.sleep-journal {
    max-width: var(--max-width);
    margin: 2rem auto;
    padding: 0 1rem;
}

.sleep-journal h1 {
    text-align: center;
    color: var(--primary);
    margin-bottom: 2rem;
}

.journal-container {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.journal-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--gray-200);
    padding-bottom: 1rem;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    background: none;
    color: var(--gray-800);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.tab-btn.active {
    color: var(--primary);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Formulaire */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input[type="date"],
.form-group input[type="time"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-200);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    outline: none;
}

.time-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Étoiles de notation */
.rating {
    display: flex;
    flex-direction: row-reverse;
    gap: 0.25rem;
}

.rating input {
    display: none;
}

.rating label {
    font-size: 2rem;
    color: var(--gray-200);
    cursor: pointer;
    transition: color 0.3s ease;
}

.rating label:hover,
.rating label:hover ~ label,
.rating input:checked ~ label {
    color: var(--primary);
}

/* Grille de facteurs */
.factors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 0.5rem;
}

.factor-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    border: 2px solid var(--gray-200);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.factor-item:hover {
    border-color: var(--primary);
}

.factor-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
}

/* Historique */
.history-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.filter-group {
    flex: 1;
}

.entries-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.entry-card {
    background: var(--gray-100);
    border-radius: 8px;
    padding: 1rem;
}

/* Statistiques */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--gray-100);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary);
    margin: 1rem 0;
}

.stat-trend {
    font-size: 0.875rem;
}

.stat-trend.positive {
    color: #22c55e;
}

.stat-trend.negative {
    color: #ef4444;
}

.charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.chart-container {
    background: var(--gray-100);
    border-radius: 8px;
    padding: 1.5rem;
}

.chart-container h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    text-align: center;
}

@media (max-width: 768px) {
    .journal-container {
        padding: 1rem;
    }
    
    .journal-tabs {
        flex-direction: column;
    }
    
    .time-inputs {
        grid-template-columns: 1fr;
    }
    
    .history-filters {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}