/**
 * Les Caractères - Styles des panneaux latéraux
 * Design plat avec lignes fines
 */

/* ========================================
   PANEL LATÉRAL GAUCHE
   ======================================== */

.left-panel {
    background: #fff;
    border-right: 1px solid #e0e0e0;
    padding: 1rem 1rem 1rem 0;
    position: sticky;
    top: calc(var(--header-height, 140px) + 2rem);
    max-height: calc(100vh - var(--header-height, 140px) - 4rem);
    overflow: hidden;
    transition: all 0.3s;
    z-index: 50;
}

.left-panel.collapsed {
    width: 40px;
    padding: 1.5rem 0;
}

.left-panel.collapsed .panel-content {
    display: none;
}

.toggle-btn {
    position: absolute;
    right: -5px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 60px;
    background: #fff;
    border: 1px solid #e0e0e0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s;
    z-index: 10;
}

.toggle-btn:hover {
    border-color: #999;
    color: #2c3e50;
}

.panel-content h3 {
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: #666;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
    flex-shrink: 0;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 0.5rem;
}

.panel-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
}

/* ========================================
   ZONE NOTES (DROITE)
   ======================================== */

.notes-area {
    background: #fff;
    border-left: 1px solid #e0e0e0;
    padding: 1rem 0 1rem 1.5rem;
}

.notes-area h3 {
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: #666;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 0.5rem;
}