:root {
    --vert: #2F4F3E;
    --vert-clair: #4A7259;
    --or: #C99A3D;
    --or-clair: #E8C875;
    --creme: #FAF7F0;
    --creme-carte: #FFFFFF;
    --encre: #1F2A24;
    --gris: #6B7268;
    --bordure: #E2DDD1;
    --rouge-erreur: #B3543A;
  }

  * { box-sizing: border-box; }

  body {
    margin: 0;
    background: var(--creme);
    color: var(--encre);
    font-family: 'Inter', system-ui, sans-serif;
    min-height: 100vh;
  }

  .skip-link:focus {
    position: fixed; top: 8px; left: 8px; z-index: 100;
    background: var(--vert); color: white; padding: 8px 16px; border-radius: 4px;
  }
  .skip-link { position: absolute; left: -9999px; }

  header {
    background: var(--vert);
    color: var(--creme);
    padding: 2rem 1.25rem 2.5rem;
    position: relative;
    overflow: hidden;
  }
  header::after {
    content: "";
    position: absolute;
    right: -40px; top: -40px;
    width: 180px; height: 180px;
    border-radius: 50%;
    background: var(--vert-clair);
    opacity: 0.4;
  }
  header h1 {
    font-family: 'Fraunces', serif;
    font-weight: 600;
    font-size: clamp(1.6rem, 5vw, 2.4rem);
    margin: 0 0 0.25rem;
    position: relative;
    z-index: 1;
  }
  header p {
    margin: 0;
    color: var(--or-clair);
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
  }

  main {
    max-width: 720px;
    margin: 0 auto;
    padding: 1.25rem;
    padding-bottom: 4rem;
  }

  .panel {
    background: var(--creme-carte);
    border-radius: 14px;
    padding: 1.5rem;
    margin-top: -1.75rem;
    position: relative;
    z-index: 2;
    box-shadow: 0 6px 24px rgba(47, 79, 62, 0.12);
    margin-bottom: 1.5rem;
  }

  .profil-toggle {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
  }
  .profil-toggle button {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--bordure);
    background: var(--creme-carte);
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gris);
    cursor: pointer;
    transition: all 0.15s ease;
  }
  .profil-toggle button[aria-pressed="true"] {
    border-color: var(--vert);
    background: var(--vert);
    color: white;
  }
  .profil-toggle button:focus-visible {
    outline: 3px solid var(--or);
    outline-offset: 2px;
  }

  .champ {
    margin-bottom: 1rem;
  }
  .champ label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gris);
    margin-bottom: 0.35rem;
  }
  .champ select, .champ input {
    width: 100%;
    padding: 0.7rem 0.85rem;
    border: 2px solid var(--bordure);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    background: var(--creme-carte);
    color: var(--encre);
  }
  .champ select:focus-visible, .champ input:focus-visible {
    outline: none;
    border-color: var(--or);
    box-shadow: 0 0 0 3px rgba(201, 154, 61, 0.25);
  }

  .deux-colonnes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .btn-rechercher {
    width: 100%;
    padding: 0.85rem;
    background: var(--or);
    color: var(--vert);
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s ease;
  }
  .btn-rechercher:hover { background: var(--or-clair); }
  .btn-rechercher:focus-visible {
    outline: 3px solid var(--vert);
    outline-offset: 2px;
  }
  .btn-rechercher:disabled {
    background: var(--bordure);
    color: var(--gris);
    cursor: not-allowed;
  }

  .etat {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--gris);
  }
  .etat.erreur {
    color: var(--rouge-erreur);
  }
  .etat svg { width: 40px; height: 40px; margin-bottom: 0.75rem; opacity: 0.6; }

  .spinner {
    width: 32px; height: 32px;
    border: 3px solid var(--bordure);
    border-top-color: var(--vert);
    border-radius: 50%;
    margin: 0 auto 0.75rem;
    animation: tourner 0.8s linear infinite;
  }
  @keyframes tourner { to { transform: rotate(360deg); } }
  @media (prefers-reduced-motion: reduce) {
    .spinner { animation: none; }
  }

  .resultats-entete {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1rem;
    padding: 0 0.25rem;
  }
  .resultats-entete h2 {
    font-family: 'Fraunces', serif;
    font-size: 1.3rem;
    margin: 0;
    color: var(--vert);
  }
  .resultats-entete .compte {
    font-size: 0.85rem;
    color: var(--gris);
  }

  .entete-semaine {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: 'Fraunces', serif;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--vert);
    margin: 1.75rem 0.25rem 0.85rem;
  }
  .entete-semaine:first-of-type {
    margin-top: 0.25rem;
  }
  .entete-semaine::before {
    content: '📅';
    font-size: 0.95rem;
  }
  .entete-semaine::after {
    content: '';
    flex: 1;
    height: 2px;
    background: linear-gradient(to right, var(--or-clair), transparent);
    border-radius: 2px;
  }

  .billet {
    background: var(--creme-carte);
    border-radius: 12px;
    margin-bottom: 0.85rem;
    display: flex;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(47, 79, 62, 0.08);
    border: 1px solid var(--bordure);
    border-left-width: 5px;
    border-left-color: var(--bordure);
    position: relative;
  }

  .billet.reporte {
    opacity: 0.7;
  }
  .billet.reporte .billet-corps {
    min-height: 70px;
  }
  .tampon-reporte {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-12deg);
    border: 3px solid var(--rouge-erreur);
    color: var(--rouge-erreur);
    font-weight: 700;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.25rem 0.9rem;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.85);
    z-index: 2;
    pointer-events: none;
    white-space: nowrap;
  }

  .bandeau-install {
    max-width: 720px;
    margin: 0 auto 1rem;
    padding: 0 1.25rem;
  }
  .bandeau-install-contenu {
    background: var(--or-clair);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    font-size: 0.88rem;
    color: var(--vert);
    margin-top: -1.25rem;
    position: relative;
    z-index: 3;
  }

  .bandeau-modif {
    background: var(--vert);
    color: white;
    border-radius: 10px;
    padding: 0.75rem 1rem;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 1rem;
  }
  .bandeau-install-contenu button {
    background: var(--vert);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 0.5rem 0.9rem;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    white-space: nowrap;
  }
  .bandeau-install-fermer {
    background: none;
    border: none;
    color: var(--vert);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0 0.25rem;
    line-height: 1;
  }
  .billet-heure {
    background: var(--vert);
    color: white;
    padding: 1rem 0.9rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 78px;
    text-align: center;
  }
  .billet-heure .jour {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    opacity: 0.85;
  }
  .billet-heure .date {
    font-family: 'Fraunces', serif;
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1.1;
  }
  .billet-heure .mois {
    font-size: 0.7rem;
    text-transform: uppercase;
    opacity: 0.85;
  }
  .billet-corps {
    padding: 0.9rem 1rem;
    flex: 1;
    min-width: 0;
  }
  .billet-matiere {
    font-weight: 700;
    font-size: 1.02rem;
    color: var(--encre);
    margin-bottom: 0.25rem;
  }
  .billet-details {
    font-size: 0.88rem;
    color: var(--gris);
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 0.9rem;
  }
  .billet-details span {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
  }
  .badge-maths {
    display: inline-block;
    background: var(--or-clair);
    color: var(--vert);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 100px;
    margin-top: 0.35rem;
  }

  footer {
    text-align: center;
    font-size: 0.8rem;
    color: var(--gris);
    padding: 1.5rem;
  }

  @media (min-width: 640px) {
    .billet-heure { min-width: 92px; }
  }
  
 .btn-semaines-passees {
  display: block;
  width: 100%;
  margin: 0 0 1rem;
  padding: 0.7rem 1rem;
  border: 1px solid #d5d0c8;
  border-radius: 8px;
  background: transparent;
  color: #5f5a52;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

.btn-semaines-passees:hover {
  background: #f3f1ed;
}


.entete-semaine-info {
  font-size: 0.8em;
  font-weight: 400;
  opacity: 0.75;
  margin-left: 0.5em;
}