/* ==========================================================================
   RETRAITES EN DIRECT — Main Stylesheet
   Option C : Bleu-Gris Moderne
   ========================================================================== */

/* --- Variables & Tokens --- */
:root {
  /* Palette principale */
  --bg-body: #f4f6f9;
  --bg-white: #ffffff;
  --bg-hero: linear-gradient(135deg, #0f4c75 0%, #0a2e4a 50%, #061e33 100%);
  --bg-dark: #061e33;
  --bg-card: rgba(255,255,255,0.08);
  --border-card: rgba(255,255,255,0.12);

  /* Texte */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --text-white: #ffffff;
  --text-white-muted: rgba(255,255,255,0.6);

  /* Accents */
  --accent: #00b4d8;
  --accent-hover: #0096c7;
  --primary: #0f4c75;
  --primary-light: #3282b8;

  /* Blocs argument */
  --arg-bg: #e8f0fb;
  --arg-border: #0f4c75;
  --contra-bg: #fce8e8;
  --contra-border: #b91c1c;
  --tranch-bg: #e6f6ec;
  --tranch-border: #15803d;

  /* Espacements */
  --section-padding: 80px 0;
  --container-width: 1140px;
  --radius: 12px;
  --radius-sm: 8px;

  /* Transitions */
  --transition: 0.25s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.7;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Header --- */
.site-header {
  background: var(--bg-white);
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 2px;
}
.site-logo span { color: var(--accent); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 0;
}
.site-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 20px 16px;
  transition: color var(--transition), border-color var(--transition);
  border-bottom: 2px solid transparent;
}
.site-nav a:hover,
.site-nav a.active {
  color: var(--primary);
  border-bottom-color: var(--accent);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: var(--transition);
}

/* --- Hero --- */
.hero {
  background: var(--bg-hero);
  padding: 80px 32px 70px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,180,216,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero h1 {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 16px;
  letter-spacing: -0.03em;
  line-height: 1.2;
  position: relative;
}

.hero .subtitle {
  font-size: 1.1rem;
  color: var(--text-white-muted);
  max-width: 580px;
  margin: 0 auto 48px;
  position: relative;
  line-height: 1.6;
}

/* --- Section générique --- */
.section {
  padding: var(--section-padding);
}
.section--white {
  background: var(--bg-white);
}
.section--alt {
  background: var(--bg-body);
}
.section--dark {
  background: var(--bg-dark);
  color: var(--text-white);
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 40px;
}
.section-title--center,
.section-subtitle--center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* --- Blocs argument / contre-argument / tranchage --- */
.arg-blocks {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 820px;
  margin: 0 auto;
}

.arg-block {
  padding: 24px 28px;
  border-radius: var(--radius-sm);
  border-left: 4px solid;
  font-size: 0.95rem;
  line-height: 1.8;
}
.arg-block .block-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}

.arg-block--argument {
  background: var(--arg-bg);
  border-color: var(--arg-border);
}
.arg-block--argument .block-label { color: var(--arg-border); }

.arg-block--contra {
  background: var(--contra-bg);
  border-color: var(--contra-border);
}
.arg-block--contra .block-label { color: var(--contra-border); }

.arg-block--tranchage {
  background: var(--tranch-bg);
  border-color: var(--tranch-border);
}
.arg-block--tranchage .block-label { color: var(--tranch-border); }

/* Source tooltip */
.source-ref {
  text-decoration: underline dotted;
  text-underline-offset: 3px;
  cursor: help;
  color: inherit;
  font-weight: 500;
  position: relative;
}
.source-ref:hover::after {
  content: attr(data-source);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-dark);
  color: var(--text-white);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 400;
  white-space: nowrap;
  z-index: 10;
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* --- Cartes génériques --- */
.card {
  background: var(--bg-white);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

/* --- Tableau de données --- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 24px 0;
}
.data-table th {
  background: var(--primary);
  color: var(--text-white);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #e5e7eb;
}
.data-table tr:nth-child(even) td {
  background: #f9fafb;
}
.data-table tr:hover td {
  background: #eef2f7;
}

/* --- Boutons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn--primary {
  background: var(--accent);
  color: var(--text-white);
}
.btn--primary:hover {
  background: var(--accent-hover);
  color: var(--text-white);
  transform: translateY(-1px);
}
.btn--outline {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.3);
  color: var(--text-white);
}
.btn--outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Footer --- */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.5);
  padding: 40px 32px;
  text-align: center;
  font-size: 0.85rem;
  line-height: 1.8;
}
.site-footer a {
  color: var(--accent);
}
.site-footer .footer-links {
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.site-footer .footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
}
.site-footer .footer-links a:hover {
  color: var(--accent);
}
.site-footer .footer-copy {
  margin-top: 16px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
}

/* --- Comprendre — Navigation latérale --- */
.comprendre-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  align-items: start;
}

.comprendre-nav {
  position: sticky;
  top: 80px;
  background: var(--bg-white);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius);
  padding: 20px;
}
.comprendre-nav h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  margin-bottom: 16px;
  font-weight: 600;
}
.comprendre-nav a {
  display: block;
  padding: 8px 12px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  border-radius: 6px;
  margin-bottom: 2px;
  transition: all var(--transition);
  text-decoration: none;
}
.comprendre-nav a:hover,
.comprendre-nav a.active {
  background: var(--arg-bg);
  color: var(--primary);
}

.comprendre-section {
  margin-bottom: 64px;
  scroll-margin-top: 80px;
}
.comprendre-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
}

/* --- Propositions --- */
.proposition-card {
  background: var(--bg-white);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 16px;
  transition: box-shadow var(--transition);
}
.proposition-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}
.proposition-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.proposition-author {
  font-weight: 700;
  color: var(--primary);
  font-size: 1rem;
}
.proposition-parti {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--arg-bg);
  color: var(--primary);
}
.proposition-date {
  font-size: 0.82rem;
  color: var(--text-light);
}
.proposition-text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.proposition-source {
  font-size: 0.82rem;
  color: var(--accent);
}

/* --- Grille propositions --- */
.prop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  align-items: start;
}

/* Carte orpheline : s'étale sur 2 colonnes mais garde la largeur d'une seule, centrée */
.prop-grid > article:last-child:nth-child(odd) {
  grid-column: 1 / -1;
  max-width: calc(50% - 12px);
  margin: 0 auto;
}

/* --- Propositions redesign (cards avec avatar) --- */
.prop-card {
  background: var(--bg-white);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 20px;
  transition: box-shadow var(--transition);
}
.prop-card:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.07);
}
.prop-card__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}
.prop-card__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid #e5e7eb;
}
.prop-card__avatar--initials {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.prop-card__meta {
  flex: 1;
  min-width: 0;
}
.prop-card__author {
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary);
}
.prop-card__fonction {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 2px;
}
.prop-card__date {
  font-size: 0.78rem;
  color: var(--text-light);
  white-space: nowrap;
  flex-shrink: 0;
}
.prop-card__body {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.prop-card__source {
  font-size: 0.82rem;
  color: var(--accent);
  text-decoration: none;
}
.prop-card__source:hover {
  text-decoration: underline;
}

/* --- Introduction rapide accueil --- */
.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.intro-card {
  text-align: center;
  padding: 32px 24px;
}
.intro-card .intro-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}
.intro-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.intro-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Préambule (page à propos) --- */
.apropos-content {
  max-width: 760px;
  margin: 0 auto;
  font-size: 1.02rem;
  line-height: 1.9;
}
.apropos-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  margin: 40px 0 16px;
}
.apropos-content p {
  margin-bottom: 20px;
  color: var(--text-primary);
}
.apropos-content ul {
  margin: 16px 0 24px 24px;
}
.apropos-content li {
  margin-bottom: 8px;
  color: var(--text-secondary);
}

/* --- Blog --- */
.blog-empty {
  text-align: center;
  color: var(--text-light);
  padding: 48px 0;
}

.blog-label-wrap {
  text-align: center;
  margin-bottom: 12px;
}

.blog-label {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 20px;
  padding: 3px 14px;
}

.blog-featured {
  max-width: 560px;
  margin: 0 auto 52px;
}

/* Neutralise le fond blanc Twitter qui déborde parfois */
.blog-featured .twitter-tweet,
.blog-grid-item .twitter-tweet {
  margin: 0 auto !important;
}

.blog-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
  color: var(--text-light);
  font-size: 0.78rem;
}
.blog-divider::before,
.blog-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: #e5e7eb;
}

.blog-grid {
  column-count: 2;
  column-gap: 32px;
}

.blog-grid-item {
  break-inside: avoid;
  margin-bottom: 28px;
}

/* --- Formulaire de contact --- */
.contact-card {
  background: var(--bg-white);
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.06);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-form__duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.contact-form__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.contact-form__input,
.contact-form__textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #e5e7eb;
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-primary);
  background: #fafbfc;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  outline: none;
}

.contact-form__input:hover,
.contact-form__textarea:hover {
  border-color: #c9d1da;
}

.contact-form__input:focus,
.contact-form__textarea:focus {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(0,180,216,0.10);
}

.contact-form__textarea {
  resize: vertical;
  min-height: 160px;
  line-height: 1.65;
}

.contact-form__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 4px;
}

.contact-form__note {
  font-size: 0.77rem;
  color: var(--text-light);
}

.contact-form__submit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.contact-form__submit:hover {
  background: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,180,216,0.25);
}

.contact-errors {
  background: #fce8e8;
  border-left: 4px solid var(--contra-border);
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 8px;
  font-size: 0.88rem;
  color: var(--contra-border);
}

.contact-errors p { margin-bottom: 4px; }
.contact-errors p:last-child { margin-bottom: 0; }

.contact-success {
  text-align: center;
  padding: 72px 32px;
}

.contact-success__icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--tranch-bg);
  color: var(--tranch-border);
  font-size: 1.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 4px 16px rgba(21,128,61,0.15);
}

.contact-success h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.contact-success p {
  color: var(--text-secondary);
  font-size: 1rem;
}

@media (max-width: 560px) {
  .contact-card { padding: 24px 20px; }
  .contact-form__duo { grid-template-columns: 1fr; }
}

/* --- Utilities --- */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 40px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 40px; }