/* --- Footer --- */
.site-footer {
  background: var(--navy-dark);
  color: #8da3b8;
  padding: 2.5rem 1.5rem;
  font-size: 0.82rem;
  margin-top: 0;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: start;
}

.footer-logo {
  font-family: var(--font-serif);
  color: var(--blue-pale);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.footer-disclaimer {
  font-size: 0.78rem;
  color: #647a8e;
  max-width: 480px;
  line-height: 1.5;
}

.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  text-align: right;
}

.footer-nav a {
  color: #8da3b8;
  text-decoration: none;
  font-size: 0.82rem;
}

.footer-nav a:hover { color: var(--blue-pale); }

.footer-bottom {
  max-width: 1100px;
  margin: 1.5rem auto 0;
  padding-top: 1.2rem;
  border-top: 1px solid #2a3d55;
  font-size: 0.75rem;
  color: #647a8e;
}

/* --- Utilities --- */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.5rem !important; }
.mb-2 { margin-bottom: 1rem !important; }
.mb-3 { margin-bottom: 1.5rem !important; }
.mt-2 { margin-top: 1rem !important; }
.mt-3 { margin-top: 1.5rem !important; }

.label-blue {
  display: inline-block;
  background: var(--blue-medium);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
}

.divider {
  border: none;
  border-top: 1px solid var(--gray-mid);
  margin: 2rem 0;
}

/* ============================================================
   RESPONSIVE — Mobile first
   Breakpoints : 900px (tablettes) / 700px (grands téléphones) / 480px (petits téléphones)
   ============================================================ */

/* ---- ≤ 900px : tablettes et petits desktops ---- */
@media (max-width: 900px) {

  /* Conteneurs */
  .container,
  .container--narrow { padding: 0 1.25rem; }

  /* Layout sidebar → empilé */
  .content-with-sidebar { grid-template-columns: 1fr; }
  .content-with-sidebar aside { position: static; }

  /* Grilles → 1 colonne */
  .grid-2,
  .volet-grid,
  .grid-3,
  .cat-grid { grid-template-columns: 1fr; }

  /* Formulaire */
  .form-row { grid-template-columns: 1fr; }

  /* Footer */
  .footer-inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-nav ul { text-align: left; }

  /* Typographie */
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }
  .hero__title { font-size: 2rem; }
  .hero__lead { max-width: 100%; }

  /* Hero / page-header */
  .hero { padding: 2.5rem 1.25rem; }
  .page-header { padding: 2rem 1.25rem; }
  .page-header h1 { font-size: 1.75rem; }

  /* Sections / CTA */
  .section { padding: 2.75rem 0; }
  .cta-section { padding: 2.5rem 1.25rem; }

  /* Volets */
  .volet-grid { gap: 1rem; }

  /* Calc-box formulas */
  .calc-box__formula { font-size: 0.95rem; }

  /* TOC pleine largeur */
  .toc { padding: 1rem 1.25rem; }
}

/* ---- ≤ 700px : grands téléphones ---- */
@media (max-width: 700px) {

  /* -------- Navigation -------- */
  .site-nav { display: none; }
  .nav-toggle { display: block; }
  .site-nav.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100vw;
    background: var(--navy-dark);
    border-top: 1px solid var(--blue-medium);
    padding: 0.75rem;
    z-index: 200;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  }
  .site-nav.open ul {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }
  .site-nav.open a { padding: 0.65rem 1rem; border-radius: 0; }

  /* Header logo : police réduite sur mobile */
  .site-logo__title { font-size: 0.95rem; }
  .site-logo__subtitle { display: none; }
  .header-inner { padding: 0.75rem 1rem; }

  /* -------- Grilles KPI -------- */
  .kpi-grid { grid-template-columns: 1fr 1fr; }

  /* -------- Tableaux -------- */
  .table-wrap table { min-width: 360px; }
  table { font-size: 0.82rem; }
  thead th { padding: 0.6rem 0.75rem; font-size: 0.78rem; white-space: normal; }
  tbody td { padding: 0.55rem 0.75rem; }
  caption { font-size: 0.78rem; padding: 0.4rem 0.75rem; }

  /* -------- Cards -------- */
  .card { padding: 1.25rem; }
  .card__tag { font-size: 0.68rem; }

  /* -------- Volets -------- */
  .volet__header { padding: 0.85rem 1rem; }
  .volet__body { padding: 1rem; }
  .volet__period { flex-wrap: wrap; gap: 0.4rem; font-size: 0.82rem; }

  /* -------- Calc-box -------- */
  .calc-box { padding: 1.25rem; }
  .calc-box__formula {
    font-size: 0.88rem;
    padding: 0.85rem 1rem;
    text-align: left;
    line-height: 1.6;
  }
  .calc-box__title { font-size: 1rem; }
  .calc-box__result { font-size: 1rem; padding: 0.7rem; }

  /* -------- Alerts -------- */
  .alert { padding: 0.85rem 1rem; font-size: 0.9rem; }
  .alert__title { font-size: 0.8rem; }

  /* -------- TOC -------- */
  .toc { font-size: 0.85rem; padding: 0.9rem 1rem; }
  .toc ul ul { padding-left: 0.75rem; }

  /* -------- Hero -------- */
  .hero { padding: 2rem 1.25rem; }
  .hero__title { font-size: 1.75rem; }
  .hero__lead { font-size: 0.95rem; }
  .hero__badges { gap: 0.5rem; }
  .badge { font-size: 0.78rem; padding: 0.3rem 0.65rem; }

  /* -------- Page header -------- */
  .page-header { padding: 1.5rem 1.25rem; }
  .page-header h1 { font-size: 1.5rem; }
  .page-header__lead { font-size: 0.9rem; }

  /* -------- Typographie -------- */
  h1 { font-size: 1.65rem; }
  h2 { font-size: 1.35rem; }
  h3 { font-size: 1.15rem; }

  /* -------- Sections / CTA -------- */
  .section { padding: 2.25rem 0; }
  .cta-section { padding: 2rem 1.25rem; }
  .cta-section h2 { font-size: 1.35rem; }
  .cta-section p { font-size: 0.92rem; max-width: 100%; }

  /* -------- Formulaire -------- */
  .form-section { padding: 1.5rem; }
  .form-group { margin-bottom: 1rem; }

  /* -------- CTA Guide -------- */
  .cta-guide { flex-direction: column; align-items: flex-start; gap: 1rem; padding: 1rem 1.25rem; }
  .cta-guide .btn { width: 100%; justify-content: center; }

  /* -------- Steps -------- */
  .steps li { gap: 0.75rem; margin-bottom: 1.25rem; }
  .steps li::before { min-width: 1.85rem; height: 1.85rem; font-size: 0.85rem; }

  /* -------- Nav cards -------- */
  .nav-cards { grid-template-columns: 1fr; }
  .nav-card { padding: 1rem 1.25rem; }

  /* -------- Divers -------- */
  .sim-result { font-size: 0.88rem; padding: 0.75rem; }
  .breadcrumb { font-size: 0.78rem; }
  .site-footer { padding: 2rem 1.25rem; }
  .kpi-card__value { font-size: 1.75rem; }
  .content-section { margin-bottom: 2.5rem; }
}

/* ---- ≤ 480px : petits téléphones ---- */
@media (max-width: 480px) {

  /* -------- Layout -------- */
  .container,
  .container--narrow { padding: 0 0.9rem; }
  .kpi-grid { grid-template-columns: 1fr; }

  /* -------- Base -------- */
  body { font-size: 15px; }

  /* -------- Typographie -------- */
  h1 { font-size: 1.45rem; }
  h2 { font-size: 1.2rem; }
  h3 { font-size: 1.1rem; }
  h4 { font-size: 0.97rem; }

  /* -------- Header -------- */
  .header-inner { padding: 0.65rem 0.9rem; }
  .site-logo__title { font-size: 0.88rem; }

  /* -------- Hero -------- */
  .hero { padding: 1.75rem 0.9rem; }
  .hero__title { font-size: 1.45rem; line-height: 1.2; }
  .hero__lead { font-size: 0.88rem; }
  .hero__badges { gap: 0.35rem; }
  .badge { font-size: 0.72rem; padding: 0.25rem 0.55rem; }

  /* -------- Page header -------- */
  .page-header { padding: 1.25rem 0.9rem; }
  .page-header h1 { font-size: 1.3rem; }
  .page-header__lead { font-size: 0.85rem; }

  /* -------- Sections -------- */
  .section { padding: 1.75rem 0; }
  .cta-section { padding: 1.75rem 0.9rem; }
  .cta-section h2 { font-size: 1.2rem; }

  /* -------- Buttons -------- */
  .btn { font-size: 0.87rem; padding: 0.65rem 1.25rem; }
  .btn--lg { padding: 0.8rem 1.4rem; font-size: 0.92rem; }

  /* -------- Cards -------- */
  .card { padding: 1rem; }
  .kpi-card { padding: 0.9rem; }
  .kpi-card__value { font-size: 1.55rem; }

  /* -------- Tableaux -------- */
  .table-wrap table { min-width: 320px; }
  table { font-size: 0.78rem; }
  thead th { padding: 0.5rem 0.6rem; font-size: 0.74rem; }
  tbody td { padding: 0.5rem 0.6rem; }

  /* -------- Volets -------- */
  .volet__header { padding: 0.75rem 0.85rem; }
  .volet__body { padding: 0.85rem; }

  /* -------- Calc-box -------- */
  .calc-box { padding: 1rem 0.9rem; }
  .calc-box__formula { font-size: 0.8rem; padding: 0.7rem 0.85rem; }
  .calc-box__title { font-size: 0.9rem; margin-bottom: 0.65rem; }
  .calc-box__result { font-size: 0.88rem; padding: 0.6rem; }

  /* -------- Alerts -------- */
  .alert { padding: 0.75rem 0.85rem; font-size: 0.86rem; }
  .alert__title { font-size: 0.77rem; margin-bottom: 0.3rem; }

  /* -------- TOC -------- */
  .toc { padding: 0.85rem 0.9rem; font-size: 0.82rem; }

  /* -------- Steps -------- */
  .steps li { gap: 0.6rem; margin-bottom: 1.1rem; }
  .steps li::before { min-width: 1.6rem; height: 1.6rem; font-size: 0.78rem; }

  /* -------- Nav card -------- */
  .nav-card { padding: 0.85rem 1rem; }
  .nav-card__title { font-size: 0.95rem; }

  /* -------- Formulaire -------- */
  .form-section { padding: 1.1rem 0.9rem; }
  .form-group input,
  .form-group select,
  .form-group textarea { font-size: 0.9rem; padding: 0.55rem 0.75rem; }

  /* -------- Footer -------- */
  .site-footer { padding: 1.5rem 0.9rem; font-size: 0.77rem; }
  .footer-inner { gap: 0.9rem; }

  /* -------- Divers -------- */
  .sim-result { font-size: 0.8rem; padding: 0.6rem; }
  .content-section { margin-bottom: 2rem; }
  .section-title { font-size: 1.25rem; }
}