.segmented {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.segmented label {
  margin: 0;
  padding: 0.45rem 1.2rem;
  font-weight: 500;
  cursor: pointer;
  border-left: 1px solid var(--line);
  background: var(--bg);
  transition: background 120ms;
}
.segmented label:first-of-type {
  border-left: 0;
}
.segmented label:hover {
  background: var(--bg-soft);
}
.segmented input:checked + label {
  background: var(--mark);
  color: var(--bg);
}
/* le focus clavier doit rester visible malgré l'input caché */
.segmented input:focus-visible + label {
  outline: 2px solid var(--ink);
  outline-offset: -2px;
}


/* ======================= */
/* FIELD */
.field {
  margin-bottom: 1.25rem;
}
.field > label,
.field > legend {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 500;
  color: var(--ink);
}
.field input[type="text"],
.field input[type="number"],
.field select {
  width: 100%;
  max-width: 28rem;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--text);
  font: inherit;
}

.field input:invalid:not(:placeholder-shown) {
  border-color: var(--danger);
}



.scrollable {
    max-height: 24rem;
    overflow-y: auto;
    border: 1px solid var(--line);
    border-radius: 4px;
  }




#version-form fieldset {
    border-top: 2px solid var(--ink);
    padding: 1rem 0 2rem;
    margin: 0 0 1.5rem;
}


#version-form legend {
    font-size: 1.05rem;
    font-weight: 600;
    padding: 0 0.6rem 0 0;
    color: var(--ink);
}

#version-form .hint {
    color: var(--muted);
    font-size: 0.85rem;
    margin: 0.25rem 0 0;
}


textarea {
    width: 100%;
    min-height: 6rem;
    padding: 0.6rem 0.7rem;
    border: 1px solid var(--line);
    border-radius: 4px;
    font: inherit;
    resize: vertical;
}

textarea:focus-visible,
input:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--ink);
    outline-offset: 2px;
}

/* --- Fichier --- */
#file-row {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    flex-wrap: wrap;
}

#file-error {
    color: var(--danger);
    font-size: 0.85rem;
    margin: 0.4rem 0 0;
}

#file-error:empty {
    display: none;
}

/* --- Références retenues --- */
#lecon-livres {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

#version-form .version-book {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.7rem;
    background: var(--bg-soft);
    border-left: 3px solid var(--ink);
    border-radius: 3px;
}

#version-form .version-book .title {
    flex: 1;
}

#version-form .version-book .authors {
    color: var(--muted);
}

#version-form .reference-remove {
    background: none;
    padding: 0.2rem 0.4rem;
    cursor: pointer;
    color: var(--muted);
    border-radius: 3px;
}

#version-form .reference-remove:hover {
    color: var(--danger);
    background: #fff;
}

#refs-empty {
    color: var(--muted);
    padding: 0.9rem 0;
    margin: 0;
}


/* --- Sélecteur de livres --- */
#version-form .toolbar {
    margin-bottom: 1rem;
}

#books-search {
    flex: 1;
    max-width: 22rem;
    padding: 0.45rem 0.6rem;
    border: 1px solid var(--line);
    border-radius: 4px;
    font: inherit;
}

#books-scroll {
    max-height: 24rem;
    overflow-y: auto;
    border: 1px solid var(--line);
    border-radius: 4px;
}





#books-table tr.is-selected {
    color: var(--muted);
}

#books-table tr.is-selected .select-book-btn {
    border-style: dashed;
    color: var(--mark);
}

/* --- Actions --- */
#version-actions {
    position: sticky;
    bottom: 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.9rem 0;
    background: #fff;
    border-top: 1px solid var(--line);
}

#version-submit {
    background: var(--ink);
    color: #fff;
    border: 0;
    border-radius: 4px;
    padding: 0.55rem 1.4rem;
    font: inherit;
    font-weight: 500;
    cursor: pointer;
}

#version-submit:disabled {
    background: var(--line);
    color: var(--muted);
    cursor: not-allowed;
}

#submit-hint {
    color: var(--muted);
    font-size: 0.9rem;
}