/*
 * KnowHub - Styles pour articles
 * Adapté aux couleurs EFID (#77cbf3)
 */

:root {
  /* Couleurs EFID */
  --efid-cyan: #77cbf3;
  --efid-cyan-light: #a8dff7;
  --efid-cyan-dark: #5ab3e0;

  /* Couleurs système */
  --text-main: #1f2933;
  --text-muted: #5a6b7b;
  --border-soft: #d0d7e2;
  --bg-body: #f5f7fa;
  --bg-soft: #f4f7fc;
  --white: #ffffff;

  /* Couleurs d'accent */
  --accent-warning: #f97316;
  --accent-warning-bg: #fff7ed;
  --accent-info: #3b82f6;
  --accent-info-bg: #eff6ff;
}

/* Reset et base */
.knowhub-article {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
}

/* Header d'article */
.knowhub-header {
  background: linear-gradient(135deg, var(--efid-cyan) 0%, var(--efid-cyan-dark) 100%);
  color: var(--white);
  padding: 2.5rem 1.5rem 2rem;
}

.knowhub-header-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.knowhub-kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  opacity: 0.9;
  margin-bottom: 0.5rem;
}

/* Bouton CTA sticky */
.knowhub-cta-btn {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--efid-cyan);
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(119, 203, 243, 0.4);
}

.knowhub-cta-btn:hover {
  background: var(--efid-cyan-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(119, 203, 243, 0.5);
  text-decoration: none;
}

@media (max-width: 600px) {
  .knowhub-cta-btn {
    top: 10px;
    right: 10px;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }
}

.knowhub-title {
  font-size: clamp(1.9rem, 3vw, 2.3rem);
  margin: 0 0 0.75rem;
  font-weight: 600;
}

.knowhub-subtitle {
  max-width: 650px;
  font-size: 0.98rem;
  opacity: 0.95;
}

/* Badge année */
.knowhub-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  font-size: 0.78rem;
  margin-top: 0.75rem;
  font-weight: 500;
}

.knowhub-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--white);
  opacity: 0.8;
}

/* Contenu principal */
.knowhub-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

/* Grille layout */
.knowhub-grid {
  display: block;
}

@media (min-width: 960px) {
  .knowhub-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1.4fr);
    gap: 2rem;
    align-items: flex-start;
  }
}

/* Cartes/Blocs */
.knowhub-card {
  background: var(--white);
  border-radius: 10px;
  padding: 1.5rem 1.75rem;
  border: 1px solid var(--border-soft);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.03);
  margin-bottom: 1.5rem;
}

.knowhub-card-title {
  font-size: 1.1rem;
  margin: 0 0 0.75rem;
  font-weight: 600;
  color: var(--efid-cyan-dark);
}

.knowhub-section-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.knowhub-card h2 {
  font-size: 1.3rem;
  margin: 0 0 1rem;
  color: var(--text-main);
}

.knowhub-card h3 {
  font-size: 1.05rem;
  margin: 1.2rem 0 0.5rem;
  color: var(--efid-cyan-dark);
}

.knowhub-card h4 {
  font-size: 0.95rem;
  margin: 1.1rem 0 0.5rem;
  color: var(--text-main);
  font-weight: 600;
}

.knowhub-card p {
  font-size: 0.95rem;
  margin: 0 0 0.7rem;
  color: var(--text-main);
}

.knowhub-muted {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Listes */
.knowhub-card ul {
  margin: 0.4rem 0 0.8rem 1.1rem;
  padding: 0;
  font-size: 0.95rem;
}

.knowhub-card li {
  margin-bottom: 0.25rem;
}

/* Encadr� attention (warning) */
.knowhub-callout-warning {
  border-left: 4px solid var(--accent-warning);
  background: var(--accent-warning-bg);
  padding: 0.9rem 1rem;
  border-radius: 8px;
  font-size: 0.92rem;
  margin: 1rem 0;
}

/* Encadr� analyse (info) */
.knowhub-callout-analysis {
  border-left: 4px solid var(--efid-cyan);
  background: var(--bg-soft);
  padding: 1rem 1.1rem;
  border-radius: 10px;
  font-size: 0.95rem;
  margin-top: 1rem;
}

.knowhub-callout-tag {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  display: block;
}

/* Exemple bloc */
.knowhub-example-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.knowhub-example-title {
  font-weight: 600;
  color: var(--text-main);
  font-size: 1.02rem;
}

.knowhub-example-tag {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.knowhub-example-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

/* Tables de calcul */
.knowhub-table-wrapper {
  margin: 0.75rem 0 0.9rem;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  background: var(--bg-soft);
}

.knowhub-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.knowhub-table thead {
  background: var(--efid-cyan);
  color: var(--white);
}

.knowhub-table th,
.knowhub-table td {
  padding: 0.6rem 0.75rem;
  text-align: left;
}

.knowhub-table tbody tr:nth-child(even) {
  background: #e7f4fb;
}

.knowhub-table td.amount {
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.knowhub-table-footer {
  padding: 0.6rem 0.75rem 0.8rem;
  background: #f9fafb;
  border-top: 1px solid var(--border-soft);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Bouton retour flottant */
.knowhub-back-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  background: #1a4d7a;
  color: var(--white);
  width: 45px;
  height: 45px;
  border-radius: 50%;
  text-decoration: none;
  font-size: 1.3rem;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(26, 77, 122, 0.4);
  transition: all 0.2s ease;
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.knowhub-back-btn:hover {
  background: #2a5d8a;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(26, 77, 122, 0.5);
  color: var(--white);
  text-decoration: none;
}

/* Responsive */
@media (max-width: 600px) {
  .knowhub-card {
    padding: 1.25rem 1.3rem;
  }

  .knowhub-header {
    padding: 2rem 1.25rem 1.7rem;
  }

  .knowhub-main {
    padding: 1.7rem 1.25rem 2.5rem;
  }

  .knowhub-back-btn {
    top: 10px;
    left: 10px;
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }

  .knowhub-example-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ========================================
   CALCULATEUR - Styles specifiques
   ======================================== */

/* Input du calculateur */
.knowhub-calculator-input {
  width: 100%;
  padding: 1rem 1.25rem;
  font-size: 1.5rem;
  font-weight: 600;
  border: 2px solid var(--border-soft);
  border-radius: 10px;
  text-align: right;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  font-variant-numeric: tabular-nums;
}

.knowhub-calculator-input:focus {
  outline: none;
  border-color: var(--efid-cyan);
  box-shadow: 0 0 0 3px rgba(119, 203, 243, 0.2);
}

.knowhub-calculator-input::placeholder {
  color: #9ca3af;
  font-weight: 400;
}

/* Groupe input avec label */
.knowhub-input-group {
  margin-bottom: 1.5rem;
}

.knowhub-input-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.knowhub-input-suffix {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.knowhub-input-suffix .suffix-text {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* Ligne totale du tableau */
.knowhub-table tbody tr.total-row {
  background: #1a4d7a !important;
  color: var(--white);
  font-weight: 600;
}

.knowhub-table tbody tr.total-row td {
  border-top: 2px solid #1a4d7a;
}

/* Box de resume */
.knowhub-summary-box {
  background: linear-gradient(135deg, #1a4d7a 0%, #2a5d8a 100%);
  color: var(--white);
  border-radius: 12px;
  padding: 1.5rem;
  margin-top: 1.5rem;
}

.knowhub-summary-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.85;
  margin-bottom: 1rem;
}

/* Tableau resume */
.knowhub-summary-table {
  width: 100%;
  border-collapse: collapse;
  color: white;
}

.knowhub-summary-table th,
.knowhub-summary-table td {
  padding: 0.5rem 0.5rem;
  vertical-align: middle;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.knowhub-summary-table thead th {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
  padding-bottom: 0.75rem;
}

.knowhub-summary-table .col-prefix {
  width: 30px;
  font-weight: 600;
  text-align: center;
}

.knowhub-summary-table .col-label {
  font-size: 0.95rem;
  text-align: left;
}

.knowhub-summary-table .col-empty {
  width: 20px;
}

.knowhub-summary-table .col-value {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-align: right;
  width: 130px;
}

.knowhub-summary-table .col-pct {
  font-size: 0.9rem;
  text-align: right;
  width: 65px;
}

.knowhub-summary-table tbody tr:last-child td {
  border-bottom: none;
}

.knowhub-summary-table tr.row-base td {
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
  padding-bottom: 0.75rem;
}

.knowhub-summary-table tr.row-subtotal {
  font-weight: 700;
  font-size: 1.02rem;
}

.knowhub-summary-table tr.row-subtotal td {
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
  padding-top: 0.6rem;
  padding-bottom: 0.75rem;
}

/* Taux dans le tableau */
.knowhub-table td.rate {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive calculateur */
@media (max-width: 600px) {
  .knowhub-calculator-input {
    font-size: 1.25rem;
    padding: 0.85rem 1rem;
  }

  .knowhub-summary-box {
    padding: 1.25rem;
  }

  .knowhub-summary-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .knowhub-summary-row.highlight {
    flex-direction: row;
    align-items: center;
  }
}